code changes in Gnb-DU config update for CLA [Issue Id - ODUHIGH-335]
[o-du/l2.git] / src / du_app / du_f1ap_msg_hdl.c
index 0c31605..31b432b 100644 (file)
@@ -22,6 +22,7 @@
 #include "legtp.h"
 #include "lkw.x"
 #include "lrg.x"
+#include "F1AP-PDU.h"
 #include "du_app_mac_inf.h"
 #include "du_cfg.h"
 #include "du_app_rlc_inf.h"
 #include "SchedulingRequestResourceConfig.h"
 #include<ProtocolIE-Field.h>
 #include "ProtocolExtensionField.h"
-#include "F1AP-PDU.h"
 #include "odu_common_codec.h"
 #include "du_mgr.h"
 #include "du_cell_mgr.h"
 #include "du_f1ap_msg_hdl.h"
+#include "DRBs-Setup-Item.h"
+#include "DLUPTNLInformation-ToBeSetup-List.h"
+#include "DLUPTNLInformation-ToBeSetup-Item.h"
+#include "UPTransportLayerInformation.h"
+#include "GTPTunnel.h"
+
+#ifdef O1_ENABLE
+#include "ConfigInterface.h"
+extern StartupConfig g_cfg;
+#endif
 
 DuCfgParams duCfgParam;
 
-/*******************************************************************
+/************************************************************************
  *
- * @brief Builds Uplink Info for NR 
+ * @brief Converts enum values into actual value of Poll retransmit timer
  *
  * @details
  *
- *    Function : BuildULNRInfo
+ *    Function : getPollPdu
  *
- *    Functionality: Building NR Uplink Info
+ *    Functionality: Converts enum values into actual value of poll 
+ *    retransmit timer
  *
- * @params[in] NRFreqInfo_t *ulnrfreq
- * @return ROK     - success
- *         RFAILED - failure
+ * @params[in] Enum value of pollPdu
+ * @return Actual value of pollPdu
  *
- * ****************************************************************/
-uint8_t BuildULNRInfo(NRFreqInfo_t *ulnrfreq)
+ * **********************************************************************/
+
+uint16_t getPollRetxTmr(uint8_t pollRetxTmrCfg)
 {
-   uint8_t idx=0;
-   ulnrfreq->nRARFCN = duCfgParam.srvdCellLst[0].duCellInfo.f1Mode.mode.\
-                      fdd.ulNrFreqInfo.nrArfcn;
-   ulnrfreq->freqBandListNr.list.count = 1;
-   ulnrfreq->freqBandListNr.list.size = sizeof(FreqBandNrItem_t *);
-   DU_ALLOC(ulnrfreq->freqBandListNr.list.array,ulnrfreq->freqBandListNr.list.size);
-   if(ulnrfreq->freqBandListNr.list.array == NULLP)
-   {
-      return RFAILED;
-   }
-   for(idx=0;idx<ulnrfreq->freqBandListNr.list.count;idx++)
+   uint16_t pollRetxTmr;
+
+   /* All values of poll retx timer are at interval of 5ms.
+    * This is valid upto 250ms
+    * Hence converting the enum value to actual value by multiplying it to 5
+    */
+   if(pollRetxTmrCfg <= T_PollRetransmit_ms250)
+      pollRetxTmr = (pollRetxTmrCfg + 1) * 5;
+   else
    {
-      DU_ALLOC(ulnrfreq->freqBandListNr.list.array[idx],sizeof(FreqBandNrItem_t));
-      if(ulnrfreq->freqBandListNr.list.array[idx] == NULLP)
+      switch(pollRetxTmrCfg)
       {
-        return RFAILED;
+         case T_PollRetransmit_ms300:
+            pollRetxTmr = 300;
+            break;
+         case T_PollRetransmit_ms350:
+            pollRetxTmr = 350;
+            break;
+         case T_PollRetransmit_ms400:
+            pollRetxTmr = 400;
+            break;
+         case T_PollRetransmit_ms450:
+            pollRetxTmr = 450;
+            break;
+         case T_PollRetransmit_ms500:
+            pollRetxTmr = 500;
+            break;
+         case T_PollRetransmit_ms800:
+            pollRetxTmr = 800;
+            break;
+         default:
+            DU_LOG("\nERROR  -->  F1AP: Invalid value of Poll Retransmit timer");
+            pollRetxTmr = 0;
       }
    }
-   ulnrfreq->freqBandListNr.list.array[0]->freqBandIndicatorNr = \
-                                                                duCfgParam.srvdCellLst[0].duCellInfo.f1Mode.mode.fdd.ulNrFreqInfo.\
-                                                                freqBand[0].nrFreqBand;
-   ulnrfreq->freqBandListNr.list.array[0]->supportedSULBandList.list.count = SUL_BAND_COUNT;
-   return ROK;
+   return pollRetxTmr; 
 }
+
 /*******************************************************************
  *
- * @brief Builds Downlink NR Info 
+ * @brief Converts enum values into actual value of PollPdu
  *
  * @details
  *
- *    Function : BuildDLNRInfo
+ *    Function : getPollPdu
  *
- *    Functionality: Building Downlink NR Info
- *    
- * @params[in] NRFreqInfo_t *dlnrfreq
- * @return ROK     - success
- *         RFAILED - failure
+ *    Functionality: Converts enum values into actual value of PollPdu
+ *
+ * @params[in] Enum value of pollPdu
+ * @return Actual value of pollPdu
  *
  * ****************************************************************/
-uint8_t BuildDLNRInfo(NRFreqInfo_t *dlnrfreq)
+int32_t getPollPdu(uint8_t pollPduCfg)
 {
-   uint8_t idx=0;
-   dlnrfreq->nRARFCN = duCfgParam.srvdCellLst[0].duCellInfo.f1Mode.mode.\
-                      fdd.dlNrFreqInfo.nrArfcn;
-   dlnrfreq->freqBandListNr.list.count = 1;
-   dlnrfreq->freqBandListNr.list.size = sizeof(FreqBandNrItem_t *);
-   DU_ALLOC(dlnrfreq->freqBandListNr.list.array,dlnrfreq->freqBandListNr.list.size);
-   if(dlnrfreq->freqBandListNr.list.array == NULLP)
+   int32_t pollPdu;
+   switch(pollPduCfg)
    {
-      return RFAILED;   
+      case PollPDU_p4:
+         pollPdu = 4;
+         break;
+      case PollPDU_p8:
+         pollPdu = 8;
+         break;
+      case PollPDU_p16:
+         pollPdu = 16;
+         break;
+      case PollPDU_p32:
+         pollPdu = 32;
+         break;
+      case PollPDU_p64:
+         pollPdu = 64;
+         break;
+      case PollPDU_p128:
+         pollPdu = 128;
+         break;
+      case PollPDU_p256:
+         pollPdu = 256;
+         break;
+      case PollPDU_p512:
+         pollPdu = 512;
+         break;
+      case PollPDU_p1024:
+         pollPdu = 1024;
+         break;
+      case PollPDU_p2048:
+         pollPdu = 2048;
+         break;
+      case PollPDU_p4096:
+         pollPdu = 4096;
+         break;
+      case PollPDU_p6144:
+         pollPdu = 6144;
+         break;
+      case PollPDU_p8192:
+         pollPdu = 8192;
+         break;
+      case PollPDU_p12288:
+         pollPdu = 12288;
+         break;
+      case PollPDU_p16384:
+         pollPdu = 16384;
+         break;
+      case PollPDU_p20480:
+         pollPdu = 20480;
+         break;
+      case PollPDU_p24576:
+         pollPdu = 24576;
+         break;
+      case PollPDU_p28672:
+         pollPdu = 28672;
+         break;
+      case PollPDU_p32768:
+         pollPdu = 32768;
+         break;
+      case PollPDU_p40960:
+         pollPdu = 40960;
+         break;
+      case PollPDU_p49152:
+         pollPdu = 49152;
+         break;
+      case PollPDU_p57344:
+         pollPdu = 57344;
+         break;
+      case PollPDU_p65536:
+         pollPdu = 65536;
+         break;
+      case PollPDU_infinity:
+         pollPdu = -1;
+        break;
+      default:
+         DU_LOG("\nERROR  -->  F1AP: Invalid value of poll pdu");
+        pollPdu = 0;
+         break;
    }
-   for(idx=0;idx< dlnrfreq->freqBandListNr.list.count;idx++)
-   {
-      DU_ALLOC(dlnrfreq->freqBandListNr.list.array[idx],sizeof(FreqBandNrItem_t));
-      if(dlnrfreq->freqBandListNr.list.array[idx] == NULLP)
-      {
-        return RFAILED;
-      }
-   }   
-   dlnrfreq->freqBandListNr.list.array[0]->freqBandIndicatorNr = \
-                                                                duCfgParam.srvdCellLst[0].duCellInfo.f1Mode.mode.fdd.dlNrFreqInfo.\
-                                                                freqBand[0].nrFreqBand;
-   dlnrfreq->freqBandListNr.list.array[0]->supportedSULBandList.list.count = SUL_BAND_COUNT;
-
-   return ROK;
+   return pollPdu;
 }
 
 /*******************************************************************
  *
- * @brief Builds NRCell ID 
+ * @brief Converts enum values into actual value of poll bytes
  *
  * @details
  *
- *    Function : BuildNrCellId
+ *    Function : getPollByte
  *
- *    Functionality: Building the NR Cell ID
+ *    Functionality: Converts enum values into actual value of pollBytes
  *
- * @params[in] BIT_STRING_t *nrcell
- * @return ROK     - success
- *         RFAILED - failure
+ * @params[in] Enum value
+ * @return Actual value
  *
  * ****************************************************************/
-
-S16 BuildNrCellId(BIT_STRING_t *nrcell)
+int32_t getPollByte(uint16_t pollBytesCfg)
 {
-   memset(nrcell->buf, 0, nrcell->size);
-   nrcell->buf[4]   = 16; 
-   nrcell->bits_unused = 4;
-   return ROK;
+   int32_t pollBytes;
+   switch(pollBytesCfg)
+   {
+      case PollByte_kB1:
+         pollBytes = 1000;
+         break;
+      case PollByte_kB2:
+         pollBytes = 2000;
+         break;
+      case PollByte_kB5:
+         pollBytes = 5000;
+         break;
+      case PollByte_kB8:
+         pollBytes = 8000;
+         break;
+      case PollByte_kB10:
+         pollBytes = 10000;
+         break;
+      case PollByte_kB15:
+         pollBytes = 15000;
+         break;
+      case PollByte_kB25:
+         pollBytes = 25000;
+         break;
+      case PollByte_kB50:
+         pollBytes = 50000;
+         break;
+      case PollByte_kB75:
+         pollBytes = 75000;
+         break;
+      case PollByte_kB100:
+         pollBytes = 100000;
+         break;
+      case PollByte_kB125:
+         pollBytes = 125000;
+         break;
+      case PollByte_kB250:
+         pollBytes = 250000;
+         break;
+      case PollByte_kB375:
+         pollBytes = 375000;
+         break;
+      case PollByte_kB500:
+         pollBytes = 500000;
+         break;
+      case PollByte_kB750:
+         pollBytes = 750000;
+         break;
+      case PollByte_kB1000:
+         pollBytes = 1000000;
+         break;
+      case PollByte_kB1250:
+         pollBytes = 1250000;
+         break;
+      case PollByte_kB1500:
+         pollBytes = 1500000;
+         break;
+      case PollByte_kB2000:
+         pollBytes = 2000000;
+         break;
+      case PollByte_kB3000:
+         pollBytes = 3000000;
+         break;
+      case PollByte_kB4000:
+         pollBytes = 4000000;
+         break;
+      case PollByte_kB4500:
+         pollBytes = 4500000;
+         break;
+      case PollByte_kB5000:
+         pollBytes = 5000000;
+         break;
+      case PollByte_kB5500:
+         pollBytes = 5500000;
+         break;
+      case PollByte_kB6000:
+         pollBytes = 6000000;
+         break;
+      case PollByte_kB6500:
+         pollBytes = 6500000;
+         break;
+      case PollByte_kB7000:
+         pollBytes = 7000000;
+         break;
+      case PollByte_kB7500:
+         pollBytes = 7500000;
+         break;
+      case PollByte_mB8:
+         pollBytes = 8000000;
+         break;
+      case PollByte_mB9:
+         pollBytes = 9000000;
+         break;
+      case PollByte_mB10:
+         pollBytes = 10000000;
+         break;
+      case PollByte_mB11:
+         pollBytes = 11000000;
+         break;
+      case PollByte_mB12:
+         pollBytes = 12000000;
+         break;
+      case PollByte_mB13:
+         pollBytes = 13000000;
+         break;
+      case PollByte_mB14:
+         pollBytes = 14000000;
+         break;
+      case PollByte_mB15:
+         pollBytes = 15000000;
+         break;
+      case PollByte_mB16:
+         pollBytes = 16000000;
+         break;
+      case PollByte_mB17:
+         pollBytes = 17000000;
+         break;
+      case PollByte_mB18:
+         pollBytes = 18000000;
+         break;
+      case PollByte_mB20:
+         pollBytes = 20000000;
+         break;
+      case PollByte_mB25:
+         pollBytes = 25000000;
+         break;
+      case PollByte_mB30:
+         pollBytes = 30000000;
+         break;
+      case PollByte_mB40:
+         pollBytes = 40000000;
+         break;
+      case PollByte_infinity:
+         pollBytes = -1;
+         break;
+      default:
+         DU_LOG("\nERROR  -->  F1AP: Invalid value of poll bytes");
+         pollBytes = 0;
+   }
+   return pollBytes;
 }
 
 /*******************************************************************
  *
- * @brief Builds Nrcgi 
+ * @brief Converts enum values into actual value of maxRetx
  *
  * @details
  *
- *    Function : BuildNrcgi
+ *    Function : getMaxRetx
  *
- *    Functionality: Building the PLMN ID and NR Cell id
+ *    Functionality: Converts enum values into actual value of maxRetx
  *
- * @params[in] NRCGI_t *nrcgi
- * @return ROK     - success
- *         RFAILED - failure
+ * @params[in] Enum value
+ * @return Actual value
  *
  * ****************************************************************/
-uint8_t BuildNrcgi(NRCGI_t *nrcgi)
+uint8_t getMaxRetx(uint8_t maxRetxCfg)
 {
-   uint8_t ret;
-   uint8_t byteSize = 5;
-   /* Allocate Buffer Memory */
-   nrcgi->pLMN_Identity.size = PLMN_SIZE * sizeof(uint8_t);
-   DU_ALLOC(nrcgi->pLMN_Identity.buf, nrcgi->pLMN_Identity.size);
-   if(nrcgi->pLMN_Identity.buf == NULLP)
-   {
-      return RFAILED;
-   }
-   ret = buildPlmnId(duCfgParam.srvdCellLst[0].duCellInfo.cellInfo.nrCgi.plmn,\
-        nrcgi->pLMN_Identity.buf); // Building PLMN function
-   if(ret != ROK)
-   {
-      return RFAILED;
-   }
-   /*nrCellIdentity*/
-   nrcgi->nRCellIdentity.size = byteSize * sizeof(uint8_t);
-   DU_ALLOC(nrcgi->nRCellIdentity.buf, nrcgi->nRCellIdentity.size); 
-   if(nrcgi->nRCellIdentity.buf == NULLP)
+   uint8_t maxRetx;
+   switch(maxRetxCfg)
    {
-      return RFAILED;
+      case UL_AM_RLC__maxRetxThreshold_t1:
+         maxRetx = 1;
+         break;
+      case UL_AM_RLC__maxRetxThreshold_t2:
+         maxRetx = 2;
+         break;
+      case UL_AM_RLC__maxRetxThreshold_t3:
+         maxRetx = 3;
+         break;
+      case UL_AM_RLC__maxRetxThreshold_t4:
+         maxRetx = 4;
+         break;
+      case UL_AM_RLC__maxRetxThreshold_t6:
+         maxRetx = 6;
+         break;
+      case UL_AM_RLC__maxRetxThreshold_t8:
+         maxRetx = 8;
+         break;
+      case UL_AM_RLC__maxRetxThreshold_t16:
+         maxRetx = 16;
+         break;
+      case UL_AM_RLC__maxRetxThreshold_t32:
+         maxRetx = 32;
+         break;
+      default:
+         DU_LOG("\nERROR  -->  F1AP: Invalid configuration for Max retransmission threshold");
+         maxRetx = 0;
    }
-   BuildNrCellId(&nrcgi->nRCellIdentity);
-
-   return ROK;
+   return maxRetx;
 }
+
 /*******************************************************************
- *
- * @brief Builds FiveGStac 
+ * @brief Converts enum values into actual value of reassembly timer
  *
  * @details
  *
- *    Function : BuildFiveGSTac
+ *    Function : getReAsmblTmr
  *
- *    Functionality: Building the FiveGSTac
+ *    Functionality: Converts enum values into actual value of reassembly 
+ *    timer
  *
- * @params[in] OCTET_STRING_t *fivegsTac
- * @return ROK     - success
- *         RFAILED - failure
+ * @params[in] Enum value of reassembly timer
+ * @return Actual value of reassembly timer
  *
- * ****************************************************************/
-uint8_t BuildFiveGSTac(Served_Cell_Information_t *servcell)
+ * **********************************************************************/
+
+int8_t getReAsmblTmr(uint8_t reAsmblTmrCfg)
 {
-   DU_ALLOC(servcell->fiveGS_TAC,sizeof(FiveGS_TAC_t));
-   if(servcell->fiveGS_TAC == NULLP)
+   int8_t reAsmblTmr = 0;
+   
+   if(reAsmblTmrCfg == T_Reassembly_ms0)
    {
-      return RFAILED;
+      reAsmblTmr = 0;
    }
-   servcell->fiveGS_TAC->size = 3 * sizeof(uint8_t);
-   DU_ALLOC(servcell->fiveGS_TAC->buf,\
-        sizeof(servcell->fiveGS_TAC->size));
-   if(servcell->fiveGS_TAC->buf == NULLP)
+   else if(reAsmblTmrCfg >= T_Reassembly_ms5 || reAsmblTmrCfg <= T_Reassembly_ms100)
    {
-      return RFAILED;
+     /* All values of re assembly timer are at interval of 5ms.
+      * This is valid upto 100ms
+      * Hence converting the enum value to actual value by multiplying it to 5
+      */
+      reAsmblTmr = reAsmblTmrCfg * 5;
    }
-   servcell->fiveGS_TAC->buf[0] = 0;
-   servcell->fiveGS_TAC->buf[1] = 0;
-   servcell->fiveGS_TAC->buf[2] = duCfgParam.srvdCellLst[0].duCellInfo.tac;
-   return ROK;  
+   else if(reAsmblTmrCfg >= T_Reassembly_ms110 || reAsmblTmrCfg <= T_Reassembly_ms200)
+   {
+     /* All values of re assembly timer are at interval of 10ms.
+      * This is valid upto 200ms
+      * since enum value starts from 20 for 100ms, subtracting 10 and
+      * converting the enum value to actual value by multiplying it to 10
+      */
+      reAsmblTmr = ((reAsmblTmrCfg-10) * 10);
+   }
+   else
+   {
+      DU_LOG("\nERROR  -->  F1AP : Invalid value of Re Assembly timer %d", reAsmblTmrCfg);
+      reAsmblTmr = -1;
+   }
+   return reAsmblTmr; 
 }
-/*******************************************************************
+
+/************************************************************************
  *
- * @brief Builds NR Mode 
+ * @brief Converts enum values into actual value of status prohibit timer
  *
  * @details
  *
- *    Function : BuildNrMode
+ *    Function : getStatProhTmr
  *
- *    Functionality: Building the NR Mode
+ *    Functionality: Converts enum values into actual value of status prohibit 
+ *    timer
  *
- * @params[in] NR_Mode_Info_t *fdd
- * @return ROK     - success
- *         RFAILED - failure
+ * @params[in] Enum value of status prohibit timer
+ * @return Actual value of status prohibit timer
  *
- * ****************************************************************/
-uint8_t BuildNrMode(NR_Mode_Info_t *mode)
+ * **********************************************************************/
+
+int16_t getStatProhTmr(uint8_t statProhTmrCfg)
 {
-   uint8_t BuildDLNRInforet=0;
-   uint8_t BuildULNRInforet=0; 
-   /* FDD Mode */
-   mode->present = NR_Mode_Info_PR_fDD;
-   if(mode->present == NR_Mode_Info_PR_fDD)
+   int16_t statProhTmr =0;
+   
+   if(statProhTmrCfg == T_StatusProhibit_ms0)
    {
-      DU_ALLOC(mode->choice.fDD,sizeof(FDD_Info_t));
-      if(mode->choice.fDD == NULLP)
-      {
-        return RFAILED;
-      }
-      BuildULNRInforet = BuildULNRInfo(&mode->choice.fDD->uL_NRFreqInfo);
-      if(BuildULNRInforet != ROK)
+      statProhTmr = 0;
+   }
+   else if(statProhTmrCfg >= T_StatusProhibit_ms5 || statProhTmrCfg <= T_StatusProhibit_ms250)
+   {
+      /* All values of re assembly timer are at interval of 5ms.
+       * This is valid upto 250ms
+       * Hence converting the enum value to actual value by multiplying it to 5
+       */
+      statProhTmr = statProhTmrCfg * 5;
+   }
+   else
+   {
+      switch(statProhTmrCfg)
       {
-        return RFAILED;    
+         case T_StatusProhibit_ms300:
+            statProhTmr = 300;
+            break;
+         case T_StatusProhibit_ms350:
+            statProhTmr = 350;
+            break;
+         case T_StatusProhibit_ms400:
+            statProhTmr = 400;
+            break;
+         case T_StatusProhibit_ms450:
+            statProhTmr = 450;
+            break;
+         case T_StatusProhibit_ms500:
+            statProhTmr = 500;
+            break;
+         case T_StatusProhibit_ms800:
+            statProhTmr = 800;
+            break;
+         case T_StatusProhibit_ms1000:
+            statProhTmr = 1000;
+            break;
+         case T_StatusProhibit_ms1200:
+            statProhTmr = 1200;
+            break;
+         case T_StatusProhibit_ms1600:
+            statProhTmr = 1600;
+            break;
+         case T_StatusProhibit_ms2000:
+            statProhTmr = 2000;
+            break;
+         case T_StatusProhibit_ms2400:
+            statProhTmr = 2400;
+            break;
+         default:
+            DU_LOG("\nInvalid value of Status Prohibit timer %d", statProhTmrCfg);
+            statProhTmr = -1;
+           break;
       }
-      BuildDLNRInforet = BuildDLNRInfo(&mode->choice.fDD->dL_NRFreqInfo);
-      if(BuildDLNRInforet != ROK)
+   }
+   return statProhTmr; 
+}
+
+/*******************************************************************
+*
+* @brief Adding F1AP pdu to reserved pdu list
+*
+* @details
+*
+*    Function : addToReservedF1apPduList 
+*
+*    Functionality: Adding F1AP pdu to reserved pdu list.
+*     These pdu are awaiting aknowledgment from CU
+*
+* @params[in] uint8_t transId, F1AP_PDU_t *f1apMsg
+*
+* @return ROK - success
+*         RFAILED - failure
+*
+* ****************************************************************/
+
+void addToReservedF1apPduList(uint8_t transId, F1AP_PDU_t *f1apPdu)
+{
+   CmLList         *node = NULLP;
+   ReservedF1apPduInfo *pduInfo = NULLP;
+   DU_ALLOC(pduInfo, sizeof(ReservedF1apPduInfo));
+   if(pduInfo)
+   {
+      DU_ALLOC(node, sizeof(CmLList));
+      if(node)
       {
-        return RFAILED;
+         pduInfo->transId = transId;
+         pduInfo->f1apMsg = (void*) f1apPdu;
+
+         node->node = (PTR)pduInfo;
+         cmLListAdd2Tail(&duCb.reservedF1apPduList, node);
       }
    }
-   mode->choice.fDD->uL_Transmission_Bandwidth.nRSCS = \
-                                                      duCfgParam.srvdCellLst[0].duCellInfo.\
-                                                      f1Mode.mode.fdd.ulTxBw.nrScs;
-   mode->choice.fDD->uL_Transmission_Bandwidth.nRNRB = \
-                                                      duCfgParam.srvdCellLst[0].duCellInfo.\
-                                                      f1Mode.mode.fdd.ulTxBw.nrb;
-   mode->choice.fDD->dL_Transmission_Bandwidth.nRSCS = \
-                                                      duCfgParam.srvdCellLst[0].duCellInfo.\
-                                                      f1Mode.mode.fdd.dlTxBw.nrScs;
-   mode->choice.fDD->dL_Transmission_Bandwidth.nRNRB = \
-                                                      duCfgParam.srvdCellLst[0].duCellInfo.\
-                                                      f1Mode.mode.fdd.dlTxBw.nrb;
-   return ROK;
 }
+
+/*******************************************************************
+*
+* @brief searching for F1AP pdu from ReservedF1apPduList 
+*
+* @details
+*
+*    Function : searchFromReservedF1apPduList 
+*
+*    Functionality: searching for F1AP pdu information
+*
+* @params[in] uint8_t transId
+*
+* @return pointer to F1AP_PDU_t
+*
+* ****************************************************************/
+
+CmLList *searchFromReservedF1apPduList(uint8_t transId)
+{
+   CmLList         *node;
+   ReservedF1apPduInfo *f1apPdu;
+   if(duCb.reservedF1apPduList.count)
+   {
+      CM_LLIST_FIRST_NODE(&duCb.reservedF1apPduList, node);
+      while(node)
+      {
+         f1apPdu = (ReservedF1apPduInfo*)node->node;
+         if(f1apPdu->transId == transId)
+         {
+            return node;
+         }
+         node = node->next;
+      }
+   }
+   return NULL;
+}
+
+/*******************************************************************
+*
+* @brief deleting F1AP pdu information from ReservedF1apPduList
+*
+* @details
+*
+*    Function : deleteFromReservedF1apPduList 
+*
+*    Functionality: deleting pdu information from ReservedF1apPduList
+*
+* @params[in] CmLList *node 
+*
+* @return void 
+*
+* ****************************************************************/
+
+void deleteFromReservedF1apPduList(CmLList *node)
+{
+   ReservedF1apPduInfo *f1apPdu;
+
+   if(node != NULL)
+   {
+      f1apPdu = (ReservedF1apPduInfo *)node->node;
+      cmLListDelFrm(&duCb.reservedF1apPduList, node);
+      DU_FREE(f1apPdu, sizeof(ReservedF1apPduInfo));
+      DU_FREE(node, sizeof(CmLList));
+      node = NULL;
+   }
+}
+
 /*******************************************************************
  *
- * @brief Builds IE Extensions for Served PLMNs 
+ * @brief Builds Uplink Info for NR 
  *
  * @details
  *
- *    Function : BuildExtensions
+ *    Function : BuildULNRInfo
  *
- *    Functionality: Building the IE Extensions
+ *    Functionality: Building NR Uplink Info
  *
- * @params[in] struct ProtocolExtensionContainer_4624P3 *buildextend
+ * @params[in] NRFreqInfo_t *ulnrfreq
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint8_t BuildExtensions(ProtocolExtensionContainer_4624P3_t **ieExtend)
+uint8_t BuildULNRInfo(NRFreqInfo_t *ulnrfreq)
 {
-   uint8_t idx;
-   uint8_t plmnidx;
-   uint8_t extensionCnt=1;
-   uint8_t sliceId=0;
-   uint8_t sdId;
-   DU_ALLOC(*ieExtend,sizeof(ProtocolExtensionContainer_4624P3_t));
-   if((*ieExtend) == NULLP)
-   {
-      return RFAILED;
-   }
-   (*ieExtend)->list.count = extensionCnt;
-   (*ieExtend)->list.size = \
-                           extensionCnt * sizeof(ServedPLMNs_ItemExtIEs_t *);
-   DU_ALLOC((*ieExtend)->list.array,(*ieExtend)->list.size);
-   if((*ieExtend)->list.array == NULLP)
+   uint8_t idx=0;
+   ulnrfreq->nRARFCN = duCfgParam.srvdCellLst[0].duCellInfo.f1Mode.mode.\
+                      fdd.ulNrFreqInfo.nrArfcn;
+   ulnrfreq->freqBandListNr.list.count = 1;
+   ulnrfreq->freqBandListNr.list.size = sizeof(FreqBandNrItem_t *);
+   DU_ALLOC(ulnrfreq->freqBandListNr.list.array,ulnrfreq->freqBandListNr.list.size);
+   if(ulnrfreq->freqBandListNr.list.array == NULLP)
    {
       return RFAILED;
    }
-   for(plmnidx=0;plmnidx<extensionCnt;plmnidx++)
+   for(idx=0;idx<ulnrfreq->freqBandListNr.list.count;idx++)
    {
-      DU_ALLOC((*ieExtend)->list.array[plmnidx],\
-           sizeof(ServedPLMNs_ItemExtIEs_t));
-      if((*ieExtend)->list.array[plmnidx] == NULLP)
+      DU_ALLOC(ulnrfreq->freqBandListNr.list.array[idx],sizeof(FreqBandNrItem_t));
+      if(ulnrfreq->freqBandListNr.list.array[idx] == NULLP)
       {
         return RFAILED;
       }
    }
-   idx = 0;
-   (*ieExtend)->list.array[idx]->id = ProtocolIE_ID_id_TAISliceSupportList;
-   (*ieExtend)->list.array[idx]->criticality = Criticality_ignore;
-   (*ieExtend)->list.array[idx]->extensionValue.present = \
-                                                         ServedPLMNs_ItemExtIEs__extensionValue_PR_SliceSupportList;
-   (*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
-      list.count = 1;
-   (*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
-      list.size = sizeof(SliceSupportItem_t *);
-   DU_ALLOC((*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
-        list.array,sizeof(SliceSupportItem_t *));
-   if((*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
-        list.array == NULLP)
-   {
-      return RFAILED;
-   }
-   DU_ALLOC((*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
-        list.array[sliceId],sizeof(SliceSupportItem_t));
-   if((*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
-        list.array[sliceId] == NULLP) 
-   {
-      return RFAILED;
-   }
-   (*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
-      list.array[sliceId]->sNSSAI.sST.size = sizeof(uint8_t);
-   DU_ALLOC((*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList\
-        .list.array[sliceId]->sNSSAI.sST.buf,(*ieExtend)->list.array[idx]->\
-        extensionValue.choice.SliceSupportList.\
-        list.array[sliceId]->sNSSAI.sST.size);
-   if((*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList\
-        .list.array[sliceId]->sNSSAI.sST.buf == NULLP)
-   {
-      return RFAILED;
-   }
-   (*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
-      list.array[sliceId]->sNSSAI.sST.buf[0] = 3;
-   DU_ALLOC((*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
-        list.array[sliceId]->sNSSAI.sD,sizeof(OCTET_STRING_t));
-   if((*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
-        list.array[sliceId]->sNSSAI.sD == NULLP)
-   {
-      return RFAILED;
-   }
-   (*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
-      list.array[sliceId]->sNSSAI.sD->size = 3*sizeof(uint8_t);
-   DU_ALLOC((*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
-        list.array[sliceId]->sNSSAI.sD->buf,(*ieExtend)->list.array[idx]->extensionValue.choice.\
-        SliceSupportList.list.array[sliceId]->sNSSAI.sD->size);
-   if((*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
-        list.array[sliceId]->sNSSAI.sD->buf == NULLP)
-   {
-      return RFAILED;
-   }
-   sdId = 0;
-   (*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
-      list.array[sliceId]->sNSSAI.sD->buf[sdId] = 3;
-   sdId++;
-   (*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
-      list.array[sliceId]->sNSSAI.sD->buf[sdId] = 6;
-   sdId++;
-   (*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
-      list.array[sliceId]->sNSSAI.sD->buf[sdId] = 9;
+   ulnrfreq->freqBandListNr.list.array[0]->freqBandIndicatorNr = \
+                                                                duCfgParam.srvdCellLst[0].duCellInfo.f1Mode.mode.fdd.ulNrFreqInfo.\
+                                                                freqBand[0].nrFreqBand;
+   ulnrfreq->freqBandListNr.list.array[0]->supportedSULBandList.list.count = SUL_BAND_COUNT;
    return ROK;
 }
 /*******************************************************************
  *
- * @brief Builds Served PLMN 
+ * @brief Builds Downlink NR Info 
  *
  * @details
  *
- *    Function : BuildServedPlmn
- *
- *    Functionality: Building the Served PLMN
+ *    Function : BuildDLNRInfo
  *
- * @params[in] GNB_DU_Served_Cells_Item_t *srvCellItem
+ *    Functionality: Building Downlink NR Info
+ *    
+ * @params[in] NRFreqInfo_t *dlnrfreq
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint8_t  BuildServedPlmn(ServedPLMNs_List_t *srvplmn)
-{  
-   uint8_t  plmnidx;
-   uint8_t  servPlmnCnt=1;
-   uint8_t buildPlmnIdret=0;
-   uint8_t BuildExtensionsret=0;
-   srvplmn->list.count = servPlmnCnt;
-   srvplmn->list.size = \
-                       servPlmnCnt*sizeof(ServedPLMNs_Item_t *);
-   DU_ALLOC(srvplmn->list.array,srvplmn->list.size);
-   if(srvplmn->list.array == NULLP)
+uint8_t BuildDLNRInfo(NRFreqInfo_t *dlnrfreq)
+{
+   uint8_t idx=0;
+   dlnrfreq->nRARFCN = duCfgParam.srvdCellLst[0].duCellInfo.f1Mode.mode.\
+                      fdd.dlNrFreqInfo.nrArfcn;
+   dlnrfreq->freqBandListNr.list.count = 1;
+   dlnrfreq->freqBandListNr.list.size = sizeof(FreqBandNrItem_t *);
+   DU_ALLOC(dlnrfreq->freqBandListNr.list.array,dlnrfreq->freqBandListNr.list.size);
+   if(dlnrfreq->freqBandListNr.list.array == NULLP)
    {
-      return RFAILED;
+      return RFAILED;   
    }
-   for(plmnidx=0; plmnidx<servPlmnCnt; plmnidx++)
-   {   
-      DU_ALLOC(srvplmn->list.array[plmnidx],\
-           sizeof(ServedPLMNs_Item_t));
-      if(srvplmn->list.array[plmnidx] == NULLP)
+   for(idx=0;idx< dlnrfreq->freqBandListNr.list.count;idx++)
+   {
+      DU_ALLOC(dlnrfreq->freqBandListNr.list.array[idx],sizeof(FreqBandNrItem_t));
+      if(dlnrfreq->freqBandListNr.list.array[idx] == NULLP)
       {
         return RFAILED;
-      }  
-   }
-   srvplmn->list.array[0]->pLMN_Identity.size = PLMN_SIZE * sizeof(uint8_t);
-   DU_ALLOC(srvplmn->list.array[0]->pLMN_Identity.buf, srvplmn->list.array[0]->pLMN_Identity.size);
-   buildPlmnIdret = buildPlmnId(duCfgParam.srvdCellLst[0].duCellInfo.cellInfo.nrCgi.plmn,\
-        srvplmn->list.array[0]->pLMN_Identity.buf);
-   if(buildPlmnIdret!= ROK)
-   {
-      return RFAILED;
-   }
-   BuildExtensionsret = BuildExtensions(&srvplmn->list.array[0]->iE_Extensions);
-   if(BuildExtensionsret!= ROK)
-   {
-      return RFAILED;
-   }
+      }
+   }   
+   dlnrfreq->freqBandListNr.list.array[0]->freqBandIndicatorNr = \
+                                                                duCfgParam.srvdCellLst[0].duCellInfo.f1Mode.mode.fdd.dlNrFreqInfo.\
+                                                                freqBand[0].nrFreqBand;
+   dlnrfreq->freqBandListNr.list.array[0]->supportedSULBandList.list.count = SUL_BAND_COUNT;
+
    return ROK;
 }
+
 /*******************************************************************
  *
- * @brief Builds Served Cell List
+ * @brief Builds NRCell ID 
  *
  * @details
  *
- *    Function : BuildServedCellList
+ *    Function : BuildNrCellId
  *
- *    Functionality: Building Served Cell List
+ *    Functionality: Building the NR Cell ID
  *
- * @params[in] PLMNID plmn
+ * @params[in] BIT_STRING_t *nrcell
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
 
-uint8_t BuildServedCellList(GNB_DU_Served_Cells_List_t *duServedCell)
+S16 BuildNrCellId(BIT_STRING_t *nrcell)
 {
-   uint8_t  BuildNrcgiret=0;
-   uint8_t  BuildFiveGSTacret=0;
-   uint8_t  BuildServedPlmnret=0;
-   uint8_t  BuildNrModeret=0;
-   uint8_t  idx;
-   uint8_t  plmnidx;
-   uint8_t  plmnCnt=1;
-   GNB_DU_Served_Cells_Item_t *srvCellItem;
-   duServedCell->list.size = plmnCnt * sizeof(GNB_DU_Served_Cells_ItemIEs_t *);
-   duServedCell->list.count = plmnCnt;
-
-   DU_ALLOC(duServedCell->list.array, duServedCell->list.size);
-   if(duServedCell->list.array == NULLP)
-   {
-      return RFAILED;
-   }
-   for(plmnidx=0; plmnidx<plmnCnt; plmnidx++)
-   {
-      DU_ALLOC(duServedCell->list.array[plmnidx],\
-           sizeof(GNB_DU_Served_Cells_ItemIEs_t));
-      if(duServedCell->list.array[plmnidx] == NULLP)
-      {
-        return RFAILED;
-      }
-   }
-   idx = 0;
-   duServedCell->list.array[idx]->id = ProtocolIE_ID_id_GNB_DU_Served_Cells_Item;
-   duServedCell->list.array[idx]->criticality = Criticality_reject;
-   duServedCell->list.array[idx]->value.present = \
-                                                 GNB_DU_Served_Cells_ItemIEs__value_PR_GNB_DU_Served_Cells_Item;
-   srvCellItem = \
-                &duServedCell->list.array[idx]->value.choice.GNB_DU_Served_Cells_Item;
-   /*nRCGI*/
-   BuildNrcgiret = BuildNrcgi(&srvCellItem->served_Cell_Information.nRCGI);
-   if(BuildNrcgiret != ROK)
-   {
-      return RFAILED;
-   }
-   /*nRPCI*/
-   srvCellItem->served_Cell_Information.nRPCI = \
-                                               duCfgParam.srvdCellLst[0].duCellInfo.cellInfo.nrPci;
-
-   /*fiveGS_TAC*/
-   BuildFiveGSTacret = BuildFiveGSTac(&srvCellItem->served_Cell_Information);
-   if(BuildFiveGSTacret != ROK)
-   {
-      return RFAILED;
-   }
-   /*Served PLMNs*/
-   BuildServedPlmnret = BuildServedPlmn(&srvCellItem->served_Cell_Information.servedPLMNs);
-   if(BuildServedPlmnret !=ROK)
-   {
-      return RFAILED;
-   }
-   /*nR Mode Info with FDD*/
-   BuildNrModeret = BuildNrMode(&srvCellItem->served_Cell_Information.nR_Mode_Info);
-   if(BuildNrModeret != ROK)
-   {
-      return RFAILED;
-   }
-   /*Measurement timing Config*/
-   srvCellItem->served_Cell_Information.measurementTimingConfiguration.\
-      size = sizeof(uint8_t);
-   DU_ALLOC(srvCellItem->served_Cell_Information.\
-        measurementTimingConfiguration.buf,srvCellItem->served_Cell_Information.measurementTimingConfiguration.size);
-   if(srvCellItem->served_Cell_Information.\
-        measurementTimingConfiguration.buf == NULLP)
-   {
-      return RFAILED;
-   }
-   srvCellItem->served_Cell_Information.measurementTimingConfiguration.buf[0] = \
-                                                                               duCfgParam.srvdCellLst[0].duCellInfo.measTimeCfg;
-
-   /* GNB DU System Information */
-   DU_ALLOC(srvCellItem->gNB_DU_System_Information,
-        sizeof(GNB_DU_System_Information_t));
-   if(!srvCellItem->gNB_DU_System_Information)
-   {
-      return RFAILED;
-   }
-   /* MIB */
-   srvCellItem->gNB_DU_System_Information->mIB_message.size =\
-                                                            strlen(( char *)duCfgParam.srvdCellLst[0].duSysInfo.mibMsg);
-   DU_ALLOC(srvCellItem->gNB_DU_System_Information->mIB_message.buf,
-        srvCellItem->gNB_DU_System_Information->mIB_message.size);
-   if(!srvCellItem->gNB_DU_System_Information->mIB_message.buf)
-   {
-      return RFAILED;
-   }
-   strcpy((char *)srvCellItem->gNB_DU_System_Information->mIB_message.buf,
-        (char *)duCfgParam.srvdCellLst[0].duSysInfo.mibMsg);
-
-   /* SIB1 */
-   srvCellItem->gNB_DU_System_Information->sIB1_message.size =\
-                                                             duCfgParam.srvdCellLst[0].duSysInfo.sib1Len;
+   memset(nrcell->buf, 0, nrcell->size);
+   nrcell->buf[4]   = 16; 
+   nrcell->bits_unused = 4;
+   return ROK;
+}
 
-   DU_ALLOC(srvCellItem->gNB_DU_System_Information->sIB1_message.buf,
-        srvCellItem->gNB_DU_System_Information->sIB1_message.size);
-   if(!srvCellItem->gNB_DU_System_Information->sIB1_message.buf)
-   {
-      return RFAILED;
-   }
-   for(int x=0; x<srvCellItem->gNB_DU_System_Information->sIB1_message.size; x++)
-   {
-      srvCellItem->gNB_DU_System_Information->sIB1_message.buf[x]=\
-                                                                 duCfgParam.srvdCellLst[0].duSysInfo.sib1Msg[x];
-   }
-   return ROK; 
-}                                                                                                                  
 /*******************************************************************
  *
- * @brief Builds RRC Version 
+ * @brief Builds Nrcgi 
  *
  * @details
  *
- *    Function : BuildRrcVer
+ *    Function : BuildNrcgi
  *
- *    Functionality: Building RRC Version
+ *    Functionality: Building the PLMN ID and NR Cell id
  *
- * @params[in] int idx,int elementCnt,RRC_Version_t *rrcver
+ * @params[in] NRCGI_t *nrcgi
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint8_t BuildRrcVer(RRC_Version_t *rrcVer)
+uint8_t BuildNrcgi(NRCGI_t *nrcgi)
 {
-   uint8_t rrcExt;
-   uint8_t rrcLatest;
-   rrcVer->latest_RRC_Version.size = sizeof(uint8_t);
-   DU_ALLOC(rrcVer->latest_RRC_Version.buf,sizeof(uint8_t));
-   if(rrcVer->latest_RRC_Version.buf == NULLP)
-   {
-      return RFAILED;
-   }
-   rrcVer->latest_RRC_Version.buf[0] = 0;
-   rrcVer->latest_RRC_Version.bits_unused = 5;
-   DU_ALLOC(rrcVer->iE_Extensions,sizeof(ProtocolExtensionContainer_4624P81_t));
-   if(rrcVer->iE_Extensions == NULLP)
-   {  
-      return RFAILED;
-   }
-   rrcVer->iE_Extensions->list.count = 1;
-   rrcVer->iE_Extensions->list.size = sizeof(RRC_Version_ExtIEs_t *);
-   DU_ALLOC(rrcVer->iE_Extensions->list.array,rrcVer->iE_Extensions->list.size);
-   if(rrcVer->iE_Extensions->list.array == NULLP)
+   uint8_t ret;
+   uint8_t byteSize = 5;
+   /* Allocate Buffer Memory */
+   nrcgi->pLMN_Identity.size = PLMN_SIZE * sizeof(uint8_t);
+   DU_ALLOC(nrcgi->pLMN_Identity.buf, nrcgi->pLMN_Identity.size);
+   if(nrcgi->pLMN_Identity.buf == NULLP)
    {
       return RFAILED;
    }
-   rrcExt = 0;
-   DU_ALLOC(rrcVer->iE_Extensions->list.array[0],\
-        sizeof(RRC_Version_ExtIEs_t));
-   if(rrcVer->iE_Extensions->list.array[0] == NULLP)
+   ret = buildPlmnId(duCfgParam.srvdCellLst[0].duCellInfo.cellInfo.nrCgi.plmn,\
+        nrcgi->pLMN_Identity.buf); // Building PLMN function
+   if(ret != ROK)
    {
       return RFAILED;
    }
-   rrcVer->iE_Extensions->list.array[rrcExt]->id = \
-                                                  ProtocolIE_ID_id_latest_RRC_Version_Enhanced;
-   rrcVer->iE_Extensions->list.array[rrcExt]->criticality = Criticality_reject;
-   rrcVer->iE_Extensions->list.array[rrcExt]->extensionValue.present =\
-                                                                     RRC_Version_ExtIEs__extensionValue_PR_Latest_RRC_Version_Enhanced;
-   rrcVer->iE_Extensions->list.array[rrcExt]->extensionValue.choice\
-      .Latest_RRC_Version_Enhanced.size = 3*sizeof(uint8_t);
-   DU_ALLOC(rrcVer->iE_Extensions->list.array[rrcExt]->extensionValue.choice\
-        .Latest_RRC_Version_Enhanced.buf,rrcVer->iE_Extensions->list.\
-        array[rrcExt]->extensionValue.choice.Latest_RRC_Version_Enhanced.size);
-   if(rrcVer->iE_Extensions->list.array[rrcExt]->extensionValue.choice\
-        .Latest_RRC_Version_Enhanced.buf == NULLP)
+   /*nrCellIdentity*/
+   nrcgi->nRCellIdentity.size = byteSize * sizeof(uint8_t);
+   DU_ALLOC(nrcgi->nRCellIdentity.buf, nrcgi->nRCellIdentity.size); 
+   if(nrcgi->nRCellIdentity.buf == NULLP)
    {
       return RFAILED;
    }
-   rrcLatest = 0;
-   rrcVer->iE_Extensions->list.array[rrcExt]->extensionValue.choice.\
-      Latest_RRC_Version_Enhanced.buf[rrcLatest] = 15;
-   rrcLatest++;
-   rrcVer->iE_Extensions->list.array[rrcExt]->extensionValue.choice.\
-      Latest_RRC_Version_Enhanced.buf[rrcLatest] = 5;
-   rrcLatest++;
-   rrcVer->iE_Extensions->list.array[rrcExt]->extensionValue.choice.\
-      Latest_RRC_Version_Enhanced.buf[rrcLatest] = 0;
+   BuildNrCellId(&nrcgi->nRCellIdentity);
+
    return ROK;
 }
 /*******************************************************************
  *
- * @brief Sends F1 msg over SCTP
+ * @brief Builds FiveGStac 
  *
  * @details
  *
- *    Function : SendF1APMsg
+ *    Function : BuildFiveGSTac
  *
- *    Functionality: Sends F1 msg over SCTP
+ *    Functionality: Building the FiveGSTac
  *
- * @params[in] Region region
- *             Pool pool
+ * @params[in] OCTET_STRING_t *fivegsTac
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint8_t SendF1APMsg(Region region, Pool pool)
+uint8_t BuildFiveGSTac(Served_Cell_Information_t *servcell)
 {
-   Buffer *mBuf = NULLP;
-  
-   if(ODU_GET_MSG_BUF(region, pool, &mBuf) == ROK)
+   DU_ALLOC(servcell->fiveGS_TAC,sizeof(FiveGS_TAC_t));
+   if(servcell->fiveGS_TAC == NULLP)
    {
-      if(ODU_ADD_POST_MSG_MULT((Data *)encBuf, encBufSize, mBuf) == ROK)
-      {
-           ODU_PRINT_MSG(mBuf, 0,0);
-
-           if(sctpSend(mBuf, F1_INTERFACE) != ROK)
-           {
-              DU_LOG("\nERROR  -->  F1AP : SCTP Send failed");
-              ODU_PUT_MSG_BUF(mBuf);
-              return RFAILED;
-           }
-      }
-      else
-      {
-        DU_LOG("\nERROR  -->  F1AP : ODU_ADD_POST_MSG_MULT failed");
-        ODU_PUT_MSG_BUF(mBuf);
-        return RFAILED;
-      }
-      ODU_PUT_MSG_BUF(mBuf);
+      return RFAILED;
    }
-   else
+   servcell->fiveGS_TAC->size = 3 * sizeof(uint8_t);
+   DU_ALLOC(servcell->fiveGS_TAC->buf,\
+        sizeof(servcell->fiveGS_TAC->size));
+   if(servcell->fiveGS_TAC->buf == NULLP)
    {
-      DU_LOG("\nERROR  -->  F1AP : Failed to allocate memory");
       return RFAILED;
    }
-   return ROK; 
-} /* SendF1APMsg */
-
+   servcell->fiveGS_TAC->buf[0] = 0;
+   servcell->fiveGS_TAC->buf[1] = 0;
+   servcell->fiveGS_TAC->buf[2] = duCfgParam.srvdCellLst[0].duCellInfo.tac;
+   return ROK;  
+}
 /*******************************************************************
  *
- * @brief  deallocating the memory of function BuildAndSendF1SetupReq()
+ * @brief Builds NR Mode 
  *
  * @details
  *
- *    Function :  FreeRrcVer
+ *    Function : BuildNrMode
  *
- *    Functionality: deallocating the memory of function BuildRrcVer
+ *    Functionality: Building the NR Mode
  *
- * @params[in] RRC_Version_t *rrcVer
- * 
- * @return void
+ * @params[in] NR_Mode_Info_t *fdd
+ * @return ROK     - success
+ *         RFAILED - failure
  *
- *****************************************************************/
-void FreeRrcVer(RRC_Version_t *rrcVer)
+ * ****************************************************************/
+uint8_t BuildNrMode(NR_Mode_Info_t *mode)
 {
-   if(rrcVer->latest_RRC_Version.buf != NULLP)
+   uint8_t BuildDLNRInforet=0;
+   uint8_t BuildULNRInforet=0; 
+   /* FDD Mode */
+   mode->present = NR_Mode_Info_PR_fDD;
+   if(mode->present == NR_Mode_Info_PR_fDD)
    {
-      if(rrcVer->iE_Extensions != NULLP)
+      DU_ALLOC(mode->choice.fDD,sizeof(FDD_Info_t));
+      if(mode->choice.fDD == NULLP)
       {
-        if(rrcVer->iE_Extensions->list.array != NULLP)
-        {
-           if(rrcVer->iE_Extensions->list.array[0] != NULLP)
-           {
-              if(rrcVer->iE_Extensions->list.array[0]->extensionValue.choice.Latest_RRC_Version_Enhanced.buf
-                    != NULLP)
-              {
-                 DU_FREE(rrcVer->iE_Extensions->list.array[0]->extensionValue.choice\
-                       .Latest_RRC_Version_Enhanced.buf,rrcVer->iE_Extensions->list.\
-                       array[0]->extensionValue.choice.Latest_RRC_Version_Enhanced.size);
-              }
-              DU_FREE(rrcVer->iE_Extensions->list.array[0],sizeof(RRC_Version_ExtIEs_t));
-           }
-           DU_FREE(rrcVer->iE_Extensions->list.array,sizeof(RRC_Version_ExtIEs_t*));
-        }
-        DU_FREE(rrcVer->iE_Extensions,sizeof(ProtocolExtensionContainer_4624P81_t));
+        return RFAILED;
+      }
+      BuildULNRInforet = BuildULNRInfo(&mode->choice.fDD->uL_NRFreqInfo);
+      if(BuildULNRInforet != ROK)
+      {
+        return RFAILED;    
+      }
+      BuildDLNRInforet = BuildDLNRInfo(&mode->choice.fDD->dL_NRFreqInfo);
+      if(BuildDLNRInforet != ROK)
+      {
+        return RFAILED;
       }
-      DU_FREE(rrcVer->latest_RRC_Version.buf,rrcVer->latest_RRC_Version.size);
    }
+   mode->choice.fDD->uL_Transmission_Bandwidth.nRSCS = \
+                                                      duCfgParam.srvdCellLst[0].duCellInfo.\
+                                                      f1Mode.mode.fdd.ulTxBw.nrScs;
+   mode->choice.fDD->uL_Transmission_Bandwidth.nRNRB = \
+                                                      duCfgParam.srvdCellLst[0].duCellInfo.\
+                                                      f1Mode.mode.fdd.ulTxBw.nrb;
+   mode->choice.fDD->dL_Transmission_Bandwidth.nRSCS = \
+                                                      duCfgParam.srvdCellLst[0].duCellInfo.\
+                                                      f1Mode.mode.fdd.dlTxBw.nrScs;
+   mode->choice.fDD->dL_Transmission_Bandwidth.nRNRB = \
+                                                      duCfgParam.srvdCellLst[0].duCellInfo.\
+                                                      f1Mode.mode.fdd.dlTxBw.nrb;
+   return ROK;
 }
 /*******************************************************************
  *
- * @brief  deallocating the memory of function BuildAndSendF1SetupReq()
+ * @brief Builds IE Extensions for Served PLMNs 
  *
  * @details
  *
- *    Function :  FreeServedCellList
- *
- *    Functionality:  deallocating the memory of function BuildServedCellList
-
+ *    Function : BuildExtensions
  *
- * @params[in] GNB_DU_Served_Cells_List_t *duServedCell
+ *    Functionality: Building the IE Extensions
  *
- * @return void
+ * @params[in] struct ProtocolExtensionContainer_4624P3 *buildextend
+ * @return ROK     - success
+ *         RFAILED - failure
  *
  * ****************************************************************/
-void FreeServedCellList( GNB_DU_Served_Cells_List_t *duServedCell)
+uint8_t BuildExtensions(ProtocolExtensionContainer_4624P3_t **ieExtend)
 {
-   uint8_t   plmnCnt=1;
-   uint8_t  servId=0;
+   uint8_t idx;
+   uint8_t plmnidx;
+   uint8_t extensionCnt=1;
    uint8_t sliceId=0;
-   uint8_t  ieId=0;
-   uint8_t   extensionCnt=1;
-   uint8_t plmnidx=0;
-   GNB_DU_Served_Cells_Item_t *srvCellItem= &duServedCell->list.array[0]->value.choice.GNB_DU_Served_Cells_Item;
-   if(duServedCell->list.array!=NULLP)
+   uint8_t sdId;
+   DU_ALLOC(*ieExtend,sizeof(ProtocolExtensionContainer_4624P3_t));
+   if((*ieExtend) == NULLP)
    {
-      if(duServedCell->list.array[0]!=NULLP)
-      {
-        if(srvCellItem->served_Cell_Information.nRCGI.pLMN_Identity.buf!=NULLP)
-        {
-           if(srvCellItem->served_Cell_Information.nRCGI.nRCellIdentity.buf !=NULLP)
-           {
-              if(srvCellItem->served_Cell_Information.fiveGS_TAC!=NULLP)
-              {
-                 if(srvCellItem->served_Cell_Information.fiveGS_TAC->buf!=NULLP)
-                 {
-                    if(srvCellItem->served_Cell_Information.servedPLMNs.list.array!=NULLP)
-                    {
-                       if(srvCellItem->served_Cell_Information.servedPLMNs.list.array[0]!=NULLP)
-                       {
-                          if(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->pLMN_Identity.buf!=NULLP)
-                          {
-                             if(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->iE_Extensions!=NULLP)
-                             {
-                                if(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->iE_Extensions->list.array!=NULLP)
-                                {
-                                   if(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->iE_Extensions->list.array[0]!=NULLP)
-                                   {
-                                      if(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->iE_Extensions->list.array[0]->\
-                                            extensionValue.choice.SliceSupportList.list.array!=NULLP)
-                                      {
-                                         if(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->iE_Extensions->list.array[0]->\
-                                               extensionValue.choice.SliceSupportList.list.array[sliceId]!= NULLP)
-                                         {
-                                            if(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->iE_Extensions->list.array[0]->\
-                                                  extensionValue.choice.SliceSupportList.list.array[sliceId]->sNSSAI.sST.buf!=NULLP)
-                                            {
-                                               if(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->iE_Extensions->list.array[0]->\
-                                                     extensionValue.choice.SliceSupportList.list.array[sliceId]->sNSSAI.sD!=NULLP)
-                                               {
-                                                  if(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->iE_Extensions->\
-                                                        list.array[0]->extensionValue.choice.SliceSupportList.list.array[sliceId]->sNSSAI.sD->buf!=NULLP)
-                                                  {
-                                                     if(srvCellItem->served_Cell_Information.nR_Mode_Info.choice.fDD!=NULLP)
-                                                     {
-                                                        if(srvCellItem->served_Cell_Information.nR_Mode_Info.choice.fDD->uL_NRFreqInfo.\
-                                                              freqBandListNr.list.array!=NULLP)
-                                                        {
-                                                           if(srvCellItem->served_Cell_Information.nR_Mode_Info.choice.fDD->uL_NRFreqInfo.\
-                                                                 freqBandListNr.list.array[0]!=NULLP)
-                                                           {
-                                                              if(srvCellItem->served_Cell_Information.nR_Mode_Info.choice.fDD->dL_NRFreqInfo.\
-                                                                    freqBandListNr.list.array)
-                                                              {
-                                                                 if(srvCellItem->served_Cell_Information.nR_Mode_Info.choice.fDD->dL_NRFreqInfo.\
-                                                                       freqBandListNr.list.array[0]!=NULLP)
-                                                                 {
-                                                                    if(srvCellItem->served_Cell_Information.measurementTimingConfiguration.buf!=NULLP)
-                                                                    {
-                                                                       if(!srvCellItem->gNB_DU_System_Information)
-                                                                       {
-                                                                          if(srvCellItem->gNB_DU_System_Information->mIB_message.buf!=NULLP)
-                                                                          {
-                                                                             if(srvCellItem->gNB_DU_System_Information->sIB1_message.buf!=NULLP)
-                                                                             { 
-                                                                                DU_FREE(srvCellItem->gNB_DU_System_Information->sIB1_message.buf,\
-                                                                                      srvCellItem->gNB_DU_System_Information->sIB1_message.size);
-                                                                                DU_FREE(duCfgParam.srvdCellLst[0].duSysInfo.sib1Msg,\
-                                                                                      srvCellItem->gNB_DU_System_Information->sIB1_message.size);
-                                                                             }
-                                                                             DU_FREE(srvCellItem->gNB_DU_System_Information->mIB_message.buf,\
-                                                                                   srvCellItem->gNB_DU_System_Information->mIB_message.size);
-                                                                             DU_FREE(duCfgParam.srvdCellLst[0].duSysInfo.mibMsg,\
-                                                                                   strlen((char*)duCfgParam.srvdCellLst[0].duSysInfo.mibMsg));
-                                                                          }
-                                                                          DU_FREE(srvCellItem->gNB_DU_System_Information,sizeof(GNB_DU_System_Information_t));
-                                                                       }
-                                                                       DU_FREE(srvCellItem->served_Cell_Information.measurementTimingConfiguration.buf,\
-                                                                             srvCellItem->served_Cell_Information.measurementTimingConfiguration.size);
-                                                                    }
-                                                                    DU_FREE(srvCellItem->served_Cell_Information.nR_Mode_Info.choice.fDD->dL_NRFreqInfo.\
-                                                                          freqBandListNr.list.array[0],sizeof(FreqBandNrItem_t));
-                                                                 }
-                                                                 DU_FREE(srvCellItem->served_Cell_Information.nR_Mode_Info.choice.fDD->dL_NRFreqInfo.\
-                                                                       freqBandListNr.list.array,sizeof(FreqBandNrItem_t *));
-                                                              }
-                                                              DU_FREE(srvCellItem->served_Cell_Information.nR_Mode_Info.choice.fDD->uL_NRFreqInfo.freqBandListNr.\
-                                                                    list.array[0],sizeof(FreqBandNrItem_t));
-                                                           }
-                                                           DU_FREE(srvCellItem->served_Cell_Information.nR_Mode_Info.choice.fDD->uL_NRFreqInfo.freqBandListNr.\
-                                                                 list.array,sizeof(FreqBandNrItem_t*));
-                                                        }
-                                                        DU_FREE(srvCellItem->served_Cell_Information.nR_Mode_Info.choice.fDD,sizeof(FDD_Info_t));
-                                                     }
-                                                     DU_FREE(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->\
-                                                           iE_Extensions->list.array[ieId]->extensionValue.choice.SliceSupportList.list.array[sliceId]->\
-                                                           sNSSAI.sD->buf,srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->iE_Extensions->
-                                                           list.array[ieId]->extensionValue.choice.SliceSupportList.list.array[sliceId]->sNSSAI.sD->size);
-                                                  }
-                                                  DU_FREE(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->\
-                                                        iE_Extensions->list.array[ieId]->extensionValue.choice.SliceSupportList.\
-                                                        list.array[sliceId]->sNSSAI.sD,sizeof(OCTET_STRING_t));
-                                               }
-                                               DU_FREE(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->\
-                                                     iE_Extensions->list.array[ieId]->extensionValue.choice.SliceSupportList.list.array[sliceId]->\
-                                                     sNSSAI.sST.buf,sizeof(uint8_t));
-                                            }
-                                            DU_FREE(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->iE_Extensions->list.array[0]->\
-                                                  extensionValue.choice.SliceSupportList.list.array[sliceId],sizeof(SliceSupportItem_t));
-                                         }
-                                         DU_FREE(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->iE_Extensions->list.array[0]->\
-                                               extensionValue.choice.SliceSupportList.list.array,sizeof(SliceSupportItem_t*));
-                                      }
-                                      DU_FREE(srvCellItem->served_Cell_Information.servedPLMNs.list.\
-                                            array[servId]->iE_Extensions->list.array[plmnidx],sizeof(ServedPLMNs_ItemExtIEs_t));
-                                   }
-                                   DU_FREE(srvCellItem->served_Cell_Information.servedPLMNs.list.\
-                                         array[servId]->iE_Extensions->list.array,\
-                                         extensionCnt*sizeof(ServedPLMNs_ItemExtIEs_t*));
-                                }
-                                DU_FREE(srvCellItem->served_Cell_Information.servedPLMNs.list.\
-                                      array[servId]->iE_Extensions,sizeof(ProtocolExtensionContainer_4624P3_t));
-                             }
-                             DU_FREE(srvCellItem->served_Cell_Information.servedPLMNs.list.\
-                                   array[servId]->pLMN_Identity.buf,srvCellItem->served_Cell_Information.\
-                                   servedPLMNs.list.array[servId]->pLMN_Identity.size
-                                   * sizeof(uint8_t));
-                          }
-                          DU_FREE(srvCellItem->served_Cell_Information.servedPLMNs.list.array[plmnidx],\
-                                sizeof(ServedPLMNs_Item_t *));
-                       }
-                       DU_FREE(srvCellItem->served_Cell_Information.servedPLMNs.list.array,\
-                             sizeof(ServedPLMNs_Item_t *));
-                    }
-                    DU_FREE(srvCellItem->served_Cell_Information.fiveGS_TAC->buf,\
-                          sizeof(srvCellItem->served_Cell_Information.fiveGS_TAC->size));
-                 }
-                 DU_FREE(srvCellItem->served_Cell_Information.fiveGS_TAC,sizeof(FiveGS_TAC_t));
-              }
-              DU_FREE(srvCellItem->served_Cell_Information.nRCGI.nRCellIdentity.buf,\
-                    srvCellItem->served_Cell_Information.nRCGI.nRCellIdentity.size *
-                    sizeof(uint8_t));
-           }
-           DU_FREE(srvCellItem->served_Cell_Information.nRCGI.pLMN_Identity.buf,\
-                 srvCellItem->served_Cell_Information.nRCGI.pLMN_Identity.size *
-                 sizeof(uint8_t));
-        }
-        DU_FREE(duServedCell->list.array[plmnidx],sizeof(GNB_DU_Served_Cells_ItemIEs_t));
-      }
-      DU_FREE(duServedCell->list.array,plmnCnt*sizeof(GNB_DU_Served_Cells_ItemIEs_t*));
+      return RFAILED;
    }
-}
-/*******************************************************************
- *
- * @brief  deallocating the memory of function BuildAndSendF1SetupReq()
- *
- * @details
- *
- *    Function :  FreeF1SetupReq
- *
- *    Functionality:  deallocating the memory of function BuildAndSendF1SetupReq
- *
- * @params[in] F1AP_PDU_t *f1apMsg
- *
- * @return void
- *
- * ****************************************************************/
-void FreeF1SetupReq(F1AP_PDU_t *f1apMsg)
-{
-   uint8_t ieIdx, ieIdx2;
-   F1SetupRequest_t *f1SetupReq=NULLP;
-
-   if(f1apMsg != NULLP)
+   (*ieExtend)->list.count = extensionCnt;
+   (*ieExtend)->list.size = \
+                           extensionCnt * sizeof(ServedPLMNs_ItemExtIEs_t *);
+   DU_ALLOC((*ieExtend)->list.array,(*ieExtend)->list.size);
+   if((*ieExtend)->list.array == NULLP)
    {
-      if(f1apMsg->choice.initiatingMessage != NULLP)
+      return RFAILED;
+   }
+   for(plmnidx=0;plmnidx<extensionCnt;plmnidx++)
+   {
+      DU_ALLOC((*ieExtend)->list.array[plmnidx],\
+           sizeof(ServedPLMNs_ItemExtIEs_t));
+      if((*ieExtend)->list.array[plmnidx] == NULLP)
       {
-        f1SetupReq = &f1apMsg->choice.initiatingMessage->value.choice.F1SetupRequest;
-        if(f1SetupReq->protocolIEs.list.array != NULLP)
-        {
-           for(ieIdx = 0; ieIdx < f1SetupReq->protocolIEs.list.count; ieIdx++)
-           {
-              if(f1SetupReq->protocolIEs.list.array[ieIdx] != NULLP)
-              {
-                 switch(f1SetupReq->protocolIEs.list.array[ieIdx]->id)
-                 {
-                    case ProtocolIE_ID_id_TransactionID:
-                       break;
-                    case ProtocolIE_ID_id_gNB_DU_ID:
-                       DU_FREE(f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.buf,\
-                             f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.size);
-                       break;
-                    case ProtocolIE_ID_id_gNB_DU_Name:
-                       DU_FREE(f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_Name.buf,\
-                             strlen((char *)duCfgParam.duName));
-                       break;
-                    case ProtocolIE_ID_id_gNB_DU_Served_Cells_List:
-                       FreeServedCellList(&f1SetupReq->protocolIEs.list.\
-                             array[ieIdx]->value.choice.GNB_DU_Served_Cells_List);
-                       break;
-                    case ProtocolIE_ID_id_GNB_DU_RRC_Version:
-                       FreeRrcVer(&f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.RRC_Version);
-                       break;
-                    default:
-                       DU_LOG("\nERROR  -->  Invalid Event Type %ld", f1SetupReq->protocolIEs.list.array[ieIdx]->id);
-                       break;
-                 }
-              }
-              break;
-           }
-           for(ieIdx2=0; ieIdx2< ieIdx; ieIdx2++)
-           {
-              DU_FREE(f1SetupReq->protocolIEs.list.array[ieIdx2],sizeof(F1SetupRequestIEs_t));
-           }
-           DU_FREE(f1SetupReq->protocolIEs.list.array,\
-                 f1SetupReq->protocolIEs.list.size);
-        }
-        DU_FREE(f1apMsg->choice.initiatingMessage, sizeof(InitiatingMessage_t));
+        return RFAILED;
       }
-      DU_FREE(f1apMsg, sizeof(F1AP_PDU_t));
    }
+   idx = 0;
+   (*ieExtend)->list.array[idx]->id = ProtocolIE_ID_id_TAISliceSupportList;
+   (*ieExtend)->list.array[idx]->criticality = Criticality_ignore;
+   (*ieExtend)->list.array[idx]->extensionValue.present = \
+                                                         ServedPLMNs_ItemExtIEs__extensionValue_PR_SliceSupportList;
+   (*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
+      list.count = 1;
+   (*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
+      list.size = sizeof(SliceSupportItem_t *);
+   DU_ALLOC((*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
+        list.array,sizeof(SliceSupportItem_t *));
+   if((*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
+        list.array == NULLP)
+   {
+      return RFAILED;
+   }
+   DU_ALLOC((*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
+        list.array[sliceId],sizeof(SliceSupportItem_t));
+   if((*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
+        list.array[sliceId] == NULLP) 
+   {
+      return RFAILED;
+   }
+   (*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
+      list.array[sliceId]->sNSSAI.sST.size = sizeof(uint8_t);
+   DU_ALLOC((*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList\
+        .list.array[sliceId]->sNSSAI.sST.buf,(*ieExtend)->list.array[idx]->\
+        extensionValue.choice.SliceSupportList.\
+        list.array[sliceId]->sNSSAI.sST.size);
+   if((*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList\
+        .list.array[sliceId]->sNSSAI.sST.buf == NULLP)
+   {
+      return RFAILED;
+   }
+   (*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
+      list.array[sliceId]->sNSSAI.sST.buf[0] = 3;
+   DU_ALLOC((*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
+        list.array[sliceId]->sNSSAI.sD,sizeof(OCTET_STRING_t));
+   if((*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
+        list.array[sliceId]->sNSSAI.sD == NULLP)
+   {
+      return RFAILED;
+   }
+   (*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
+      list.array[sliceId]->sNSSAI.sD->size = 3*sizeof(uint8_t);
+   DU_ALLOC((*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
+        list.array[sliceId]->sNSSAI.sD->buf,(*ieExtend)->list.array[idx]->extensionValue.choice.\
+        SliceSupportList.list.array[sliceId]->sNSSAI.sD->size);
+   if((*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
+        list.array[sliceId]->sNSSAI.sD->buf == NULLP)
+   {
+      return RFAILED;
+   }
+   sdId = 0;
+   (*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
+      list.array[sliceId]->sNSSAI.sD->buf[sdId] = 3;
+   sdId++;
+   (*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
+      list.array[sliceId]->sNSSAI.sD->buf[sdId] = 6;
+   sdId++;
+   (*ieExtend)->list.array[idx]->extensionValue.choice.SliceSupportList.\
+      list.array[sliceId]->sNSSAI.sD->buf[sdId] = 9;
+   return ROK;
 }
 /*******************************************************************
  *
- * @brief Builds and Send the F1SetupRequest
+ * @brief Builds Served PLMN 
  *
  * @details
  *
- *    Function : BuildAndSendF1SetupReq
+ *    Function : BuildServedPlmn
  *
- * Functionality:Fills the F1SetupRequest
+ *    Functionality: Building the Served PLMN
  *
+ * @params[in] GNB_DU_Served_Cells_Item_t *srvCellItem
  * @return ROK     - success
  *         RFAILED - failure
  *
- ******************************************************************/
-uint8_t BuildAndSendF1SetupReq()
-{
-   uint8_t   ret, ieIdx, elementCnt;
-   F1AP_PDU_t                 *f1apMsg = NULLP;
-   F1SetupRequest_t           *f1SetupReq=NULLP;
-   GNB_DU_Served_Cells_List_t *duServedCell=NULLP;
-   RRC_Version_t              *rrcVer=NULLP;
-   asn_enc_rval_t             encRetVal;        /* Encoder return value */
-   ret= RFAILED;
-
-   DU_LOG("\nINFO   -->  F1AP : Building F1 Setup Request\n");
-   do
+ * ****************************************************************/
+uint8_t  BuildServedPlmn(ServedPLMNs_List_t *srvplmn)
+{  
+   uint8_t  plmnidx;
+   uint8_t  servPlmnCnt=1;
+   uint8_t buildPlmnIdret=0;
+   uint8_t BuildExtensionsret=0;
+   srvplmn->list.count = servPlmnCnt;
+   srvplmn->list.size = \
+                       servPlmnCnt*sizeof(ServedPLMNs_Item_t *);
+   DU_ALLOC(srvplmn->list.array,srvplmn->list.size);
+   if(srvplmn->list.array == NULLP)
    {
-      DU_ALLOC(f1apMsg, sizeof(F1AP_PDU_t));
-      if(f1apMsg == NULLP)
-      {
-        break;
-      }
-      f1apMsg->present = F1AP_PDU_PR_initiatingMessage;
-      DU_ALLOC(f1apMsg->choice.initiatingMessage, sizeof(InitiatingMessage_t));
-      if(f1apMsg->choice.initiatingMessage == NULLP)
+      return RFAILED;
+   }
+   for(plmnidx=0; plmnidx<servPlmnCnt; plmnidx++)
+   {   
+      DU_ALLOC(srvplmn->list.array[plmnidx],\
+           sizeof(ServedPLMNs_Item_t));
+      if(srvplmn->list.array[plmnidx] == NULLP)
       {
-        break;
-      }
-      f1apMsg->choice.initiatingMessage->procedureCode = ProcedureCode_id_F1Setup;
-      f1apMsg->choice.initiatingMessage->criticality = Criticality_reject;
-      f1apMsg->choice.initiatingMessage->value.present = \
-                                                        InitiatingMessage__value_PR_F1SetupRequest;
-
-      f1SetupReq = &f1apMsg->choice.initiatingMessage->value.choice.F1SetupRequest;
-
-      elementCnt = (duCfgParam.duName != NULL) ? 5 : 4;
+        return RFAILED;
+      }  
+   }
+   srvplmn->list.array[0]->pLMN_Identity.size = PLMN_SIZE * sizeof(uint8_t);
+   DU_ALLOC(srvplmn->list.array[0]->pLMN_Identity.buf, srvplmn->list.array[0]->pLMN_Identity.size);
+   buildPlmnIdret = buildPlmnId(duCfgParam.srvdCellLst[0].duCellInfo.cellInfo.nrCgi.plmn,\
+        srvplmn->list.array[0]->pLMN_Identity.buf);
+   if(buildPlmnIdret!= ROK)
+   {
+      return RFAILED;
+   }
+   BuildExtensionsret = BuildExtensions(&srvplmn->list.array[0]->iE_Extensions);
+   if(BuildExtensionsret!= ROK)
+   {
+      return RFAILED;
+   }
+   return ROK;
+}
+/*******************************************************************
+ *
+ * @brief Builds Served Cell List
+ *
+ * @details
+ *
+ *    Function : BuildServedCellList
+ *
+ *    Functionality: Building Served Cell List
+ *
+ * @params[in] PLMNID plmn
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
 
-      f1SetupReq->protocolIEs.list.count = elementCnt;
-      f1SetupReq->protocolIEs.list.size = elementCnt * sizeof(F1SetupRequestIEs_t );
+uint8_t BuildServedCellList(GNB_DU_Served_Cells_List_t *duServedCell)
+{
+   uint8_t  BuildNrcgiret=0;
+   uint8_t  BuildFiveGSTacret=0;
+   uint8_t  BuildServedPlmnret=0;
+   uint8_t  BuildNrModeret=0;
+   uint8_t  idx;
+   uint8_t  plmnidx;
+   uint8_t  plmnCnt=1;
+   GNB_DU_Served_Cells_Item_t *srvCellItem;
+   duServedCell->list.size = plmnCnt * sizeof(GNB_DU_Served_Cells_ItemIEs_t *);
+   duServedCell->list.count = plmnCnt;
 
-      /* Initialize the F1Setup members */
-      DU_ALLOC(f1SetupReq->protocolIEs.list.array,f1SetupReq->protocolIEs.list.size);
-      if(f1SetupReq->protocolIEs.list.array == NULLP)
-      {
-        break;
-      }
-      for(ieIdx=0; ieIdx<elementCnt; ieIdx++)
+   DU_ALLOC(duServedCell->list.array, duServedCell->list.size);
+   if(duServedCell->list.array == NULLP)
+   {
+      return RFAILED;
+   }
+   for(plmnidx=0; plmnidx<plmnCnt; plmnidx++)
+   {
+      DU_ALLOC(duServedCell->list.array[plmnidx],\
+           sizeof(GNB_DU_Served_Cells_ItemIEs_t));
+      if(duServedCell->list.array[plmnidx] == NULLP)
       {
-        DU_ALLOC(f1SetupReq->protocolIEs.list.array[ieIdx],\
-              sizeof(F1SetupRequestIEs_t));
-        if(f1SetupReq->protocolIEs.list.array[ieIdx] == NULLP)
-        {
-           break;
-        }
+        return RFAILED;
       }
+   }
+   idx = 0;
+   duServedCell->list.array[idx]->id = ProtocolIE_ID_id_GNB_DU_Served_Cells_Item;
+   duServedCell->list.array[idx]->criticality = Criticality_reject;
+   duServedCell->list.array[idx]->value.present = \
+                                                 GNB_DU_Served_Cells_ItemIEs__value_PR_GNB_DU_Served_Cells_Item;
+   srvCellItem = \
+                &duServedCell->list.array[idx]->value.choice.GNB_DU_Served_Cells_Item;
+   /*nRCGI*/
+   BuildNrcgiret = BuildNrcgi(&srvCellItem->served_Cell_Information.nRCGI);
+   if(BuildNrcgiret != ROK)
+   {
+      return RFAILED;
+   }
+   /*nRPCI*/
+   srvCellItem->served_Cell_Information.nRPCI = \
+                                               duCfgParam.srvdCellLst[0].duCellInfo.cellInfo.nrPci;
 
-      ieIdx = 0;
-      /*TransactionID*/
-      f1SetupReq->protocolIEs.list.array[ieIdx]->id = ProtocolIE_ID_id_TransactionID;
-      f1SetupReq->protocolIEs.list.array[ieIdx]->criticality = Criticality_reject;
-      f1SetupReq->protocolIEs.list.array[ieIdx]->value.present =\
-                                                              F1SetupRequestIEs__value_PR_TransactionID;
-      f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.TransactionID = \
-                                                                            TRANS_ID;
-
-      /*DU ID*/
-      ieIdx++;
-      f1SetupReq->protocolIEs.list.array[ieIdx]->id = ProtocolIE_ID_id_gNB_DU_ID;
-      f1SetupReq->protocolIEs.list.array[ieIdx]->criticality = Criticality_reject;
-      f1SetupReq->protocolIEs.list.array[ieIdx]->value.present = \
-                                                               F1SetupRequestIEs__value_PR_GNB_DU_ID;
-      f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.size =\
-                                                                            sizeof(uint8_t);
-
-      DU_ALLOC(f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.buf,\
-           f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.size);
-      if(f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.buf == \
-           NULLP)
-      {
-        break;
-      }
-
-      f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.buf[0] =\
-         duCfgParam.duId;
-
-      /*DU Name*/
-      if(duCfgParam.duName != NULL)
-      {
-        ieIdx++;
-        f1SetupReq->protocolIEs.list.array[ieIdx]->id = ProtocolIE_ID_id_gNB_DU_Name;
-        f1SetupReq->protocolIEs.list.array[ieIdx]->criticality = Criticality_ignore;
-        f1SetupReq->protocolIEs.list.array[ieIdx]->value.present = F1SetupRequestIEs__value_PR_GNB_DU_Name;
-        f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_Name.size =\
-           strlen((char *)duCfgParam.duName);
-        DU_ALLOC(f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.\
-              GNB_DU_Name.buf, strlen((char *)duCfgParam.duName));
-        if(f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_Name.\
-              buf == NULLP)
-        {
-           break;
-        }
-        strcpy((char*)f1SetupReq->protocolIEs.list.array[ieIdx]->value.\
-              choice.GNB_DU_Name.buf,
-              (char*)&duCfgParam.duName);
-
-      }
-
-      /*Served Cell list */
-      ieIdx++;
-      f1SetupReq->protocolIEs.list.array[ieIdx]->id = \
-                                                    ProtocolIE_ID_id_gNB_DU_Served_Cells_List;
-      f1SetupReq->protocolIEs.list.array[ieIdx]->criticality = Criticality_reject;
-      f1SetupReq->protocolIEs.list.array[ieIdx]->value.present = \
-                                                               F1SetupRequestIEs__value_PR_GNB_DU_Served_Cells_List;
-      duServedCell = &f1SetupReq->protocolIEs.list.\
-                    array[ieIdx]->value.choice.GNB_DU_Served_Cells_List;
-      if(BuildServedCellList(duServedCell))
-      {
-        break;
-      }
-      /*RRC Version*/
-      ieIdx++;
-      f1SetupReq->protocolIEs.list.array[ieIdx]->id = \
-                                                    ProtocolIE_ID_id_GNB_DU_RRC_Version ;
-      f1SetupReq->protocolIEs.list.array[ieIdx]->criticality = Criticality_reject;
-      f1SetupReq->protocolIEs.list.array[ieIdx]->value.present = \
-                                                               F1SetupRequestIEs__value_PR_RRC_Version;
-      rrcVer = &f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.RRC_Version;
-      if(BuildRrcVer(rrcVer))
-      {
-        break;
-      }
-      xer_fprint(stdout, &asn_DEF_F1AP_PDU, f1apMsg);
-
-      /* Encode the F1SetupRequest type as APER */
-      memset(encBuf, 0, ENC_BUF_MAX_LEN);
-      encBufSize = 0;
-      encRetVal = aper_encode(&asn_DEF_F1AP_PDU, 0, f1apMsg, PrepFinalEncBuf,\
-           encBuf);
-
-      /* Encode results */
-      if(encRetVal.encoded == ENCODE_FAIL)
-      {
-        DU_LOG("\nERROR  -->  F1AP : Could not encode F1SetupRequest structure (at %s)\n",\
-              encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
-        break;
-      }
-      else
-      {
-        DU_LOG("\nDEBUG   -->  F1AP : Created APER encoded buffer for F1SetupRequest\n");
-        for(ieIdx=0; ieIdx< encBufSize; ieIdx++)
-        {
-           printf("%x",encBuf[ieIdx]);
-        }
-      }
-
-      /* Sending msg */
-      if(SendF1APMsg(DU_APP_MEM_REGION, DU_POOL) != ROK)
-      {
-        DU_LOG("\nERROR  -->  F1AP : Sending F1 Setup request failed");
-        break;
-      }
-
-      ret=ROK;
-      break;
-   }while(true);
+   /*fiveGS_TAC*/
+   BuildFiveGSTacret = BuildFiveGSTac(&srvCellItem->served_Cell_Information);
+   if(BuildFiveGSTacret != ROK)
+   {
+      return RFAILED;
+   }
+   /*Served PLMNs*/
+   BuildServedPlmnret = BuildServedPlmn(&srvCellItem->served_Cell_Information.servedPLMNs);
+   if(BuildServedPlmnret !=ROK)
+   {
+      return RFAILED;
+   }
+   /*nR Mode Info with FDD*/
+   BuildNrModeret = BuildNrMode(&srvCellItem->served_Cell_Information.nR_Mode_Info);
+   if(BuildNrModeret != ROK)
+   {
+      return RFAILED;
+   }
+   /*Measurement timing Config*/
+   srvCellItem->served_Cell_Information.measurementTimingConfiguration.\
+      size = sizeof(uint8_t);
+   DU_ALLOC(srvCellItem->served_Cell_Information.\
+        measurementTimingConfiguration.buf,srvCellItem->served_Cell_Information.measurementTimingConfiguration.size);
+   if(srvCellItem->served_Cell_Information.\
+        measurementTimingConfiguration.buf == NULLP)
+   {
+      return RFAILED;
+   }
+   srvCellItem->served_Cell_Information.measurementTimingConfiguration.buf[0] = \
+                                                                               duCfgParam.srvdCellLst[0].duCellInfo.measTimeCfg;
 
-   FreeF1SetupReq(f1apMsg);
+   /* GNB DU System Information */
+   DU_ALLOC(srvCellItem->gNB_DU_System_Information,
+        sizeof(GNB_DU_System_Information_t));
+   if(!srvCellItem->gNB_DU_System_Information)
+   {
+      return RFAILED;
+   }
+   /* MIB */
+   srvCellItem->gNB_DU_System_Information->mIB_message.size = duCfgParam.srvdCellLst[0].duSysInfo.mibLen;
+   DU_ALLOC(srvCellItem->gNB_DU_System_Information->mIB_message.buf,
+        srvCellItem->gNB_DU_System_Information->mIB_message.size);
+   if(!srvCellItem->gNB_DU_System_Information->mIB_message.buf)
+   {
+      return RFAILED;
+   }
+   memcpy(srvCellItem->gNB_DU_System_Information->mIB_message.buf, duCfgParam.srvdCellLst[0].duSysInfo.mibMsg, \
+                  srvCellItem->gNB_DU_System_Information->mIB_message.size);
 
-   return ret;
-}/* End of BuildAndSendF1SetupReq */
+   /* SIB1 */
+   srvCellItem->gNB_DU_System_Information->sIB1_message.size =\
+                                                             duCfgParam.srvdCellLst[0].duSysInfo.sib1Len;
 
+   DU_ALLOC(srvCellItem->gNB_DU_System_Information->sIB1_message.buf,
+        srvCellItem->gNB_DU_System_Information->sIB1_message.size);
+   if(!srvCellItem->gNB_DU_System_Information->sIB1_message.buf)
+   {
+      return RFAILED;
+   }
+   for(int x=0; x<srvCellItem->gNB_DU_System_Information->sIB1_message.size; x++)
+   {
+      srvCellItem->gNB_DU_System_Information->sIB1_message.buf[x]=\
+                                                                 duCfgParam.srvdCellLst[0].duSysInfo.sib1Msg[x];
+   }
+   return ROK; 
+}                                                                                                                  
 /*******************************************************************
  *
- * @brief Deallocating memory of BuildAndSendDUConfigUpdate
+ * @brief Builds RRC Version 
  *
  * @details
  *
- *    Function : FreeDUConfigUpdate
+ *    Function : BuildRrcVer
  *
- *    Functionality: Deallocating memory of variables allocated in
- *                    BuildAndSendDUConfigUpdate function
+ *    Functionality: Building RRC Version
  *
- * @params[in]  F1AP_PDU_t *f1apDuCfg
+ * @params[in] int idx,int elementCnt,RRC_Version_t *rrcver
+ * @return ROK     - success
+ *         RFAILED - failure
  *
- * @return ROK     - void
+ * ****************************************************************/
+uint8_t BuildRrcVer(RRC_Version_t *rrcVer)
+{
+   uint8_t rrcExt;
+   uint8_t rrcLatest;
+   rrcVer->latest_RRC_Version.size = sizeof(uint8_t);
+   DU_ALLOC(rrcVer->latest_RRC_Version.buf,sizeof(uint8_t));
+   if(rrcVer->latest_RRC_Version.buf == NULLP)
+   {
+      return RFAILED;
+   }
+   rrcVer->latest_RRC_Version.buf[0] = 0;
+   rrcVer->latest_RRC_Version.bits_unused = 5;
+   DU_ALLOC(rrcVer->iE_Extensions,sizeof(ProtocolExtensionContainer_4624P81_t));
+   if(rrcVer->iE_Extensions == NULLP)
+   {  
+      return RFAILED;
+   }
+   rrcVer->iE_Extensions->list.count = 1;
+   rrcVer->iE_Extensions->list.size = sizeof(RRC_Version_ExtIEs_t *);
+   DU_ALLOC(rrcVer->iE_Extensions->list.array,rrcVer->iE_Extensions->list.size);
+   if(rrcVer->iE_Extensions->list.array == NULLP)
+   {
+      return RFAILED;
+   }
+   rrcExt = 0;
+   DU_ALLOC(rrcVer->iE_Extensions->list.array[0],\
+        sizeof(RRC_Version_ExtIEs_t));
+   if(rrcVer->iE_Extensions->list.array[0] == NULLP)
+   {
+      return RFAILED;
+   }
+   rrcVer->iE_Extensions->list.array[rrcExt]->id = \
+                                                  ProtocolIE_ID_id_latest_RRC_Version_Enhanced;
+   rrcVer->iE_Extensions->list.array[rrcExt]->criticality = Criticality_reject;
+   rrcVer->iE_Extensions->list.array[rrcExt]->extensionValue.present =\
+                                                                     RRC_Version_ExtIEs__extensionValue_PR_Latest_RRC_Version_Enhanced;
+   rrcVer->iE_Extensions->list.array[rrcExt]->extensionValue.choice\
+      .Latest_RRC_Version_Enhanced.size = 3*sizeof(uint8_t);
+   DU_ALLOC(rrcVer->iE_Extensions->list.array[rrcExt]->extensionValue.choice\
+        .Latest_RRC_Version_Enhanced.buf,rrcVer->iE_Extensions->list.\
+        array[rrcExt]->extensionValue.choice.Latest_RRC_Version_Enhanced.size);
+   if(rrcVer->iE_Extensions->list.array[rrcExt]->extensionValue.choice\
+        .Latest_RRC_Version_Enhanced.buf == NULLP)
+   {
+      return RFAILED;
+   }
+   rrcLatest = 0;
+   rrcVer->iE_Extensions->list.array[rrcExt]->extensionValue.choice.\
+      Latest_RRC_Version_Enhanced.buf[rrcLatest] = 15;
+   rrcLatest++;
+   rrcVer->iE_Extensions->list.array[rrcExt]->extensionValue.choice.\
+      Latest_RRC_Version_Enhanced.buf[rrcLatest] = 5;
+   rrcLatest++;
+   rrcVer->iE_Extensions->list.array[rrcExt]->extensionValue.choice.\
+      Latest_RRC_Version_Enhanced.buf[rrcLatest] = 0;
+   return ROK;
+}
+/*******************************************************************
+ *
+ * @brief Sends F1 msg over SCTP
+ *
+ * @details
+ *
+ *    Function : sendF1APMsg
+ *
+ *    Functionality: Sends F1 msg over SCTP
+ *
+ * @params[in] Region region
+ *             Pool pool
+ * @return ROK     - success
+ *         RFAILED - failure
  *
  * ****************************************************************/
-void FreeDUConfigUpdate(F1AP_PDU_t *f1apDuCfg)
+uint8_t sendF1APMsg()
 {
-   uint8_t  i;
-   uint8_t  idx;
-   GNBDUConfigurationUpdate_t *duCfgUpdate = NULLP;
-   Served_Cells_To_Modify_List_t  *cellsToModify;
-   Served_Cells_To_Modify_Item_t *modifyItem;
-   idx=0;
-   i=1;
-   if(f1apDuCfg != NULLP)
+   Buffer *mBuf = NULLP;
+  
+   if(ODU_GET_MSG_BUF(DU_APP_MEM_REGION, DU_POOL, &mBuf) == ROK)
    {
-      if(f1apDuCfg->choice.initiatingMessage != NULLP)
+      if(ODU_ADD_POST_MSG_MULT((Data *)encBuf, encBufSize, mBuf) == ROK)
       {
-        duCfgUpdate = &f1apDuCfg->choice.initiatingMessage->\
-                      value.choice.GNBDUConfigurationUpdate;
-        if(duCfgUpdate->protocolIEs.list.array != NULLP)
-        {
-           if(duCfgUpdate->protocolIEs.list.array[i] != NULLP)
-           {
-              cellsToModify = &duCfgUpdate->protocolIEs.list.array[i]->\
-                              value.choice.Served_Cells_To_Modify_List;
-              if(cellsToModify->list.array != NULLP)
+           ODU_PRINT_MSG(mBuf, 0,0);
+
+           if(sctpSend(mBuf, F1_INTERFACE) != ROK)
+           {
+              DU_LOG("\nERROR  -->  F1AP : SCTP Send failed");
+              ODU_PUT_MSG_BUF(mBuf);
+              return RFAILED;
+           }
+      }
+      else
+      {
+        DU_LOG("\nERROR  -->  F1AP : ODU_ADD_POST_MSG_MULT failed");
+        ODU_PUT_MSG_BUF(mBuf);
+        return RFAILED;
+      }
+      ODU_PUT_MSG_BUF(mBuf);
+   }
+   else
+   {
+      DU_LOG("\nERROR  -->  F1AP : Failed to allocate memory");
+      return RFAILED;
+   }
+   return ROK; 
+} /* sendF1APMsg */
+
+/*******************************************************************
+ *
+ * @brief  deallocating the memory of function BuildAndSendF1SetupReq()
+ *
+ * @details
+ *
+ *    Function :  FreeRrcVer
+ *
+ *    Functionality: deallocating the memory of function BuildRrcVer
+ *
+ * @params[in] RRC_Version_t *rrcVer
+ * 
+ * @return void
+ *
+ *****************************************************************/
+void FreeRrcVer(RRC_Version_t *rrcVer)
+{
+   if(rrcVer->latest_RRC_Version.buf != NULLP)
+   {
+      if(rrcVer->iE_Extensions != NULLP)
+      {
+        if(rrcVer->iE_Extensions->list.array != NULLP)
+        {
+           if(rrcVer->iE_Extensions->list.array[0] != NULLP)
+           {
+              if(rrcVer->iE_Extensions->list.array[0]->extensionValue.choice.Latest_RRC_Version_Enhanced.buf
+                    != NULLP)
+              {
+                 DU_FREE(rrcVer->iE_Extensions->list.array[0]->extensionValue.choice\
+                       .Latest_RRC_Version_Enhanced.buf,rrcVer->iE_Extensions->list.\
+                       array[0]->extensionValue.choice.Latest_RRC_Version_Enhanced.size);
+              }
+              DU_FREE(rrcVer->iE_Extensions->list.array[0],sizeof(RRC_Version_ExtIEs_t));
+           }
+           DU_FREE(rrcVer->iE_Extensions->list.array,sizeof(RRC_Version_ExtIEs_t*));
+        }
+        DU_FREE(rrcVer->iE_Extensions,sizeof(ProtocolExtensionContainer_4624P81_t));
+      }
+      DU_FREE(rrcVer->latest_RRC_Version.buf,rrcVer->latest_RRC_Version.size);
+   }
+}
+/*******************************************************************
+ *
+ * @brief  deallocating the memory of function BuildAndSendF1SetupReq()
+ *
+ * @details
+ *
+ *    Function :  FreeServedCellList
+ *
+ *    Functionality:  deallocating the memory of function BuildServedCellList
+
+ *
+ * @params[in] GNB_DU_Served_Cells_List_t *duServedCell
+ *
+ * @return void
+ *
+ * ****************************************************************/
+void FreeServedCellList( GNB_DU_Served_Cells_List_t *duServedCell)
+{
+   uint8_t   plmnCnt=1;
+   uint8_t  servId=0;
+   uint8_t sliceId=0;
+   uint8_t  ieId=0;
+   uint8_t   extensionCnt=1;
+   uint8_t plmnidx=0;
+   GNB_DU_Served_Cells_Item_t *srvCellItem= &duServedCell->list.array[0]->value.choice.GNB_DU_Served_Cells_Item;
+   if(duServedCell->list.array!=NULLP)
+   {
+      if(duServedCell->list.array[0]!=NULLP)
+      {
+        if(srvCellItem->served_Cell_Information.nRCGI.pLMN_Identity.buf!=NULLP)
+        {
+           if(srvCellItem->served_Cell_Information.nRCGI.nRCellIdentity.buf !=NULLP)
+           {
+              if(srvCellItem->served_Cell_Information.fiveGS_TAC!=NULLP)
               {
-                 if(cellsToModify->list.array[idx] != NULLP)
+                 if(srvCellItem->served_Cell_Information.fiveGS_TAC->buf!=NULLP)
                  {
-                    modifyItem=&cellsToModify->list.array[idx]->value.choice.\
-                               Served_Cells_To_Modify_Item;
-                    if(modifyItem->oldNRCGI.pLMN_Identity.buf != NULLP)
+                    if(srvCellItem->served_Cell_Information.servedPLMNs.list.array!=NULLP)
                     {
-                       if(modifyItem->oldNRCGI.nRCellIdentity.buf != NULLP)
+                       if(srvCellItem->served_Cell_Information.servedPLMNs.list.array[0]!=NULLP)
                        {
-                          if(modifyItem->served_Cell_Information.nRCGI.pLMN_Identity.buf != NULLP)
+                          if(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->pLMN_Identity.buf!=NULLP)
                           {
-                             if(modifyItem->served_Cell_Information.nRCGI.nRCellIdentity.buf
-                                   != NULLP)
-                             { 
-                                if(modifyItem->served_Cell_Information.servedPLMNs.list.array\
-                                      != NULLP)
+                             if(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->iE_Extensions!=NULLP)
+                             {
+                                if(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->iE_Extensions->list.array!=NULLP)
                                 {
-                                   if(!modifyItem->served_Cell_Information.servedPLMNs.list.array[idx])
+                                   if(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->iE_Extensions->list.array[0]!=NULLP)
                                    {
-                                      if(modifyItem->served_Cell_Information.servedPLMNs.list.\
-                                            array[idx]->pLMN_Identity.buf != NULLP)
+                                      if(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->iE_Extensions->list.array[0]->\
+                                            extensionValue.choice.SliceSupportList.list.array!=NULLP)
                                       {
-                                         if(modifyItem->served_Cell_Information.servedPLMNs.list.\
-                                               array[idx]->iE_Extensions!= NULLP)
+                                         if(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->iE_Extensions->list.array[0]->\
+                                               extensionValue.choice.SliceSupportList.list.array[sliceId]!= NULLP)
                                          {
-                                            if(modifyItem->served_Cell_Information.servedPLMNs.list.\
-                                                  array[idx]->iE_Extensions->list.array != NULLP)
+                                            if(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->iE_Extensions->list.array[0]->\
+                                                  extensionValue.choice.SliceSupportList.list.array[sliceId]->sNSSAI.sST.buf!=NULLP)
                                             {
-                                               if(modifyItem->served_Cell_Information.servedPLMNs.list.\
-                                                     array[idx]->iE_Extensions->list.array[idx])
+                                               if(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->iE_Extensions->list.array[0]->\
+                                                     extensionValue.choice.SliceSupportList.list.array[sliceId]->sNSSAI.sD!=NULLP)
                                                {
-                                                  if(modifyItem->served_Cell_Information.servedPLMNs.list.array[idx]->\
-                                                        iE_Extensions->list.array[idx]->extensionValue.choice.SliceSupportList.\
-                                                        list.array !=NULLP)
+                                                  if(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->iE_Extensions->\
+                                                        list.array[0]->extensionValue.choice.SliceSupportList.list.array[sliceId]->sNSSAI.sD->buf!=NULLP)
                                                   {
-                                                     if(modifyItem->served_Cell_Information.servedPLMNs.list.array[idx]->\
-                                                           iE_Extensions->list.array[idx]->extensionValue.choice.SliceSupportList.\
-                                                           list.array[idx]!=NULLP)
-                                                     {   
-                                                        if(modifyItem->served_Cell_Information.servedPLMNs.list.array[idx]->\
-                                                              iE_Extensions->list.array[idx]->extensionValue.choice.SliceSupportList.\
-                                                              list.array[idx]->sNSSAI.sST.buf!=NULLP)
+                                                     if(srvCellItem->served_Cell_Information.nR_Mode_Info.choice.fDD!=NULLP)
+                                                     {
+                                                        if(srvCellItem->served_Cell_Information.nR_Mode_Info.choice.fDD->uL_NRFreqInfo.\
+                                                              freqBandListNr.list.array!=NULLP)
                                                         {
-                                                           if(modifyItem->served_Cell_Information.servedPLMNs.list.array[idx]->\
-                                                                 iE_Extensions->list.array[idx]->extensionValue.choice.SliceSupportList.\
-                                                                 list.array[idx]->sNSSAI.sD != NULLP)
-                                                           { 
-                                                              if(modifyItem->served_Cell_Information.servedPLMNs.list.array[idx]->\
-                                                                    iE_Extensions->list.array[idx]->extensionValue.choice.SliceSupportList.\
-                                                                    list.array[idx]->sNSSAI.sD->buf!=NULLP)
+                                                           if(srvCellItem->served_Cell_Information.nR_Mode_Info.choice.fDD->uL_NRFreqInfo.\
+                                                                 freqBandListNr.list.array[0]!=NULLP)
+                                                           {
+                                                              if(srvCellItem->served_Cell_Information.nR_Mode_Info.choice.fDD->dL_NRFreqInfo.\
+                                                                    freqBandListNr.list.array)
                                                               {
-                                                                 if(modifyItem->served_Cell_Information.nR_Mode_Info.choice.fDD
-                                                                       !=NULLP)
+                                                                 if(srvCellItem->served_Cell_Information.nR_Mode_Info.choice.fDD->dL_NRFreqInfo.\
+                                                                       freqBandListNr.list.array[0]!=NULLP)
                                                                  {
-                                                                    if(modifyItem->served_Cell_Information.nR_Mode_Info.choice.\
-                                                                          fDD->uL_NRFreqInfo.freqBandListNr.list.array!=NULLP)
+                                                                    if(srvCellItem->served_Cell_Information.measurementTimingConfiguration.buf!=NULLP)
                                                                     {
-                                                                       if(modifyItem->served_Cell_Information.nR_Mode_Info.choice.\
-                                                                             fDD->uL_NRFreqInfo.freqBandListNr.list.array[idx]!=NULLP)
+                                                                       if(!srvCellItem->gNB_DU_System_Information)
                                                                        {
-                                                                          if(modifyItem->served_Cell_Information.nR_Mode_Info.choice.\
-                                                                                fDD->dL_NRFreqInfo.freqBandListNr.list.array !=NULLP)
+                                                                          if(srvCellItem->gNB_DU_System_Information->mIB_message.buf!=NULLP)
                                                                           {
-                                                                             if(modifyItem->served_Cell_Information.nR_Mode_Info.\
-                                                                                   choice.fDD->dL_NRFreqInfo.freqBandListNr.list.\
-                                                                                   array[idx]!= NULLP)
-                                                                             {
-                                                                                if(modifyItem->served_Cell_Information.\
-                                                                                      measurementTimingConfiguration.buf !=NULLP)
-                                                                                {
-                                                                                   idx=2;
-                                                                                   if(duCfgUpdate->protocolIEs.list.array[idx]->value.\
-                                                                                         choice.GNB_DU_ID.buf!=NULLP)
-                                                                                   {
-                                                                                      DU_FREE(duCfgUpdate->protocolIEs.list.\
-                                                                                            array[idx]->value.choice.GNB_DU_ID.buf,\
-                                                                                            duCfgUpdate->protocolIEs.list.array[idx]->\
-                                                                                            value.choice.GNB_DU_ID.size);
-                                                                                   }
-                                                                                   idx=0;
-                                                                                   DU_FREE(modifyItem->served_Cell_Information.\
-                                                                                         measurementTimingConfiguration.\
-                                                                                         buf,modifyItem->served_Cell_Information.\
-                                                                                         measurementTimingConfiguration.size);
-                                                                                }
-                                                                                DU_FREE(modifyItem->served_Cell_Information.\
-                                                                                      nR_Mode_Info.choice.fDD->dL_NRFreqInfo.freqBandListNr.\
-                                                                                      list.array[idx],sizeof(FreqBandNrItem_t));
+                                                                             if(srvCellItem->gNB_DU_System_Information->sIB1_message.buf!=NULLP)
+                                                                             { 
+                                                                                DU_FREE(srvCellItem->gNB_DU_System_Information->sIB1_message.buf,\
+                                                                                      srvCellItem->gNB_DU_System_Information->sIB1_message.size);
+                                                                                DU_FREE(duCfgParam.srvdCellLst[0].duSysInfo.sib1Msg,\
+                                                                                      srvCellItem->gNB_DU_System_Information->sIB1_message.size);
                                                                              }
-                                                                             DU_FREE(modifyItem->served_Cell_Information.nR_Mode_Info\
-                                                                                   .choice.fDD->dL_NRFreqInfo.freqBandListNr.list.array,\
-                                                                                   modifyItem->served_Cell_Information.nR_Mode_Info.\
-                                                                                   choice.fDD->dL_NRFreqInfo.freqBandListNr.list.size);
+                                                                             DU_FREE(srvCellItem->gNB_DU_System_Information->mIB_message.buf,\
+                                                                                   srvCellItem->gNB_DU_System_Information->mIB_message.size);
+                                                                             DU_FREE(duCfgParam.srvdCellLst[0].duSysInfo.mibMsg,\
+                                                                                   strlen((char*)duCfgParam.srvdCellLst[0].duSysInfo.mibMsg));
                                                                           }
-                                                                          DU_FREE(modifyItem->served_Cell_Information.nR_Mode_Info.\
-                                                                                choice.fDD->uL_NRFreqInfo.freqBandListNr.list.\
-                                                                                array[idx],sizeof(FreqBandNrItem_t));
+                                                                          DU_FREE(srvCellItem->gNB_DU_System_Information,sizeof(GNB_DU_System_Information_t));
                                                                        }
-                                                                       DU_FREE(modifyItem->served_Cell_Information.nR_Mode_Info.\
-                                                                             choice.\
-                                                                             fDD->uL_NRFreqInfo.freqBandListNr.list.\
-                                                                             array,modifyItem->served_Cell_Information.nR_Mode_Info.choice.\
-                                                                             fDD->uL_NRFreqInfo.freqBandListNr.list.size);
+                                                                       DU_FREE(srvCellItem->served_Cell_Information.measurementTimingConfiguration.buf,\
+                                                                             srvCellItem->served_Cell_Information.measurementTimingConfiguration.size);
                                                                     }
-                                                                    DU_FREE(modifyItem->served_Cell_Information.nR_Mode_Info.choice.\
-                                                                          fDD,sizeof(FDD_Info_t));
+                                                                    DU_FREE(srvCellItem->served_Cell_Information.nR_Mode_Info.choice.fDD->dL_NRFreqInfo.\
+                                                                          freqBandListNr.list.array[0],sizeof(FreqBandNrItem_t));
                                                                  }
-                                                                 DU_FREE(modifyItem->served_Cell_Information.servedPLMNs.list.\
-                                                                       array[idx]->iE_Extensions->list.array[idx]->extensionValue.choice.\
-                                                                       SliceSupportList.\
-                                                                       list.array[idx]->sNSSAI.sD->buf,modifyItem->served_Cell_Information.\
-                                                                       servedPLMNs.list.array[idx]->iE_Extensions->list.array[idx]->\
-                                                                       extensionValue.choice.SliceSupportList.list.array[idx]->\
-                                                                       sNSSAI.sD->size);
-
+                                                                 DU_FREE(srvCellItem->served_Cell_Information.nR_Mode_Info.choice.fDD->dL_NRFreqInfo.\
+                                                                       freqBandListNr.list.array,sizeof(FreqBandNrItem_t *));
                                                               }
-                                                              DU_FREE(modifyItem->served_Cell_Information.servedPLMNs.list.\
-                                                                    array[idx]->\
-                                                                    iE_Extensions->list.array[idx]->extensionValue.choice.SliceSupportList.\
-                                                                    list.array[idx]->sNSSAI.sD,sizeof(OCTET_STRING_t));
+                                                              DU_FREE(srvCellItem->served_Cell_Information.nR_Mode_Info.choice.fDD->uL_NRFreqInfo.freqBandListNr.\
+                                                                    list.array[0],sizeof(FreqBandNrItem_t));
                                                            }
-                                                           DU_FREE(modifyItem->served_Cell_Information.servedPLMNs.list.array[idx]->\
-                                                                 iE_Extensions->list.array[idx]->extensionValue.choice.SliceSupportList.\
-                                                                 list.array[idx]->sNSSAI.sST.buf,modifyItem->served_Cell_Information.\
-                                                                 servedPLMNs.\
-                                                                 list.array[idx]->iE_Extensions->list.array[idx]->extensionValue.choice.\
-                                                                 SliceSupportList.list.array[idx]->sNSSAI.sST.size);
+                                                           DU_FREE(srvCellItem->served_Cell_Information.nR_Mode_Info.choice.fDD->uL_NRFreqInfo.freqBandListNr.\
+                                                                 list.array,sizeof(FreqBandNrItem_t*));
                                                         }
-                                                        DU_FREE(modifyItem->served_Cell_Information.servedPLMNs.list.array[idx]->\
-                                                              iE_Extensions->list.array[idx]->extensionValue.choice.SliceSupportList.\
-                                                              list.array[idx],sizeof(SliceSupportItem_t));
+                                                        DU_FREE(srvCellItem->served_Cell_Information.nR_Mode_Info.choice.fDD,sizeof(FDD_Info_t));
                                                      }
-                                                     DU_FREE(modifyItem->served_Cell_Information.servedPLMNs.list.array[idx]->\
-                                                           iE_Extensions->list.array[idx]->extensionValue.choice.SliceSupportList.\
-                                                           list.array,\
-                                                           modifyItem->served_Cell_Information.servedPLMNs.list.array[idx]->\
-                                                           iE_Extensions->list.array[idx]->extensionValue.choice.SliceSupportList.list.size);
+                                                     DU_FREE(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->\
+                                                           iE_Extensions->list.array[ieId]->extensionValue.choice.SliceSupportList.list.array[sliceId]->\
+                                                           sNSSAI.sD->buf,srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->iE_Extensions->
+                                                           list.array[ieId]->extensionValue.choice.SliceSupportList.list.array[sliceId]->sNSSAI.sD->size);
                                                   }
+                                                  DU_FREE(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->\
+                                                        iE_Extensions->list.array[ieId]->extensionValue.choice.SliceSupportList.\
+                                                        list.array[sliceId]->sNSSAI.sD,sizeof(OCTET_STRING_t));
                                                }
-                                               for(i=0;i<modifyItem->served_Cell_Information.servedPLMNs.list.\
-                                                     array[idx]->iE_Extensions->list.count;i++)
-                                               {
-                                                  DU_FREE(modifyItem->served_Cell_Information.servedPLMNs.list.\
-                                                        array[idx]->iE_Extensions->list.array[i],\
-                                                        sizeof(ServedPLMNs_ItemExtIEs_t ));
-                                               }
-                                               DU_FREE(modifyItem->served_Cell_Information.servedPLMNs.list.\
-                                                     array[idx]->iE_Extensions->list.array,modifyItem->served_Cell_Information.servedPLMNs.
-                                                     list.array[idx]->iE_Extensions->list.size);
+                                               DU_FREE(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->\
+                                                     iE_Extensions->list.array[ieId]->extensionValue.choice.SliceSupportList.list.array[sliceId]->\
+                                                     sNSSAI.sST.buf,sizeof(uint8_t));
                                             }
-                                            DU_FREE(modifyItem->served_Cell_Information.servedPLMNs.list.\
-                                                  array[idx]->iE_Extensions,sizeof(ProtocolExtensionContainer_4624P3_t));
+                                            DU_FREE(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->iE_Extensions->list.array[0]->\
+                                                  extensionValue.choice.SliceSupportList.list.array[sliceId],sizeof(SliceSupportItem_t));
                                          }
-                                         DU_FREE(modifyItem->served_Cell_Information.servedPLMNs.list.\
-                                               array[idx]->pLMN_Identity.buf,
-                                               modifyItem->served_Cell_Information.servedPLMNs.list.array[idx]->pLMN_Identity.size);
-                                      }
-                                   }
-                                   for(i=0;i<modifyItem->served_Cell_Information.servedPLMNs.list.count;i++)
-                                   {
-                                      if(modifyItem->served_Cell_Information.servedPLMNs.list.array[i]
-                                            != NULLP)
-                                      {
-                                         DU_FREE(modifyItem->served_Cell_Information.servedPLMNs.list.array[i],\
-                                               sizeof(ServedPLMNs_Item_t));
+                                         DU_FREE(srvCellItem->served_Cell_Information.servedPLMNs.list.array[servId]->iE_Extensions->list.array[0]->\
+                                               extensionValue.choice.SliceSupportList.list.array,sizeof(SliceSupportItem_t*));
                                       }
+                                      DU_FREE(srvCellItem->served_Cell_Information.servedPLMNs.list.\
+                                            array[servId]->iE_Extensions->list.array[plmnidx],sizeof(ServedPLMNs_ItemExtIEs_t));
                                    }
-                                   DU_FREE(modifyItem->served_Cell_Information.servedPLMNs.list.array,\
-                                         modifyItem->served_Cell_Information.servedPLMNs.list.size);
+                                   DU_FREE(srvCellItem->served_Cell_Information.servedPLMNs.list.\
+                                         array[servId]->iE_Extensions->list.array,\
+                                         extensionCnt*sizeof(ServedPLMNs_ItemExtIEs_t*));
                                 }
-                                DU_FREE(modifyItem->served_Cell_Information.nRCGI.nRCellIdentity.buf,\
-                                      modifyItem->served_Cell_Information.nRCGI.nRCellIdentity.size);          
+                                DU_FREE(srvCellItem->served_Cell_Information.servedPLMNs.list.\
+                                      array[servId]->iE_Extensions,sizeof(ProtocolExtensionContainer_4624P3_t));
                              }
-                             DU_FREE(modifyItem->served_Cell_Information.nRCGI.pLMN_Identity.buf,\
-                                   modifyItem->served_Cell_Information.nRCGI.pLMN_Identity.size);
+                             DU_FREE(srvCellItem->served_Cell_Information.servedPLMNs.list.\
+                                   array[servId]->pLMN_Identity.buf,srvCellItem->served_Cell_Information.\
+                                   servedPLMNs.list.array[servId]->pLMN_Identity.size
+                                   * sizeof(uint8_t));
                           }
-                          DU_FREE(modifyItem->oldNRCGI.nRCellIdentity.buf,\
-                                modifyItem->oldNRCGI.nRCellIdentity.size);
+                          DU_FREE(srvCellItem->served_Cell_Information.servedPLMNs.list.array[plmnidx],\
+                                sizeof(ServedPLMNs_Item_t *));
                        }
-                       DU_FREE(modifyItem->oldNRCGI.pLMN_Identity.buf,\
-                             modifyItem->oldNRCGI.pLMN_Identity.size);
+                       DU_FREE(srvCellItem->served_Cell_Information.servedPLMNs.list.array,\
+                             sizeof(ServedPLMNs_Item_t *));
                     }
+                    DU_FREE(srvCellItem->served_Cell_Information.fiveGS_TAC->buf,\
+                          sizeof(srvCellItem->served_Cell_Information.fiveGS_TAC->size));
                  }
-                 for(i=0; i<cellsToModify->list.count ;i++)
-                 {
-                    if(cellsToModify->list.array[i] != NULLP)
-                    {
-                       DU_FREE(cellsToModify->list.array[i],\
-                             sizeof(Served_Cells_To_Modify_ItemIEs_t));
-                    } 
-                 }
-                 DU_FREE(cellsToModify->list.array,cellsToModify->list.size);
-              }
-           }
-           for(i=0;i<duCfgUpdate->protocolIEs.list.count;i++)
-           {
-              if(duCfgUpdate->protocolIEs.list.array[i] !=NULLP)
-              {
-                 DU_FREE(duCfgUpdate->protocolIEs.list.array[i],\
-                       sizeof(GNBDUConfigurationUpdateIEs_t));
+                 DU_FREE(srvCellItem->served_Cell_Information.fiveGS_TAC,sizeof(FiveGS_TAC_t));
               }
+              DU_FREE(srvCellItem->served_Cell_Information.nRCGI.nRCellIdentity.buf,\
+                    srvCellItem->served_Cell_Information.nRCGI.nRCellIdentity.size *
+                    sizeof(uint8_t));
            }
-           DU_FREE(duCfgUpdate->protocolIEs.list.array,duCfgUpdate->protocolIEs.list.size);
+           DU_FREE(srvCellItem->served_Cell_Information.nRCGI.pLMN_Identity.buf,\
+                 srvCellItem->served_Cell_Information.nRCGI.pLMN_Identity.size *
+                 sizeof(uint8_t));
         }
-        DU_FREE(f1apDuCfg->choice.initiatingMessage,sizeof(InitiatingMessage_t));
+        DU_FREE(duServedCell->list.array[plmnidx],sizeof(GNB_DU_Served_Cells_ItemIEs_t));
       }
-      DU_FREE(f1apDuCfg, (Size)sizeof(F1AP_PDU_t));
+      DU_FREE(duServedCell->list.array,plmnCnt*sizeof(GNB_DU_Served_Cells_ItemIEs_t*));
    }
 }
-
 /*******************************************************************
  *
- * @brief Fills Served Plmns required in ServCellInfo IE
+ * @brief  deallocating the memory of function BuildAndSendF1SetupReq()
  *
  * @details
  *
- *    Function : fillServedPlmns
+ *    Function :  FreeF1SetupReq
  *
- *    Functionality: Fills Served Plmns required in ServCellInfo IE
+ *    Functionality:  deallocating the memory of function BuildAndSendF1SetupReq
  *
- * @params[in] Pointer to ServedPLMNs_List_t *
+ * @params[in] F1AP_PDU_t *f1apMsg
  *
- * @return ROK     - success
- *         RFAILED - failure
+ * @return void
  *
- *****************************************************************/
-
-uint8_t fillServedPlmns(ServedPLMNs_List_t *servedPlmn)
+ * ****************************************************************/
+void FreeF1SetupReq(F1AP_PDU_t *f1apMsg)
 {
-   uint8_t ieIdx, ieListCnt;
-
-   servedPlmn->list.array[0]->pLMN_Identity.size = 3*sizeof(uint8_t);
-   DU_ALLOC(servedPlmn->list.array[0]->pLMN_Identity.buf, servedPlmn->list.\
-        array[0]->pLMN_Identity.size);
-   if(servedPlmn->list.array[0]->pLMN_Identity.buf == NULLP)
-   {
-      return RFAILED;
-   }
-   buildPlmnId(duCfgParam.srvdCellLst[0].duCellInfo.cellInfo.plmn[0],\
-        servedPlmn->list.array[0]->pLMN_Identity.buf);
-   DU_ALLOC(servedPlmn->list.array[0]->iE_Extensions,sizeof(ProtocolExtensionContainer_4624P3_t));
-   if(servedPlmn->list.array[0]->iE_Extensions == NULLP)
-   {
-      return RFAILED;
-   }
+   uint8_t ieIdx, ieIdx2;
+   F1SetupRequest_t *f1SetupReq=NULLP;
 
-   ieListCnt=1;
-   servedPlmn->list.array[0]->iE_Extensions->list.count = ieListCnt;
-   servedPlmn->list.array[0]->iE_Extensions->list.size = ieListCnt *sizeof(ServedPLMNs_ItemExtIEs_t *);
-   DU_ALLOC(servedPlmn->list.array[0]->iE_Extensions->list.array,servedPlmn->list.array[0]->\
-        iE_Extensions->list.size);
-   if(servedPlmn->list.array[0]->iE_Extensions->list.array == NULLP)
-   {
-      return RFAILED;
-   }
-   for(ieIdx=0;ieIdx<ieListCnt;ieIdx++)
+   if(f1apMsg != NULLP)
    {
-      DU_ALLOC(servedPlmn->list.array[0]->iE_Extensions->list.array[ieIdx],\
-           sizeof(ServedPLMNs_ItemExtIEs_t));
-      if(servedPlmn->list.array[0]->iE_Extensions->list.array[ieIdx] == NULLP)
+      if(f1apMsg->choice.initiatingMessage != NULLP)
       {
-        return RFAILED;
+        f1SetupReq = &f1apMsg->choice.initiatingMessage->value.choice.F1SetupRequest;
+        if(f1SetupReq->protocolIEs.list.array != NULLP)
+        {
+           for(ieIdx = 0; ieIdx < f1SetupReq->protocolIEs.list.count; ieIdx++)
+           {
+              if(f1SetupReq->protocolIEs.list.array[ieIdx] != NULLP)
+              {
+                 switch(f1SetupReq->protocolIEs.list.array[ieIdx]->id)
+                 {
+                    case ProtocolIE_ID_id_TransactionID:
+                       break;
+                    case ProtocolIE_ID_id_gNB_DU_ID:
+                       DU_FREE(f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.buf,\
+                             f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.size);
+                       break;
+                    case ProtocolIE_ID_id_gNB_DU_Name:
+                       DU_FREE(f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_Name.buf,\
+                             strlen((char *)duCfgParam.duName));
+                       break;
+                    case ProtocolIE_ID_id_gNB_DU_Served_Cells_List:
+                       FreeServedCellList(&f1SetupReq->protocolIEs.list.\
+                             array[ieIdx]->value.choice.GNB_DU_Served_Cells_List);
+                       break;
+                    case ProtocolIE_ID_id_GNB_DU_RRC_Version:
+                       FreeRrcVer(&f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.RRC_Version);
+                       break;
+                    default:
+                       DU_LOG("\nERROR  -->  Invalid Event Type %ld", f1SetupReq->protocolIEs.list.array[ieIdx]->id);
+                       break;
+                 }
+              }
+              break;
+           }
+           for(ieIdx2=0; ieIdx2< ieIdx; ieIdx2++)
+           {
+              DU_FREE(f1SetupReq->protocolIEs.list.array[ieIdx2],sizeof(F1SetupRequestIEs_t));
+           }
+           DU_FREE(f1SetupReq->protocolIEs.list.array,\
+                 f1SetupReq->protocolIEs.list.size);
+        }
+        DU_FREE(f1apMsg->choice.initiatingMessage, sizeof(InitiatingMessage_t));
       }
+      DU_FREE(f1apMsg, sizeof(F1AP_PDU_t));
    }
-   //plmnIeExt = servedPlmn->list.array[0]->iE_Extensions; 
-   servedPlmn->list.array[0]->iE_Extensions->list.array[0]->id =ProtocolIE_ID_id_TAISliceSupportList;
-   servedPlmn->list.array[0]->iE_Extensions->list.array[0]->criticality = Criticality_ignore;
-   servedPlmn->list.array[0]->iE_Extensions->list.array[0]->extensionValue.present = \
-      ServedPLMNs_ItemExtIEs__extensionValue_PR_SliceSupportList;
-   servedPlmn->list.array[0]->iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
-      list.count = 1;
-   servedPlmn->list.array[0]->\
-      iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
-      list.size = sizeof(SliceSupportItem_t *);
-   DU_ALLOC(servedPlmn->list.array[0]->\
-        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
-        list.array,servedPlmn->list.array[0]->\
-        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.list.size);
-   if(servedPlmn->list.array[0]->\
-        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
-        list.array == NULLP)
-   {
-      return RFAILED;
-   }
-
-   DU_ALLOC(servedPlmn->list.array[0]->\
-        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
-        list.array[0],sizeof( SliceSupportItem_t));
-   if(servedPlmn->list.array[0]->\
-        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
-        list.array[0] == NULLP)
-   {
-      return RFAILED;
-   }
-   servedPlmn->list.array[0]->\
-      iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
-      list.array[0]->sNSSAI.sST.size = sizeof(uint8_t);
-   DU_ALLOC(servedPlmn->list.array[0]->\
-        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
-        list.array[0]->sNSSAI.sST.buf,servedPlmn->list.array[0]->\
-        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.list.array[0]->sNSSAI.sST.size);
-   if(servedPlmn->list.array[0]->\
-        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
-        list.array[0]->sNSSAI.sST.buf == NULLP)
-   {
-      return RFAILED;
-   }
-   servedPlmn->list.array[0]->\
-      iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
-      list.array[0]->sNSSAI.sST.buf[0] = 3;
-   DU_ALLOC(servedPlmn->list.array[0]->\
-        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
-        list.array[0]->sNSSAI.sD,sizeof(OCTET_STRING_t));
-   if(servedPlmn->list.array[0]->\
-        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
-        list.array[0]->sNSSAI.sD == NULLP)
-   {
-      return RFAILED;
-   }
-   servedPlmn->list.array[0]->\
-      iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
-      list.array[0]->sNSSAI.sD->size = 3*sizeof(uint8_t);
-   DU_ALLOC(servedPlmn->list.array[0]->\
-        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
-        list.array[0]->sNSSAI.sD->buf,servedPlmn->list.array[0]->\
-        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
-        list.array[0]->sNSSAI.sD->size);
-   if(servedPlmn->list.array[0]->\
-        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
-        list.array[0]->sNSSAI.sD->buf == NULLP)
-   {
-      return RFAILED;
-   }
-   servedPlmn->list.array[0]->\
-      iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
-      list.array[0]->sNSSAI.sD->buf[0] = 3;
-   servedPlmn->list.array[0]->\
-      iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
-      list.array[0]->sNSSAI.sD->buf[1] = 6;
-   servedPlmn->list.array[0]->\
-      iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
-      list.array[0]->sNSSAI.sD->buf[2] = 9;
-   return ROK;
 }
-
 /*******************************************************************
  *
- * @brief Fills Nr Fdd Info required in ServCellInfo IE
+ * @brief Builds and Send the F1SetupRequest
  *
  * @details
  *
- *    Function : fillNrFddInfo
- *
- *    Functionality: Fills Nr Fdd Info required in ServCellInfo IE
+ *    Function : BuildAndSendF1SetupReq
  *
- * @params[in] Pointer to NR_Mode_Info_t *
+ * Functionality:Fills the F1SetupRequest
  *
  * @return ROK     - success
  *         RFAILED - failure
  *
- *****************************************************************/
-
-uint8_t fillNrFddInfo(NR_Mode_Info_t *nrFdd)
+ ******************************************************************/
+uint8_t BuildAndSendF1SetupReq()
 {
-   nrFdd->choice.fDD->uL_NRFreqInfo.nRARFCN = duCfgParam.srvdCellLst[0].duCellInfo.\
-      f1Mode.mode.fdd.ulNrFreqInfo.nrArfcn;
-   nrFdd->choice.fDD->uL_NRFreqInfo.freqBandListNr.list.count = 1;
-   nrFdd->choice.fDD->uL_NRFreqInfo.freqBandListNr.list.size = sizeof(FreqBandNrItem_t*);
-   DU_ALLOC(nrFdd->choice.fDD->uL_NRFreqInfo.freqBandListNr.list.\
-        array, nrFdd->choice.fDD->uL_NRFreqInfo.freqBandListNr.list.size);
-   if(nrFdd->choice.fDD->uL_NRFreqInfo.freqBandListNr.list.array == NULLP)
-   {
-      return RFAILED;
-   }
-   DU_ALLOC(nrFdd->choice.fDD->uL_NRFreqInfo.freqBandListNr.list.array[0], \
-      sizeof(FreqBandNrItem_t));
-   if(nrFdd->choice.fDD->uL_NRFreqInfo.freqBandListNr.list.array[0] == NULLP)
-   {
-      return RFAILED;
-   }
-   nrFdd->choice.fDD->uL_NRFreqInfo.freqBandListNr.list.array[0]->freqBandIndicatorNr = \
-      duCfgParam.srvdCellLst[0].duCellInfo.f1Mode.mode.fdd.ulNrFreqInfo.\
-      freqBand[0].nrFreqBand;
-   nrFdd->choice.fDD->uL_NRFreqInfo.freqBandListNr.list.array[0]->supportedSULBandList.list.count=0;
-   nrFdd->choice.fDD->dL_NRFreqInfo.nRARFCN = duCfgParam.srvdCellLst[0].duCellInfo.f1Mode.mode.fdd.\
-      dlNrFreqInfo.nrArfcn;
-   nrFdd->choice.fDD->dL_NRFreqInfo.freqBandListNr.list.count = 1;
-   nrFdd->choice.fDD->dL_NRFreqInfo.freqBandListNr.list.size = sizeof(FreqBandNrItem_t *);
-   DU_ALLOC(nrFdd->choice.fDD->dL_NRFreqInfo.freqBandListNr.list.array,nrFdd->\
-        choice.fDD->dL_NRFreqInfo.freqBandListNr.list.size);
-   if(nrFdd->choice.fDD->dL_NRFreqInfo.freqBandListNr.list.array == NULLP)
-   {
-      return RFAILED;
-   }
-   DU_ALLOC(nrFdd->choice.fDD->dL_NRFreqInfo.freqBandListNr.list.array[0],\
-        sizeof(FreqBandNrItem_t));
-   if(nrFdd->choice.fDD->dL_NRFreqInfo.freqBandListNr.list.array[0] == NULLP)
+   uint8_t   ret, ieIdx, elementCnt;
+   F1AP_PDU_t                 *f1apMsg = NULLP;
+   F1SetupRequest_t           *f1SetupReq=NULLP;
+   GNB_DU_Served_Cells_List_t *duServedCell=NULLP;
+   RRC_Version_t              *rrcVer=NULLP;
+   asn_enc_rval_t             encRetVal;        /* Encoder return value */
+   ret= RFAILED;
+
+   DU_LOG("\nINFO   -->  F1AP : Building F1 Setup Request\n");
+   do
    {
-      return RFAILED;
-   }
-   nrFdd->choice.fDD->dL_NRFreqInfo.freqBandListNr.list.array[0]->freqBandIndicatorNr = \
-      duCfgParam.srvdCellLst[0].duCellInfo.f1Mode.mode.fdd.dlNrFreqInfo.\
-      freqBand[0].nrFreqBand;
-   nrFdd->choice.fDD->dL_NRFreqInfo.freqBandListNr.list.array[0]->supportedSULBandList.list.count=0;
-   
-   /*Transmission Bandwidth*/
-   nrFdd->choice.fDD->uL_Transmission_Bandwidth.nRSCS = duCfgParam.srvdCellLst[0].duCellInfo.\
-      f1Mode.mode.fdd.ulTxBw.nrScs;
-   nrFdd->choice.fDD->uL_Transmission_Bandwidth.nRNRB = duCfgParam.srvdCellLst[0].duCellInfo.\
-      f1Mode.mode.fdd.ulTxBw.nrb;
-   nrFdd->choice.fDD->dL_Transmission_Bandwidth.nRSCS = duCfgParam.srvdCellLst[0].duCellInfo.\
-      f1Mode.mode.fdd.dlTxBw.nrScs;
-   nrFdd->choice.fDD->dL_Transmission_Bandwidth.nRNRB = duCfgParam.srvdCellLst[0].duCellInfo.\
-      f1Mode.mode.fdd.dlTxBw.nrb;
+      DU_ALLOC(f1apMsg, sizeof(F1AP_PDU_t));
+      if(f1apMsg == NULLP)
+      {
+        break;
+      }
+      f1apMsg->present = F1AP_PDU_PR_initiatingMessage;
+      DU_ALLOC(f1apMsg->choice.initiatingMessage, sizeof(InitiatingMessage_t));
+      if(f1apMsg->choice.initiatingMessage == NULLP)
+      {
+        break;
+      }
+      f1apMsg->choice.initiatingMessage->procedureCode = ProcedureCode_id_F1Setup;
+      f1apMsg->choice.initiatingMessage->criticality = Criticality_reject;
+      f1apMsg->choice.initiatingMessage->value.present = \
+                                                        InitiatingMessage__value_PR_F1SetupRequest;
 
-   return ROK;
-}
+      f1SetupReq = &f1apMsg->choice.initiatingMessage->value.choice.F1SetupRequest;
 
-/*******************************************************************
- *
- * @brief Fills ServCellInfo IE
- *
- * @details
- *
- *    Function : fillServedCellInfo
- *
- *    Functionality: Fills ServCellInfo
- *
- * @params[in] Pointer to Served_Cell_Information_t *
- *
- * @return ROK     - success
- *         RFAILED - failure
- *
- *****************************************************************/
+      elementCnt = (duCfgParam.duName != NULL) ? 5 : 4;
 
-uint8_t fillServedCellInfo(Served_Cell_Information_t *srvCellInfo)
-{
-   uint8_t tmp, ieIdx, ieListCnt;
+      f1SetupReq->protocolIEs.list.count = elementCnt;
+      f1SetupReq->protocolIEs.list.size = elementCnt * sizeof(F1SetupRequestIEs_t );
 
-   /*nRCGI*/
-   srvCellInfo->nRCGI.pLMN_Identity.size =3*sizeof(uint8_t);
-   DU_ALLOC(srvCellInfo->nRCGI.pLMN_Identity.buf,\
-        srvCellInfo->nRCGI.pLMN_Identity.size);
-   if(srvCellInfo->nRCGI.pLMN_Identity.buf == NULLP)
-   {
-      return RFAILED;
-   }
-   buildPlmnId(duCfgParam.srvdCellLst[0].duCellInfo.cellInfo.nrCgi.plmn,\
-        srvCellInfo->nRCGI.pLMN_Identity.buf);
-   srvCellInfo->nRCGI.nRCellIdentity.size =5*sizeof(uint8_t);
-   DU_ALLOC(srvCellInfo->nRCGI.nRCellIdentity.buf,\
-        srvCellInfo->nRCGI.nRCellIdentity.size);
-   if(srvCellInfo->nRCGI.nRCellIdentity.buf == NULLP)
-   {
-      return RFAILED;
-   }
-   for (tmp = 0 ; tmp < srvCellInfo->\
-        nRCGI.nRCellIdentity.size-1 ; tmp++)
-   {
-      srvCellInfo->nRCGI.nRCellIdentity.buf[tmp] = 0;
-   }
-   srvCellInfo->nRCGI.nRCellIdentity.buf[4] = 16;
-   srvCellInfo->nRCGI.nRCellIdentity.bits_unused =4;
+      /* Initialize the F1Setup members */
+      DU_ALLOC(f1SetupReq->protocolIEs.list.array,f1SetupReq->protocolIEs.list.size);
+      if(f1SetupReq->protocolIEs.list.array == NULLP)
+      {
+        break;
+      }
+      for(ieIdx=0; ieIdx<elementCnt; ieIdx++)
+      {
+        DU_ALLOC(f1SetupReq->protocolIEs.list.array[ieIdx],\
+              sizeof(F1SetupRequestIEs_t));
+        if(f1SetupReq->protocolIEs.list.array[ieIdx] == NULLP)
+        {
+           break;
+        }
+      }
 
-   /*nRPCI*/
-   srvCellInfo->nRPCI = duCfgParam.srvdCellLst[0].duCellInfo.cellInfo.nrPci;
+      ieIdx = 0;
+      /*TransactionID*/
+      f1SetupReq->protocolIEs.list.array[ieIdx]->id = ProtocolIE_ID_id_TransactionID;
+      f1SetupReq->protocolIEs.list.array[ieIdx]->criticality = Criticality_reject;
+      f1SetupReq->protocolIEs.list.array[ieIdx]->value.present =\
+                                                              F1SetupRequestIEs__value_PR_TransactionID;
+      f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.TransactionID = \
+                                                                            TRANS_ID;
 
-   /*servedPLMNs*/
-   ieListCnt = 1;
-   srvCellInfo->servedPLMNs.list.count = ieListCnt;
-   srvCellInfo->servedPLMNs.list.size = ieListCnt*sizeof(ServedPLMNs_Item_t *);
-   DU_ALLOC(srvCellInfo->servedPLMNs.list.array,\
-        srvCellInfo->servedPLMNs.list.size);
-   if(srvCellInfo->servedPLMNs.list.array == NULLP)
-   {
-      return RFAILED;
-   }
-   for(ieIdx=0; ieIdx < ieListCnt; ieIdx++)
-   {
-      DU_ALLOC(srvCellInfo->servedPLMNs.list.array[ieIdx],\
-           sizeof(ServedPLMNs_Item_t));
-      if(srvCellInfo->servedPLMNs.list.array[ieIdx]== NULLP)
+      /*DU ID*/
+      ieIdx++;
+      f1SetupReq->protocolIEs.list.array[ieIdx]->id = ProtocolIE_ID_id_gNB_DU_ID;
+      f1SetupReq->protocolIEs.list.array[ieIdx]->criticality = Criticality_reject;
+      f1SetupReq->protocolIEs.list.array[ieIdx]->value.present = \
+                                                               F1SetupRequestIEs__value_PR_GNB_DU_ID;
+      f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.size =\
+                                                                            sizeof(uint8_t);
+
+      DU_ALLOC(f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.buf,\
+           f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.size);
+      if(f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.buf == \
+           NULLP)
       {
-        return RFAILED;
+        break;
       }
-   }
-   if(fillServedPlmns(&srvCellInfo->servedPLMNs))
-   {
-      return RFAILED;
-   }
 
-   /*nR Mode Info with FDD*/
-   srvCellInfo->nR_Mode_Info.present = NR_Mode_Info_PR_fDD;
-   DU_ALLOC(srvCellInfo->nR_Mode_Info.choice.fDD,\
-         sizeof(FDD_Info_t));
-   if(srvCellInfo->nR_Mode_Info.choice.fDD == NULLP)
-   {
-      return RFAILED;
-   }
-   if(fillNrFddInfo(&srvCellInfo->nR_Mode_Info))
-      return RFAILED;
+      f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.buf[0] =\
+         duCfgParam.duId;
 
-   /*Measurement timing Config*/
-   srvCellInfo->measurementTimingConfiguration.size = sizeof(uint8_t);
-   DU_ALLOC(srvCellInfo->measurementTimingConfiguration.\
-         buf,srvCellInfo->measurementTimingConfiguration.size);
-   if(srvCellInfo->measurementTimingConfiguration.buf == NULLP)
-   {
-      return RFAILED;
-   }
-   srvCellInfo->measurementTimingConfiguration.\
-        buf[0] = duCfgParam.srvdCellLst[0].duCellInfo.measTimeCfg;
+      /*DU Name*/
+      if(duCfgParam.duName != NULL)
+      {
+        ieIdx++;
+        f1SetupReq->protocolIEs.list.array[ieIdx]->id = ProtocolIE_ID_id_gNB_DU_Name;
+        f1SetupReq->protocolIEs.list.array[ieIdx]->criticality = Criticality_ignore;
+        f1SetupReq->protocolIEs.list.array[ieIdx]->value.present = F1SetupRequestIEs__value_PR_GNB_DU_Name;
+        f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_Name.size =\
+           strlen((char *)duCfgParam.duName);
+        DU_ALLOC(f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.\
+              GNB_DU_Name.buf, strlen((char *)duCfgParam.duName));
+        if(f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_Name.\
+              buf == NULLP)
+        {
+           break;
+        }
+        strcpy((char*)f1SetupReq->protocolIEs.list.array[ieIdx]->value.\
+              choice.GNB_DU_Name.buf,
+              (char*)&duCfgParam.duName);
 
-   return ROK;
-}
+      }
+
+      /*Served Cell list */
+      ieIdx++;
+      f1SetupReq->protocolIEs.list.array[ieIdx]->id = \
+                                                    ProtocolIE_ID_id_gNB_DU_Served_Cells_List;
+      f1SetupReq->protocolIEs.list.array[ieIdx]->criticality = Criticality_reject;
+      f1SetupReq->protocolIEs.list.array[ieIdx]->value.present = \
+                                                               F1SetupRequestIEs__value_PR_GNB_DU_Served_Cells_List;
+      duServedCell = &f1SetupReq->protocolIEs.list.\
+                    array[ieIdx]->value.choice.GNB_DU_Served_Cells_List;
+      if(BuildServedCellList(duServedCell))
+      {
+        break;
+      }
+      /*RRC Version*/
+      ieIdx++;
+      f1SetupReq->protocolIEs.list.array[ieIdx]->id = \
+                                                    ProtocolIE_ID_id_GNB_DU_RRC_Version ;
+      f1SetupReq->protocolIEs.list.array[ieIdx]->criticality = Criticality_reject;
+      f1SetupReq->protocolIEs.list.array[ieIdx]->value.present = \
+                                                               F1SetupRequestIEs__value_PR_RRC_Version;
+      rrcVer = &f1SetupReq->protocolIEs.list.array[ieIdx]->value.choice.RRC_Version;
+      if(BuildRrcVer(rrcVer))
+      {
+        break;
+      }
+      xer_fprint(stdout, &asn_DEF_F1AP_PDU, f1apMsg);
+
+      /* Encode the F1SetupRequest type as APER */
+      memset(encBuf, 0, ENC_BUF_MAX_LEN);
+      encBufSize = 0;
+      encRetVal = aper_encode(&asn_DEF_F1AP_PDU, 0, f1apMsg, PrepFinalEncBuf,\
+           encBuf);
+
+      /* Encode results */
+      if(encRetVal.encoded == ENCODE_FAIL)
+      {
+        DU_LOG("\nERROR  -->  F1AP : Could not encode F1SetupRequest structure (at %s)\n",\
+              encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
+        break;
+      }
+      else
+      {
+        DU_LOG("\nDEBUG   -->  F1AP : Created APER encoded buffer for F1SetupRequest\n");
+        for(ieIdx=0; ieIdx< encBufSize; ieIdx++)
+        {
+           printf("%x",encBuf[ieIdx]);
+        }
+      }
+
+      /* Sending msg */
+      if(sendF1APMsg() != ROK)
+      {
+        DU_LOG("\nERROR  -->  F1AP : Sending F1 Setup request failed");
+        break;
+      }
+
+      ret=ROK;
+      break;
+   }while(true);
+
+   FreeF1SetupReq(f1apMsg);
+
+   return ret;
+}/* End of BuildAndSendF1SetupReq */
 
 /*******************************************************************
  *
- * @brief Fills ServCellToModItem IE
+ * @brief Deallocating memory allocated for Served_Cells_To_Modify_Item_t
  *
  * @details
  *
- *    Function : fillServCellToModItem
+ *    Function : freeCellsToModifyItem 
  *
- *    Functionality: Fills ServCellToModItem IE
+ *    Functionality: Deallocating memory of variables allocated in
+ *                    BuildAndSendDUConfigUpdate function
  *
- * @params[in] Pointer to Served_Cells_To_Modify_Item_t *
+ * @params[in]  Served_Cells_To_Modify_Item_t *modifyItem
  *
- * @return ROK     - success
- *         RFAILED - failure
+ * @return ROK     - void
  *
- *****************************************************************/
+ * ****************************************************************/
 
-uint8_t fillServCellToModItem(Served_Cells_To_Modify_Item_t *modifyItem)
+void freeCellsToModifyItem(Served_Cells_To_Modify_Item_t *modifyItem)
 {
-   uint8_t ieIdx;
-
-   /*pLMN_Identity*/
-   modifyItem->oldNRCGI.pLMN_Identity.size = 3*sizeof(uint8_t);
-   DU_ALLOC(modifyItem->oldNRCGI.pLMN_Identity.buf,modifyItem->oldNRCGI.pLMN_Identity.size);
-   if(modifyItem->oldNRCGI.pLMN_Identity.buf == NULLP)
-   {
-      return RFAILED;
-   }
-   buildPlmnId(duCfgParam.srvdCellLst[0].duCellInfo.cellInfo.nrCgi.plmn,\
-        modifyItem->oldNRCGI.pLMN_Identity.buf);
-
-   /*nRCellIdentity*/
-   modifyItem->oldNRCGI.nRCellIdentity.size = 5*sizeof(uint8_t);
-   DU_ALLOC(modifyItem->oldNRCGI.nRCellIdentity.buf,\
-        modifyItem->oldNRCGI.nRCellIdentity.size);
-   if(modifyItem->oldNRCGI.nRCellIdentity.buf == NULLP)
-   {
-      return RFAILED;
-   }
-   for(ieIdx = 0; ieIdx < modifyItem->oldNRCGI.nRCellIdentity.size-1; ieIdx++)
+   uint8_t arrIdx=0,i=0;
+   if(modifyItem->oldNRCGI.pLMN_Identity.buf != NULLP)
    {
-      modifyItem->oldNRCGI.nRCellIdentity.buf[ieIdx] = 0;
+      if(modifyItem->oldNRCGI.nRCellIdentity.buf != NULLP)
+      {
+         if(modifyItem->served_Cell_Information.nRCGI.pLMN_Identity.buf != NULLP)
+         {
+            if(modifyItem->served_Cell_Information.nRCGI.nRCellIdentity.buf
+                  != NULLP)
+            {
+               if(modifyItem->served_Cell_Information.servedPLMNs.list.array\
+                     != NULLP)
+               {
+                  if(!modifyItem->served_Cell_Information.servedPLMNs.list.array[arrIdx])
+                  {
+                     if(modifyItem->served_Cell_Information.servedPLMNs.list.\
+                           array[arrIdx]->pLMN_Identity.buf != NULLP)
+                     {
+                        if(modifyItem->served_Cell_Information.servedPLMNs.list.\
+                              array[arrIdx]->iE_Extensions!= NULLP)
+                        {
+                           if(modifyItem->served_Cell_Information.servedPLMNs.list.\
+                                 array[arrIdx]->iE_Extensions->list.array != NULLP)
+                           {
+                              if(modifyItem->served_Cell_Information.servedPLMNs.list.\
+                                    array[arrIdx]->iE_Extensions->list.array[arrIdx])
+                              {
+                                 if(modifyItem->served_Cell_Information.servedPLMNs.list.array[arrIdx]->\
+                                       iE_Extensions->list.array[arrIdx]->extensionValue.choice.SliceSupportList.\
+                                       list.array !=NULLP)
+                                 {
+                                    if(modifyItem->served_Cell_Information.servedPLMNs.list.array[arrIdx]->\
+                                          iE_Extensions->list.array[arrIdx]->extensionValue.choice.SliceSupportList.\
+                                          list.array[arrIdx]!=NULLP)
+                                    {
+                                       if(modifyItem->served_Cell_Information.servedPLMNs.list.array[arrIdx]->\
+                                             iE_Extensions->list.array[arrIdx]->extensionValue.choice.SliceSupportList.\
+                                             list.array[arrIdx]->sNSSAI.sST.buf!=NULLP)
+                                       {
+                                          if(modifyItem->served_Cell_Information.servedPLMNs.list.array[arrIdx]->\
+                                                iE_Extensions->list.array[arrIdx]->extensionValue.choice.\
+                                                SliceSupportList.\
+                                                list.array[arrIdx]->sNSSAI.sD != NULLP)
+                                          {
+                                             if(modifyItem->served_Cell_Information.servedPLMNs.list.array[arrIdx]->\
+                                                   iE_Extensions->list.array[arrIdx]->extensionValue.\
+                                                   choice.SliceSupportList.\
+                                                   list.array[arrIdx]->sNSSAI.sD->buf!=NULLP)
+                                             {
+                                                if(modifyItem->served_Cell_Information.nR_Mode_Info.choice.fDD
+                                                      !=NULLP)
+                                                {
+                                                   if(modifyItem->served_Cell_Information.nR_Mode_Info.choice.\
+                                                         fDD->uL_NRFreqInfo.freqBandListNr.list.array!=NULLP)
+                                                   {
+                                                      if(modifyItem->served_Cell_Information.nR_Mode_Info.choice.\
+                                                            fDD->uL_NRFreqInfo.freqBandListNr.list.array[arrIdx]!=NULLP)
+                                                      {
+                                                         if(modifyItem->served_Cell_Information.nR_Mode_Info.choice.\
+                                                               fDD->dL_NRFreqInfo.freqBandListNr.list.array !=NULLP)
+                                                         {
+                                                            if(modifyItem->served_Cell_Information.nR_Mode_Info.\
+                                                                  choice.fDD->dL_NRFreqInfo.freqBandListNr.list.\
+                                                                  array[arrIdx]!= NULLP)
+                                                            {
+                                                               if(modifyItem->served_Cell_Information.\
+                                                                     measurementTimingConfiguration.buf !=NULLP)
+                                                               {
+                                                                  DU_FREE(modifyItem->served_Cell_Information.\
+                                                                        measurementTimingConfiguration.\
+                                                                        buf,modifyItem->served_Cell_Information.\
+                                                                        measurementTimingConfiguration.size);
+                                                               }
+                                                               DU_FREE(modifyItem->served_Cell_Information.\
+                                                                     nR_Mode_Info.choice.fDD->dL_NRFreqInfo.\
+                                                                     freqBandListNr.\
+                                                                     list.array[arrIdx],sizeof(FreqBandNrItem_t));
+                                                            }
+                                                            DU_FREE(modifyItem->served_Cell_Information.nR_Mode_Info\
+                                                                  .choice.fDD->dL_NRFreqInfo.freqBandListNr.list.array,\
+                                                                  modifyItem->served_Cell_Information.nR_Mode_Info.\
+                                                                  choice.fDD->dL_NRFreqInfo.freqBandListNr.list.size);
+                                                         }
+                                                         DU_FREE(modifyItem->served_Cell_Information.nR_Mode_Info.\
+                                                               choice.fDD->uL_NRFreqInfo.freqBandListNr.list.\
+                                                               array[arrIdx],sizeof(FreqBandNrItem_t));
+                                                      }
+                                                      DU_FREE(modifyItem->served_Cell_Information.nR_Mode_Info.\
+                                                            choice.\
+                                                            fDD->uL_NRFreqInfo.freqBandListNr.list.\
+                                                            array,modifyItem->served_Cell_Information.nR_Mode_Info.\
+                                                            choice.fDD->uL_NRFreqInfo.freqBandListNr.list.size);
+                                                   }
+                                                   DU_FREE(modifyItem->served_Cell_Information.nR_Mode_Info.choice.\
+                                                         fDD,sizeof(FDD_Info_t));
+                                                }
+                                                DU_FREE(modifyItem->served_Cell_Information.servedPLMNs.list.\
+                                                      array[arrIdx]->iE_Extensions->list.array[arrIdx]->extensionValue.\
+                                                      choice.SliceSupportList.\
+                                                      list.array[arrIdx]->sNSSAI.sD->buf,modifyItem->\
+                                                      served_Cell_Information.\
+                                                      servedPLMNs.list.array[arrIdx]->iE_Extensions->list.\
+                                                      array[arrIdx]->\
+                                                      extensionValue.choice.SliceSupportList.list.array[arrIdx]->\
+                                                      sNSSAI.sD->size);
+
+                                             }
+                                             DU_FREE(modifyItem->served_Cell_Information.servedPLMNs.list.\
+                                                   array[arrIdx]->\
+                                                   iE_Extensions->list.array[arrIdx]->extensionValue.choice.\
+                                                   SliceSupportList.\
+                                                   list.array[arrIdx]->sNSSAI.sD,sizeof(OCTET_STRING_t));
+                                          }
+                                          DU_FREE(modifyItem->served_Cell_Information.servedPLMNs.list.array[arrIdx]->\
+                                                iE_Extensions->list.array[arrIdx]->extensionValue.choice.\
+                                                SliceSupportList.\
+                                                list.array[arrIdx]->sNSSAI.sST.buf,modifyItem->served_Cell_Information.\
+                                                servedPLMNs.\
+                                                list.array[arrIdx]->iE_Extensions->list.array[arrIdx]->\
+                                                extensionValue.choice.\
+                                                SliceSupportList.list.array[arrIdx]->sNSSAI.sST.size);
+                                       }
+                                       DU_FREE(modifyItem->served_Cell_Information.servedPLMNs.list.array[arrIdx]->\
+                                             iE_Extensions->list.array[arrIdx]->extensionValue.choice.SliceSupportList.\
+                                             list.array[arrIdx],sizeof(SliceSupportItem_t));
+                                    }
+                                    DU_FREE(modifyItem->served_Cell_Information.servedPLMNs.list.array[arrIdx]->\
+                                          iE_Extensions->list.array[arrIdx]->extensionValue.choice.SliceSupportList.\
+                                          list.array,\
+                                          modifyItem->served_Cell_Information.servedPLMNs.list.array[arrIdx]->\
+                                          iE_Extensions->list.array[arrIdx]->extensionValue.choice.\
+                                          SliceSupportList.list.size);
+                                 }
+                              }
+                              for(i=0;i<modifyItem->served_Cell_Information.servedPLMNs.list.\
+                                    array[arrIdx]->iE_Extensions->list.count;i++)
+                              {
+                                 DU_FREE(modifyItem->served_Cell_Information.servedPLMNs.list.\
+                                       array[arrIdx]->iE_Extensions->list.array[i],\
+                                       sizeof(ServedPLMNs_ItemExtIEs_t ));
+                              }
+                              DU_FREE(modifyItem->served_Cell_Information.servedPLMNs.list.\
+                                    array[arrIdx]->iE_Extensions->list.array,modifyItem->served_Cell_Information.\
+                                    servedPLMNs.list.array[arrIdx]->iE_Extensions->list.size);
+                           }
+                           DU_FREE(modifyItem->served_Cell_Information.servedPLMNs.list.\
+                                 array[arrIdx]->iE_Extensions,sizeof(ProtocolExtensionContainer_4624P3_t));
+                        }
+                        DU_FREE(modifyItem->served_Cell_Information.servedPLMNs.list.\
+                              array[arrIdx]->pLMN_Identity.buf,
+                              modifyItem->served_Cell_Information.servedPLMNs.list.array[arrIdx]->pLMN_Identity.size);
+                     }
+                  }
+                  for(i=0;i<modifyItem->served_Cell_Information.servedPLMNs.list.count;i++)
+                  {
+                     if(modifyItem->served_Cell_Information.servedPLMNs.list.array[i]
+                           != NULLP)
+                     {
+                        DU_FREE(modifyItem->served_Cell_Information.servedPLMNs.list.array[i],\
+                              sizeof(ServedPLMNs_Item_t));
+                     }
+                  }
+                  DU_FREE(modifyItem->served_Cell_Information.servedPLMNs.list.array,\
+                        modifyItem->served_Cell_Information.servedPLMNs.list.size);
+               }
+               DU_FREE(modifyItem->served_Cell_Information.nRCGI.nRCellIdentity.buf,\
+                     modifyItem->served_Cell_Information.nRCGI.nRCellIdentity.size);
+            }
+            DU_FREE(modifyItem->served_Cell_Information.nRCGI.pLMN_Identity.buf,\
+                  modifyItem->served_Cell_Information.nRCGI.pLMN_Identity.size);
+         }
+         DU_FREE(modifyItem->oldNRCGI.nRCellIdentity.buf,\
+               modifyItem->oldNRCGI.nRCellIdentity.size);
+      }
+      DU_FREE(modifyItem->oldNRCGI.pLMN_Identity.buf,\
+            modifyItem->oldNRCGI.pLMN_Identity.size);  
    }
-   modifyItem->oldNRCGI.nRCellIdentity.buf[4] = 16;
-   modifyItem->oldNRCGI.nRCellIdentity.bits_unused = 4;
-
-   if(fillServedCellInfo(&modifyItem->served_Cell_Information))
-      return RFAILED;
-   else
-      return ROK;
 }
-
 /*******************************************************************
  *
- * @brief Builds ServCellToModList
+ * @brief Deallocating memory of BuildAndSendDUConfigUpdate
  *
  * @details
  *
- *    Function : buildServCellToModList
+ *    Function : FreeDUConfigUpdate
  *
- *    Functionality: Builds the serv cell to Mod List
+ *    Functionality: Deallocating memory of variables allocated in
+ *                    BuildAndSendDUConfigUpdate function
  *
- * @params[in] Pointer to Served_Cells_To_Modify_List_t *
+ * @params[in]  F1AP_PDU_t *f1apDuCfg
  *
- * @return ROK     - success
- *         RFAILED - failure
+ * @return ROK     - void
  *
- *****************************************************************/
-
-uint8_t buildServCellToModList(Served_Cells_To_Modify_List_t *cellsToModify)
+ * ****************************************************************/
+void FreeDUConfigUpdate(F1AP_PDU_t *f1apDuCfg)
 {
-   uint8_t ieListCnt, ieIdx;
-   Served_Cells_To_Modify_Item_t *modifyItem = NULLP;
+   uint8_t  ieIdx=0, cellModifyIdx=0, cellDeleteIdx=0;
+   GNBDUConfigurationUpdate_t *duCfgUpdate = NULLP;
+   Served_Cells_To_Modify_List_t  *cellsToModify=NULLP;
+   Served_Cells_To_Delete_List_t  *cellsToDelete=NULLP;
+   Served_Cells_To_Delete_Item_t  *deleteItem = NULLP;
+   Served_Cells_To_Delete_ItemIEs_t *deleteItemIe = NULLP;
 
-   ieListCnt = 1;
-   cellsToModify->list.count = ieListCnt;
-   cellsToModify->list.size = ieListCnt*sizeof(Served_Cells_To_Modify_ItemIEs_t *);
-   DU_ALLOC(cellsToModify->list.array,cellsToModify->list.size);
-   if(cellsToModify->list.array == NULLP)
-   {
-      return RFAILED;
-   }
-   for(ieIdx=0; ieIdx< ieListCnt; ieIdx++)
+   if(f1apDuCfg != NULLP)
    {
-      DU_ALLOC(cellsToModify->list.array[ieIdx],sizeof(Served_Cells_To_Modify_ItemIEs_t));
-      if(cellsToModify->list.array[ieIdx] == NULLP)
+      if(f1apDuCfg->choice.initiatingMessage != NULLP)
       {
-        return RFAILED;
+         duCfgUpdate = &f1apDuCfg->choice.initiatingMessage->\
+                       value.choice.GNBDUConfigurationUpdate;
+         if(duCfgUpdate->protocolIEs.list.array != NULLP)
+         {
+            for(ieIdx=0; ieIdx<duCfgUpdate->protocolIEs.list.count; ieIdx++)
+            {
+               if(duCfgUpdate->protocolIEs.list.array[ieIdx] != NULLP)
+               {
+                  switch(duCfgUpdate->protocolIEs.list.array[ieIdx]->id)
+                  {
+                     case ProtocolIE_ID_id_Served_Cells_To_Modify_List:
+                        {
+                           cellsToModify = &duCfgUpdate->protocolIEs.list.array[ieIdx]->\
+                                           value.choice.Served_Cells_To_Modify_List;
+                           if(cellsToModify->list.array != NULLP)
+                           {
+                              for(cellModifyIdx=0; cellModifyIdx<cellsToModify->list.count ;cellModifyIdx++)
+                              {
+                                 if(cellsToModify->list.array[cellModifyIdx] != NULLP)
+                                 {
+                                    freeCellsToModifyItem(&cellsToModify->list.array[cellModifyIdx]->value.choice.\
+                                          Served_Cells_To_Modify_Item);
+                                    DU_FREE(cellsToModify->list.array[cellModifyIdx],\
+                                          sizeof(Served_Cells_To_Modify_ItemIEs_t));
+                                 }
+                              }
+                              DU_FREE(cellsToModify->list.array,cellsToModify->list.size);
+                           }
+                           break;
+                        }
+                     case ProtocolIE_ID_id_Served_Cells_To_Delete_List:
+                        {
+                           cellsToDelete = &duCfgUpdate->protocolIEs.list.array[ieIdx]->\
+                                           value.choice.Served_Cells_To_Delete_List;
+                           if(cellsToDelete->list.array != NULLP)
+                           {
+                              for(cellDeleteIdx=0; cellDeleteIdx<cellsToDelete->list.count ;cellDeleteIdx++)
+                              {
+                                 if(cellsToDelete->list.array[cellDeleteIdx] != NULLP)
+                                 {
+                                    deleteItemIe = ((Served_Cells_To_Delete_ItemIEs_t*)\
+                                          cellsToDelete->list.array[cellDeleteIdx]);
+                                    deleteItem=&deleteItemIe->value.choice.Served_Cells_To_Delete_Item;
+                                    DU_FREE(deleteItem->oldNRCGI.pLMN_Identity.buf,\
+                                          deleteItem->oldNRCGI.pLMN_Identity.size); 
+                                    DU_FREE(deleteItem->oldNRCGI.nRCellIdentity.buf,\
+                                          deleteItem->oldNRCGI.nRCellIdentity.size);
+                                    DU_FREE(cellsToDelete->list.array[cellDeleteIdx],\
+                                          sizeof(Served_Cells_To_Delete_ItemIEs_t));
+                                 }
+                              }
+                              DU_FREE(cellsToDelete->list.array,cellsToDelete->list.size);
+                           }
+
+                           break;
+                        }
+                     case GNBDUConfigurationUpdateIEs__value_PR_GNB_DU_ID:
+                        {
+                           DU_FREE(duCfgUpdate->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.buf,\
+                                 duCfgUpdate->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.size);
+                           break;
+                        }
+                  }
+                  DU_FREE(duCfgUpdate->protocolIEs.list.array[ieIdx],\
+                        sizeof(GNBDUConfigurationUpdateIEs_t));
+               }
+            }
+            DU_FREE(duCfgUpdate->protocolIEs.list.array,duCfgUpdate->protocolIEs.list.size);
+         }
+         DU_FREE(f1apDuCfg->choice.initiatingMessage,sizeof(InitiatingMessage_t));
       }
+      DU_FREE(f1apDuCfg, (Size)sizeof(F1AP_PDU_t));
    }
-   cellsToModify->list.array[0]->id = ProtocolIE_ID_id_Served_Cells_To_Modify_Item;
-   cellsToModify->list.array[0]->criticality = Criticality_reject;
-   cellsToModify->list.array[0]->value.present =\
-      Served_Cells_To_Modify_ItemIEs__value_PR_Served_Cells_To_Modify_Item;
-   modifyItem=&cellsToModify->list.array[0]->value.choice.Served_Cells_To_Modify_Item;
-
-   if(fillServCellToModItem(modifyItem))
-      return RFAILED;
-   else
-      return ROK;
 }
 
 /*******************************************************************
  *
- * @brief Builds and sends the DUConfigUpdate
+ * @brief Fills Served Plmns required in ServCellInfo IE
  *
  * @details
  *
- *    Function : BuildAndSendDUConfigUpdate
+ *    Function : fillServedPlmns
  *
- *    Functionality: Constructs the DU Update message and sends
- *                   it to the CU through SCTP.
+ *    Functionality: Fills Served Plmns required in ServCellInfo IE
  *
- * @params[in] void **buf,Buffer to which encoded pattern is written into
- * @params[in] int *size,size of buffer
+ * @params[in] Pointer to ServedPLMNs_List_t *
  *
  * @return ROK     - success
  *         RFAILED - failure
  *
- * ****************************************************************/
-uint8_t BuildAndSendDUConfigUpdate()
+ *****************************************************************/
+
+uint8_t fillServedPlmns(ServedPLMNs_List_t *servedPlmn)
 {
-   uint8_t ret, ieIdx, elementCnt;
-   F1AP_PDU_t                 *f1apDuCfg = NULLP;
-   GNBDUConfigurationUpdate_t *duCfgUpdate = NULLP;
-   asn_enc_rval_t encRetVal;     /* Encoder return value */
-   memset(&encRetVal, 0, sizeof(asn_enc_rval_t));
-   ret= RFAILED;
+   uint8_t ieIdx, ieListCnt;
 
-   while(true)
+   servedPlmn->list.array[0]->pLMN_Identity.size = 3*sizeof(uint8_t);
+   DU_ALLOC(servedPlmn->list.array[0]->pLMN_Identity.buf, servedPlmn->list.\
+        array[0]->pLMN_Identity.size);
+   if(servedPlmn->list.array[0]->pLMN_Identity.buf == NULLP)
    {
-      DU_LOG("\nINFO   -->  F1AP : Building DU config update\n");
-      /* Allocate the memory for F1DuCfg */
-      DU_ALLOC(f1apDuCfg, sizeof(F1AP_PDU_t));
-      if(f1apDuCfg == NULLP)
-      {
-        DU_LOG("\nERROR  -->  F1AP : Memory allocation for F1AP-PDU failed");
-        break;
-      }
-
-      f1apDuCfg->present = F1AP_PDU_PR_initiatingMessage;
-      DU_ALLOC(f1apDuCfg->choice.initiatingMessage,sizeof(InitiatingMessage_t));
-      if(f1apDuCfg->choice.initiatingMessage == NULLP)
-      {
-        DU_LOG("\nERROR  -->  F1AP : Memory allocation for F1AP-PDU failed");
-        break;
-      }
-
-      f1apDuCfg->choice.initiatingMessage->procedureCode = \
-                                                          ProcedureCode_id_gNBDUConfigurationUpdate;
-      f1apDuCfg->choice.initiatingMessage->criticality = Criticality_reject;
-      f1apDuCfg->choice.initiatingMessage->value.present = \
-                                                          InitiatingMessage__value_PR_GNBDUConfigurationUpdate;
-      duCfgUpdate = &f1apDuCfg->choice.initiatingMessage->value.\
-                   choice.GNBDUConfigurationUpdate;
-      elementCnt = 3;
-      duCfgUpdate->protocolIEs.list.count = elementCnt;
-      duCfgUpdate->protocolIEs.list.size = \
-                                          elementCnt * sizeof(GNBDUConfigurationUpdateIEs_t*);
-
-      /* Initialize the F1Setup members */
-      DU_ALLOC(duCfgUpdate->protocolIEs.list.array,duCfgUpdate->protocolIEs.list.size);
-      if(duCfgUpdate->protocolIEs.list.array == NULLP)
-      {
-        DU_LOG("ERROR  -->  F1AP : Memory allocation for F1RequestIEs failed");
-        break;
-      }
-      for(ieIdx=0; ieIdx<elementCnt; ieIdx++)
-      {
-        DU_ALLOC(duCfgUpdate->protocolIEs.list.array[ieIdx],sizeof(GNBDUConfigurationUpdateIEs_t));
-        if(duCfgUpdate->protocolIEs.list.array[ieIdx] == NULLP)
-        {
-           break;
-        }
-      }
-
-      /*TransactionID*/
-      ieIdx = 0;
-      duCfgUpdate->protocolIEs.list.array[ieIdx]->id=ProtocolIE_ID_id_TransactionID;
-      duCfgUpdate->protocolIEs.list.array[ieIdx]->criticality= Criticality_reject;
-      duCfgUpdate->protocolIEs.list.array[ieIdx]->value.present = \
-         GNBDUConfigurationUpdateIEs__value_PR_TransactionID;
-      duCfgUpdate->protocolIEs.list.array[ieIdx]->value.choice.TransactionID = TRANS_ID;
-
-      /*Served Cell to Modify */
-      ieIdx++;
-      duCfgUpdate->protocolIEs.list.array[ieIdx]->id = \
-                                                     ProtocolIE_ID_id_Served_Cells_To_Modify_List;
-      duCfgUpdate->protocolIEs.list.array[ieIdx]->criticality =Criticality_reject;
-      duCfgUpdate->protocolIEs.list.array[ieIdx]->value.present = \
-        GNBDUConfigurationUpdateIEs__value_PR_Served_Cells_To_Modify_List;
-      if(buildServCellToModList(&duCfgUpdate->protocolIEs.list.array[ieIdx]->value.choice.\
-        Served_Cells_To_Modify_List))
-         break;
-
-      // NOTE :GNB DU SYS INFO:MIB AND SIB1 INFORMATION TO BE BUILT AND FILLED HERE
-      /*GNB DU ID */
-      ieIdx++;
-      duCfgUpdate->protocolIEs.list.array[ieIdx]->id = ProtocolIE_ID_id_gNB_DU_ID;
-      duCfgUpdate->protocolIEs.list.array[ieIdx]->criticality = Criticality_reject;
-      duCfgUpdate->protocolIEs.list.array[ieIdx]->value.present = \
-       GNBDUConfigurationUpdateIEs__value_PR_GNB_DU_ID;
-      duCfgUpdate->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.size = sizeof(uint8_t);
-      DU_ALLOC(duCfgUpdate->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.buf,\
-           duCfgUpdate->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.size);
-      if(duCfgUpdate->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.buf == NULLP)
-      {
-        break;
-      }
-      duCfgUpdate->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.buf[0] = duCfgParam.duId;
-
-      xer_fprint(stdout, &asn_DEF_F1AP_PDU, f1apDuCfg);
-
-      /* Encode the DU Config Update type as APER */
-      memset((uint8_t *)encBuf, 0, ENC_BUF_MAX_LEN);
-      encBufSize = 0;
-      encRetVal = aper_encode(&asn_DEF_F1AP_PDU, 0, f1apDuCfg, PrepFinalEncBuf, encBuf);
+      return RFAILED;
+   }
+   buildPlmnId(duCfgParam.srvdCellLst[0].duCellInfo.cellInfo.plmn[0],\
+        servedPlmn->list.array[0]->pLMN_Identity.buf);
+   DU_ALLOC(servedPlmn->list.array[0]->iE_Extensions,sizeof(ProtocolExtensionContainer_4624P3_t));
+   if(servedPlmn->list.array[0]->iE_Extensions == NULLP)
+   {
+      return RFAILED;
+   }
 
-      /* Checking encode results */
-      if(encRetVal.encoded == ENCODE_FAIL)
-      {
-        DU_LOG("ERROR  -->  F1AP : Could not encode DUConfigUpdate structure (at %s)\n",\
-        encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
-        break;
-      }
-      else
-      {
-        DU_LOG("\nDEBUG   -->  F1AP : Created APER encoded buffer for DUConfigUpdate\n");
-        for(ieIdx =0; ieIdx < encBufSize; ieIdx++)
-        {
-           printf("%x",encBuf[ieIdx]);
-        }
-      }
-      /* Sending msg */
-      if(SendF1APMsg(DU_APP_MEM_REGION, DU_POOL) != ROK)
+   ieListCnt=1;
+   servedPlmn->list.array[0]->iE_Extensions->list.count = ieListCnt;
+   servedPlmn->list.array[0]->iE_Extensions->list.size = ieListCnt *sizeof(ServedPLMNs_ItemExtIEs_t *);
+   DU_ALLOC(servedPlmn->list.array[0]->iE_Extensions->list.array,servedPlmn->list.array[0]->\
+        iE_Extensions->list.size);
+   if(servedPlmn->list.array[0]->iE_Extensions->list.array == NULLP)
+   {
+      return RFAILED;
+   }
+   for(ieIdx=0;ieIdx<ieListCnt;ieIdx++)
+   {
+      DU_ALLOC(servedPlmn->list.array[0]->iE_Extensions->list.array[ieIdx],\
+           sizeof(ServedPLMNs_ItemExtIEs_t));
+      if(servedPlmn->list.array[0]->iE_Extensions->list.array[ieIdx] == NULLP)
       {
-        DU_LOG("\nERROR  -->  F1AP : Sending GNB-DU Config Update failed");
-        break;
+        return RFAILED;
       }
-
-      ret = ROK;
-      break;
    }
-   FreeDUConfigUpdate(f1apDuCfg);
+   //plmnIeExt = servedPlmn->list.array[0]->iE_Extensions; 
+   servedPlmn->list.array[0]->iE_Extensions->list.array[0]->id =ProtocolIE_ID_id_TAISliceSupportList;
+   servedPlmn->list.array[0]->iE_Extensions->list.array[0]->criticality = Criticality_ignore;
+   servedPlmn->list.array[0]->iE_Extensions->list.array[0]->extensionValue.present = \
+      ServedPLMNs_ItemExtIEs__extensionValue_PR_SliceSupportList;
+   servedPlmn->list.array[0]->iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
+      list.count = 1;
+   servedPlmn->list.array[0]->\
+      iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
+      list.size = sizeof(SliceSupportItem_t *);
+   DU_ALLOC(servedPlmn->list.array[0]->\
+        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
+        list.array,servedPlmn->list.array[0]->\
+        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.list.size);
+   if(servedPlmn->list.array[0]->\
+        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
+        list.array == NULLP)
+   {
+      return RFAILED;
+   }
 
-   return ret;
+   DU_ALLOC(servedPlmn->list.array[0]->\
+        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
+        list.array[0],sizeof( SliceSupportItem_t));
+   if(servedPlmn->list.array[0]->\
+        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
+        list.array[0] == NULLP)
+   {
+      return RFAILED;
+   }
+   servedPlmn->list.array[0]->\
+      iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
+      list.array[0]->sNSSAI.sST.size = sizeof(uint8_t);
+   DU_ALLOC(servedPlmn->list.array[0]->\
+        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
+        list.array[0]->sNSSAI.sST.buf,servedPlmn->list.array[0]->\
+        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.list.array[0]->sNSSAI.sST.size);
+   if(servedPlmn->list.array[0]->\
+        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
+        list.array[0]->sNSSAI.sST.buf == NULLP)
+   {
+      return RFAILED;
+   }
+   servedPlmn->list.array[0]->\
+      iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
+      list.array[0]->sNSSAI.sST.buf[0] = 3;
+   DU_ALLOC(servedPlmn->list.array[0]->\
+        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
+        list.array[0]->sNSSAI.sD,sizeof(OCTET_STRING_t));
+   if(servedPlmn->list.array[0]->\
+        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
+        list.array[0]->sNSSAI.sD == NULLP)
+   {
+      return RFAILED;
+   }
+   servedPlmn->list.array[0]->\
+      iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
+      list.array[0]->sNSSAI.sD->size = 3*sizeof(uint8_t);
+   DU_ALLOC(servedPlmn->list.array[0]->\
+        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
+        list.array[0]->sNSSAI.sD->buf,servedPlmn->list.array[0]->\
+        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
+        list.array[0]->sNSSAI.sD->size);
+   if(servedPlmn->list.array[0]->\
+        iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
+        list.array[0]->sNSSAI.sD->buf == NULLP)
+   {
+      return RFAILED;
+   }
+   servedPlmn->list.array[0]->\
+      iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
+      list.array[0]->sNSSAI.sD->buf[0] = 3;
+   servedPlmn->list.array[0]->\
+      iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
+      list.array[0]->sNSSAI.sD->buf[1] = 6;
+   servedPlmn->list.array[0]->\
+      iE_Extensions->list.array[0]->extensionValue.choice.SliceSupportList.\
+      list.array[0]->sNSSAI.sD->buf[2] = 9;
+   return ROK;
 }
 
-
 /*******************************************************************
  *
- * @brief free the ULRRCMessageTransfer
+ * @brief Fills Nr Fdd Info required in ServCellInfo IE
  *
  * @details
  *
- *    Function : FreeULRRCMessageTransfer
+ *    Function : fillNrFddInfo
  *
- *    Functionality: Deallocating the memory of variable allocated in
- *                      FreeULRRCMessageTransfer
+ *    Functionality: Fills Nr Fdd Info required in ServCellInfo IE
  *
- * @params[in]
+ * @params[in] Pointer to NR_Mode_Info_t *
  *
- * @return ROK     - void
+ * @return ROK     - success
+ *         RFAILED - failure
  *
- ******************************************************************/
-void FreeULRRCMessageTransfer( F1AP_PDU_t *f1apMsg)
-{
-   uint8_t idx1;
-   ULRRCMessageTransfer_t  *ulRRCMsg;
+ *****************************************************************/
 
-   if(f1apMsg != NULLP)
-   { 
-      if(f1apMsg->choice.initiatingMessage != NULLP)
-      {
-        ulRRCMsg = &f1apMsg->choice.initiatingMessage->value.choice.ULRRCMessageTransfer;
-        if(ulRRCMsg->protocolIEs.list.array != NULLP)
-        {
-           for(idx1=0;idx1<ulRRCMsg->protocolIEs.list.count;idx1++)
-           {
-              if(ulRRCMsg->protocolIEs.list.array[idx1] != NULLP)
-              {
-                 if(ulRRCMsg->protocolIEs.list.array[idx1]->value.present ==
-                       ULRRCMessageTransferIEs__value_PR_RRCContainer)
-                 {
-                    DU_FREE(ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.RRCContainer.buf,
-                          ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.RRCContainer.size);
-                 }
-                 DU_FREE(ulRRCMsg->protocolIEs.list.array[idx1],sizeof(ULRRCMessageTransferIEs_t));
-              }
-           }
-           DU_FREE(ulRRCMsg->protocolIEs.list.array,ulRRCMsg->protocolIEs.list.size );
-        }
-        DU_FREE(f1apMsg->choice.initiatingMessage,sizeof(InitiatingMessage_t));
-      }
-      DU_FREE(f1apMsg,sizeof(F1AP_PDU_t));
+uint8_t fillNrFddInfo(NR_Mode_Info_t *nrFdd)
+{
+   nrFdd->choice.fDD->uL_NRFreqInfo.nRARFCN = duCfgParam.srvdCellLst[0].duCellInfo.\
+      f1Mode.mode.fdd.ulNrFreqInfo.nrArfcn;
+   nrFdd->choice.fDD->uL_NRFreqInfo.freqBandListNr.list.count = 1;
+   nrFdd->choice.fDD->uL_NRFreqInfo.freqBandListNr.list.size = sizeof(FreqBandNrItem_t*);
+   DU_ALLOC(nrFdd->choice.fDD->uL_NRFreqInfo.freqBandListNr.list.\
+        array, nrFdd->choice.fDD->uL_NRFreqInfo.freqBandListNr.list.size);
+   if(nrFdd->choice.fDD->uL_NRFreqInfo.freqBandListNr.list.array == NULLP)
+   {
+      return RFAILED;
+   }
+   DU_ALLOC(nrFdd->choice.fDD->uL_NRFreqInfo.freqBandListNr.list.array[0], \
+      sizeof(FreqBandNrItem_t));
+   if(nrFdd->choice.fDD->uL_NRFreqInfo.freqBandListNr.list.array[0] == NULLP)
+   {
+      return RFAILED;
+   }
+   nrFdd->choice.fDD->uL_NRFreqInfo.freqBandListNr.list.array[0]->freqBandIndicatorNr = \
+      duCfgParam.srvdCellLst[0].duCellInfo.f1Mode.mode.fdd.ulNrFreqInfo.\
+      freqBand[0].nrFreqBand;
+   nrFdd->choice.fDD->uL_NRFreqInfo.freqBandListNr.list.array[0]->supportedSULBandList.list.count=0;
+   nrFdd->choice.fDD->dL_NRFreqInfo.nRARFCN = duCfgParam.srvdCellLst[0].duCellInfo.f1Mode.mode.fdd.\
+      dlNrFreqInfo.nrArfcn;
+   nrFdd->choice.fDD->dL_NRFreqInfo.freqBandListNr.list.count = 1;
+   nrFdd->choice.fDD->dL_NRFreqInfo.freqBandListNr.list.size = sizeof(FreqBandNrItem_t *);
+   DU_ALLOC(nrFdd->choice.fDD->dL_NRFreqInfo.freqBandListNr.list.array,nrFdd->\
+        choice.fDD->dL_NRFreqInfo.freqBandListNr.list.size);
+   if(nrFdd->choice.fDD->dL_NRFreqInfo.freqBandListNr.list.array == NULLP)
+   {
+      return RFAILED;
+   }
+   DU_ALLOC(nrFdd->choice.fDD->dL_NRFreqInfo.freqBandListNr.list.array[0],\
+        sizeof(FreqBandNrItem_t));
+   if(nrFdd->choice.fDD->dL_NRFreqInfo.freqBandListNr.list.array[0] == NULLP)
+   {
+      return RFAILED;
    }
+   nrFdd->choice.fDD->dL_NRFreqInfo.freqBandListNr.list.array[0]->freqBandIndicatorNr = \
+      duCfgParam.srvdCellLst[0].duCellInfo.f1Mode.mode.fdd.dlNrFreqInfo.\
+      freqBand[0].nrFreqBand;
+   nrFdd->choice.fDD->dL_NRFreqInfo.freqBandListNr.list.array[0]->supportedSULBandList.list.count=0;
+   
+   /*Transmission Bandwidth*/
+   nrFdd->choice.fDD->uL_Transmission_Bandwidth.nRSCS = duCfgParam.srvdCellLst[0].duCellInfo.\
+      f1Mode.mode.fdd.ulTxBw.nrScs;
+   nrFdd->choice.fDD->uL_Transmission_Bandwidth.nRNRB = duCfgParam.srvdCellLst[0].duCellInfo.\
+      f1Mode.mode.fdd.ulTxBw.nrb;
+   nrFdd->choice.fDD->dL_Transmission_Bandwidth.nRSCS = duCfgParam.srvdCellLst[0].duCellInfo.\
+      f1Mode.mode.fdd.dlTxBw.nrScs;
+   nrFdd->choice.fDD->dL_Transmission_Bandwidth.nRNRB = duCfgParam.srvdCellLst[0].duCellInfo.\
+      f1Mode.mode.fdd.dlTxBw.nrb;
+
+   return ROK;
 }
+
 /*******************************************************************
  *
- * @brief Builds and sends the ULRRCMessageTransfer 
+ * @brief Fills ServCellInfo IE
  *
  * @details
  *
- *    Function : BuildAndSendULRRCMessageTransfer
+ *    Function : fillServedCellInfo
  *
- *    Functionality: Constructs the UL RRC Message Transfer and sends
- *                   it to the CU through SCTP.
+ *    Functionality: Fills ServCellInfo
  *
- * @params[in] 
+ * @params[in] Pointer to Served_Cell_Information_t *
  *
  * @return ROK     - success
  *         RFAILED - failure
  *
- * ****************************************************************/
-uint8_t BuildAndSendULRRCMessageTransfer(DuUeCb  ueCb, uint8_t lcId, \
-      uint16_t msgLen, uint8_t *rrcMsg)
+ *****************************************************************/
+
+uint8_t fillServedCellInfo(Served_Cell_Information_t *srvCellInfo)
 {
-   uint8_t   elementCnt =0;
-   uint8_t   idx1 =0;
-   uint8_t   idx =0;
-   F1AP_PDU_t                  *f1apMsg = NULLP;
-   ULRRCMessageTransfer_t      *ulRRCMsg = NULLP;
-   asn_enc_rval_t              encRetVal;        /* Encoder return value */
-   uint8_t ret =RFAILED;
-   
-   memset(&encRetVal, 0, sizeof(asn_enc_rval_t));
+   uint8_t tmp, ieIdx, ieListCnt;
 
-   while(true)
+   /*nRCGI*/
+   srvCellInfo->nRCGI.pLMN_Identity.size =3*sizeof(uint8_t);
+   DU_ALLOC(srvCellInfo->nRCGI.pLMN_Identity.buf,\
+        srvCellInfo->nRCGI.pLMN_Identity.size);
+   if(srvCellInfo->nRCGI.pLMN_Identity.buf == NULLP)
    {
-      DU_LOG("\n INFO   -->  F1AP : Building UL RRC Message Transfer Message\n");
+      return RFAILED;
+   }
+   buildPlmnId(duCfgParam.srvdCellLst[0].duCellInfo.cellInfo.nrCgi.plmn,\
+        srvCellInfo->nRCGI.pLMN_Identity.buf);
+   srvCellInfo->nRCGI.nRCellIdentity.size =5*sizeof(uint8_t);
+   DU_ALLOC(srvCellInfo->nRCGI.nRCellIdentity.buf,\
+        srvCellInfo->nRCGI.nRCellIdentity.size);
+   if(srvCellInfo->nRCGI.nRCellIdentity.buf == NULLP)
+   {
+      return RFAILED;
+   }
+   for (tmp = 0 ; tmp < srvCellInfo->\
+        nRCGI.nRCellIdentity.size-1 ; tmp++)
+   {
+      srvCellInfo->nRCGI.nRCellIdentity.buf[tmp] = 0;
+   }
+   srvCellInfo->nRCGI.nRCellIdentity.buf[4] = 16;
+   srvCellInfo->nRCGI.nRCellIdentity.bits_unused =4;
 
-      DU_ALLOC(f1apMsg, sizeof(F1AP_PDU_t));
-      if(f1apMsg == NULLP)
-      {
-        DU_LOG(" ERROR  -->  F1AP : Memory allocation for F1AP-PDU failed");
-        break;
-      }
-      f1apMsg->present = F1AP_PDU_PR_initiatingMessage;
-      DU_ALLOC(f1apMsg->choice.initiatingMessage,sizeof(InitiatingMessage_t));
-      if(f1apMsg->choice.initiatingMessage == NULLP)
-      {
-        DU_LOG(" ERROR  -->  F1AP : Memory allocation for      F1AP-PDU failed");
-        break;
-      }
-      f1apMsg->choice.initiatingMessage->procedureCode = ProcedureCode_id_ULRRCMessageTransfer;
-      f1apMsg->choice.initiatingMessage->criticality = Criticality_ignore;
-      f1apMsg->choice.initiatingMessage->value.present = \
-                                                        InitiatingMessage__value_PR_ULRRCMessageTransfer;
-      ulRRCMsg =
-        &f1apMsg->choice.initiatingMessage->value.choice.ULRRCMessageTransfer;
-      elementCnt = 4;
-      ulRRCMsg->protocolIEs.list.count = elementCnt;
-      ulRRCMsg->protocolIEs.list.size = \
-                                       elementCnt * sizeof(ULRRCMessageTransferIEs_t *);
+   /*nRPCI*/
+   srvCellInfo->nRPCI = duCfgParam.srvdCellLst[0].duCellInfo.cellInfo.nrPci;
 
-      /* Initialize the F1Setup members */
-      DU_ALLOC(ulRRCMsg->protocolIEs.list.array, ulRRCMsg->protocolIEs.list.size);
-      if(ulRRCMsg->protocolIEs.list.array == NULLP)
-      {
-        DU_LOG(" ERROR  -->  F1AP : Memory allocation for UL RRC MessageTransferIEs failed");
-        break;
-      }
-      for(idx=0; idx<elementCnt; idx++)
+   /*servedPLMNs*/
+   ieListCnt = 1;
+   srvCellInfo->servedPLMNs.list.count = ieListCnt;
+   srvCellInfo->servedPLMNs.list.size = ieListCnt*sizeof(ServedPLMNs_Item_t *);
+   DU_ALLOC(srvCellInfo->servedPLMNs.list.array,\
+        srvCellInfo->servedPLMNs.list.size);
+   if(srvCellInfo->servedPLMNs.list.array == NULLP)
+   {
+      return RFAILED;
+   }
+   for(ieIdx=0; ieIdx < ieListCnt; ieIdx++)
+   {
+      DU_ALLOC(srvCellInfo->servedPLMNs.list.array[ieIdx],\
+           sizeof(ServedPLMNs_Item_t));
+      if(srvCellInfo->servedPLMNs.list.array[ieIdx]== NULLP)
       {
-        DU_ALLOC(ulRRCMsg->protocolIEs.list.array[idx],sizeof(ULRRCMessageTransferIEs_t));
-        if(ulRRCMsg->protocolIEs.list.array[idx] == NULLP)
-        {
-           break;
-        }
+        return RFAILED;
       }
+   }
+   if(fillServedPlmns(&srvCellInfo->servedPLMNs))
+   {
+      return RFAILED;
+   }
 
-      idx1 = 0;
+   /*nR Mode Info with FDD*/
+   srvCellInfo->nR_Mode_Info.present = NR_Mode_Info_PR_fDD;
+   DU_ALLOC(srvCellInfo->nR_Mode_Info.choice.fDD,\
+         sizeof(FDD_Info_t));
+   if(srvCellInfo->nR_Mode_Info.choice.fDD == NULLP)
+   {
+      return RFAILED;
+   }
+   if(fillNrFddInfo(&srvCellInfo->nR_Mode_Info))
+      return RFAILED;
 
-      /*GNB CU UE F1AP ID*/
-      ulRRCMsg->protocolIEs.list.array[idx1]->id = ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID;
-      ulRRCMsg->protocolIEs.list.array[idx1]->criticality = Criticality_reject;
-      ulRRCMsg->protocolIEs.list.array[idx1]->value.present = \
-                                                             ULRRCMessageTransferIEs__value_PR_GNB_CU_UE_F1AP_ID;
-      ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.GNB_CU_UE_F1AP_ID = ueCb.gnbCuUeF1apId;
+   /*Measurement timing Config*/
+   srvCellInfo->measurementTimingConfiguration.size = sizeof(uint8_t);
+   DU_ALLOC(srvCellInfo->measurementTimingConfiguration.\
+         buf,srvCellInfo->measurementTimingConfiguration.size);
+   if(srvCellInfo->measurementTimingConfiguration.buf == NULLP)
+   {
+      return RFAILED;
+   }
+   srvCellInfo->measurementTimingConfiguration.\
+        buf[0] = duCfgParam.srvdCellLst[0].duCellInfo.measTimeCfg;
 
-      /*GNB DU UE F1AP ID*/
-      idx1++;
-      ulRRCMsg->protocolIEs.list.array[idx1]->id = ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID;
-      ulRRCMsg->protocolIEs.list.array[idx1]->criticality = Criticality_reject;
-      ulRRCMsg->protocolIEs.list.array[idx1]->value.present = \
-                                                             ULRRCMessageTransferIEs__value_PR_GNB_DU_UE_F1AP_ID;
-      ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.GNB_DU_UE_F1AP_ID = ueCb.gnbDuUeF1apId;
+   return ROK;
+}
 
-      /*SRBID*/
-      idx1++;
-      ulRRCMsg->protocolIEs.list.array[idx1]->id = ProtocolIE_ID_id_SRBID;
-      ulRRCMsg->protocolIEs.list.array[idx1]->criticality = Criticality_reject;
-      ulRRCMsg->protocolIEs.list.array[idx1]->value.present = \
-                                                             ULRRCMessageTransferIEs__value_PR_SRBID;
-      ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.SRBID = lcId;
+/*******************************************************************
+ *
+ * @brief Fills ServCellToModItem IE
+ *
+ * @details
+ *
+ *    Function : fillServCellToModItem
+ *
+ *    Functionality: Fills ServCellToModItem IE
+ *
+ * @params[in] Pointer to Served_Cells_To_Modify_Item_t *
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ *****************************************************************/
 
-      /*RRCContainer*/
-      idx1++;
-      ulRRCMsg->protocolIEs.list.array[idx1]->id  = ProtocolIE_ID_id_RRCContainer;
-      ulRRCMsg->protocolIEs.list.array[idx1]->criticality = Criticality_reject;
-      ulRRCMsg->protocolIEs.list.array[idx1]->value.present = \
-                                                             ULRRCMessageTransferIEs__value_PR_RRCContainer;
-      ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.RRCContainer.size = msgLen;
-      DU_ALLOC(ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.RRCContainer.buf,
-           ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.RRCContainer.size)
-      if(!ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.RRCContainer.buf)
-      {
-        DU_LOG(" ERROR  -->  F1AP : Memory allocation for BuildAndSendULRRCMessageTransfer failed");
-        break;
-      }
-      memset(ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.RRCContainer.buf, 0, msgLen);
-      memcpy(ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.RRCContainer.buf, \
-           rrcMsg, ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.RRCContainer.size);
-
-      xer_fprint(stdout, &asn_DEF_F1AP_PDU, f1apMsg);
+uint8_t fillServCellToModItem(Served_Cells_To_Modify_Item_t *modifyItem)
+{
+   uint8_t ieIdx;
 
-      /* Encode the F1SetupRequest type as APER */
-      memset(encBuf, 0, ENC_BUF_MAX_LEN);
-      encBufSize = 0;
-      encRetVal = aper_encode(&asn_DEF_F1AP_PDU, 0, f1apMsg, PrepFinalEncBuf,\
-           encBuf);
-      /* Encode results */
-      if(encRetVal.encoded == ENCODE_FAIL)
-      {
-        DU_LOG( "\nERROR  -->  F1AP : Could not encode ULRRCMessageTransfer structure (at %s)\n",\
-              encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
-        break;
-      }
-      else
-      {
-        DU_LOG("\nDEBUG   -->  F1AP : Created APER encoded buffer for ULRRCMessageTransfer\n");
-        for(int i=0; i< encBufSize; i++)
-        {
-           printf("%x",encBuf[i]);
-        }
-      }
+   /*pLMN_Identity*/
+   modifyItem->oldNRCGI.pLMN_Identity.size = 3*sizeof(uint8_t);
+   DU_ALLOC(modifyItem->oldNRCGI.pLMN_Identity.buf,modifyItem->oldNRCGI.pLMN_Identity.size);
+   if(modifyItem->oldNRCGI.pLMN_Identity.buf == NULLP)
+   {
+      return RFAILED;
+   }
+   buildPlmnId(duCfgParam.srvdCellLst[0].duCellInfo.cellInfo.nrCgi.plmn,\
+        modifyItem->oldNRCGI.pLMN_Identity.buf);
 
-      /* Sending  msg  */
-      if(SendF1APMsg(DU_APP_MEM_REGION,DU_POOL)        !=      ROK)
-      {
-        DU_LOG("\nERROR  -->   F1AP : Sending  UL RRC Message Transfer Failed");
-        break;
-      }
-      ret = ROK;
-      break;
+   /*nRCellIdentity*/
+   modifyItem->oldNRCGI.nRCellIdentity.size = 5*sizeof(uint8_t);
+   DU_ALLOC(modifyItem->oldNRCGI.nRCellIdentity.buf,\
+        modifyItem->oldNRCGI.nRCellIdentity.size);
+   if(modifyItem->oldNRCGI.nRCellIdentity.buf == NULLP)
+   {
+      return RFAILED;
    }
-   FreeULRRCMessageTransfer(f1apMsg);
+   for(ieIdx = 0; ieIdx < modifyItem->oldNRCGI.nRCellIdentity.size-1; ieIdx++)
+   {
+      modifyItem->oldNRCGI.nRCellIdentity.buf[ieIdx] = 0;
+   }
+   modifyItem->oldNRCGI.nRCellIdentity.buf[4] = 16;
+   modifyItem->oldNRCGI.nRCellIdentity.bits_unused = 4;
 
-   return ret;
-}/* End of BuildAndSendULRRCMessageTransfer*/
+   if(fillServedCellInfo(&modifyItem->served_Cell_Information))
+      return RFAILED;
+   else
+      return ROK;
+}
 
 /*******************************************************************
  *
- * @brief Builds tag config 
+ * @brief Builds ServCellToModList
  *
  * @details
  *
- *    Function : BuildTagConfig 
+ *    Function : buildServCellToModList
  *
- *    Functionality: Builds tag config in MacCellGroupConfig
+ *    Functionality: Builds the serv cell to Mod List
  *
- * @params[in] TAG_Config *tag_Config
+ * @params[in] Pointer to Served_Cells_To_Modify_List_t *
  *
  * @return ROK     - success
  *         RFAILED - failure
  *
- * ****************************************************************/
-uint8_t BuildTagConfig(struct TAG_Config *tagConfig)
-{
-   struct TAG_Config__tag_ToAddModList *tagList;
-   uint8_t                     idx, elementCnt;
-
-   tagConfig->tag_ToReleaseList = NULLP;
-   tagConfig->tag_ToAddModList = NULLP;
-   DU_ALLOC(tagConfig->tag_ToAddModList, sizeof(struct TAG_Config__tag_ToAddModList));
-   if(!tagConfig->tag_ToAddModList)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildTagConfig");
-      return RFAILED;
-   }
+ *****************************************************************/
 
-   elementCnt = 1; //ODU_VALUE_ONE;
-   tagList = tagConfig->tag_ToAddModList;
-   tagList->list.count = elementCnt;
-   tagList->list.size  =  elementCnt * sizeof(struct TAG *);
+uint8_t buildServCellToModList(Served_Cells_To_Modify_List_t *cellsToModify)
+{
+   uint8_t ieListCnt, ieIdx;
+   Served_Cells_To_Modify_Item_t *modifyItem = NULLP;
 
-   tagList->list.array = NULLP;
-   DU_ALLOC(tagList->list.array, tagList->list.size);
-   if(!tagList->list.array)
+   ieListCnt = 1;
+   cellsToModify->list.count = ieListCnt;
+   cellsToModify->list.size = ieListCnt*sizeof(Served_Cells_To_Modify_ItemIEs_t *);
+   DU_ALLOC(cellsToModify->list.array,cellsToModify->list.size);
+   if(cellsToModify->list.array == NULLP)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildTagConfig");
       return RFAILED;
    }
-
-   for(idx=0; idx<tagList->list.count; idx++)
+   for(ieIdx=0; ieIdx< ieListCnt; ieIdx++)
    {
-      tagList->list.array[idx] = NULLP;
-      DU_ALLOC(tagList->list.array[idx], sizeof(struct TAG));
-      if(!tagList->list.array[idx])
+      DU_ALLOC(cellsToModify->list.array[ieIdx],sizeof(Served_Cells_To_Modify_ItemIEs_t));
+      if(cellsToModify->list.array[ieIdx] == NULLP)
       {
-        DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildTagConfig");
         return RFAILED;
       }
    }
+   cellsToModify->list.array[0]->id = ProtocolIE_ID_id_Served_Cells_To_Modify_Item;
+   cellsToModify->list.array[0]->criticality = Criticality_reject;
+   cellsToModify->list.array[0]->value.present =\
+      Served_Cells_To_Modify_ItemIEs__value_PR_Served_Cells_To_Modify_Item;
+   modifyItem=&cellsToModify->list.array[0]->value.choice.Served_Cells_To_Modify_Item;
 
-   idx = 0;
-   tagList->list.array[idx]->tag_Id = TAG_ID;
-   tagList->list.array[idx]->timeAlignmentTimer = TIME_ALIGNMENT_TMR;
-
-   return ROK;
+   if(fillServCellToModItem(modifyItem))
+      return RFAILED;
+   else
+      return ROK;
 }
-
 /*******************************************************************
  *
- * @brief Builds PHR Config 
+ * @brief filling the DeleteItemList
  *
  * @details
  *
- *    Function : BuildPhrConfig
+ *    Function : fillCellToDeleteItem 
  *
- *    Functionality: Builds phrConfig in MacCellGroupConfig
+ *    Functionality: Filling the DeleteItemIe 
  *
- * @params[in] PHR Config *
+ * @params[in] Pointer to Served_Cells_To_Delete_ItemIEs_t 
  *
  * @return ROK     - success
  *         RFAILED - failure
  *
- * ****************************************************************/
-uint8_t BuildPhrConfig(struct MAC_CellGroupConfig__phr_Config *phrConfig)
+ *****************************************************************/
+uint8_t fillCellToDeleteItem(struct Served_Cells_To_Delete_ItemIEs *deleteItemIe)
 {
+   uint8_t arrIdx;
+   Served_Cells_To_Delete_Item_t *deleteItem=NULLP;
+   
+   deleteItemIe->id = ProtocolIE_ID_id_Served_Cells_To_Delete_Item;
+   deleteItemIe->criticality = Criticality_reject;
+   deleteItemIe->value.present =\
+   Served_Cells_To_Delete_ItemIEs__value_PR_Served_Cells_To_Delete_Item;
+   deleteItem=&deleteItemIe->value.choice.Served_Cells_To_Delete_Item;
 
-   phrConfig->present = MAC_CellGroupConfig__phr_Config_PR_setup;
-   phrConfig->choice.setup = NULLP;
-   DU_ALLOC(phrConfig->choice.setup, sizeof(struct PHR_Config));
-   if(!phrConfig->choice.setup)
+   /*pLMN_Identity*/
+   deleteItem->oldNRCGI.pLMN_Identity.size = 3*sizeof(uint8_t);
+   DU_ALLOC(deleteItem->oldNRCGI.pLMN_Identity.buf,deleteItem->oldNRCGI.pLMN_Identity.size);
+   if(deleteItem->oldNRCGI.pLMN_Identity.buf == NULLP)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildPhrConfig");
+      DU_LOG("ERROR  --> F1AP: fillCellToDeleteItem(): Failed to allocate the memory");
       return RFAILED;
    }
+   buildPlmnId(duCfgParam.srvdCellLst[0].duCellInfo.cellInfo.nrCgi.plmn,\
+         deleteItem->oldNRCGI.pLMN_Identity.buf);
 
-   phrConfig->choice.setup->phr_PeriodicTimer        = PHR_PERIODIC_TMR;
-   phrConfig->choice.setup->phr_ProhibitTimer        = PHR_PROHIBHIT_TMR;
-   phrConfig->choice.setup->phr_Tx_PowerFactorChange = PHR_PWR_FACTOR_CHANGE;
-   phrConfig->choice.setup->multiplePHR              = false;
-   phrConfig->choice.setup->dummy                    = false;
-   phrConfig->choice.setup->phr_Type2OtherCell       = false;
-   phrConfig->choice.setup->phr_ModeOtherCG          = PHR_MODE_OTHER_CG;
-
+   /*nRCellIdentity*/
+   deleteItem->oldNRCGI.nRCellIdentity.size = 5*sizeof(uint8_t);
+   DU_ALLOC(deleteItem->oldNRCGI.nRCellIdentity.buf,\
+         deleteItem->oldNRCGI.nRCellIdentity.size);
+   if(deleteItem->oldNRCGI.nRCellIdentity.buf == NULLP)
+   {
+      DU_LOG("ERROR  --> F1AP: fillCellToDeleteItem(): Failed to allocate the memory");
+      return RFAILED;
+   }
+   for(arrIdx = 0; arrIdx < deleteItem->oldNRCGI.nRCellIdentity.size-1; arrIdx++)
+   {
+      deleteItem->oldNRCGI.nRCellIdentity.buf[arrIdx] = 0;
+   }
+   deleteItem->oldNRCGI.nRCellIdentity.buf[4] = 16;
+   deleteItem->oldNRCGI.nRCellIdentity.bits_unused = 4;
    return ROK;
-}
-
+} 
 /*******************************************************************
  *
- * @brief Builds BSR Config 
+ * @brief Builds ServCellToDeleteList
  *
  * @details
  *
- *    Function : BuildBsrConfig
+ *    Function : buildServCellToDeleteList
  *
- *    Functionality: Builds BuildBsrConfig in MacCellGroupConfig
+ *    Functionality: Builds the serv cell to delete List
  *
- * @params[in] BSR_Config *bsrConfig
+ * @params[in] Pointer to Served_Cells_To_Delete_List_t *
  *
  * @return ROK     - success
  *         RFAILED - failure
  *
- * ****************************************************************/
-uint8_t BuildBsrConfig(struct BSR_Config *bsrConfig)
+ *****************************************************************/
+uint8_t buildServCellToDeleteList(Served_Cells_To_Delete_List_t *cellsToDelete)
 {
-   bsrConfig->periodicBSR_Timer = PERIODIC_BSR_TMR;
-   bsrConfig->retxBSR_Timer     = RETX_BSR_TMR;
-   bsrConfig->logicalChannelSR_DelayTimer = NULLP;
-
+   uint8_t ieListCnt, arrIdx;
+   
+   ieListCnt = 1;
+   cellsToDelete->list.count = ieListCnt;
+   cellsToDelete->list.size = ieListCnt*sizeof(Served_Cells_To_Delete_ItemIEs_t *);
+   
+   DU_ALLOC(cellsToDelete->list.array,cellsToDelete->list.size);
+   if(cellsToDelete->list.array == NULLP)
+   {
+      DU_LOG("\nERROR  --> F1AP : buildServCellToDeleteList(): Memory allocation failed");
+      return RFAILED;
+   }
+   
+   for(arrIdx=0; arrIdx< ieListCnt; arrIdx++)
+   {
+      DU_ALLOC(cellsToDelete->list.array[arrIdx],sizeof(Served_Cells_To_Delete_ItemIEs_t));
+      if(cellsToDelete->list.array[arrIdx] == NULLP)
+      {
+         DU_LOG("\nERROR  --> F1AP : buildServCellToDeleteList(): Memory allocation failed");
+         return RFAILED;
+      }
+   }
+   
+   arrIdx=0;
+   if(fillCellToDeleteItem((Served_Cells_To_Delete_ItemIEs_t*)cellsToDelete->list.array[arrIdx]) !=ROK)
+   {
+      DU_LOG("\nERROR  -->  F1AP: buildServCellToDeleteList(): failed to fill Served_Cells_To_Delete_ItemIEs");
+      return RFAILED;
+   }
    return ROK;
 }
 
 /*******************************************************************
  *
- * @brief Builds scheduling request config 
+ * @brief Builds and sends the DUConfigUpdate
  *
  * @details
  *
- *    Function : BuildSchedulingReqConfig 
+ *    Function : BuildAndSendDUConfigUpdate
  *
- *    Functionality: Builds BuildSchedulingReqConfig in MacCellGroupConfig
+ *    Functionality: Constructs the DU Update message and sends
+ *                   it to the CU through SCTP.
  *
- * @params[in] SchedulingRequestConfig *schedulingRequestConfig
+ * @params[in] void **buf,Buffer to which encoded pattern is written into
+ * @params[in] int *size,size of buffer
  *
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint8_t BuildSchedulingReqConfig(struct SchedulingRequestConfig *schedulingRequestConfig)
+uint8_t BuildAndSendDUConfigUpdate(ServCellAction servCellAction)
 {
-   struct SchedulingRequestConfig__schedulingRequestToAddModList *schReqList;
-   uint8_t                     idx, elementCnt;
-
-   schedulingRequestConfig->schedulingRequestToAddModList = NULLP;
-   DU_ALLOC(schedulingRequestConfig->schedulingRequestToAddModList,
-        sizeof(struct SchedulingRequestConfig__schedulingRequestToAddModList));
-   if(!schedulingRequestConfig->schedulingRequestToAddModList)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildSchedulingReqConfig");
-      return RFAILED;
-   }
-
-   elementCnt = 1; //ODU_VALUE_ONE;
-   schReqList = schedulingRequestConfig->schedulingRequestToAddModList;
-   schReqList->list.count = elementCnt;
-   schReqList->list.size  = elementCnt * sizeof(struct SchedulingRequestToAddMod *);
+   uint8_t ret =0, ieIdx=0, elementCnt=0;
+   bool memAlloctionFailure = false;
+   F1AP_PDU_t                 *f1apDuCfg = NULLP;
+   GNBDUConfigurationUpdate_t *duCfgUpdate = NULLP;
+   asn_enc_rval_t encRetVal;     /* Encoder return value */
+   
+   memset(&encRetVal, 0, sizeof(asn_enc_rval_t));
+   ret= RFAILED;
 
-   schReqList->list.array = NULLP;
-   DU_ALLOC(schReqList->list.array, schReqList->list.size);
-   if(!schReqList->list.array)
+   while(true)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildSchedulingReqConfig");
-      return RFAILED;
-   }
+      DU_LOG("\nINFO   -->  F1AP : Building DU config update\n");
+      /* Allocate the memory for F1DuCfg */
+      DU_ALLOC(f1apDuCfg, sizeof(F1AP_PDU_t));
+      if(f1apDuCfg == NULLP)
+      {
+         DU_LOG("\nERROR  -->  F1AP : BuildAndSendDUConfigUpdate(): Memory allocation for F1AP-PDU failed");
+         break;
+      }
 
-   for(idx=0;idx<schReqList->list.count; idx++)
-   {
-      schReqList->list.array[idx] = NULLP;
-      DU_ALLOC(schReqList->list.array[idx], sizeof(struct SchedulingRequestToAddMod));
-      if(!schReqList->list.array[idx])
+      f1apDuCfg->present = F1AP_PDU_PR_initiatingMessage;
+      DU_ALLOC(f1apDuCfg->choice.initiatingMessage,sizeof(InitiatingMessage_t));
+      if(f1apDuCfg->choice.initiatingMessage == NULLP)
       {
-        DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildSchedulingReqConfig");
-        return RFAILED;
+         DU_LOG("\nERROR  -->  F1AP : BuildAndSendDUConfigUpdate(): Memory allocation for F1AP-PDU failed");
+         break;
       }
-   }
 
-   idx = 0;
-   schReqList->list.array[idx]->schedulingRequestId = SCH_REQ_ID;
-
-   schReqList->list.array[idx]->sr_ProhibitTimer = NULLP;
-   DU_ALLOC(schReqList->list.array[idx]->sr_ProhibitTimer, sizeof(long));
-   if(!schReqList->list.array[idx]->sr_ProhibitTimer)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildSchedulingReqConfig");
-      return RFAILED;
-   }
-   *(schReqList->list.array[idx]->sr_ProhibitTimer) = SR_PROHIBIT_TMR;
-   schReqList->list.array[idx]->sr_TransMax = SR_TRANS_MAX;
-   schedulingRequestConfig->schedulingRequestToReleaseList = NULLP;
-
-   return ROK;
-}
+      f1apDuCfg->choice.initiatingMessage->procedureCode = \
+                                                           ProcedureCode_id_gNBDUConfigurationUpdate;
+      f1apDuCfg->choice.initiatingMessage->criticality = Criticality_reject;
+      f1apDuCfg->choice.initiatingMessage->value.present = \
+                                                           InitiatingMessage__value_PR_GNBDUConfigurationUpdate;
+      duCfgUpdate = &f1apDuCfg->choice.initiatingMessage->value.\
+                    choice.GNBDUConfigurationUpdate;
+      elementCnt = 3;
+      duCfgUpdate->protocolIEs.list.count = elementCnt;
+      duCfgUpdate->protocolIEs.list.size = \
+                                           elementCnt * sizeof(GNBDUConfigurationUpdateIEs_t*);
 
-/*******************************************************************
- *
- * @brief Builds RLC Config
- *
- * @details
- *
- *    Function : BuildRlcConfig
- *
- *    Functionality: Builds RLC Config in BuildRlcBearerToAddModList 
- *
- * @params[in] RLC_Config *rlcConfig
- *
- * @return ROK     - success
- *         RFAILED - failure
- *
- * ****************************************************************/
-uint8_t BuildRlcConfig(struct RLC_Config *rlcConfig)
-{
+      /* Initialize the F1Setup members */
+      DU_ALLOC(duCfgUpdate->protocolIEs.list.array,duCfgUpdate->protocolIEs.list.size);
+      if(duCfgUpdate->protocolIEs.list.array == NULLP)
+      {
+         DU_LOG("ERROR  -->  F1AP : BuildAndSendDUConfigUpdate(): Memory allocation failed");
+         break;
+      }
+      for(ieIdx=0; ieIdx<elementCnt; ieIdx++)
+      {
+         DU_ALLOC(duCfgUpdate->protocolIEs.list.array[ieIdx],sizeof(GNBDUConfigurationUpdateIEs_t));
+         if(duCfgUpdate->protocolIEs.list.array[ieIdx] == NULLP)
+         {
+            DU_LOG("ERROR  -->  F1AP : BuildAndSendDUConfigUpdate(): Memory allocation failed");
+            memAlloctionFailure = true;
+            break;
+         }
+      }
+      
+      if(memAlloctionFailure == true)
+      {
+         break;
+      }
+      /*TransactionID*/
+      ieIdx = 0;
+      duCfgUpdate->protocolIEs.list.array[ieIdx]->id=ProtocolIE_ID_id_TransactionID;
+      duCfgUpdate->protocolIEs.list.array[ieIdx]->criticality= Criticality_reject;
+      duCfgUpdate->protocolIEs.list.array[ieIdx]->value.present = \
+      GNBDUConfigurationUpdateIEs__value_PR_TransactionID;
+      duCfgUpdate->protocolIEs.list.array[ieIdx]->value.choice.TransactionID = TRANS_ID;
+      
+      ieIdx++;
+      if(servCellAction == SERV_CELL_TO_MODIFY)
+      {
+         /*Served Cell to Modify */
+         duCfgUpdate->protocolIEs.list.array[ieIdx]->id = \
+         ProtocolIE_ID_id_Served_Cells_To_Modify_List;
+         duCfgUpdate->protocolIEs.list.array[ieIdx]->criticality =Criticality_reject;
+         duCfgUpdate->protocolIEs.list.array[ieIdx]->value.present = \
+         GNBDUConfigurationUpdateIEs__value_PR_Served_Cells_To_Modify_List;
+         if(buildServCellToModList(&duCfgUpdate->protocolIEs.list.array[ieIdx]->value.choice.\
+                  Served_Cells_To_Modify_List))
+         {
+            DU_LOG("ERROR  --> DU APP : BuildAndSendDUConfigUpdate(): failed to build ServCellToModList");
+            break;
+         }
+      }
+      else
+      {
+         /*Served Cell to Delete */ 
+         duCfgUpdate->protocolIEs.list.array[ieIdx]->id = \
+         ProtocolIE_ID_id_Served_Cells_To_Delete_List;
+         duCfgUpdate->protocolIEs.list.array[ieIdx]->criticality =Criticality_reject;
+         duCfgUpdate->protocolIEs.list.array[ieIdx]->value.present = \
+         GNBDUConfigurationUpdateIEs__value_PR_Served_Cells_To_Delete_List;
+         if(buildServCellToDeleteList(&duCfgUpdate->protocolIEs.list.array[ieIdx]->value.choice.\
+         Served_Cells_To_Delete_List)!=ROK)
+         {
+            DU_LOG("ERROR  --> DU APP : BuildAndSendDUConfigUpdate(): failed to build ServCellToDeleteList");
+            break;
+         }
+         
+      }
+      // NOTE :GNB DU SYS INFO:MIB AND SIB1 INFORMATION TO BE BUILT AND FILLED HERE
+      /*GNB DU ID */
+      ieIdx++;
+      duCfgUpdate->protocolIEs.list.array[ieIdx]->id = ProtocolIE_ID_id_gNB_DU_ID;
+      duCfgUpdate->protocolIEs.list.array[ieIdx]->criticality = Criticality_reject;
+      duCfgUpdate->protocolIEs.list.array[ieIdx]->value.present = \
+      GNBDUConfigurationUpdateIEs__value_PR_GNB_DU_ID;
+      duCfgUpdate->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.size = sizeof(uint8_t);
+      DU_ALLOC(duCfgUpdate->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.buf,\
+            duCfgUpdate->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.size);
+      if(duCfgUpdate->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.buf == NULLP)
+      {
+         DU_LOG("ERROR  --> DU APP : BuildAndSendDUConfigUpdate(): Memory allocation failed for GNB_DU_ID");
+         break;
+      }
+      duCfgUpdate->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_ID.buf[0] = duCfgParam.duId;
 
-   rlcConfig->present = RLC_Config_PR_am;
+      xer_fprint(stdout, &asn_DEF_F1AP_PDU, f1apDuCfg);
 
-   rlcConfig->choice.am = NULLP;
-   DU_ALLOC(rlcConfig->choice.am, sizeof(struct RLC_Config__am));
-   if(!rlcConfig->choice.am)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildRlcConfig");
-      return RFAILED;
-   }
+      /* Encode the DU Config Update type as APER */
+      memset((uint8_t *)encBuf, 0, ENC_BUF_MAX_LEN);
+      encBufSize = 0;
+      encRetVal = aper_encode(&asn_DEF_F1AP_PDU, 0, f1apDuCfg, PrepFinalEncBuf, encBuf);
 
-   /* UL */
-   rlcConfig->choice.am->ul_AM_RLC.sn_FieldLength = NULLP;
-   DU_ALLOC(rlcConfig->choice.am->ul_AM_RLC.sn_FieldLength, sizeof(SN_FieldLengthAM_t));
-   if(!rlcConfig->choice.am->ul_AM_RLC.sn_FieldLength)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildRlcConfig");
-      return RFAILED;
-   }
-   *(rlcConfig->choice.am->ul_AM_RLC.sn_FieldLength) = SN_FIELD_LEN;
-   rlcConfig->choice.am->ul_AM_RLC.t_PollRetransmit  = T_POLL_RETRANSMIT;
-   rlcConfig->choice.am->ul_AM_RLC.pollPDU           = POLL_PDU;
-   rlcConfig->choice.am->ul_AM_RLC.pollByte          = POLL_BYTE;
-   rlcConfig->choice.am->ul_AM_RLC.maxRetxThreshold  = MAX_RETX_THRESHOLD;
+      /* Checking encode results */
+      if(encRetVal.encoded == ENCODE_FAIL)
+      {
+         DU_LOG("ERROR  -->  F1AP : Could not encode DUConfigUpdate structure (at %s)\n",\
+               encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
+         break;
+      }
+      else
+      {
+         DU_LOG("\nDEBUG   -->  F1AP : Created APER encoded buffer for DUConfigUpdate\n");
+         for(ieIdx =0; ieIdx < encBufSize; ieIdx++)
+         {
+            printf("%x",encBuf[ieIdx]);
+         }
+      }
+      /* Sending msg */
+      if(sendF1APMsg() != ROK)
+      {
+         DU_LOG("\nERROR  -->  F1AP : Sending GNB-DU Config Update failed");
+         break;
+      }
 
-   /* DL */
-   rlcConfig->choice.am->dl_AM_RLC.sn_FieldLength = NULLP;
-   DU_ALLOC(rlcConfig->choice.am->dl_AM_RLC.sn_FieldLength, sizeof(SN_FieldLengthAM_t)); 
-   if(!rlcConfig->choice.am->dl_AM_RLC.sn_FieldLength)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildRlcConfig");
-      return RFAILED;
+      ret = ROK;
+      break;
    }
-   *(rlcConfig->choice.am->dl_AM_RLC.sn_FieldLength) = SN_FIELD_LEN;
-   rlcConfig->choice.am->dl_AM_RLC.t_Reassembly      = T_REASSEMBLY;
-   rlcConfig->choice.am->dl_AM_RLC.t_StatusProhibit  = T_STATUS_PROHIBHIT;
-
-   return ROK;
+  
+   addToReservedF1apPduList(TRANS_ID,f1apDuCfg);
+   return ret;
 }
 
+
 /*******************************************************************
  *
- * @brief Builds MAC LC Config
+ * @brief free the ULRRCMessageTransfer
  *
  * @details
  *
- *    Function : BuildMacLCConfig 
+ *    Function : FreeULRRCMessageTransfer
  *
- *    Functionality: Builds MAC LC Config in BuildRlcBearerToAddModList 
+ *    Functionality: Deallocating the memory of variable allocated in
+ *                      FreeULRRCMessageTransfer
  *
- * @params[in] struct LogicalChannelConfig macLcConfig
+ * @params[in]
  *
- * @return ROK     - success
- *         RFAILED - failure
+ * @return ROK     - void
  *
- * ****************************************************************/
-uint8_t BuildMacLCConfig(struct LogicalChannelConfig *macLcConfig)
+ ******************************************************************/
+void FreeULRRCMessageTransfer( F1AP_PDU_t *f1apMsg)
 {
+   uint8_t idx1;
+   ULRRCMessageTransfer_t  *ulRRCMsg;
 
-   macLcConfig->ul_SpecificParameters = NULLP;
-   DU_ALLOC(macLcConfig->ul_SpecificParameters, sizeof(struct LogicalChannelConfig__ul_SpecificParameters));
-   if(!macLcConfig->ul_SpecificParameters)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildMacLCConfig");
-      return RFAILED;
-   }
-
-   macLcConfig->ul_SpecificParameters->priority = MAC_LC_PRIORITY;
-   macLcConfig->ul_SpecificParameters->prioritisedBitRate =    PRIORTISIED_BIT_RATE;
-   macLcConfig->ul_SpecificParameters->bucketSizeDuration =    BUCKET_SIZE_DURATION;
-   macLcConfig->ul_SpecificParameters->allowedServingCells = NULLP;
-   macLcConfig->ul_SpecificParameters->allowedSCS_List = NULLP;
-   macLcConfig->ul_SpecificParameters->maxPUSCH_Duration = NULLP;
-   macLcConfig->ul_SpecificParameters->configuredGrantType1Allowed = NULLP;
-
-   macLcConfig->ul_SpecificParameters->logicalChannelGroup = NULLP;
-   DU_ALLOC(macLcConfig->ul_SpecificParameters->logicalChannelGroup,   sizeof(long));
-   if(!macLcConfig->ul_SpecificParameters->logicalChannelGroup)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildMacLCConfig");
-      return RFAILED;
-   }
-   *(macLcConfig->ul_SpecificParameters->logicalChannelGroup) = LC_GRP;
-
-   macLcConfig->ul_SpecificParameters->schedulingRequestID = NULLP;
-   DU_ALLOC(macLcConfig->ul_SpecificParameters->schedulingRequestID,   sizeof(SchedulingRequestId_t));
-   if(!macLcConfig->ul_SpecificParameters->schedulingRequestID)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildMacLCConfig");
-      return RFAILED;
+   if(f1apMsg != NULLP)
+   { 
+      if(f1apMsg->choice.initiatingMessage != NULLP)
+      {
+        ulRRCMsg = &f1apMsg->choice.initiatingMessage->value.choice.ULRRCMessageTransfer;
+        if(ulRRCMsg->protocolIEs.list.array != NULLP)
+        {
+           for(idx1=0;idx1<ulRRCMsg->protocolIEs.list.count;idx1++)
+           {
+              if(ulRRCMsg->protocolIEs.list.array[idx1] != NULLP)
+              {
+                 if(ulRRCMsg->protocolIEs.list.array[idx1]->value.present ==
+                       ULRRCMessageTransferIEs__value_PR_RRCContainer)
+                 {
+                    DU_FREE(ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.RRCContainer.buf,
+                          ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.RRCContainer.size);
+                 }
+                 DU_FREE(ulRRCMsg->protocolIEs.list.array[idx1],sizeof(ULRRCMessageTransferIEs_t));
+              }
+           }
+           DU_FREE(ulRRCMsg->protocolIEs.list.array,ulRRCMsg->protocolIEs.list.size );
+        }
+        DU_FREE(f1apMsg->choice.initiatingMessage,sizeof(InitiatingMessage_t));
+      }
+      DU_FREE(f1apMsg,sizeof(F1AP_PDU_t));
    }
-   *(macLcConfig->ul_SpecificParameters->schedulingRequestID) = SCH_REQ_ID;
-
-   macLcConfig->ul_SpecificParameters->logicalChannelSR_Mask = false;
-   macLcConfig->ul_SpecificParameters->logicalChannelSR_DelayTimerApplied = false;
-   macLcConfig->ul_SpecificParameters->bitRateQueryProhibitTimer = NULLP;
-
-   return ROK;
 }
-
 /*******************************************************************
  *
- * @brief Builds RLC Bearer to Add/Mod list
+ * @brief Builds and sends the ULRRCMessageTransfer 
  *
  * @details
  *
- *    Function :BuildRlcBearerToAddModList 
+ *    Function : BuildAndSendULRRCMessageTransfer
  *
- *    Functionality: Builds RLC Bearer to Add/Mod list in DuToCuRrcContainer
+ *    Functionality: Constructs the UL RRC Message Transfer and sends
+ *                   it to the CU through SCTP.
  *
- * @params[in] rlc_BearerToAddModList
+ * @params[in] 
  *
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint8_t BuildRlcBearerToAddModList(struct CellGroupConfigRrc__rlc_BearerToAddModList *rlcBearerList)
+uint8_t BuildAndSendULRRCMessageTransfer(DuUeCb  ueCb, uint8_t lcId, \
+      uint16_t msgLen, uint8_t *rrcMsg)
 {
-   uint8_t                     idx, elementCnt;
+   uint8_t   elementCnt =0;
+   uint8_t   idx1 =0;
+   uint8_t   idx =0;
+   F1AP_PDU_t                  *f1apMsg = NULLP;
+   ULRRCMessageTransfer_t      *ulRRCMsg = NULLP;
+   asn_enc_rval_t              encRetVal;        /* Encoder return value */
+   uint8_t ret =RFAILED;
+   
+   memset(&encRetVal, 0, sizeof(asn_enc_rval_t));
 
-   elementCnt = 1;
-   rlcBearerList->list.count = elementCnt;
-   rlcBearerList->list.size  = elementCnt * sizeof(struct RLC_BearerConfig *);
+   while(true)
+   {
+      DU_LOG("\n INFO   -->  F1AP : Building UL RRC Message Transfer Message\n");
 
-   rlcBearerList->list.array = NULLP;
-   DU_ALLOC(rlcBearerList->list.array, rlcBearerList->list.size);
-   if(!rlcBearerList->list.array)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildRlcBearerToAddModList");
-      return RFAILED;
-   }
+      DU_ALLOC(f1apMsg, sizeof(F1AP_PDU_t));
+      if(f1apMsg == NULLP)
+      {
+        DU_LOG(" ERROR  -->  F1AP : Memory allocation for F1AP-PDU failed");
+        break;
+      }
+      f1apMsg->present = F1AP_PDU_PR_initiatingMessage;
+      DU_ALLOC(f1apMsg->choice.initiatingMessage,sizeof(InitiatingMessage_t));
+      if(f1apMsg->choice.initiatingMessage == NULLP)
+      {
+        DU_LOG(" ERROR  -->  F1AP : Memory allocation for      F1AP-PDU failed");
+        break;
+      }
+      f1apMsg->choice.initiatingMessage->procedureCode = ProcedureCode_id_ULRRCMessageTransfer;
+      f1apMsg->choice.initiatingMessage->criticality = Criticality_ignore;
+      f1apMsg->choice.initiatingMessage->value.present = \
+                                                        InitiatingMessage__value_PR_ULRRCMessageTransfer;
+      ulRRCMsg =
+        &f1apMsg->choice.initiatingMessage->value.choice.ULRRCMessageTransfer;
+      elementCnt = 4;
+      ulRRCMsg->protocolIEs.list.count = elementCnt;
+      ulRRCMsg->protocolIEs.list.size = \
+                                       elementCnt * sizeof(ULRRCMessageTransferIEs_t *);
 
-   for(idx=0; idx<rlcBearerList->list.count; idx++)
-   {
-      rlcBearerList->list.array[idx] = NULLP;
-      DU_ALLOC(rlcBearerList->list.array[idx], sizeof(struct RLC_BearerConfig));
-      if(!rlcBearerList->list.array[idx])
+      /* Initialize the F1Setup members */
+      DU_ALLOC(ulRRCMsg->protocolIEs.list.array, ulRRCMsg->protocolIEs.list.size);
+      if(ulRRCMsg->protocolIEs.list.array == NULLP)
       {
-        DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildRlcBearerToAddModList");
-        return RFAILED;
+        DU_LOG(" ERROR  -->  F1AP : Memory allocation for UL RRC MessageTransferIEs failed");
+        break;
+      }
+      for(idx=0; idx<elementCnt; idx++)
+      {
+        DU_ALLOC(ulRRCMsg->protocolIEs.list.array[idx],sizeof(ULRRCMessageTransferIEs_t));
+        if(ulRRCMsg->protocolIEs.list.array[idx] == NULLP)
+        {
+           break;
+        }
       }
-   }
 
-   idx = 0;
-   rlcBearerList->list.array[idx]->logicalChannelIdentity = SRB1_LCID;
+      idx1 = 0;
 
-   DU_ALLOC(rlcBearerList->list.array[idx]->servedRadioBearer, \
-      sizeof(struct RLC_BearerConfig__servedRadioBearer));
-   if(!rlcBearerList->list.array[idx]->servedRadioBearer)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildRlcBearerToAddModList");
-      return RFAILED;
-   }
+      /*GNB CU UE F1AP ID*/
+      ulRRCMsg->protocolIEs.list.array[idx1]->id = ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID;
+      ulRRCMsg->protocolIEs.list.array[idx1]->criticality = Criticality_reject;
+      ulRRCMsg->protocolIEs.list.array[idx1]->value.present = \
+                                                             ULRRCMessageTransferIEs__value_PR_GNB_CU_UE_F1AP_ID;
+      ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.GNB_CU_UE_F1AP_ID = ueCb.gnbCuUeF1apId;
 
-   rlcBearerList->list.array[idx]->servedRadioBearer->present = \
-      RLC_BearerConfig__servedRadioBearer_PR_srb_Identity;
-   rlcBearerList->list.array[idx]->servedRadioBearer->choice.srb_Identity = \
-      SRB1_LCID;
+      /*GNB DU UE F1AP ID*/
+      idx1++;
+      ulRRCMsg->protocolIEs.list.array[idx1]->id = ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID;
+      ulRRCMsg->protocolIEs.list.array[idx1]->criticality = Criticality_reject;
+      ulRRCMsg->protocolIEs.list.array[idx1]->value.present = \
+                                                             ULRRCMessageTransferIEs__value_PR_GNB_DU_UE_F1AP_ID;
+      ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.GNB_DU_UE_F1AP_ID = ueCb.gnbDuUeF1apId;
 
-   rlcBearerList->list.array[idx]->reestablishRLC = NULLP;
-   rlcBearerList->list.array[idx]->rlc_Config = NULLP;
-   DU_ALLOC(rlcBearerList->list.array[idx]->rlc_Config, sizeof(struct RLC_Config));
-   if(!rlcBearerList->list.array[idx]->rlc_Config)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildRlcBearerToAddModList");
-      return RFAILED;
-   }
+      /*SRBID*/
+      idx1++;
+      ulRRCMsg->protocolIEs.list.array[idx1]->id = ProtocolIE_ID_id_SRBID;
+      ulRRCMsg->protocolIEs.list.array[idx1]->criticality = Criticality_reject;
+      ulRRCMsg->protocolIEs.list.array[idx1]->value.present = \
+                                                             ULRRCMessageTransferIEs__value_PR_SRBID;
+      ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.SRBID = lcId;
 
-   if(BuildRlcConfig(rlcBearerList->list.array[idx]->rlc_Config) != ROK)
-   {
-      DU_LOG("\nERROR  -->  F1AP : BuildRlcConfig failed");
-      return RFAILED;
-   }
+      /*RRCContainer*/
+      idx1++;
+      ulRRCMsg->protocolIEs.list.array[idx1]->id  = ProtocolIE_ID_id_RRCContainer;
+      ulRRCMsg->protocolIEs.list.array[idx1]->criticality = Criticality_reject;
+      ulRRCMsg->protocolIEs.list.array[idx1]->value.present = \
+                                                             ULRRCMessageTransferIEs__value_PR_RRCContainer;
+      ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.RRCContainer.size = msgLen;
+      DU_ALLOC(ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.RRCContainer.buf,
+           ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.RRCContainer.size)
+      if(!ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.RRCContainer.buf)
+      {
+        DU_LOG(" ERROR  -->  F1AP : Memory allocation for BuildAndSendULRRCMessageTransfer failed");
+        break;
+      }
+      memset(ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.RRCContainer.buf, 0, msgLen);
+      memcpy(ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.RRCContainer.buf, \
+           rrcMsg, ulRRCMsg->protocolIEs.list.array[idx1]->value.choice.RRCContainer.size);
 
-   rlcBearerList->list.array[idx]->mac_LogicalChannelConfig = NULLP;
-   DU_ALLOC(rlcBearerList->list.array[idx]->mac_LogicalChannelConfig, \
-      sizeof(struct LogicalChannelConfig));
-   if(!rlcBearerList->list.array[idx]->mac_LogicalChannelConfig)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildRlcBearerToAddModList");
-      return RFAILED;
-   }
+      xer_fprint(stdout, &asn_DEF_F1AP_PDU, f1apMsg);
 
-   if(BuildMacLCConfig(rlcBearerList->list.array[idx]->mac_LogicalChannelConfig) != ROK)
-   {
-      DU_LOG("\nERROR  -->  F1AP : BuildMacLCConfig failed");
-      return RFAILED;
+      /* Encode the F1SetupRequest type as APER */
+      memset(encBuf, 0, ENC_BUF_MAX_LEN);
+      encBufSize = 0;
+      encRetVal = aper_encode(&asn_DEF_F1AP_PDU, 0, f1apMsg, PrepFinalEncBuf,\
+           encBuf);
+      /* Encode results */
+      if(encRetVal.encoded == ENCODE_FAIL)
+      {
+        DU_LOG( "\nERROR  -->  F1AP : Could not encode ULRRCMessageTransfer structure (at %s)\n",\
+              encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
+        break;
+      }
+      else
+      {
+        DU_LOG("\nDEBUG   -->  F1AP : Created APER encoded buffer for ULRRCMessageTransfer\n");
+        for(int i=0; i< encBufSize; i++)
+        {
+           printf("%x",encBuf[i]);
+        }
+      }
+
+      /* Sending  msg  */
+      if(sendF1APMsg() !=      ROK)
+      {
+        DU_LOG("\nERROR  -->   F1AP : Sending  UL RRC Message Transfer Failed");
+        break;
+      }
+      ret = ROK;
+      break;
    }
+   FreeULRRCMessageTransfer(f1apMsg);
 
-   return ROK;
-}
+   return ret;
+}/* End of BuildAndSendULRRCMessageTransfer*/
 
 /*******************************************************************
  *
- * @brief Build Control resource set to add/modify list 
+ * @brief Builds tag config 
  *
  * @details
  *
- *    Function : BuildControlRSetToAddModList
+ *    Function : BuildTagConfig 
  *
- *    Functionality: Build Control resource set to add/modify list
+ *    Functionality: Builds tag config in MacCellGroupConfig
  *
- * @params[in] 
- * struct PDCCH_Config__controlResourceSetToAddModList *controlRSetList
+ * @params[in] TAG_Config *tag_Config
  *
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-   uint8_t BuildControlRSetToAddModList
-(
- struct PDCCH_Config__controlResourceSetToAddModList *controlRSetList
- )
+uint8_t BuildTagConfig(struct TAG_Config *tagConfig)
 {
-   uint8_t idx;
-   uint8_t elementCnt;
-   uint8_t numBytes, bitsUnused;
-   struct ControlResourceSet *controlRSet;
-   uint8_t freqDomainResource[FREQ_DOM_RSRC_SIZE] = {0};
-   uint8_t coreset0EndPrb, coreset1StartPrb, coreset1NumPrb;
+   struct TAG_Config__tag_ToAddModList *tagList;
+   uint8_t                     idx, elementCnt;
 
+   tagConfig->tag_ToReleaseList = NULLP;
+   tagConfig->tag_ToAddModList = NULLP;
+   DU_ALLOC(tagConfig->tag_ToAddModList, sizeof(struct TAG_Config__tag_ToAddModList));
+   if(!tagConfig->tag_ToAddModList)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildTagConfig");
+      return RFAILED;
+   }
 
-   elementCnt = 1;
-   controlRSetList->list.count = elementCnt;
-   controlRSetList->list.size = \
-                               elementCnt * sizeof(struct ControlResourceSet *);
+   elementCnt = 1; //ODU_VALUE_ONE;
+   tagList = tagConfig->tag_ToAddModList;
+   tagList->list.count = elementCnt;
+   tagList->list.size  =  elementCnt * sizeof(struct TAG *);
 
-   controlRSetList->list.array = NULLP;
-   DU_ALLOC(controlRSetList->list.array, controlRSetList->list.size);
-   if(!controlRSetList->list.array)
+   tagList->list.array = NULLP;
+   DU_ALLOC(tagList->list.array, tagList->list.size);
+   if(!tagList->list.array)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildControlRSetToAddModList");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildTagConfig");
       return RFAILED;
    }
 
-   for(idx = 0; idx < elementCnt; idx++)
+   for(idx=0; idx<tagList->list.count; idx++)
    {
-      controlRSetList->list.array[idx] = NULLP;
-      DU_ALLOC(controlRSetList->list.array[idx], sizeof(struct ControlResourceSet));
-      if(!controlRSetList->list.array[idx])
+      tagList->list.array[idx] = NULLP;
+      DU_ALLOC(tagList->list.array[idx], sizeof(struct TAG));
+      if(!tagList->list.array[idx])
       {
-        DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildControlRSetToAddModList");
+        DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildTagConfig");
         return RFAILED;
       }
    }
 
-   idx=0;
-   controlRSet = controlRSetList->list.array[idx];
+   idx = 0;
+   tagList->list.array[idx]->tag_Id = TAG_ID;
+   tagList->list.array[idx]->timeAlignmentTimer = TIME_ALIGNMENT_TMR;
 
-   controlRSet->controlResourceSetId = PDCCH_CTRL_RSRC_SET_ONE_ID;
+   return ROK;
+}
 
-   /* size 6 bytes
-    * 3 LSBs unsued
-    * Bit string stored ff0000000000
-    */
-   numBytes = 6;
-   bitsUnused = 3;
-   controlRSet->frequencyDomainResources.size = numBytes * sizeof(uint8_t);
+/*******************************************************************
+ *
+ * @brief Builds PHR Config 
+ *
+ * @details
+ *
+ *    Function : BuildPhrConfig
+ *
+ *    Functionality: Builds phrConfig in MacCellGroupConfig
+ *
+ * @params[in] PHR Config *
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t BuildPhrConfig(struct MAC_CellGroupConfig__phr_Config *phrConfig)
+{
 
-   controlRSet->frequencyDomainResources.buf = NULLP;
-   DU_ALLOC(controlRSet->frequencyDomainResources.buf, \
-        controlRSet->frequencyDomainResources.size);
-   if(!controlRSet->frequencyDomainResources.buf)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildControlRSetToAddModList");
+   phrConfig->present = MAC_CellGroupConfig__phr_Config_PR_setup;
+   phrConfig->choice.setup = NULLP;
+   DU_ALLOC(phrConfig->choice.setup, sizeof(struct PHR_Config));
+   if(!phrConfig->choice.setup)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildPhrConfig");
       return RFAILED;
    }
 
-   memset(controlRSet->frequencyDomainResources.buf, 0, FREQ_DOM_RSRC_SIZE);
-   coreset0EndPrb = CORESET0_END_PRB;
-   coreset1StartPrb = coreset0EndPrb + 6;
-   coreset1NumPrb = CORESET1_NUM_PRB;
-   /* calculate the PRBs */
-   freqDomRscAllocType0(((coreset1StartPrb)/6), (coreset1NumPrb/6), freqDomainResource);
-   memcpy(controlRSet->frequencyDomainResources.buf, freqDomainResource, FREQ_DOM_RSRC_SIZE);
-   controlRSet->frequencyDomainResources.bits_unused = bitsUnused;
+   phrConfig->choice.setup->phr_PeriodicTimer        = PHR_PERIODIC_TMR;
+   phrConfig->choice.setup->phr_ProhibitTimer        = PHR_PROHIBHIT_TMR;
+   phrConfig->choice.setup->phr_Tx_PowerFactorChange = PHR_PWR_FACTOR_CHANGE;
+   phrConfig->choice.setup->multiplePHR              = false;
+   phrConfig->choice.setup->dummy                    = false;
+   phrConfig->choice.setup->phr_Type2OtherCell       = false;
+   phrConfig->choice.setup->phr_ModeOtherCG          = PHR_MODE_OTHER_CG;
 
-   controlRSet->duration = PDCCH_CTRL_RSRC_SET_ONE_DURATION;
-   controlRSet->cce_REG_MappingType.present = \
-                                             ControlResourceSet__cce_REG_MappingType_PR_nonInterleaved;
+   return ROK;
+}
 
-   controlRSet->precoderGranularity = PDCCH_CTRL_RSRC_SET_ONE_PRECOD_GRANULARITY;
-   controlRSet->tci_StatesPDCCH_ToAddList = NULLP;
-   controlRSet->tci_StatesPDCCH_ToReleaseList = NULLP;
-   controlRSet->tci_PresentInDCI = NULLP;
-#if 0
-   uint8_t tciStateIdx;
+/*******************************************************************
+ *
+ * @brief Builds BSR Config 
+ *
+ * @details
+ *
+ *    Function : BuildBsrConfig
+ *
+ *    Functionality: Builds BuildBsrConfig in MacCellGroupConfig
+ *
+ * @params[in] BSR_Config *bsrConfig
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t BuildBsrConfig(struct BSR_Config *bsrConfig)
+{
+   bsrConfig->periodicBSR_Timer = PERIODIC_BSR_TMR;
+   bsrConfig->retxBSR_Timer     = RETX_BSR_TMR;
+   bsrConfig->logicalChannelSR_DelayTimer = NULLP;
 
-   DU_ALLOC(controlRset->tci_StatesPDCCH_ToAddList, \
-        sizeof(struct ControlResourceSet__tci_StatesPDCCH_ToAddList));
-   if(!controlRset->tci_StatesPDCCH_ToAddList)
+   return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Builds scheduling request config 
+ *
+ * @details
+ *
+ *    Function : BuildSchedulingReqConfig 
+ *
+ *    Functionality: Builds BuildSchedulingReqConfig in MacCellGroupConfig
+ *
+ * @params[in] SchedulingRequestConfig *schedulingRequestConfig
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t BuildSchedulingReqConfig(struct SchedulingRequestConfig *schedulingRequestConfig)
+{
+   struct SchedulingRequestConfig__schedulingRequestToAddModList *schReqList;
+   uint8_t                     idx, elementCnt;
+
+   schedulingRequestConfig->schedulingRequestToAddModList = NULLP;
+   DU_ALLOC(schedulingRequestConfig->schedulingRequestToAddModList,
+        sizeof(struct SchedulingRequestConfig__schedulingRequestToAddModList));
+   if(!schedulingRequestConfig->schedulingRequestToAddModList)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildControlRSetToAddModList");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildSchedulingReqConfig");
       return RFAILED;
    }
 
-   elementCnt = 1;
-   controlRset->tci_StatesPDCCH_ToAddList->list.count = elementCnt;
-   controlRset->tci_StatesPDCCH_ToAddList->list.size = elementCnt * sizeof(TCI_StateId_t *);
-   DU_ALLOC(controlRset->tci_StatesPDCCH_ToAddList->list.array, \
-        controlRset->tci_StatesPDCCH_ToAddList->list.size)
-      if(!controlRset->tci_StatesPDCCH_ToAddList->list.array)
-      {
-        DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildControlRSetToAddModList");
-        return RFAILED;
-      }
+   elementCnt = 1; //ODU_VALUE_ONE;
+   schReqList = schedulingRequestConfig->schedulingRequestToAddModList;
+   schReqList->list.count = elementCnt;
+   schReqList->list.size  = elementCnt * sizeof(struct SchedulingRequestToAddMod *);
 
-   for(tciStateIdx = 0; tciStateIdx <elementCntl; tciStateIdx++)
+   schReqList->list.array = NULLP;
+   DU_ALLOC(schReqList->list.array, schReqList->list.size);
+   if(!schReqList->list.array)
    {
-      DU_ALLOC(controlRset->tci_StatesPDCCH_ToAddList->list.array[tciStateIdx], sizeof(TCI_StateId_t));
-      if(!controlRset->tci_StatesPDCCH_ToAddList->list.array[tciStateIdx])
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildSchedulingReqConfig");
+      return RFAILED;
+   }
+
+   for(idx=0;idx<schReqList->list.count; idx++)
+   {
+      schReqList->list.array[idx] = NULLP;
+      DU_ALLOC(schReqList->list.array[idx], sizeof(struct SchedulingRequestToAddMod));
+      if(!schReqList->list.array[idx])
       {
-        DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildControlRSetToAddModList");
+        DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildSchedulingReqConfig");
         return RFAILED;
       }
    }
 
-   tciStateIdx = 0;
-   /* TODO */
-   *(controlRset->tci_StatesPDCCH_ToAddList->list.array[tciStateIdx]);
-
-   DU_ALLOC(controlRset->tci_PresentInDCI, sizeof(long));
-   if(!controlRset->tci_PresentInDCI)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildControlRSetToAddModList");
-      return RFAILED;
-   }
-   /* TODO */
-   *(controlRset->tci_PresentInDCI);
-#endif
+   idx = 0;
+   schReqList->list.array[idx]->schedulingRequestId = SCH_REQ_ID;
 
-   controlRSet->pdcch_DMRS_ScramblingID = NULLP;
-   DU_ALLOC(controlRSet->pdcch_DMRS_ScramblingID, sizeof(long));
-   if(!controlRSet->pdcch_DMRS_ScramblingID)
+   schReqList->list.array[idx]->sr_ProhibitTimer = NULLP;
+   DU_ALLOC(schReqList->list.array[idx]->sr_ProhibitTimer, sizeof(long));
+   if(!schReqList->list.array[idx]->sr_ProhibitTimer)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildControlRSetToAddModList");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildSchedulingReqConfig");
       return RFAILED;
    }
-   *(controlRSet->pdcch_DMRS_ScramblingID) = SCRAMBLING_ID;
+   *(schReqList->list.array[idx]->sr_ProhibitTimer) = SR_PROHIBIT_TMR;
+   schReqList->list.array[idx]->sr_TransMax = SR_TRANS_MAX;
+   schedulingRequestConfig->schedulingRequestToReleaseList = NULLP;
 
    return ROK;
-} /* End BuildControlRSetToAddModList */
+}
 
 /*******************************************************************
  *
- * @brief Build search space to add/modify list
+ * @brief Builds RLC Config
  *
  * @details
  *
- *    Function : BuildSearchSpcToAddModList
+ *    Function : BuildRlcConfig
  *
- *    Functionality: Build search space to add/modify list
+ *    Functionality: Builds RLC Config in BuildRlcBearerToAddModList 
+ *
+ * @params[in] RLC_Config *rlcConfig
  *
- * @params[in] 
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-   uint8_t BuildSearchSpcToAddModList
-(
- struct PDCCH_Config__searchSpacesToAddModList *searchSpcList
- )
+uint8_t BuildRlcConfig(struct RLC_Config *rlcConfig)
 {
-   uint8_t idx;
-   uint8_t numBytes;
-   uint8_t byteIdx;
-   uint8_t bitsUnused;
-   uint8_t elementCnt;
-   struct SearchSpace *searchSpc;
 
-   elementCnt = 1;
-   searchSpcList->list.count = elementCnt;
-   searchSpcList->list.size = elementCnt * sizeof(struct SearchSpace *);
+   rlcConfig->present = RLC_Config_PR_am;
 
-   searchSpcList->list.array = NULLP;
-   DU_ALLOC(searchSpcList->list.array, searchSpcList->list.size);
-   if(!searchSpcList->list.array)
+   rlcConfig->choice.am = NULLP;
+   DU_ALLOC(rlcConfig->choice.am, sizeof(struct RLC_Config__am));
+   if(!rlcConfig->choice.am)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSearchSpcToAddModList");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildRlcConfig");
       return RFAILED;
    }
 
-   for(idx = 0; idx < elementCnt; idx++)
-   {
-      searchSpcList->list.array[idx] = NULLP;
-      DU_ALLOC(searchSpcList->list.array[idx], sizeof(struct SearchSpace));
-      if(!searchSpcList->list.array[idx])
-      {
-        DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSearchSpcToAddModList");
-        return RFAILED;
-      }
-   }
-
-   idx = 0;
-   searchSpc = searchSpcList->list.array[idx];
-
-   searchSpc->searchSpaceId = PDCCH_SRCH_SPC_TWO_ID;
-
-   searchSpc->controlResourceSetId = NULLP;
-   DU_ALLOC(searchSpc->controlResourceSetId, sizeof(ControlResourceSetId_t));
-   if(!searchSpc->controlResourceSetId)
+   /* UL */
+   rlcConfig->choice.am->ul_AM_RLC.sn_FieldLength = NULLP;
+   DU_ALLOC(rlcConfig->choice.am->ul_AM_RLC.sn_FieldLength, sizeof(SN_FieldLengthAM_t));
+   if(!rlcConfig->choice.am->ul_AM_RLC.sn_FieldLength)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSearchSpcToAddModList");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildRlcConfig");
       return RFAILED;
    }
-   *(searchSpc->controlResourceSetId) = PDCCH_CTRL_RSRC_SET_ONE_ID;
+   *(rlcConfig->choice.am->ul_AM_RLC.sn_FieldLength) = SN_FIELD_LEN;
+   rlcConfig->choice.am->ul_AM_RLC.t_PollRetransmit  = T_POLL_RETRANSMIT;
+   rlcConfig->choice.am->ul_AM_RLC.pollPDU           = POLL_PDU;
+   rlcConfig->choice.am->ul_AM_RLC.pollByte          = POLL_BYTE;
+   rlcConfig->choice.am->ul_AM_RLC.maxRetxThreshold  = MAX_RETX_THRESHOLD;
 
-   searchSpc->monitoringSlotPeriodicityAndOffset = NULLP;
-   DU_ALLOC(searchSpc->monitoringSlotPeriodicityAndOffset, \
-        sizeof(struct SearchSpace__monitoringSlotPeriodicityAndOffset));
-   if(!searchSpc->monitoringSlotPeriodicityAndOffset)
+   /* DL */
+   rlcConfig->choice.am->dl_AM_RLC.sn_FieldLength = NULLP;
+   DU_ALLOC(rlcConfig->choice.am->dl_AM_RLC.sn_FieldLength, sizeof(SN_FieldLengthAM_t)); 
+   if(!rlcConfig->choice.am->dl_AM_RLC.sn_FieldLength)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSearchSpcToAddModList");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildRlcConfig");
       return RFAILED;
    }
-   searchSpc->monitoringSlotPeriodicityAndOffset->present = \
-                                                           SearchSpace__monitoringSlotPeriodicityAndOffset_PR_sl1;
+   *(rlcConfig->choice.am->dl_AM_RLC.sn_FieldLength) = SN_FIELD_LEN;
+   rlcConfig->choice.am->dl_AM_RLC.t_Reassembly      = T_REASSEMBLY;
+   rlcConfig->choice.am->dl_AM_RLC.t_StatusProhibit  = T_STATUS_PROHIBHIT;
 
-   searchSpc->duration = NULLP;
-   searchSpc->monitoringSymbolsWithinSlot = NULLP;
-   DU_ALLOC(searchSpc->monitoringSymbolsWithinSlot, sizeof(BIT_STRING_t));
-   if(!searchSpc->monitoringSymbolsWithinSlot)
+   return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Builds MAC LC Config
+ *
+ * @details
+ *
+ *    Function : BuildMacLCConfig 
+ *
+ *    Functionality: Builds MAC LC Config in BuildRlcBearerToAddModList 
+ *
+ * @params[in] struct LogicalChannelConfig macLcConfig
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t BuildMacLCConfig(struct LogicalChannelConfig *macLcConfig)
+{
+
+   macLcConfig->ul_SpecificParameters = NULLP;
+   DU_ALLOC(macLcConfig->ul_SpecificParameters, sizeof(struct LogicalChannelConfig__ul_SpecificParameters));
+   if(!macLcConfig->ul_SpecificParameters)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSearchSpcToAddModList");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildMacLCConfig");
       return RFAILED;
    }
 
-   /* Values taken from reference logs :
-    * size 2 bytes
-    * 2 LSBs unsued
-    * Bit string stores 8000
-    */
-   numBytes = 2;
-   bitsUnused = 2;
-
-   searchSpc->monitoringSymbolsWithinSlot->size = numBytes * sizeof(uint8_t);
-   searchSpc->monitoringSymbolsWithinSlot->buf = NULLP;
-   DU_ALLOC(searchSpc->monitoringSymbolsWithinSlot->buf, \
-        searchSpc->monitoringSymbolsWithinSlot->size);
-   if(!searchSpc->monitoringSymbolsWithinSlot->buf)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSearchSpcToAddModList");
-      return RFAILED;
-   }
-
-   byteIdx = 0;
-   searchSpc->monitoringSymbolsWithinSlot->buf[byteIdx++] = \
-                                                           PDCCH_SYMBOL_WITHIN_SLOT /* setting MSB to 128 i.e. 0x80 */;
-   searchSpc->monitoringSymbolsWithinSlot->buf[byteIdx++] = 0;
-   searchSpc->monitoringSymbolsWithinSlot->bits_unused = bitsUnused;
+   macLcConfig->ul_SpecificParameters->priority = MAC_LC_PRIORITY;
+   macLcConfig->ul_SpecificParameters->prioritisedBitRate =    PRIORTISIED_BIT_RATE;
+   macLcConfig->ul_SpecificParameters->bucketSizeDuration =    BUCKET_SIZE_DURATION;
+   macLcConfig->ul_SpecificParameters->allowedServingCells = NULLP;
+   macLcConfig->ul_SpecificParameters->allowedSCS_List = NULLP;
+   macLcConfig->ul_SpecificParameters->maxPUSCH_Duration = NULLP;
+   macLcConfig->ul_SpecificParameters->configuredGrantType1Allowed = NULLP;
 
-   searchSpc->nrofCandidates = NULLP;
-   DU_ALLOC(searchSpc->nrofCandidates, sizeof(struct SearchSpace__nrofCandidates));
-   if(!searchSpc->nrofCandidates)
+   macLcConfig->ul_SpecificParameters->logicalChannelGroup = NULLP;
+   DU_ALLOC(macLcConfig->ul_SpecificParameters->logicalChannelGroup,   sizeof(long));
+   if(!macLcConfig->ul_SpecificParameters->logicalChannelGroup)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSearchSpcToAddModList");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildMacLCConfig");
       return RFAILED;
    }
+   *(macLcConfig->ul_SpecificParameters->logicalChannelGroup) = LC_GRP;
 
-   searchSpc->nrofCandidates->aggregationLevel1 = \
-                                                 PDCCH_SRCH_SPC_TWO_AGG_LVL1_CANDIDATE;
-   searchSpc->nrofCandidates->aggregationLevel2 = \
-                                                 PDCCH_SRCH_SPC_TWO_AGG_LVL2_CANDIDATE;
-   searchSpc->nrofCandidates->aggregationLevel4 = \
-                                                 PDCCH_SRCH_SPC_TWO_AGG_LVL4_CANDIDATE;
-   searchSpc->nrofCandidates->aggregationLevel8 = \
-                                                 PDCCH_SRCH_SPC_TWO_AGG_LVL8_CANDIDATE;
-   searchSpc->nrofCandidates->aggregationLevel16 = \
-                                                  PDCCH_SRCH_SPC_TWO_AGG_LVL16_CANDIDATE;
-
-   searchSpc->searchSpaceType = NULLP;
-   DU_ALLOC(searchSpc->searchSpaceType, sizeof(struct SearchSpace__searchSpaceType));
-   if(!searchSpc->searchSpaceType)
+   macLcConfig->ul_SpecificParameters->schedulingRequestID = NULLP;
+   DU_ALLOC(macLcConfig->ul_SpecificParameters->schedulingRequestID,   sizeof(SchedulingRequestId_t));
+   if(!macLcConfig->ul_SpecificParameters->schedulingRequestID)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSearchSpcToAddModList");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildMacLCConfig");
       return RFAILED;
    }
+   *(macLcConfig->ul_SpecificParameters->schedulingRequestID) = SCH_REQ_ID;
 
-   searchSpc->searchSpaceType->present = SearchSpace__searchSpaceType_PR_ue_Specific;
-
-   searchSpc->searchSpaceType->choice.ue_Specific = NULLP;
-   DU_ALLOC(searchSpc->searchSpaceType->choice.ue_Specific, \
-        sizeof(struct SearchSpace__searchSpaceType__ue_Specific));
-   if(!searchSpc->searchSpaceType->choice.ue_Specific)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSearchSpcToAddModList");
-      return RFAILED;
-   }  
-   searchSpc->searchSpaceType->choice.ue_Specific->dci_Formats = \
-                                                                PDCCH_SRCH_SPC_TWO_UE_SPEC_DCI_FORMAT;
+   macLcConfig->ul_SpecificParameters->logicalChannelSR_Mask = false;
+   macLcConfig->ul_SpecificParameters->logicalChannelSR_DelayTimerApplied = false;
+   macLcConfig->ul_SpecificParameters->bitRateQueryProhibitTimer = NULLP;
 
    return ROK;
-}/* End BuildSearchSpcToAddModList */
+}
 
 /*******************************************************************
  *
- * @brief Builds BWP DL dedicated PDCCH config
+ * @brief Builds RLC Bearer to Add/Mod list
  *
  * @details
  *
- *    Function : BuildBWPDlDedPdcchCfg
+ *    Function :BuildRlcBearerToAddModList 
  *
- *    Functionality: Builds BWP DL dedicated PDCCH config
+ *    Functionality: Builds RLC Bearer to Add/Mod list in DuToCuRrcContainer
  *
- * @params[in] struct PDCCH_Config *pdcchCfg
+ * @params[in] rlc_BearerToAddModList
  *
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint8_t BuildBWPDlDedPdcchCfg(struct PDCCH_Config *pdcchCfg)
+uint8_t BuildRlcBearerToAddModList(struct CellGroupConfigRrc__rlc_BearerToAddModList *rlcBearerList)
 {
-   pdcchCfg->controlResourceSetToAddModList = NULLP;
-   DU_ALLOC(pdcchCfg->controlResourceSetToAddModList, \
-        sizeof(struct PDCCH_Config__controlResourceSetToAddModList));
-   if(!pdcchCfg->controlResourceSetToAddModList)
+   uint8_t                     idx, elementCnt;
+
+   elementCnt = 1;
+   rlcBearerList->list.count = elementCnt;
+   rlcBearerList->list.size  = elementCnt * sizeof(struct RLC_BearerConfig *);
+
+   rlcBearerList->list.array = NULLP;
+   DU_ALLOC(rlcBearerList->list.array, rlcBearerList->list.size);
+   if(!rlcBearerList->list.array)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPDlDedPdcchCfg");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildRlcBearerToAddModList");
       return RFAILED;
    }
 
-   if(BuildControlRSetToAddModList(pdcchCfg->controlResourceSetToAddModList) != ROK)
+   for(idx=0; idx<rlcBearerList->list.count; idx++)
    {
-      return RFAILED;
+      rlcBearerList->list.array[idx] = NULLP;
+      DU_ALLOC(rlcBearerList->list.array[idx], sizeof(struct RLC_BearerConfig));
+      if(!rlcBearerList->list.array[idx])
+      {
+        DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildRlcBearerToAddModList");
+        return RFAILED;
+      }
    }
 
-   pdcchCfg->controlResourceSetToReleaseList = NULLP;
+   idx = 0;
+   rlcBearerList->list.array[idx]->logicalChannelIdentity = SRB1_LCID;
 
-   pdcchCfg->searchSpacesToAddModList = NULLP;
-   DU_ALLOC(pdcchCfg->searchSpacesToAddModList, \
-        sizeof(struct PDCCH_Config__searchSpacesToAddModList));
-   if(!pdcchCfg->searchSpacesToAddModList)
+   DU_ALLOC(rlcBearerList->list.array[idx]->servedRadioBearer, \
+      sizeof(struct RLC_BearerConfig__servedRadioBearer));
+   if(!rlcBearerList->list.array[idx]->servedRadioBearer)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPDlDedPdcchCfg");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildRlcBearerToAddModList");
       return RFAILED;
    }
 
-   if(BuildSearchSpcToAddModList(pdcchCfg->searchSpacesToAddModList) != ROK)
+   rlcBearerList->list.array[idx]->servedRadioBearer->present = \
+      RLC_BearerConfig__servedRadioBearer_PR_srb_Identity;
+   rlcBearerList->list.array[idx]->servedRadioBearer->choice.srb_Identity = \
+      SRB1_LCID;
+
+   rlcBearerList->list.array[idx]->reestablishRLC = NULLP;
+   rlcBearerList->list.array[idx]->rlc_Config = NULLP;
+   DU_ALLOC(rlcBearerList->list.array[idx]->rlc_Config, sizeof(struct RLC_Config));
+   if(!rlcBearerList->list.array[idx]->rlc_Config)
    {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildRlcBearerToAddModList");
       return RFAILED;
    }
 
-   pdcchCfg->searchSpacesToReleaseList = NULLP;
-   pdcchCfg->downlinkPreemption = NULLP;
-   pdcchCfg->tpc_PUSCH = NULLP;
-   pdcchCfg->tpc_PUCCH = NULLP;
-   pdcchCfg->tpc_SRS = NULLP;
-
-   return ROK;
-}
-
-/*******************************************************************
- *
- * @brief Builds DMRS DL PDSCH Mapping type A
- *
- * @details
- *
- *    Function : BuildDMRSDLPdschMapTypeA
- *
- *    Functionality: Builds DMRS DL PDSCH Mapping type A
- *
- * @params[in]
- * struct PDSCH_Config__dmrs_DownlinkForPDSCH_MappingTypeA *dmrsDlCfg
- * @return ROK     - success
- *         RFAILED - failure
- *
- * ****************************************************************/
-   uint8_t BuildDMRSDLPdschMapTypeA
-(
- struct PDSCH_Config__dmrs_DownlinkForPDSCH_MappingTypeA *dmrsDlCfg
- )
-{
-   dmrsDlCfg->present = PDSCH_Config__dmrs_DownlinkForPDSCH_MappingTypeA_PR_setup;
-   dmrsDlCfg->choice.setup = NULLP;
-   DU_ALLOC(dmrsDlCfg->choice.setup, sizeof(struct DMRS_DownlinkConfig));
-   if(!dmrsDlCfg->choice.setup)
+   if(BuildRlcConfig(rlcBearerList->list.array[idx]->rlc_Config) != ROK)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPDlDedPdschCfg");
+      DU_LOG("\nERROR  -->  F1AP : BuildRlcConfig failed");
       return RFAILED;
    }
 
-   dmrsDlCfg->choice.setup->dmrs_Type = NULLP;
-   dmrsDlCfg->choice.setup->dmrs_AdditionalPosition = NULLP;
-   DU_ALLOC(dmrsDlCfg->choice.setup->dmrs_AdditionalPosition, sizeof(long));
-   if(!dmrsDlCfg->choice.setup->dmrs_AdditionalPosition)
+   rlcBearerList->list.array[idx]->mac_LogicalChannelConfig = NULLP;
+   DU_ALLOC(rlcBearerList->list.array[idx]->mac_LogicalChannelConfig, \
+      sizeof(struct LogicalChannelConfig));
+   if(!rlcBearerList->list.array[idx]->mac_LogicalChannelConfig)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildDMRSDLPdschMapTypeA");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildRlcBearerToAddModList");
       return RFAILED;
    }
-   *(dmrsDlCfg->choice.setup->dmrs_AdditionalPosition) = DMRS_ADDITIONAL_POS;
-
-   dmrsDlCfg->choice.setup->maxLength = NULLP;
-   dmrsDlCfg->choice.setup->scramblingID0 = NULLP;
-   dmrsDlCfg->choice.setup->scramblingID1 = NULLP;
-   dmrsDlCfg->choice.setup->phaseTrackingRS = NULLP;
 
-   return ROK;
-}
+   if(BuildMacLCConfig(rlcBearerList->list.array[idx]->mac_LogicalChannelConfig) != ROK)
+   {
+      DU_LOG("\nERROR  -->  F1AP : BuildMacLCConfig failed");
+      return RFAILED;
+   }
 
-/*******************************************************************
- *
- * @brief Builds TCI states to add/modify list
- *
- * @details
- *
- *    Function : BuildTCIStatesToAddModList
- *
- *    Functionality:Builds TCI states to add/modify list
- *
- * @params[in] 
- * struct PDSCH_Config__tci_StatesToAddModList *tciStatesList
- *
- * @return ROK     - success
- *         RFAILED - failure
- *
- * ****************************************************************/
-uint8_t BuildTCIStatesToAddModList(struct PDSCH_Config__tci_StatesToAddModList *tciStatesList)
-{
    return ROK;
 }
 
 /*******************************************************************
  *
- * @brief Builds PDSCH time domain allocation list
+ * @brief Build Control resource set to add/modify list 
  *
  * @details
  *
- *    Function : BuildPdschTimeDomAllocList
+ *    Function : BuildControlRSetToAddModList
  *
- *    Functionality: Builds PDSCH time domain allocation list
+ *    Functionality: Build Control resource set to add/modify list
  *
  * @params[in] 
- * struct PDSCH_Config__pdsch_TimeDomainAllocationList *timeDomAllocList
+ * struct PDCCH_Config__controlResourceSetToAddModList *controlRSetList
  *
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-   uint8_t BuildPdschTimeDomAllocList
+   uint8_t BuildControlRSetToAddModList
 (
- struct PDSCH_Config__pdsch_TimeDomainAllocationList *timeDomAllocList
+ struct PDCCH_Config__controlResourceSetToAddModList *controlRSetList
  )
 {
    uint8_t idx;
    uint8_t elementCnt;
-   struct PDSCH_TimeDomainResourceAllocation *timeDomAlloc;
-
-   timeDomAllocList->present = \
-                              PDSCH_Config__pdsch_TimeDomainAllocationList_PR_setup;
+   uint8_t numBytes, bitsUnused;
+   struct ControlResourceSet *controlRSet;
+   uint8_t freqDomainResource[FREQ_DOM_RSRC_SIZE] = {0};
+   uint8_t coreset0EndPrb, coreset1StartPrb, coreset1NumPrb;
 
-   timeDomAllocList->choice.setup = NULLP;
-   DU_ALLOC(timeDomAllocList->choice.setup, \
-        sizeof(struct PDSCH_TimeDomainResourceAllocationList));
-   if(!timeDomAllocList->choice.setup)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPdschTimeDomAllocList");
-      return RFAILED;
-   }
 
    elementCnt = 1;
-   timeDomAllocList->choice.setup->list.count = elementCnt;
-   timeDomAllocList->choice.setup->list.size = \
-                                              elementCnt * sizeof(struct PDSCH_TimeDomainResourceAllocation *);
+   controlRSetList->list.count = elementCnt;
+   controlRSetList->list.size = \
+                               elementCnt * sizeof(struct ControlResourceSet *);
 
-   timeDomAllocList->choice.setup->list.array = NULLP;
-   DU_ALLOC(timeDomAllocList->choice.setup->list.array, \
-        timeDomAllocList->choice.setup->list.size);
-   if(!timeDomAllocList->choice.setup->list.array)
+   controlRSetList->list.array = NULLP;
+   DU_ALLOC(controlRSetList->list.array, controlRSetList->list.size);
+   if(!controlRSetList->list.array)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPdschTimeDomAllocList");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildControlRSetToAddModList");
       return RFAILED;
    }
 
    for(idx = 0; idx < elementCnt; idx++)
    {
-      timeDomAllocList->choice.setup->list.array[idx] = NULLP;
-      DU_ALLOC(timeDomAllocList->choice.setup->list.array[idx], \
-           sizeof(struct PDSCH_TimeDomainResourceAllocation));
-      if(!timeDomAllocList->choice.setup->list.array[idx])
+      controlRSetList->list.array[idx] = NULLP;
+      DU_ALLOC(controlRSetList->list.array[idx], sizeof(struct ControlResourceSet));
+      if(!controlRSetList->list.array[idx])
       {
-        DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPdschTimeDomAllocList");
+        DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildControlRSetToAddModList");
         return RFAILED;
       }
    }
 
-   idx = 0;
-   timeDomAlloc = timeDomAllocList->choice.setup->list.array[idx];
+   idx=0;
+   controlRSet = controlRSetList->list.array[idx];
 
-   timeDomAlloc->k0 = NULLP;
-   timeDomAlloc->mappingType = PDSCH_MAPPING_TYPE_A;
-   timeDomAlloc->startSymbolAndLength = \
-                                       calcSliv(PDSCH_START_SYMBOL, PDSCH_LENGTH_SYMBOL);
+   controlRSet->controlResourceSetId = PDCCH_CTRL_RSRC_SET_ONE_ID;
 
-   return ROK;
-}
+   /* size 6 bytes
+    * 3 LSBs unsued
+    * Bit string stored ff0000000000
+    */
+   numBytes = 6;
+   bitsUnused = 3;
+   controlRSet->frequencyDomainResources.size = numBytes * sizeof(uint8_t);
 
-/*******************************************************************
- *
- * @brief Builds PDSCH PRB Bundling type
- *
- * @details
- *
- *    Function : BuildPdschPrbBundlingType
- *
- *    Functionality: Builds PDSCH PRB Bundling type
- *
- * @params[in] 
- * struct PDSCH_Config__prb_BundlingType *prbBndlType
- *
- * @return ROK     - success
- *         RFAILED - failure
- *
- * ****************************************************************/
-   uint8_t BuildPdschPrbBundlingType
-(
- struct PDSCH_Config__prb_BundlingType *prbBndlType
- )
-{
-   prbBndlType->present = PDSCH_Config__prb_BundlingType_PR_staticBundling;
+   controlRSet->frequencyDomainResources.buf = NULLP;
+   DU_ALLOC(controlRSet->frequencyDomainResources.buf, \
+        controlRSet->frequencyDomainResources.size);
+   if(!controlRSet->frequencyDomainResources.buf)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildControlRSetToAddModList");
+      return RFAILED;
+   }
 
-   prbBndlType->choice.staticBundling = NULLP;
-   DU_ALLOC(prbBndlType->choice.staticBundling, \
-        sizeof(struct PDSCH_Config__prb_BundlingType__staticBundling));
-   if(!prbBndlType->choice.staticBundling)
+   memset(controlRSet->frequencyDomainResources.buf, 0, FREQ_DOM_RSRC_SIZE);
+   coreset0EndPrb = CORESET0_END_PRB;
+   coreset1StartPrb = coreset0EndPrb + 6;
+   coreset1NumPrb = CORESET1_NUM_PRB;
+   /* calculate the PRBs */
+   freqDomRscAllocType0(((coreset1StartPrb)/6), (coreset1NumPrb/6), freqDomainResource);
+   memcpy(controlRSet->frequencyDomainResources.buf, freqDomainResource, FREQ_DOM_RSRC_SIZE);
+   controlRSet->frequencyDomainResources.bits_unused = bitsUnused;
+
+   controlRSet->duration = PDCCH_CTRL_RSRC_SET_ONE_DURATION;
+   controlRSet->cce_REG_MappingType.present = \
+                                             ControlResourceSet__cce_REG_MappingType_PR_nonInterleaved;
+
+   controlRSet->precoderGranularity = PDCCH_CTRL_RSRC_SET_ONE_PRECOD_GRANULARITY;
+   controlRSet->tci_StatesPDCCH_ToAddList = NULLP;
+   controlRSet->tci_StatesPDCCH_ToReleaseList = NULLP;
+   controlRSet->tci_PresentInDCI = NULLP;
+#if 0
+   uint8_t tciStateIdx;
+
+   DU_ALLOC(controlRset->tci_StatesPDCCH_ToAddList, \
+        sizeof(struct ControlResourceSet__tci_StatesPDCCH_ToAddList));
+   if(!controlRset->tci_StatesPDCCH_ToAddList)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPdschPrbBundlingType");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildControlRSetToAddModList");
       return RFAILED;
    }
-   prbBndlType->choice.staticBundling->bundleSize = NULLP;
+
+   elementCnt = 1;
+   controlRset->tci_StatesPDCCH_ToAddList->list.count = elementCnt;
+   controlRset->tci_StatesPDCCH_ToAddList->list.size = elementCnt * sizeof(TCI_StateId_t *);
+   DU_ALLOC(controlRset->tci_StatesPDCCH_ToAddList->list.array, \
+        controlRset->tci_StatesPDCCH_ToAddList->list.size)
+      if(!controlRset->tci_StatesPDCCH_ToAddList->list.array)
+      {
+        DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildControlRSetToAddModList");
+        return RFAILED;
+      }
+
+   for(tciStateIdx = 0; tciStateIdx <elementCntl; tciStateIdx++)
+   {
+      DU_ALLOC(controlRset->tci_StatesPDCCH_ToAddList->list.array[tciStateIdx], sizeof(TCI_StateId_t));
+      if(!controlRset->tci_StatesPDCCH_ToAddList->list.array[tciStateIdx])
+      {
+        DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildControlRSetToAddModList");
+        return RFAILED;
+      }
+   }
+
+   tciStateIdx = 0;
+   /* TODO */
+   *(controlRset->tci_StatesPDCCH_ToAddList->list.array[tciStateIdx]);
+
+   DU_ALLOC(controlRset->tci_PresentInDCI, sizeof(long));
+   if(!controlRset->tci_PresentInDCI)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildControlRSetToAddModList");
+      return RFAILED;
+   }
+   /* TODO */
+   *(controlRset->tci_PresentInDCI);
+#endif
+
+   controlRSet->pdcch_DMRS_ScramblingID = NULLP;
+   DU_ALLOC(controlRSet->pdcch_DMRS_ScramblingID, sizeof(long));
+   if(!controlRSet->pdcch_DMRS_ScramblingID)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildControlRSetToAddModList");
+      return RFAILED;
+   }
+   *(controlRSet->pdcch_DMRS_ScramblingID) = SCRAMBLING_ID;
 
    return ROK;
-}
+} /* End BuildControlRSetToAddModList */
 
 /*******************************************************************
  *
- * @brief Builds BWP DL dedicated PDSCH config 
+ * @brief Build search space to add/modify list
  *
  * @details
  *
- *    Function : BuildBWPDlDedPdschCfg
- *
- *    Functionality: Builds BWP DL dedicated PDSCH config
+ *    Function : BuildSearchSpcToAddModList
  *
- * @params[in] struct PDSCH_Config *pdschCfg
+ *    Functionality: Build search space to add/modify list
  *
+ * @params[in] 
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint8_t BuildBWPDlDedPdschCfg(struct PDSCH_Config *pdschCfg)
+   uint8_t BuildSearchSpcToAddModList
+(
+ struct PDCCH_Config__searchSpacesToAddModList *searchSpcList
+ )
 {
-   pdschCfg->dataScramblingIdentityPDSCH = NULLP;
+   uint8_t idx;
+   uint8_t numBytes;
+   uint8_t byteIdx;
+   uint8_t bitsUnused;
+   uint8_t elementCnt;
+   struct SearchSpace *searchSpc;
 
-   pdschCfg->dmrs_DownlinkForPDSCH_MappingTypeA = NULLP;
-   DU_ALLOC(pdschCfg->dmrs_DownlinkForPDSCH_MappingTypeA, \
-        sizeof(struct PDSCH_Config__dmrs_DownlinkForPDSCH_MappingTypeA));
-   if(!pdschCfg->dmrs_DownlinkForPDSCH_MappingTypeA)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPDlDedPdschCfg");
-      return RFAILED;
-   }
+   elementCnt = 1;
+   searchSpcList->list.count = elementCnt;
+   searchSpcList->list.size = elementCnt * sizeof(struct SearchSpace *);
 
-   if(BuildDMRSDLPdschMapTypeA(pdschCfg->dmrs_DownlinkForPDSCH_MappingTypeA) != ROK)
+   searchSpcList->list.array = NULLP;
+   DU_ALLOC(searchSpcList->list.array, searchSpcList->list.size);
+   if(!searchSpcList->list.array)
    {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSearchSpcToAddModList");
       return RFAILED;
    }
 
-   pdschCfg->dmrs_DownlinkForPDSCH_MappingTypeB = NULLP;
-   pdschCfg->tci_StatesToAddModList = NULLP;
-   pdschCfg->tci_StatesToReleaseList = NULLP;
-   pdschCfg->vrb_ToPRB_Interleaver = NULLP;
-#if 0
-   DU_ALLOC(pdschCfg->tci_StatesToAddModList, sizeof(struct PDSCH_Config__tci_StatesToAddModList));
-   if(!pdschCfg->tci_StatesToAddModList)
+   for(idx = 0; idx < elementCnt; idx++)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPDlDedPdschCfg");
-      return RFAILED;
+      searchSpcList->list.array[idx] = NULLP;
+      DU_ALLOC(searchSpcList->list.array[idx], sizeof(struct SearchSpace));
+      if(!searchSpcList->list.array[idx])
+      {
+        DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSearchSpcToAddModList");
+        return RFAILED;
+      }
    }
-   if(BuildTCIStatesToAddModList(pdschCfg->tci_StatesToAddModList) != ROK)
+
+   idx = 0;
+   searchSpc = searchSpcList->list.array[idx];
+
+   searchSpc->searchSpaceId = PDCCH_SRCH_SPC_TWO_ID;
+
+   searchSpc->controlResourceSetId = NULLP;
+   DU_ALLOC(searchSpc->controlResourceSetId, sizeof(ControlResourceSetId_t));
+   if(!searchSpc->controlResourceSetId)
    {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSearchSpcToAddModList");
       return RFAILED;
    }
-#endif
-
-   pdschCfg->resourceAllocation = RES_ALLOC_TYPE;
+   *(searchSpc->controlResourceSetId) = PDCCH_CTRL_RSRC_SET_ONE_ID;
 
-   pdschCfg->pdsch_TimeDomainAllocationList = NULLP;
-   DU_ALLOC(pdschCfg->pdsch_TimeDomainAllocationList, \
-        sizeof(struct PDSCH_Config__pdsch_TimeDomainAllocationList));
-   if(!pdschCfg->pdsch_TimeDomainAllocationList)
+   searchSpc->monitoringSlotPeriodicityAndOffset = NULLP;
+   DU_ALLOC(searchSpc->monitoringSlotPeriodicityAndOffset, \
+        sizeof(struct SearchSpace__monitoringSlotPeriodicityAndOffset));
+   if(!searchSpc->monitoringSlotPeriodicityAndOffset)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPDlDedPdschCfg");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSearchSpcToAddModList");
       return RFAILED;
    }
+   searchSpc->monitoringSlotPeriodicityAndOffset->present = \
+                                                           SearchSpace__monitoringSlotPeriodicityAndOffset_PR_sl1;
 
-   if(BuildPdschTimeDomAllocList(pdschCfg->pdsch_TimeDomainAllocationList) != ROK)
+   searchSpc->duration = NULLP;
+   searchSpc->monitoringSymbolsWithinSlot = NULLP;
+   DU_ALLOC(searchSpc->monitoringSymbolsWithinSlot, sizeof(BIT_STRING_t));
+   if(!searchSpc->monitoringSymbolsWithinSlot)
    {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSearchSpcToAddModList");
       return RFAILED;
    }
 
-   pdschCfg->pdsch_AggregationFactor = NULLP;
-   pdschCfg->rateMatchPatternToAddModList = NULLP;
-   pdschCfg->rateMatchPatternToReleaseList = NULLP;
-   pdschCfg->rateMatchPatternGroup1 = NULLP;
-   pdschCfg->rateMatchPatternGroup2 = NULLP;
-   pdschCfg->rbg_Size = PDSCH_RBG_SIZE;
-   pdschCfg->mcs_Table = NULLP;
+   /* Values taken from reference logs :
+    * size 2 bytes
+    * 2 LSBs unsued
+    * Bit string stores 8000
+    */
+   numBytes = 2;
+   bitsUnused = 2;
 
-   pdschCfg->maxNrofCodeWordsScheduledByDCI = NULLP;
-   DU_ALLOC(pdschCfg->maxNrofCodeWordsScheduledByDCI, sizeof(long));
-   if(!pdschCfg->maxNrofCodeWordsScheduledByDCI)
+   searchSpc->monitoringSymbolsWithinSlot->size = numBytes * sizeof(uint8_t);
+   searchSpc->monitoringSymbolsWithinSlot->buf = NULLP;
+   DU_ALLOC(searchSpc->monitoringSymbolsWithinSlot->buf, \
+        searchSpc->monitoringSymbolsWithinSlot->size);
+   if(!searchSpc->monitoringSymbolsWithinSlot->buf)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPDlDedPdschCfg");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSearchSpcToAddModList");
       return RFAILED;
    }
-   *(pdschCfg->maxNrofCodeWordsScheduledByDCI) = PDSCH_MAX_CODEWORD_SCH_BY_DCI;
 
-   if(BuildPdschPrbBundlingType(&pdschCfg->prb_BundlingType) != ROK)
+   byteIdx = 0;
+   searchSpc->monitoringSymbolsWithinSlot->buf[byteIdx++] = \
+                                                           PDCCH_SYMBOL_WITHIN_SLOT /* setting MSB to 128 i.e. 0x80 */;
+   searchSpc->monitoringSymbolsWithinSlot->buf[byteIdx++] = 0;
+   searchSpc->monitoringSymbolsWithinSlot->bits_unused = bitsUnused;
+
+   searchSpc->nrofCandidates = NULLP;
+   DU_ALLOC(searchSpc->nrofCandidates, sizeof(struct SearchSpace__nrofCandidates));
+   if(!searchSpc->nrofCandidates)
    {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSearchSpcToAddModList");
       return RFAILED;
    }
 
-   pdschCfg->zp_CSI_RS_ResourceToAddModList = NULLP;
-   pdschCfg->zp_CSI_RS_ResourceToReleaseList = NULLP;
-   pdschCfg->aperiodic_ZP_CSI_RS_ResourceSetsToAddModList = NULLP;
-   pdschCfg->aperiodic_ZP_CSI_RS_ResourceSetsToReleaseList = NULLP;
-   pdschCfg->sp_ZP_CSI_RS_ResourceSetsToAddModList = NULLP;
-   pdschCfg->sp_ZP_CSI_RS_ResourceSetsToReleaseList = NULLP;
-   pdschCfg->p_ZP_CSI_RS_ResourceSet = NULLP;
+   searchSpc->nrofCandidates->aggregationLevel1 = \
+                                                 PDCCH_SRCH_SPC_TWO_AGG_LVL1_CANDIDATE;
+   searchSpc->nrofCandidates->aggregationLevel2 = \
+                                                 PDCCH_SRCH_SPC_TWO_AGG_LVL2_CANDIDATE;
+   searchSpc->nrofCandidates->aggregationLevel4 = \
+                                                 PDCCH_SRCH_SPC_TWO_AGG_LVL4_CANDIDATE;
+   searchSpc->nrofCandidates->aggregationLevel8 = \
+                                                 PDCCH_SRCH_SPC_TWO_AGG_LVL8_CANDIDATE;
+   searchSpc->nrofCandidates->aggregationLevel16 = \
+                                                  PDCCH_SRCH_SPC_TWO_AGG_LVL16_CANDIDATE;
+
+   searchSpc->searchSpaceType = NULLP;
+   DU_ALLOC(searchSpc->searchSpaceType, sizeof(struct SearchSpace__searchSpaceType));
+   if(!searchSpc->searchSpaceType)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSearchSpcToAddModList");
+      return RFAILED;
+   }
+
+   searchSpc->searchSpaceType->present = SearchSpace__searchSpaceType_PR_ue_Specific;
+
+   searchSpc->searchSpaceType->choice.ue_Specific = NULLP;
+   DU_ALLOC(searchSpc->searchSpaceType->choice.ue_Specific, \
+        sizeof(struct SearchSpace__searchSpaceType__ue_Specific));
+   if(!searchSpc->searchSpaceType->choice.ue_Specific)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSearchSpcToAddModList");
+      return RFAILED;
+   }  
+   searchSpc->searchSpaceType->choice.ue_Specific->dci_Formats = \
+                                                                PDCCH_SRCH_SPC_TWO_UE_SPEC_DCI_FORMAT;
 
    return ROK;
-}
+}/* End BuildSearchSpcToAddModList */
 
 /*******************************************************************
  *
- * @brief Builds intitial DL BWP
+ * @brief Builds BWP DL dedicated PDCCH config
+ *
  * @details
  *
- *    Function : BuildInitialDlBWP 
+ *    Function : BuildBWPDlDedPdcchCfg
  *
- *    Functionality: Builds intitial DL BWP in spCellCfgDed
+ *    Functionality: Builds BWP DL dedicated PDCCH config
  *
- * @params[in] BWP_DownlinkDedicated_t *dlBwp
+ * @params[in] struct PDCCH_Config *pdcchCfg
  *
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint8_t BuildInitialDlBWP(BWP_DownlinkDedicated_t *dlBwp)
+uint8_t BuildBWPDlDedPdcchCfg(struct PDCCH_Config *pdcchCfg)
 {
-   dlBwp->pdcch_Config = NULLP;
-   DU_ALLOC(dlBwp->pdcch_Config, sizeof(struct BWP_DownlinkDedicated__pdcch_Config));
-   if(!dlBwp->pdcch_Config)
+   pdcchCfg->controlResourceSetToAddModList = NULLP;
+   DU_ALLOC(pdcchCfg->controlResourceSetToAddModList, \
+        sizeof(struct PDCCH_Config__controlResourceSetToAddModList));
+   if(!pdcchCfg->controlResourceSetToAddModList)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory Allocation failure in BuildInitialDlBWP");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPDlDedPdcchCfg");
       return RFAILED;
    }
-   dlBwp->pdcch_Config->present = BWP_DownlinkDedicated__pdcch_Config_PR_setup; 
 
-   dlBwp->pdcch_Config->choice.setup = NULLP;
-   DU_ALLOC(dlBwp->pdcch_Config->choice.setup, sizeof(struct PDCCH_Config));
-   if(!dlBwp->pdcch_Config->choice.setup)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory Allocation failure in BuildInitialDlBWP");
-      return RFAILED;
-   }
-   if(BuildBWPDlDedPdcchCfg(dlBwp->pdcch_Config->choice.setup) != ROK)
+   if(BuildControlRSetToAddModList(pdcchCfg->controlResourceSetToAddModList) != ROK)
    {
       return RFAILED;
    }
 
-   dlBwp->pdsch_Config = NULLP;
-   DU_ALLOC(dlBwp->pdsch_Config, sizeof(struct BWP_DownlinkDedicated__pdsch_Config));
-   if(!dlBwp->pdsch_Config)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory Allocation failure in BuildInitialDlBWP");
-      return RFAILED;
-   }
-   dlBwp->pdsch_Config->present = BWP_DownlinkDedicated__pdsch_Config_PR_setup;
+   pdcchCfg->controlResourceSetToReleaseList = NULLP;
 
-   dlBwp->pdsch_Config->choice.setup = NULLP;
-   DU_ALLOC(dlBwp->pdsch_Config->choice.setup, sizeof(struct PDSCH_Config));
-   if(!dlBwp->pdsch_Config->choice.setup)
+   pdcchCfg->searchSpacesToAddModList = NULLP;
+   DU_ALLOC(pdcchCfg->searchSpacesToAddModList, \
+        sizeof(struct PDCCH_Config__searchSpacesToAddModList));
+   if(!pdcchCfg->searchSpacesToAddModList)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory Allocation failure in BuildInitialDlBWP");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPDlDedPdcchCfg");
       return RFAILED;
    }
 
-   if(BuildBWPDlDedPdschCfg(dlBwp->pdsch_Config->choice.setup) != ROK)
+   if(BuildSearchSpcToAddModList(pdcchCfg->searchSpacesToAddModList) != ROK)
    {
       return RFAILED;
    }
 
-   dlBwp->sps_Config = NULLP;
-   dlBwp->radioLinkMonitoringConfig = NULLP; 
+   pdcchCfg->searchSpacesToReleaseList = NULLP;
+   pdcchCfg->downlinkPreemption = NULLP;
+   pdcchCfg->tpc_PUSCH = NULLP;
+   pdcchCfg->tpc_PUCCH = NULLP;
+   pdcchCfg->tpc_SRS = NULLP;
+
    return ROK;
 }
 
 /*******************************************************************
  *
- * @brief Builds DMRS UL Pusch Mapping type A
+ * @brief Builds DMRS DL PDSCH Mapping type A
  *
  * @details
  *
- *    Function : BuildDMRSULPuschMapTypeA
+ *    Function : BuildDMRSDLPdschMapTypeA
  *
- *    Functionality: Builds DMRS UL Pusch Mapping type A
+ *    Functionality: Builds DMRS DL PDSCH Mapping type A
  *
- * @params[in] 
- *    struct PUSCH_Config__dmrs_UplinkForPUSCH_MappingTypeA *dmrsUlCfg
+ * @params[in]
+ * struct PDSCH_Config__dmrs_DownlinkForPDSCH_MappingTypeA *dmrsDlCfg
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-   uint8_t BuildDMRSULPuschMapTypeA
+   uint8_t BuildDMRSDLPdschMapTypeA
 (
- struct PUSCH_Config__dmrs_UplinkForPUSCH_MappingTypeA *dmrsUlCfg
+ struct PDSCH_Config__dmrs_DownlinkForPDSCH_MappingTypeA *dmrsDlCfg
  )
 {
-   dmrsUlCfg->present = PUSCH_Config__dmrs_UplinkForPUSCH_MappingTypeA_PR_setup;
-   dmrsUlCfg->choice.setup= NULLP;
-   DU_ALLOC(dmrsUlCfg->choice.setup, sizeof(DMRS_UplinkConfig_t));
-   if(!dmrsUlCfg->choice.setup)
+   dmrsDlCfg->present = PDSCH_Config__dmrs_DownlinkForPDSCH_MappingTypeA_PR_setup;
+   dmrsDlCfg->choice.setup = NULLP;
+   DU_ALLOC(dmrsDlCfg->choice.setup, sizeof(struct DMRS_DownlinkConfig));
+   if(!dmrsDlCfg->choice.setup)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildDMRSULPuschMapTypeA");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPDlDedPdschCfg");
       return RFAILED;
    }
 
-   dmrsUlCfg->choice.setup->dmrs_Type = NULLP;
-   dmrsUlCfg->choice.setup->dmrs_AdditionalPosition = NULLP;
-   DU_ALLOC(dmrsUlCfg->choice.setup->dmrs_AdditionalPosition, sizeof(long));
-   if(!dmrsUlCfg->choice.setup->dmrs_AdditionalPosition)
+   dmrsDlCfg->choice.setup->dmrs_Type = NULLP;
+   dmrsDlCfg->choice.setup->dmrs_AdditionalPosition = NULLP;
+   DU_ALLOC(dmrsDlCfg->choice.setup->dmrs_AdditionalPosition, sizeof(long));
+   if(!dmrsDlCfg->choice.setup->dmrs_AdditionalPosition)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildDMRSULPuschMapTypeA");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildDMRSDLPdschMapTypeA");
       return RFAILED;
    }
-   *(dmrsUlCfg->choice.setup->dmrs_AdditionalPosition) = DMRS_ADDITIONAL_POS; 
+   *(dmrsDlCfg->choice.setup->dmrs_AdditionalPosition) = DMRS_ADDITIONAL_POS;
 
-   dmrsUlCfg->choice.setup->phaseTrackingRS = NULLP;
-   dmrsUlCfg->choice.setup->maxLength = NULLP;
-   dmrsUlCfg->choice.setup->transformPrecodingDisabled = NULLP;
-   DU_ALLOC(dmrsUlCfg->choice.setup->transformPrecodingDisabled, \
-        sizeof(struct DMRS_UplinkConfig__transformPrecodingDisabled));
-   if(!dmrsUlCfg->choice.setup->transformPrecodingDisabled)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildDMRSULPuschMapTypeA");
-      return RFAILED;
-   }
+   dmrsDlCfg->choice.setup->maxLength = NULLP;
+   dmrsDlCfg->choice.setup->scramblingID0 = NULLP;
+   dmrsDlCfg->choice.setup->scramblingID1 = NULLP;
+   dmrsDlCfg->choice.setup->phaseTrackingRS = NULLP;
 
-   dmrsUlCfg->choice.setup->transformPrecodingDisabled->scramblingID0 = NULLP;
-   DU_ALLOC(dmrsUlCfg->choice.setup->transformPrecodingDisabled->scramblingID0,\
-        sizeof(long));
-   if(!dmrsUlCfg->choice.setup->transformPrecodingDisabled->scramblingID0)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildDMRSULPuschMapTypeA");
-      return RFAILED;
-   }
-   *(dmrsUlCfg->choice.setup->transformPrecodingDisabled->scramblingID0) = SCRAMBLING_ID;
+   return ROK;
+}
 
-   dmrsUlCfg->choice.setup->transformPrecodingDisabled->scramblingID1 = NULLP;
-   dmrsUlCfg->choice.setup->transformPrecodingEnabled = NULLP;
+/*******************************************************************
+ *
+ * @brief Builds TCI states to add/modify list
+ *
+ * @details
+ *
+ *    Function : BuildTCIStatesToAddModList
+ *
+ *    Functionality:Builds TCI states to add/modify list
+ *
+ * @params[in] 
+ * struct PDSCH_Config__tci_StatesToAddModList *tciStatesList
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t BuildTCIStatesToAddModList(struct PDSCH_Config__tci_StatesToAddModList *tciStatesList)
+{
    return ROK;
 }
 
 /*******************************************************************
  *
- * @brief Build PUSCH time domain allocation list
+ * @brief Builds PDSCH time domain allocation list
  *
  * @details
  *
- *    Function : BuildPuschTimeDomAllocList
+ *    Function : BuildPdschTimeDomAllocList
  *
- *    Functionality: Build PUSCH time domain allocation list
+ *    Functionality: Builds PDSCH time domain allocation list
  *
  * @params[in] 
- * struct PUSCH_Config__pusch_TimeDomainAllocationList *timeDomAllocList
+ * struct PDSCH_Config__pdsch_TimeDomainAllocationList *timeDomAllocList
  *
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-   uint8_t BuildPuschTimeDomAllocList
+   uint8_t BuildPdschTimeDomAllocList
 (
- struct PUSCH_Config__pusch_TimeDomainAllocationList *timeDomAllocList
+ struct PDSCH_Config__pdsch_TimeDomainAllocationList *timeDomAllocList
  )
 {
    uint8_t idx;
    uint8_t elementCnt;
-   PUSCH_TimeDomainResourceAllocation_t  *timeDomAlloc;
+   struct PDSCH_TimeDomainResourceAllocation *timeDomAlloc;
+
+   timeDomAllocList->present = \
+                              PDSCH_Config__pdsch_TimeDomainAllocationList_PR_setup;
 
-   timeDomAllocList->present = PUSCH_Config__pusch_TimeDomainAllocationList_PR_setup;
    timeDomAllocList->choice.setup = NULLP;
    DU_ALLOC(timeDomAllocList->choice.setup, \
-        sizeof(struct PUSCH_TimeDomainResourceAllocationList));
+        sizeof(struct PDSCH_TimeDomainResourceAllocationList));
    if(!timeDomAllocList->choice.setup)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPuschTimeDomAllocList");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPdschTimeDomAllocList");
       return RFAILED;
    }
 
    elementCnt = 1;
    timeDomAllocList->choice.setup->list.count = elementCnt;
    timeDomAllocList->choice.setup->list.size = \
-                                              elementCnt * sizeof(PUSCH_TimeDomainResourceAllocation_t *);
+                                              elementCnt * sizeof(struct PDSCH_TimeDomainResourceAllocation *);
+
    timeDomAllocList->choice.setup->list.array = NULLP;
    DU_ALLOC(timeDomAllocList->choice.setup->list.array, \
         timeDomAllocList->choice.setup->list.size);
    if(!timeDomAllocList->choice.setup->list.array)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPuschTimeDomAllocList");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPdschTimeDomAllocList");
       return RFAILED;
    }
 
    for(idx = 0; idx < elementCnt; idx++)
    {
       timeDomAllocList->choice.setup->list.array[idx] = NULLP;
-      DU_ALLOC(timeDomAllocList->choice.setup->list.array[idx],\
-           sizeof(PUSCH_TimeDomainResourceAllocation_t));
+      DU_ALLOC(timeDomAllocList->choice.setup->list.array[idx], \
+           sizeof(struct PDSCH_TimeDomainResourceAllocation));
       if(!timeDomAllocList->choice.setup->list.array[idx])
       {
-        DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPuschTimeDomAllocList");
+        DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPdschTimeDomAllocList");
         return RFAILED;
       }
    }
 
    idx = 0;
    timeDomAlloc = timeDomAllocList->choice.setup->list.array[idx];
-   DU_ALLOC(timeDomAlloc->k2, sizeof(long));
-   if(!timeDomAlloc->k2)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPuschTimeDomAllocList");
-      return RFAILED;
-   }
-   *(timeDomAlloc->k2) = PUSCH_K2;
-   timeDomAlloc->mappingType = PUSCH_MAPPING_TYPE_A;
-   timeDomAlloc->startSymbolAndLength = calcSliv(PUSCH_START_SYMBOL, PUSCH_LENGTH_SYMBOL);
+
+   timeDomAlloc->k0 = NULLP;
+   timeDomAlloc->mappingType = PDSCH_MAPPING_TYPE_A;
+   timeDomAlloc->startSymbolAndLength = \
+                                       calcSliv(PDSCH_START_SYMBOL, PDSCH_LENGTH_SYMBOL);
+
    return ROK;
 }
 
 /*******************************************************************
  *
- * @brief Builds BWP UL dedicated PUSCH Config
+ * @brief Builds PDSCH PRB Bundling type
  *
  * @details
  *
- *    Function : BuildBWPUlDedPuschCfg
+ *    Function : BuildPdschPrbBundlingType
  *
- *    Functionality:
- *      Builds BWP UL dedicated PUSCH Config
+ *    Functionality: Builds PDSCH PRB Bundling type
+ *
+ * @params[in] 
+ * struct PDSCH_Config__prb_BundlingType *prbBndlType
  *
- * @params[in] : PUSCH_Config_t *puschCfg
- *    
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint8_t BuildBWPUlDedPuschCfg(PUSCH_Config_t *puschCfg)
+   uint8_t BuildPdschPrbBundlingType
+(
+ struct PDSCH_Config__prb_BundlingType *prbBndlType
+ )
 {
-   puschCfg->dataScramblingIdentityPUSCH = NULLP;
-   DU_ALLOC(puschCfg->dataScramblingIdentityPUSCH, sizeof(long));
-   if(!puschCfg->dataScramblingIdentityPUSCH)
+   prbBndlType->present = PDSCH_Config__prb_BundlingType_PR_staticBundling;
+
+   prbBndlType->choice.staticBundling = NULLP;
+   DU_ALLOC(prbBndlType->choice.staticBundling, \
+        sizeof(struct PDSCH_Config__prb_BundlingType__staticBundling));
+   if(!prbBndlType->choice.staticBundling)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPUlDedPuschCfg");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPdschPrbBundlingType");
       return RFAILED;
    }
-   *(puschCfg->dataScramblingIdentityPUSCH) = SCRAMBLING_ID;
+   prbBndlType->choice.staticBundling->bundleSize = NULLP;
 
-   puschCfg->txConfig = NULLP;
-   puschCfg->dmrs_UplinkForPUSCH_MappingTypeA = NULLP;
-   DU_ALLOC(puschCfg->dmrs_UplinkForPUSCH_MappingTypeA, \
-        sizeof(struct PUSCH_Config__dmrs_UplinkForPUSCH_MappingTypeA));
-   if(!puschCfg->dmrs_UplinkForPUSCH_MappingTypeA)
+   return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Builds BWP DL dedicated PDSCH config 
+ *
+ * @details
+ *
+ *    Function : BuildBWPDlDedPdschCfg
+ *
+ *    Functionality: Builds BWP DL dedicated PDSCH config
+ *
+ * @params[in] struct PDSCH_Config *pdschCfg
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t BuildBWPDlDedPdschCfg(struct PDSCH_Config *pdschCfg)
+{
+   pdschCfg->dataScramblingIdentityPDSCH = NULLP;
+
+   pdschCfg->dmrs_DownlinkForPDSCH_MappingTypeA = NULLP;
+   DU_ALLOC(pdschCfg->dmrs_DownlinkForPDSCH_MappingTypeA, \
+        sizeof(struct PDSCH_Config__dmrs_DownlinkForPDSCH_MappingTypeA));
+   if(!pdschCfg->dmrs_DownlinkForPDSCH_MappingTypeA)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPUlDedPuschCfg");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPDlDedPdschCfg");
       return RFAILED;
    }
 
-   if(BuildDMRSULPuschMapTypeA(puschCfg->dmrs_UplinkForPUSCH_MappingTypeA) != ROK)
+   if(BuildDMRSDLPdschMapTypeA(pdschCfg->dmrs_DownlinkForPDSCH_MappingTypeA) != ROK)
    {
       return RFAILED;
    }
 
-   puschCfg->dmrs_UplinkForPUSCH_MappingTypeB = NULLP;
-   puschCfg->pusch_PowerControl = NULLP;
-   puschCfg->frequencyHopping = NULLP;
-   puschCfg->frequencyHoppingOffsetLists = NULLP;
-   puschCfg->resourceAllocation = RES_ALLOC_TYPE;
+   pdschCfg->dmrs_DownlinkForPDSCH_MappingTypeB = NULLP;
+   pdschCfg->tci_StatesToAddModList = NULLP;
+   pdschCfg->tci_StatesToReleaseList = NULLP;
+   pdschCfg->vrb_ToPRB_Interleaver = NULLP;
+#if 0
+   DU_ALLOC(pdschCfg->tci_StatesToAddModList, sizeof(struct PDSCH_Config__tci_StatesToAddModList));
+   if(!pdschCfg->tci_StatesToAddModList)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPDlDedPdschCfg");
+      return RFAILED;
+   }
+   if(BuildTCIStatesToAddModList(pdschCfg->tci_StatesToAddModList) != ROK)
+   {
+      return RFAILED;
+   }
+#endif
 
-   puschCfg->pusch_TimeDomainAllocationList = NULLP;
-   DU_ALLOC(puschCfg->pusch_TimeDomainAllocationList, \
-        sizeof(struct PUSCH_Config__pusch_TimeDomainAllocationList));
-   if(!puschCfg->pusch_TimeDomainAllocationList)
+   pdschCfg->resourceAllocation = RES_ALLOC_TYPE;
+
+   pdschCfg->pdsch_TimeDomainAllocationList = NULLP;
+   DU_ALLOC(pdschCfg->pdsch_TimeDomainAllocationList, \
+        sizeof(struct PDSCH_Config__pdsch_TimeDomainAllocationList));
+   if(!pdschCfg->pdsch_TimeDomainAllocationList)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPUlDedPuschCfg");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPDlDedPdschCfg");
       return RFAILED;
    }
 
-   if(BuildPuschTimeDomAllocList(puschCfg->pusch_TimeDomainAllocationList) != ROK)
+   if(BuildPdschTimeDomAllocList(pdschCfg->pdsch_TimeDomainAllocationList) != ROK)
    {
       return RFAILED;
    }
 
-   puschCfg->pusch_AggregationFactor = NULLP;
-   puschCfg->mcs_Table = NULLP;
-   puschCfg->mcs_TableTransformPrecoder = NULLP;
-   puschCfg->transformPrecoder = NULLP;
-   DU_ALLOC(puschCfg->transformPrecoder, sizeof(long));
-   if(!puschCfg->transformPrecoder)
+   pdschCfg->pdsch_AggregationFactor = NULLP;
+   pdschCfg->rateMatchPatternToAddModList = NULLP;
+   pdschCfg->rateMatchPatternToReleaseList = NULLP;
+   pdschCfg->rateMatchPatternGroup1 = NULLP;
+   pdschCfg->rateMatchPatternGroup2 = NULLP;
+   pdschCfg->rbg_Size = PDSCH_RBG_SIZE;
+   pdschCfg->mcs_Table = NULLP;
+
+   pdschCfg->maxNrofCodeWordsScheduledByDCI = NULLP;
+   DU_ALLOC(pdschCfg->maxNrofCodeWordsScheduledByDCI, sizeof(long));
+   if(!pdschCfg->maxNrofCodeWordsScheduledByDCI)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPUlDedPuschCfg");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPDlDedPdschCfg");
       return RFAILED;
    }
-   *(puschCfg->transformPrecoder) = PUSCH_TRANSFORM_PRECODER;
+   *(pdschCfg->maxNrofCodeWordsScheduledByDCI) = PDSCH_MAX_CODEWORD_SCH_BY_DCI;
 
-   puschCfg->codebookSubset = NULLP;
-   puschCfg->maxRank = NULLP;
-   puschCfg->rbg_Size = NULLP;
-   puschCfg->uci_OnPUSCH = NULLP;
-   puschCfg->tp_pi2BPSK = NULLP;
+   if(BuildPdschPrbBundlingType(&pdschCfg->prb_BundlingType) != ROK)
+   {
+      return RFAILED;
+   }
+
+   pdschCfg->zp_CSI_RS_ResourceToAddModList = NULLP;
+   pdschCfg->zp_CSI_RS_ResourceToReleaseList = NULLP;
+   pdschCfg->aperiodic_ZP_CSI_RS_ResourceSetsToAddModList = NULLP;
+   pdschCfg->aperiodic_ZP_CSI_RS_ResourceSetsToReleaseList = NULLP;
+   pdschCfg->sp_ZP_CSI_RS_ResourceSetsToAddModList = NULLP;
+   pdschCfg->sp_ZP_CSI_RS_ResourceSetsToReleaseList = NULLP;
+   pdschCfg->p_ZP_CSI_RS_ResourceSet = NULLP;
 
    return ROK;
 }
 
 /*******************************************************************
  *
- * @brief Fills SRS resource to add/modify list 
- *
+ * @brief Builds intitial DL BWP
  * @details
  *
- *    Function : BuildSrsRsrcAddModList
+ *    Function : BuildInitialDlBWP 
  *
- *    Functionality: Fills SRS resource to add/modify list
+ *    Functionality: Builds intitial DL BWP in spCellCfgDed
+ *
+ * @params[in] BWP_DownlinkDedicated_t *dlBwp
  *
- * @params[in] 
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint8_t BuildSrsRsrcAddModList(struct SRS_Config__srs_ResourceToAddModList *resourceList)
+uint8_t BuildInitialDlBWP(BWP_DownlinkDedicated_t *dlBwp)
 {
-   uint8_t   elementCnt;
-   uint8_t   rsrcIdx;
-
-   elementCnt = 1;
-   resourceList->list.count = elementCnt;
-   resourceList->list.size = elementCnt * sizeof(SRS_Resource_t *);
-   resourceList->list.array = NULLP;
-   DU_ALLOC(resourceList->list.array, resourceList->list.size);
-   if(!resourceList->list.array)
+   dlBwp->pdcch_Config = NULLP;
+   DU_ALLOC(dlBwp->pdcch_Config, sizeof(struct BWP_DownlinkDedicated__pdcch_Config));
+   if(!dlBwp->pdcch_Config)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSrsRsrcAddModList");
+      DU_LOG("\nERROR  -->  F1AP : Memory Allocation failure in BuildInitialDlBWP");
       return RFAILED;
    }
+   dlBwp->pdcch_Config->present = BWP_DownlinkDedicated__pdcch_Config_PR_setup; 
 
-   for(rsrcIdx = 0; rsrcIdx < resourceList->list.count; rsrcIdx++)
+   dlBwp->pdcch_Config->choice.setup = NULLP;
+   DU_ALLOC(dlBwp->pdcch_Config->choice.setup, sizeof(struct PDCCH_Config));
+   if(!dlBwp->pdcch_Config->choice.setup)
    {
-      DU_ALLOC(resourceList->list.array[rsrcIdx], sizeof(SRS_Resource_t));
-      if(!resourceList->list.array[rsrcIdx])
-      {
-        DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSrsRsrcAddModList");
-        return RFAILED;
-      }
+      DU_LOG("\nERROR  -->  F1AP : Memory Allocation failure in BuildInitialDlBWP");
+      return RFAILED;
    }
-
-   rsrcIdx = 0;
-   resourceList->list.array[rsrcIdx]->srs_ResourceId = SRS_RSRC_ID;
-   resourceList->list.array[rsrcIdx]->nrofSRS_Ports = SRS_Resource__nrofSRS_Ports_port1;
-   resourceList->list.array[rsrcIdx]->transmissionComb.present = SRS_Resource__transmissionComb_PR_n2;
-
-   resourceList->list.array[rsrcIdx]->transmissionComb.choice.n2 = NULLP;
-   DU_ALLOC(resourceList->list.array[rsrcIdx]->transmissionComb.choice.n2, \
-        sizeof(struct SRS_Resource__transmissionComb__n2));
-   if(!resourceList->list.array[rsrcIdx]->transmissionComb.choice.n2)
+   if(BuildBWPDlDedPdcchCfg(dlBwp->pdcch_Config->choice.setup) != ROK)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSrsRsrcAddModList");
       return RFAILED;
    }
-   resourceList->list.array[rsrcIdx]->transmissionComb.choice.n2->combOffset_n2\
-      = SRS_COMB_OFFSET_N2;
-   resourceList->list.array[rsrcIdx]->transmissionComb.choice.n2->cyclicShift_n2\
-      = SRS_CYCLIC_SHIFT_N2;
 
-   resourceList->list.array[rsrcIdx]->resourceMapping.startPosition = \
-                                                                     PUSCH_START_SYMBOL;
-   resourceList->list.array[rsrcIdx]->resourceMapping.nrofSymbols =  \
-                                                                    SRS_Resource__resourceMapping__nrofSymbols_n1;
-   resourceList->list.array[rsrcIdx]->resourceMapping.repetitionFactor = \
-                                                                        SRS_Resource__resourceMapping__repetitionFactor_n1;
+   dlBwp->pdsch_Config = NULLP;
+   DU_ALLOC(dlBwp->pdsch_Config, sizeof(struct BWP_DownlinkDedicated__pdsch_Config));
+   if(!dlBwp->pdsch_Config)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory Allocation failure in BuildInitialDlBWP");
+      return RFAILED;
+   }
+   dlBwp->pdsch_Config->present = BWP_DownlinkDedicated__pdsch_Config_PR_setup;
 
-   resourceList->list.array[rsrcIdx]->freqDomainPosition = SRS_FREQ_DOM_POS;
-   resourceList->list.array[rsrcIdx]->freqDomainShift = SRS_FREQ_DOM_SHIFT;
-   resourceList->list.array[rsrcIdx]->freqHopping.c_SRS = C_SRS;
-   resourceList->list.array[rsrcIdx]->freqHopping.b_SRS = B_SRS;
-   resourceList->list.array[rsrcIdx]->freqHopping.b_hop = B_HOP;
-   resourceList->list.array[rsrcIdx]->groupOrSequenceHopping = \
-                                                              SRS_Resource__groupOrSequenceHopping_neither;
+   dlBwp->pdsch_Config->choice.setup = NULLP;
+   DU_ALLOC(dlBwp->pdsch_Config->choice.setup, sizeof(struct PDSCH_Config));
+   if(!dlBwp->pdsch_Config->choice.setup)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory Allocation failure in BuildInitialDlBWP");
+      return RFAILED;
+   }
 
-   /* Setting resource type to aperiodic for intergration purposes */
-   resourceList->list.array[rsrcIdx]->resourceType.present = \
-                                                            SRS_Resource__resourceType_PR_aperiodic;
-   resourceList->list.array[rsrcIdx]->resourceType.choice.aperiodic = NULLP;
-   DU_ALLOC(resourceList->list.array[rsrcIdx]->resourceType.choice.aperiodic,
-        sizeof(struct SRS_Resource__resourceType__aperiodic));
-   if(!resourceList->list.array[rsrcIdx]->resourceType.choice.aperiodic)
+   if(BuildBWPDlDedPdschCfg(dlBwp->pdsch_Config->choice.setup) != ROK)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSrsRsrcAddModList");
       return RFAILED;
    }
-   resourceList->list.array[rsrcIdx]->sequenceId = SRS_SEQ_ID;
 
+   dlBwp->sps_Config = NULLP;
+   dlBwp->radioLinkMonitoringConfig = NULLP; 
    return ROK;
 }
 
 /*******************************************************************
  *
- * @brief Build SRS resource set Add/mod list
+ * @brief Builds DMRS UL Pusch Mapping type A
  *
  * @details
  *
- *    Function : BuildSrsRsrcSetAddModList
+ *    Function : BuildDMRSULPuschMapTypeA
  *
- *    Functionality: Build SRS resource set Add/mod list
+ *    Functionality: Builds DMRS UL Pusch Mapping type A
  *
  * @params[in] 
+ *    struct PUSCH_Config__dmrs_UplinkForPUSCH_MappingTypeA *dmrsUlCfg
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-   uint8_t BuildSrsRsrcSetAddModList
+   uint8_t BuildDMRSULPuschMapTypeA
 (
- struct SRS_Config__srs_ResourceSetToAddModList *rsrcSetList
+ struct PUSCH_Config__dmrs_UplinkForPUSCH_MappingTypeA *dmrsUlCfg
  )
 {
-   uint8_t  elementCnt;
-   uint8_t  rSetIdx;
-   uint8_t  rsrcIdx;
-   struct SRS_ResourceSet__srs_ResourceIdList *rsrcIdList;
-
-   elementCnt = 1;
-   rsrcSetList->list.count = elementCnt;
-   rsrcSetList->list.size = elementCnt * sizeof(SRS_ResourceSet_t *);
-   rsrcSetList->list.array = NULLP;
-   DU_ALLOC(rsrcSetList->list.array, rsrcSetList->list.size);
-   if(!rsrcSetList->list.array)
+   dmrsUlCfg->present = PUSCH_Config__dmrs_UplinkForPUSCH_MappingTypeA_PR_setup;
+   dmrsUlCfg->choice.setup= NULLP;
+   DU_ALLOC(dmrsUlCfg->choice.setup, sizeof(DMRS_UplinkConfig_t));
+   if(!dmrsUlCfg->choice.setup)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSrsRsrcSetAddModList");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildDMRSULPuschMapTypeA");
       return RFAILED;
    }
 
-   for(rSetIdx = 0; rSetIdx < rsrcSetList->list.count; rSetIdx++)
+   dmrsUlCfg->choice.setup->dmrs_Type = NULLP;
+   dmrsUlCfg->choice.setup->dmrs_AdditionalPosition = NULLP;
+   DU_ALLOC(dmrsUlCfg->choice.setup->dmrs_AdditionalPosition, sizeof(long));
+   if(!dmrsUlCfg->choice.setup->dmrs_AdditionalPosition)
    {
-      DU_ALLOC(rsrcSetList->list.array[rSetIdx], sizeof(SRS_ResourceSet_t));
-      if(!rsrcSetList->list.array[rSetIdx])
-      {
-        DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSrsRsrcSetAddModList");
-        return RFAILED;
-      }
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildDMRSULPuschMapTypeA");
+      return RFAILED;
    }
+   *(dmrsUlCfg->choice.setup->dmrs_AdditionalPosition) = DMRS_ADDITIONAL_POS; 
 
-   rSetIdx = 0;
-   rsrcSetList->list.array[rSetIdx]->srs_ResourceSetId = SRS_RSET_ID;
-
-   /* Fill Resource Id list in resource set */
-   rsrcSetList->list.array[rSetIdx]->srs_ResourceIdList = NULLP;
-   DU_ALLOC(rsrcSetList->list.array[rSetIdx]->srs_ResourceIdList,\
-        sizeof(struct SRS_ResourceSet__srs_ResourceIdList));
-   if(!rsrcSetList->list.array[rSetIdx]->srs_ResourceIdList)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSrsRsrcSetAddModList");
-      return RFAILED;
-   }
-
-   elementCnt = 1;
-   rsrcIdList = rsrcSetList->list.array[rSetIdx]->srs_ResourceIdList;
-   rsrcIdList->list.count = elementCnt;
-   rsrcIdList->list.size = elementCnt * sizeof(SRS_ResourceId_t *);
-   rsrcIdList->list.array = NULLP;
-   DU_ALLOC(rsrcIdList->list.array, rsrcIdList->list.size);
-   if(!rsrcIdList->list.array)
+   dmrsUlCfg->choice.setup->phaseTrackingRS = NULLP;
+   dmrsUlCfg->choice.setup->maxLength = NULLP;
+   dmrsUlCfg->choice.setup->transformPrecodingDisabled = NULLP;
+   DU_ALLOC(dmrsUlCfg->choice.setup->transformPrecodingDisabled, \
+        sizeof(struct DMRS_UplinkConfig__transformPrecodingDisabled));
+   if(!dmrsUlCfg->choice.setup->transformPrecodingDisabled)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSrsRsrcSetAddModList");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildDMRSULPuschMapTypeA");
       return RFAILED;
    }
 
-   for(rsrcIdx = 0; rsrcIdx < rsrcIdList->list.count; rsrcIdx++)
-   {
-      DU_ALLOC(rsrcIdList->list.array[rsrcIdx], sizeof(SRS_ResourceId_t));
-      if(!rsrcIdList->list.array[rsrcIdx])
-      {
-        DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSrsRsrcSetAddModList");
-        return RFAILED;
-      }
-   }
-
-   rsrcIdx = 0;
-   *rsrcIdList->list.array[rsrcIdx] = SRS_RSRC_ID;
-
-   /* Fill resource type */
-   rsrcSetList->list.array[rSetIdx]->resourceType.present = \
-                                                           SRS_ResourceSet__resourceType_PR_aperiodic;
-
-   rsrcSetList->list.array[rSetIdx]->resourceType.choice.aperiodic = NULLP;
-   DU_ALLOC(rsrcSetList->list.array[rSetIdx]->resourceType.choice.aperiodic, \
-        sizeof(struct SRS_ResourceSet__resourceType__aperiodic));
-   if(!rsrcSetList->list.array[rSetIdx]->resourceType.choice.aperiodic)
+   dmrsUlCfg->choice.setup->transformPrecodingDisabled->scramblingID0 = NULLP;
+   DU_ALLOC(dmrsUlCfg->choice.setup->transformPrecodingDisabled->scramblingID0,\
+        sizeof(long));
+   if(!dmrsUlCfg->choice.setup->transformPrecodingDisabled->scramblingID0)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSrsRsrcSetAddModList");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildDMRSULPuschMapTypeA");
       return RFAILED;
    }
-   rsrcSetList->list.array[rSetIdx]->resourceType.choice.aperiodic->aperiodicSRS_ResourceTrigger \
-      = APERIODIC_SRS_RESRC_TRIGGER;
-
-   /* TODO : Fill values for below IEs as expected by Viavi */
-   rsrcSetList->list.array[rSetIdx]->resourceType.choice.aperiodic->csi_RS = NULLP;
-   rsrcSetList->list.array[rSetIdx]->resourceType.choice.aperiodic->slotOffset = NULLP;
-
-
-   rsrcSetList->list.array[rSetIdx]->usage = SRS_ResourceSet__usage_codebook;
-   rsrcSetList->list.array[rSetIdx]->alpha = NULLP;
-   rsrcSetList->list.array[rSetIdx]->p0 = NULLP;
-   rsrcSetList->list.array[rSetIdx]->pathlossReferenceRS = NULLP;
-   rsrcSetList->list.array[rSetIdx]->srs_PowerControlAdjustmentStates = NULLP;
+   *(dmrsUlCfg->choice.setup->transformPrecodingDisabled->scramblingID0) = SCRAMBLING_ID;
 
+   dmrsUlCfg->choice.setup->transformPrecodingDisabled->scramblingID1 = NULLP;
+   dmrsUlCfg->choice.setup->transformPrecodingEnabled = NULLP;
    return ROK;
 }
 
 /*******************************************************************
  *
- * @brief Builds BWP UL dedicated SRS Config
+ * @brief Build PUSCH time domain allocation list
  *
  * @details
  *
- *    Function : BuildBWPUlDedSrsCfg
+ *    Function : BuildPuschTimeDomAllocList
  *
- *    Functionality: Builds BWP UL dedicated SRS Config
+ *    Functionality: Build PUSCH time domain allocation list
+ *
+ * @params[in] 
+ * struct PUSCH_Config__pusch_TimeDomainAllocationList *timeDomAllocList
  *
- * @params[in] SRS Config 
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint8_t BuildBWPUlDedSrsCfg(SRS_Config_t *srsCfg)
+   uint8_t BuildPuschTimeDomAllocList
+(
+ struct PUSCH_Config__pusch_TimeDomainAllocationList *timeDomAllocList
+ )
 {
-   srsCfg->srs_ResourceSetToReleaseList = NULLP;
-   srsCfg->srs_ResourceSetToAddModList = NULLP;
-   DU_ALLOC(srsCfg->srs_ResourceSetToAddModList, \
-        sizeof(struct SRS_Config__srs_ResourceSetToAddModList));
-   if(!srsCfg->srs_ResourceSetToAddModList)
+   uint8_t idx;
+   uint8_t elementCnt;
+   PUSCH_TimeDomainResourceAllocation_t  *timeDomAlloc;
+
+   timeDomAllocList->present = PUSCH_Config__pusch_TimeDomainAllocationList_PR_setup;
+   timeDomAllocList->choice.setup = NULLP;
+   DU_ALLOC(timeDomAllocList->choice.setup, \
+        sizeof(struct PUSCH_TimeDomainResourceAllocationList));
+   if(!timeDomAllocList->choice.setup)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPUlDedSrsCfg");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPuschTimeDomAllocList");
       return RFAILED;
    }
-   if(BuildSrsRsrcSetAddModList(srsCfg->srs_ResourceSetToAddModList) != ROK)
+
+   elementCnt = 1;
+   timeDomAllocList->choice.setup->list.count = elementCnt;
+   timeDomAllocList->choice.setup->list.size = \
+                                              elementCnt * sizeof(PUSCH_TimeDomainResourceAllocation_t *);
+   timeDomAllocList->choice.setup->list.array = NULLP;
+   DU_ALLOC(timeDomAllocList->choice.setup->list.array, \
+        timeDomAllocList->choice.setup->list.size);
+   if(!timeDomAllocList->choice.setup->list.array)
    {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPuschTimeDomAllocList");
       return RFAILED;
    }
 
-   srsCfg->srs_ResourceToReleaseList = NULLP;
-
-   /* Resource to Add/Modify list */
-   srsCfg->srs_ResourceToAddModList = NULLP;
-   DU_ALLOC(srsCfg->srs_ResourceToAddModList, \
-        sizeof(struct SRS_Config__srs_ResourceToAddModList));
-   if(!srsCfg->srs_ResourceToAddModList)
+   for(idx = 0; idx < elementCnt; idx++)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPUlDedSrsCfg");
-      return RFAILED;
+      timeDomAllocList->choice.setup->list.array[idx] = NULLP;
+      DU_ALLOC(timeDomAllocList->choice.setup->list.array[idx],\
+           sizeof(PUSCH_TimeDomainResourceAllocation_t));
+      if(!timeDomAllocList->choice.setup->list.array[idx])
+      {
+        DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPuschTimeDomAllocList");
+        return RFAILED;
+      }
    }
 
-   if(BuildSrsRsrcAddModList(srsCfg->srs_ResourceToAddModList) != ROK)
+   idx = 0;
+   timeDomAlloc = timeDomAllocList->choice.setup->list.array[idx];
+   DU_ALLOC(timeDomAlloc->k2, sizeof(long));
+   if(!timeDomAlloc->k2)
    {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPuschTimeDomAllocList");
       return RFAILED;
    }
-
-   srsCfg->tpc_Accumulation = NULLP;
-
+   *(timeDomAlloc->k2) = PUSCH_K2;
+   timeDomAlloc->mappingType = PUSCH_MAPPING_TYPE_A;
+   timeDomAlloc->startSymbolAndLength = calcSliv(PUSCH_START_SYMBOL, PUSCH_LENGTH_SYMBOL);
    return ROK;
 }
 
-
-
 /*******************************************************************
  *
- * @brief Builds Pusch Serving cell Config
+ * @brief Builds BWP UL dedicated PUSCH Config
  *
  * @details
  *
- *    Function : BuildPuschSrvCellCfg
- *
- *    Functionality: Builds Pusch Serving cell Config
+ *    Function : BuildBWPUlDedPuschCfg
  *
- * @params[in] struct UplinkConfig__pusch_ServingCellConfig *puschCfg
+ *    Functionality:
+ *      Builds BWP UL dedicated PUSCH Config
  *
+ * @params[in] : PUSCH_Config_t *puschCfg
+ *    
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint8_t BuildPuschSrvCellCfg(struct UplinkConfig__pusch_ServingCellConfig *puschCfg)
+uint8_t BuildBWPUlDedPuschCfg(PUSCH_Config_t *puschCfg)
 {
-   puschCfg->present = UplinkConfig__pusch_ServingCellConfig_PR_setup;
-   puschCfg->choice.setup = NULLP;
-   DU_ALLOC(puschCfg->choice.setup, sizeof(struct PUSCH_ServingCellConfig));
-   if(!puschCfg->choice.setup)
+   puschCfg->dataScramblingIdentityPUSCH = NULLP;
+   DU_ALLOC(puschCfg->dataScramblingIdentityPUSCH, sizeof(long));
+   if(!puschCfg->dataScramblingIdentityPUSCH)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPuschSrvCellCfg");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPUlDedPuschCfg");
       return RFAILED;
    }
+   *(puschCfg->dataScramblingIdentityPUSCH) = SCRAMBLING_ID;
 
-   puschCfg->choice.setup->codeBlockGroupTransmission = NULLP;
-   puschCfg->choice.setup->rateMatching = NULLP;
-   puschCfg->choice.setup->xOverhead = NULLP;
-   puschCfg->choice.setup->ext1 = NULLP;
-   DU_ALLOC(puschCfg->choice.setup->ext1, sizeof(struct PUSCH_ServingCellConfig__ext1));
-   if(!puschCfg->choice.setup->ext1)
+   puschCfg->txConfig = NULLP;
+   puschCfg->dmrs_UplinkForPUSCH_MappingTypeA = NULLP;
+   DU_ALLOC(puschCfg->dmrs_UplinkForPUSCH_MappingTypeA, \
+        sizeof(struct PUSCH_Config__dmrs_UplinkForPUSCH_MappingTypeA));
+   if(!puschCfg->dmrs_UplinkForPUSCH_MappingTypeA)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPuschSrvCellCfg");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPUlDedPuschCfg");
       return RFAILED;
    }
 
-   puschCfg->choice.setup->ext1->maxMIMO_Layers = NULLP;
-   DU_ALLOC(puschCfg->choice.setup->ext1->maxMIMO_Layers, sizeof(long));
-   if(!puschCfg->choice.setup->ext1->maxMIMO_Layers)
+   if(BuildDMRSULPuschMapTypeA(puschCfg->dmrs_UplinkForPUSCH_MappingTypeA) != ROK)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPuschSrvCellCfg");
       return RFAILED;
    }
-   *(puschCfg->choice.setup->ext1->maxMIMO_Layers) = PUSCH_MAX_MIMO_LAYERS;
 
-   puschCfg->choice.setup->ext1->processingType2Enabled= NULLP;
-   DU_ALLOC(puschCfg->choice.setup->ext1->processingType2Enabled,sizeof(BOOLEAN_t));
-   if(!puschCfg->choice.setup->ext1->processingType2Enabled)
+   puschCfg->dmrs_UplinkForPUSCH_MappingTypeB = NULLP;
+   puschCfg->pusch_PowerControl = NULLP;
+   puschCfg->frequencyHopping = NULLP;
+   puschCfg->frequencyHoppingOffsetLists = NULLP;
+   puschCfg->resourceAllocation = RES_ALLOC_TYPE;
+
+   puschCfg->pusch_TimeDomainAllocationList = NULLP;
+   DU_ALLOC(puschCfg->pusch_TimeDomainAllocationList, \
+        sizeof(struct PUSCH_Config__pusch_TimeDomainAllocationList));
+   if(!puschCfg->pusch_TimeDomainAllocationList)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPuschSrvCellCfg");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPUlDedPuschCfg");
       return RFAILED;
    }
-   *(puschCfg->choice.setup->ext1->processingType2Enabled) = PUSCH_PROCESS_TYPE2_ENABLED;
+
+   if(BuildPuschTimeDomAllocList(puschCfg->pusch_TimeDomainAllocationList) != ROK)
+   {
+      return RFAILED;
+   }
+
+   puschCfg->pusch_AggregationFactor = NULLP;
+   puschCfg->mcs_Table = NULLP;
+   puschCfg->mcs_TableTransformPrecoder = NULLP;
+   puschCfg->transformPrecoder = NULLP;
+   DU_ALLOC(puschCfg->transformPrecoder, sizeof(long));
+   if(!puschCfg->transformPrecoder)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPUlDedPuschCfg");
+      return RFAILED;
+   }
+   *(puschCfg->transformPrecoder) = PUSCH_TRANSFORM_PRECODER;
+
+   puschCfg->codebookSubset = NULLP;
+   puschCfg->maxRank = NULLP;
+   puschCfg->rbg_Size = NULLP;
+   puschCfg->uci_OnPUSCH = NULLP;
+   puschCfg->tp_pi2BPSK = NULLP;
+
    return ROK;
 }
 
 /*******************************************************************
  *
- * @brief Builds inital UL BWP
+ * @brief Fills SRS resource to add/modify list 
  *
  * @details
  *
- *    Function : BuildInitialUlBWP
+ *    Function : BuildSrsRsrcAddModList
  *
- *    Functionality: Builds initial UL BWP
+ *    Functionality: Fills SRS resource to add/modify list
  *
- * @params[in] BWP_UplinkDedicated_t *ulBwp
+ * @params[in] 
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint8_t BuildInitialUlBWP(BWP_UplinkDedicated_t *ulBwp)
+uint8_t BuildSrsRsrcAddModList(struct SRS_Config__srs_ResourceToAddModList *resourceList)
 {
-   ulBwp->pucch_Config = NULLP;
-
-   /* Fill BWP UL dedicated PUSCH config */
-   ulBwp->pusch_Config = NULLP;
-   DU_ALLOC(ulBwp->pusch_Config, sizeof(struct BWP_UplinkDedicated__pusch_Config));
-   if(!ulBwp->pusch_Config)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildInitialUlBWP");
-      return RFAILED;
-   }
+   uint8_t   elementCnt;
+   uint8_t   rsrcIdx;
 
-   ulBwp->pusch_Config->present = BWP_UplinkDedicated__pusch_Config_PR_setup;
-   ulBwp->pusch_Config->choice.setup = NULLP;
-   DU_ALLOC(ulBwp->pusch_Config->choice.setup, sizeof(PUSCH_Config_t));
-   if(!ulBwp->pusch_Config->choice.setup)
+   elementCnt = 1;
+   resourceList->list.count = elementCnt;
+   resourceList->list.size = elementCnt * sizeof(SRS_Resource_t *);
+   resourceList->list.array = NULLP;
+   DU_ALLOC(resourceList->list.array, resourceList->list.size);
+   if(!resourceList->list.array)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildInitialUlBWP");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSrsRsrcAddModList");
       return RFAILED;
    }
 
-   if(BuildBWPUlDedPuschCfg(ulBwp->pusch_Config->choice.setup) != ROK)
+   for(rsrcIdx = 0; rsrcIdx < resourceList->list.count; rsrcIdx++)
    {
-      return RFAILED;
+      DU_ALLOC(resourceList->list.array[rsrcIdx], sizeof(SRS_Resource_t));
+      if(!resourceList->list.array[rsrcIdx])
+      {
+        DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSrsRsrcAddModList");
+        return RFAILED;
+      }
    }
 
-   ulBwp->configuredGrantConfig = NULLP;
+   rsrcIdx = 0;
+   resourceList->list.array[rsrcIdx]->srs_ResourceId = SRS_RSRC_ID;
+   resourceList->list.array[rsrcIdx]->nrofSRS_Ports = SRS_Resource__nrofSRS_Ports_port1;
+   resourceList->list.array[rsrcIdx]->transmissionComb.present = SRS_Resource__transmissionComb_PR_n2;
 
-   /* Fill BPW UL dedicated SRS config */
-   ulBwp->srs_Config = NULLP;
-   DU_ALLOC(ulBwp->srs_Config, sizeof(struct BWP_UplinkDedicated__srs_Config));
-   if(!ulBwp->srs_Config)
+   resourceList->list.array[rsrcIdx]->transmissionComb.choice.n2 = NULLP;
+   DU_ALLOC(resourceList->list.array[rsrcIdx]->transmissionComb.choice.n2, \
+        sizeof(struct SRS_Resource__transmissionComb__n2));
+   if(!resourceList->list.array[rsrcIdx]->transmissionComb.choice.n2)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildInitialUlBWP");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSrsRsrcAddModList");
       return RFAILED;
    }
+   resourceList->list.array[rsrcIdx]->transmissionComb.choice.n2->combOffset_n2\
+      = SRS_COMB_OFFSET_N2;
+   resourceList->list.array[rsrcIdx]->transmissionComb.choice.n2->cyclicShift_n2\
+      = SRS_CYCLIC_SHIFT_N2;
 
-   ulBwp->srs_Config->present = BWP_UplinkDedicated__srs_Config_PR_setup;
-   ulBwp->srs_Config->choice.setup = NULLP;
-   DU_ALLOC(ulBwp->srs_Config->choice.setup, sizeof(SRS_Config_t));
-   if(!ulBwp->srs_Config->choice.setup)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildInitialUlBWP");
-      return RFAILED;
-   }
+   resourceList->list.array[rsrcIdx]->resourceMapping.startPosition = \
+                                                                     PUSCH_START_SYMBOL;
+   resourceList->list.array[rsrcIdx]->resourceMapping.nrofSymbols =  \
+                                                                    SRS_Resource__resourceMapping__nrofSymbols_n1;
+   resourceList->list.array[rsrcIdx]->resourceMapping.repetitionFactor = \
+                                                                        SRS_Resource__resourceMapping__repetitionFactor_n1;
 
-   if(BuildBWPUlDedSrsCfg(ulBwp->srs_Config->choice.setup) != ROK)
+   resourceList->list.array[rsrcIdx]->freqDomainPosition = SRS_FREQ_DOM_POS;
+   resourceList->list.array[rsrcIdx]->freqDomainShift = SRS_FREQ_DOM_SHIFT;
+   resourceList->list.array[rsrcIdx]->freqHopping.c_SRS = C_SRS;
+   resourceList->list.array[rsrcIdx]->freqHopping.b_SRS = B_SRS;
+   resourceList->list.array[rsrcIdx]->freqHopping.b_hop = B_HOP;
+   resourceList->list.array[rsrcIdx]->groupOrSequenceHopping = \
+                                                              SRS_Resource__groupOrSequenceHopping_neither;
+
+   /* Setting resource type to aperiodic for intergration purposes */
+   resourceList->list.array[rsrcIdx]->resourceType.present = \
+                                                            SRS_Resource__resourceType_PR_aperiodic;
+   resourceList->list.array[rsrcIdx]->resourceType.choice.aperiodic = NULLP;
+   DU_ALLOC(resourceList->list.array[rsrcIdx]->resourceType.choice.aperiodic,
+        sizeof(struct SRS_Resource__resourceType__aperiodic));
+   if(!resourceList->list.array[rsrcIdx]->resourceType.choice.aperiodic)
    {
-      return RFAILED;   
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSrsRsrcAddModList");
+      return RFAILED;
    }
-
-   ulBwp->beamFailureRecoveryConfig = NULLP;
+   resourceList->list.array[rsrcIdx]->sequenceId = SRS_SEQ_ID;
 
    return ROK;
 }
 
 /*******************************************************************
  *
- * @brief Builds UL config
- * @details
+ * @brief Build SRS resource set Add/mod list
  *
- *    Function : BuildUlCfg 
+ * @details
  *
- *    Functionality: Builds UL config in spCellCfgDed
+ *    Function : BuildSrsRsrcSetAddModList
  *
- * @params[in] UplinkConfig_t *ulCfg
+ *    Functionality: Build SRS resource set Add/mod list
  *
+ * @params[in] 
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint8_t BuildUlCfg(UplinkConfig_t *ulCfg)
+   uint8_t BuildSrsRsrcSetAddModList
+(
+ struct SRS_Config__srs_ResourceSetToAddModList *rsrcSetList
+ )
 {
-   ulCfg->initialUplinkBWP = NULLP;
-   DU_ALLOC(ulCfg->initialUplinkBWP, sizeof(BWP_UplinkDedicated_t));
-   if(!ulCfg->initialUplinkBWP)
+   uint8_t  elementCnt;
+   uint8_t  rSetIdx;
+   uint8_t  rsrcIdx;
+   struct SRS_ResourceSet__srs_ResourceIdList *rsrcIdList;
+
+   elementCnt = 1;
+   rsrcSetList->list.count = elementCnt;
+   rsrcSetList->list.size = elementCnt * sizeof(SRS_ResourceSet_t *);
+   rsrcSetList->list.array = NULLP;
+   DU_ALLOC(rsrcSetList->list.array, rsrcSetList->list.size);
+   if(!rsrcSetList->list.array)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory Allocation failed in BuildUlCfg");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSrsRsrcSetAddModList");
       return RFAILED;
    }
 
-   if(BuildInitialUlBWP(ulCfg->initialUplinkBWP) != ROK)
+   for(rSetIdx = 0; rSetIdx < rsrcSetList->list.count; rSetIdx++)
    {
-      return RFAILED;
+      DU_ALLOC(rsrcSetList->list.array[rSetIdx], sizeof(SRS_ResourceSet_t));
+      if(!rsrcSetList->list.array[rSetIdx])
+      {
+        DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSrsRsrcSetAddModList");
+        return RFAILED;
+      }
    }
 
-   ulCfg->uplinkBWP_ToReleaseList = NULLP;
-   ulCfg->uplinkBWP_ToAddModList = NULLP;
-   ulCfg->firstActiveUplinkBWP_Id = NULLP;
-   DU_ALLOC(ulCfg->firstActiveUplinkBWP_Id, sizeof(BWP_Id_t));
-   if(!ulCfg->firstActiveUplinkBWP_Id)
+   rSetIdx = 0;
+   rsrcSetList->list.array[rSetIdx]->srs_ResourceSetId = SRS_RSET_ID;
+
+   /* Fill Resource Id list in resource set */
+   rsrcSetList->list.array[rSetIdx]->srs_ResourceIdList = NULLP;
+   DU_ALLOC(rsrcSetList->list.array[rSetIdx]->srs_ResourceIdList,\
+        sizeof(struct SRS_ResourceSet__srs_ResourceIdList));
+   if(!rsrcSetList->list.array[rSetIdx]->srs_ResourceIdList)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory Allocation failed in BuildUlCfg");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSrsRsrcSetAddModList");
       return RFAILED;
    }
-   *(ulCfg->firstActiveUplinkBWP_Id) = ACTIVE_UL_BWP_ID;
 
-   ulCfg->pusch_ServingCellConfig = NULLP;
-   DU_ALLOC(ulCfg->pusch_ServingCellConfig, \
-        sizeof(struct UplinkConfig__pusch_ServingCellConfig));
-   if(!ulCfg->pusch_ServingCellConfig)
+   elementCnt = 1;
+   rsrcIdList = rsrcSetList->list.array[rSetIdx]->srs_ResourceIdList;
+   rsrcIdList->list.count = elementCnt;
+   rsrcIdList->list.size = elementCnt * sizeof(SRS_ResourceId_t *);
+   rsrcIdList->list.array = NULLP;
+   DU_ALLOC(rsrcIdList->list.array, rsrcIdList->list.size);
+   if(!rsrcIdList->list.array)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory Allocation failed in BuildUlCfg");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSrsRsrcSetAddModList");
       return RFAILED;
    }
 
-   if(BuildPuschSrvCellCfg(ulCfg->pusch_ServingCellConfig) != ROK)
+   for(rsrcIdx = 0; rsrcIdx < rsrcIdList->list.count; rsrcIdx++)
+   {
+      DU_ALLOC(rsrcIdList->list.array[rsrcIdx], sizeof(SRS_ResourceId_t));
+      if(!rsrcIdList->list.array[rsrcIdx])
+      {
+        DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSrsRsrcSetAddModList");
+        return RFAILED;
+      }
+   }
+
+   rsrcIdx = 0;
+   *rsrcIdList->list.array[rsrcIdx] = SRS_RSRC_ID;
+
+   /* Fill resource type */
+   rsrcSetList->list.array[rSetIdx]->resourceType.present = \
+                                                           SRS_ResourceSet__resourceType_PR_aperiodic;
+
+   rsrcSetList->list.array[rSetIdx]->resourceType.choice.aperiodic = NULLP;
+   DU_ALLOC(rsrcSetList->list.array[rSetIdx]->resourceType.choice.aperiodic, \
+        sizeof(struct SRS_ResourceSet__resourceType__aperiodic));
+   if(!rsrcSetList->list.array[rSetIdx]->resourceType.choice.aperiodic)
    {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildSrsRsrcSetAddModList");
       return RFAILED;
    }
+   rsrcSetList->list.array[rSetIdx]->resourceType.choice.aperiodic->aperiodicSRS_ResourceTrigger \
+      = APERIODIC_SRS_RESRC_TRIGGER;
+
+   /* TODO : Fill values for below IEs as expected by Viavi */
+   rsrcSetList->list.array[rSetIdx]->resourceType.choice.aperiodic->csi_RS = NULLP;
+   rsrcSetList->list.array[rSetIdx]->resourceType.choice.aperiodic->slotOffset = NULLP;
+
+
+   rsrcSetList->list.array[rSetIdx]->usage = SRS_ResourceSet__usage_codebook;
+   rsrcSetList->list.array[rSetIdx]->alpha = NULLP;
+   rsrcSetList->list.array[rSetIdx]->p0 = NULLP;
+   rsrcSetList->list.array[rSetIdx]->pathlossReferenceRS = NULLP;
+   rsrcSetList->list.array[rSetIdx]->srs_PowerControlAdjustmentStates = NULLP;
 
-   ulCfg->carrierSwitching = NULLP;
-   ulCfg->ext1 = NULLP;
    return ROK;
 }
 
 /*******************************************************************
  *
- * @brief Builds PDSCH serving cell config
- * @details
+ * @brief Builds BWP UL dedicated SRS Config
  *
- *    Function : BuildPdschSrvCellCfg
+ * @details
  *
- *    Functionality: Builds PDSCH serving cell config in spCellCfgDed
+ *    Function : BuildBWPUlDedSrsCfg
  *
- * @params[in] struct ServingCellConfig__pdsch_ServingCellConfig *pdschCfg 
+ *    Functionality: Builds BWP UL dedicated SRS Config
  *
+ * @params[in] SRS Config 
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint8_t BuildPdschSrvCellCfg(struct ServingCellConfig__pdsch_ServingCellConfig *pdschCfg)
+uint8_t BuildBWPUlDedSrsCfg(SRS_Config_t *srsCfg)
 {
-   pdschCfg->present =  ServingCellConfig__pdsch_ServingCellConfig_PR_setup;
-   pdschCfg->choice.setup = NULLP;
-   DU_ALLOC(pdschCfg->choice.setup, sizeof( struct PDSCH_ServingCellConfig));
-   if(!pdschCfg->choice.setup)
+   srsCfg->srs_ResourceSetToReleaseList = NULLP;
+   srsCfg->srs_ResourceSetToAddModList = NULLP;
+   DU_ALLOC(srsCfg->srs_ResourceSetToAddModList, \
+        sizeof(struct SRS_Config__srs_ResourceSetToAddModList));
+   if(!srsCfg->srs_ResourceSetToAddModList)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPUlDedSrsCfg");
+      return RFAILED;
+   }
+   if(BuildSrsRsrcSetAddModList(srsCfg->srs_ResourceSetToAddModList) != ROK)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPdschSrvCellCfg");
       return RFAILED;
    }
 
-   pdschCfg->choice.setup->codeBlockGroupTransmission = NULLP;
-   pdschCfg->choice.setup->xOverhead = NULLP;
-   pdschCfg->choice.setup->nrofHARQ_ProcessesForPDSCH = NULLP;
-   DU_ALLOC(pdschCfg->choice.setup->nrofHARQ_ProcessesForPDSCH, sizeof(long));
-   if(!pdschCfg->choice.setup->nrofHARQ_ProcessesForPDSCH)
+   srsCfg->srs_ResourceToReleaseList = NULLP;
+
+   /* Resource to Add/Modify list */
+   srsCfg->srs_ResourceToAddModList = NULLP;
+   DU_ALLOC(srsCfg->srs_ResourceToAddModList, \
+        sizeof(struct SRS_Config__srs_ResourceToAddModList));
+   if(!srsCfg->srs_ResourceToAddModList)
    {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPdschSrvCellCfg");
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildBWPUlDedSrsCfg");
       return RFAILED;
    }
-   *(pdschCfg->choice.setup->nrofHARQ_ProcessesForPDSCH)= PDSCH_NUM_HARQ_PROC;
-   pdschCfg->choice.setup->pucch_Cell = NULLP;
-   pdschCfg->choice.setup->ext1 = NULLP;
 
-   return ROK;
-}
+   if(BuildSrsRsrcAddModList(srsCfg->srs_ResourceToAddModList) != ROK)
+   {
+      return RFAILED;
+   }
 
-/*******************************************************************
- *
- * @brief Builds CSI Meas config
- * @details
- *
- *    Function : BuildCsiMeasCfg 
- *
- *    Functionality: Builds CSI Meas config in spCellCfgDed
- *
- * @params[in] struct ServingCellConfig__csi_MeasConfig *csiMeasCfg
- *
- * @return ROK     - success
- *         RFAILED - failure
- *
- * ****************************************************************/
-uint8_t BuildCsiMeasCfg(struct ServingCellConfig__csi_MeasConfig *csiMeasCfg)
-{
+   srsCfg->tpc_Accumulation = NULLP;
 
    return ROK;
 }
 
+
+
 /*******************************************************************
  *
- * @brief Builds Spcell config dedicated
+ * @brief Builds Pusch Serving cell Config
+ *
  * @details
  *
- *    Function : BuildSpCellCfgDed
+ *    Function : BuildPuschSrvCellCfg
  *
- *    Functionality: Builds sp cell config dedicated in spCellCfg
+ *    Functionality: Builds Pusch Serving cell Config
  *
- * @params[in] ServingCellConfig_t srvCellCfg
+ * @params[in] struct UplinkConfig__pusch_ServingCellConfig *puschCfg
  *
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint8_t BuildSpCellCfgDed(ServingCellConfig_t *srvCellCfg)
+uint8_t BuildPuschSrvCellCfg(struct UplinkConfig__pusch_ServingCellConfig *puschCfg)
 {
-   srvCellCfg->tdd_UL_DL_ConfigurationDedicated = NULLP;
-   DU_ALLOC(srvCellCfg->tdd_UL_DL_ConfigurationDedicated, sizeof(TDD_UL_DL_ConfigDedicated_t));
-   if(!srvCellCfg->tdd_UL_DL_ConfigurationDedicated)
+   puschCfg->present = UplinkConfig__pusch_ServingCellConfig_PR_setup;
+   puschCfg->choice.setup = NULLP;
+   DU_ALLOC(puschCfg->choice.setup, sizeof(struct PUSCH_ServingCellConfig));
+   if(!puschCfg->choice.setup)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPuschSrvCellCfg");
+      return RFAILED;
+   }
+
+   puschCfg->choice.setup->codeBlockGroupTransmission = NULLP;
+   puschCfg->choice.setup->rateMatching = NULLP;
+   puschCfg->choice.setup->xOverhead = NULLP;
+   puschCfg->choice.setup->ext1 = NULLP;
+   DU_ALLOC(puschCfg->choice.setup->ext1, sizeof(struct PUSCH_ServingCellConfig__ext1));
+   if(!puschCfg->choice.setup->ext1)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPuschSrvCellCfg");
+      return RFAILED;
+   }
+
+   puschCfg->choice.setup->ext1->maxMIMO_Layers = NULLP;
+   DU_ALLOC(puschCfg->choice.setup->ext1->maxMIMO_Layers, sizeof(long));
+   if(!puschCfg->choice.setup->ext1->maxMIMO_Layers)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPuschSrvCellCfg");
+      return RFAILED;
+   }
+   *(puschCfg->choice.setup->ext1->maxMIMO_Layers) = PUSCH_MAX_MIMO_LAYERS;
+
+   puschCfg->choice.setup->ext1->processingType2Enabled= NULLP;
+   DU_ALLOC(puschCfg->choice.setup->ext1->processingType2Enabled,sizeof(BOOLEAN_t));
+   if(!puschCfg->choice.setup->ext1->processingType2Enabled)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPuschSrvCellCfg");
+      return RFAILED;
+   }
+   *(puschCfg->choice.setup->ext1->processingType2Enabled) = PUSCH_PROCESS_TYPE2_ENABLED;
+   return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Builds inital UL BWP
+ *
+ * @details
+ *
+ *    Function : BuildInitialUlBWP
+ *
+ *    Functionality: Builds initial UL BWP
+ *
+ * @params[in] BWP_UplinkDedicated_t *ulBwp
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t BuildInitialUlBWP(BWP_UplinkDedicated_t *ulBwp)
+{
+   ulBwp->pucch_Config = NULLP;
+
+   /* Fill BWP UL dedicated PUSCH config */
+   ulBwp->pusch_Config = NULLP;
+   DU_ALLOC(ulBwp->pusch_Config, sizeof(struct BWP_UplinkDedicated__pusch_Config));
+   if(!ulBwp->pusch_Config)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildInitialUlBWP");
+      return RFAILED;
+   }
+
+   ulBwp->pusch_Config->present = BWP_UplinkDedicated__pusch_Config_PR_setup;
+   ulBwp->pusch_Config->choice.setup = NULLP;
+   DU_ALLOC(ulBwp->pusch_Config->choice.setup, sizeof(PUSCH_Config_t));
+   if(!ulBwp->pusch_Config->choice.setup)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildInitialUlBWP");
+      return RFAILED;
+   }
+
+   if(BuildBWPUlDedPuschCfg(ulBwp->pusch_Config->choice.setup) != ROK)
+   {
+      return RFAILED;
+   }
+
+   ulBwp->configuredGrantConfig = NULLP;
+
+   /* Fill BPW UL dedicated SRS config */
+   ulBwp->srs_Config = NULLP;
+   DU_ALLOC(ulBwp->srs_Config, sizeof(struct BWP_UplinkDedicated__srs_Config));
+   if(!ulBwp->srs_Config)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildInitialUlBWP");
+      return RFAILED;
+   }
+
+   ulBwp->srs_Config->present = BWP_UplinkDedicated__srs_Config_PR_setup;
+   ulBwp->srs_Config->choice.setup = NULLP;
+   DU_ALLOC(ulBwp->srs_Config->choice.setup, sizeof(SRS_Config_t));
+   if(!ulBwp->srs_Config->choice.setup)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildInitialUlBWP");
+      return RFAILED;
+   }
+
+   if(BuildBWPUlDedSrsCfg(ulBwp->srs_Config->choice.setup) != ROK)
+   {
+      return RFAILED;   
+   }
+
+   ulBwp->beamFailureRecoveryConfig = NULLP;
+
+   return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Builds UL config
+ * @details
+ *
+ *    Function : BuildUlCfg 
+ *
+ *    Functionality: Builds UL config in spCellCfgDed
+ *
+ * @params[in] UplinkConfig_t *ulCfg
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t BuildUlCfg(UplinkConfig_t *ulCfg)
+{
+   ulCfg->initialUplinkBWP = NULLP;
+   DU_ALLOC(ulCfg->initialUplinkBWP, sizeof(BWP_UplinkDedicated_t));
+   if(!ulCfg->initialUplinkBWP)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory Allocation failed in BuildUlCfg");
+      return RFAILED;
+   }
+
+   if(BuildInitialUlBWP(ulCfg->initialUplinkBWP) != ROK)
+   {
+      return RFAILED;
+   }
+
+   ulCfg->uplinkBWP_ToReleaseList = NULLP;
+   ulCfg->uplinkBWP_ToAddModList = NULLP;
+   ulCfg->firstActiveUplinkBWP_Id = NULLP;
+   DU_ALLOC(ulCfg->firstActiveUplinkBWP_Id, sizeof(BWP_Id_t));
+   if(!ulCfg->firstActiveUplinkBWP_Id)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory Allocation failed in BuildUlCfg");
+      return RFAILED;
+   }
+   *(ulCfg->firstActiveUplinkBWP_Id) = ACTIVE_UL_BWP_ID;
+
+   ulCfg->pusch_ServingCellConfig = NULLP;
+   DU_ALLOC(ulCfg->pusch_ServingCellConfig, \
+        sizeof(struct UplinkConfig__pusch_ServingCellConfig));
+   if(!ulCfg->pusch_ServingCellConfig)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory Allocation failed in BuildUlCfg");
+      return RFAILED;
+   }
+
+   if(BuildPuschSrvCellCfg(ulCfg->pusch_ServingCellConfig) != ROK)
+   {
+      return RFAILED;
+   }
+
+   ulCfg->carrierSwitching = NULLP;
+   ulCfg->ext1 = NULLP;
+   return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Builds PDSCH serving cell config
+ * @details
+ *
+ *    Function : BuildPdschSrvCellCfg
+ *
+ *    Functionality: Builds PDSCH serving cell config in spCellCfgDed
+ *
+ * @params[in] struct ServingCellConfig__pdsch_ServingCellConfig *pdschCfg 
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t BuildPdschSrvCellCfg(struct ServingCellConfig__pdsch_ServingCellConfig *pdschCfg)
+{
+   pdschCfg->present =  ServingCellConfig__pdsch_ServingCellConfig_PR_setup;
+   pdschCfg->choice.setup = NULLP;
+   DU_ALLOC(pdschCfg->choice.setup, sizeof( struct PDSCH_ServingCellConfig));
+   if(!pdschCfg->choice.setup)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPdschSrvCellCfg");
+      return RFAILED;
+   }
+
+   pdschCfg->choice.setup->codeBlockGroupTransmission = NULLP;
+   pdschCfg->choice.setup->xOverhead = NULLP;
+   pdschCfg->choice.setup->nrofHARQ_ProcessesForPDSCH = NULLP;
+   DU_ALLOC(pdschCfg->choice.setup->nrofHARQ_ProcessesForPDSCH, sizeof(long));
+   if(!pdschCfg->choice.setup->nrofHARQ_ProcessesForPDSCH)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildPdschSrvCellCfg");
+      return RFAILED;
+   }
+   *(pdschCfg->choice.setup->nrofHARQ_ProcessesForPDSCH)= PDSCH_NUM_HARQ_PROC;
+   pdschCfg->choice.setup->pucch_Cell = NULLP;
+   pdschCfg->choice.setup->ext1 = NULLP;
+
+   return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Builds CSI Meas config
+ * @details
+ *
+ *    Function : BuildCsiMeasCfg 
+ *
+ *    Functionality: Builds CSI Meas config in spCellCfgDed
+ *
+ * @params[in] struct ServingCellConfig__csi_MeasConfig *csiMeasCfg
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t BuildCsiMeasCfg(struct ServingCellConfig__csi_MeasConfig *csiMeasCfg)
+{
+
+   return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Builds Spcell config dedicated
+ * @details
+ *
+ *    Function : BuildSpCellCfgDed
+ *
+ *    Functionality: Builds sp cell config dedicated in spCellCfg
+ *
+ * @params[in] ServingCellConfig_t srvCellCfg
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t BuildSpCellCfgDed(ServingCellConfig_t *srvCellCfg)
+{
+   srvCellCfg->tdd_UL_DL_ConfigurationDedicated = NULLP;
+   DU_ALLOC(srvCellCfg->tdd_UL_DL_ConfigurationDedicated, sizeof(TDD_UL_DL_ConfigDedicated_t));
+   if(!srvCellCfg->tdd_UL_DL_ConfigurationDedicated)
    {
       DU_LOG("\nERROR  -->  F1AP : Memory allocation failure in BuildSpCellCfgDed");
       return RFAILED;
@@ -5400,7 +6189,7 @@ uint8_t BuildAndSendInitialRrcMsgTransfer(uint32_t gnbDuUeF1apId, uint16_t crnti
         }
       }
       /* Sending  msg  */
-      if(SendF1APMsg(DU_APP_MEM_REGION,DU_POOL) != ROK)
+      if(sendF1APMsg() != ROK)
       {
         DU_LOG("\nERROR  -->  F1AP : Sending Initial UL RRC Message Transfer Failed");
         ret = RFAILED;
@@ -6267,6 +7056,11 @@ void freeDuUeCfg(DuUeCfg *ueCfg)
    {
       freeMacLcCfg(&ueCfg->macLcCfg[lcIdx]);
    }
+   for(lcIdx = 0; lcIdx < ueCfg->numDrb; lcIdx++)
+   {
+      DU_FREE(ueCfg->upTnlInfo[lcIdx].tnlCfg1, sizeof(GtpTnlCfg));
+      memset(&ueCfg->upTnlInfo[lcIdx], 0, sizeof(UpTnlCfg));
+   }
 }
 
 /*******************************************************************
@@ -6326,7 +7120,8 @@ void extractRlcAmCfg(AmBearerCfg *amCfgToSet, struct RLC_Config__am *rlcAmCfg)
       if(rlcAmCfg->dl_AM_RLC.sn_FieldLength)
       {
         amCfgToSet->ulAmCfg.snLenUl = *(rlcAmCfg->dl_AM_RLC.sn_FieldLength);
-        amCfgToSet->ulAmCfg.reAssemTmr = rlcAmCfg->dl_AM_RLC.t_Reassembly;
+         /*TODO: Check the timer value when sent by real CU */
+        amCfgToSet->ulAmCfg.reAssemTmr = rlcAmCfg->dl_AM_RLC.t_Reassembly; 
         amCfgToSet->ulAmCfg.statProhTmr = rlcAmCfg->dl_AM_RLC.t_StatusProhibit;
       }
 
@@ -6455,21 +7250,21 @@ void extractRlcModeCfg(uint8_t rlcMode, RlcBearerCfg *rlcDbCfg, RLC_Config_t *lc
          case RLC_AM :
             {
                if(lcCfg->choice.am)
-              {
+               {
                   DU_ALLOC_SHRABL_BUF(rlcDbCfg->u.amCfg, sizeof(AmBearerCfg));
-                 if(rlcDbCfg->u.amCfg)
-                    extractRlcAmCfg(rlcDbCfg->u.amCfg, lcCfg->choice.am);
-              }
+                  if(rlcDbCfg->u.amCfg)
+                     extractRlcAmCfg(rlcDbCfg->u.amCfg, lcCfg->choice.am);
+               }
                break;
             }
          case RLC_UM_BI_DIRECTIONAL :
             {
                if(lcCfg->choice.um_Bi_Directional)
-              {
+               {
                   DU_ALLOC_SHRABL_BUF(rlcDbCfg->u.umBiDirCfg, sizeof(UmBiDirBearerCfg));
-                 if(rlcDbCfg->u.umBiDirCfg)
+                  if(rlcDbCfg->u.umBiDirCfg)
                      extractRlcUmBiCfg(rlcDbCfg->u.umBiDirCfg, lcCfg->choice.um_Bi_Directional);
-              }
+               }
                break;
             }
          case RLC_UM_UNI_DIRECTIONAL_UL :
@@ -6477,9 +7272,9 @@ void extractRlcModeCfg(uint8_t rlcMode, RlcBearerCfg *rlcDbCfg, RLC_Config_t *lc
                if(lcCfg->choice.um_Uni_Directional_DL)
                {
                   DU_ALLOC_SHRABL_BUF(rlcDbCfg->u.umUniDirUlCfg, sizeof(UmUniDirUlBearerCfg));
-                 if(rlcDbCfg->u.umUniDirUlCfg)
+                  if(rlcDbCfg->u.umUniDirUlCfg)
                      extractRlcUmUlCfg(rlcDbCfg->u.umUniDirUlCfg, lcCfg->choice.um_Uni_Directional_DL);
-              }
+               }
                break;
             }
          case RLC_UM_UNI_DIRECTIONAL_DL :
@@ -6487,9 +7282,9 @@ void extractRlcModeCfg(uint8_t rlcMode, RlcBearerCfg *rlcDbCfg, RLC_Config_t *lc
                if(lcCfg->choice.um_Uni_Directional_UL)
                {
                   DU_ALLOC_SHRABL_BUF(rlcDbCfg->u.umUniDirDlCfg, sizeof(UmUniDirDlBearerCfg));
-                 if(rlcDbCfg->u.umUniDirDlCfg)
+                  if(rlcDbCfg->u.umUniDirDlCfg)
                      extractRlcUmDlCfg(rlcDbCfg->u.umUniDirDlCfg, lcCfg->choice.um_Uni_Directional_UL);
-              }
+               }
                break;
             }
          default:
@@ -6643,64 +7438,209 @@ void extractQosInfo(DrbQosInfo *qosToAdd, QoSFlowLevelQoSParameters_t *qosFlowCf
    qosToAdd->ulPduSessAggMaxBitRate = 0;
 }
 
-uint8_t extractDrbCfg(DRBs_ToBeSetup_Item_t *drbItem, LcCfg *macLcToAdd)
+/*******************************************************************
+ *
+ * @brief Function to extract GTP Tunnel Info from CU
+ *
+ * @details
+ *
+ *    Function : extractUpTnlInfo
+ *
+ *    Functionality: Function to extract GTP Tunnel Info from CU
+ *
+ * @params[in] F1AP message
+ * @return ROK/RFAILED
+ *
+ * ****************************************************************/
+
+uint8_t extractUpTnlInfo(uint8_t drbId, uint8_t configType,\
+   ULUPTNLInformation_ToBeSetup_List_t *tnlInfo, UpTnlCfg *upTnlInfo)
 {
-   DRB_Information_t *drbInfo = NULLP;
+   uint8_t tnlIdx;
+   uint32_t ipv4_du = 0;
+   GTPTunnel_t *gtpTunnel = NULLP;
+
+   upTnlInfo->drbId = drbId; 
+   upTnlInfo->configType = configType;
+#ifdef O1_ENABLE
+   cmInetAddr((S8*)g_cfg.DU_IPV4_Addr, &ipv4_du);
+#else
+   cmInetAddr((char *)DU_IP_V4_ADDR, &ipv4_du);
+#endif
 
-   if(drbItem->qoSInformation.present == QoSInformation_PR_choice_extension)
+   for(tnlIdx=0; tnlIdx < tnlInfo->list.count; tnlIdx++)
    {
-      if(drbItem->qoSInformation.choice.choice_extension->value.present ==
-           QoSInformation_ExtIEs__value_PR_DRB_Information)
+      if(tnlInfo->list.array[tnlIdx]->uLUPTNLInformation.present == UPTransportLayerInformation_PR_gTPTunnel)
       {
-        drbInfo = &drbItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information;
-
-        if(!macLcToAdd->drbQos)
+        if(tnlInfo->list.array[tnlIdx]->uLUPTNLInformation.choice.gTPTunnel)
         {
-           DU_ALLOC_SHRABL_BUF(macLcToAdd->drbQos, sizeof(DrbQosInfo));
-           if(macLcToAdd->drbQos == NULLP)
+           gtpTunnel = tnlInfo->list.array[tnlIdx]->uLUPTNLInformation.choice.gTPTunnel;
+           DU_ALLOC(upTnlInfo->tnlCfg1, sizeof(GtpTnlCfg));
+            if(upTnlInfo->tnlCfg1 == NULLP)
            {
-              DU_LOG("\nERROR  -->  DUAPP:Memory failed at allocating DrbQos at extractDrbCfg()");
-              return RFAILED;
+               DU_LOG("\nERROR  -->  F1AP : extractUpTnlInfo: Failed to allocate mmeory for tunnel cfg 1");
+               return RFAILED;
            }
-
-        }
-        if(drbInfo->dRB_QoS.qoS_Characteristics.present == QoS_Characteristics_PR_non_Dynamic_5QI)
-        {
-           extractQosInfo(macLcToAdd->drbQos, &drbInfo->dRB_QoS);
-            macLcToAdd->dlLcCfg.lcp = macLcToAdd->drbQos->ngRanRetPri.priorityLevel;
-        }
-        if(!macLcToAdd->snssai)
-        {
-           DU_ALLOC_SHRABL_BUF(macLcToAdd->snssai, sizeof(Snssai));
-           if(macLcToAdd->snssai == NULLP)
+           bitStringToInt(&gtpTunnel->transportLayerAddress, &upTnlInfo->tnlCfg1->ulTnlAddress);
+           upTnlInfo->tnlCfg1->dlTnlAddress = ipv4_du;
+           if(gtpTunnel->gTP_TEID.size > 0)
            {
-              DU_LOG("\nERROR  -->  DUAPP : Memory failed at allocating SNSSAI at extractDrbCfg()");
-              return RFAILED;
+              teIdStringToInt(gtpTunnel->gTP_TEID.buf, &upTnlInfo->tnlCfg1->teId);
            }
         }
-        memcpy(&macLcToAdd->snssai->sst, drbInfo->sNSSAI.sST.buf, \
-              drbInfo->sNSSAI.sST.size);
-        if(drbInfo->sNSSAI.sD)
-        {
-           memcpy(macLcToAdd->snssai->sd, drbInfo->sNSSAI.sD->buf, \
-                 drbInfo->sNSSAI.sD->size);
-        }
-      }/*End of DRB Info*/
+        break;
+      }
    }
    return ROK;
 }
+/*******************************************************************
+*
+* @brief Function to extract Drb Qos Cfg Info from CU
+*
+* @details
+*
+*    Function : extractDrbQosCfg 
+*
+*    Functionality: Function to extract Drb Qos Cfg Info from CU
+*
+* @params[in] DRB_Information_t *drbInfo, LcCfg *macLcToAdd
+* @return ROK/RFAILED
+*
+* ****************************************************************/
 
-uint8_t extractMacRbCfg(uint8_t lcId, DRBs_ToBeSetup_Item_t *drbCfg, LogicalChannelConfig_t *ulLcCfg, LcCfg *lcCfg)
+uint8_t extractDrbQosCfg(DRB_Information_t *drbInfo, LcCfg *macLcToAdd ) 
 {
-   uint8_t ret = ROK;
+   if(!macLcToAdd->drbQos)
+   {
+      DU_ALLOC_SHRABL_BUF(macLcToAdd->drbQos, sizeof(DrbQosInfo));
+      if(macLcToAdd->drbQos == NULLP)
+      {
+         DU_LOG("\nERROR  -->  DUAPP:Memory failed at allocating DrbQos at extractDrbCfg()");
+         return RFAILED;
+      }
 
-   if(drbCfg)
+   }
+   if(drbInfo->dRB_QoS.qoS_Characteristics.present == QoS_Characteristics_PR_non_Dynamic_5QI)
    {
-      ret = extractDrbCfg(drbCfg, lcCfg);
-      if(ret == RFAILED)
+      extractQosInfo(macLcToAdd->drbQos, &drbInfo->dRB_QoS);
+      macLcToAdd->dlLcCfg.lcp = macLcToAdd->drbQos->ngRanRetPri.priorityLevel;
+   }
+   if(!macLcToAdd->snssai)
+   {
+      DU_ALLOC_SHRABL_BUF(macLcToAdd->snssai, sizeof(Snssai));
+      if(macLcToAdd->snssai == NULLP)
+      {
+         DU_LOG("\nERROR  -->  DUAPP : Memory failed at allocating SNSSAI at extractDrbCfg()");
+         return RFAILED;
+      }
+   }
+   memcpy(&macLcToAdd->snssai->sst, drbInfo->sNSSAI.sST.buf, \
+         drbInfo->sNSSAI.sST.size);
+   if(drbInfo->sNSSAI.sD)
+   {
+      memcpy(macLcToAdd->snssai->sd, drbInfo->sNSSAI.sD->buf, \
+            drbInfo->sNSSAI.sD->size);
+   }
+   return ROK;
+}
+/*******************************************************************
+ *
+ * @brief Function to extract DRB info received from CU
+ *
+ * @details
+ *
+ *    Function : extractDrbCfg
+ *
+ *    Functionality: Function to extract DRB info received from CU
+ *
+ * @params[in] F1AP message
+ * @return void
+ *
+ * ****************************************************************/
+uint8_t extractDrbCfg(DRBs_ToBeSetup_Item_t *drbItem,DRBs_ToBeSetupMod_Item_t *drbSetupModItem,\
+LcCfg *macLcToAdd, UpTnlCfg *upTnlInfo)
+{
+   DRB_Information_t *drbInfo = NULLP;
+
+   if(drbItem != NULLP)
+   {
+      if(extractUpTnlInfo(drbItem->dRBID, CONFIG_ADD, &drbItem->uLUPTNLInformation_ToBeSetup_List, upTnlInfo) != ROK)
+      {
+         DU_LOG("\nERROR  -->  DUAPP : Failed to extract tunnel Cfg at extractDrbCfg()");
+         return RFAILED;
+      }
+      if(drbItem->qoSInformation.present == QoSInformation_PR_choice_extension)
+      {
+         if(drbItem->qoSInformation.choice.choice_extension->value.present == QoSInformation_ExtIEs__value_PR_DRB_Information)
+         {
+            drbInfo = &drbItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information;
+            if(extractDrbQosCfg(drbInfo , macLcToAdd) != ROK)
+            {
+               DU_LOG("\nERROR  -->  DUAPP : Failed to extract qos Cfg at extractDrbCfg()");
+               return RFAILED;
+            }
+         }
+      }
+   }
+   else if(drbSetupModItem != NULLP)
+   {
+      if(extractUpTnlInfo(drbSetupModItem->dRBID, CONFIG_ADD, &drbSetupModItem->uLUPTNLInformation_ToBeSetup_List,\
+      upTnlInfo) != ROK)
+      {
+         DU_LOG("\nERROR  -->  DUAPP : Failed to extract tunnel Cfg at extractDrbCfg()");
+         return RFAILED;
+      }
+      if(drbSetupModItem->qoSInformation.present == QoSInformation_PR_choice_extension)
+      {
+         if(drbSetupModItem->qoSInformation.choice.choice_extension->value.present ==\
+         QoSInformation_ExtIEs__value_PR_DRB_Information)
+         {
+            drbInfo = &drbSetupModItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information;
+            if(extractDrbQosCfg(drbInfo , macLcToAdd) != ROK)
+            {
+               DU_LOG("\nERROR  -->  DUAPP : Failed to extract qos Cfg at extractDrbCfg()");  
+               return RFAILED;
+            }
+
+         }
+      }
+   }
+
+   return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Function to extract RB info received from CU
+ *
+ * @details
+ *
+ *    Function : extractMacRbCfg
+ *
+ *    Functionality: Function to extract RB info received from CU
+ *
+ * @params[in] F1AP message
+ * @return ROK/RFAILED
+ *
+ * ****************************************************************/
+
+uint8_t extractMacRbCfg(uint8_t lcId, DRBs_ToBeSetup_Item_t *drbCfg,\
+DRBs_ToBeSetupMod_Item_t *drbSetupModCfg,  LogicalChannelConfig_t *ulLcCfg, LcCfg *lcCfg, UpTnlCfg *upTnlInfo)
+{
+   if(drbCfg != NULLP)
+   {
+      if(extractDrbCfg(drbCfg, NULL, lcCfg, upTnlInfo) != ROK)
+      {
+         DU_LOG("ERROR  -->  F1AP : Failed to build Drb Qos at extractMacRbCfg()");
+         return RFAILED;
+      }
+   }
+   else if(drbSetupModCfg != NULLP)
+   { 
+      if(extractDrbCfg(NULL, drbSetupModCfg, lcCfg, upTnlInfo) != ROK)
       {
          DU_LOG("ERROR  -->  F1AP : Failed to build Drb Qos at extractMacRbCfg()");
-        return ret;
+         return RFAILED;
       }
    }
    else
@@ -6719,11 +7659,27 @@ uint8_t extractMacRbCfg(uint8_t lcId, DRBs_ToBeSetup_Item_t *drbCfg, LogicalChan
    }
    else
       lcCfg->ulLcCfgPres = false;
-   return ret;
+   return ROK;
 }
 
+/*******************************************************************
+ *
+ * @brief Function processing LC config info received from CU
+ *
+ * @details
+ *
+ *    Function : procMacLcCfg
+ *
+ *    Functionality: Function processing LC config info received from CU
+ *
+ * @params[in] F1AP message
+ * @return ROK/RFAILED
+ *
+ * ****************************************************************/
+
 uint8_t procMacLcCfg(uint8_t lcId, uint8_t rbType, uint8_t configType,\
-   DRBs_ToBeSetup_Item_t *drbItem, LogicalChannelConfig_t *ulLcCfg, LcCfg *lcCfg)
+DRBs_ToBeSetup_Item_t *drbItem, DRBs_ToBeSetupMod_Item_t *drbSetupModItem, LogicalChannelConfig_t *ulLcCfg,\
+LcCfg *lcCfg, UpTnlCfg *upTnlInfo)
 {
    uint8_t ret = ROK;
 
@@ -6731,11 +7687,14 @@ uint8_t procMacLcCfg(uint8_t lcId, uint8_t rbType, uint8_t configType,\
    lcCfg->configType = configType;
    if(rbType == RB_TYPE_SRB)
    {
-      ret = extractMacRbCfg(lcId, NULL, ulLcCfg, lcCfg);
+      ret = extractMacRbCfg(lcId, NULL,NULL, ulLcCfg, lcCfg, NULL);
    }
    else if(rbType == RB_TYPE_DRB)
    {
-      ret = extractMacRbCfg(lcId, drbItem, ulLcCfg, lcCfg);
+      if(drbItem != NULL)
+        ret = extractMacRbCfg(lcId, drbItem, NULL, ulLcCfg, lcCfg, upTnlInfo);
+      else if(drbSetupModItem != NULL)
+        ret = extractMacRbCfg(lcId, NULL, drbSetupModItem, ulLcCfg, lcCfg, upTnlInfo);
    }
    return ret;
 }
@@ -6756,10 +7715,9 @@ uint8_t procMacLcCfg(uint8_t lcId, uint8_t rbType, uint8_t configType,\
  *
  * ****************************************************************/
 
-uint8_t extractRlcCfgToAddMod(struct CellGroupConfigRrc__rlc_BearerToAddModList *lcCfg, \
-   DuUeCfg *ueCfgDb)
+uint8_t extractRlcCfgToAddMod(struct CellGroupConfigRrc__rlc_BearerToAddModList *lcCfg, DuUeCfg *ueCfgDb)
 {
-  uint8_t ret, idx, rbId, lcId, rlcMode, rbType;
+  uint8_t idx, rbId, lcId, rlcMode, rbType;
   RLC_Config_t *f1RlcCfg = NULLP;
   LogicalChannelConfig_t *macUlLcCfg = NULLP;
 
@@ -6808,17 +7766,16 @@ uint8_t extractRlcCfgToAddMod(struct CellGroupConfigRrc__rlc_BearerToAddModList
      memset(&ueCfgDb->macLcCfg[idx], 0, sizeof(LcCfg));
      memset(&ueCfgDb->rlcLcCfg[idx], 0, sizeof(RlcBearerCfg));
      procRlcLcCfg(rbId, lcId, rbType, rlcMode, CONFIG_UNKNOWN, f1RlcCfg, &(ueCfgDb->rlcLcCfg[idx]));
-     ret = procMacLcCfg(lcId, rbType, CONFIG_UNKNOWN, NULL, macUlLcCfg, &ueCfgDb->macLcCfg[idx]);
-     if(ret == RFAILED)
+     if(procMacLcCfg(lcId, rbType, CONFIG_UNKNOWN, NULL, NULL, macUlLcCfg, &ueCfgDb->macLcCfg[idx], NULL) != ROK)
      {
         DU_LOG("\nERROR  -->  DU APP : Failed while filling MAC LC config at extractRlcCfgToAddMod()");
-        return ret;
+        return RFAILED;
      }
      (ueCfgDb->numRlcLcs)++;
      (ueCfgDb->numMacLcs)++;
   }
   //TODO: To send the failure cause in UeContextSetupRsp 
-  return ret;
+  return ROK;
 }
 
 /*******************************************************************
@@ -8131,79 +9088,82 @@ uint8_t extractUeReCfgCellInfo(CellGroupConfigRrc_t *cellGrp, MacUeCfg *macUeCfg
       /* Fill MacCell Group Reconfig  */
       if(cellGrp->mac_CellGroupConfig)
       {
+         macUeCfg->macCellGrpCfgPres = true;
          macCellGroup = ((MAC_CellGroupConfig_t *)(cellGrp->mac_CellGroupConfig));
          if(macCellGroup->schedulingRequestConfig)
-        {
+         {
             extractSchReqReConfig(macCellGroup->schedulingRequestConfig, &macUeCfg->macCellGrpCfg.schReqCfg);
-        }
+         }
          if(macCellGroup->tag_Config)
-        {
+         {
             extractTagReconfig(macCellGroup->tag_Config, &macUeCfg->macCellGrpCfg.tagCfg);
-        }
-        if(macCellGroup->bsr_Config)
-        {
+         }
+         if(macCellGroup->bsr_Config)
+         {
             macUeCfg->macCellGrpCfg.bsrTmrCfg.periodicTimer = macCellGroup->bsr_Config->periodicBSR_Timer;
             macUeCfg->macCellGrpCfg.bsrTmrCfg.retxTimer     = macCellGroup->bsr_Config->retxBSR_Timer;
-           if(macCellGroup->bsr_Config->logicalChannelSR_DelayTimer)
-           {
+            if(macCellGroup->bsr_Config->logicalChannelSR_DelayTimer)
+            {
                macUeCfg->macCellGrpCfg.bsrTmrCfg.srDelayTimer  =\
-                 *(macCellGroup->bsr_Config->logicalChannelSR_DelayTimer);
-           }
-        }
-        if(macCellGroup->phr_Config)
-        {
-           if(macCellGroup->phr_Config->present == MAC_CellGroupConfig__phr_Config_PR_setup)
-           {
+               *(macCellGroup->bsr_Config->logicalChannelSR_DelayTimer);
+            }
+         }
+         if(macCellGroup->phr_Config)
+         {
+            if(macCellGroup->phr_Config->present == MAC_CellGroupConfig__phr_Config_PR_setup)
+            {
                macUeCfg->macCellGrpCfg.phrCfgSetupPres = true;
                if(macCellGroup->phr_Config->choice.setup)
-              {
-                macUeCfg->macCellGrpCfg.phrCfg.periodicTimer     = \
-                  macCellGroup->phr_Config->choice.setup->phr_PeriodicTimer;
-                macUeCfg->macCellGrpCfg.phrCfg.prohibitTimer     = \
-                  macCellGroup->phr_Config->choice.setup->phr_ProhibitTimer;
-                macUeCfg->macCellGrpCfg.phrCfg.txPowerFactor     = \
-                  macCellGroup->phr_Config->choice.setup->phr_Tx_PowerFactorChange;
-                macUeCfg->macCellGrpCfg.phrCfg.multiplePHR       = \
-                  macCellGroup->phr_Config->choice.setup->multiplePHR;
-                macUeCfg->macCellGrpCfg.phrCfg.dummy             = \
-                  macCellGroup->phr_Config->choice.setup->dummy;
-                macUeCfg->macCellGrpCfg.phrCfg.phrType2OtherCell = \
-                  macCellGroup->phr_Config->choice.setup->phr_Type2OtherCell;
-                macUeCfg->macCellGrpCfg.phrCfg.phrOtherCG        = \
-                  macCellGroup->phr_Config->choice.setup->phr_ModeOtherCG;
-              }
-           }
-        }
+               {
+                  macUeCfg->macCellGrpCfg.phrCfg.periodicTimer     = \
+                  macCellGroup->phr_Config->choice.setup->phr_PeriodicTimer;
+                  macUeCfg->macCellGrpCfg.phrCfg.prohibitTimer     = \
+                  macCellGroup->phr_Config->choice.setup->phr_ProhibitTimer;
+                  macUeCfg->macCellGrpCfg.phrCfg.txPowerFactor     = \
+                  macCellGroup->phr_Config->choice.setup->phr_Tx_PowerFactorChange;
+                  macUeCfg->macCellGrpCfg.phrCfg.multiplePHR       = \
+                  macCellGroup->phr_Config->choice.setup->multiplePHR;
+                  macUeCfg->macCellGrpCfg.phrCfg.dummy             = \
+                  macCellGroup->phr_Config->choice.setup->dummy;
+                  macUeCfg->macCellGrpCfg.phrCfg.phrType2OtherCell = \
+                  macCellGroup->phr_Config->choice.setup->phr_Type2OtherCell;
+                  macUeCfg->macCellGrpCfg.phrCfg.phrOtherCG        = \
+                  macCellGroup->phr_Config->choice.setup->phr_ModeOtherCG;
+               }
+            }
+         }
       }
       /* Fill Physical Cell Group Reconfig */
       if(cellGrp->physicalCellGroupConfig)
       {
+         macUeCfg->phyCellGrpCfgPres = true;
          phyCellGrpCfg = ((PhysicalCellGroupConfig_t *)(cellGrp->physicalCellGroupConfig));
          if(phyCellGrpCfg->p_NR_FR1)
-        {
-           if(*(phyCellGrpCfg->p_NR_FR1) != macUeCfg->phyCellGrpCfg.pNrFr1)
+         {
+            if(*(phyCellGrpCfg->p_NR_FR1) != macUeCfg->phyCellGrpCfg.pNrFr1)
                macUeCfg->phyCellGrpCfg.pNrFr1 = *(phyCellGrpCfg->p_NR_FR1);
-        }
+         }
          macUeCfg->phyCellGrpCfg.pdschHarqAckCodebook = phyCellGrpCfg->pdsch_HARQ_ACK_Codebook;
       }
       /* Fill SpCell Reconfig */
       if(cellGrp->spCellConfig)
       {
+         macUeCfg->spCellCfgPres = true;
          spcellCfg = ((SpCellConfig_t *)(cellGrp->spCellConfig));  
          if(spcellCfg->servCellIndex)
-        {
+         {
             macUeCfg->spCellCfg.servCellIdx = *(spcellCfg->servCellIndex);
-        }
+         }
          /* Fill Serving cell Reconfig info */
-        if(cellGrp->spCellConfig->spCellConfigDedicated)
-        {
-           servCellCfg = ((ServingCellConfig_t *)(cellGrp->spCellConfig->spCellConfigDedicated));
+         if(cellGrp->spCellConfig->spCellConfigDedicated)
+         {
+            servCellCfg = ((ServingCellConfig_t *)(cellGrp->spCellConfig->spCellConfigDedicated));
             ret = extractSpCellDedicatedCfg(servCellCfg, &macUeCfg->spCellCfg.servCellCfg);
-           if(ret == RFAILED)
-           {
-              DU_LOG("\nERROR --> F1AP : Failed at extractSpCellDedicatedCfg()");
-           }
-        }
+            if(ret == RFAILED)
+            {
+               DU_LOG("\nERROR --> F1AP : Failed at extractSpCellDedicatedCfg()");
+            }
+         }
       }
    }
    return ret;
@@ -8435,129 +9395,132 @@ void freeAperDecodeDRBSetup(DRBs_ToBeSetup_List_t *drbSet)
    DRBs_ToBeSetup_Item_t *drbSetItem = NULLP;
    uint8_t  flowIdx =0;
    uint8_t  drbIdx =0;
-   
+
    if(drbSet->list.array != NULLP)
    {
       for(drbIdx=0; drbIdx<drbSet->list.count; drbIdx++)
       {
-        if(drbIdx==0&&drbSet->list.array[drbIdx] != NULLP)
-        {
-           drbSetItem =&drbSet->list.array[drbIdx]->value.choice.DRBs_ToBeSetup_Item;
-           if(drbSetItem->qoSInformation.choice.choice_extension != NULLP)
-           {
-              if(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.dRB_QoS.\
-                    qoS_Characteristics.choice.non_Dynamic_5QI !=NULLP)
-              {
-                 if(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.dRB_QoS.\
-                       qoS_Characteristics.choice.non_Dynamic_5QI->averagingWindow!=NULLP)
-                 {
-                    if(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.dRB_QoS.\
-                          qoS_Characteristics.choice.non_Dynamic_5QI->maxDataBurstVolume!=NULLP)
-                    {
-
-                       if(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.sNSSAI.sST.buf!=NULLP)
-                       {
-
-                          if(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.sNSSAI.sD!=NULLP)
-                          {
-
-                             if(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.sNSSAI.sD->\
-                             buf!=NULLP)
-                             {
-
-                                if(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.\
-                                      flows_Mapped_To_DRB_List.list.array != NULLP)
-                                {
-
-                                   for(flowIdx=0;flowIdx<drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
-                                   DRB_Information.flows_Mapped_To_DRB_List.list.count; flowIdx++)
-                                   {
-
-                                      if(flowIdx==0&&drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
-                                            DRB_Information.flows_Mapped_To_DRB_List.list.array[flowIdx]!=NULLP)
-                                      {
-                                         if(drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
-                                               DRB_Information.flows_Mapped_To_DRB_List.list.array[flowIdx]->\
-                                               qoSFlowLevelQoSParameters.\
-                                               qoS_Characteristics.choice.non_Dynamic_5QI!=NULLP)
-                                         {
-                                            if(drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
-                                                  DRB_Information.flows_Mapped_To_DRB_List.list.array[flowIdx]->\
-                                                  qoSFlowLevelQoSParameters.\
-                                                  qoS_Characteristics.choice.non_Dynamic_5QI->averagingWindow!=NULLP)
-                                            {
-
-                                               if(drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
-                                                     DRB_Information.flows_Mapped_To_DRB_List.list.array[flowIdx]->\
-                                                     qoSFlowLevelQoSParameters.\
-                                                     qoS_Characteristics.choice.non_Dynamic_5QI->maxDataBurstVolume!=NULLP)
-                                               {
-                                                  freeAperDecodeULTnlInfo(&drbSetItem->uLUPTNLInformation_ToBeSetup_List);
-                                                  free(drbSetItem->uLConfiguration);
-
-
-                                                  free(drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
-                                                        DRB_Information.flows_Mapped_To_DRB_List.list.array[flowIdx]->\
-                                                        qoSFlowLevelQoSParameters.\
-                                                        qoS_Characteristics.choice.non_Dynamic_5QI->maxDataBurstVolume);
-                                               }
-
-                                               free(drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
-                                                     DRB_Information.flows_Mapped_To_DRB_List.list.array[flowIdx]->\
-                                                     qoSFlowLevelQoSParameters.\
-                                                     qoS_Characteristics.choice.non_Dynamic_5QI->averagingWindow);
-                                            }
-
-                                            free(drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
-
-                                                  DRB_Information.flows_Mapped_To_DRB_List.list.array[flowIdx]->\
-                                                  qoSFlowLevelQoSParameters.\
-                                                  qoS_Characteristics.choice.non_Dynamic_5QI);
-                                         }
-                                      }
-                                      if(drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
-                                            DRB_Information.flows_Mapped_To_DRB_List.list.array[flowIdx]!=NULLP)
-                                      {
-
-                                         free(drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
-                                               DRB_Information.flows_Mapped_To_DRB_List.list.array[flowIdx]);
-                                      }
-                                   }
-
-                                   free(drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
-                                         DRB_Information.flows_Mapped_To_DRB_List.list.array);
-                                }
-
-                                free(drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
-                                DRB_Information.sNSSAI.sD->buf);
-                             }
-
-                             free(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.sNSSAI.sD);
-                          }
-
-                          free(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.sNSSAI.sST.buf);
-
-                       }
-
-                       free(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.dRB_QoS.\
+         if(drbIdx==0&&drbSet->list.array[drbIdx] != NULLP)
+         {
+            drbSetItem =&drbSet->list.array[drbIdx]->value.choice.DRBs_ToBeSetup_Item;
+            if(drbSetItem->qoSInformation.choice.choice_extension != NULLP)
+            {
+               if(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.dRB_QoS.\
+                     qoS_Characteristics.choice.non_Dynamic_5QI !=NULLP)
+               {
+                  if(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.dRB_QoS.\
+                        qoS_Characteristics.choice.non_Dynamic_5QI->averagingWindow!=NULLP)
+                  {
+                     if(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.dRB_QoS.\
+                           qoS_Characteristics.choice.non_Dynamic_5QI->maxDataBurstVolume!=NULLP)
+                     {
 
-                             qoS_Characteristics.choice.non_Dynamic_5QI->maxDataBurstVolume);
-                    }
+                        if(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.sNSSAI.sST.buf!=NULLP)
+                        {
+
+                           if(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.sNSSAI.sD!=NULLP)
+                           {
+
+                              if(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.sNSSAI.sD->\
+                                    buf!=NULLP)
+                              {
+
+                                 if(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.\
+                                       flows_Mapped_To_DRB_List.list.array != NULLP)
+                                 {
+
+                                    for(flowIdx=0;flowIdx<drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
+                                          DRB_Information.flows_Mapped_To_DRB_List.list.count; flowIdx++)
+                                    {
+
+                                       if(flowIdx==0&&drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
+                                             DRB_Information.flows_Mapped_To_DRB_List.list.array[flowIdx]!=NULLP)
+                                       {
+                                          if(drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
+                                                DRB_Information.flows_Mapped_To_DRB_List.list.array[flowIdx]->\
+                                                qoSFlowLevelQoSParameters.\
+                                                qoS_Characteristics.choice.non_Dynamic_5QI!=NULLP)
+                                          {
+                                             if(drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
+                                                   DRB_Information.flows_Mapped_To_DRB_List.list.array[flowIdx]->\
+                                                   qoSFlowLevelQoSParameters.\
+                                                   qoS_Characteristics.choice.non_Dynamic_5QI->averagingWindow!=NULLP)
+                                             {
+
+                                                if(drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
+                                                      DRB_Information.flows_Mapped_To_DRB_List.list.array[flowIdx]->\
+                                                      qoSFlowLevelQoSParameters.\
+                                                      qoS_Characteristics.choice.non_Dynamic_5QI->maxDataBurstVolume!=NULLP)
+                                                {
+
+
+                                                   free(drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
+                                                         DRB_Information.flows_Mapped_To_DRB_List.list.array[flowIdx]->\
+                                                         qoSFlowLevelQoSParameters.\
+                                                         qoS_Characteristics.choice.non_Dynamic_5QI->maxDataBurstVolume);
+                                                }
+
+                                                free(drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
+                                                      DRB_Information.flows_Mapped_To_DRB_List.list.array[flowIdx]->\
+                                                      qoSFlowLevelQoSParameters.\
+                                                      qoS_Characteristics.choice.non_Dynamic_5QI->averagingWindow);
+                                             }
+
+                                             free(drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
+
+                                                   DRB_Information.flows_Mapped_To_DRB_List.list.array[flowIdx]->\
+                                                   qoSFlowLevelQoSParameters.\
+                                                   qoS_Characteristics.choice.non_Dynamic_5QI);
+                                          }
+                                       }
+                                       if(drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
+                                             DRB_Information.flows_Mapped_To_DRB_List.list.array[flowIdx]!=NULLP)
+                                       {
+
+                                          free(drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
+                                                DRB_Information.flows_Mapped_To_DRB_List.list.array[flowIdx]);
+                                       }
+                                    }
+
+                                    free(drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
+                                          DRB_Information.flows_Mapped_To_DRB_List.list.array);
+                                 }
+
+                                 free(drbSetItem->qoSInformation.choice.choice_extension->value.choice.\
+                                       DRB_Information.sNSSAI.sD->buf);
+                              }
+
+                              free(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.sNSSAI.sD);
+                           }
+
+                           free(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.sNSSAI.sST.buf);
+
+                        }
+
+                        free(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.dRB_QoS.\
+
+                              qoS_Characteristics.choice.non_Dynamic_5QI->maxDataBurstVolume);
+                     }
 
-                    free(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.dRB_QoS.\
-                          qoS_Characteristics.choice.non_Dynamic_5QI->averagingWindow);
-                 }
+                     free(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.dRB_QoS.\
+                           qoS_Characteristics.choice.non_Dynamic_5QI->averagingWindow);
+                  }
 
-                 free(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.dRB_QoS.\
-                       qoS_Characteristics.choice.non_Dynamic_5QI);
-              }
-              free(drbSetItem->qoSInformation.choice.choice_extension);
-           }
-        }
-        if(drbSet->list.array[drbIdx]!=NULLP)
-        {
-           free(drbSet->list.array[drbIdx]);
-        }
+                  free(drbSetItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.dRB_QoS.\
+                        qoS_Characteristics.choice.non_Dynamic_5QI);
+               }
+               free(drbSetItem->qoSInformation.choice.choice_extension);
+            }
+            freeAperDecodeULTnlInfo(&drbSetItem->uLUPTNLInformation_ToBeSetup_List);
+            if(drbSetItem->uLConfiguration)
+            {
+               free(drbSetItem->uLConfiguration);
+            }
+         }
+         if(drbSet->list.array[drbIdx]!=NULLP)
+         {
+            free(drbSet->list.array[drbIdx]);
+         }
       }
       free(drbSet->list.array);
    }
@@ -8618,93 +9581,100 @@ uint8_t procUeReCfgCellInfo(MacUeCfg *macUeCfg, void *cellInfo)
  * ****************************************************************/
 void duFillModulationDetails(MacUeCfg *ueCfg, MacUeCfg *oldUeCfg, void *ueCap)
 {
-   UE_NR_Capability_t *ueNrCap;
+   UE_NR_Capability_t *ueNrCap=NULLP;
 
-   if(ueCap)
+   if(!ueCap)
+   {
+      memcpy(&ueCfg->dlModInfo, &oldUeCfg->dlModInfo, sizeof(ModulationInfo));     
+      memcpy(&ueCfg->ulModInfo, &oldUeCfg->ulModInfo, sizeof(ModulationInfo));
+   }
+   else
+   {
       ueNrCap = (UE_NR_Capability_t *)ueCap;
 
-   /* Filling DL modulation info */
-   if(ueNrCap->featureSets && ueNrCap->featureSets->featureSetsDownlinkPerCC && \
-        ueNrCap->featureSets->featureSetsDownlinkPerCC->list.array[0] && \
-        ueNrCap->featureSets->featureSetsDownlinkPerCC->list.array[0]->supportedModulationOrderDL)
-   {
-      switch(*(ueNrCap->featureSets->featureSetsDownlinkPerCC->list.array[0]->supportedModulationOrderDL))
+      /* Filling DL modulation info */
+      if(ueNrCap->featureSets && ueNrCap->featureSets->featureSetsDownlinkPerCC && \
+         ueNrCap->featureSets->featureSetsDownlinkPerCC->list.array[0] && \
+         ueNrCap->featureSets->featureSetsDownlinkPerCC->list.array[0]->supportedModulationOrderDL)
       {
-        case ModulationOrder_qpsk:
-           {
-              ueCfg->dlModInfo.modOrder = MOD_ORDER_QPSK;
-              break;
-           }
-        case ModulationOrder_qam16:
-           {
-              ueCfg->dlModInfo.modOrder = MOD_ORDER_QAM16;
-              break;
-           }
-        case ModulationOrder_qam64:
-           {
-              ueCfg->dlModInfo.modOrder = MOD_ORDER_QAM64;
-              ueCfg->dlModInfo.mcsIndex = PDSCH_MCS_INDEX;
-              ueCfg->dlModInfo.mcsTable = MCS_TABLE_QAM64;
-              break;
-           }
-        case ModulationOrder_qam256:
-           {
-              ueCfg->dlModInfo.modOrder = MOD_ORDER_QAM256;
-              break;
-           }
-        default:
-           {
-              DU_LOG("\nERROR  -->  DU APP: Incorrect downlink modulation order received. Reatining old modulation configuration");
-              memcpy(&ueCfg->dlModInfo, &oldUeCfg->dlModInfo, sizeof(ModulationInfo));
-              break;
-           }
+         switch(*(ueNrCap->featureSets->featureSetsDownlinkPerCC->list.array[0]->supportedModulationOrderDL))
+         {
+            case ModulationOrder_qpsk:
+               {
+                  ueCfg->dlModInfo.modOrder = MOD_ORDER_QPSK;
+                  break;
+               }
+            case ModulationOrder_qam16:
+               {
+                  ueCfg->dlModInfo.modOrder = MOD_ORDER_QAM16;
+                  break;
+               }
+            case ModulationOrder_qam64:
+               {
+                  ueCfg->dlModInfo.modOrder = MOD_ORDER_QAM64;
+                  ueCfg->dlModInfo.mcsIndex = PDSCH_MCS_INDEX;
+                  ueCfg->dlModInfo.mcsTable = MCS_TABLE_QAM64;
+                  break;
+               }
+            case ModulationOrder_qam256:
+               {
+                  ueCfg->dlModInfo.modOrder = MOD_ORDER_QAM256;
+                  break;
+               }
+            default:
+               {
+                  DU_LOG("\nERROR  -->  DU APP: Incorrect downlink modulation order received. Reatining old modulation configuration");
+                  memcpy(&ueCfg->dlModInfo, &oldUeCfg->dlModInfo, sizeof(ModulationInfo));
+                  break;
+               }
+         }
+      }
+      else
+      {
+         memcpy(&ueCfg->dlModInfo, &oldUeCfg->dlModInfo, sizeof(ModulationInfo));
       }
-   }
-   else
-   {
-      memcpy(&ueCfg->dlModInfo, &oldUeCfg->dlModInfo, sizeof(ModulationInfo));
-   }
 
-   /* Filling UL modulation info */
-   if(ueNrCap->featureSets && ueNrCap->featureSets->featureSetsUplinkPerCC && \
-        ueNrCap->featureSets->featureSetsUplinkPerCC->list.array[0] && \
-        ueNrCap->featureSets->featureSetsUplinkPerCC->list.array[0]->supportedModulationOrderUL)
-   {
-      switch(*(ueNrCap->featureSets->featureSetsUplinkPerCC->list.array[0]->supportedModulationOrderUL))
+      /* Filling UL modulation info */
+      if(ueNrCap->featureSets && ueNrCap->featureSets->featureSetsUplinkPerCC && \
+         ueNrCap->featureSets->featureSetsUplinkPerCC->list.array[0] && \
+         ueNrCap->featureSets->featureSetsUplinkPerCC->list.array[0]->supportedModulationOrderUL)
       {
-        case ModulationOrder_qpsk:
-           {
-              ueCfg->ulModInfo.modOrder = MOD_ORDER_QPSK;
-              break;
-           }
-        case ModulationOrder_qam16:
-           {
-              ueCfg->ulModInfo.modOrder = MOD_ORDER_QAM16;
-              ueCfg->ulModInfo.mcsIndex = PUSCH_MCS_INDEX;
-              ueCfg->ulModInfo.mcsTable = MCS_TABLE_QAM64;
-              break;
-           }
-        case ModulationOrder_qam64:
-           {
-              ueCfg->ulModInfo.modOrder = MOD_ORDER_QAM64;
-              break;
-           }
-        case ModulationOrder_qam256:
-           {
-              ueCfg->ulModInfo.modOrder = MOD_ORDER_QAM256;
-              break;
-           }
-        default:
-           {
-              DU_LOG("\nERROR  -->  DU APP: Incorrect uplink modulation order received. Reatining old modulation configuration");
-              memcpy(&ueCfg->ulModInfo, &oldUeCfg->ulModInfo, sizeof(ModulationInfo));
-              break;
-           }
+         switch(*(ueNrCap->featureSets->featureSetsUplinkPerCC->list.array[0]->supportedModulationOrderUL))
+         {
+            case ModulationOrder_qpsk:
+               {
+                  ueCfg->ulModInfo.modOrder = MOD_ORDER_QPSK;
+                  break;
+               }
+            case ModulationOrder_qam16:
+               {
+                  ueCfg->ulModInfo.modOrder = MOD_ORDER_QAM16;
+                  ueCfg->ulModInfo.mcsIndex = PUSCH_MCS_INDEX;
+                  ueCfg->ulModInfo.mcsTable = MCS_TABLE_QAM64;
+                  break;
+               }
+            case ModulationOrder_qam64:
+               {
+                  ueCfg->ulModInfo.modOrder = MOD_ORDER_QAM64;
+                  break;
+               }
+            case ModulationOrder_qam256:
+               {
+                  ueCfg->ulModInfo.modOrder = MOD_ORDER_QAM256;
+                  break;
+               }
+            default:
+               {
+                  DU_LOG("\nERROR  -->  DU APP: Incorrect uplink modulation order received. Reatining old modulation configuration");
+                  memcpy(&ueCfg->ulModInfo, &oldUeCfg->ulModInfo, sizeof(ModulationInfo));
+                  break;
+               }
+         }
+      }
+      else
+      {
+         memcpy(&ueCfg->ulModInfo, &oldUeCfg->ulModInfo, sizeof(ModulationInfo));
       }
-   }
-   else
-   {
-      memcpy(&ueCfg->ulModInfo, &oldUeCfg->ulModInfo, sizeof(ModulationInfo));
    }
 }
 
@@ -8726,7 +9696,7 @@ void duFillModulationDetails(MacUeCfg *ueCfg, MacUeCfg *oldUeCfg, void *ueCap)
  * ****************************************************************/
 
 CellGroupConfigRrc_t *extractCellGrpInfo(ProtocolExtensionContainer_4624P16_t *protocolIeExtn,\
-   DuUeCfg *ueCfgDb)
+      DuUeCfg *ueCfgDb)
 {
    uint8_t idx2 =0;
    uint16_t id =0;
@@ -8798,7 +9768,7 @@ uint8_t procSrbListToSetup(SRBs_ToBeSetup_Item_t * srbItem, LcCfg *macLcToAdd, R
    procRlcLcCfg(srbItem->sRBID, srbItem->sRBID, RB_TYPE_SRB, RLC_AM, CONFIG_ADD, NULL, rlcLcToAdd);
 
    /* Filling MAC INFO */
-   ret = procMacLcCfg(srbItem->sRBID, RB_TYPE_SRB, CONFIG_ADD, NULL, NULL, macLcToAdd);
+   ret = procMacLcCfg(srbItem->sRBID, RB_TYPE_SRB, CONFIG_ADD, NULL,NULL, NULL, macLcToAdd, NULL);
    if(ret == RFAILED)
    { 
       DU_LOG("\nERROR  -->  F1AP : Failed at MAC LC Cfg in procSrbListToSetup()");
@@ -8885,22 +9855,33 @@ uint8_t extractSrbListToSetup(SRBs_ToBeSetup_List_t *srbCfg, DuUeCfg *ueCfgDb)
  *
  * ****************************************************************/
 
-uint8_t procDrbListToSetup(uint8_t lcId, DRBs_ToBeSetup_Item_t *drbItem, LcCfg *macLcToAdd, RlcBearerCfg *rlcLcToAdd)
+uint8_t procDrbListToSetup(uint8_t lcId, DRBs_ToBeSetup_Item_t *drbItem,\
+DRBs_ToBeSetupMod_Item_t *drbSetupModItem, LcCfg *macLcToAdd, RlcBearerCfg *rlcLcToAdd, UpTnlCfg *upTnlInfo)
 {
-   uint8_t ret = ROK;
 
-   /* Filling RLC INFO */
-   procRlcLcCfg(drbItem->dRBID, lcId, RB_TYPE_DRB, drbItem->rLCMode, CONFIG_ADD, NULL, rlcLcToAdd);
+   if(drbItem != NULLP)
+   {
+      /* Filling RLC INFO */
+      procRlcLcCfg(drbItem->dRBID, lcId, RB_TYPE_DRB, drbItem->rLCMode, CONFIG_ADD, NULL, rlcLcToAdd);
 
-   /* Filling MAC INFO */
-   ret = procMacLcCfg(lcId, RB_TYPE_DRB, CONFIG_ADD, drbItem, NULL, macLcToAdd);
-   if(ret == RFAILED)
-   { 
-      DU_LOG("\nERROR  -->  F1AP : Failed at RLC LC Cfg in extractDrbListToSetup()");
-      return ret;
+      /* Filling MAC INFO */
+      if(procMacLcCfg(lcId, RB_TYPE_DRB, CONFIG_ADD, drbItem, NULL, NULL, macLcToAdd, upTnlInfo) != ROK)
+      { 
+         DU_LOG("\nERROR  --> F1AP : Failed at RLC LC Cfg in procDrbListToSetup()");
+         return RFAILED;
+      }
    }
+   else if(drbSetupModItem != NULLP)
+   {
+      procRlcLcCfg(drbSetupModItem->dRBID, lcId, RB_TYPE_DRB, drbSetupModItem->rLCMode, CONFIG_ADD, NULL, rlcLcToAdd);
 
-   return ret;
+      if(procMacLcCfg(lcId, RB_TYPE_DRB, CONFIG_ADD, NULL, drbSetupModItem, NULL, macLcToAdd, upTnlInfo) != ROK)
+      {
+         DU_LOG("\nERROR  --> F1AP : Failed at RLC LC Cfg in procDrbListToSetup()");
+         return RFAILED;
+      }
+   }
+   return ROK;
 }
 
 /*******************************************************************
@@ -8920,40 +9901,64 @@ uint8_t procDrbListToSetup(uint8_t lcId, DRBs_ToBeSetup_Item_t *drbItem, LcCfg *
  *
  * ****************************************************************/
 
-uint8_t extractDrbListToSetup(uint8_t lcId, DRBs_ToBeSetup_List_t *drbCfg, DuUeCfg *ueCfgDb)
+uint8_t extractDrbListToSetup(uint8_t lcId, DRBs_ToBeSetup_List_t *drbCfg,DRBs_ToBeSetupMod_List_t *drbSetupModCfg,\
+uint8_t drbCount, DuUeCfg *ueCfgDb)
 {
    uint8_t ret, drbIdx;
    DRBs_ToBeSetup_Item_t *drbItem = NULLP;
+   DRBs_ToBeSetupMod_ItemIEs_t *drbSetupModItem = NULLP;
 
    ret = ROK;
-   if(drbCfg)
+   if(drbCount > 0)
    {
-      for(drbIdx = 0; drbIdx < drbCfg->list.count; drbIdx++)
+      for(drbIdx = 0; drbIdx < drbCount; drbIdx++)
       {
-         drbItem = &drbCfg->list.array[drbIdx]->value.choice.DRBs_ToBeSetup_Item;
-        if(ueCfgDb->numMacLcs > MAX_NUM_LC)
-        { 
-            DU_LOG("\nERROR   -->  F1AP:  MAX LC Reached in MAC ");
-           ret = RFAILED;
-           break;
-        }
-        if(ueCfgDb->numRlcLcs > MAX_NUM_LC)
-        {
-            DU_LOG("\nERROR   -->  F1AP:  MAX LC Reached in RLC");
-           ret = RFAILED;
-           break;
-        }
-        memset(&ueCfgDb->macLcCfg[ueCfgDb->numMacLcs], 0, sizeof(LcCfg));
-        memset(&ueCfgDb->rlcLcCfg[ueCfgDb->numRlcLcs], 0, sizeof(RlcBearerCfg));
-         ret = procDrbListToSetup(lcId, drbItem, &ueCfgDb->macLcCfg[ueCfgDb->numMacLcs],\
-           &ueCfgDb->rlcLcCfg[ueCfgDb->numRlcLcs]);
-        ueCfgDb->numRlcLcs++;
-        ueCfgDb->numMacLcs++;
-        if(ret == RFAILED)
-        {
-            DU_LOG("\nERROR  -->  F1AP :  Failed at extractDrbListToSetup()");
-           break;
-        }
+         if(ueCfgDb->numMacLcs > MAX_NUM_LC)
+         { 
+            DU_LOG("\nERROR  -->  F1AP :  MAX LC Reached in MAC at extractDrbListToSetup()");
+            ret = RFAILED;
+            break;
+         }
+         if(ueCfgDb->numRlcLcs > MAX_NUM_LC)
+         {
+            DU_LOG("\nERROR  -->  F1AP :  MAX LC Reached in RLC at extractDrbListToSetup()");
+            ret = RFAILED;
+            break;
+         }
+         memset(&ueCfgDb->macLcCfg[ueCfgDb->numMacLcs], 0, sizeof(LcCfg));
+         memset(&ueCfgDb->rlcLcCfg[ueCfgDb->numRlcLcs], 0, sizeof(RlcBearerCfg));
+   
+         if(drbCfg != NULL)
+         {
+            drbItem = &drbCfg->list.array[drbIdx]->value.choice.DRBs_ToBeSetup_Item;
+            ret = procDrbListToSetup(lcId, drbItem, NULL, &ueCfgDb->macLcCfg[ueCfgDb->numMacLcs],\
+               &ueCfgDb->rlcLcCfg[ueCfgDb->numRlcLcs], &ueCfgDb->upTnlInfo[ueCfgDb->numDrb]);
+            if(ret == RFAILED)
+            {
+               DU_LOG("\nERROR  --> F1AP : Failed at extractDrbListToSetup()");
+               break;
+            }
+         }
+         else if(drbSetupModCfg != NULL)
+         {
+            drbSetupModItem = (DRBs_ToBeSetupMod_ItemIEs_t *) drbSetupModCfg->list.array[drbIdx];
+            ret = procDrbListToSetup(lcId, NULL, &(drbSetupModItem->value.choice.DRBs_ToBeSetupMod_Item) ,\
+            &ueCfgDb->macLcCfg[ueCfgDb->numMacLcs], &ueCfgDb->rlcLcCfg[ueCfgDb->numRlcLcs],\
+            &ueCfgDb->upTnlInfo[ueCfgDb->numDrb]);
+            if(ret == RFAILED)
+            {
+               DU_LOG("\nERROR  --> F1AP : Failed at extractDrbListToSetup()");
+               break;
+            }
+         }
+         ueCfgDb->numRlcLcs++;
+         ueCfgDb->numMacLcs++;
+         ueCfgDb->numDrb++;
+         if(ret == RFAILED)
+         {
+            DU_LOG("\nERROR  --> F1AP : Failed at extractDrbListToSetup()");
+            break;
+         }
       }
    }
    else
@@ -8988,7 +9993,7 @@ uint8_t extractDlRrcMsg(uint32_t gnbDuUeF1apId, uint32_t gnbCuUeF1apId, \
       DU_ALLOC_SHRABL_BUF(dlRrcMsg->rrcMsgPdu, dlRrcMsg->rrcMsgSize);
       if(!dlRrcMsg->rrcMsgPdu)
       {
-         DU_LOG("\nERROR  -->  DU APP : Memory allocation failed for RRC Msg in procUeCtxtSetupReq");
+         DU_LOG("\nERROR  --> DU APP : Memory allocation failed for RRC Msg in extractDlRrcMsg()");
          ret = RFAILED;
       }
       else
@@ -9182,654 +10187,1310 @@ void freeAperDecodeF1UeContextSetupReq(UEContextSetupRequest_t   *ueSetReq)
  * ****************************************************************/
 uint8_t procF1UeContextSetupReq(F1AP_PDU_t *f1apMsg)
 {
-   uint8_t  ret, ieIdx, ueIdx, lcId, cellIdx;
+   uint8_t  ret=0, ieIdx=0, ueIdx=0, lcId=0, cellIdx=0;
    bool ueCbFound = false;
-   uint32_t gnbCuUeF1apId, gnbDuUeF1apId, bitRateSize;
-   DuUeCb   *duUeCb = NULLP;
-   UEContextSetupRequest_t   *ueSetReq = NULLP;
-    
+   uint32_t gnbCuUeF1apId=0, gnbDuUeF1apId=0, bitRateSize=0;
+   DuUeCb   *duUeCb = NULL;
+   UEContextSetupRequest_t   *ueSetReq = NULL;
+   DRBs_ToBeSetup_List_t *drbCfg = NULL;
+
    ret = ROK;
-   
+
    ueSetReq = &f1apMsg->choice.initiatingMessage->value.choice.UEContextSetupRequest;
    for(ieIdx=0; (ieIdx < ueSetReq->protocolIEs.list.count && ret == ROK); ieIdx++)
    {
       switch(ueSetReq->protocolIEs.list.array[ieIdx]->id)
       {
-        case ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID:
-           {
-              gnbCuUeF1apId = ueSetReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_CU_UE_F1AP_ID;
-              break;
-           }
-        case ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID:
-           {
-              gnbDuUeF1apId = ueSetReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_UE_F1AP_ID;
-              break;
-           }
-        case ProtocolIE_ID_id_ServCellIndex:
-           {
-              cellIdx = ueSetReq->protocolIEs.list.array[ieIdx]->value.choice.ServCellIndex;
+         case ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID:
+            {
+               gnbCuUeF1apId = ueSetReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_CU_UE_F1AP_ID;
+               break;
+            }
+         case ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID:
+            {
+               gnbDuUeF1apId = ueSetReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_UE_F1AP_ID;
+               break;
+            }
+         case ProtocolIE_ID_id_ServCellIndex:
+            {
+               cellIdx = ueSetReq->protocolIEs.list.array[ieIdx]->value.choice.ServCellIndex;
                for(ueIdx = 0; ueIdx < MAX_NUM_UE; ueIdx++)
-              {
-                 if((duCb.actvCellLst[cellIdx]->ueCb[ueIdx].gnbDuUeF1apId == gnbDuUeF1apId)&&\
-                    (duCb.actvCellLst[cellIdx]->ueCb[ueIdx].gnbCuUeF1apId == gnbCuUeF1apId))
-                 {
-                    ueCbFound = true;
+               {
+                  if((duCb.actvCellLst[cellIdx]->ueCb[ueIdx].gnbDuUeF1apId == gnbDuUeF1apId)&&\
+                        (duCb.actvCellLst[cellIdx]->ueCb[ueIdx].gnbCuUeF1apId == gnbCuUeF1apId))
+                  {
+                     ueCbFound = true;
                      duUeCb = &duCb.actvCellLst[cellIdx]->ueCb[ueIdx];
                      DU_ALLOC(duUeCb->f1UeDb, sizeof(F1UeContextSetupDb));
                      if(duUeCb->f1UeDb)
                      {
                         memset(duUeCb->f1UeDb, 0, sizeof(F1UeContextSetupDb));
-                       duUeCb->f1UeDb->actionType = UE_CTXT_SETUP;
-                       duUeCb->f1UeDb->cellIdx = cellIdx;
-                    }
-                    else
-                    {
+                        duUeCb->f1UeDb->actionType = UE_CTXT_SETUP;
+                        duUeCb->f1UeDb->cellIdx = cellIdx;
+                     }
+                     else
+                     {
                         DU_LOG("\nERROR  -->  F1AP: Memory Alloc Failed at procF1UeContextSetupReq()");
                         ret = RFAILED;
-                    }
-                 }
-                 else
-                    ueCbFound = false;
-                 
-              }
-              if(!ueCbFound)
-              {
+                     }
+                  }
+                  else
+                     ueCbFound = false;
+
+               }
+               if(!ueCbFound)
+               {
                   DU_LOG("\nERROR  -->  F1AP: DuUeCb is not found at procF1UeContextSetupReq()");
                   ret = RFAILED;
-              }
-              break;
-           }
+               }
+               break;
+            }
          case ProtocolIE_ID_id_SpCellULConfigured:
-           /* Indicates whether the gNB-CU requests the gNB-DU to configure the uplink as no UL, 
-           UL, SUL or UL+SUL for the indicated cell for the UE */
-           break;
+            /* Indicates whether the gNB-CU requests the gNB-DU to configure the uplink as no UL, 
+               UL, SUL or UL+SUL for the indicated cell for the UE */
+            break;
          case ProtocolIE_ID_id_CUtoDURRCInformation:
-           {
+            {
                if(ueSetReq->protocolIEs.list.array[ieIdx]->value.choice.CUtoDURRCInformation.uE_CapabilityRAT_ContainerList)
                {
                   duUeCb->f1UeDb->duUeCfg.ueNrCapability = \
-                     extractUeCapability(ueSetReq->protocolIEs.list.array[ieIdx]->value.choice.CUtoDURRCInformation.\
-                        uE_CapabilityRAT_ContainerList, duUeCb);
+                  extractUeCapability(ueSetReq->protocolIEs.list.array[ieIdx]->value.choice.CUtoDURRCInformation.\
+                  uE_CapabilityRAT_ContainerList, duUeCb);
                }
-              if(ueSetReq->protocolIEs.list.array[ieIdx]->value.choice.CUtoDURRCInformation.iE_Extensions)
-              {
+               if(ueSetReq->protocolIEs.list.array[ieIdx]->value.choice.CUtoDURRCInformation.iE_Extensions)
+               {
                   duUeCb->f1UeDb->duUeCfg.cellGrpCfg = extractCellGrpInfo(ueSetReq->protocolIEs.list.array[ieIdx]->\
-                    value.choice.CUtoDURRCInformation.iE_Extensions, &duUeCb->f1UeDb->duUeCfg);
-                 if(!duUeCb->f1UeDb->duUeCfg.cellGrpCfg)
-                 {
-                    DU_LOG("\nERROR  -->  F1AP: Failed to extract cell Grp Info");
-                    //TODO: Update the failure cause in ue context Setup Response
-                    ret = RFAILED;
-                 }
-              }
+                        value.choice.CUtoDURRCInformation.iE_Extensions, &duUeCb->f1UeDb->duUeCfg);
+                  if(!duUeCb->f1UeDb->duUeCfg.cellGrpCfg)
+                  {
+                     DU_LOG("\nERROR  -->  F1AP: Failed to extract cell Grp Info");
+                     //TODO: Update the failure cause in ue context Setup Response
+                     ret = RFAILED;
+                  }
+               }
                break;
             } 
          case ProtocolIE_ID_id_SCell_ToBeSetup_List:
-           {
-              DU_LOG("\nINFO   -->  DU_APP: Received SCell_ToBeSetup_List but  Not processing the list");
-           break;
-           }
+            {
+               DU_LOG("\nINFO   -->  DU_APP: Received SCell_ToBeSetup_List but  Not processing the list");
+               break;
+            }
          case ProtocolIE_ID_id_SRBs_ToBeSetup_List:
-           {
-              if(extractSrbListToSetup(&ueSetReq->protocolIEs.list.array[ieIdx]->value.choice.SRBs_ToBeSetup_List,\
-                 &duUeCb->f1UeDb->duUeCfg))
-              {
-                 DU_LOG("\nERROR  -->  DU APP : Failed at extractSrbListToSetup()");
-                 //TODO: Update the failure cause in ue context Setup Response
-                 ret = RFAILED;
-              }
-              break;
-           }
+            {
+               if(extractSrbListToSetup(&ueSetReq->protocolIEs.list.array[ieIdx]->value.choice.SRBs_ToBeSetup_List,\
+               &duUeCb->f1UeDb->duUeCfg))
+               {
+                  DU_LOG("\nERROR  -->  DU APP : Failed at extractSrbListToSetup()");
+                  //TODO: Update the failure cause in ue context Setup Response
+                  ret = RFAILED;
+               }
+               break;
+            }
          case ProtocolIE_ID_id_DRBs_ToBeSetup_List:
-           {
-              lcId = getDrbLcId(&duUeCb->drbBitMap);
-              if(lcId != RFAILED)
-              {
-                  if(extractDrbListToSetup(lcId, &ueSetReq->protocolIEs.list.array[ieIdx]->value.choice.DRBs_ToBeSetup_List,\
-                    &duUeCb->f1UeDb->duUeCfg))
-                 {
-                    DU_LOG("\nERROR  -->  DU APP : Failed at extractDrbListToSetup()");
-                    //TODO: Update the failure cause in ue context Setup Response
-                    ret = RFAILED;
-                 }
-              }
-              else 
-                 ret = RFAILED;
+            {
+               lcId = getDrbLcId(&duUeCb->drbBitMap);
+               if(lcId != RFAILED)
+               {
+                  drbCfg = &ueSetReq->protocolIEs.list.array[ieIdx]->value.choice.DRBs_ToBeSetup_List;
+                  if(extractDrbListToSetup(lcId, drbCfg, NULL, drbCfg->list.count, &duUeCb->f1UeDb->duUeCfg))
+                  {
+                     DU_LOG("\nERROR  -->  DU APP : Failed at extractDrbListToSetup()");
+                     //TODO: Update the failure cause in ue context Setup Response
+                     ret = RFAILED;
+                  }
+               }
+               else 
+                  ret = RFAILED;
                break;
-           }
-        case ProtocolIE_ID_id_RRCContainer:
-           {
-              /* Filling Dl RRC Msg Info */
-              DU_ALLOC_SHRABL_BUF(duUeCb->f1UeDb->dlRrcMsg, sizeof(F1DlRrcMsg));
-              if(!duUeCb->f1UeDb->dlRrcMsg)
-              {
-                 DU_LOG("\nERROR  -->  DU APP : Memory allocation failed for DL RRC Msg in procUeCtxtSetupReq()");
-                 ret = RFAILED;
-              }
-              else
-              {
-                 memset(duUeCb->f1UeDb->dlRrcMsg, 0, sizeof(F1DlRrcMsg));
-                 ret = extractDlRrcMsg(gnbDuUeF1apId, gnbCuUeF1apId, duUeCb->f1UeDb->dlRrcMsg,\
-                    &ueSetReq->protocolIEs.list.array[ieIdx]->value.choice.RRCContainer);
-              }          
-              break;
-           }
-        case ProtocolIE_ID_id_RRCDeliveryStatusRequest:
-           {
-              if(duUeCb->f1UeDb->dlRrcMsg->rrcMsgPdu)
-              {
-                 duUeCb->f1UeDb->dlRrcMsg->deliveryStatRpt = true;
-              }
-              else
-              {
-                 DU_LOG("\nERROR  -->  Ignoring delivery report, since rrcContainer is not present");
-              }
-              break;
-           }
-        case ProtocolIE_ID_id_GNB_DU_UE_AMBR_UL:
-            {
+            }
+         case ProtocolIE_ID_id_RRCContainer:
+            {
+               /* Filling Dl RRC Msg Info */
+               DU_ALLOC_SHRABL_BUF(duUeCb->f1UeDb->dlRrcMsg, sizeof(F1DlRrcMsg));
+               if(!duUeCb->f1UeDb->dlRrcMsg)
+               {
+                  DU_LOG("\nERROR  -->  DU APP : Memory allocation failed for DL RRC Msg in procUeCtxtSetupReq()");
+                  ret = RFAILED;
+               }
+               else
+               {
+                  duUeCb->f1UeDb->dlRrcMsgPres = true;
+                  memset(duUeCb->f1UeDb->dlRrcMsg, 0, sizeof(F1DlRrcMsg));
+                  ret = extractDlRrcMsg(gnbDuUeF1apId, gnbCuUeF1apId, duUeCb->f1UeDb->dlRrcMsg,\
+                        &ueSetReq->protocolIEs.list.array[ieIdx]->value.choice.RRCContainer);
+               }         
+               break;
+            }
+         case ProtocolIE_ID_id_RRCDeliveryStatusRequest:
+            {
+               if(duUeCb->f1UeDb->dlRrcMsg->rrcMsgPdu)
+               {
+                  duUeCb->f1UeDb->dlRrcMsg->deliveryStatRpt = true;
+               }
+               else
+               {
+                  DU_LOG("\nERROR  -->  Ignoring delivery report, since rrcContainer is not present");
+               }
+               break;
+            }
+         case ProtocolIE_ID_id_GNB_DU_UE_AMBR_UL:
+            {
                /* MaximumBitRate Uplink */
-              bitRateSize = ueSetReq->protocolIEs.list.array[ieIdx]->value.choice.BitRate.size;
-              if(bitRateSize > 0)
-              {
+               bitRateSize = ueSetReq->protocolIEs.list.array[ieIdx]->value.choice.BitRate.size;
+               if(bitRateSize > 0)
+               {
                   DU_ALLOC_SHRABL_BUF(duUeCb->f1UeDb->duUeCfg.ambrCfg, bitRateSize);
-                 if(!duUeCb->f1UeDb->duUeCfg.ambrCfg)
-                 {
-                    DU_LOG("\nERROR  -->  DU APP : Memory allocation failed for bitRate in procUeCtxtSetupReq");
-                    ret = RFAILED;
-                 }
-                 else
-                 {
-                    memset(duUeCb->f1UeDb->duUeCfg.ambrCfg, 0, sizeof(AmbrCfg)); 
+                  if(!duUeCb->f1UeDb->duUeCfg.ambrCfg)
+                  {
+                     DU_LOG("\nERROR  -->  DU APP : Memory allocation failed for bitRate in procUeCtxtSetupReq");
+                     ret = RFAILED;
+                  }
+                  else
+                  {
+                     memset(duUeCb->f1UeDb->duUeCfg.ambrCfg, 0, sizeof(AmbrCfg)); 
                      memcpy(&duUeCb->f1UeDb->duUeCfg.ambrCfg->ulBr,
-                    ueSetReq->protocolIEs.list.array[ieIdx]->value.choice.BitRate.buf, bitRateSize);
-                     duUeCb->f1UeDb->duUeCfg.ambrCfg->dlBr = 0;
-                 }
-              }
-              else
-                 ret = RFAILED;
-              break;
-           }
-        default:
+                           ueSetReq->protocolIEs.list.array[ieIdx]->value.choice.BitRate.buf, bitRateSize);
+                  }
+               }
+               else
+                  ret = RFAILED;
+               break;
+            }
+         default:
+            {
+               break;
+            }
+      }
+   }
+   if(ret == RFAILED)
+   {
+      /*TODO : Negative case*/
+      // BuildAndSendUeContextSetupRsp(cellId,ueIdx);
+      DU_LOG("\nERROR  -->  F1AP: Failed to process UE CNTXT SETUP REQ at procF1UeContextSetupReq()"); 
+   }
+   else
+      ret = duProcUeContextSetupRequest(duUeCb);
+
+   freeAperDecodeF1UeContextSetupReq(ueSetReq); 
+   return ret;
+
+}
+/*******************************************************************
+ * @brief Free the memory allocated for Dl Tunnel Info
+ *
+ * @details
+ *
+ *    Function : freeDlTnlInfo
+ *
+ *    Functionality:
+ *       Free the memory allocated for Dl Tunnel Info
+ *
+ * @params[in] DLUPTNLInformation_ToBeSetup_List_t *
+ * @return void
+ *
+ * ****************************************************************/
+
+void freeDlTnlInfo(DLUPTNLInformation_ToBeSetup_List_t *tnlInfo)
+{
+   uint8_t arrIdx = 0;
+
+   for(arrIdx=0; arrIdx < tnlInfo->list.count; arrIdx++)
+   {
+      DU_FREE(tnlInfo->list.array[arrIdx]->dLUPTNLInformation.choice.gTPTunnel, sizeof(GTPTunnel_t));
+   }
+}
+
+/*******************************************************************
+ * @brief Free the memory allocated for DRB setup List
+ *
+ * @details
+ *
+ *    Function : freeDrbSetupList
+ *
+ *    Functionality:
+ *       Free the memory allocated for DRB setup list
+ *
+ * @params[in] DRBs_Setup_List_t *
+ * @return void
+ *
+ * ****************************************************************/
+void freeDrbSetupList(DRBs_Setup_List_t *drbSetupList)
+{
+   uint8_t arrIdx = 0;
+   DRBs_Setup_ItemIEs_t *drbItemIe = NULLP;
+
+   for(arrIdx = 0; arrIdx < drbSetupList->list.count; arrIdx++)
+   {
+      drbItemIe = ((DRBs_Setup_ItemIEs_t *)drbSetupList->list.array[arrIdx]);
+      freeDlTnlInfo(&drbItemIe->value.choice.DRBs_Setup_Item.dLUPTNLInformation_ToBeSetup_List);
+   }
+}
+
+/*******************************************************************
+ * @brief Free the memory allocated for UE Setup response
+ *
+ * @details
+ *
+ *    Function : FreeUeContextSetupRsp
+ *
+ *    Functionality:
+ *       Free the memory allocated for UE Setup response
+ *
+ * @params[in] F1AP PDU for UE setup response
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+void FreeUeContextSetupRsp(F1AP_PDU_t *f1apMsg)
+{
+   uint8_t idx;
+   UEContextSetupResponse_t *ueSetRsp = NULLP;
+
+   if(f1apMsg)
+   {
+      if(f1apMsg->choice.successfulOutcome)
+      {
+        ueSetRsp = &f1apMsg->choice.successfulOutcome->value.choice.\
+                   UEContextSetupResponse;
+        if(ueSetRsp->protocolIEs.list.array)
+        {
+           for(idx = 0; idx < ueSetRsp->protocolIEs.list.count; idx++)
            {
-              break;
+              if(ueSetRsp->protocolIEs.list.array[idx])
+              {
+                 switch(ueSetRsp->protocolIEs.list.array[idx]->id)
+                 {
+                    case ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID:
+                       break;
+                    case ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID:
+                       break;
+                    case ProtocolIE_ID_id_DUtoCURRCInformation:
+                       {
+                          CellGroupConfig_t *cellGrpCfg = NULLP;
+                          cellGrpCfg  = &ueSetRsp->protocolIEs.list.array[idx]->value.choice.\
+                                        DUtoCURRCInformation.cellGroupConfig;
+                          if(cellGrpCfg->buf != NULLP)
+                          {
+                             DU_FREE(cellGrpCfg->buf, cellGrpCfg->size);
+                             cellGrpCfg = NULLP;
+                          }
+                          break;
+                       }
+                    case ProtocolIE_ID_id_DRBs_Setup_List:
+                       {
+                           freeDrbSetupList(&ueSetRsp->protocolIEs.list.array[idx]->value.choice.DRBs_Setup_List); 
+                           break;
+                       }
+                    default:
+                       DU_LOG("\nERROR  -->  DUAPP: Invalid Id %ld at FreeUeContextSetupRsp()",\
+                       ueSetRsp->protocolIEs.list.array[idx]->id);
+                       break;
+                 }
+                 DU_FREE(ueSetRsp->protocolIEs.list.array[idx],\
+                       sizeof(UEContextSetupResponseIEs_t));
+              }
            }
+           DU_FREE(ueSetRsp->protocolIEs.list.array, \
+                 ueSetRsp->protocolIEs.list.size);
+        }
+        DU_FREE(f1apMsg->choice.successfulOutcome, sizeof(SuccessfulOutcome_t));
       }
+      DU_FREE(f1apMsg, sizeof(F1AP_PDU_t));
    }
-   if(ret == RFAILED)
+}
+
+/*******************************************************************
+ *
+ * @brief Builds Ue context Setup Rsp DU To CU Info
+ *
+ * @details
+ *
+ *    Function : EncodeUeCntxtDuToCuInfo
+ *
+ *    Functionality: Builds Ue context Setup Rsp DU To CU Info
+ *
+ * @params[in] CellGroupConfig_t *, CellGroupConfigRrc_t * 
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ ******************************************************************/
+
+uint8_t EncodeUeCntxtDuToCuInfo(CellGroupConfig_t *duToCuCellGrp, CellGroupConfigRrc_t *duCellGrpCfg)
+{
+   asn_enc_rval_t        encRetVal;
+
+   xer_fprint(stdout, &asn_DEF_CellGroupConfigRrc, duCellGrpCfg);
+   memset((uint8_t *)encBuf, 0, ENC_BUF_MAX_LEN);
+   encBufSize = 0;
+   encRetVal = aper_encode(&asn_DEF_CellGroupConfigRrc, 0, duCellGrpCfg, PrepFinalEncBuf, encBuf);
+   /* Encode results */
+   if(encRetVal.encoded == ENCODE_FAIL)
+   {
+      DU_LOG( "\nERROR  -->  F1AP : Could not encode UeCntxtDuToCuInfo (at %s)\n",\
+           encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
+      return RFAILED;
+   }
+   else
+   {
+      DU_LOG("\nDEBUG   -->  F1AP : Created APER encoded buffer for UeCntxtDuToCuInfo\n");
+      for(int i=0; i< encBufSize; i++)
+      {
+        printf("%x",encBuf[i]);
+      }
+   }
+   duToCuCellGrp->size = encBufSize;
+   DU_ALLOC(duToCuCellGrp->buf, duToCuCellGrp->size);
+   if(!duToCuCellGrp->buf)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in UeCntxtDuToCuInfo");
+   }
+   memcpy(duToCuCellGrp->buf, encBuf, duToCuCellGrp->size);
+   return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Fills Dl Gtp tunnel Info
+ *
+ * @details
+ *
+ *    Function : fillGtpTunnelforDl
+ *
+ *    Functionality: Fills Dl Gtp tunnel Info
+ *
+ * @params[in] 
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+
+uint8_t fillGtpTunnelforDl(GTPTunnel_t *gtpDl, GtpTnlCfg *gtpUeCfg)
+{
+   uint8_t bufSize = 0;
+
+   gtpDl->transportLayerAddress.size   = 4*sizeof(uint8_t);
+   DU_ALLOC(gtpDl->transportLayerAddress.buf, gtpDl->transportLayerAddress.size);
+   if(gtpDl->transportLayerAddress.buf == NULLP)
+   {
+      return RFAILED;
+   }
+   memcpy(gtpDl->transportLayerAddress.buf, &gtpUeCfg->dlTnlAddress, gtpDl->transportLayerAddress.size);
+
+   /*GTP TEID*/
+   gtpDl->gTP_TEID.size = 4 * sizeof(uint8_t);
+   DU_ALLOC(gtpDl->gTP_TEID.buf, gtpDl->gTP_TEID.size);
+   if(gtpDl->gTP_TEID.buf == NULLP)
+   {
+      return RFAILED;
+   }
+   bufSize = 3; /*forming an Octect String*/
+   fillTeIdString(bufSize, gtpUeCfg->teId, gtpDl->gTP_TEID.buf);
+
+   return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Fills DL Tunnel Setup List
+ *
+ * @details
+ *
+ *    Function : fillDlTnlSetupList
+ *
+ *    Functionality: Fills the DL Tunnel Setup List
+ *
+ * @params[in] 
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+
+uint8_t fillDlTnlSetupList(DLUPTNLInformation_ToBeSetup_List_t *dlTnlInfo, UpTnlCfg *tnlCfg)
+{
+   uint8_t ret = ROK, arrIdx = 0, eleCount = 0;
+
+   eleCount = 1;
+   dlTnlInfo->list.count = eleCount; 
+   dlTnlInfo->list.size = (eleCount * sizeof(DLUPTNLInformation_ToBeSetup_Item_t *));
+
+   /* Initialize the DL Tnl Setup List Members */
+   DU_ALLOC(dlTnlInfo->list.array, dlTnlInfo->list.size);
+   if(dlTnlInfo->list.array == NULLP)
+   {
+      DU_LOG(" ERROR  -->  F1AP : Memory allocation for DL Tnl Setup List in fillDlTnlSetupList()");
+      ret = RFAILED;
+   }
+   for(arrIdx=0; arrIdx < eleCount; arrIdx++)
+   {
+      DU_ALLOC(dlTnlInfo->list.array[arrIdx], sizeof(DLUPTNLInformation_ToBeSetup_Item_t));
+      if(dlTnlInfo->list.array[arrIdx] == NULLP)
+      {
+         DU_LOG(" ERROR  -->  F1AP : Memory allocation for arrIdx [%d] failed in fillDlTnlSetupList()", arrIdx);
+         return RFAILED;
+      }
+      dlTnlInfo->list.array[arrIdx]->dLUPTNLInformation.present = UPTransportLayerInformation_PR_gTPTunnel;
+      DU_ALLOC(dlTnlInfo->list.array[arrIdx]->dLUPTNLInformation.choice.gTPTunnel, sizeof(GTPTunnel_t));
+      if(dlTnlInfo->list.array[arrIdx]->dLUPTNLInformation.choice.gTPTunnel == NULLP)
+      {
+         DU_LOG(" ERROR  -->  F1AP : Memory allocation for DL tunnel info in fillDlTnlSetupList()");
+         return RFAILED;
+      }
+      ret = fillGtpTunnelforDl(dlTnlInfo->list.array[arrIdx]->dLUPTNLInformation.choice.gTPTunnel,\
+               tnlCfg->tnlCfg1);
+      if(ret != ROK)
+         break;
+   }
+   return ret;
+}
+
+/*******************************************************************
+ *
+ * @brief Fills the Drb Setup List for Ue Context Setup Response
+ *
+ * @details
+ *
+ *    Function : fillDrbSetupList
+ *
+ *    Functionality: Fills the Drb Setup List for Ue Context Setup Response
+ *
+ * @params[in] 
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t fillDrbSetupList(DRBs_Setup_List_t *drbSetupList, DuUeCfg *ueCfg)
+{
+   uint8_t ret = ROK, arrIdx = 0, eleCount = 0;
+   DRBs_Setup_ItemIEs_t *drbItemIe = NULLP;
+
+   eleCount = ueCfg->numDrb;
+   drbSetupList->list.count = eleCount;
+   drbSetupList->list.size = \
+       (eleCount * sizeof(DRBs_Setup_Item_t *));
+
+   /* Initialize the Drb Setup List Members */
+   DU_ALLOC(drbSetupList->list.array, drbSetupList->list.size);
+   if(drbSetupList->list.array == NULLP)
+   {
+      DU_LOG(" ERROR  -->  F1AP : Memory allocation for DRB Setup List in fillDrbSetupList()");
+      ret = RFAILED;
+   }
+
+   for(arrIdx=0; arrIdx < eleCount; arrIdx++)
+   {
+      DU_ALLOC(drbSetupList->list.array[arrIdx], sizeof(DRBs_Setup_Item_t));
+      if(drbSetupList->list.array[arrIdx] == NULLP)
+      {
+         DU_LOG(" ERROR  -->  F1AP : Memory allocation for arrIdx [%d] failed in fillDrbSetupList()", arrIdx);
+         return RFAILED;
+      }
+      drbItemIe = ((DRBs_Setup_ItemIEs_t *)drbSetupList->list.array[arrIdx]);
+      drbItemIe->id = ProtocolIE_ID_id_DRBs_Setup_Item;
+      drbItemIe->criticality = Criticality_reject;
+      drbItemIe->value.present = DRBs_Setup_ItemIEs__value_PR_DRBs_Setup_Item;
+      drbItemIe->value.choice.DRBs_Setup_Item.dRBID = ueCfg->upTnlInfo[arrIdx].drbId;
+      ret = fillDlTnlSetupList(&drbItemIe->value.choice.DRBs_Setup_Item.dLUPTNLInformation_ToBeSetup_List,\
+          &ueCfg->upTnlInfo[arrIdx]);
+      if(ret != ROK)
+         break;
+   }
+   return ret;
+}
+
+/*******************************************************************
+ *
+ * @brief Builds and sends the UE Setup Response
+ *
+ * @details
+ *
+ *    Function : BuildAndSendUeContextSetupRsp
+ *
+ *    Functionality: Constructs the UE Setup Response and sends
+ *                   it to the DU through SCTP.
+ *
+ * @params[in] uint8_t cellId,uint8_t ueIdx
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t BuildAndSendUeContextSetupRsp(uint8_t cellId,uint8_t ueIdx)
+{
+   uint8_t   idx, ret, cellIdx, elementCnt;
+   uint32_t  gnbCuUeF1apId;   /* gNB-CU UE F1AP Id */
+   uint32_t  gnbDuUeF1apId;   /* gNB-DU UE F1AP Id */
+   asn_enc_rval_t  encRetVal;        /* Encoder return value */
+   F1AP_PDU_t               *f1apMsg = NULLP;
+   UEContextSetupResponse_t *ueSetRsp = NULLP;
+   CellGroupConfigRrc_t     *cellGrpCfg = NULLP;
+   DuUeCb                   *ueCb = NULLP;
+
+   DU_LOG("\n INFO   -->  F1AP : Building UE Context Setup Response for cellId %d, ueIdx %d\n", cellId, ueIdx);
+
+   while(true)
+   {
+      DU_ALLOC(f1apMsg, sizeof(F1AP_PDU_t));
+      if(f1apMsg == NULLP)
+      {
+        DU_LOG(" ERROR  -->  F1AP : Memory allocation for F1AP-PDU failed");
+        ret = RFAILED;
+        break;
+      }
+
+      f1apMsg->present = F1AP_PDU_PR_successfulOutcome;
+      DU_ALLOC(f1apMsg->choice.successfulOutcome,
+           sizeof(SuccessfulOutcome_t));
+      if(f1apMsg->choice.successfulOutcome == NULLP)
+      {
+        DU_LOG(" ERROR  -->  F1AP : Memory allocation for      F1AP-PDU failed");
+        ret = RFAILED;
+        break;
+      }
+
+      f1apMsg->choice.successfulOutcome->procedureCode = \
+                                                        ProcedureCode_id_UEContextSetup;
+      f1apMsg->choice.successfulOutcome->criticality = Criticality_reject;
+      f1apMsg->choice.successfulOutcome->value.present = \
+                                                        SuccessfulOutcome__value_PR_UEContextSetupResponse;
+
+      ueSetRsp =
+        &f1apMsg->choice.successfulOutcome->value.choice.UEContextSetupResponse;
+      elementCnt = 4;
+      ueSetRsp->protocolIEs.list.count = elementCnt;
+      ueSetRsp->protocolIEs.list.size = \
+                                       elementCnt * sizeof(UEContextSetupResponse_t *);
+
+      /* Initialize the UESetup members */
+      DU_ALLOC(ueSetRsp->protocolIEs.list.array, \
+           ueSetRsp->protocolIEs.list.size);
+      if(ueSetRsp->protocolIEs.list.array == NULLP)
+      {
+        DU_LOG(" ERROR  -->  F1AP : Memory allocation for UE Setup Response failed");
+        ret = RFAILED;
+        break;
+      }
+
+      for(idx=0; idx<elementCnt; idx++)
+      {
+        DU_ALLOC(ueSetRsp->protocolIEs.list.array[idx],\
+              sizeof(UEContextSetupResponseIEs_t));
+        if(ueSetRsp->protocolIEs.list.array[idx] == NULLP)
+        {
+           DU_LOG(" ERROR  -->  F1AP : Memory allocation for UE Setup Response failed");
+           ret = RFAILED;
+           break;
+        }
+      }
+      /* Fetching Ue Cb Info*/
+      GET_CELL_IDX(cellId, cellIdx);
+      gnbDuUeF1apId = duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].gnbDuUeF1apId;
+      gnbCuUeF1apId = duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].gnbCuUeF1apId;
+      ueCb = &duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1];
+
+      idx = 0;
+      /*GNB CU UE F1AP ID*/
+      ueSetRsp->protocolIEs.list.array[idx]->id        = \
+                                                 ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID;
+      ueSetRsp->protocolIEs.list.array[idx]->criticality = Criticality_reject;
+      ueSetRsp->protocolIEs.list.array[idx]->value.present = \
+                                                            UEContextSetupResponseIEs__value_PR_GNB_CU_UE_F1AP_ID;
+      ueSetRsp->protocolIEs.list.array[idx]->value.choice.GNB_CU_UE_F1AP_ID = gnbCuUeF1apId;
+
+      /*GNB DU UE F1AP ID*/
+      idx++;
+      ueSetRsp->protocolIEs.list.array[idx]->id        = \
+                                                 ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID;
+      ueSetRsp->protocolIEs.list.array[idx]->criticality = Criticality_reject;
+      ueSetRsp->protocolIEs.list.array[idx]->value.present = \
+                                                            UEContextSetupResponseIEs__value_PR_GNB_DU_UE_F1AP_ID;
+      ueSetRsp->protocolIEs.list.array[idx]->value.choice.GNB_DU_UE_F1AP_ID = gnbDuUeF1apId;
+
+
+      /*DUtoCURRC Information */
+      idx++;
+      ueSetRsp->protocolIEs.list.array[idx]->id  = \
+                                                  ProtocolIE_ID_id_DUtoCURRCInformation;
+      ueSetRsp->protocolIEs.list.array[idx]->criticality = Criticality_reject;
+      ueSetRsp->protocolIEs.list.array[idx]->value.present =\
+                                                           UEContextSetupResponseIEs__value_PR_DUtoCURRCInformation;
+      if(ueCb->f1UeDb)
+      {
+         if(ueCb->f1UeDb->duUeCfg.cellGrpCfg)
+        {
+           cellGrpCfg = (CellGroupConfigRrc_t*)ueCb->f1UeDb->duUeCfg.cellGrpCfg;
+           ret = EncodeUeCntxtDuToCuInfo(&ueSetRsp->protocolIEs.list.array[idx]->value.\
+                    choice.DUtoCURRCInformation.cellGroupConfig, cellGrpCfg);
+            if(ret == RFAILED)
+           {
+               DU_LOG("\nERROR  -->  F1AP : Failed to EncodeUeCntxtDuToCuInfo in BuildAndSendUeContextSetupRsp()");
+               freeF1UeDb(ueCb->f1UeDb);
+               ueCb->f1UeDb = NULLP;
+               break;
+           }
+         }
+      }
+      else
+      {
+         DU_LOG("\nERROR  -->  F1AP : Failed to form DUtoCU RRCInfo at BuildAndSendUeContextSetupRsp()");
+         ret = RFAILED;
+         break;
+      }
+
+      /* Drb Setup List */
+      idx++;
+      ueSetRsp->protocolIEs.list.array[idx]->id  = \
+                                ProtocolIE_ID_id_DRBs_Setup_List;
+      ueSetRsp->protocolIEs.list.array[idx]->criticality = Criticality_reject;
+      ueSetRsp->protocolIEs.list.array[idx]->value.present =\
+                                UEContextSetupResponseIEs__value_PR_DRBs_Setup_List;
+      ret = fillDrbSetupList(&ueSetRsp->protocolIEs.list.array[idx]->value.choice.DRBs_Setup_List,\
+               &ueCb->f1UeDb->duUeCfg);
+      if(ret == RFAILED)
+      {
+         DU_LOG("\nERROR  -->  F1AP : Failed to fillDrbSetupList in BuildAndSendUeContextSetupRsp()");
+         freeF1UeDb(ueCb->f1UeDb);
+         ueCb->f1UeDb = NULLP;
+         break;
+      }
+
+       /* Free UeContext Db created during Ue context Req */
+       freeF1UeDb(ueCb->f1UeDb);
+       ueCb->f1UeDb = NULLP;
+
+      /* TODO: To send Drb list */
+      xer_fprint(stdout, &asn_DEF_F1AP_PDU, f1apMsg);
+
+      /* Encode the UE context setup response type as APER */
+      memset((uint8_t *)encBuf, 0, ENC_BUF_MAX_LEN);
+      encBufSize = 0;
+      encRetVal = aper_encode(&asn_DEF_F1AP_PDU, 0, f1apMsg, PrepFinalEncBuf,\
+           encBuf);
+      /* Encode results */
+      if(encRetVal.encoded == ENCODE_FAIL)
+      {
+        DU_LOG( "\nERROR  -->  F1AP : Could not encode UE Context Setup Response structure (at %s)\n",\
+              encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
+        ret = RFAILED;
+        break;
+      }
+      else
+      {
+        DU_LOG("\nDEBUG   -->  F1AP : Created APER encoded buffer for UE Context Setup Response\n");
+        for(int i=0; i< encBufSize; i++)
+        {
+           printf("%x",encBuf[i]);
+        }
+      }
+
+      /* Sending  msg  */
+      if(sendF1APMsg() != ROK)
+      {
+        DU_LOG("\nERROR  -->  F1AP : Sending UE Context Setup Response failed");
+        ret = RFAILED;
+        break;
+      }
+      break;
+   }
+   FreeUeContextSetupRsp(f1apMsg);
+   return ret;
+}/* End of BuildAndSendUeContextSetupRsp */
+/*******************************************************************
+*
+* @brief  Build And Send Ue Context Rsp 
+*
+* @details
+*
+*    Function : BuildAndSendUeCtxtRsp 
+*
+*    Functionality : Build And Send Ue Context Rsp
+
+* @params[in]
+* @return sucess = ROK
+*         failure = RFAILED
+*
+* ****************************************************************/
+uint8_t BuildAndSendUeCtxtRsp(uint8_t cellId, uint8_t ueIdx)
+{
+   uint8_t cellIdx = 0, actionType = 0; 
+
+   GET_CELL_IDX(cellId, cellIdx);
+   actionType = duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].f1UeDb->actionType;
+
+   switch(actionType)
    {
-      /*TODO : Negative case*/
-      // BuildAndSendUeContextSetupRsp(ueIdx, cellId);
-      DU_LOG("\nERROR  -->  F1AP: Failed to process UE CNTXT SETUP REQ at procF1UeContextSetupReq()"); 
-   }
-   else
-      ret = duProcUeContextSetupRequest(duUeCb);
-   
-   freeAperDecodeF1UeContextSetupReq(ueSetReq); 
-   return ret;
+      case UE_CTXT_SETUP:
+         {
+            BuildAndSendUeContextSetupRsp(cellId,ueIdx);
+            break;
+         }
+      case UE_CTXT_MOD:
+         {
+            BuildAndSendUeContextModRsp(cellId, ueIdx);
+            break;
+         }
+      default:
+         DU_LOG("ERROR  -->  F1AP: Invalid Action Type %d at BuildAndSendUeCtxtRsp()", actionType);
+         break;
 
+   }
+   return ROK;
 }
 
 /*******************************************************************
- * @brief Free the memory allocated for UE Setup response
+ *
+ * @brief deallocating the memory of  F1reset msg
  *
  * @details
  *
- *    Function : FreeUeContextSetupRsp
+ *    Function : FreeF1ResetReq
  *
- *    Functionality:
- *       Free the memory allocated for UE Setup response
+ *    Functionality :
+ *         - freeing memory of F1reset request msg
+ *
+ * @params[in]
+ * @return void
  *
- * @params[in] F1AP PDU for UE setup response
- * @return ROK     - success
- *         RFAILED - failure
  *
  * ****************************************************************/
-void FreeUeContextSetupRsp(F1AP_PDU_t *f1apMsg)
+void FreeF1ResetReq(F1AP_PDU_t *f1apMsg)
 {
-   uint8_t idx;
-   UEContextSetupResponse_t *ueSetRsp = NULLP;
+   uint8_t idx =0 ;
+   Reset_t *f1ResetMsg;
 
    if(f1apMsg)
    {
-      if(f1apMsg->choice.successfulOutcome)
+      if(f1apMsg->choice.initiatingMessage)
       {
-        ueSetRsp = &f1apMsg->choice.successfulOutcome->value.choice.\
-                   UEContextSetupResponse;
-        if(ueSetRsp->protocolIEs.list.array)
+        f1ResetMsg = &f1apMsg->choice.initiatingMessage->value.choice.Reset;
+
+        if(f1ResetMsg->protocolIEs.list.array)
         {
-           for(idx = 0; idx < ueSetRsp->protocolIEs.list.count; idx++)
+           for(idx=0 ;idx < f1ResetMsg->protocolIEs.list.count ; idx++)
            {
-              if(ueSetRsp->protocolIEs.list.array[idx])
+              if(f1ResetMsg->protocolIEs.list.array[idx])
               {
-                 switch(ueSetRsp->protocolIEs.list.array[idx]->id)
-                 {
-                    case ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID:
-                       break;
-                    case ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID:
-                       break;
-                    case ProtocolIE_ID_id_DUtoCURRCInformation:
-                       {
-                          CellGroupConfig_t *cellGrpCfg = NULLP;
-                          cellGrpCfg  = &ueSetRsp->protocolIEs.list.array[idx]->value.choice.\
-                                        DUtoCURRCInformation.cellGroupConfig;
-                          if(cellGrpCfg->buf != NULLP)
-                          {
-                             DU_FREE(cellGrpCfg->buf, cellGrpCfg->size);
-                             cellGrpCfg = NULLP;
-                          }
-                          break;
-                       }
-                    default:
-                       DU_LOG("\nERROR  -->  DUAPP: Invalid Id %ld at FreeUeContextSetupRsp()",\
-                       ueSetRsp->protocolIEs.list.array[idx]->id);
-                       break;
-                 }
-                 DU_FREE(ueSetRsp->protocolIEs.list.array[idx],\
-                       sizeof(UEContextSetupResponseIEs_t));
+                 DU_FREE(f1ResetMsg->protocolIEs.list.array[idx],sizeof(ResetIEs_t));
               }
            }
-           DU_FREE(ueSetRsp->protocolIEs.list.array, \
-                 ueSetRsp->protocolIEs.list.size);
+           DU_FREE(f1ResetMsg->protocolIEs.list.array,f1ResetMsg->protocolIEs.list.size);
         }
-        DU_FREE(f1apMsg->choice.successfulOutcome, sizeof(SuccessfulOutcome_t));
+        DU_FREE(f1apMsg->choice.initiatingMessage, sizeof(InitiatingMessage_t));
       }
       DU_FREE(f1apMsg, sizeof(F1AP_PDU_t));
    }
 }
-
 /*******************************************************************
  *
- * @brief Builds Ue context Setup Rsp DU To CU Info
+ * @brief Build and Send F1reset request 
  *
  * @details
  *
- *    Function : EncodeUeCntxtDuToCuInfo
- *
- *    Functionality: Builds Ue context Setup Rsp DU To CU Info
+ *    Function : BuildAndSendF1ResetReq
  *
- * @params[in] CellGroupConfig_t *, CellGroupConfigRrc_t * 
+ *    Functionality:
+ *         - Build and Send F1reset request msg
  *
+ * @params[in]
  * @return ROK     - success
  *         RFAILED - failure
  *
- ******************************************************************/
+ * ****************************************************************/
+uint8_t BuildAndSendF1ResetReq()
+{
+   uint8_t          elementCnt=0;
+   uint8_t          idx=0;
+   uint8_t          ret= RFAILED;
+   Reset_t          *f1ResetMsg = NULLP;
+   F1AP_PDU_t       *f1apMsg = NULLP;
+   asn_enc_rval_t   encRetVal;
+   DU_LOG("\nINFO   -->  F1AP : Building F1 Reset request \n");
+   do
+   {
+      DU_ALLOC(f1apMsg, sizeof(F1AP_PDU_t));
+      if(f1apMsg == NULLP)
+      {
+        break;
+      }
+      f1apMsg->present = F1AP_PDU_PR_initiatingMessage;
+      DU_ALLOC(f1apMsg->choice.initiatingMessage, sizeof(InitiatingMessage_t));
+      if(f1apMsg->choice.initiatingMessage == NULLP)
+      {
+        break;
+      }
+      f1apMsg->choice.initiatingMessage->procedureCode = ProcedureCode_id_Reset;
+      f1apMsg->choice.initiatingMessage->criticality = Criticality_reject;
+      f1apMsg->choice.initiatingMessage->value.present = InitiatingMessage__value_PR_Reset;
 
-uint8_t EncodeUeCntxtDuToCuInfo(CellGroupConfig_t *duToCuCellGrp, CellGroupConfigRrc_t *duCellGrpCfg)
+      f1ResetMsg = &f1apMsg->choice.initiatingMessage->value.choice.Reset;
+
+      elementCnt = 3;
+      f1ResetMsg->protocolIEs.list.count = elementCnt;
+      f1ResetMsg->protocolIEs.list.size = elementCnt * sizeof(ResetIEs_t *);
+
+      /* Initialize the F1Setup members */
+      DU_ALLOC(f1ResetMsg->protocolIEs.list.array,f1ResetMsg->protocolIEs.list.size);
+      if(f1ResetMsg->protocolIEs.list.array == NULLP)
+      {
+        break;
+      }
+      for(idx=0; idx<elementCnt; idx++)
+      {
+        DU_ALLOC(f1ResetMsg->protocolIEs.list.array[idx],sizeof(ResetIEs_t));
+        if(f1ResetMsg->protocolIEs.list.array[idx] == NULLP)
+        {
+           break;
+        }
+      }
+
+      /*TransactionID*/
+      idx=0;
+      f1ResetMsg->protocolIEs.list.array[idx]->id = ProtocolIE_ID_id_TransactionID;
+      f1ResetMsg->protocolIEs.list.array[idx]->criticality = Criticality_reject;
+      f1ResetMsg->protocolIEs.list.array[idx]->value.present = ResetIEs__value_PR_TransactionID;
+      f1ResetMsg->protocolIEs.list.array[idx]->value.choice.TransactionID = 1;
+
+      /*Cause*/
+      idx++;
+      f1ResetMsg->protocolIEs.list.array[idx]->id = ProtocolIE_ID_id_Cause;
+      f1ResetMsg->protocolIEs.list.array[idx]->criticality = Criticality_ignore;
+      f1ResetMsg->protocolIEs.list.array[idx]->value.present = ResetIEs__value_PR_Cause;
+      f1ResetMsg->protocolIEs.list.array[idx]->value.choice.Cause.present = Cause_PR_radioNetwork;
+      f1ResetMsg->protocolIEs.list.array[idx]->value.choice.Cause.choice.radioNetwork = CauseRadioNetwork_action_desirable_for_radio_reasons;
+
+      /*Reset Type*/
+      idx++;
+      f1ResetMsg->protocolIEs.list.array[idx]->id = ProtocolIE_ID_id_ResetType;
+      f1ResetMsg->protocolIEs.list.array[idx]->criticality = Criticality_reject;
+      f1ResetMsg->protocolIEs.list.array[idx]->value.present = ResetIEs__value_PR_ResetType;
+      f1ResetMsg->protocolIEs.list.array[idx]->value.choice.ResetType.present = ResetType_PR_f1_Interface;
+      f1ResetMsg->protocolIEs.list.array[idx]->value.choice.ResetType.choice.f1_Interface = ResetAll_reset_all;
+
+      xer_fprint(stdout, &asn_DEF_F1AP_PDU, f1apMsg);
+
+      /* Encode the F1SetupRequest type as APER */
+      memset(encBuf, 0, ENC_BUF_MAX_LEN);
+      encBufSize = 0;
+      encRetVal = aper_encode(&asn_DEF_F1AP_PDU, 0, f1apMsg, PrepFinalEncBuf,\
+           encBuf);
+
+      /* Encode results */
+      if(encRetVal.encoded == ENCODE_FAIL)
+      {
+        DU_LOG("\nERROR  -->  F1AP : Could not encode F1Reset structure (at %s)\n",\
+              encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
+        break;
+      }
+      else
+      {
+        DU_LOG("\nDEBUG   -->  F1AP : Created APER encoded buffer for F1Reset\n");
+        for(idx=0; idx< encBufSize; idx++)
+        {
+           printf("%x",encBuf[idx]);
+        }
+      }
+
+      if(sendF1APMsg() != ROK)
+      {
+        DU_LOG("\nERROR  -->  F1AP : Sending F1 Reset request failed");
+        break;
+      }
+
+      ret = ROK;
+      break;
+   }while(true);
+
+   FreeF1ResetReq(f1apMsg);
+   return ret;
+}
+/*******************************************************************
+ *
+ * @brief Build And Send F1ResetAck
+ *
+ * @details
+ *
+ *    Function : BuildAndSendF1ResetAck
+ *
+ *    Functionality:
+ *         - Build And Send  F1ResetRSP
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+void FreeF1ResetAck(F1AP_PDU_t *f1apMsg)
 {
-   asn_enc_rval_t        encRetVal;
+   uint8_t idx;
+   ResetAcknowledge_t *f1ResetAck;
 
-   xer_fprint(stdout, &asn_DEF_CellGroupConfigRrc, duCellGrpCfg);
-   memset((uint8_t *)encBuf, 0, ENC_BUF_MAX_LEN);
-   encBufSize = 0;
-   encRetVal = aper_encode(&asn_DEF_CellGroupConfigRrc, 0, duCellGrpCfg, PrepFinalEncBuf, encBuf);
-   /* Encode results */
-   if(encRetVal.encoded == ENCODE_FAIL)
-   {
-      DU_LOG( "\nERROR  -->  F1AP : Could not encode UeCntxtDuToCuInfo (at %s)\n",\
-           encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
-      return RFAILED;
-   }
-   else
+   if(f1apMsg)
    {
-      DU_LOG("\nDEBUG   -->  F1AP : Created APER encoded buffer for UeCntxtDuToCuInfo\n");
-      for(int i=0; i< encBufSize; i++)
+      if(f1apMsg->choice.successfulOutcome)
       {
-        printf("%x",encBuf[i]);
+        f1ResetAck= &f1apMsg->choice.successfulOutcome->value.choice.ResetAcknowledge;
+
+        if(f1ResetAck->protocolIEs.list.array)
+        {
+           for(idx=0; idx<f1ResetAck->protocolIEs.list.count ; idx++)
+           {
+              if(f1ResetAck->protocolIEs.list.array[idx])
+              {
+                 DU_FREE(f1ResetAck->protocolIEs.list.array[idx], sizeof(ResetAcknowledgeIEs_t));
+              }
+           }
+           DU_FREE(f1ResetAck->protocolIEs.list.array, f1ResetAck->protocolIEs.list.size );
+        }
+        DU_FREE(f1apMsg->choice.successfulOutcome, sizeof(SuccessfulOutcome_t));
       }
+      DU_FREE(f1apMsg, sizeof(F1AP_PDU_t));
    }
-   duToCuCellGrp->size = encBufSize;
-   DU_ALLOC(duToCuCellGrp->buf, duToCuCellGrp->size);
-   if(!duToCuCellGrp->buf)
-   {
-      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in UeCntxtDuToCuInfo");
-   }
-   memcpy(duToCuCellGrp->buf, encBuf, duToCuCellGrp->size);
-   return ROK;
 }
 
 /*******************************************************************
  *
- * @brief Builds and sends the UE Setup Response
+ * @brief Build And Send F1ResetAck
  *
  * @details
  *
- *    Function : BuildAndSendUeContextSetupRsp
- *
- *    Functionality: Constructs the UE Setup Response and sends
- *                   it to the DU through SCTP.
+ *    Function : BuildAndSendF1ResetAck
  *
- * @params[in] 
+ *    Functionality:
+ *         - Build And Send  F1ResetRSP
  *
+ *  @params[in]
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint8_t BuildAndSendUeContextSetupRsp(uint8_t ueIdx, uint8_t cellId)
+uint8_t BuildAndSendF1ResetAck()
 {
-   uint8_t   idx, ret, cellIdx, elementCnt;
-   uint32_t  gnbCuUeF1apId;   /* gNB-CU UE F1AP Id */
-   uint32_t  gnbDuUeF1apId;   /* gNB-DU UE F1AP Id */
-   asn_enc_rval_t  encRetVal;        /* Encoder return value */
-   F1AP_PDU_t               *f1apMsg = NULLP;
-   UEContextSetupResponse_t *ueSetRsp = NULLP;
-   CellGroupConfigRrc_t     *cellGrpCfg = NULLP;
-   DuUeCb                   *ueCb = NULLP;
-
-   DU_LOG("\n INFO   -->  F1AP : Building UE Context Setup Response for cellId %d, ueIdx %d\n", cellId, ueIdx);
+   uint8_t                idx = 0;
+   uint8_t                elementCnt = 0;
+   uint8_t                ret = RFAILED;
+   F1AP_PDU_t             *f1apMsg = NULL;
+   ResetAcknowledge_t     *f1ResetAck = NULLP;
+   asn_enc_rval_t         encRetVal;
+   DU_LOG("\nINFO   -->  F1AP : Building F1 Reset Acknowledgment \n");
 
-   while(true)
-   {
+   do{
+      /* Allocate the memory for F1ResetRequest_t */
       DU_ALLOC(f1apMsg, sizeof(F1AP_PDU_t));
       if(f1apMsg == NULLP)
       {
-        DU_LOG(" ERROR  -->  F1AP : Memory allocation for F1AP-PDU failed");
-        ret = RFAILED;
+        DU_LOG("\nERROR  -->  F1AP : Memory allocation for F1AP-PDU failed");
         break;
       }
 
-      f1apMsg->present = F1AP_PDU_PR_successfulOutcome;
-      DU_ALLOC(f1apMsg->choice.successfulOutcome,
-           sizeof(SuccessfulOutcome_t));
+      f1apMsg->present =  F1AP_PDU_PR_successfulOutcome;
+
+      DU_ALLOC(f1apMsg->choice.successfulOutcome, sizeof(SuccessfulOutcome_t));
       if(f1apMsg->choice.successfulOutcome == NULLP)
       {
-        DU_LOG(" ERROR  -->  F1AP : Memory allocation for      F1AP-PDU failed");
-        ret = RFAILED;
+        DU_LOG("\nERROR  -->  F1AP : Memory allocation for F1AP-PDU failed");
         break;
       }
+      f1apMsg->choice.successfulOutcome->criticality   = Criticality_reject;
+      f1apMsg->choice.successfulOutcome->value.present = SuccessfulOutcome__value_PR_ResetAcknowledge;
+      f1ResetAck = &f1apMsg->choice.successfulOutcome->value.choice.ResetAcknowledge;
 
-      f1apMsg->choice.successfulOutcome->procedureCode = \
-                                                        ProcedureCode_id_UEContextSetup;
-      f1apMsg->choice.successfulOutcome->criticality = Criticality_reject;
-      f1apMsg->choice.successfulOutcome->value.present = \
-                                                        SuccessfulOutcome__value_PR_UEContextSetupResponse;
+      elementCnt = 1;
 
-      ueSetRsp =
-        &f1apMsg->choice.successfulOutcome->value.choice.UEContextSetupResponse;
-      elementCnt = 3;
-      ueSetRsp->protocolIEs.list.count = elementCnt;
-      ueSetRsp->protocolIEs.list.size = \
-                                       elementCnt * sizeof(UEContextSetupResponse_t *);
+      f1ResetAck->protocolIEs.list.count = elementCnt;
+      f1ResetAck->protocolIEs.list.size = elementCnt*sizeof(ResetAcknowledgeIEs_t *);
 
-      /* Initialize the UESetup members */
-      DU_ALLOC(ueSetRsp->protocolIEs.list.array, \
-           ueSetRsp->protocolIEs.list.size);
-      if(ueSetRsp->protocolIEs.list.array == NULLP)
+      DU_ALLOC(f1ResetAck->protocolIEs.list.array, f1ResetAck->protocolIEs.list.size );
+      if(f1ResetAck->protocolIEs.list.array == NULLP)
       {
-        DU_LOG(" ERROR  -->  F1AP : Memory allocation for UE Setup Response failed");
-        ret = RFAILED;
+        DU_LOG("\nERROR  -->  F1AP : Memory allocation for F1ResetAckIEs failed");
         break;
       }
 
       for(idx=0; idx<elementCnt; idx++)
       {
-        DU_ALLOC(ueSetRsp->protocolIEs.list.array[idx],\
-              sizeof(UEContextSetupResponseIEs_t));
-        if(ueSetRsp->protocolIEs.list.array[idx] == NULLP)
+        DU_ALLOC(f1ResetAck->protocolIEs.list.array[idx], sizeof(ResetAcknowledgeIEs_t));
+        if(f1ResetAck->protocolIEs.list.array[idx] == NULLP)
         {
-           DU_LOG(" ERROR  -->  F1AP : Memory allocation for UE Setup Response failed");
-           ret = RFAILED;
            break;
         }
       }
-      /* Fetching Ue Cb Info*/
-      GET_CELL_IDX(cellId, cellIdx);
-      gnbDuUeF1apId = duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].gnbDuUeF1apId;
-      gnbCuUeF1apId = duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].gnbCuUeF1apId;
-      ueCb = &duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1];
-
+      /*TransactionID*/
       idx = 0;
-      /*GNB CU UE F1AP ID*/
-      ueSetRsp->protocolIEs.list.array[idx]->id        = \
-                                                 ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID;
-      ueSetRsp->protocolIEs.list.array[idx]->criticality = Criticality_reject;
-      ueSetRsp->protocolIEs.list.array[idx]->value.present = \
-                                                            UEContextSetupResponseIEs__value_PR_GNB_CU_UE_F1AP_ID;
-      ueSetRsp->protocolIEs.list.array[idx]->value.choice.GNB_CU_UE_F1AP_ID = gnbCuUeF1apId;
-
-      /*GNB DU UE F1AP ID*/
-      idx++;
-      ueSetRsp->protocolIEs.list.array[idx]->id        = \
-                                                 ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID;
-      ueSetRsp->protocolIEs.list.array[idx]->criticality = Criticality_reject;
-      ueSetRsp->protocolIEs.list.array[idx]->value.present = \
-                                                            UEContextSetupResponseIEs__value_PR_GNB_DU_UE_F1AP_ID;
-      ueSetRsp->protocolIEs.list.array[idx]->value.choice.GNB_DU_UE_F1AP_ID = gnbDuUeF1apId;
-
-
-      /*DUtoCURRC Information */
-      idx++;
-      ueSetRsp->protocolIEs.list.array[idx]->id  = \
-                                                  ProtocolIE_ID_id_DUtoCURRCInformation;
-      ueSetRsp->protocolIEs.list.array[idx]->criticality = Criticality_reject;
-      ueSetRsp->protocolIEs.list.array[idx]->value.present =\
-                                                           UEContextSetupResponseIEs__value_PR_DUtoCURRCInformation;
-      if(ueCb->f1UeDb)
-      {
-         if(ueCb->f1UeDb->duUeCfg.cellGrpCfg)
-        {
-           cellGrpCfg = (CellGroupConfigRrc_t*)ueCb->f1UeDb->duUeCfg.cellGrpCfg;
-           ret = EncodeUeCntxtDuToCuInfo(&ueSetRsp->protocolIEs.list.array[idx]->value.\
-                    choice.DUtoCURRCInformation.cellGroupConfig, cellGrpCfg);
-           /* Free UeContext Db created during Ue context Req */
-           freeF1UeDb(ueCb->f1UeDb);
-           ueCb->f1UeDb = NULLP;
-         }
-      }
-      else
-      {
-         DU_LOG("\nERROR  -->  F1AP: Failed to form DUtoCU RRCInfo at BuildAndSendUeContextSetupRsp()");
-         ret = RFAILED;
-      }
-      if(ret == RFAILED)
-         break;
+      f1ResetAck->protocolIEs.list.array[idx]->id = ProtocolIE_ID_id_TransactionID;
+      f1ResetAck->protocolIEs.list.array[idx]->criticality = Criticality_reject;
+      f1ResetAck->protocolIEs.list.array[idx]->value.present = ResetAcknowledgeIEs__value_PR_TransactionID;
+      f1ResetAck->protocolIEs.list.array[idx]->value.choice.TransactionID = TRANS_ID;
 
       xer_fprint(stdout, &asn_DEF_F1AP_PDU, f1apMsg);
 
-      /* Encode the UE context setup response type as APER */
-      memset((uint8_t *)encBuf, 0, ENC_BUF_MAX_LEN);
+      /* Encode the F1SetupRequest type as UPER */
+      memset(encBuf, 0, ENC_BUF_MAX_LEN);
       encBufSize = 0;
-      encRetVal = aper_encode(&asn_DEF_F1AP_PDU, 0, f1apMsg, PrepFinalEncBuf,\
-           encBuf);
-      /* Encode results */
+      encRetVal = aper_encode(&asn_DEF_F1AP_PDU, 0, f1apMsg, PrepFinalEncBuf, encBuf);
+
+      /* Check encode results */
       if(encRetVal.encoded == ENCODE_FAIL)
       {
-        DU_LOG( "\nERROR  -->  F1AP : Could not encode UE Context Setup Request structure (at %s)\n",\
+        DU_LOG("\nERROR  -->  F1AP : Could not encode F1ResetAck structure (at %s)\n",\
               encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
-        ret = RFAILED;
         break;
       }
       else
       {
-        DU_LOG("\nDEBUG   -->  F1AP : Created APER encoded buffer for UE Context Setup Request\n");
+        DU_LOG("\nDUBUG   -->  F1AP : Created APER encoded buffer for F1ResetAck\n");
         for(int i=0; i< encBufSize; i++)
         {
            printf("%x",encBuf[i]);
         }
       }
-
-      /* Sending  msg  */
-      if(SendF1APMsg(DU_APP_MEM_REGION,DU_POOL)        != ROK)
+      /* Sending msg */
+      if(sendF1APMsg() != ROK)
       {
-        DU_LOG("\nERROR  -->  F1AP : Sending UE Context Setup Request Failed");
-        ret = RFAILED;
+        DU_LOG("\nERROR  -->  F1AP : Sending F1 Reset Acknowledgement failed");
         break;
       }
+
+      ret = ROK;
       break;
-   }
-   FreeUeContextSetupRsp(f1apMsg);
+   }while(true);
+
+   FreeF1ResetAck(f1apMsg);
    return ret;
-}/* End of BuildAndSendUeContextSetupRsp */
-/*******************************************************************
+}
+/******************************************************************
 *
-* @brief  Build And Send Ue Context Rsp 
+* @brief free F1 reset msg allocated by aper_decoder 
 *
 * @details
 *
-*    Function : BuildAndSendUeCtxtRsp 
+*    Function : freeAperDecodeF1ResetMsg 
 *
-*    Functionality : Build And Send Ue Context Rsp
-
-* @params[in]
-* @return sucess = ROK
-*         failure = RFAILED
+*    Functionality: free F1 reset msg allocated by aper_decoder 
+*
+* @params[in] Reset_t *f1ResetMsg 
+* @return void 
 *
 * ****************************************************************/
-uint8_t BuildAndSendUeCtxtRsp(uint8_t ueIdx, uint8_t cellId)
+
+void freeAperDecodeF1ResetMsg(Reset_t *f1ResetMsg)
 {
-   uint8_t cellIdx = 0, actionType = 0; 
+   uint8_t ieIdx =0;
+   if(f1ResetMsg->protocolIEs.list.array)
+   {
+      for(ieIdx=0 ;ieIdx < f1ResetMsg->protocolIEs.list.count ; ieIdx++)
+      {
+        if(f1ResetMsg->protocolIEs.list.array[ieIdx])
+        {
+           free(f1ResetMsg->protocolIEs.list.array[ieIdx]);
+        }
+      }
+      free(f1ResetMsg->protocolIEs.list.array);
+   }
+}
 
-   GET_CELL_IDX(cellId, cellIdx);
-   actionType = duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].f1UeDb->actionType;
+/******************************************************************
+ *
+ * @brief Processes DL RRC Message Transfer  sent by CU
+ *
+ * @details
+ *
+ *    Function : procF1ResetReq
+ *
+ *    Functionality: Processes DL RRC Message Transfer sent by CU
+ *
+ * @params[in] F1AP_PDU_t ASN decoded F1AP message
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t procF1ResetReq(F1AP_PDU_t *f1apMsg)
+{
+   /* we are currently not supporting Ue release. right now we are supporting only init case of fireset */
+   uint8_t       ieIdx = 0;
+   uint8_t        ret = ROK;
+   Reset_t       *f1ResetMsg = NULLP;
 
-   switch(actionType)
+   DU_LOG("\nINFO   -->  Processing F1 reset request");
+   f1ResetMsg = &f1apMsg->choice.initiatingMessage->value.choice.Reset;
+
+   for(ieIdx=0; ieIdx<f1ResetMsg->protocolIEs.list.count; ieIdx++)
    {
-      case UE_CTXT_SETUP:
-         BuildAndSendUeContextSetupRsp(ueIdx, cellId);
-         break;
-      case UE_CTXT_MOD:
-         //TODO: Build Ue context Modification Rsp
-         break;
-      default:
-         DU_LOG("ERROR  -->  F1AP: Invalid Action Type %d at BuildAndSendUeCtxtRsp()", actionType);
-         break;
+      switch(f1ResetMsg->protocolIEs.list.array[ieIdx]->id)
+      {
+        case ProtocolIE_ID_id_TransactionID:
+           break;
+
+        case ProtocolIE_ID_id_Cause:
+           break;
+
+        case ProtocolIE_ID_id_ResetType:
+           {
+              break;
+           }
 
+        default:
+           break;
+      }
    }
-   return ROK;
+   ret = BuildAndSendF1ResetAck();
+   DU_LOG("\nINFO   -->  UE release is not supported for now");
+
+   freeAperDecodeF1ResetMsg(f1ResetMsg);
+
+   return ret;
 }
 
 /*******************************************************************
  *
- * @brief deallocating the memory of  F1reset msg
+ * @brief free the RRC delivery report
  *
  * @details
  *
- *    Function : FreeF1ResetReq
+ *    Function : freeRrcDeliveryReport
  *
- *    Functionality :
- *         - freeing memory of F1reset request msg
+ *    Functionality: free the RRC delivery report
  *
  * @params[in]
- * @return void
- *
+ * @return ROK     - success
+ *         RFAILED - failure
  *
  * ****************************************************************/
-void FreeF1ResetReq(F1AP_PDU_t *f1apMsg)
+void freeRrcDeliveryReport(F1AP_PDU_t  *f1apMsg )
 {
-   uint8_t idx =0 ;
-   Reset_t *f1ResetMsg;
+   uint8_t idx=0;
+   RRCDeliveryReport_t *rrcDeliveryReport= NULLP;
 
    if(f1apMsg)
    {
       if(f1apMsg->choice.initiatingMessage)
       {
-        f1ResetMsg = &f1apMsg->choice.initiatingMessage->value.choice.Reset;
-
-        if(f1ResetMsg->protocolIEs.list.array)
+        rrcDeliveryReport = &f1apMsg->choice.initiatingMessage->value.choice.RRCDeliveryReport;
+        if(rrcDeliveryReport->protocolIEs.list.array)
         {
-           for(idx=0 ;idx < f1ResetMsg->protocolIEs.list.count ; idx++)
+           for(idx =0 ;idx <rrcDeliveryReport->protocolIEs.list.count ;
+                 idx++)
            {
-              if(f1ResetMsg->protocolIEs.list.array[idx])
+              if(rrcDeliveryReport->protocolIEs.list.array[idx])
               {
-                 DU_FREE(f1ResetMsg->protocolIEs.list.array[idx],sizeof(ResetIEs_t));
-              }
+                 DU_FREE(rrcDeliveryReport->protocolIEs.list.array[idx],
+                       sizeof(RRCDeliveryReportIEs_t));
+              }   
            }
-           DU_FREE(f1ResetMsg->protocolIEs.list.array,f1ResetMsg->protocolIEs.list.size);
+           DU_FREE(rrcDeliveryReport->protocolIEs.list.array,
+                 rrcDeliveryReport->protocolIEs.list.size);
         }
-        DU_FREE(f1apMsg->choice.initiatingMessage, sizeof(InitiatingMessage_t));
+        DU_FREE(f1apMsg->choice.initiatingMessage,sizeof(InitiatingMessage_t));
       }
-      DU_FREE(f1apMsg, sizeof(F1AP_PDU_t));
+      DU_FREE(f1apMsg,
+           sizeof(F1AP_PDU_t));
    }
 }
+
 /*******************************************************************
- *
- * @brief Build and Send F1reset request 
- *
- * @details
- *
- *    Function : BuildAndSendF1ResetReq
- *
- *    Functionality:
- *         - Build and Send F1reset request msg
- *
- * @params[in]
- * @return ROK     - success
- *         RFAILED - failure
- *
- * ****************************************************************/
-uint8_t BuildAndSendF1ResetReq()
+*
+* @brief Builds and sends the RRC delivery report
+*
+* @details
+*
+*    Function : BuildAndSendRrcDeliveryReport
+*
+*    Functionality: Builds and sends the RRC delivery report
+*
+* @params[in]
+*
+* @return ROK     - success
+*         RFAILED - failure
+*
+* ****************************************************************/
+uint8_t BuildAndSendRrcDeliveryReport(uint32_t gnbCuUeF1apId, \
+   uint32_t gnbDuUeF1apId, RrcDeliveryReport *rrcDelivery)
 {
-   uint8_t          elementCnt=0;
-   uint8_t          idx=0;
-   uint8_t          ret= RFAILED;
-   Reset_t          *f1ResetMsg = NULLP;
-   F1AP_PDU_t       *f1apMsg = NULLP;
-   asn_enc_rval_t   encRetVal;
-   DU_LOG("\nINFO   -->  F1AP : Building F1 Reset request \n");
-   do
-   {
+   uint8_t             ret = RFAILED;
+   uint8_t             idx    = 0;
+   uint8_t             idx1   = 0;
+   uint8_t             elementCnt = 0;
+   F1AP_PDU_t          *f1apMsg = NULLP;
+   asn_enc_rval_t      encRetVal;  
+   RRCDeliveryReport_t *rrcDeliveryReport= NULLP;
+
+   do{
+
+      DU_LOG("\nINFO   -->  F1AP : Building RRC delivery Message Transfer Message\n");
       DU_ALLOC(f1apMsg, sizeof(F1AP_PDU_t));
       if(f1apMsg == NULLP)
       {
+        DU_LOG(" ERROR  -->  F1AP : Memory allocation for F1AP-PDU failed");
         break;
       }
       f1apMsg->present = F1AP_PDU_PR_initiatingMessage;
-      DU_ALLOC(f1apMsg->choice.initiatingMessage, sizeof(InitiatingMessage_t));
+      DU_ALLOC(f1apMsg->choice.initiatingMessage,sizeof(InitiatingMessage_t));
       if(f1apMsg->choice.initiatingMessage == NULLP)
       {
+        DU_LOG(" ERROR  -->  F1AP : Memory allocation for  F1AP-PDU  failed");
         break;
       }
-      f1apMsg->choice.initiatingMessage->procedureCode = ProcedureCode_id_Reset;
-      f1apMsg->choice.initiatingMessage->criticality = Criticality_reject;
-      f1apMsg->choice.initiatingMessage->value.present = InitiatingMessage__value_PR_Reset;
-
-      f1ResetMsg = &f1apMsg->choice.initiatingMessage->value.choice.Reset;
+      f1apMsg->choice.initiatingMessage->procedureCode = ProcedureCode_id_RRCDeliveryReport;
+      f1apMsg->choice.initiatingMessage->criticality   = Criticality_ignore;
+      f1apMsg->choice.initiatingMessage->value.present = InitiatingMessage__value_PR_RRCDeliveryReport;
 
-      elementCnt = 3;
-      f1ResetMsg->protocolIEs.list.count = elementCnt;
-      f1ResetMsg->protocolIEs.list.size = elementCnt * sizeof(ResetIEs_t *);
+      rrcDeliveryReport = &f1apMsg->choice.initiatingMessage->value.choice.RRCDeliveryReport;
+      elementCnt = 4;
+      rrcDeliveryReport->protocolIEs.list.count = elementCnt;
+      rrcDeliveryReport->protocolIEs.list.size = elementCnt * sizeof(RRCDeliveryReportIEs_t *);
 
       /* Initialize the F1Setup members */
-      DU_ALLOC(f1ResetMsg->protocolIEs.list.array,f1ResetMsg->protocolIEs.list.size);
-      if(f1ResetMsg->protocolIEs.list.array == NULLP)
+      DU_ALLOC(rrcDeliveryReport->protocolIEs.list.array, rrcDeliveryReport->protocolIEs.list.size);
+      if(rrcDeliveryReport->protocolIEs.list.array == NULLP)
       {
+        DU_LOG(" ERROR  -->  F1AP : Memory allocation for RRC Delivery  failed");
         break;
       }
-      for(idx=0; idx<elementCnt; idx++)
+      for(idx =0 ;idx <elementCnt; idx++)
       {
-        DU_ALLOC(f1ResetMsg->protocolIEs.list.array[idx],sizeof(ResetIEs_t));
-        if(f1ResetMsg->protocolIEs.list.array[idx] == NULLP)
+        DU_ALLOC(rrcDeliveryReport->protocolIEs.list.array[idx], sizeof(RRCDeliveryReportIEs_t));
+        if(rrcDeliveryReport->protocolIEs.list.array[idx] == NULLP)
         {
            break;
         }
       }
 
-      /*TransactionID*/
-      idx=0;
-      f1ResetMsg->protocolIEs.list.array[idx]->id = ProtocolIE_ID_id_TransactionID;
-      f1ResetMsg->protocolIEs.list.array[idx]->criticality = Criticality_reject;
-      f1ResetMsg->protocolIEs.list.array[idx]->value.present = ResetIEs__value_PR_TransactionID;
-      f1ResetMsg->protocolIEs.list.array[idx]->value.choice.TransactionID = 1;
+      idx1 = 0;
 
-      /*Cause*/
-      idx++;
-      f1ResetMsg->protocolIEs.list.array[idx]->id = ProtocolIE_ID_id_Cause;
-      f1ResetMsg->protocolIEs.list.array[idx]->criticality = Criticality_ignore;
-      f1ResetMsg->protocolIEs.list.array[idx]->value.present = ResetIEs__value_PR_Cause;
-      f1ResetMsg->protocolIEs.list.array[idx]->value.choice.Cause.present = Cause_PR_radioNetwork;
-      f1ResetMsg->protocolIEs.list.array[idx]->value.choice.Cause.choice.radioNetwork = CauseRadioNetwork_action_desirable_for_radio_reasons;
+      /*GNB CU UE F1AP ID*/
+      rrcDeliveryReport->protocolIEs.list.array[idx1]->id = ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID;
+      rrcDeliveryReport->protocolIEs.list.array[idx1]->criticality = Criticality_reject;
+      rrcDeliveryReport->protocolIEs.list.array[idx1]->value.present = RRCDeliveryReportIEs__value_PR_GNB_CU_UE_F1AP_ID;
+      rrcDeliveryReport->protocolIEs.list.array[idx1]->value.choice.GNB_CU_UE_F1AP_ID = gnbCuUeF1apId;
 
-      /*Reset Type*/
-      idx++;
-      f1ResetMsg->protocolIEs.list.array[idx]->id = ProtocolIE_ID_id_ResetType;
-      f1ResetMsg->protocolIEs.list.array[idx]->criticality = Criticality_reject;
-      f1ResetMsg->protocolIEs.list.array[idx]->value.present = ResetIEs__value_PR_ResetType;
-      f1ResetMsg->protocolIEs.list.array[idx]->value.choice.ResetType.present = ResetType_PR_f1_Interface;
-      f1ResetMsg->protocolIEs.list.array[idx]->value.choice.ResetType.choice.f1_Interface = ResetAll_reset_all;
+      /*GNB DU UE F1AP ID*/
+      idx1++;
+      rrcDeliveryReport->protocolIEs.list.array[idx1]->id = ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID;
+      rrcDeliveryReport->protocolIEs.list.array[idx1]->criticality = Criticality_reject;
+      rrcDeliveryReport->protocolIEs.list.array[idx1]->value.present = RRCDeliveryReportIEs__value_PR_GNB_DU_UE_F1AP_ID;
+      rrcDeliveryReport->protocolIEs.list.array[idx1]->value.choice.GNB_DU_UE_F1AP_ID = gnbDuUeF1apId;
+
+      /*RRC delivery status*/
+      idx1++;
+      rrcDeliveryReport->protocolIEs.list.array[idx1]->id = ProtocolIE_ID_id_RRCDeliveryStatus;
+      rrcDeliveryReport->protocolIEs.list.array[idx1]->criticality = Criticality_ignore;
+      rrcDeliveryReport->protocolIEs.list.array[idx1]->value.present = RRCDeliveryReportIEs__value_PR_RRCDeliveryStatus;
+      rrcDeliveryReport->protocolIEs.list.array[idx1]->value.choice.RRCDeliveryStatus.delivery_status =\
+      rrcDelivery->rrcDeliveryStatus.deliveryStatus;
+      rrcDeliveryReport->protocolIEs.list.array[idx1]->value.choice.RRCDeliveryStatus.triggering_message =\
+      rrcDelivery->rrcDeliveryStatus.triggeringMessage;
+
+      /* SRB ID */ 
+      idx1++;
+      rrcDeliveryReport->protocolIEs.list.array[idx1]->id = ProtocolIE_ID_id_SRBID;
+      rrcDeliveryReport->protocolIEs.list.array[idx1]->criticality = Criticality_ignore;
+      rrcDeliveryReport->protocolIEs.list.array[idx1]->value.present = RRCDeliveryReportIEs__value_PR_SRBID;
+      rrcDeliveryReport->protocolIEs.list.array[idx1]->value.choice.SRBID =  rrcDelivery->srbId;
 
       xer_fprint(stdout, &asn_DEF_F1AP_PDU, f1apMsg);
 
-      /* Encode the F1SetupRequest type as APER */
+      /* Encode the RRC DELIVERY REPORT type as APER */
       memset(encBuf, 0, ENC_BUF_MAX_LEN);
       encBufSize = 0;
       encRetVal = aper_encode(&asn_DEF_F1AP_PDU, 0, f1apMsg, PrepFinalEncBuf,\
@@ -9838,223 +11499,494 @@ uint8_t BuildAndSendF1ResetReq()
       /* Encode results */
       if(encRetVal.encoded == ENCODE_FAIL)
       {
-        DU_LOG("\nERROR  -->  F1AP : Could not encode F1Reset structure (at %s)\n",\
+        DU_LOG("\nERROR  -->  F1AP : Could not encode RRC Delivery Msg structure (at %s)\n",\
               encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
         break;
       }
       else
       {
-        DU_LOG("\nDEBUG   -->  F1AP : Created APER encoded buffer for F1Reset\n");
-        for(idx=0; idx< encBufSize; idx++)
+        DU_LOG("\nDEBUG   -->  F1AP : Created APER encoded buffer for RRC Delivery Msg \n");
+        for(idx=0; idx< encBufSize; idx++)
+        {
+           printf("%x",encBuf[idx]);
+        }
+      }
+
+      /* Sending msg */
+      if(sendF1APMsg() != ROK)
+      {
+        DU_LOG("\nERROR  -->  F1AP : Sending RRC delivery  msg request failed");
+        break;
+      }
+      ret = ROK;
+      break;
+
+   }while(true);
+
+   freeRrcDeliveryReport(f1apMsg);
+   return ret;
+}
+
+/*******************************************************************
+ *
+ * @brief Processes cells to be activated
+ *
+ * @details
+ *
+ *    Function : extractCellsToBeActivated
+ *
+ *    Functionality:
+ *      - Processes cells to be activated list received in F1SetupRsp
+ *
+ * @params[in] void
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+
+uint8_t extractCellsToBeActivated(Cells_to_be_Activated_List_t cellsToActivate)
+{
+   uint8_t  ret = ROK;
+   uint16_t idx, nci, pci = 0;
+   Cells_to_be_Activated_List_Item_t cell;
+
+   for(idx=0; idx<cellsToActivate.list.count; idx++)
+   {
+      nci = 0;
+      cell = cellsToActivate.list.array[idx]->value.choice.Cells_to_be_Activated_List_Item;
+      bitStringToInt(&cell.nRCGI.nRCellIdentity, &nci);
+
+      if(cell.nRPCI)
+      {
+        pci = *cell.nRPCI;
+      }
+      ret = duProcCellsToBeActivated(cell.nRCGI.pLMN_Identity.buf, nci, pci);
+   }
+   return ret;
+}
+/******************************************************************
+*
+* @brief Processes F1 Setup Response allocated by aper_decoder 
+*
+* @details
+*
+*    Function : freeF1SetupRsp 
+*
+*    Functionality: free F1 Setup Response allocated by aper_decoder 
+*
+* @params[in] F1SetupResponse_t *f1SetRspMsg 
+* @return void 
+*
+* ****************************************************************/
+
+void freeAperDecodeF1SetupRsp(F1SetupResponse_t *f1SetRspMsg)
+{
+   uint8_t ieIdx =0;
+   uint8_t arrIdx =0;
+   Cells_to_be_Activated_List_t *cellToActivate =NULLP;
+   RRC_Version_t      *rrcVer =NULLP;
+
+   if(f1SetRspMsg->protocolIEs.list.array)
+   {
+      for(ieIdx=0; ieIdx<f1SetRspMsg->protocolIEs.list.count; ieIdx++)
+      {
+        if(f1SetRspMsg->protocolIEs.list.array[ieIdx])
         {
-           printf("%x",encBuf[idx]);
-        }
-      }
+           switch(f1SetRspMsg->protocolIEs.list.array[ieIdx]->id)
+           {
+              case ProtocolIE_ID_id_Cells_to_be_Activated_List:
+                 {
+                    cellToActivate =
+                       &f1SetRspMsg->protocolIEs.list.array[ieIdx]->value.choice.Cells_to_be_Activated_List;
+                    if(cellToActivate->list.array)
+                    {
+                       for(arrIdx=0; arrIdx<cellToActivate->list.count ; arrIdx++)
+                       {
+                          if(cellToActivate->list.array[arrIdx])
+                          {
 
-      if(SendF1APMsg(DU_APP_MEM_REGION, DU_POOL) != ROK)
-      {
-        DU_LOG("\nERROR  -->  F1AP : Sending F1 Reset request failed");
-        break;
-      }
+                             if(cellToActivate->list.array[0]->value.choice.Cells_to_be_Activated_List_Item.nRCGI.\
+                             pLMN_Identity.buf)
+                             {
+                                if(cellToActivate->list.array[0]->value.choice.\
+                                      Cells_to_be_Activated_List_Item.nRCGI.nRCellIdentity.buf)
+                                {
+                                   free(cellToActivate->list.array[0]->value.choice.\
+                                         Cells_to_be_Activated_List_Item.nRCGI.nRCellIdentity.buf);
+                                }
 
-      ret = ROK;
-      break;
-   }while(true);
+                                free(cellToActivate->list.array[0]->value.choice.Cells_to_be_Activated_List_Item.\
+                                      nRCGI.pLMN_Identity.buf);
+                             }
+                             free(cellToActivate->list.array[arrIdx]);
+                          }
+                       }
+                       free(cellToActivate->list.array);
+                    }
+                    break;
+                 }
+              case ProtocolIE_ID_id_TransactionID:
+                 {
+                    break;
+                 }
+              case ProtocolIE_ID_id_gNB_CU_Name:
+                 {
+                    free(f1SetRspMsg->protocolIEs.list.array[ieIdx]->value.choice.GNB_CU_Name.buf);
+                    break;
+                 }
+              case ProtocolIE_ID_id_GNB_CU_RRC_Version:
+                 {
+                    rrcVer = &f1SetRspMsg->protocolIEs.list.array[ieIdx]->value.choice.RRC_Version;
+                    if(rrcVer->latest_RRC_Version.buf)
+                    {
+                       if(rrcVer->iE_Extensions)
+                       {
+                          if(rrcVer->iE_Extensions->list.array)
+                          {
+                             if(rrcVer->iE_Extensions->list.array[0])
+                             {
+                                if(rrcVer->iE_Extensions->list.\
+                                      array[0]->extensionValue.choice.Latest_RRC_Version_Enhanced.buf)
+                                {
+                                   free(rrcVer->iE_Extensions->list.\
+                                         array[0]->extensionValue.choice.Latest_RRC_Version_Enhanced.buf);
+                                }
+                                free(rrcVer->iE_Extensions->list.array[0]);
+                             }
+                             free(rrcVer->iE_Extensions->list.array);
+                          }
+                          free(rrcVer->iE_Extensions);
+                       }
+                       free(rrcVer->latest_RRC_Version.buf);
+                    }
+                    break;
 
-   FreeF1ResetReq(f1apMsg);
-   return ret;
+                 }
+              default:
+                 {
+                    DU_LOG("\nERROR  -->  DU_APP : Invalid IE received in F1SetupRsp:%ld",
+                          f1SetRspMsg->protocolIEs.list.array[ieIdx]->id);
+                 }
+           }
+           free(f1SetRspMsg->protocolIEs.list.array[ieIdx]);
+        }
+      }
+      free(f1SetRspMsg->protocolIEs.list.array);
+   }
 }
-/*******************************************************************
+/******************************************************************
  *
- * @brief Build And Send F1ResetAck
+ * @brief Processes F1 Setup Response sent by CU
  *
  * @details
  *
- *    Function : BuildAndSendF1ResetAck
+ *    Function : procF1SetupRsp
  *
- *    Functionality:
- *         - Build And Send  F1ResetRSP
+ *    Functionality: Processes F1 Setup Response sent by CU
  *
+ * @params[in] F1AP_PDU_t ASN decoded F1AP message
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-void FreeF1ResetAck(F1AP_PDU_t *f1apMsg)
+uint8_t procF1SetupRsp(F1AP_PDU_t *f1apMsg)
 {
-   uint8_t idx;
-   ResetAcknowledge_t *f1ResetAck;
+   uint8_t ret = ROK;
+   uint16_t idx =0;
+   F1SetupResponse_t *f1SetRspMsg = NULLP;
+   GNB_CU_Name_t     *cuName = NULLP;
+   F1SetupRsp  f1SetRspDb;
+   RRC_Version_t      *rrcVer =NULLP;
+   
+   memset(&f1SetRspDb, 0, sizeof(F1SetupRsp));
 
-   if(f1apMsg)
+   DU_LOG("\nINFO   -->  F1AP : F1 Setup Response received");
+   f1SetRspMsg = &f1apMsg->choice.successfulOutcome->value.choice.F1SetupResponse;
+
+   for(idx=0; idx<f1SetRspMsg->protocolIEs.list.count; idx++)
    {
-      if(f1apMsg->choice.successfulOutcome)
+      switch(f1SetRspMsg->protocolIEs.list.array[idx]->id)
       {
-        f1ResetAck= &f1apMsg->choice.successfulOutcome->value.choice.ResetAcknowledge;
-
-        if(f1ResetAck->protocolIEs.list.array)
-        {
-           for(idx=0; idx<f1ResetAck->protocolIEs.list.count ; idx++)
+        case ProtocolIE_ID_id_Cells_to_be_Activated_List:
            {
-              if(f1ResetAck->protocolIEs.list.array[idx])
-              {
-                 DU_FREE(f1ResetAck->protocolIEs.list.array[idx], sizeof(ResetAcknowledgeIEs_t));
-              }
+              extractCellsToBeActivated(f1SetRspMsg->protocolIEs.list.array[idx]->\
+                    value.choice.Cells_to_be_Activated_List);
+              break;
            }
-           DU_FREE(f1ResetAck->protocolIEs.list.array, f1ResetAck->protocolIEs.list.size );
-        }
-        DU_FREE(f1apMsg->choice.successfulOutcome, sizeof(SuccessfulOutcome_t));
+        case ProtocolIE_ID_id_TransactionID:
+           {
+              f1SetRspDb.transId = f1SetRspMsg->protocolIEs.list.array[idx]->\
+                                   value.choice.TransactionID;
+              break;
+           }
+        case ProtocolIE_ID_id_gNB_CU_Name:
+           {
+              cuName = &f1SetRspMsg->protocolIEs.list.array[idx]->\
+                       value.choice.GNB_CU_Name;
+              strcpy(f1SetRspDb.cuName, (const char*)cuName->buf);
+              break;
+           }
+        case ProtocolIE_ID_id_GNB_CU_RRC_Version:
+           {
+              rrcVer = &f1SetRspMsg->protocolIEs.list.array[idx]->value.choice.RRC_Version;
+              strcpy(f1SetRspDb.rrcVersion.rrcVer,
+                    (const char*)rrcVer->latest_RRC_Version.buf);
+              break;
+           }
+        default:
+           DU_LOG("\nERROR  -->  DU_APP : Invalid IE received in F1SetupRsp:%ld",
+                 f1SetRspMsg->protocolIEs.list.array[idx]->id);
       }
-      DU_FREE(f1apMsg, sizeof(F1AP_PDU_t));
+      duProcF1SetupRsp();
    }
+   
+   freeAperDecodeF1SetupRsp(f1SetRspMsg);
+   return ret;
 }
-
 /*******************************************************************
- *
- * @brief Build And Send F1ResetAck
- *
- * @details
- *
- *    Function : BuildAndSendF1ResetAck
- *
- *    Functionality:
- *         - Build And Send  F1ResetRSP
- *
- *  @params[in]
- * @return ROK     - success
- *         RFAILED - failure
- *
- * ****************************************************************/
-uint8_t BuildAndSendF1ResetAck()
+*
+* @brief free GNB DU config update ack
+*
+* @details
+*
+*    Function : freeAperDecodeGnbDuAck 
+*
+*    Functionality: Processes GNB DU config update ack And
+*                     added free part for the memory allocated by aper_decoder
+*
+* @params[in] F1AP_PDU_t ASN decoded F1AP message
+* @return ROK     - success
+*         RFAILED - failure
+*
+* ****************************************************************/
+
+void freeAperDecodeGnbDuAck(GNBDUConfigurationUpdateAcknowledge_t *gnbDuAck)
 {
-   uint8_t                idx = 0;
-   uint8_t                elementCnt = 0;
-   uint8_t                ret = RFAILED;
-   F1AP_PDU_t             *f1apMsg = NULL;
-   ResetAcknowledge_t     *f1ResetAck = NULLP;
-   asn_enc_rval_t         encRetVal;
-   DU_LOG("\nINFO   -->  F1AP : Building F1 Reset Acknowledgment \n");
+   uint8_t ieIdx = 0;
 
-   do{
-      /* Allocate the memory for F1ResetRequest_t */
-      DU_ALLOC(f1apMsg, sizeof(F1AP_PDU_t));
-      if(f1apMsg == NULLP)
+   if(gnbDuAck->protocolIEs.list.array)
+   {
+      for(ieIdx=0; ieIdx < gnbDuAck->protocolIEs.list.count; ieIdx++)
       {
-        DU_LOG("\nERROR  -->  F1AP : Memory allocation for F1AP-PDU failed");
-        break;
+        if(gnbDuAck->protocolIEs.list.array[ieIdx])
+        {
+           free(gnbDuAck->protocolIEs.list.array[ieIdx]);
+        }
       }
+      free(gnbDuAck->protocolIEs.list.array);
+   }
+}
 
-      f1apMsg->present =  F1AP_PDU_PR_successfulOutcome;
+/*******************************************************************
+*
+* @brief Building  result of gnb-du config update ack output
+*
+* @details
+*
+*    Function : duProcGnbDuCfgUpdAckMsg 
+*
+*    Functionality: 
+*        Building output of gnb-du config update ack 
+*
+* @params[in] transId
+* @return void
+*
+* ****************************************************************/
 
-      DU_ALLOC(f1apMsg->choice.successfulOutcome, sizeof(SuccessfulOutcome_t));
-      if(f1apMsg->choice.successfulOutcome == NULLP)
-      {
-        DU_LOG("\nERROR  -->  F1AP : Memory allocation for F1AP-PDU failed");
-        break;
-      }
-      f1apMsg->choice.successfulOutcome->criticality   = Criticality_reject;
-      f1apMsg->choice.successfulOutcome->value.present = SuccessfulOutcome__value_PR_ResetAcknowledge;
-      f1ResetAck = &f1apMsg->choice.successfulOutcome->value.choice.ResetAcknowledge;
+uint8_t duProcGnbDuCfgUpdAckMsg(uint8_t transId)
+{
+   uint8_t ueId =0 , ueIdx =0, ieIdx=0,arrIdx=0;
+   uint8_t cellId =0, cellIdx =0, crnti=0;
+   CmLList *f1apPduNode;
+   ReservedF1apPduInfo *f1apPduInfo;
+   F1AP_PDU_t *f1apMsgPdu = NULLP;
+   GNBDUConfigurationUpdate_t *gnbDuConfigUpdate = NULLP;
+   BIT_STRING_t *cellIdentity;
+   struct Served_Cells_To_Delete_ItemIEs *deleteItemIe;
+   Served_Cells_To_Delete_List_t *cellsToDelete;
+   Served_Cells_To_Delete_Item_t *deleteItem=NULLP;
 
-      elementCnt = 1;
+   DU_LOG("\nINFO   -->  DU APP: GNB-DU config update Ack received ");
+   f1apPduNode = searchFromReservedF1apPduList(transId);
+   f1apPduInfo = (ReservedF1apPduInfo *)f1apPduNode->node;
+   f1apMsgPdu = (F1AP_PDU_t *)f1apPduInfo->f1apMsg;
+
+   if(f1apMsgPdu)
+   {
+      if(f1apMsgPdu->choice.initiatingMessage)
+      {
+         gnbDuConfigUpdate = &f1apMsgPdu->choice.initiatingMessage->value.choice.GNBDUConfigurationUpdate;
+         for(ieIdx=0; ieIdx < gnbDuConfigUpdate->protocolIEs.list.count; ieIdx++)
+         {
+            switch(gnbDuConfigUpdate->protocolIEs.list.array[ieIdx]->id)
+            {
+               case ProtocolIE_ID_id_Served_Cells_To_Delete_List:
+               {
+                  cellsToDelete = &gnbDuConfigUpdate->protocolIEs.list.array[ieIdx]->value.choice.\
+                  Served_Cells_To_Delete_List;
+                  if(cellsToDelete->list.array)
+                  {
+                     if(cellsToDelete->list.array[arrIdx])
+                     {
+                        deleteItemIe = (Served_Cells_To_Delete_ItemIEs_t*)cellsToDelete->list.array[arrIdx];
+                        deleteItem=&deleteItemIe->value.choice.Served_Cells_To_Delete_Item;
+                        if(deleteItem->oldNRCGI.nRCellIdentity.buf)
+                        {
+                           cellIdentity = &deleteItem->oldNRCGI.nRCellIdentity;
+                           bitStringToInt(cellIdentity, &cellId);
+                        }
+                     }
+                  }
 
-      f1ResetAck->protocolIEs.list.count = elementCnt;
-      f1ResetAck->protocolIEs.list.size = elementCnt*sizeof(ResetAcknowledgeIEs_t *);
+                  GET_CELL_IDX(cellId, cellIdx);
+                  if(duCb.actvCellLst[cellIdx] != NULLP)
+                  {
+                     for(ueIdx = 0; ueIdx < duCb.numUe; ueIdx++)
+                     {
+                        crnti = duCb.actvCellLst[cellIdx]->ueCb[ueIdx].crnti;
+                        GET_UE_IDX(crnti,ueId);
+                        BuildAndSendUeContextReleaseReq(cellId, ueId);
+                     }
+                  }
+                  else
+                  {
+                     DU_LOG("ERROR  --> DU_APP : duProcGnbDuCfgUpdAckMsg(): CellId [%d] not found", cellId);
+                     return RFAILED;
+                  }
 
-      DU_ALLOC(f1ResetAck->protocolIEs.list.array, f1ResetAck->protocolIEs.list.size );
-      if(f1ResetAck->protocolIEs.list.array == NULLP)
-      {
-        DU_LOG("\nERROR  -->  F1AP : Memory allocation for F1ResetAckIEs failed");
-        break;
-      }
+                  break;
+               }
 
-      for(idx=0; idx<elementCnt; idx++)
-      {
-        DU_ALLOC(f1ResetAck->protocolIEs.list.array[idx], sizeof(ResetAcknowledgeIEs_t));
-        if(f1ResetAck->protocolIEs.list.array[idx] == NULLP)
-        {
-           break;
-        }
+               default:
+                  break;
+            }
+         }
       }
-      /*TransactionID*/
-      idx = 0;
-      f1ResetAck->protocolIEs.list.array[idx]->id = ProtocolIE_ID_id_TransactionID;
-      f1ResetAck->protocolIEs.list.array[idx]->criticality = Criticality_reject;
-      f1ResetAck->protocolIEs.list.array[idx]->value.present = ResetAcknowledgeIEs__value_PR_TransactionID;
-      f1ResetAck->protocolIEs.list.array[idx]->value.choice.TransactionID = TRANS_ID;
+   }
+   
+   FreeDUConfigUpdate(f1apMsgPdu);
+   deleteFromReservedF1apPduList(f1apPduNode);
+   return ROK;
+}
 
-      xer_fprint(stdout, &asn_DEF_F1AP_PDU, f1apMsg);
+/*******************************************************************
+*
+* @brief Processes GNB DU config update ack
+*
+* @details
+*
+*    Function : procF1GNBDUCfgUpdAck
+*
+*    Functionality: added free part for the memory allocated by aper_decoder
+*
+* @params[in] F1AP_PDU_t *f1apMsg 
+* @return void 
+*
+* ****************************************************************/
+uint8_t procF1GNBDUCfgUpdAck(F1AP_PDU_t *f1apMsg)
+{
+   uint8_t ieIdx=0,transId=0;
+   GNBDUConfigurationUpdateAcknowledge_t *gnbDuAck = NULLP;
 
-      /* Encode the F1SetupRequest type as UPER */
-      memset(encBuf, 0, ENC_BUF_MAX_LEN);
-      encBufSize = 0;
-      encRetVal = aper_encode(&asn_DEF_F1AP_PDU, 0, f1apMsg, PrepFinalEncBuf, encBuf);
+   DU_LOG("\nINFO   -->  F1AP : GNB-DU config update acknowledgment");
+   gnbDuAck = &f1apMsg->choice.successfulOutcome->value.choice.GNBDUConfigurationUpdateAcknowledge;
 
-      /* Check encode results */
-      if(encRetVal.encoded == ENCODE_FAIL)
-      {
-        DU_LOG("\nERROR  -->  F1AP : Could not encode F1ResetAck structure (at %s)\n",\
-              encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
-        break;
-      }
-      else
-      {
-        DU_LOG("\nDUBUG   -->  F1AP : Created APER encoded buffer for F1ResetAck\n");
-        for(int i=0; i< encBufSize; i++)
-        {
-           printf("%x",encBuf[i]);
-        }
-      }
-      /* Sending msg */
-      if(SendF1APMsg(DU_APP_MEM_REGION, DU_POOL) != ROK)
+   for(ieIdx=0; ieIdx < gnbDuAck->protocolIEs.list.count; ieIdx++)
+   {
+      switch(gnbDuAck->protocolIEs.list.array[ieIdx]->id)
       {
-        DU_LOG("\nERROR  -->  F1AP : Sending F1 Reset Acknowledgement failed");
-        break;
+         case ProtocolIE_ID_id_TransactionID:
+            {
+               transId = gnbDuAck->protocolIEs.list.array[ieIdx]->value.choice.TransactionID;
+               break;
+            }
+         case ProtocolIE_ID_id_Cells_to_be_Activated_List:
+            {
+               break;
+            }
+         default :
+            {
+               DU_LOG("\nERROR  -->  F1AP: procF1GNBDUCfgUpdAck(): Invalid IE Received: %ld", \
+                     gnbDuAck->protocolIEs.list.array[ieIdx]->id);
+               break;
+            }
       }
+   }
+   
+   duProcGnbDuCfgUpdAckMsg(transId);
+    
+#if 0
+   /* presently we are not supporting F1 Reset from DU to CU , we are only
+    * supporting F1 Reset from CU to DU */
 
-      ret = ROK;
-      break;
-   }while(true);
+   if(BuildAndSendF1ResetReq() != ROK)
+   {
+      return RFAILED;
+   }
+#endif
 
-   FreeF1ResetAck(f1apMsg);
-   return ret;
+   freeAperDecodeGnbDuAck(gnbDuAck);
+   return ROK;
 }
 /******************************************************************
 *
-* @brief free F1 reset msg allocated by aper_decoder 
+* @brief free DL RRC Message Transfer allocated by aper_decoder 
 *
 * @details
 *
-*    Function : freeAperDecodeF1ResetMsg 
+*    Function : freeAperDecodef1DlRrcMsg 
 *
-*    Functionality: free F1 reset msg allocated by aper_decoder 
+*    Functionality: free DL RRC Message Transfer allocated by aper_decoder 
 *
-* @params[in] Reset_t *f1ResetMsg 
-* @return void 
+* @params[in] DLRRCMessageTransfer_t *f1DlRrcMsg 
+* @return ROK     - success
+*         RFAILED - failure
 *
 * ****************************************************************/
 
-void freeAperDecodeF1ResetMsg(Reset_t *f1ResetMsg)
+void freeAperDecodef1DlRrcMsg(DLRRCMessageTransfer_t *f1DlRrcMsg)
 {
    uint8_t ieIdx =0;
-   if(f1ResetMsg->protocolIEs.list.array)
+   RRCContainer_t *rrcContainer = NULLP;
+
+   if(f1DlRrcMsg->protocolIEs.list.array)
    {
-      for(ieIdx=0 ;ieIdx < f1ResetMsg->protocolIEs.list.count ; ieIdx++)
+      for(ieIdx=0; ieIdx<f1DlRrcMsg->protocolIEs.list.count; ieIdx++)
       {
-        if(f1ResetMsg->protocolIEs.list.array[ieIdx])
+        if(f1DlRrcMsg->protocolIEs.list.array[ieIdx])
         {
-           free(f1ResetMsg->protocolIEs.list.array[ieIdx]);
+           switch(f1DlRrcMsg->protocolIEs.list.array[ieIdx]->id)
+           {
+              case ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID:
+                 break;
+              case ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID:
+                 break;
+              case ProtocolIE_ID_id_SRBID:
+                 break;
+              case ProtocolIE_ID_id_RRCContainer:
+                 {
+                    rrcContainer =&f1DlRrcMsg->protocolIEs.list.array[ieIdx]->value.choice.RRCContainer;
+                    free(rrcContainer->buf);
+                 }
+              case ProtocolIE_ID_id_ExecuteDuplication:
+                 break;
+              case ProtocolIE_ID_id_RRCDeliveryStatusRequest:
+                 break;
+                 break;
+           }
+           free(f1DlRrcMsg->protocolIEs.list.array[ieIdx]);
         }
       }
-      free(f1ResetMsg->protocolIEs.list.array);
+      free(f1DlRrcMsg->protocolIEs.list.array);
    }
 }
-
 /******************************************************************
  *
  * @brief Processes DL RRC Message Transfer  sent by CU
  *
  * @details
  *
- *    Function : procF1ResetReq
+ *    Function : procF1DlRrcMsgTrans
  *
  *    Functionality: Processes DL RRC Message Transfer sent by CU
  *
@@ -10063,669 +11995,1247 @@ void freeAperDecodeF1ResetMsg(Reset_t *f1ResetMsg)
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint8_t procF1ResetReq(F1AP_PDU_t *f1apMsg)
+uint8_t procF1DlRrcMsgTrans(F1AP_PDU_t *f1apMsg)
 {
-   /* we are currently not supporting Ue release. right now we are supporting only init case of fireset */
-   uint8_t       ieIdx = 0;
-   uint8_t        ret = ROK;
-   Reset_t       *f1ResetMsg = NULLP;
+   uint8_t  idx, ret;
+   DLRRCMessageTransfer_t *f1DlRrcMsg = NULLP;
+   F1DlRrcMsg dlMsg;
+   memset(&dlMsg, 0, sizeof(F1DlRrcMsg));
 
-   DU_LOG("\nINFO   -->  Processing F1 reset request");
-   f1ResetMsg = &f1apMsg->choice.initiatingMessage->value.choice.Reset;
+   DU_LOG("\nINFO   -->  DU_APP : DL RRC message transfer Recevied");
+   f1DlRrcMsg = &f1apMsg->choice.initiatingMessage->value.choice.DLRRCMessageTransfer;
 
-   for(ieIdx=0; ieIdx<f1ResetMsg->protocolIEs.list.count; ieIdx++)
+   ret = ROK;
+
+   for(idx=0; idx<f1DlRrcMsg->protocolIEs.list.count; idx++)
+   {
+      switch(f1DlRrcMsg->protocolIEs.list.array[idx]->id)
+      {
+        case ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID:
+           {
+              dlMsg.gnbCuUeF1apId = f1DlRrcMsg->protocolIEs.list.array[idx]->value.choice.GNB_CU_UE_F1AP_ID;
+              break;
+           }
+        case ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID:
+           {
+              dlMsg.gnbDuUeF1apId = f1DlRrcMsg->protocolIEs.list.array[idx]->value.choice.GNB_DU_UE_F1AP_ID;
+              break;
+           }
+        case ProtocolIE_ID_id_SRBID:
+           {
+              dlMsg.srbId = f1DlRrcMsg->protocolIEs.list.array[idx]->value.choice.SRBID;
+              break;
+           }
+        case ProtocolIE_ID_id_ExecuteDuplication:
+           dlMsg.execDup = true;
+           break;
+
+        case ProtocolIE_ID_id_RRCContainer:
+           {
+              if(f1DlRrcMsg->protocolIEs.list.array[idx]->value.choice.RRCContainer.size > 0)
+              {
+                 dlMsg.rrcMsgSize = f1DlRrcMsg->protocolIEs.list.array[idx]->value.choice.RRCContainer.size;
+                 DU_ALLOC(dlMsg.rrcMsgPdu, dlMsg.rrcMsgSize);
+                 if(dlMsg.rrcMsgPdu)
+                 {
+                    memcpy(dlMsg.rrcMsgPdu, f1DlRrcMsg->protocolIEs.list.array[idx]->value.choice.RRCContainer.buf,\
+                       dlMsg.rrcMsgSize);
+                 }
+                 else
+                 {
+                    DU_LOG("\nERROR  -->  DU APP : Memory alloc Failed at RRC Container at procF1DlRrcMsgTrans()");
+                     return RFAILED;
+                 }
+              }
+              else
+              {
+                 DU_LOG("\nERROR  -->  DU_APP : RRC Container Size is invalid:%ld",\
+                 f1DlRrcMsg->protocolIEs.list.array[idx]->value.choice.RRCContainer.size);
+                 return RFAILED;
+              }
+              break;
+           }
+         case ProtocolIE_ID_id_RRCDeliveryStatusRequest:
+           {
+              dlMsg.deliveryStatRpt = true;
+              break;
+           }
+        default:
+           DU_LOG("\nERROR  -->  DU_APP : Invalid IE received in DL RRC Msg Transfer:%ld",
+                 f1DlRrcMsg->protocolIEs.list.array[idx]->id);
+      }
+   }
+
+   ret = duProcDlRrcMsg(&dlMsg);
+
+   freeAperDecodef1DlRrcMsg(f1DlRrcMsg);
+   return ret;
+}
+/*******************************************************************
+ *
+* @brief Builds the DRB to be Setup Mod list
+*
+* @details
+*
+*    Function : 
+*
+*    Functionality: Constructs the DRB to be Setup Mod list
+*
+* @params[in] DRBs_SetupMod_List_t *drbSet
+*
+* @return ROK     - success
+*         RFAILED - failure
+*
+* ****************************************************************/
+
+uint8_t BuildDrbSetupModList(DRBs_SetupMod_List_t *drbSet , DuUeCfg *ueCfg)
+{
+   uint8_t arrIdx =0;
+   uint8_t drbCnt =0;
+   struct DRBs_SetupMod_ItemIEs *drbItemIe;
+
+   drbCnt = 1;
+   drbSet->list.count = drbCnt;
+   drbSet->list.size = drbCnt * sizeof(DRBs_SetupMod_ItemIEs_t *);
+   DU_ALLOC(drbSet->list.array, drbSet->list.size);
+   if(drbSet->list.array == NULLP)
+   {
+      DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildDrbToBeSetupModList");
+      return  RFAILED;
+   }
+   for(arrIdx=0; arrIdx<drbCnt; arrIdx++)
    {
-      switch(f1ResetMsg->protocolIEs.list.array[ieIdx]->id)
+      DU_ALLOC(drbSet->list.array[arrIdx], sizeof(DRBs_SetupMod_ItemIEs_t));
+      if(drbSet->list.array[arrIdx] == NULLP)
       {
-        case ProtocolIE_ID_id_TransactionID:
-           break;
-
-        case ProtocolIE_ID_id_Cause:
-           break;
-
-        case ProtocolIE_ID_id_ResetType:
-           {
-              break;
-           }
+             DU_LOG("\nERROR  -->  F1AP : Memory allocation failed in BuildDrbToBeSetupModList");
+             return  RFAILED;
+      }
 
-        default:
-           break;
+      drbItemIe = (struct DRBs_SetupMod_ItemIEs *)drbSet->list.array[arrIdx];
+      drbItemIe->id = ProtocolIE_ID_id_DRBs_SetupMod_Item;
+      drbItemIe->criticality = Criticality_reject;
+      drbItemIe->value.present = DRBs_SetupMod_ItemIEs__value_PR_DRBs_SetupMod_Item;
+      drbItemIe->value.choice.DRBs_SetupMod_Item.dRBID = ueCfg->upTnlInfo[arrIdx].drbId;
+      if(fillDlTnlSetupList(&drbItemIe->value.choice.DRBs_SetupMod_Item.dLUPTNLInformation_ToBeSetup_List,\
+      &ueCfg->upTnlInfo[arrIdx])!= ROK)
+      {
+         DU_LOG("\nERROR  -->  F1AP : Failed to fill DlTnl SetupList in BuildDrbToBeSetupModList");
+         return RFAILED;
       }
+      
    }
-   ret = BuildAndSendF1ResetAck();
-   DU_LOG("\nINFO   -->  UE release is not supported for now");
-
-   freeAperDecodeF1ResetMsg(f1ResetMsg);
 
-   return ret;
+   return ROK;
 }
-
 /*******************************************************************
- *
- * @brief free the RRC delivery report
- *
- * @details
- *
- *    Function : freeRrcDeliveryReport
- *
- *    Functionality: free the RRC delivery report
- *
- * @params[in]
- * @return ROK     - success
- *         RFAILED - failure
- *
- * ****************************************************************/
-void freeRrcDeliveryReport(F1AP_PDU_t  *f1apMsg )
+* @brief Free the memory allocated for DRB setup List
+*
+* @details
+*
+*    Function : FreeDrbSetupModList 
+*
+*    Functionality:
+*       Free the memory allocated for DRB setup list
+*
+* @params[in] DRBs_Setup_List_t *
+* @return void
+*
+* ****************************************************************/
+void FreeDrbSetupModList(DRBs_SetupMod_List_t *drbSetupList)
 {
-   uint8_t idx=0;
-   RRCDeliveryReport_t *rrcDeliveryReport= NULLP;
+   uint8_t arrIdx = 0;
+   DRBs_SetupMod_ItemIEs_t *drbItemIe = NULLP;
+
+   for(arrIdx = 0; arrIdx < drbSetupList->list.count; arrIdx++)
+   {
+      drbItemIe = ((DRBs_SetupMod_ItemIEs_t *)drbSetupList->list.array[arrIdx]);
+      freeDlTnlInfo(&drbItemIe->value.choice.DRBs_SetupMod_Item.dLUPTNLInformation_ToBeSetup_List);
+   }
+}
+/*******************************************************************
+* @brief Free the memory allocated for UE Context Mod Response
+*
+* @details
+*
+*    Function : FreeUeContextModResp 
+*
+*    Functionality:
+*       Free the memory allocated for UE Context Mod Response
+*
+* @params[in] F1AP_PDU_t *f1apMsg
+* @return void
+*
+* ****************************************************************/
 
+void FreeUeContextModResp(F1AP_PDU_t *f1apMsg)
+{
+   uint8_t ieIdx;
+   UEContextModificationResponse_t *ueContextModifyRes = NULLP;
    if(f1apMsg)
    {
-      if(f1apMsg->choice.initiatingMessage)
+      if(f1apMsg->choice.successfulOutcome)
       {
-        rrcDeliveryReport = &f1apMsg->choice.initiatingMessage->value.choice.RRCDeliveryReport;
-        if(rrcDeliveryReport->protocolIEs.list.array)
-        {
-           for(idx =0 ;idx <rrcDeliveryReport->protocolIEs.list.count ;
-                 idx++)
-           {
-              if(rrcDeliveryReport->protocolIEs.list.array[idx])
-              {
-                 DU_FREE(rrcDeliveryReport->protocolIEs.list.array[idx],
-                       sizeof(RRCDeliveryReportIEs_t));
-              }   
-           }
-           DU_FREE(rrcDeliveryReport->protocolIEs.list.array,
-                 rrcDeliveryReport->protocolIEs.list.size);
-        }
-        DU_FREE(f1apMsg->choice.initiatingMessage,sizeof(InitiatingMessage_t));
+         ueContextModifyRes =&f1apMsg->choice.successfulOutcome->value.choice.UEContextModificationResponse;
+         if(ueContextModifyRes->protocolIEs.list.array)
+         {
+            for(ieIdx=0 ; ieIdx<ueContextModifyRes->protocolIEs.list.count; ieIdx++)
+            {
+               if(ueContextModifyRes->protocolIEs.list.array[ieIdx])
+               {
+                  switch(ueContextModifyRes->protocolIEs.list.array[ieIdx]->id)
+                  {
+                     case ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID:
+                        break;
+                     case ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID:
+                        break;
+                     case ProtocolIE_ID_id_DRBs_SetupMod_List:
+                        {
+                            FreeDrbSetupModList(&(ueContextModifyRes->protocolIEs.list.array[ieIdx]->\
+                            value.choice.DRBs_SetupMod_List));
+                            break; 
+                        }
+                  }
+                  DU_FREE(ueContextModifyRes->protocolIEs.list.array[ieIdx], sizeof(UEContextModificationResponse_t));
+               }
+
+            }
+            DU_FREE(ueContextModifyRes->protocolIEs.list.array, ueContextModifyRes->protocolIEs.list.size);
+         }
+         DU_FREE(f1apMsg->choice.successfulOutcome, sizeof(SuccessfulOutcome_t));
       }
-      DU_FREE(f1apMsg,
-           sizeof(F1AP_PDU_t));
+      DU_FREE(f1apMsg, sizeof(F1AP_PDU_t));
    }
 }
 
-/*******************************************************************
+/*****************************************************************i
 *
-* @brief Builds and sends the RRC delivery report
+* @brief Creating the ue context modifcation response and sending
 *
 * @details
 *
-*    Function : BuildAndSendRrcDeliveryReport
-*
-*    Functionality: Builds and sends the RRC delivery report
+*    Function : BuildAndSendUeContextModRsp 
 *
-* @params[in]
+*    Functionality:
+*         - Creating the ue context modifcation response 
 *
+* @params[in] uint8_t cellId,uint8_t ueIdx
 * @return ROK     - success
 *         RFAILED - failure
 *
 * ****************************************************************/
-uint8_t BuildAndSendRrcDeliveryReport(uint32_t gnbCuUeF1apId, \
-   uint32_t gnbDuUeF1apId, RrcDeliveryReport *rrcDelivery)
+uint8_t BuildAndSendUeContextModRsp(uint8_t cellId,uint8_t ueIdx)
 {
-   uint8_t             ret = RFAILED;
-   uint8_t             idx    = 0;
-   uint8_t             idx1   = 0;
-   uint8_t             elementCnt = 0;
-   F1AP_PDU_t          *f1apMsg = NULLP;
-   asn_enc_rval_t      encRetVal;  
-   RRCDeliveryReport_t *rrcDeliveryReport= NULLP;
+   uint8_t   ieIdx = 0;
+   uint8_t   cellIdx =0;
+   uint8_t   elementCnt = 0;
+   uint8_t   ret = RFAILED;
+   uint32_t  gnbCuUeF1apId;   /* gNB-CU UE F1AP Id */
+   uint32_t  gnbDuUeF1apId;   /* gNB-DU UE F1AP Id */
+   F1AP_PDU_t *f1apMsg = NULLP;
+   asn_enc_rval_t         encRetVal;
+   UEContextModificationResponse_t *ueContextModifyRes = NULLP;
+   DuUeCb                   *ueCb = NULLP;
 
-   do{
+   DU_LOG("\nINFO  -->  F1AP : Building Ue context modification response\n");
 
-      DU_LOG("\nINFO   -->  F1AP : Building RRC delivery Message Transfer Message\n");
+   while(1)
+   {
       DU_ALLOC(f1apMsg, sizeof(F1AP_PDU_t));
       if(f1apMsg == NULLP)
       {
-        DU_LOG(" ERROR  -->  F1AP : Memory allocation for F1AP-PDU failed");
-        break;
+         DU_LOG("\nERROR  -->  F1AP : Memory allocation for F1AP-PDU failed Ue context modification");
+         break;
       }
-      f1apMsg->present = F1AP_PDU_PR_initiatingMessage;
-      DU_ALLOC(f1apMsg->choice.initiatingMessage,sizeof(InitiatingMessage_t));
-      if(f1apMsg->choice.initiatingMessage == NULLP)
+
+      f1apMsg->present =  F1AP_PDU_PR_successfulOutcome;
+
+      DU_ALLOC(f1apMsg->choice.successfulOutcome, sizeof(SuccessfulOutcome_t));
+      if(f1apMsg->choice.successfulOutcome == NULLP)
       {
-        DU_LOG(" ERROR  -->  F1AP : Memory allocation for  F1AP-PDU  failed");
-        break;
+         DU_LOG("\nERROR  -->  F1AP : Memory allocation for F1AP-PDU failed Ue context modification");
+         break;
       }
-      f1apMsg->choice.initiatingMessage->procedureCode = ProcedureCode_id_RRCDeliveryReport;
-      f1apMsg->choice.initiatingMessage->criticality   = Criticality_ignore;
-      f1apMsg->choice.initiatingMessage->value.present = InitiatingMessage__value_PR_RRCDeliveryReport;
+      f1apMsg->choice.successfulOutcome->procedureCode = ProcedureCode_id_UEContextModification;
+      f1apMsg->choice.successfulOutcome->criticality = Criticality_reject;
+      f1apMsg->choice.successfulOutcome->value.present = SuccessfulOutcome__value_PR_UEContextModificationResponse;
 
-      rrcDeliveryReport = &f1apMsg->choice.initiatingMessage->value.choice.RRCDeliveryReport;
-      elementCnt = 4;
-      rrcDeliveryReport->protocolIEs.list.count = elementCnt;
-      rrcDeliveryReport->protocolIEs.list.size = elementCnt * sizeof(RRCDeliveryReportIEs_t *);
+      ueContextModifyRes =&f1apMsg->choice.successfulOutcome->value.choice.UEContextModificationResponse;
 
-      /* Initialize the F1Setup members */
-      DU_ALLOC(rrcDeliveryReport->protocolIEs.list.array, rrcDeliveryReport->protocolIEs.list.size);
-      if(rrcDeliveryReport->protocolIEs.list.array == NULLP)
+      elementCnt = 3;
+      ueContextModifyRes->protocolIEs.list.count = elementCnt;
+      ueContextModifyRes->protocolIEs.list.size = elementCnt*sizeof(UEContextModificationResponse_t*);
+
+      /* Initialize the UE context modification members */
+      DU_ALLOC(ueContextModifyRes->protocolIEs.list.array, ueContextModifyRes->protocolIEs.list.size);
+      if(ueContextModifyRes->protocolIEs.list.array == NULLP)
       {
-        DU_LOG(" ERROR  -->  F1AP : Memory allocation for RRC Delivery  failed");
-        break;
+         DU_LOG("\nERROR  -->  F1AP : Memory allocation for UE context modifcation Request failed");
+         break;
       }
-      for(idx =0 ;idx <elementCnt; idx++)
+
+      for(ieIdx=0 ; ieIdx<elementCnt; ieIdx++)
       {
-        DU_ALLOC(rrcDeliveryReport->protocolIEs.list.array[idx], sizeof(RRCDeliveryReportIEs_t));
-        if(rrcDeliveryReport->protocolIEs.list.array[idx] == NULLP)
-        {
-           break;
-        }
+         DU_ALLOC(ueContextModifyRes->protocolIEs.list.array[ieIdx], sizeof(UEContextModificationResponse_t));
+         if(ueContextModifyRes->protocolIEs.list.array[ieIdx] == NULLP)
+         {
+            DU_LOG("\nERROR  -->  F1AP : Memory allocation for UE context modifcation Request failed");
+            break;
+         }
       }
 
-      idx1 = 0;
-
-      /*GNB CU UE F1AP ID*/
-      rrcDeliveryReport->protocolIEs.list.array[idx1]->id = ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID;
-      rrcDeliveryReport->protocolIEs.list.array[idx1]->criticality = Criticality_reject;
-      rrcDeliveryReport->protocolIEs.list.array[idx1]->value.present = RRCDeliveryReportIEs__value_PR_GNB_CU_UE_F1AP_ID;
-      rrcDeliveryReport->protocolIEs.list.array[idx1]->value.choice.GNB_CU_UE_F1AP_ID = gnbCuUeF1apId;
-
-      /*GNB DU UE F1AP ID*/
-      idx1++;
-      rrcDeliveryReport->protocolIEs.list.array[idx1]->id = ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID;
-      rrcDeliveryReport->protocolIEs.list.array[idx1]->criticality = Criticality_reject;
-      rrcDeliveryReport->protocolIEs.list.array[idx1]->value.present = RRCDeliveryReportIEs__value_PR_GNB_DU_UE_F1AP_ID;
-      rrcDeliveryReport->protocolIEs.list.array[idx1]->value.choice.GNB_DU_UE_F1AP_ID = gnbDuUeF1apId;
+      /* Fetching Ue Cb Info*/
+      GET_CELL_IDX(cellId, cellIdx);
+      gnbDuUeF1apId = duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].gnbDuUeF1apId;
+      gnbCuUeF1apId = duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].gnbCuUeF1apId;
+      ueCb = &duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1];
 
-      /*RRC delivery status*/
-      idx1++;
-      rrcDeliveryReport->protocolIEs.list.array[idx1]->id = ProtocolIE_ID_id_RRCDeliveryStatus;
-      rrcDeliveryReport->protocolIEs.list.array[idx1]->criticality = Criticality_ignore;
-      rrcDeliveryReport->protocolIEs.list.array[idx1]->value.present = RRCDeliveryReportIEs__value_PR_RRCDeliveryStatus;
-      rrcDeliveryReport->protocolIEs.list.array[idx1]->value.choice.RRCDeliveryStatus.delivery_status =\
-      rrcDelivery->rrcDeliveryStatus.deliveryStatus;
-      rrcDeliveryReport->protocolIEs.list.array[idx1]->value.choice.RRCDeliveryStatus.triggering_message =\
-      rrcDelivery->rrcDeliveryStatus.triggeringMessage;
+      ieIdx=0;
+      ueContextModifyRes->protocolIEs.list.array[ieIdx]->id = ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID;
+      ueContextModifyRes->protocolIEs.list.array[ieIdx]->criticality = Criticality_reject;
+      ueContextModifyRes->protocolIEs.list.array[ieIdx]->value.present =\
+      UEContextModificationResponseIEs__value_PR_GNB_CU_UE_F1AP_ID;
+      ueContextModifyRes->protocolIEs.list.array[ieIdx]->value.choice.GNB_CU_UE_F1AP_ID = gnbCuUeF1apId;
 
-      /* SRB ID */ 
-      idx1++;
-      rrcDeliveryReport->protocolIEs.list.array[idx1]->id = ProtocolIE_ID_id_SRBID;
-      rrcDeliveryReport->protocolIEs.list.array[idx1]->criticality = Criticality_ignore;
-      rrcDeliveryReport->protocolIEs.list.array[idx1]->value.present = RRCDeliveryReportIEs__value_PR_SRBID;
-      rrcDeliveryReport->protocolIEs.list.array[idx1]->value.choice.SRBID =  rrcDelivery->srbId;
+      ieIdx++;
+      ueContextModifyRes->protocolIEs.list.array[ieIdx]->id = ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID;
+      ueContextModifyRes->protocolIEs.list.array[ieIdx]->criticality = Criticality_reject;
+      ueContextModifyRes->protocolIEs.list.array[ieIdx]->value.present=\
+      UEContextModificationResponseIEs__value_PR_GNB_DU_UE_F1AP_ID;
+      ueContextModifyRes->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_UE_F1AP_ID = gnbDuUeF1apId;
 
+      ieIdx++;
+      ueContextModifyRes->protocolIEs.list.array[ieIdx]->id = ProtocolIE_ID_id_DRBs_SetupMod_List;
+      ueContextModifyRes->protocolIEs.list.array[ieIdx]->criticality = Criticality_reject;
+      ueContextModifyRes->protocolIEs.list.array[ieIdx]->value.present =\
+      UEContextModificationResponseIEs__value_PR_DRBs_SetupMod_List;
+      if(ueCb->f1UeDb)
+      {
+         ret = BuildDrbSetupModList(&(ueContextModifyRes->protocolIEs.list.array[ieIdx]->\
+                  value.choice.DRBs_SetupMod_List) , &ueCb->f1UeDb->duUeCfg);
+         if(ret != ROK)
+         {
+            DU_LOG( "\nERROR  -->  F1AP : Failed to build drb setupmod List ");
+            break;
+         }
+         freeF1UeDb(ueCb->f1UeDb);
+         ueCb->f1UeDb = NULLP;
+      }
       xer_fprint(stdout, &asn_DEF_F1AP_PDU, f1apMsg);
 
-      /* Encode the RRC DELIVERY REPORT type as APER */
+      /* Encode the F1SetupRequest type as APER */
       memset(encBuf, 0, ENC_BUF_MAX_LEN);
       encBufSize = 0;
-      encRetVal = aper_encode(&asn_DEF_F1AP_PDU, 0, f1apMsg, PrepFinalEncBuf,\
-           encBuf);
+      encRetVal = aper_encode(&asn_DEF_F1AP_PDU, 0, f1apMsg, PrepFinalEncBuf,encBuf);
 
       /* Encode results */
       if(encRetVal.encoded == ENCODE_FAIL)
       {
-        DU_LOG("\nERROR  -->  F1AP : Could not encode RRC Delivery Msg structure (at %s)\n",\
-              encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
-        break;
+         DU_LOG( "\nERROR  -->  F1AP : Could not encode UE Context Setup Request structure (at %s)\n",\
+               encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
+         ret = RFAILED;
+         break;
       }
       else
       {
-        DU_LOG("\nDEBUG   -->  F1AP : Created APER encoded buffer for RRC Delivery Msg \n");
-        for(idx=0; idx< encBufSize; idx++)
-        {
-           printf("%x",encBuf[idx]);
-        }
+         DU_LOG("\nDEBUG   -->  F1AP : Created APER encoded buffer for UE Context Modification Response\n");
+         for(int i=0; i< encBufSize; i++)
+         {
+            printf("%x",encBuf[i]);
+         }
       }
 
-      /* Sending msg */
-      if(SendF1APMsg(DU_APP_MEM_REGION, DU_POOL) != ROK)
+      /* Sending  msg  */
+      if(sendF1APMsg() != ROK)
       {
-        DU_LOG("\nERROR  -->  F1AP : Sending RRC delivery  msg request failed");
-        break;
+         DU_LOG("\nERROR  -->  F1AP : Sending UE Context Setup Res Failed");
+         ret = RFAILED;
+         break;
       }
-      ret = ROK;
       break;
+   }
+   FreeUeContextModResp(f1apMsg);
+   return ret;
+}
+/*******************************************************************
+ *
+ * @brief Deallocating the memory allocated by the aper decoder
+ *          for QOSInfo
+ *
+ * @details
+ *
+ *    Function : freeAperDecodeQosInfo
+ *
+ *    Functionality:  Deallocating the memory allocated for QOSInfo
+ *
+ * @params[in] QoSFlowLevelQoSParameters_t *drbQos
+ *
+ * @return void
+ *
+ * ****************************************************************/
 
-   }while(true);
+void freeAperDecodeQosInfo(QoSFlowLevelQoSParameters_t *drbQos)
+{
+   if(drbQos->qoS_Characteristics.choice.non_Dynamic_5QI != NULLP)
+   {
+      if(drbQos->qoS_Characteristics.choice.non_Dynamic_5QI->averagingWindow!=NULLP)
+      {
+         if(drbQos->qoS_Characteristics.choice.non_Dynamic_5QI->maxDataBurstVolume!=NULLP)
+         {
+            free(drbQos->qoS_Characteristics.choice.non_Dynamic_5QI->maxDataBurstVolume);
+         }
+         free(drbQos->qoS_Characteristics.choice.non_Dynamic_5QI->averagingWindow);
+      }
+      free(drbQos->qoS_Characteristics.choice.non_Dynamic_5QI);
+   }
+}
+/*******************************************************************
+ *
+ * @brief Deallocating the memory allocated by the aper decoder
+ *          for UlTnlInfoforDrb
+ *
+ * @details
+ *
+ *    Function : freeAperDecodeUlTnlInfoforDrbSetupMod 
+ *
+ *    Functionality:  Deallocating memory allocated for UlTnlInfoforDrb
+ *
+ * @params[in] ULUPTNLInformation_ToBeSetup_List_t *ulInfo
+ *
+ * @return void
+ *
+ * ****************************************************************/
+void freeAperDecodeUlTnlInfoforDrbSetupMod(ULUPTNLInformation_ToBeSetup_List_t *ulInfo)
+{
+   uint8_t arrIdx =0;
 
-   freeRrcDeliveryReport(f1apMsg);
-   return ret;
+   if(ulInfo->list.array)
+   {
+      for(arrIdx=0; arrIdx<ulInfo->list.count ; arrIdx++)
+      {
+         if(ulInfo->list.array[arrIdx])
+         {
+            if(ulInfo->list.array[arrIdx]->uLUPTNLInformation.choice.gTPTunnel )
+            {
+               if(ulInfo->list.array[arrIdx]->uLUPTNLInformation.choice.gTPTunnel->transportLayerAddress.buf)
+               {
+                  if(ulInfo->list.array[arrIdx]->uLUPTNLInformation.choice.gTPTunnel->gTP_TEID.buf)
+                  {
+                     free(ulInfo->list.array[arrIdx]->uLUPTNLInformation.choice.gTPTunnel->\
+                           gTP_TEID.buf);
+                  }
+                  free(ulInfo->list.array[arrIdx]->uLUPTNLInformation.choice.gTPTunnel->\
+                        transportLayerAddress.buf);
+               }
+               free(ulInfo->list.array[arrIdx]->uLUPTNLInformation.choice.gTPTunnel);
+            }
+            free(ulInfo->list.array[arrIdx]);
+         }
+      }
+      free(ulInfo->list.array);
+   }
 }
-
 /*******************************************************************
  *
- * @brief Processes cells to be activated
+ * @brief Deallocating the memory allocated by the aper decoder
+ *          for DrbSetupModItem  
  *
  * @details
  *
- *    Function : extractCellsToBeActivated
+ *    Function : freeAperDecodeDrbSetupModItem 
  *
- *    Functionality:
- *      - Processes cells to be activated list received in F1SetupRsp
+ *    Functionality:  Deallocating memory allocated for DrbSetupModItem
  *
- * @params[in] void
- * @return ROK     - success
- *         RFAILED - failure
+ * @params[in] DRBs_ToBeSetupMod_Item_t *drbItem
+ *
+ * @return void
  *
  * ****************************************************************/
 
-uint8_t extractCellsToBeActivated(Cells_to_be_Activated_List_t cellsToActivate)
+void freeAperDecodeDrbSetupModItem(DRBs_ToBeSetupMod_Item_t *drbItem)
 {
-   uint8_t  ret = ROK;
-   uint16_t idx, nci, pci = 0;
-   Cells_to_be_Activated_List_Item_t cell;
+   uint8_t arrIdx =0;
+   SNSSAI_t *snssai =NULLP;
+   Flows_Mapped_To_DRB_List_t *flowMap = NULLP;
 
-   for(idx=0; idx<cellsToActivate.list.count; idx++)
+   drbItem->qoSInformation.present = QoSInformation_PR_choice_extension;
+   switch(drbItem->qoSInformation.present)
    {
-      nci = 0;
-      cell = cellsToActivate.list.array[idx]->value.choice.Cells_to_be_Activated_List_Item;
-      bitStringToInt(&cell.nRCGI.nRCellIdentity, &nci);
+      case QoSInformation_PR_NOTHING:
+         break;
+      case QoSInformation_PR_eUTRANQoS:
+         {
+            if(drbItem->qoSInformation.choice.eUTRANQoS)
+            {
+               free(drbItem->qoSInformation.choice.eUTRANQoS);
+            }
+            break;
+         }
+      case QoSInformation_PR_choice_extension:
+         {
+            if(drbItem->qoSInformation.choice.choice_extension)
+            {
+               freeAperDecodeQosInfo(&drbItem->qoSInformation.choice.choice_extension->value.choice.\
+                     DRB_Information.dRB_QoS);
+               snssai = &drbItem->qoSInformation.choice.choice_extension->value.choice.DRB_Information.sNSSAI;
+               if(snssai->sST.buf)
+               {
+                  free(snssai->sST.buf);
+               }
+               if(snssai->sD)
+               {
+                  if(snssai->sD->buf)
+                  {
+                     free(snssai->sD->buf);
+                  }
+                  free(snssai->sD);
+               }
+
+               flowMap = &drbItem->qoSInformation.choice.choice_extension->value.choice.\
+                         DRB_Information.flows_Mapped_To_DRB_List;
+               if(flowMap->list.array)
+               {
+                  for(arrIdx=0; arrIdx<flowMap->list.count; arrIdx++)
+                  {
+                     if(flowMap->list.array[arrIdx] )
+                     {
+                        freeAperDecodeQosInfo(&flowMap->list.array[arrIdx]->qoSFlowLevelQoSParameters);
+                        free(flowMap->list.array[arrIdx]);
+                     }
+                  }
+                  free(flowMap->list.array);
+               }
+
+               free(drbItem->qoSInformation.choice.choice_extension);
+            }
+            break;
+         }
 
-      if(cell.nRPCI)
-      {
-        pci = *cell.nRPCI;
-      }
-      ret = duProcCellsToBeActivated(cell.nRCGI.pLMN_Identity.buf, nci, pci);
    }
-   return ret;
+   freeAperDecodeUlTnlInfoforDrbSetupMod(&drbItem->uLUPTNLInformation_ToBeSetup_List);
+   if(drbItem->uLConfiguration)
+   {
+      free(drbItem->uLConfiguration);
+   }
 }
-/******************************************************************
-*
-* @brief Processes F1 Setup Response allocated by aper_decoder 
-*
-* @details
-*
-*    Function : freeF1SetupRsp 
-*
-*    Functionality: free F1 Setup Response allocated by aper_decoder 
-*
-* @params[in] F1SetupResponse_t *f1SetRspMsg 
-* @return void 
-*
-* ****************************************************************/
 
-void freeAperDecodeF1SetupRsp(F1SetupResponse_t *f1SetRspMsg)
+/*******************************************************************
+ *
+ * @brief Deallocating the memory allocated by the aper decoder
+ *          for DrbToBeSetupModList
+ *
+ * @details
+ *
+ *    Function : freeAperDecodeDrbToBeSetupModList
+ *
+ *    Functionality:  Deallocating memory allocated for DrbToBeSetupModList
+ *
+ * @params[in] DRBs_ToBeSetupMod_List_t *drbSet
+ *
+ * @return void
+ *
+ * ****************************************************************/
+
+void freeAperDecodeDrbToBeSetupModList(DRBs_ToBeSetupMod_List_t *drbSet)
 {
-   uint8_t ieIdx =0;
    uint8_t arrIdx =0;
-   Cells_to_be_Activated_List_t *cellToActivate =NULLP;
-   RRC_Version_t      *rrcVer =NULLP;
+   struct DRBs_ToBeSetupMod_ItemIEs *drbItemIe;
 
-   if(f1SetRspMsg->protocolIEs.list.array)
+   if(drbSet->list.array)
    {
-      for(ieIdx=0; ieIdx<f1SetRspMsg->protocolIEs.list.count; ieIdx++)
+      for(arrIdx=0; arrIdx<drbSet->list.count ; arrIdx++)
       {
-        if(f1SetRspMsg->protocolIEs.list.array[ieIdx])
-        {
-           switch(f1SetRspMsg->protocolIEs.list.array[ieIdx]->id)
-           {
-              case ProtocolIE_ID_id_Cells_to_be_Activated_List:
-                 {
-                    cellToActivate =
-                       &f1SetRspMsg->protocolIEs.list.array[ieIdx]->value.choice.Cells_to_be_Activated_List;
-                    if(cellToActivate->list.array)
-                    {
-                       for(arrIdx=0; arrIdx<cellToActivate->list.count ; arrIdx++)
-                       {
-                          if(cellToActivate->list.array[arrIdx])
-                          {
-
-                             if(cellToActivate->list.array[0]->value.choice.Cells_to_be_Activated_List_Item.nRCGI.\
-                             pLMN_Identity.buf)
-                             {
-                                if(cellToActivate->list.array[0]->value.choice.\
-                                      Cells_to_be_Activated_List_Item.nRCGI.nRCellIdentity.buf)
-                                {
-                                   free(cellToActivate->list.array[0]->value.choice.\
-                                         Cells_to_be_Activated_List_Item.nRCGI.nRCellIdentity.buf);
-                                }
-
-                                free(cellToActivate->list.array[0]->value.choice.Cells_to_be_Activated_List_Item.\
-                                      nRCGI.pLMN_Identity.buf);
-                             }
-                             free(cellToActivate->list.array[arrIdx]);
-                          }
-                       }
-                       free(cellToActivate->list.array);
-                    }
-                    break;
-                 }
-              case ProtocolIE_ID_id_TransactionID:
-                 {
-                    break;
-                 }
-              case ProtocolIE_ID_id_gNB_CU_Name:
-                 {
-                    free(f1SetRspMsg->protocolIEs.list.array[ieIdx]->value.choice.GNB_CU_Name.buf);
-                    break;
-                 }
-              case ProtocolIE_ID_id_GNB_CU_RRC_Version:
-                 {
-                    rrcVer = &f1SetRspMsg->protocolIEs.list.array[ieIdx]->value.choice.RRC_Version;
-                    if(rrcVer->latest_RRC_Version.buf)
-                    {
-                       if(rrcVer->iE_Extensions)
-                       {
-                          if(rrcVer->iE_Extensions->list.array)
-                          {
-                             if(rrcVer->iE_Extensions->list.array[0])
-                             {
-                                if(rrcVer->iE_Extensions->list.\
-                                      array[0]->extensionValue.choice.Latest_RRC_Version_Enhanced.buf)
-                                {
-                                   free(rrcVer->iE_Extensions->list.\
-                                         array[0]->extensionValue.choice.Latest_RRC_Version_Enhanced.buf);
-                                }
-                                free(rrcVer->iE_Extensions->list.array[0]);
-                             }
-                             free(rrcVer->iE_Extensions->list.array);
-                          }
-                          free(rrcVer->iE_Extensions);
-                       }
-                       free(rrcVer->latest_RRC_Version.buf);
-                    }
-                    break;
-
-                 }
-              default:
-                 {
-                    DU_LOG("\nERROR  -->  DU_APP : Invalid IE received in F1SetupRsp:%ld",
-                          f1SetRspMsg->protocolIEs.list.array[ieIdx]->id);
-                 }
-           }
-           free(f1SetRspMsg->protocolIEs.list.array[ieIdx]);
-        }
+         if(drbSet->list.array[arrIdx] != NULLP)
+         {
+            if(arrIdx == 0)
+            {
+               drbItemIe = (DRBs_ToBeSetupMod_ItemIEs_t *)drbSet->list.array[arrIdx];
+               freeAperDecodeDrbSetupModItem(&(drbItemIe->value.choice.DRBs_ToBeSetupMod_Item));
+            }
+            free(drbSet->list.array[arrIdx]);
+         }
       }
-      free(f1SetRspMsg->protocolIEs.list.array);
+      free(drbSet->list.array);
    }
+
 }
-/******************************************************************
+/*******************************************************************
  *
- * @brief Processes F1 Setup Response sent by CU
+ * @brief Deallocating the memory allocated by the aper decoder
+ *          for UeContextModificationReqMsg
  *
  * @details
  *
- *    Function : procF1SetupRsp
+ *    Function : freeAperDecodeUeContextModificationReqMsg
  *
- *    Functionality: Processes F1 Setup Response sent by CU
+ *    Functionality:  Deallocating memory allocated for
+ *                  UeContextModificationReqMsg
  *
- * @params[in] F1AP_PDU_t ASN decoded F1AP message
- * @return ROK     - success
- *         RFAILED - failure
+ * @params[in] UEContextModificationRequest_t *UeContextModifyReq
+ *
+ * @return void
  *
  * ****************************************************************/
-uint8_t procF1SetupRsp(F1AP_PDU_t *f1apMsg)
+void freeAperDecodeUeContextModificationReqMsg(UEContextModificationRequest_t *UeContextModifyReq )
 {
-   uint8_t ret = ROK;
-   uint16_t idx =0;
-   F1SetupResponse_t *f1SetRspMsg = NULLP;
-   GNB_CU_Name_t     *cuName = NULLP;
-   F1SetupRsp  f1SetRspDb;
-   RRC_Version_t      *rrcVer =NULLP;
-   
-   memset(&f1SetRspDb, 0, sizeof(F1SetupRsp));
-
-   DU_LOG("\nINFO   -->  F1AP : F1 Setup Response received");
-   f1SetRspMsg = &f1apMsg->choice.successfulOutcome->value.choice.F1SetupResponse;
+   uint8_t arrIdx, ieId;
 
-   for(idx=0; idx<f1SetRspMsg->protocolIEs.list.count; idx++)
+   if(UeContextModifyReq->protocolIEs.list.array)
    {
-      switch(f1SetRspMsg->protocolIEs.list.array[idx]->id)
+      for( arrIdx = 0 ; arrIdx<UeContextModifyReq->protocolIEs.list.count ; arrIdx++)
       {
-        case ProtocolIE_ID_id_Cells_to_be_Activated_List:
-           {
-              extractCellsToBeActivated(f1SetRspMsg->protocolIEs.list.array[idx]->\
-                    value.choice.Cells_to_be_Activated_List);
-              break;
-           }
-        case ProtocolIE_ID_id_TransactionID:
-           {
-              f1SetRspDb.transId = f1SetRspMsg->protocolIEs.list.array[idx]->\
-                                   value.choice.TransactionID;
-              break;
-           }
-        case ProtocolIE_ID_id_gNB_CU_Name:
-           {
-              cuName = &f1SetRspMsg->protocolIEs.list.array[idx]->\
-                       value.choice.GNB_CU_Name;
-              strcpy(f1SetRspDb.cuName, (const char*)cuName->buf);
-              break;
-           }
-        case ProtocolIE_ID_id_GNB_CU_RRC_Version:
-           {
-              rrcVer = &f1SetRspMsg->protocolIEs.list.array[idx]->value.choice.RRC_Version;
-              strcpy(f1SetRspDb.rrcVersion.rrcVer,
-                    (const char*)rrcVer->latest_RRC_Version.buf);
-              break;
-           }
-        default:
-           DU_LOG("\nERROR  -->  DU_APP : Invalid IE received in F1SetupRsp:%ld",
-                 f1SetRspMsg->protocolIEs.list.array[idx]->id);
+         if(UeContextModifyReq->protocolIEs.list.array[arrIdx])
+         {
+            ieId = UeContextModifyReq->protocolIEs.list.array[arrIdx]->id;
+            switch(ieId)
+            {
+               case ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID:
+                  break;
+               case ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID:
+                  break;
+               case ProtocolIE_ID_id_DRBs_ToBeSetupMod_List:
+                  {
+                     freeAperDecodeDrbToBeSetupModList(&UeContextModifyReq->protocolIEs.list.array[arrIdx]->\
+                           value.choice.DRBs_ToBeSetupMod_List);
+                     break;
+                  }
+            }
+            free(UeContextModifyReq->protocolIEs.list.array[arrIdx]);
+         }
+      }
+      free(UeContextModifyReq->protocolIEs.list.array);
+   }
+}
+/*******************************************************************
+ *
+ * @brief processing the F1 UeContextModificationReq
+ *
+ * @details
+ *
+ *    Function : procF1UeContextModificationReq
+ *
+ *    Functionality:  processing the F1 UeContextModificationReq
+ *
+ * @params[in] F1AP_PDU_t *f1apMsg
+ *
+ * @return
+ * ****************************************************************/
+uint8_t procF1UeContextModificationReq(F1AP_PDU_t *f1apMsg)
+{
+   UEContextModificationRequest_t *ueContextModifyReq = NULLP;
+   uint8_t  ret = ROK, ieIdx = 0, lcId =0,cellIdx=0, ueIdx=0;
+   DuUeCb   *duUeCb = NULLP;
+   DRBs_ToBeSetupMod_List_t *drbSetupModCfg;
+   uint32_t gnbCuUeF1apId, gnbDuUeF1apId;
+
+   ueContextModifyReq = &f1apMsg->choice.initiatingMessage->value.choice.UEContextModificationRequest;
+   for(ieIdx=0; (ieIdx < ueContextModifyReq->protocolIEs.list.count && ret == ROK); ieIdx++)
+   {
+      switch(ueContextModifyReq->protocolIEs.list.array[ieIdx]->id)
+      {
+         case ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID:
+            {
+               gnbCuUeF1apId = ueContextModifyReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_CU_UE_F1AP_ID;
+               break;
+            }
+         case ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID:
+            {
+               gnbDuUeF1apId = ueContextModifyReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_UE_F1AP_ID;
+               break;
+            }
+         case ProtocolIE_ID_id_DRBs_ToBeSetupMod_List:
+            {
+               for(cellIdx = 0; cellIdx < duCb.numActvCells; cellIdx++)
+               {
+                  for(ueIdx = 0; ueIdx < duCb.numUe; ueIdx++)
+                  {
+                     if((duCb.actvCellLst[cellIdx]->ueCb[ueIdx].gnbDuUeF1apId == gnbDuUeF1apId)&&\
+                           (duCb.actvCellLst[cellIdx]->ueCb[ueIdx].gnbCuUeF1apId == gnbCuUeF1apId))
+                     {
+
+                        duUeCb = &duCb.actvCellLst[cellIdx]->ueCb[ueIdx];
+                        lcId = getDrbLcId(&duUeCb->drbBitMap);
+                        if(lcId != RFAILED)
+                        {
+                           DU_ALLOC(duUeCb->f1UeDb, sizeof(F1UeContextSetupDb));
+                           if(duUeCb->f1UeDb)
+                           {
+                              duUeCb->f1UeDb->actionType = UE_CTXT_MOD;
+                              drbSetupModCfg = &ueContextModifyReq->protocolIEs.list.array[ieIdx]->value.\
+                              choice.DRBs_ToBeSetupMod_List;
+                              if(extractDrbListToSetup(lcId, NULL, drbSetupModCfg ,drbSetupModCfg->list.count, \
+                              &duUeCb->f1UeDb->duUeCfg))
+                              {
+                                 DU_LOG("\nERROR  -->  DU APP : Failed at extractDrbListToSetup()");
+                                 ret = RFAILED;
+                              }
+                           }
+                        }
+                     }
+                     else
+                     {
+                        DU_LOG("\nERROR  -->  DU APP : wrong values of gnbCuUeF1apId and gnbDuUeF1apId ");
+                        ret = RFAILED;
+                     }
+                  }
+               }
+               break;
+            }
       }
-      duProcF1SetupRsp();
    }
-   
-   freeAperDecodeF1SetupRsp(f1SetRspMsg);
-   return ret;
+   if(ret != RFAILED)
+   {
+      ret = duProcUeContextModReq(duUeCb);
+   }
+   freeAperDecodeUeContextModificationReqMsg(ueContextModifyReq);
+   return ret; 
 }
-/*******************************************************************
+/*****************************************************************i
 *
-* @brief free GNB DU config update ack
+* @brief Free memory allocated for UE Context Release Request
 *
 * @details
 *
-*    Function : freeAperDecodeGnbDuAck 
+*    Function : FreeUeContextReleaseReq
 *
-*    Functionality: Processes GNB DU config update ack And
-*                     added free part for the memory allocated by aper_decoder
+*    Functionality:
+*         - Free memory allocated for UE Context Release Request
 *
-* @params[in] F1AP_PDU_t ASN decoded F1AP message
-* @return ROK     - success
-*         RFAILED - failure
+* @params[in] F1AP_PDU_t *f1apMsg
+* @return void 
 *
-* ****************************************************************/
-
-void freeAperDecodeGnbDuAck(GNBDUConfigurationUpdateAcknowledge_t *gnbDuAck)
+* *************************************************************/
+void FreeUeContextReleaseReq(F1AP_PDU_t *f1apMsg)
 {
-   uint8_t ieIdx = 0;
-
-   if(gnbDuAck->protocolIEs.list.array)
+   uint8_t ieIdx;
+   UEContextReleaseRequest_t *ueReleaseReq = NULLP;
+   
+   if(f1apMsg)
    {
-      for(ieIdx=0; ieIdx < gnbDuAck->protocolIEs.list.count; ieIdx++)
+      if(f1apMsg->choice.initiatingMessage)
       {
-        if(gnbDuAck->protocolIEs.list.array[ieIdx])
-        {
-           free(gnbDuAck->protocolIEs.list.array[ieIdx]);
-        }
+         ueReleaseReq =&f1apMsg->choice.initiatingMessage->value.choice.UEContextReleaseRequest;
+         if(ueReleaseReq->protocolIEs.list.array)
+         {
+            for(ieIdx=0 ; ieIdx<ueReleaseReq->protocolIEs.list.count; ieIdx++)
+            {
+               DU_FREE(ueReleaseReq->protocolIEs.list.array[ieIdx], sizeof(UEContextReleaseRequest_t));
+            }
+            DU_FREE(ueReleaseReq->protocolIEs.list.array, ueReleaseReq->protocolIEs.list.size);
+         }
+         DU_FREE(f1apMsg->choice.initiatingMessage, sizeof(InitiatingMessage_t));
       }
-      free(gnbDuAck->protocolIEs.list.array);
+      DU_FREE(f1apMsg, sizeof(F1AP_PDU_t));
    }
+
 }
-/*******************************************************************
+/*****************************************************************i
 *
-* @brief Processes GNB DU config update ack
+* @brief Build and Send UE Context Release Request  
 *
 * @details
 *
-*    Function : procF1GNBDUCfgUpdAck
+*    Function : BuildAndSendUeContextReleaseReq
 *
-*    Functionality: added free part for the memory allocated by aper_decoder
+*    Functionality:
+*         - Build and Send UE Context Release Request 
 *
-* @params[in] F1AP_PDU_t *f1apMsg 
-* @return void 
+* @params[in]
+* @return ROK     - success
+*         RFAILED - failure
 *
-* ****************************************************************/
-uint8_t procF1GNBDUCfgUpdAck(F1AP_PDU_t *f1apMsg)
+* *************************************************************/
+uint8_t BuildAndSendUeContextReleaseReq(uint16_t cellId, uint8_t ueIdx)
+{
+   bool memAllocFail = false;
+   uint8_t ieIdx =0;
+   uint8_t ret = RFAILED;
+   uint16_t cellIdx =0;
+   uint16_t crnti = 0;
+   uint8_t  elementCnt = 0;
+   uint32_t  gnbCuUeF1apId =0;   /* gNB-CU UE F1AP Id */
+   uint32_t  gnbDuUeF1apId =0;   /* gNB-DU UE F1AP Id */
+   asn_enc_rval_t encRetVal; 
+   F1AP_PDU_t *f1apMsg = NULLP;
+   UEContextReleaseRequest_t *ueReleaseReq = NULLP;
+
+   DU_LOG("\nINFO  --> Building the UE Context Release Request");
+   do
+   {
+      DU_ALLOC(f1apMsg, sizeof(F1AP_PDU_t));
+      if(f1apMsg == NULLP)
+      {
+         DU_LOG("\nERROR  -->  F1AP : BuildAndSendUeContextReleaseReq(): Memory allocation failed for f1apMsg");
+         break;
+      }
+
+      f1apMsg->present = F1AP_PDU_PR_initiatingMessage;
+      DU_ALLOC(f1apMsg->choice.initiatingMessage, sizeof(InitiatingMessage_t));
+      if(f1apMsg->choice.initiatingMessage == NULLP)
+      {
+         DU_LOG("\nERROR  -->  F1AP : BuildAndSendUeContextReleaseReq(): Memory allocation failed for\
+         initiatingMessage");   
+         break;
+      }
+      f1apMsg->choice.initiatingMessage->procedureCode = ProcedureCode_id_UEContextReleaseRequest;
+      f1apMsg->choice.initiatingMessage->criticality = Criticality_reject;
+      f1apMsg->choice.initiatingMessage->value.present = \
+      InitiatingMessage__value_PR_UEContextReleaseRequest;
+
+      ueReleaseReq = &f1apMsg->choice.initiatingMessage->value.choice.UEContextReleaseRequest;
+
+      elementCnt = 2;
+
+      ueReleaseReq->protocolIEs.list.count = elementCnt;
+      ueReleaseReq->protocolIEs.list.size = elementCnt * sizeof(UEContextReleaseRequest_t *);
+
+      /* Initialize the F1Setup members */
+      DU_ALLOC(ueReleaseReq->protocolIEs.list.array,ueReleaseReq->protocolIEs.list.size);
+      if(ueReleaseReq->protocolIEs.list.array == NULLP)
+      {
+         DU_LOG("\nERROR  -->  F1AP : BuildAndSendUeContextReleaseReq(): Memory allocation failed for IE array");
+         break;
+      }
+      for(ieIdx=0; ieIdx<elementCnt; ieIdx++)
+      {
+         DU_ALLOC(ueReleaseReq->protocolIEs.list.array[ieIdx],\
+               sizeof(UEContextReleaseRequest_t));
+         if(ueReleaseReq->protocolIEs.list.array[ieIdx] == NULLP)
+         {
+            DU_LOG("\nERROR  -->  F1AP : BuildAndSendUeContextReleaseReq(): Memory allocation failed for IE elements");
+            memAllocFail = true;  
+            break;
+         }
+      }
+      if(memAllocFail == true)
+         break;
+
+      /* Fetching Ue Cb Info*/
+      GET_CELL_IDX(cellId, cellIdx);
+      if(duCb.actvCellLst[cellIdx] == NULLP)
+      {
+         DU_LOG("\nERROR  -->  F1AP : BuildAndSendUeContextReleaseReq(): CellId[%d] does not exist", cellId);
+         break;
+      }
+      else
+      {
+         GET_CRNTI(crnti, ueIdx);
+         if(duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].crnti != crnti)
+         {
+            DU_LOG("\nERROR  -->  F1AP : BuildAndSendUeContextReleaseReq(): crnti[%d] does not exist", crnti);
+            break;
+         }
+         gnbDuUeF1apId = duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].gnbDuUeF1apId;
+         gnbCuUeF1apId = duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].gnbCuUeF1apId;
+      }
+
+      ieIdx=0; 
+      ueReleaseReq->protocolIEs.list.array[ieIdx]->id = ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID; 
+      ueReleaseReq->protocolIEs.list.array[ieIdx]->criticality= Criticality_reject;
+      ueReleaseReq->protocolIEs.list.array[ieIdx]->value.present = \
+      UEContextReleaseRequestIEs__value_PR_GNB_CU_UE_F1AP_ID;
+      ueReleaseReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_CU_UE_F1AP_ID =gnbCuUeF1apId;
+      
+      ieIdx++;
+      ueReleaseReq->protocolIEs.list.array[ieIdx]->id = ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID;
+      ueReleaseReq->protocolIEs.list.array[ieIdx]->criticality= Criticality_reject;
+      ueReleaseReq->protocolIEs.list.array[ieIdx]->value.present =\
+      UEContextReleaseRequestIEs__value_PR_GNB_DU_UE_F1AP_ID;
+      ueReleaseReq->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_UE_F1AP_ID =gnbDuUeF1apId;
+      
+      xer_fprint(stdout, &asn_DEF_F1AP_PDU, f1apMsg);
+
+      /* Encode the F1SetupRequest type as APER */
+      memset(encBuf, 0, ENC_BUF_MAX_LEN);
+      encBufSize = 0;
+      encRetVal = aper_encode(&asn_DEF_F1AP_PDU, 0, f1apMsg, PrepFinalEncBuf, encBuf);
+      /* Encode results */
+      if(encRetVal.encoded == ENCODE_FAIL)
+      {
+         DU_LOG("\nERROR  -->  F1AP : Could not encode UEContextReleaseRequest structure (at %s)\n",\
+               encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
+         break;
+      }
+      else
+      {
+         DU_LOG("\nDEBUG   -->  F1AP : Created APER encoded buffer for UEContextReleaseRequest\n");
+         for(ieIdx=0; ieIdx< encBufSize; ieIdx++)
+         {
+            printf("%x",encBuf[ieIdx]);
+         }
+      }
+
+      /* Sending msg */
+      if(sendF1APMsg() != ROK)
+      {
+         DU_LOG("\nERROR  -->  F1AP : Sending UE Context Release Request failed");
+         break;
+      }
+      ret = ROK;
+      break;
+   }while(true);
+
+   FreeUeContextReleaseReq(f1apMsg);
+   return ret;
+}
+/*****************************************************************i
+ *
+ * @brief Free memory allocated for UE Context Release Complete
+ *
+ * @details
+ *
+ *    Function : FreeUeContextReleaseComplete
+ *
+ *    Functionality:
+ *         - Free memory allocated for UE Context Release Complete
+ *
+ * @params[in] F1AP_PDU_t *f1apMsg
+ * @return void
+ *
+ * *************************************************************/
+void FreeUeContextReleaseComplete(F1AP_PDU_t *f1apMsg)
 {
    uint8_t ieIdx;
-   GNBDUConfigurationUpdateAcknowledge_t *gnbDuAck = NULLP;
-   
-   DU_LOG("\nINFO   -->  F1AP : GNB-DU config update acknowledgment");
-   gnbDuAck = &f1apMsg->choice.successfulOutcome->value.choice.GNBDUConfigurationUpdateAcknowledge;
-   
-   for(ieIdx=0; ieIdx < gnbDuAck->protocolIEs.list.count; ieIdx++)
+   UEContextReleaseComplete_t *ueReleaseComplete = NULLP;
+
+   if(f1apMsg)
    {
-      switch(gnbDuAck->protocolIEs.list.array[ieIdx]->id)
+      if(f1apMsg->choice.successfulOutcome)
       {
-         case ProtocolIE_ID_id_TransactionID:
-           break;
-         case ProtocolIE_ID_id_Cells_to_be_Activated_List:
-           break;
-         default :
-            DU_LOG("\nERROR  -->  F1AP: Invalid IE Received: %ld, at procF1GNBDUCfgUpdAck()", \
-           gnbDuAck->protocolIEs.list.array[ieIdx]->id);
-           break;
+         ueReleaseComplete =&f1apMsg->choice.successfulOutcome->value.choice.UEContextReleaseComplete;
+         if(ueReleaseComplete->protocolIEs.list.array)
+         {
+            for(ieIdx=0 ; ieIdx<ueReleaseComplete->protocolIEs.list.count; ieIdx++)
+            {
+               DU_FREE(ueReleaseComplete->protocolIEs.list.array[ieIdx], sizeof(UEContextReleaseComplete_t));
+            }
+            DU_FREE(ueReleaseComplete->protocolIEs.list.array, ueReleaseComplete->protocolIEs.list.size);
+         }
+         DU_FREE(f1apMsg->choice.successfulOutcome, sizeof(SuccessfulOutcome_t));
+      }
+      DU_FREE(f1apMsg, sizeof(F1AP_PDU_t));
+   }
+
+}
+/*****************************************************************i
+ *
+ * @brief Build and Send UE Context Release Complete
+ *
+ * @details
+ *
+ *    Function : BuildAndSendUeContextReleaseComplete
+ *
+ *    Functionality:
+ *         - Build and Send UE Context Release Complete
+ *
+ * @params[in]  cellId,  gnbCuUeF1apId, gnbDuUeF1apId
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * *************************************************************/
+uint8_t BuildAndSendUeContextReleaseComplete(uint16_t cellId, uint32_t gnbCuUeF1apId, uint32_t gnbDuUeF1apId)
+{
+   bool memAllocFail = false;
+   uint8_t ieIdx =0, ret = RFAILED, elementCnt = 0;
+   asn_enc_rval_t encRetVal;
+   F1AP_PDU_t *f1apMsg = NULLP;
+   UEContextReleaseComplete_t *ueReleaseComplete = NULLP;
+
+   DU_LOG("\nINFO  --> Building the UE Context Release Complete");
+   do
+   {
+      DU_ALLOC(f1apMsg, sizeof(F1AP_PDU_t));
+      if(f1apMsg == NULLP)
+      {
+         DU_LOG("\nERROR  -->  F1AP : BuildAndSendUeContextReleaseComplete(): Memory allocation failed for f1apMsg");
+         break;
+      }
+
+      f1apMsg->present = F1AP_PDU_PR_successfulOutcome;
+      DU_ALLOC(f1apMsg->choice.successfulOutcome, sizeof(SuccessfulOutcome_t));
+      if(f1apMsg->choice.successfulOutcome == NULLP)
+      {
+         DU_LOG("\nERROR  -->  F1AP : BuildAndSendUeContextReleaseComplete(): Memory allocation failed for\
+               successfulOutcome");
+         break;
+      }
+      f1apMsg->choice.successfulOutcome->procedureCode = ProcedureCode_id_UEContextRelease;
+      f1apMsg->choice.successfulOutcome->criticality = Criticality_reject;
+      f1apMsg->choice.successfulOutcome->value.present = \
+      SuccessfulOutcome__value_PR_UEContextReleaseComplete;
+
+      ueReleaseComplete = &f1apMsg->choice.successfulOutcome->value.choice.UEContextReleaseComplete;
+
+      elementCnt = 2;
+      ueReleaseComplete->protocolIEs.list.count = elementCnt;
+      ueReleaseComplete->protocolIEs.list.size = elementCnt * sizeof(UEContextReleaseComplete_t *);
+
+      /* Initialize the UE Release Complete members */
+      DU_ALLOC(ueReleaseComplete->protocolIEs.list.array,ueReleaseComplete->protocolIEs.list.size);
+      if(ueReleaseComplete->protocolIEs.list.array == NULLP)
+      {
+         DU_LOG("\nERROR  -->  F1AP : BuildAndSendUeContextReleaseComplete(): Memory allocation failed for IE array");
+         break;
+      }
+      for(ieIdx=0; ieIdx<elementCnt; ieIdx++)
+      {
+         DU_ALLOC(ueReleaseComplete->protocolIEs.list.array[ieIdx],\
+               sizeof(UEContextReleaseComplete_t));
+         if(ueReleaseComplete->protocolIEs.list.array[ieIdx] == NULLP)
+         {
+            DU_LOG("\nERROR  -->  F1AP : BuildAndSendUeContextReleaseComplete(): Memory allocation failed for IE\
+            elements");
+            memAllocFail = true;
+            break;
+         }
+      }
+      if(memAllocFail == true)
+         break;
+
+
+      ieIdx=0;
+      ueReleaseComplete->protocolIEs.list.array[ieIdx]->id = ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID;
+      ueReleaseComplete->protocolIEs.list.array[ieIdx]->criticality= Criticality_reject;
+      ueReleaseComplete->protocolIEs.list.array[ieIdx]->value.present = \
+      UEContextReleaseCompleteIEs__value_PR_GNB_CU_UE_F1AP_ID;
+      ueReleaseComplete->protocolIEs.list.array[ieIdx]->value.choice.GNB_CU_UE_F1AP_ID =gnbCuUeF1apId;
+
+      ieIdx++;
+      ueReleaseComplete->protocolIEs.list.array[ieIdx]->id = ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID;
+      ueReleaseComplete->protocolIEs.list.array[ieIdx]->criticality= Criticality_reject;
+      ueReleaseComplete->protocolIEs.list.array[ieIdx]->value.present =\
+      UEContextReleaseCompleteIEs__value_PR_GNB_DU_UE_F1AP_ID;
+      ueReleaseComplete->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_UE_F1AP_ID =gnbDuUeF1apId;
+
+      xer_fprint(stdout, &asn_DEF_F1AP_PDU, f1apMsg);
+
+      /* Encode the F1SetupComplete type as APER */
+      memset(encBuf, 0, ENC_BUF_MAX_LEN);
+      encBufSize = 0;
+      encRetVal = aper_encode(&asn_DEF_F1AP_PDU, 0, f1apMsg, PrepFinalEncBuf, encBuf);
+      /* Encode results */
+      if(encRetVal.encoded == ENCODE_FAIL)
+      {
+         DU_LOG("\nERROR  -->  F1AP : Could not encode UEContextReleaseComplete structure (at %s)\n",\
+               encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
+         break;
+      }
+      else
+      {
+         DU_LOG("\nDEBUG   -->  F1AP : Created APER encoded buffer for UEContextReleaseComplete\n");
+         for(ieIdx=0; ieIdx< encBufSize; ieIdx++)
+         {
+            printf("%x",encBuf[ieIdx]);
+         }
+      }
+
+      /* Sending msg */
+      if(sendF1APMsg() != ROK)
+      {
+         DU_LOG("\nERROR  -->  F1AP : Sending UE Context Release Complete failed");
+         break;
       }
-   }
-   duProcGnbDuCfgUpdAckMsg();
-#if 0
-   if(BuildAndSendF1ResetReq() != ROK)
+      ret = ROK;
+      break;
+   }while(true);
+   
+   if(ret == ROK)
    {
-      return RFAILED;
+      duCb.actvCellLst[cellId-1]->cellStatus = DELETION_IN_PROGRESS;
+      ret = duSendCellDeletReq(cellId);
+      if(ret != ROK)
+      {
+         DU_LOG("\nERROR  -->  F1AP: BuildAndSendUeContextReleaseComplete(): Failed to process cell\
+               Delete req for CellId");
+      }
    }
-#endif
+   FreeUeContextReleaseComplete(f1apMsg);
+   return ret;
 
-   freeAperDecodeGnbDuAck(gnbDuAck);
-   return ROK;
 }
-/******************************************************************
+
+/*******************************************************************
 *
-* @brief free DL RRC Message Transfer allocated by aper_decoder 
+* @brief added free part for the memory allocated by aper_decoder 
 *
 * @details
 *
-*    Function : freeAperDecodef1DlRrcMsg 
+*    Function : freeAperDecodeUeContextReleaseCommand 
 *
-*    Functionality: free DL RRC Message Transfer allocated by aper_decoder 
+*    Functionality: added free part for the memory allocated by aper_decoder
 *
-* @params[in] DLRRCMessageTransfer_t *f1DlRrcMsg 
-* @return ROK     - success
-*         RFAILED - failure
+* @params[in] F1AP_PDU_t *f1apMsg
+* @return void
 *
 * ****************************************************************/
-
-void freeAperDecodef1DlRrcMsg(DLRRCMessageTransfer_t *f1DlRrcMsg)
+void freeAperDecodeUeContextReleaseCommand(F1AP_PDU_t *f1apMsg)
 {
-   uint8_t ieIdx =0;
-   RRCContainer_t *rrcContainer = NULLP;
+   uint8_t ieIdx=0;
+   UEContextReleaseCommand_t *ueContextReleaseCommand = NULLP;
 
-   if(f1DlRrcMsg->protocolIEs.list.array)
+   ueContextReleaseCommand = &f1apMsg->choice.initiatingMessage->value.choice.UEContextReleaseCommand;
+   
+   if(ueContextReleaseCommand->protocolIEs.list.array)
    {
-      for(ieIdx=0; ieIdx<f1DlRrcMsg->protocolIEs.list.count; ieIdx++)
+      for(ieIdx=0; ieIdx < ueContextReleaseCommand->protocolIEs.list.count; ieIdx++)
       {
-        if(f1DlRrcMsg->protocolIEs.list.array[ieIdx])
-        {
-           switch(f1DlRrcMsg->protocolIEs.list.array[ieIdx]->id)
-           {
-              case ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID:
-                 break;
-              case ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID:
-                 break;
-              case ProtocolIE_ID_id_SRBID:
-                 break;
-              case ProtocolIE_ID_id_RRCContainer:
-                 {
-                    rrcContainer =&f1DlRrcMsg->protocolIEs.list.array[ieIdx]->value.choice.RRCContainer;
-                    free(rrcContainer->buf);
-                 }
-              case ProtocolIE_ID_id_ExecuteDuplication:
-                 break;
-              case ProtocolIE_ID_id_RRCDeliveryStatusRequest:
-                 break;
-                 break;
-           }
-           free(f1DlRrcMsg->protocolIEs.list.array[ieIdx]);
-        }
+         if(ueContextReleaseCommand->protocolIEs.list.array[ieIdx])
+         {
+            switch(ueContextReleaseCommand->protocolIEs.list.array[ieIdx]->id)
+            {
+               case ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID:
+                  break;
+               case ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID:
+                  break;
+               case ProtocolIE_ID_id_Cause:
+                  break;
+               case ProtocolIE_ID_id_RRCContainer:
+               {
+                  if(ueContextReleaseCommand->protocolIEs.list.array[ieIdx]->value.choice.RRCContainer.buf)
+                  {
+                     free(ueContextReleaseCommand->protocolIEs.list.array[ieIdx]->value.choice.RRCContainer.buf);
+                  }
+                  break;
+               }
+               default :
+                  DU_LOG("\nERROR  -->  F1AP: freeAperDecodeUeContextReleaseCommand():Invalid IE Received: %ld"\
+                       ,ueContextReleaseCommand->protocolIEs.list.array[ieIdx]->id);
+                  break;
+            }
+         }
+         free(ueContextReleaseCommand->protocolIEs.list.array[ieIdx]);
       }
-      free(f1DlRrcMsg->protocolIEs.list.array);
+      free(ueContextReleaseCommand->protocolIEs.list.array);
    }
 }
-/******************************************************************
- *
- * @brief Processes DL RRC Message Transfer  sent by CU
- *
- * @details
- *
- *    Function : procF1DlRrcMsgTrans
- *
- *    Functionality: Processes DL RRC Message Transfer sent by CU
- *
- * @params[in] F1AP_PDU_t ASN decoded F1AP message
- * @return ROK     - success
- *         RFAILED - failure
- *
- * ****************************************************************/
-uint8_t procF1DlRrcMsgTrans(F1AP_PDU_t *f1apMsg)
+/*******************************************************************
+*
+* @brief processing of UE Context Release Command
+*
+* @details
+*
+*    Function : procF1UeContextReleaseCommand 
+*
+*    Functionality: processing of UE Context Release Command
+*
+* @params[in] F1AP_PDU_t *f1apMsg
+* @return void
+*
+* ****************************************************************/
+uint8_t procF1UeContextReleaseCommand(F1AP_PDU_t *f1apMsg)
 {
-   uint8_t  idx, ret;
-   DLRRCMessageTransfer_t *f1DlRrcMsg = NULLP;
-   F1DlRrcMsg dlMsg;
-   memset(&dlMsg, 0, sizeof(F1DlRrcMsg));
-
-   DU_LOG("\nINFO   -->  DU_APP : DL RRC message transfer Recevied");
-   f1DlRrcMsg = &f1apMsg->choice.initiatingMessage->value.choice.DLRRCMessageTransfer;
+   uint8_t  ieIdx=0, ret=ROK, ueIdx=0;
+   uint16_t cellIdx =0;
+   bool ueIdxFound;
+   uint32_t gnbCuUeF1apId=0, gnbDuUeF1apId=0;
+   DuUeCb   *duUeCb = NULLP;
+   UEContextReleaseCommand_t *ueContextReleaseCommand = NULLP;
 
-   ret = ROK;
+   ueContextReleaseCommand = &f1apMsg->choice.initiatingMessage->value.choice.UEContextReleaseCommand;
 
-   for(idx=0; idx<f1DlRrcMsg->protocolIEs.list.count; idx++)
+   if(ueContextReleaseCommand->protocolIEs.list.array)
    {
-      switch(f1DlRrcMsg->protocolIEs.list.array[idx]->id)
+      for(ieIdx=0; ieIdx < ueContextReleaseCommand->protocolIEs.list.count; ieIdx++)
       {
-        case ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID:
-           {
-              dlMsg.gnbCuUeF1apId = f1DlRrcMsg->protocolIEs.list.array[idx]->value.choice.GNB_CU_UE_F1AP_ID;
-              break;
-           }
-        case ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID:
-           {
-              dlMsg.gnbDuUeF1apId = f1DlRrcMsg->protocolIEs.list.array[idx]->value.choice.GNB_DU_UE_F1AP_ID;
-              break;
-           }
-        case ProtocolIE_ID_id_SRBID:
-           {
-              dlMsg.srbId = f1DlRrcMsg->protocolIEs.list.array[idx]->value.choice.SRBID;
-              break;
-           }
-        case ProtocolIE_ID_id_ExecuteDuplication:
-           dlMsg.execDup = true;
-           break;
+         if(ueContextReleaseCommand->protocolIEs.list.array[ieIdx])
+         {
+            switch(ueContextReleaseCommand->protocolIEs.list.array[ieIdx]->id)
+            {
+               case ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID:
+                  {
+                     gnbCuUeF1apId= ueContextReleaseCommand->protocolIEs.list.array[ieIdx]->\
+                                    value.choice.GNB_CU_UE_F1AP_ID;
+                     break;
+                  }
 
-        case ProtocolIE_ID_id_RRCContainer:
-           {
-              if(f1DlRrcMsg->protocolIEs.list.array[idx]->value.choice.RRCContainer.size > 0)
-              {
-                 dlMsg.rrcMsgSize = f1DlRrcMsg->protocolIEs.list.array[idx]->value.choice.RRCContainer.size;
-                 DU_ALLOC(dlMsg.rrcMsgPdu, dlMsg.rrcMsgSize);
-                 if(dlMsg.rrcMsgPdu)
-                 {
-                    memcpy(dlMsg.rrcMsgPdu, f1DlRrcMsg->protocolIEs.list.array[idx]->value.choice.RRCContainer.buf,\
-                       dlMsg.rrcMsgSize);
-                 }
-                 else
-                 {
-                    DU_LOG("\nERROR  -->  DU APP : Memory alloc Failed at RRC Container at procF1DlRrcMsgTrans()");
-                     return RFAILED;
-                 }
-              }
-              else
-              {
-                 DU_LOG("\nERROR  -->  DU_APP : RRC Container Size is invalid:%ld",\
-                 f1DlRrcMsg->protocolIEs.list.array[idx]->value.choice.RRCContainer.size);
-                 return RFAILED;
-              }
-              break;
-           }
-         case ProtocolIE_ID_id_RRCDeliveryStatusRequest:
-           {
-              dlMsg.deliveryStatRpt = true;
-              break;
-           }
-        default:
-           DU_LOG("\nERROR  -->  DU_APP : Invalid IE received in DL RRC Msg Transfer:%ld",
-                 f1DlRrcMsg->protocolIEs.list.array[idx]->id);
-      }
-   }
+               case ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID:
+                  {
+                     gnbDuUeF1apId = ueContextReleaseCommand->protocolIEs.list.array[ieIdx]->\
+                                     value.choice.GNB_DU_UE_F1AP_ID;
+                     break;
+                  }
 
-   ret = duProcDlRrcMsg(&dlMsg);
+               case ProtocolIE_ID_id_Cause:
+                  {
+                     break;
+                  }
 
-   freeAperDecodef1DlRrcMsg(f1DlRrcMsg);
+               case ProtocolIE_ID_id_RRCContainer:
+                  {
+                     for(cellIdx = 0; cellIdx < duCb.numActvCells; cellIdx++)
+                     {
+                        for(ueIdx = 0; ueIdx < duCb.numUe; ueIdx++)
+                        {
+                           if((duCb.actvCellLst[cellIdx]->ueCb[ueIdx].gnbDuUeF1apId == gnbDuUeF1apId)&&\
+                                 (duCb.actvCellLst[cellIdx]->ueCb[ueIdx].gnbCuUeF1apId == gnbCuUeF1apId))
+                           {
+                              duUeCb = &duCb.actvCellLst[cellIdx]->ueCb[ueIdx];
+                              DU_ALLOC(duUeCb->f1UeDb, sizeof(F1UeContextSetupDb));
+                              if(duUeCb->f1UeDb)
+                              {
+                                 memset(duUeCb->f1UeDb, 0, sizeof(F1UeContextSetupDb));
+                                 duUeCb->f1UeDb->actionType = UE_CTXT_RELEASE;
+                                 duUeCb->f1UeDb->cellIdx = cellIdx;
+                                 /* Filling Dl RRC Msg Info */
+                                 DU_ALLOC_SHRABL_BUF(duUeCb->f1UeDb->dlRrcMsg, sizeof(F1DlRrcMsg));
+                                 if(!duUeCb->f1UeDb->dlRrcMsg)
+                                 {
+                                    DU_LOG("\nERROR  -->  DU APP : procF1UeContextReleaseCommand(): \
+                                    Memory allocation failed ");
+                                    ret = RFAILED;
+                                 }
+                                 else
+                                 {
+                                    duUeCb->f1UeDb->dlRrcMsgPres = true;
+                                    memset(duUeCb->f1UeDb->dlRrcMsg, 0, sizeof(F1DlRrcMsg));
+                                    ret = extractDlRrcMsg(gnbDuUeF1apId, gnbCuUeF1apId, duUeCb->f1UeDb->dlRrcMsg,\
+                                          &ueContextReleaseCommand->protocolIEs.list.array[ieIdx]->\
+                                          value.choice.RRCContainer);
+                                 }
+
+                              }
+                              else
+                              {
+                                 DU_LOG("\nERROR  -->  DU APP : procF1UeContextReleaseCommand(): \
+                                 Memory allocation failed ");
+                                 ret = RFAILED;
+
+                              }
+
+                              ueIdxFound = true;
+                              break;
+                           }
+                        }
+                        if(ueIdxFound == true)
+                        {
+                           break;
+                        }
+                     }
+                     if(!ueIdxFound)
+                     {
+                        DU_LOG("\nERROR  -->  F1AP: DuUeCb is not found at procF1UeContextSetupReq()");
+                        ret = RFAILED;
+                     }
+
+
+                     break;
+                  }
+               default :
+                  DU_LOG("\nERROR  -->  F1AP: freeAperDecodeUeContextReleaseCommand():Invalid IE Received: %ld"\
+                        ,ueContextReleaseCommand->protocolIEs.list.array[ieIdx]->id);
+                  break;
+            }
+         }
+      }
+   }
+   if(ret != RFAILED)
+   {
+      duProcUeContextReleaseCommand(duUeCb);
+   }
+   freeAperDecodeUeContextReleaseCommand(f1apMsg);
    return ret;
 }
-
-/*****************************************************************i
+/**************************************************************
  *
  * @brief Handles received F1AP message and sends back response  
  *
@@ -10793,74 +13303,84 @@ void F1APMsgHdlr(Buffer *mBuf)
    switch(f1apMsg->present)
    {
       case F1AP_PDU_PR_successfulOutcome:
-        {
-           switch(f1apMsg->choice.successfulOutcome->value.present)
-           {
-              case SuccessfulOutcome__value_PR_ResetAcknowledge:
-                 {
-                    DU_LOG("\nINFO   -->  F1AP : F1ResetAcknowledge is received successfully ");
-                    break;
-                 }
-              case SuccessfulOutcome__value_PR_F1SetupResponse:
-                 {                             
+         {
+            switch(f1apMsg->choice.successfulOutcome->value.present)
+            {
+               case SuccessfulOutcome__value_PR_ResetAcknowledge:
+                  {
+                     DU_LOG("\nINFO   -->  F1AP : F1ResetAcknowledge is received successfully ");
+                     break;
+                  }
+               case SuccessfulOutcome__value_PR_F1SetupResponse:
+                  {                            
 #ifndef ODU_TEST_STUB
-                    procF1SetupRsp(f1apMsg);
+                     procF1SetupRsp(f1apMsg);
 #endif
-                    break;
-                 }
+                     break;
+                  }
 
-              case SuccessfulOutcome__value_PR_GNBDUConfigurationUpdateAcknowledge:
-                 {
-                    procF1GNBDUCfgUpdAck(f1apMsg);
-                    break;
-                 }
+               case SuccessfulOutcome__value_PR_GNBDUConfigurationUpdateAcknowledge:
+                  {
+                     procF1GNBDUCfgUpdAck(f1apMsg);
+                     break;
+                  }
 
-              default:
-                 {
-                    DU_LOG("\nERROR  -->  F1AP : Invalid type of SuccessfulOutcome__value_PR_ResetAcknowledge [%d]",\
-                    f1apMsg->choice.successfulOutcome->value.present);
-                    return;
-                 }
-           }/* End of switch(successfulOutcome) */
-           free(f1apMsg->choice.successfulOutcome);
-           break;
-        }
+               default:
+                  {
+                     DU_LOG("\nERROR  -->  F1AP : Invalid type of SuccessfulOutcome__value_PR_ResetAcknowledge [%d]",\
+                           f1apMsg->choice.successfulOutcome->value.present);
+                     return;
+                  }
+            }/* End of switch(successfulOutcome) */
+            free(f1apMsg->choice.successfulOutcome);
+            break;
+         }
       case F1AP_PDU_PR_initiatingMessage:
-        {
-           switch(f1apMsg->choice.initiatingMessage->value.present)
-           {
-              case InitiatingMessage__value_PR_Reset:
-                 {
-                    procF1ResetReq(f1apMsg);
-                    break;
-                 }
-              case InitiatingMessage__value_PR_DLRRCMessageTransfer:
-                 {
-                    procF1DlRrcMsgTrans(f1apMsg);
-                    break;
-                 }
-              case InitiatingMessage__value_PR_UEContextSetupRequest:
-                 {
-                    procF1UeContextSetupReq(f1apMsg);
-                    break;
-                 }
-              default:
-                 {
-                    DU_LOG("\nERROR  -->  F1AP : Invalid type of F1AP_PDU_PR_initiatingMessage [%d]",
-                          f1apMsg->choice.initiatingMessage->value.present);
-                    return;
-                 }
-           }/* End of switch(initiatingMessage) */
-           free(f1apMsg->choice.initiatingMessage);
-           break;
-        }
+         {
+            switch(f1apMsg->choice.initiatingMessage->value.present)
+            {
+               case InitiatingMessage__value_PR_Reset:
+                  {
+                     procF1ResetReq(f1apMsg);
+                     break;
+                  }
+               case InitiatingMessage__value_PR_DLRRCMessageTransfer:
+                  {
+                     procF1DlRrcMsgTrans(f1apMsg);
+                     break;
+                  }
+               case InitiatingMessage__value_PR_UEContextSetupRequest:
+                  {
+                     procF1UeContextSetupReq(f1apMsg);
+                     break;
+                  }
+               case InitiatingMessage__value_PR_UEContextModificationRequest:
+                  {
+                     procF1UeContextModificationReq(f1apMsg);
+                     break;
+                  }
+               case InitiatingMessage__value_PR_UEContextReleaseCommand:
+                  {
+                      procF1UeContextReleaseCommand(f1apMsg);
+                      break;
+                  }
+               default:
+                  {
+                     DU_LOG("\nERROR  -->  F1AP : Invalid type of F1AP_PDU_PR_initiatingMessage [%d]",
+                           f1apMsg->choice.initiatingMessage->value.present);
+                     return;
+                  }
+            }/* End of switch(initiatingMessage) */
+            free(f1apMsg->choice.initiatingMessage);
+            break;
+         }
 
       default:
-        {
-           DU_LOG("\nERROR  -->  F1AP : Invalid type of f1apMsg->present [%d]",f1apMsg->present);
-           return;
-        }
-        free(f1apMsg);
+         {
+            DU_LOG("\nERROR  -->  F1AP : Invalid type of f1apMsg->present [%d]",f1apMsg->present);
+            return;
+         }
+         free(f1apMsg);
 
    }/* End of switch(f1apMsg->present) */