Memory handling fixes [Issue-ID: ODUHIGH-337]
[o-du/l2.git] / src / 5gnrmac / lwr_mac_fsm.c
index 3345227..4fea616 100644 (file)
 #include "mac_sch_interface.h"
 #include "lwr_mac_upr_inf.h"
 #include "mac.h"
-#include "lwr_mac_phy.h"
 #include "lwr_mac.h"
 #ifdef INTEL_FAPI
 #include "fapi.h"
+#include "fapi_vendor_extension.h"
+#endif
+#ifdef INTEL_WLS_MEM
+#include "wls_lib.h"
 #endif
 #include "lwr_mac_fsm.h"
+#include "lwr_mac_phy.h"
 #include "mac_utils.h"
 
 #define MIB_SFN_BITMASK 0xFC
 #define PDU_PRESENT 1
 #define SET_MSG_LEN(x, size) x += size
 
-extern void fapiMacConfigRsp(uint16_t cellId);
-extern uint8_t UnrestrictedSetNcsTable[MAX_ZERO_CORR_CFG_IDX];
-
 /* Global variables */
-uint8_t slotIndIdx;
-uint16_t sendTxDataReq(SlotIndInfo currTimingInfo, DlSchedInfo *dlInfo);
+LwrMacCb lwrMacCb;
+
+uint8_t UnrestrictedSetNcsTable[MAX_ZERO_CORR_CFG_IDX];
+void fapiMacConfigRsp(uint16_t cellId);
+uint16_t sendTxDataReq(SlotIndInfo currTimingInfo, DlSchedInfo *dlInfo, p_fapi_api_queue_elem_t prevElem);
+uint16_t fillUlTtiReq(SlotIndInfo currTimingInfo, p_fapi_api_queue_elem_t prevElem);
 
-void lwrMacInit()
+void lwrMacLayerInit(Region region, Pool pool)
 {
-#ifdef INTEL_WLS
-   uint8_t  idx;
+#ifdef INTEL_WLS_MEM
+   uint8_t idx;
+#endif
 
+   memset(&lwrMacCb, 0, sizeof(LwrMacCb));
+   lwrMacCb.region = region;
+   lwrMacCb.pool = pool;
+   lwrMacCb.clCfgDone = TRUE;
+   lwrMacCb.numCell = 0;
+   lwrMacCb.phyState = PHY_STATE_IDLE;
+
+#ifdef INTEL_WLS_MEM
    /* Initializing WLS free mem list */
-   slotIndIdx = 1;
+   lwrMacCb.phySlotIndCntr = 1;
    for(idx = 0; idx < WLS_MEM_FREE_PRD; idx++)
    {
       cmLListInit(&wlsBlockToFreeList[idx]);
@@ -82,7 +96,7 @@ void lwrMacInit()
  * ****************************************************************/
 uint8_t lwr_mac_procInvalidEvt(void *msg)
 {
-   printf("\nLWR_MAC: Error Indication Event[%d] received in state [%d]", lwrMacCb.event, lwrMacCb.phyState);
+   DU_LOG("\nERROR  -->  LWR_MAC: Error Indication Event[%d] received in state [%d]", lwrMacCb.event, lwrMacCb.phyState);
    return ROK;
 }
 
@@ -105,7 +119,7 @@ uint8_t lwr_mac_procInvalidEvt(void *msg)
  * @return void
  *
  * ****************************************************************/
-PUBLIC void fillMsgHeader(fapi_msg_t *hdr, uint16_t msgType, uint16_t msgLen)
+void fillMsgHeader(fapi_msg_t *hdr, uint16_t msgType, uint16_t msgLen)
 {
    memset(hdr, 0, sizeof(fapi_msg_t));
    hdr->msg_id = msgType;
@@ -131,8 +145,8 @@ PUBLIC void fillMsgHeader(fapi_msg_t *hdr, uint16_t msgType, uint16_t msgLen)
  * @return void
  *
  * ****************************************************************/
-PUBLIC void fillTlvs(fapi_uint32_tlv_t *tlv, uint16_t tag, uint16_t length,
-      uint16_t value, uint32_t *msgLen)
+void fillTlvs(fapi_uint32_tlv_t *tlv, uint16_t tag, uint16_t length,
+      uint32_t value, uint32_t *msgLen)
 {
    tlv->tl.tag    = tag;
    tlv->tl.length = length;
@@ -156,7 +170,7 @@ PUBLIC void fillTlvs(fapi_uint32_tlv_t *tlv, uint16_t tag, uint16_t length,
  * @return void
  *
  ********************************************************************/
-PUBLIC void fillCyclicPrefix(uint8_t value, ClCellParam **cellPtr)
+void fillCyclicPrefix(uint8_t value, ClCellParam **cellPtr)
 {
    if((value & FAPI_NORMAL_CYCLIC_PREFIX_MASK) == FAPI_NORMAL_CYCLIC_PREFIX_MASK)
    {
@@ -190,7 +204,7 @@ PUBLIC void fillCyclicPrefix(uint8_t value, ClCellParam **cellPtr)
  *
  * ****************************************************************/
 
-PUBLIC void fillSubcarrierSpaceDl(uint8_t value, ClCellParam **cellPtr)
+void fillSubcarrierSpaceDl(uint8_t value, ClCellParam **cellPtr)
 {
    if((value & FAPI_15KHZ_MASK) == FAPI_15KHZ_MASK)
    {
@@ -232,7 +246,7 @@ PUBLIC void fillSubcarrierSpaceDl(uint8_t value, ClCellParam **cellPtr)
  *
  * ****************************************************************/
 
-PUBLIC void fillBandwidthDl(uint16_t value, ClCellParam **cellPtr)
+void fillBandwidthDl(uint16_t value, ClCellParam **cellPtr)
 {
    if((value & FAPI_5MHZ_BW_MASK) == FAPI_5MHZ_BW_MASK)
    {
@@ -310,7 +324,7 @@ PUBLIC void fillBandwidthDl(uint16_t value, ClCellParam **cellPtr)
  *
  * ****************************************************************/
 
-PUBLIC void fillSubcarrierSpaceUl(uint8_t value, ClCellParam **cellPtr)
+void fillSubcarrierSpaceUl(uint8_t value, ClCellParam **cellPtr)
 {
    if((value & FAPI_15KHZ_MASK) == FAPI_15KHZ_MASK)
    {
@@ -355,7 +369,7 @@ PUBLIC void fillSubcarrierSpaceUl(uint8_t value, ClCellParam **cellPtr)
  *
  * ****************************************************************/
 
-PUBLIC void fillBandwidthUl(uint16_t value, ClCellParam **cellPtr)
+void fillBandwidthUl(uint16_t value, ClCellParam **cellPtr)
 {
    if((value & FAPI_5MHZ_BW_MASK) == FAPI_5MHZ_BW_MASK)
    {
@@ -433,7 +447,7 @@ PUBLIC void fillBandwidthUl(uint16_t value, ClCellParam **cellPtr)
  *
  * ****************************************************************/
 
-PUBLIC void fillCCEmaping(uint8_t value,  ClCellParam **cellPtr)
+void fillCCEmaping(uint8_t value,  ClCellParam **cellPtr)
 {
    if ((value & FAPI_CCE_MAPPING_INTERLEAVED_MASK) == FAPI_CCE_MAPPING_INTERLEAVED_MASK)
    {
@@ -468,7 +482,7 @@ PUBLIC void fillCCEmaping(uint8_t value,  ClCellParam **cellPtr)
  *
  * ****************************************************************/
 
-PUBLIC void fillPucchFormat(uint8_t value, ClCellParam **cellPtr)
+void fillPucchFormat(uint8_t value, ClCellParam **cellPtr)
 {
    if((value & FAPI_FORMAT_0_MASK) == FAPI_FORMAT_0_MASK)
    {
@@ -514,7 +528,7 @@ PUBLIC void fillPucchFormat(uint8_t value, ClCellParam **cellPtr)
  *
  * ****************************************************************/
 
-PUBLIC void fillPdschMappingType(uint8_t value, ClCellParam **cellPtr)
+void fillPdschMappingType(uint8_t value, ClCellParam **cellPtr)
 {
    if((value & FAPI_PDSCH_MAPPING_TYPE_A_MASK) == FAPI_PDSCH_MAPPING_TYPE_A_MASK)
    {
@@ -548,7 +562,7 @@ PUBLIC void fillPdschMappingType(uint8_t value, ClCellParam **cellPtr)
  *
  * ****************************************************************/
 
-PUBLIC void fillPdschAllocationType(uint8_t value, ClCellParam **cellPtr)
+void fillPdschAllocationType(uint8_t value, ClCellParam **cellPtr)
 {
    if((value & FAPI_PDSCH_ALLOC_TYPE_0_MASK) == FAPI_PDSCH_ALLOC_TYPE_0_MASK)
    {
@@ -581,7 +595,7 @@ PUBLIC void fillPdschAllocationType(uint8_t value, ClCellParam **cellPtr)
  * @return void
  *
  ******************************************************************/
-PUBLIC void fillPrbMappingType(uint8_t value, ClCellParam **cellPtr)
+void fillPrbMappingType(uint8_t value, ClCellParam **cellPtr)
 {
    if((value & FAPI_PDSCH_VRB_TO_PRB_MAP_NON_INTLV_MASK) == FAPI_PDSCH_VRB_TO_PRB_MAP_NON_INTLV_MASK)
    {
@@ -615,7 +629,7 @@ PUBLIC void fillPrbMappingType(uint8_t value, ClCellParam **cellPtr)
  *
  ******************************************************************/
 
-PUBLIC void fillPdschDmrsConfigType(uint8_t value, ClCellParam **cellPtr)
+void fillPdschDmrsConfigType(uint8_t value, ClCellParam **cellPtr)
 {
    if((value & FAPI_PDSCH_DMRS_CONFIG_TYPE_1_MASK) == FAPI_PDSCH_DMRS_CONFIG_TYPE_1_MASK)
    {
@@ -648,7 +662,7 @@ PUBLIC void fillPdschDmrsConfigType(uint8_t value, ClCellParam **cellPtr)
  * @return void
  *
  ******************************************************************/
-PUBLIC void fillPdschDmrsLength(uint8_t value, ClCellParam **cellPtr)
+void fillPdschDmrsLength(uint8_t value, ClCellParam **cellPtr)
 {
    if(value == FAPI_PDSCH_DMRS_MAX_LENGTH_1)
    {
@@ -682,7 +696,7 @@ PUBLIC void fillPdschDmrsLength(uint8_t value, ClCellParam **cellPtr)
  *
  ******************************************************************/
 
-PUBLIC void fillPdschDmrsAddPos(uint8_t value, ClCellParam **cellPtr)
+void fillPdschDmrsAddPos(uint8_t value, ClCellParam **cellPtr)
 {
    if((value & FAPI_DMRS_ADDITIONAL_POS_0_MASK) == FAPI_DMRS_ADDITIONAL_POS_0_MASK)
    {
@@ -723,7 +737,7 @@ PUBLIC void fillPdschDmrsAddPos(uint8_t value, ClCellParam **cellPtr)
  * @return void
  *
  ******************************************************************/
-PUBLIC void fillModulationOrderDl(uint8_t value, ClCellParam **cellPtr)
+void fillModulationOrderDl(uint8_t value, ClCellParam **cellPtr)
 {
    if(value == 0 )
    {
@@ -765,7 +779,7 @@ PUBLIC void fillModulationOrderDl(uint8_t value, ClCellParam **cellPtr)
  *
  ******************************************************************/
 
-PUBLIC void fillPuschDmrsConfig(uint8_t value, ClCellParam **cellPtr)
+void fillPuschDmrsConfig(uint8_t value, ClCellParam **cellPtr)
 {
    if((value & FAPI_PUSCH_DMRS_CONFIG_TYPE_1_MASK) == FAPI_PUSCH_DMRS_CONFIG_TYPE_1_MASK)
    {
@@ -799,7 +813,7 @@ PUBLIC void fillPuschDmrsConfig(uint8_t value, ClCellParam **cellPtr)
  *
  ******************************************************************/
 
-PUBLIC void fillPuschDmrsLength(uint8_t value, ClCellParam **cellPtr)
+void fillPuschDmrsLength(uint8_t value, ClCellParam **cellPtr)
 {
    if(value  == FAPI_PUSCH_DMRS_MAX_LENGTH_1)
    {
@@ -833,7 +847,7 @@ PUBLIC void fillPuschDmrsLength(uint8_t value, ClCellParam **cellPtr)
  *
  ******************************************************************/
 
-PUBLIC void fillPuschDmrsAddPos(uint8_t value, ClCellParam **cellPtr)
+void fillPuschDmrsAddPos(uint8_t value, ClCellParam **cellPtr)
 {
    if((value & FAPI_DMRS_ADDITIONAL_POS_0_MASK) == FAPI_DMRS_ADDITIONAL_POS_0_MASK)
    {
@@ -875,7 +889,7 @@ PUBLIC void fillPuschDmrsAddPos(uint8_t value, ClCellParam **cellPtr)
  *
  ******************************************************************/
 
-PUBLIC void fillPuschMappingType(uint8_t value, ClCellParam **cellPtr)
+void fillPuschMappingType(uint8_t value, ClCellParam **cellPtr)
 {
    if((value & FAPI_PUSCH_MAPPING_TYPE_A_MASK) == FAPI_PUSCH_MAPPING_TYPE_A_MASK)
    {
@@ -909,7 +923,7 @@ PUBLIC void fillPuschMappingType(uint8_t value, ClCellParam **cellPtr)
  *
  ******************************************************************/
 
-PUBLIC void fillPuschAllocationType(uint8_t value, ClCellParam **cellPtr)
+void fillPuschAllocationType(uint8_t value, ClCellParam **cellPtr)
 {
    if((value & FAPI_PUSCH_ALLOC_TYPE_0_MASK) == FAPI_PUSCH_ALLOC_TYPE_0_MASK)
    {
@@ -943,7 +957,7 @@ PUBLIC void fillPuschAllocationType(uint8_t value, ClCellParam **cellPtr)
  *
  ******************************************************************/
 
-PUBLIC void fillPuschPrbMappingType(uint8_t value, ClCellParam **cellPtr)
+void fillPuschPrbMappingType(uint8_t value, ClCellParam **cellPtr)
 {
    if((value & FAPI_PUSCH_VRB_TO_PRB_MAP_NON_INTLV_MASK) == FAPI_PUSCH_VRB_TO_PRB_MAP_NON_INTLV_MASK)
    {
@@ -977,7 +991,7 @@ PUBLIC void fillPuschPrbMappingType(uint8_t value, ClCellParam **cellPtr)
  *
  ******************************************************************/
 
-PUBLIC void fillModulationOrderUl(uint8_t value, ClCellParam **cellPtr)
+void fillModulationOrderUl(uint8_t value, ClCellParam **cellPtr)
 {
    if(value == 0)
    {
@@ -1019,7 +1033,7 @@ PUBLIC void fillModulationOrderUl(uint8_t value, ClCellParam **cellPtr)
  *
  ******************************************************************/
 
-PUBLIC void fillPuschAggregationFactor(uint8_t value, ClCellParam **cellPtr)
+void fillPuschAggregationFactor(uint8_t value, ClCellParam **cellPtr)
 {
    if((value & FAPI_FORMAT_0_MASK) == FAPI_FORMAT_0_MASK)
    {
@@ -1061,7 +1075,7 @@ PUBLIC void fillPuschAggregationFactor(uint8_t value, ClCellParam **cellPtr)
  *
  ******************************************************************/
 
-PUBLIC void fillPrachLongFormat(uint8_t value, ClCellParam **cellPtr)
+void fillPrachLongFormat(uint8_t value, ClCellParam **cellPtr)
 {
    if((value & FAPI_PRACH_LF_FORMAT_0_MASK) == FAPI_PRACH_LF_FORMAT_0_MASK)
    {
@@ -1103,7 +1117,7 @@ PUBLIC void fillPrachLongFormat(uint8_t value, ClCellParam **cellPtr)
  *
  ******************************************************************/
 
-PUBLIC void fillPrachShortFormat(uint8_t value, ClCellParam **cellPtr)
+void fillPrachShortFormat(uint8_t value, ClCellParam **cellPtr)
 {
    if((value & FAPI_PRACH_SF_FORMAT_A1_MASK) == FAPI_PRACH_SF_FORMAT_A1_MASK)
    {
@@ -1165,7 +1179,7 @@ PUBLIC void fillPrachShortFormat(uint8_t value, ClCellParam **cellPtr)
  *
  ******************************************************************/
 
-PUBLIC void fillFdOccasions(uint8_t value, ClCellParam **cellPtr)
+void fillFdOccasions(uint8_t value, ClCellParam **cellPtr)
 {
    if(value == 0)
    {
@@ -1207,7 +1221,7 @@ PUBLIC void fillFdOccasions(uint8_t value, ClCellParam **cellPtr)
  *
  ******************************************************************/
 
-PUBLIC void fillRssiMeas(uint8_t value, ClCellParam **cellPtr)
+void fillRssiMeas(uint8_t value, ClCellParam **cellPtr)
 {
    if((value & FAPI_RSSI_REPORT_IN_DBM_MASK) == FAPI_RSSI_REPORT_IN_DBM_MASK)
    {
@@ -1242,17 +1256,13 @@ PUBLIC void fillRssiMeas(uint8_t value, ClCellParam **cellPtr)
 
 uint32_t getParamValue(fapi_uint16_tlv_t *tlv, uint16_t type)
 {
-   //uint16_t valueLen;
    void *posPtr;
-   //valueLen = tlv->tl.length;
    posPtr   = &tlv->tl.tag;
    posPtr   += sizeof(tlv->tl.tag);
    posPtr   += sizeof(tlv->tl.length);
    /*TO DO: malloc to SSI memory */
    if(type == FAPI_UINT_8)
    {
-      //temp = (uint8_t *)malloc(valueLen * sizeof(U8));
-      //memcpy(temp, posPtr, valueLen);
       return(*(uint8_t *)posPtr);
    }
    else if(type == FAPI_UINT_16)
@@ -1265,11 +1275,34 @@ uint32_t getParamValue(fapi_uint16_tlv_t *tlv, uint16_t type)
    }
    else
    {
-      DU_LOG("\nLWR_MAC: Value Extraction failed" );
+      DU_LOG("\nERROR  -->  LWR_MAC: Value Extraction failed" );
       return RFAILED;
    }
 }
 #endif /* FAPI */
+
+/*******************************************************************
+ *
+ * @brief Modifes the received mibPdu to uint32 bit
+ *        and stores it in MacCellCfg
+ *
+ * @details
+ *
+ *    Function : setMibPdu
+ *
+ *    Functionality:
+ *         -Sets the MibPdu
+ *
+ * @params[in] Pointer to mibPdu
+ *             pointer to modified value
+ ******************************************************************/
+void setMibPdu(uint8_t *mibPdu, uint32_t *val, uint16_t sfn)
+{
+   *mibPdu |= (((uint8_t)(sfn << 2)) & MIB_SFN_BITMASK);
+   *val = (mibPdu[0] << 24 | mibPdu[1] << 16 | mibPdu[2] << 8);
+   DU_LOG("\nDEBUG  -->  LWR_MAC: MIB PDU %x", *val);
+}
+
 /*******************************************************************
  *
  * @brief Sends FAPI Param req to PHY
@@ -1291,21 +1324,40 @@ uint8_t lwr_mac_procParamReqEvt(void *msg)
 {
 #ifdef INTEL_FAPI
    /* startGuardTimer(); */
-   uint32_t msgLen = 0;             //Length of message Body
-   fapi_param_req_t *paramReq = NULL;
+   fapi_param_req_t         *paramReq = NULL;
+   fapi_msg_header_t        *msgHeader;
+   p_fapi_api_queue_elem_t  paramReqElem;
+   p_fapi_api_queue_elem_t  headerElem;
 
-   LWR_MAC_ALLOC(paramReq, sizeof(fapi_param_req_t));
+   LWR_MAC_ALLOC(paramReqElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_param_req_t)));
    if(paramReq != NULL)
    {
-      fillMsgHeader(&paramReq->header, FAPI_PARAM_REQUEST, msgLen);
+      FILL_FAPI_LIST_ELEM(paramReqElem, NULLP, FAPI_PARAM_REQUEST, 1, \
+         sizeof(fapi_tx_data_req_t));
+      paramReq = (fapi_param_req_t *)(paramReqElem +1);
+      memset(paramReq, 0, sizeof(fapi_param_req_t));
+      fillMsgHeader(&paramReq->header, FAPI_PARAM_REQUEST, sizeof(fapi_param_req_t));
+
+      /* Fill message header */
+      LWR_MAC_ALLOC(headerElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_msg_header_t)));
+      if(!headerElem)
+      {
+         DU_LOG("\nERROR  -->  LWR_MAC: Memory allocation failed for param req header");
+         LWR_MAC_FREE(paramReqElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_param_req_t)));
+         return RFAILED;
+      }
+      FILL_FAPI_LIST_ELEM(headerElem, paramReqElem, FAPI_VENDOR_MSG_HEADER_IND, 1, \
+         sizeof(fapi_msg_header_t));
+      msgHeader = (fapi_msg_header_t *)(headerElem + 1);
+      msgHeader->num_msg = 1;
+      msgHeader->handle = 0;
 
-      DU_LOG("\nLWR_MAC: Sending Param Request to Phy");
-      LwrMacSendToPhy(paramReq->header.msg_id, \
-           sizeof(fapi_param_req_t), (void *)paramReq);
+      DU_LOG("\nDEBUG  -->  LWR_MAC: Sending Param Request to Phy");
+      LwrMacSendToL1(headerElem);
    }
    else
    {
-      DU_LOG("\nLWR_MAC: Failed to allocate memory for Param Request");
+      DU_LOG("\nERROR  -->  LWR_MAC: Failed to allocate memory for Param Request");
       return RFAILED;
    }
 #endif
@@ -1339,14 +1391,14 @@ uint8_t lwr_mac_procParamRspEvt(void *msg)
    ClCellParam *cellParam = NULLP;
 
    paramRsp = (fapi_param_resp_t *)msg;
-   DU_LOG("\nLWR_MAC: Received EVENT[%d] at STATE[%d]", lwrMacCb.event, lwrMacCb.phyState);
+   DU_LOG("\nINFO  -->  LWR_MAC: Received EVENT[%d] at STATE[%d]", lwrMacCb.event, lwrMacCb.phyState);
 
    if(paramRsp != NULLP)
    {
       MAC_ALLOC(cellParam, sizeof(ClCellParam));
       if(cellParam != NULLP)
       {
-        DU_LOG("\n LWR_MAC: Filling TLVS into MAC API");
+        DU_LOG("\nDEBUG  -->  LWR_MAC: Filling TLVS into MAC API");
         if(paramRsp->error_code == MSG_OK)
         {
            for(index = 0; index < paramRsp->number_of_tlvs; index++)
@@ -1365,7 +1417,7 @@ uint8_t lwr_mac_procParamRspEvt(void *msg)
                     encodedVal = getParamValue(&paramRsp->tlvs[index], FAPI_UINT_8);
                     if(encodedVal != RFAILED && encodedVal != lwrMacCb.phyState)
                     {
-                       printf("\n PhyState mismatch [%d][%d]", lwrMacCb.phyState, lwrMacCb.event);
+                       DU_LOG("\nERROR  -->  PhyState mismatch [%d][%d]", lwrMacCb.phyState, lwrMacCb.event);
                        return RFAILED;
                     }
                     break;
@@ -1819,7 +1871,7 @@ uint8_t lwr_mac_procParamRspEvt(void *msg)
                     }
                     break;
                  default:
-                    //printf("\n Invalid value for TLV[%x] at index[%d]", paramRsp->tlvs[index].tl.tag, index);
+                    //DU_LOG("\nERROR  -->   Invalid value for TLV[%x] at index[%d]", paramRsp->tlvs[index].tl.tag, index);
                     break;
               }
            }
@@ -1829,19 +1881,19 @@ uint8_t lwr_mac_procParamRspEvt(void *msg)
         }
         else
         {
-           DU_LOG("\n LWR_MAC: Invalid error code %d", paramRsp->error_code);
+           DU_LOG("\nERROR  -->   LWR_MAC: Invalid error code %d", paramRsp->error_code);
            return RFAILED;
         }
       }
       else
       {
-        DU_LOG("\nLWR_MAC: Failed to allocate memory for cell param");
+        DU_LOG("\nERROR  -->  LWR_MAC: Failed to allocate memory for cell param");
         return RFAILED;
       }
    }
    else
    {
-      DU_LOG("\nLWR_MAC:  Param Response received from PHY is NULL");
+      DU_LOG("\nERROR  -->  LWR_MAC:  Param Response received from PHY is NULL");
       return RFAILED;
    }
 #else
@@ -1849,6 +1901,70 @@ uint8_t lwr_mac_procParamRspEvt(void *msg)
 #endif
 }
 
+#ifdef INTEL_TIMER_MODE
+uint8_t lwr_mac_procIqSamplesReqEvt(void *msg)
+{
+   void * wlsHdlr = NULLP;
+   fapi_msg_header_t *msgHeader;
+   fapi_vendor_ext_iq_samples_req_t *iqSampleReq;
+   p_fapi_api_queue_elem_t  headerElem;
+   p_fapi_api_queue_elem_t  iqSampleElem;
+   char filename[100] = "/root/intel/FlexRAN/testcase/ul/mu0_20mhz/2/uliq00_prach_tst2.bin"; 
+
+   uint8_t buffer[] ={0,0,0,0,0,2,11,0,212,93,40,0,20,137,38,0,20,0,20,0,0,8,0,8,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,255,0,0,0,0,0,0,0,2,2,2,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,128,1,0,0,0,0,0,0,1,0,2,0,0,0,0,0,0,0,1,0};
+
+   size_t bufferSize = sizeof(buffer) / sizeof(buffer[0]);
+
+   /* Fill IQ sample req */
+   mtGetWlsHdl(&wlsHdlr);
+   //iqSampleElem = (p_fapi_api_queue_elem_t)WLS_Alloc(wlsHdlr, \
+      (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_vendor_ext_iq_samples_req_t))); 
+   LWR_MAC_ALLOC(iqSampleElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_vendor_ext_iq_samples_req_t)));
+   if(!iqSampleElem)
+   {
+      DU_LOG("\nERROR  -->  LWR_MAC: Memory allocation failed for IQ sample req");
+      return RFAILED;
+   }
+   FILL_FAPI_LIST_ELEM(iqSampleElem, NULLP, FAPI_VENDOR_EXT_UL_IQ_SAMPLES, 1, \
+      sizeof(fapi_vendor_ext_iq_samples_req_t));
+
+   iqSampleReq = (fapi_vendor_ext_iq_samples_req_t *)(iqSampleElem + 1);
+   memset(iqSampleReq, 0, sizeof(fapi_vendor_ext_iq_samples_req_t));
+   fillMsgHeader(&iqSampleReq->header, FAPI_VENDOR_EXT_UL_IQ_SAMPLES, \
+      sizeof(fapi_vendor_ext_iq_samples_req_t));
+
+   iqSampleReq->iq_samples_info.carrNum = 0;
+   iqSampleReq->iq_samples_info.numSubframes = 40;
+   iqSampleReq->iq_samples_info.nIsRadioMode = 0;
+   iqSampleReq->iq_samples_info.timerModeFreqDomain = 0;
+   iqSampleReq->iq_samples_info.phaseCompensationEnable = 0;
+   iqSampleReq->iq_samples_info.startFrameNum = 0;
+   iqSampleReq->iq_samples_info.startSlotNum = 0;
+   iqSampleReq->iq_samples_info.startSymNum = 0;
+   strncpy(iqSampleReq->iq_samples_info.filename_in_ul_iq[0], filename, 100);
+   memcpy(iqSampleReq->iq_samples_info.buffer, buffer, bufferSize);
+
+   /* TODO : Fill remaining parameters */
+
+   /* Fill message header */
+   LWR_MAC_ALLOC(headerElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_msg_header_t)));
+   if(!headerElem)
+   {
+      DU_LOG("\nERROR  -->  LWR_MAC: Memory allocation failed for FAPI header in lwr_mac_procIqSamplesReqEvt");
+      return RFAILED;
+   }
+   FILL_FAPI_LIST_ELEM(headerElem, iqSampleElem, FAPI_VENDOR_MSG_HEADER_IND, 1, \
+     sizeof(fapi_msg_header_t));
+   msgHeader = (fapi_msg_header_t *)(headerElem + 1);
+   msgHeader->num_msg = 1; 
+   msgHeader->handle = 0;
+
+   DU_LOG("\nINFO   -->  LWR_MAC: Sending IQ Sample request to Phy");
+   LwrMacSendToL1(headerElem);
+   return ROK;
+}
+#endif
+
 /*******************************************************************
  *
  * @brief Sends FAPI Config req to PHY
@@ -1869,15 +1985,24 @@ uint8_t lwr_mac_procParamRspEvt(void *msg)
 uint8_t lwr_mac_procConfigReqEvt(void *msg)
 {
 #ifdef INTEL_FAPI
-   uint8_t idx = 0;
+#ifdef NR_TDD
+   uint8_t slotIdx = 0; 
+   uint8_t symbolIdx =0;
+#endif   
    uint8_t index = 0;
-   uint16_t *cellId;
-   uint16_t cellIdx;
+   uint16_t *cellId =NULLP;
+   uint16_t cellIdx =0;
    uint32_t msgLen = 0;
+   uint32_t mib = 0;
    MacCellCfg macCfgParams;
+   fapi_vendor_msg_t *vendorMsg;
    fapi_config_req_t *configReq;
+   fapi_msg_header_t *msgHeader;
+   p_fapi_api_queue_elem_t  headerElem;
+   p_fapi_api_queue_elem_t  vendorMsgQElem;
+   p_fapi_api_queue_elem_t  cfgReqQElem;
 
-   DU_LOG("\nLWR_MAC: Received EVENT[%d] at STATE[%d]", lwrMacCb.event, \
+   DU_LOG("\nINFO  -->  LWR_MAC: Received EVENT[%d] at STATE[%d]", lwrMacCb.event, \
         lwrMacCb.phyState);
 
    cellId = (uint16_t *)msg;
@@ -1890,138 +2015,189 @@ uint8_t lwr_mac_procConfigReqEvt(void *msg)
    lwrMacCb.cellCb[lwrMacCb.numCell].phyCellId = macCfgParams.phyCellId; 
    lwrMacCb.numCell++;
 
+   /* Allocte And fill Vendor msg */
+   LWR_MAC_ALLOC(vendorMsgQElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_vendor_msg_t)));  
+   if(!vendorMsgQElem)
+   {
+      DU_LOG("\nERROR  -->  LWR_MAC: Memory allocation failed for vendor msg in config req");
+      return RFAILED;
+   }
+   FILL_FAPI_LIST_ELEM(vendorMsgQElem, NULLP, FAPI_VENDOR_MESSAGE, 1, sizeof(fapi_vendor_msg_t)); 
+   vendorMsg = (fapi_vendor_msg_t *)(vendorMsgQElem + 1);
+   fillMsgHeader(&vendorMsg->header, FAPI_VENDOR_MESSAGE, sizeof(fapi_vendor_msg_t));
+   vendorMsg->config_req_vendor.hopping_id = 0;
+   vendorMsg->config_req_vendor.carrier_aggregation_level = 0;
+   vendorMsg->config_req_vendor.group_hop_flag = 0;
+   vendorMsg->config_req_vendor.sequence_hop_flag = 0;
+   vendorMsg->start_req_vendor.sfn = 0;
+   vendorMsg->start_req_vendor.slot = 0;
+   vendorMsg->start_req_vendor.mode = 4;
+#ifdef DEBUG_MODE
+   vendorMsg->start_req_vendor.count = 0;
+   vendorMsg->start_req_vendor.period = 1;
+#endif
    /* Fill FAPI config req */
-   LWR_MAC_ALLOC(configReq, sizeof(fapi_config_req_t));
-   if(configReq != NULL)
+   LWR_MAC_ALLOC(cfgReqQElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_config_req_t)));
+   if(!cfgReqQElem)
    {
-      memset(configReq, 0, sizeof(fapi_config_req_t));
-      msgLen = sizeof(macCfgParams.numTlv);
-      configReq->number_of_tlvs = macCfgParams.numTlv;
-
-      if(macCfgParams.dlCarrCfg.pres)
-      {
-        fillTlvs(&configReq->tlvs[index++], FAPI_DL_BANDWIDTH_TAG,           \
-              sizeof(uint16_t), macCfgParams.dlCarrCfg.bw, &msgLen);
-        fillTlvs(&configReq->tlvs[index++], FAPI_DL_FREQUENCY_TAG,           \
-              sizeof(uint32_t), macCfgParams.dlCarrCfg.freq, &msgLen);
-        fillTlvs(&configReq->tlvs[index++], FAPI_DL_K0_TAG,                  \
-              sizeof(uint16_t), macCfgParams.dlCarrCfg.k0[0], &msgLen);
-        fillTlvs(&configReq->tlvs[index++], FAPI_DL_GRIDSIZE_TAG,            \
-              sizeof(uint16_t), macCfgParams.dlCarrCfg.gridSize[0], &msgLen);
-        fillTlvs(&configReq->tlvs[index++], FAPI_NUM_TX_ANT_TAG,             \
-              sizeof(uint16_t), macCfgParams.dlCarrCfg.numAnt, &msgLen);
-      }
-      if(macCfgParams.ulCarrCfg.pres)
-      {
-        fillTlvs(&configReq->tlvs[index++], FAPI_UPLINK_BANDWIDTH_TAG,       \
-              sizeof(uint16_t), macCfgParams.ulCarrCfg.bw, &msgLen);
-        fillTlvs(&configReq->tlvs[index++], FAPI_UPLINK_FREQUENCY_TAG,       \
-              sizeof(uint32_t), macCfgParams.ulCarrCfg.freq, &msgLen);
-        fillTlvs(&configReq->tlvs[index++], FAPI_UL_K0_TAG,                  \
-              sizeof(uint16_t), macCfgParams.ulCarrCfg.k0[0], &msgLen);
-        fillTlvs(&configReq->tlvs[index++], FAPI_UL_GRID_SIZE_TAG,           \
-              sizeof(uint16_t), macCfgParams.ulCarrCfg.gridSize[0], &msgLen);
-        fillTlvs(&configReq->tlvs[index++], FAPI_NUM_RX_ANT_TAG,             \
-              sizeof(uint16_t), macCfgParams.ulCarrCfg.numAnt, &msgLen);
-      }
-      fillTlvs(&configReq->tlvs[index++], FAPI_FREQUENCY_SHIFT_7P5_KHZ_TAG,   \
-           sizeof(uint8_t), macCfgParams.freqShft, &msgLen);
-
-      /* fill cell config */
-      fillTlvs(&configReq->tlvs[index++], FAPI_PHY_CELL_ID_TAG,               \
-           sizeof(uint8_t), macCfgParams.phyCellId, &msgLen);
-      fillTlvs(&configReq->tlvs[index++], FAPI_FRAME_DUPLEX_TYPE_TAG,         \
-           sizeof(uint8_t), macCfgParams.dupType, &msgLen);
-
-      /* fill SSB configuration */
-      fillTlvs(&configReq->tlvs[index++], FAPI_SS_PBCH_POWER_TAG,             \
-           sizeof(uint32_t), macCfgParams.ssbCfg.ssbPbchPwr, &msgLen);
-      fillTlvs(&configReq->tlvs[index++], FAPI_BCH_PAYLOAD_TAG,               \
-           sizeof(uint8_t), macCfgParams.ssbCfg.bchPayloadFlag, &msgLen);
-      fillTlvs(&configReq->tlvs[index++], FAPI_SCS_COMMON_TAG,                \
-           sizeof(uint8_t), macCfgParams.ssbCfg.scsCmn, &msgLen);
-
-      /* fill PRACH configuration */
-      fillTlvs(&configReq->tlvs[index++], FAPI_PRACH_SEQUENCE_LENGTH_TAG,     \
-           sizeof(uint8_t), macCfgParams.prachCfg.prachSeqLen, &msgLen);
-      fillTlvs(&configReq->tlvs[index++], FAPI_PRACH_SUBC_SPACING_TAG,        \
-           sizeof(uint8_t), macCfgParams.prachCfg.prachSubcSpacing, &msgLen);
-      fillTlvs(&configReq->tlvs[index++], FAPI_RESTRICTED_SET_CONFIG_TAG,     \
-           sizeof(uint8_t), macCfgParams.prachCfg.prachRstSetCfg, &msgLen);
-      fillTlvs(&configReq->tlvs[index++], FAPI_NUM_PRACH_FD_OCCASIONS_TAG,
-           sizeof(uint8_t), macCfgParams.prachCfg.msg1Fdm, &msgLen);
-      fillTlvs(&configReq->tlvs[index++], FAPI_PRACH_ROOT_SEQUENCE_INDEX_TAG, \
-           sizeof(uint16_t), macCfgParams.prachCfg.fdm[0].rootSeqIdx, &msgLen);
-      fillTlvs(&configReq->tlvs[index++], FAPI_NUM_ROOT_SEQUENCES_TAG,        \
-           sizeof(uint8_t), macCfgParams.prachCfg.fdm[0].numRootSeq, &msgLen);
-      fillTlvs(&configReq->tlvs[index++], FAPI_K1_TAG,                        \
-           sizeof(uint16_t), macCfgParams.prachCfg.fdm[0].k1, &msgLen);
-      fillTlvs(&configReq->tlvs[index++], FAPI_PRACH_ZERO_CORR_CONF_TAG ,     \
-           sizeof(uint8_t), macCfgParams.prachCfg.fdm[0].zeroCorrZoneCfg, &msgLen);
-      fillTlvs(&configReq->tlvs[index++], FAPI_NUM_UNUSED_ROOT_SEQUENCES_TAG, \
-           sizeof(uint8_t), macCfgParams.prachCfg.fdm[0].numUnusedRootSeq, &msgLen);
-      if(macCfgParams.prachCfg.fdm[0].numUnusedRootSeq)
+      DU_LOG("\nERROR  -->  LWR_MAC: Memory allocation failed for config req");
+      LWR_MAC_ALLOC(vendorMsgQElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_vendor_msg_t)));
+      return RFAILED;
+   }
+   FILL_FAPI_LIST_ELEM(cfgReqQElem, vendorMsgQElem, FAPI_CONFIG_REQUEST, 1, \
+      sizeof(fapi_config_req_t));
+
+   configReq = (fapi_config_req_t *)(cfgReqQElem + 1);
+   memset(configReq, 0, sizeof(fapi_config_req_t));
+   fillMsgHeader(&configReq->header, FAPI_CONFIG_REQUEST, sizeof(fapi_config_req_t));
+   configReq->number_of_tlvs = 25;
+   msgLen = sizeof(configReq->number_of_tlvs);
+
+   if(macCfgParams.dlCarrCfg.pres)
+   {
+      fillTlvs(&configReq->tlvs[index++], FAPI_DL_BANDWIDTH_TAG,           \
+         sizeof(uint32_t), macCfgParams.dlCarrCfg.bw, &msgLen);
+      fillTlvs(&configReq->tlvs[index++], FAPI_DL_FREQUENCY_TAG,           \
+         sizeof(uint32_t), macCfgParams.dlCarrCfg.freq, &msgLen);
+      /* Due to bug in Intel FT code, commenting TLVs that are are not 
+       * needed to avoid error. Must be uncommented when FT bug is fixed */
+      //fillTlvs(&configReq->tlvs[index++], FAPI_DL_K0_TAG,                  \
+         sizeof(uint16_t), macCfgParams.dlCarrCfg.k0[0], &msgLen);
+      //fillTlvs(&configReq->tlvs[index++], FAPI_DL_GRIDSIZE_TAG,            \
+         sizeof(uint16_t), macCfgParams.dlCarrCfg.gridSize[0], &msgLen);
+      fillTlvs(&configReq->tlvs[index++], FAPI_NUM_TX_ANT_TAG,             \
+         sizeof(uint16_t), macCfgParams.dlCarrCfg.numAnt, &msgLen);
+   }
+   if(macCfgParams.ulCarrCfg.pres)
+   {
+      fillTlvs(&configReq->tlvs[index++], FAPI_UPLINK_BANDWIDTH_TAG,       \
+           sizeof(uint32_t), macCfgParams.ulCarrCfg.bw, &msgLen);
+      fillTlvs(&configReq->tlvs[index++], FAPI_UPLINK_FREQUENCY_TAG,       \
+           sizeof(uint32_t), macCfgParams.ulCarrCfg.freq, &msgLen);
+      //fillTlvs(&configReq->tlvs[index++], FAPI_UL_K0_TAG,                  \
+      sizeof(uint16_t), macCfgParams.ulCarrCfg.k0[0], &msgLen);
+      //fillTlvs(&configReq->tlvs[index++], FAPI_UL_GRID_SIZE_TAG,           \
+      sizeof(uint16_t), macCfgParams.ulCarrCfg.gridSize[0], &msgLen);
+      fillTlvs(&configReq->tlvs[index++], FAPI_NUM_RX_ANT_TAG,             \
+           sizeof(uint16_t), macCfgParams.ulCarrCfg.numAnt, &msgLen);
+   }
+   //fillTlvs(&configReq->tlvs[index++], FAPI_FREQUENCY_SHIFT_7P5_KHZ_TAG,   \
+   sizeof(uint8_t), macCfgParams.freqShft, &msgLen);
+
+   /* fill cell config */
+   fillTlvs(&configReq->tlvs[index++], FAPI_PHY_CELL_ID_TAG,               \
+        sizeof(uint8_t), macCfgParams.phyCellId, &msgLen);
+   fillTlvs(&configReq->tlvs[index++], FAPI_FRAME_DUPLEX_TYPE_TAG,         \
+        sizeof(uint8_t), macCfgParams.dupType, &msgLen);
+
+   /* fill SSB configuration */
+   fillTlvs(&configReq->tlvs[index++], FAPI_SS_PBCH_POWER_TAG,             \
+        sizeof(uint32_t), macCfgParams.ssbCfg.ssbPbchPwr, &msgLen);
+   //fillTlvs(&configReq->tlvs[index++], FAPI_BCH_PAYLOAD_TAG,               \
+   sizeof(uint8_t), macCfgParams.ssbCfg.bchPayloadFlag, &msgLen);
+   fillTlvs(&configReq->tlvs[index++], FAPI_SCS_COMMON_TAG,                \
+        sizeof(uint8_t), macCfgParams.ssbCfg.scsCmn, &msgLen);
+
+   /* fill PRACH configuration */
+   //fillTlvs(&configReq->tlvs[index++], FAPI_PRACH_SEQUENCE_LENGTH_TAG,     \
+   sizeof(uint8_t), macCfgParams.prachCfg.prachSeqLen, &msgLen);
+   fillTlvs(&configReq->tlvs[index++], FAPI_PRACH_SUBC_SPACING_TAG,        \
+        sizeof(uint8_t), macCfgParams.prachCfg.prachSubcSpacing, &msgLen);
+   fillTlvs(&configReq->tlvs[index++], FAPI_RESTRICTED_SET_CONFIG_TAG,     \
+        sizeof(uint8_t), macCfgParams.prachCfg.prachRstSetCfg, &msgLen);
+   fillTlvs(&configReq->tlvs[index++], FAPI_NUM_PRACH_FD_OCCASIONS_TAG,
+        sizeof(uint8_t), macCfgParams.prachCfg.msg1Fdm, &msgLen);
+   fillTlvs(&configReq->tlvs[index++], FAPI_PRACH_CONFIG_INDEX_TAG,
+        sizeof(uint8_t), macCfgParams.prachCfg.prachCfgIdx, &msgLen);
+   fillTlvs(&configReq->tlvs[index++], FAPI_PRACH_ROOT_SEQUENCE_INDEX_TAG, \
+        sizeof(uint16_t), macCfgParams.prachCfg.fdm[0].rootSeqIdx, &msgLen);
+   //fillTlvs(&configReq->tlvs[index++], FAPI_NUM_ROOT_SEQUENCES_TAG,        \
+   sizeof(uint8_t), macCfgParams.prachCfg.fdm[0].numRootSeq, &msgLen);
+   fillTlvs(&configReq->tlvs[index++], FAPI_K1_TAG,                        \
+        sizeof(uint16_t), macCfgParams.prachCfg.fdm[0].k1, &msgLen);
+   fillTlvs(&configReq->tlvs[index++], FAPI_PRACH_ZERO_CORR_CONF_TAG ,     \
+        sizeof(uint8_t), macCfgParams.prachCfg.fdm[0].zeroCorrZoneCfg, &msgLen);
+   //fillTlvs(&configReq->tlvs[index++], FAPI_NUM_UNUSED_ROOT_SEQUENCES_TAG, \
+   sizeof(uint8_t), macCfgParams.prachCfg.fdm[0].numUnusedRootSeq, &msgLen);
+   /* if(macCfgParams.prachCfg.fdm[0].numUnusedRootSeq)
       {
-        for(idx = 0; idx < macCfgParams.prachCfg.fdm[0].numUnusedRootSeq; idx++)
-           fillTlvs(&configReq->tlvs[index++], FAPI_UNUSED_ROOT_SEQUENCES_TAG,   \
-                 sizeof(uint8_t), macCfgParams.prachCfg.fdm[0].unsuedRootSeq[idx], \
-                 &msgLen);
+      for(idx = 0; idx < macCfgParams.prachCfg.fdm[0].numUnusedRootSeq; idx++)
+      fillTlvs(&configReq->tlvs[index++], FAPI_UNUSED_ROOT_SEQUENCES_TAG,   \
+      sizeof(uint8_t), macCfgParams.prachCfg.fdm[0].unsuedRootSeq[idx], \
+      &msgLen);
       }
       else
       {
-        macCfgParams.prachCfg.fdm[0].unsuedRootSeq = NULL;
+      macCfgParams.prachCfg.fdm[0].unsuedRootSeq = NULL;
+      }*/
+
+   fillTlvs(&configReq->tlvs[index++], FAPI_SSB_PER_RACH_TAG,              \
+        sizeof(uint8_t), macCfgParams.prachCfg.ssbPerRach, &msgLen);
+   //fillTlvs(&configReq->tlvs[index++], FAPI_PRACH_MULTIPLE_CARRIERS_IN_A_BAND_TAG,  \
+   sizeof(uint8_t), macCfgParams.prachCfg.prachMultCarrBand, &msgLen);
+
+   /* fill SSB table */
+   fillTlvs(&configReq->tlvs[index++], FAPI_SSB_OFFSET_POINT_A_TAG,        \
+        sizeof(uint16_t), macCfgParams.ssbCfg.ssbOffsetPointA, &msgLen);
+   //fillTlvs(&configReq->tlvs[index++], FAPI_BETA_PSS_TAG,                  \
+   sizeof(uint8_t),  macCfgParams.ssbCfg.betaPss, &msgLen);
+   fillTlvs(&configReq->tlvs[index++], FAPI_SSB_PERIOD_TAG,                \
+        sizeof(uint8_t),  macCfgParams.ssbCfg.ssbPeriod, &msgLen);
+   fillTlvs(&configReq->tlvs[index++], FAPI_SSB_SUBCARRIER_OFFSET_TAG,     \
+        sizeof(uint8_t),  macCfgParams.ssbCfg.ssbScOffset, &msgLen);
+
+   setMibPdu(macCfgParams.ssbCfg.mibPdu, &mib, 0);
+   fillTlvs(&configReq->tlvs[index++], FAPI_MIB_TAG ,                      \
+        sizeof(uint32_t), mib, &msgLen);
+
+   fillTlvs(&configReq->tlvs[index++], FAPI_SSB_MASK_TAG,                  \
+        sizeof(uint32_t), macCfgParams.ssbCfg.ssbMask[0], &msgLen);
+   fillTlvs(&configReq->tlvs[index++], FAPI_BEAM_ID_TAG,                   \
+        sizeof(uint8_t),  macCfgParams.ssbCfg.beamId[0], &msgLen);
+   //fillTlvs(&configReq->tlvs[index++], FAPI_SS_PBCH_MULTIPLE_CARRIERS_IN_A_BAND_TAG, \
+   sizeof(uint8_t), macCfgParams.ssbCfg.multCarrBand, &msgLen);
+   //fillTlvs(&configReq->tlvs[index++], FAPI_MULTIPLE_CELLS_SS_PBCH_IN_A_CARRIER_TAG, \
+   sizeof(uint8_t), macCfgParams.ssbCfg.multCellCarr, &msgLen);
+
+#ifdef NR_TDD
+   /* fill TDD table */
+   fillTlvs(&configReq->tlvs[index++], FAPI_TDD_PERIOD_TAG,                \
+   sizeof(uint8_t), macCfgParams.tddCfg.tddPeriod, &msgLen);
+   for(slotIdx =0 ;slotIdx< MAX_TDD_PERIODICITY_SLOTS; slotIdx++) 
+   {
+      for(symbolIdx = 0; symbolIdx< MAX_SYMB_PER_SLOT; symbolIdx++)
+      {
+        fillTlvs(&configReq->tlvs[index++], FAPI_SLOT_CONFIG_TAG,               \
+              sizeof(uint8_t), macCfgParams.tddCfg.slotCfg[slotIdx][symbolIdx], &msgLen);
       }
-
-      fillTlvs(&configReq->tlvs[index++], FAPI_SSB_PER_RACH_TAG,              \
-           sizeof(uint8_t), macCfgParams.prachCfg.ssbPerRach, &msgLen);
-      fillTlvs(&configReq->tlvs[index++], FAPI_PRACH_MULTIPLE_CARRIERS_IN_A_BAND_TAG,  \
-           sizeof(uint8_t), macCfgParams.prachCfg.prachMultCarrBand, &msgLen);
-
-      /* fill SSB table */
-      fillTlvs(&configReq->tlvs[index++], FAPI_SSB_OFFSET_POINT_A_TAG,        \
-           sizeof(uint16_t), macCfgParams.ssbCfg.ssbOffsetPointA, &msgLen);
-      fillTlvs(&configReq->tlvs[index++], FAPI_BETA_PSS_TAG,                  \
-           sizeof(uint8_t),  macCfgParams.ssbCfg.betaPss, &msgLen);
-      fillTlvs(&configReq->tlvs[index++], FAPI_SSB_PERIOD_TAG,                \
-           sizeof(uint8_t),  macCfgParams.ssbCfg.ssbPeriod, &msgLen);
-      fillTlvs(&configReq->tlvs[index++], FAPI_SSB_SUBCARRIER_OFFSET_TAG,     \
-           sizeof(uint8_t),  macCfgParams.ssbCfg.ssbScOffset, &msgLen);
-      fillTlvs(&configReq->tlvs[index++], FAPI_MIB_TAG ,                      \
-           sizeof(uint32_t), macCfgParams.ssbCfg.mibPdu[0], &msgLen);
-      fillTlvs(&configReq->tlvs[index++], FAPI_SSB_MASK_TAG,                  \
-           sizeof(uint32_t), macCfgParams.ssbCfg.ssbMask[0], &msgLen);
-      fillTlvs(&configReq->tlvs[index++], FAPI_BEAM_ID_TAG,                   \
-           sizeof(uint8_t),  macCfgParams.ssbCfg.beamId[0], &msgLen);
-      fillTlvs(&configReq->tlvs[index++], FAPI_SS_PBCH_MULTIPLE_CARRIERS_IN_A_BAND_TAG, \
-           sizeof(uint8_t), macCfgParams.ssbCfg.multCarrBand, &msgLen);
-      fillTlvs(&configReq->tlvs[index++], FAPI_MULTIPLE_CELLS_SS_PBCH_IN_A_CARRIER_TAG, \
-           sizeof(uint8_t), macCfgParams.ssbCfg.multCellCarr, &msgLen);
-
-      /* fill TDD table */
-      fillTlvs(&configReq->tlvs[index++], FAPI_TDD_PERIOD_TAG,                \
-           sizeof(uint8_t), macCfgParams.tddCfg.tddPeriod, &msgLen);
-      fillTlvs(&configReq->tlvs[index++], FAPI_SLOT_CONFIG_TAG,               \
-           sizeof(uint8_t), macCfgParams.tddCfg.slotCfg[0][0], &msgLen);
-
-      /* fill measurement config */
-      fillTlvs(&configReq->tlvs[index++], FAPI_RSSI_MEASUREMENT_TAG,          \
-           sizeof(uint8_t), macCfgParams.rssiUnit, &msgLen);
-
-      /* fill DMRS Type A Pos */
-      fillTlvs(&configReq->tlvs[index++], FAPI_DMRS_TYPE_A_POS_TAG,           \
-           sizeof(uint8_t), macCfgParams.dmrsTypeAPos, &msgLen);
-
-      fillMsgHeader(&configReq->header, FAPI_CONFIG_REQUEST,                  \
-           (sizeof(fapi_config_req_t) - sizeof(fapi_msg_t)));
-
-      DU_LOG("\nLWR_MAC: Sending Config Request to Phy");
-      LwrMacSendToPhy(configReq->header.msg_id, sizeof(fapi_config_req_t), (void *)configReq);
    }
-   else
+#endif   
+   
+   /* fill measurement config */
+   //fillTlvs(&configReq->tlvs[index++], FAPI_RSSI_MEASUREMENT_TAG,          \
+   sizeof(uint8_t), macCfgParams.rssiUnit, &msgLen);
+
+   /* fill DMRS Type A Pos */
+   fillTlvs(&configReq->tlvs[index++], FAPI_DMRS_TYPE_A_POS_TAG,           \
+        sizeof(uint8_t), macCfgParams.dmrsTypeAPos, &msgLen);
+
+   /* Fill message header */
+   LWR_MAC_ALLOC(headerElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_msg_header_t)));
+   if(!headerElem)
    {
-      DU_LOG("\nLWR_MAC: Failed to allocate memory for config Request");
+      DU_LOG("\nERROR  -->  LWR_MAC: Memory allocation failed for vendor msg in config req");
+      LWR_MAC_ALLOC(cfgReqQElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_config_req_t)));
+      LWR_MAC_ALLOC(vendorMsgQElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_vendor_msg_t)));
       return RFAILED;
    }
+   FILL_FAPI_LIST_ELEM(headerElem, cfgReqQElem, FAPI_VENDOR_MSG_HEADER_IND, 1, \
+        sizeof(fapi_msg_header_t));
+   msgHeader = (fapi_msg_header_t *)(headerElem + 1);
+   msgHeader->num_msg = 2; /* Config req msg and vendor specific msg */
+   msgHeader->handle = 0;
+
+   DU_LOG("\nDEBUG  -->  LWR_MAC: Sending Config Request to Phy");
+   LwrMacSendToL1(headerElem);
 #endif
 
    return ROK;
@@ -2050,14 +2226,14 @@ uint8_t lwr_mac_procConfigRspEvt(void *msg)
    fapi_config_resp_t *configRsp;
    configRsp = (fapi_config_resp_t *)msg;
 
-   DU_LOG("\nLWR_MAC: Received EVENT[%d] at STATE[%d]", lwrMacCb.event, \
+   DU_LOG("\nINFO  -->  LWR_MAC: Received EVENT[%d] at STATE[%d]", lwrMacCb.event, \
         lwrMacCb.phyState);
 
    if(configRsp != NULL)
    {
       if(configRsp->error_code == MSG_OK)
       {
-        DU_LOG("\nLWR_MAC: PHY has moved to Configured state \n");
+        DU_LOG("\nDEBUG  -->  LWR_MAC: PHY has moved to Configured state \n");
         lwrMacCb.phyState = PHY_STATE_CONFIGURED;
         lwrMacCb.cellCb[0].state = PHY_STATE_CONFIGURED;
         /* TODO : 
@@ -2068,13 +2244,13 @@ uint8_t lwr_mac_procConfigRspEvt(void *msg)
       }
       else
       {
-        DU_LOG("\n LWR_MAC: Invalid error code %d", configRsp->error_code);
+        DU_LOG("\nERROR  -->  LWR_MAC: Invalid error code %d", configRsp->error_code);
         return RFAILED;
       }
    }
    else
    {
-      DU_LOG("\nLWR_MAC: Config Response received from PHY is NULL");
+      DU_LOG("\nERROR  -->  LWR_MAC: Config Response received from PHY is NULL");
       return RFAILED;
    }
 #endif
@@ -2101,24 +2277,64 @@ uint8_t lwr_mac_procConfigRspEvt(void *msg)
 uint8_t lwr_mac_procStartReqEvt(void *msg)
 {
 #ifdef INTEL_FAPI
-   uint32_t msgLen = 0;
+   fapi_msg_header_t *msgHeader;
    fapi_start_req_t *startReq;
+   fapi_vendor_msg_t *vendorMsg;
+   p_fapi_api_queue_elem_t  headerElem;
+   p_fapi_api_queue_elem_t  startReqElem;
+   p_fapi_api_queue_elem_t  vendorMsgElem;
 
-   LWR_MAC_ALLOC(startReq, sizeof(fapi_start_req_t));
-   if(startReq != NULL)
+   /* Allocte And fill Vendor msg */
+   LWR_MAC_ALLOC(vendorMsgElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_vendor_msg_t)));
+   if(!vendorMsgElem)
    {
-      memset(startReq, 0, sizeof(fapi_start_req_t));
-      fillMsgHeader(&startReq->header, FAPI_START_REQUEST, msgLen);
+      DU_LOG("\nERROR  -->  LWR_MAC: Memory allocation failed for vendor msg in start req");
+      return RFAILED;
+   }
+   FILL_FAPI_LIST_ELEM(vendorMsgElem, NULLP, FAPI_VENDOR_MESSAGE, 1, sizeof(fapi_vendor_msg_t));
+   vendorMsg = (fapi_vendor_msg_t *)(vendorMsgElem + 1);
+   fillMsgHeader(&vendorMsg->header, FAPI_VENDOR_MESSAGE, sizeof(fapi_vendor_msg_t));
+   vendorMsg->start_req_vendor.sfn = 0;
+   vendorMsg->start_req_vendor.slot = 0;
+   vendorMsg->start_req_vendor.mode = 4; /* for Radio mode */
+#ifdef DEBUG_MODE
+   vendorMsg->start_req_vendor.count = 0;
+   vendorMsg->start_req_vendor.period = 1;
+#endif
 
-      DU_LOG("\nLWR_MAC: Sending Start Request to PHY");
-      LwrMacSendToPhy(startReq->header.msg_id, sizeof(fapi_start_req_t),\
-           (void *)startReq);
+   /* Fill FAPI config req */
+   LWR_MAC_ALLOC(startReqElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_start_req_t)));
+   if(!startReqElem)
+   {
+      DU_LOG("\nERROR  -->  LWR_MAC: Memory allocation failed for start req");
+      LWR_MAC_ALLOC(vendorMsgElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_vendor_msg_t)));
+      return RFAILED;
    }
-   else
+   FILL_FAPI_LIST_ELEM(startReqElem, vendorMsgElem, FAPI_START_REQUEST, 1, \
+      sizeof(fapi_start_req_t));
+
+   startReq = (fapi_start_req_t *)(startReqElem + 1);
+   memset(startReq, 0, sizeof(fapi_start_req_t));
+   fillMsgHeader(&startReq->header, FAPI_START_REQUEST, sizeof(fapi_start_req_t));
+
+   /* Fill message header */
+   LWR_MAC_ALLOC(headerElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_msg_header_t)));
+   if(!headerElem)
    {
-      DU_LOG("\nLWR_MAC: Failed to allocate memory for Start Request");
+      DU_LOG("\nERROR  -->  LWR_MAC: Memory allocation failed for vendor msg in config req");
+      LWR_MAC_ALLOC(startReqElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_start_req_t)));
+      LWR_MAC_ALLOC(vendorMsgElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_vendor_msg_t)));
       return RFAILED;
    }
+   FILL_FAPI_LIST_ELEM(headerElem, startReqElem, FAPI_VENDOR_MSG_HEADER_IND, 1, \
+      sizeof(fapi_msg_header_t));
+   msgHeader = (fapi_msg_header_t *)(headerElem + 1);
+   msgHeader->num_msg = 2; /* Start req msg and vendor specific msg */
+   msgHeader->handle = 0;
+
+   /* Send to PHY */
+   DU_LOG("\nDEBUG  -->  LWR_MAC: Sending Start Request to Phy");
+   LwrMacSendToL1(headerElem);
 #endif
    return ROK;
 } /* lwr_mac_procStartReqEvt */
@@ -2143,46 +2359,64 @@ uint8_t lwr_mac_procStartReqEvt(void *msg)
 uint8_t lwr_mac_procStopReqEvt(void *msg)
 {
 #ifdef INTEL_FAPI
-   uint32_t msgLen = 0;
-   fapi_stop_req_t *stopReq = NULLP;
-   LWR_MAC_ALLOC(stopReq, sizeof(fapi_stop_req_t));
-   if(stopReq != NULLP)
+   SlotIndInfo       *slotInfo;
+   fapi_msg_header_t *msgHeader;
+   fapi_stop_req_t   *stopReq;
+   fapi_vendor_msg_t *vendorMsg;
+   p_fapi_api_queue_elem_t  headerElem;
+   p_fapi_api_queue_elem_t  stopReqElem;
+   p_fapi_api_queue_elem_t  vendorMsgElem;
+
+   slotInfo = (SlotIndInfo *)msg;
+
+   /* Allocte And fill Vendor msg */
+   LWR_MAC_ALLOC(vendorMsgElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_vendor_msg_t)));
+   if(!vendorMsgElem)
    {
-      memset(stopReq, 0, sizeof(fapi_stop_req_t));
-      fillMsgHeader(&stopReq->header, FAPI_STOP_REQUEST, msgLen);
-      DU_LOG("\nLOWER MAC: Sending Stop Request to PHY");
-      LwrMacSendToPhy(stopReq->header.msg_id, sizeof(fapi_stop_req_t), (void *)stopReq);
+      DU_LOG("\nERROR  -->  LWR_MAC: Memory allocation failed for vendor msg in stop req");
+      return RFAILED;
    }
-   else
+   FILL_FAPI_LIST_ELEM(vendorMsgElem, NULLP, FAPI_VENDOR_MESSAGE, 1, sizeof(fapi_vendor_msg_t));
+   vendorMsg = (fapi_vendor_msg_t *)(vendorMsgElem + 1);
+   fillMsgHeader(&vendorMsg->header, FAPI_VENDOR_MESSAGE, sizeof(fapi_vendor_msg_t));
+   vendorMsg->stop_req_vendor.sfn = slotInfo->sfn;
+   vendorMsg->stop_req_vendor.slot = slotInfo->slot;
+
+   /* Fill FAPI stop req */
+   LWR_MAC_ALLOC(stopReqElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_stop_req_t)));
+   if(!stopReqElem)
    {
-      DU_LOG("\nLOWER MAC: Failed to allocate memory for Stop Request");
+      DU_LOG("\nERROR  -->  LWR_MAC: Memory allocation failed for stop req");
+      LWR_MAC_FREE(vendorMsgElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_vendor_msg_t)));
       return RFAILED;
    }
-#endif
-   return ROK;
-}
+   FILL_FAPI_LIST_ELEM(stopReqElem, vendorMsgElem, FAPI_STOP_REQUEST, 1, \
+      sizeof(fapi_stop_req_t));
+   stopReq = (fapi_stop_req_t *)(stopReqElem + 1);
+   memset(stopReq, 0, sizeof(fapi_stop_req_t));
+   fillMsgHeader(&stopReq->header, FAPI_STOP_REQUEST, sizeof(fapi_stop_req_t));
 
-/*******************************************************************
- *
- * @brief Modifes the received mibPdu to uint32 bit
- *        and stores it in MacCellCfg
- *
- * @details
- *
- *    Function : setMibPdu
- *
- *    Functionality:
- *         -Sets the MibPdu
- *
- * @params[in] Pointer to mibPdu
- *             pointer to modified value
- ******************************************************************/
+   /* Fill message header */
+   LWR_MAC_ALLOC(headerElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_msg_header_t)));
+   if(!headerElem)
+   {
+      DU_LOG("\nERROR  -->  LWR_MAC: Memory allocation failed for header in stop req");
+      LWR_MAC_FREE(stopReqElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_stop_req_t)));
+      LWR_MAC_FREE(vendorMsgElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_vendor_msg_t)));
+      return RFAILED;
+   }
+   FILL_FAPI_LIST_ELEM(headerElem, stopReqElem, FAPI_VENDOR_MSG_HEADER_IND, 1, \
+      sizeof(fapi_msg_header_t));
+   msgHeader = (fapi_msg_header_t *)(headerElem + 1);
+   msgHeader->num_msg = 2; /* Stop req msg and vendor specific msg */
+   msgHeader->handle = 0;
 
-PUBLIC void setMibPdu(uint8_t *mibPdu, uint32_t *val, uint16_t sfn)
-{
-   *mibPdu |= (((uint8_t)(sfn >> 2)) & MIB_SFN_BITMASK);
-   *val = (mibPdu[0] << 24 | mibPdu[1] << 16 | mibPdu[2] << 8);
-   DU_LOG("\nLWR_MAC: MIB PDU %x", *val);
+   /* Send to PHY */
+   DU_LOG("\nINFO  -->  LWR_MAC: Sending Stop Request to Phy");
+   LwrMacSendToL1(headerElem);
+
+#endif
+   return ROK;
 }
 
 #ifdef INTEL_FAPI
@@ -2256,24 +2490,24 @@ void fillSib1DlDciPdu(fapi_dl_dci_t *dlDciPtr, PdcchCfg *sib1PdcchInfo)
 {
    if(dlDciPtr != NULLP)
    {
-      uint8_t numBytes;
-      uint8_t bytePos;
-      uint8_t bitPos;
-
-      uint16_t coreset0Size;
-      uint16_t rbStart;
-      uint16_t rbLen;
-      uint32_t freqDomResAssign;
-      uint32_t timeDomResAssign;
-      uint8_t  VRB2PRBMap;
-      uint32_t modNCodScheme;
-      uint8_t  redundancyVer;
-      uint32_t sysInfoInd;
-      uint32_t reserved;
+      uint8_t numBytes=0;
+      uint8_t bytePos=0;
+      uint8_t bitPos=0;
+
+      uint16_t coreset0Size=0;
+      uint16_t rbStart=0;
+      uint16_t rbLen=0;
+      uint32_t freqDomResAssign=0;
+      uint32_t timeDomResAssign=0;
+      uint8_t  VRB2PRBMap=0;
+      uint32_t modNCodScheme=0;
+      uint8_t  redundancyVer=0;
+      uint32_t sysInfoInd=0;
+      uint32_t reserved=0;
 
       /* Size(in bits) of each field in DCI format 0_1 
        * as mentioned in spec 38.214 */
-      uint8_t freqDomResAssignSize;
+      uint8_t freqDomResAssignSize = 0;
       uint8_t timeDomResAssignSize = 4;
       uint8_t VRB2PRBMapSize       = 1;
       uint8_t modNCodSchemeSize    = 5;
@@ -2292,7 +2526,7 @@ void fillSib1DlDciPdu(fapi_dl_dci_t *dlDciPtr, PdcchCfg *sib1PdcchInfo)
       dlDciPtr->pc_and_bform.pmi_bfi[0].pmIdx = sib1PdcchInfo->dci.beamPdcchInfo.prg[0].pmIdx;
       dlDciPtr->pc_and_bform.pmi_bfi[0].beamIdx[0].beamidx = sib1PdcchInfo->dci.beamPdcchInfo.prg[0].beamIdx[0];
       dlDciPtr->beta_pdcch_1_0 = sib1PdcchInfo->dci.txPdcchPower.powerValue;           
-      dlDciPtr->powerControlOfssetSS = sib1PdcchInfo->dci.txPdcchPower.powerControlOffsetSS;
+      dlDciPtr->powerControlOffsetSS = sib1PdcchInfo->dci.txPdcchPower.powerControlOffsetSS;
 
       /* Calculating freq domain resource allocation field value and size
        * coreset0Size = Size of coreset 0
@@ -2300,7 +2534,7 @@ void fillSib1DlDciPdu(fapi_dl_dci_t *dlDciPtr, PdcchCfg *sib1PdcchInfo)
        * RBLen = length of contiguously allocted RBs
        * Spec 38.214 Sec 5.1.2.2.2
        */
-      coreset0Size= sib1PdcchInfo->coreset0Cfg.coreSetSize;
+      coreset0Size= sib1PdcchInfo->coresetCfg.coreSetSize;
       rbStart = 0;              /* For SIB1 */
       //rbStart = sib1PdcchInfo->dci.pdschCfg->pdschFreqAlloc.freqAlloc.startPrb;
       rbLen = sib1PdcchInfo->dci.pdschCfg->pdschFreqAlloc.freqAlloc.numPrb;
@@ -2345,7 +2579,7 @@ void fillSib1DlDciPdu(fapi_dl_dci_t *dlDciPtr, PdcchCfg *sib1PdcchInfo)
 
       if(numBytes > FAPI_DCI_PAYLOAD_BYTE_LEN)
       {
-        DU_LOG("\nLWR_MAC : Total bytes for DCI is more than expected");
+        DU_LOG("\nERROR  -->  LWR_MAC : Total bytes for DCI is more than expected");
         return;
       }
 
@@ -2396,22 +2630,22 @@ void fillRarDlDciPdu(fapi_dl_dci_t *dlDciPtr, PdcchCfg *rarPdcchInfo)
 {
    if(dlDciPtr != NULLP)
    {
-      uint8_t numBytes;
-      uint8_t bytePos;
-      uint8_t bitPos;
+      uint8_t numBytes =0;
+      uint8_t bytePos =0;
+      uint8_t bitPos =0;
 
-      uint16_t coreset0Size;
-      uint16_t rbStart;
-      uint16_t rbLen;
-      uint32_t freqDomResAssign;
-      uint8_t timeDomResAssign;
-      uint8_t  VRB2PRBMap;
-      uint8_t modNCodScheme;
-      uint8_t tbScaling;
-      uint32_t reserved;
+      uint16_t coreset0Size =0;
+      uint16_t rbStart =0;
+      uint16_t rbLen =0;
+      uint32_t freqDomResAssign =0;
+      uint8_t timeDomResAssign =0;
+      uint8_t  VRB2PRBMap =0;
+      uint8_t modNCodScheme =0;
+      uint8_t tbScaling =0;
+      uint32_t reserved =0;
 
       /* Size(in bits) of each field in DCI format 1_0 */
-      uint8_t freqDomResAssignSize;
+      uint8_t freqDomResAssignSize = 0;
       uint8_t timeDomResAssignSize = 4;
       uint8_t VRB2PRBMapSize       = 1;
       uint8_t modNCodSchemeSize    = 5;
@@ -2429,7 +2663,7 @@ void fillRarDlDciPdu(fapi_dl_dci_t *dlDciPtr, PdcchCfg *rarPdcchInfo)
       dlDciPtr->pc_and_bform.pmi_bfi[0].pmIdx = rarPdcchInfo->dci.beamPdcchInfo.prg[0].pmIdx;
       dlDciPtr->pc_and_bform.pmi_bfi[0].beamIdx[0].beamidx = rarPdcchInfo->dci.beamPdcchInfo.prg[0].beamIdx[0];
       dlDciPtr->beta_pdcch_1_0 = rarPdcchInfo->dci.txPdcchPower.powerValue;           
-      dlDciPtr->powerControlOfssetSS = rarPdcchInfo->dci.txPdcchPower.powerControlOffsetSS;
+      dlDciPtr->powerControlOffsetSS = rarPdcchInfo->dci.txPdcchPower.powerControlOffsetSS;
 
       /* Calculating freq domain resource allocation field value and size
        * coreset0Size = Size of coreset 0
@@ -2439,7 +2673,7 @@ void fillRarDlDciPdu(fapi_dl_dci_t *dlDciPtr, PdcchCfg *rarPdcchInfo)
        */
 
       /* TODO: Fill values of coreset0Size, rbStart and rbLen */
-      coreset0Size= rarPdcchInfo->coreset0Cfg.coreSetSize;
+      coreset0Size= rarPdcchInfo->coresetCfg.coreSetSize;
       rbStart = 0;              /* For SIB1 */
       //rbStart = rarPdcchInfo->dci.pdschCfg->freqAlloc.rbStart;
       rbLen = rarPdcchInfo->dci.pdschCfg->pdschFreqAlloc.freqAlloc.numPrb;
@@ -2479,7 +2713,7 @@ void fillRarDlDciPdu(fapi_dl_dci_t *dlDciPtr, PdcchCfg *rarPdcchInfo)
 
       if(numBytes > FAPI_DCI_PAYLOAD_BYTE_LEN)
       {
-        DU_LOG("\nLWR_MAC : Total bytes for DCI is more than expected");
+        DU_LOG("\nERROR  -->  LWR_MAC : Total bytes for DCI is more than expected");
         return;
       }
 
@@ -2508,22 +2742,22 @@ void fillRarDlDciPdu(fapi_dl_dci_t *dlDciPtr, PdcchCfg *rarPdcchInfo)
 
 /*******************************************************************
  *
- * @brief fills msg4 Dl DCI PDU required for DL TTI info in MAC
+ * @brief fills DL DCI PDU required for DL TTI info in MAC
  *
  * @details
  *
- *    Function : fillMsg4DlDciPdu
+ *    Function : fillDlMsgDlDciPdu
  *
  *    Functionality:
- *         -Fills the Msg4 Dl DCI PDU
+ *         -Fills the Dl DCI PDU  
  *
  * @params[in] Pointer to fapi_dl_dci_t
  *             Pointer to PdcchCfg
  * @return ROK
  *
  ******************************************************************/
-void fillMsg4DlDciPdu(fapi_dl_dci_t *dlDciPtr, PdcchCfg *msg4PdcchInfo,\
-      Msg4Info *msg4Info)
+void fillDlMsgDlDciPdu(fapi_dl_dci_t *dlDciPtr, PdcchCfg *pdcchInfo,\
+      DlMsgInfo *dlMsgInfo)
 {
    if(dlDciPtr != NULLP)
    {
@@ -2531,7 +2765,7 @@ void fillMsg4DlDciPdu(fapi_dl_dci_t *dlDciPtr, PdcchCfg *msg4PdcchInfo,\
       uint8_t bytePos;
       uint8_t bitPos;
 
-      uint16_t coreset0Size = 0;
+      uint16_t coresetSize = 0;
       uint16_t rbStart = 0;
       uint16_t rbLen = 0;
       uint8_t  dciFormatId;
@@ -2549,7 +2783,7 @@ void fillMsg4DlDciPdu(fapi_dl_dci_t *dlDciPtr, PdcchCfg *msg4PdcchInfo,\
 
       /* Size(in bits) of each field in DCI format 1_0 */
       uint8_t dciFormatIdSize    = 1;
-      uint8_t freqDomResAssignSize;
+      uint8_t freqDomResAssignSize = 0;
       uint8_t timeDomResAssignSize = 4;
       uint8_t VRB2PRBMapSize       = 1;
       uint8_t modNCodSchemeSize    = 5;
@@ -2561,18 +2795,18 @@ void fillMsg4DlDciPdu(fapi_dl_dci_t *dlDciPtr, PdcchCfg *msg4PdcchInfo,\
       uint8_t pucchResoIndSize     = 3;
       uint8_t harqFeedbackIndSize  = 3;
 
-      dlDciPtr->rnti = msg4PdcchInfo->dci.rnti;
-      dlDciPtr->scramblingId = msg4PdcchInfo->dci.scramblingId;    
-      dlDciPtr->scramblingRnti = msg4PdcchInfo->dci.scramblingRnti;
-      dlDciPtr->cceIndex = msg4PdcchInfo->dci.cceIndex;
-      dlDciPtr->aggregationLevel = msg4PdcchInfo->dci.aggregLevel;
-      dlDciPtr->pc_and_bform.numPrgs = msg4PdcchInfo->dci.beamPdcchInfo.numPrgs;
-      dlDciPtr->pc_and_bform.prgSize = msg4PdcchInfo->dci.beamPdcchInfo.prgSize;
-      dlDciPtr->pc_and_bform.digBfInterfaces = msg4PdcchInfo->dci.beamPdcchInfo.digBfInterfaces;
-      dlDciPtr->pc_and_bform.pmi_bfi[0].pmIdx = msg4PdcchInfo->dci.beamPdcchInfo.prg[0].pmIdx;
-      dlDciPtr->pc_and_bform.pmi_bfi[0].beamIdx[0].beamidx = msg4PdcchInfo->dci.beamPdcchInfo.prg[0].beamIdx[0];
-      dlDciPtr->beta_pdcch_1_0 = msg4PdcchInfo->dci.txPdcchPower.powerValue;           
-      dlDciPtr->powerControlOfssetSS = msg4PdcchInfo->dci.txPdcchPower.powerControlOffsetSS;
+      dlDciPtr->rnti = pdcchInfo->dci.rnti;
+      dlDciPtr->scramblingId = pdcchInfo->dci.scramblingId;
+      dlDciPtr->scramblingRnti = pdcchInfo->dci.scramblingRnti;
+      dlDciPtr->cceIndex = pdcchInfo->dci.cceIndex;
+      dlDciPtr->aggregationLevel = pdcchInfo->dci.aggregLevel;
+      dlDciPtr->pc_and_bform.numPrgs = pdcchInfo->dci.beamPdcchInfo.numPrgs;
+      dlDciPtr->pc_and_bform.prgSize = pdcchInfo->dci.beamPdcchInfo.prgSize;
+      dlDciPtr->pc_and_bform.digBfInterfaces = pdcchInfo->dci.beamPdcchInfo.digBfInterfaces;
+      dlDciPtr->pc_and_bform.pmi_bfi[0].pmIdx = pdcchInfo->dci.beamPdcchInfo.prg[0].pmIdx;
+      dlDciPtr->pc_and_bform.pmi_bfi[0].beamIdx[0].beamidx = pdcchInfo->dci.beamPdcchInfo.prg[0].beamIdx[0];
+      dlDciPtr->beta_pdcch_1_0 = pdcchInfo->dci.txPdcchPower.powerValue;
+      dlDciPtr->powerControlOffsetSS = pdcchInfo->dci.txPdcchPower.powerControlOffsetSS;
 
       /* Calculating freq domain resource allocation field value and size
        * coreset0Size = Size of coreset 0
@@ -2580,35 +2814,33 @@ void fillMsg4DlDciPdu(fapi_dl_dci_t *dlDciPtr, PdcchCfg *msg4PdcchInfo,\
        * RBLen = length of contiguously allocted RBs
        * Spec 38.214 Sec 5.1.2.2.2
        */
+      coresetSize = pdcchInfo->coresetCfg.coreSetSize;
+      rbStart = pdcchInfo->dci.pdschCfg->pdschFreqAlloc.freqAlloc.startPrb;
+      rbLen = pdcchInfo->dci.pdschCfg->pdschFreqAlloc.freqAlloc.numPrb;
 
-      /* TODO: Fill values of coreset0Size, rbStart and rbLen */
-      coreset0Size = msg4PdcchInfo->coreset0Cfg.coreSetSize;
-      //rbStart = msg4PdcchInfo->dci.pdschCfg->freqAlloc.rbStart;
-      rbLen = msg4PdcchInfo->dci.pdschCfg->pdschFreqAlloc.freqAlloc.numPrb;
-
-      if((rbLen >=1) && (rbLen <= coreset0Size - rbStart))
+      if((rbLen >=1) && (rbLen <= coresetSize - rbStart))
       {
-        if((rbLen - 1) <= floor(coreset0Size / 2))
-           freqDomResAssign = (coreset0Size * (rbLen-1)) + rbStart;
-        else
-           freqDomResAssign = (coreset0Size * (coreset0Size - rbLen + 1)) \
-                              + (coreset0Size - 1 - rbStart);
+         if((rbLen - 1) <= floor(coresetSize / 2))
+            freqDomResAssign = (coresetSize * (rbLen-1)) + rbStart;
+         else
+            freqDomResAssign = (coresetSize * (coresetSize - rbLen + 1)) \
+                               + (coresetSize - 1 - rbStart);
 
-        freqDomResAssignSize = ceil(log2(coreset0Size * (coreset0Size + 1) / 2));
+         freqDomResAssignSize = ceil(log2(coresetSize * (coresetSize + 1) / 2));
       }
 
       /* Fetching DCI field values */
-      dciFormatId      = msg4Info->dciFormatId; /* DCI indentifier for DL */
-      timeDomResAssign = msg4PdcchInfo->dci.pdschCfg->pdschTimeAlloc.rowIndex -1;
-      VRB2PRBMap       = msg4PdcchInfo->dci.pdschCfg->pdschFreqAlloc.vrbPrbMapping;
-      modNCodScheme    = msg4PdcchInfo->dci.pdschCfg->codeword[0].mcsIndex;
-      ndi              = msg4Info->ndi;      
-      redundancyVer    = msg4PdcchInfo->dci.pdschCfg->codeword[0].rvIndex;
-      harqProcessNum   = msg4Info->harqProcNum; 
-      dlAssignmentIdx  = msg4Info->dlAssignIdx;
-      pucchTpc         = msg4Info->pucchTpc;
-      pucchResoInd     = msg4Info->pucchResInd;
-      harqFeedbackInd  = msg4Info->harqFeedbackInd;
+      dciFormatId      = dlMsgInfo->dciFormatId;     /* Always set to 1 for DL */
+      timeDomResAssign = pdcchInfo->dci.pdschCfg->pdschTimeAlloc.rowIndex -1;
+      VRB2PRBMap       = pdcchInfo->dci.pdschCfg->pdschFreqAlloc.vrbPrbMapping;
+      modNCodScheme    = pdcchInfo->dci.pdschCfg->codeword[0].mcsIndex;
+      ndi              = dlMsgInfo->ndi;
+      redundancyVer    = pdcchInfo->dci.pdschCfg->codeword[0].rvIndex;
+      harqProcessNum   = dlMsgInfo->harqProcNum;
+      dlAssignmentIdx  = dlMsgInfo->dlAssignIdx;
+      pucchTpc         = dlMsgInfo->pucchTpc;
+      pucchResoInd     = dlMsgInfo->pucchResInd;
+      harqFeedbackInd  = dlMsgInfo->harqFeedbackInd;
 
       /* Reversing bits in each DCI field */
       dciFormatId      = reverseBits(dciFormatId, dciFormatIdSize);
@@ -2627,56 +2859,56 @@ void fillMsg4DlDciPdu(fapi_dl_dci_t *dlDciPtr, PdcchCfg *msg4PdcchInfo,\
 
       /* Calulating total number of bytes in buffer */
       dlDciPtr->payloadSizeBits = (dciFormatIdSize + freqDomResAssignSize\
-           + timeDomResAssignSize + VRB2PRBMapSize + modNCodSchemeSize\
-           + ndiSize + redundancyVerSize + harqProcessNumSize + dlAssignmentIdxSize\
-           + pucchTpcSize + pucchResoIndSize + harqFeedbackIndSize);
+            + timeDomResAssignSize + VRB2PRBMapSize + modNCodSchemeSize\
+            + ndiSize + redundancyVerSize + harqProcessNumSize + dlAssignmentIdxSize\
+            + pucchTpcSize + pucchResoIndSize + harqFeedbackIndSize);
 
       numBytes = dlDciPtr->payloadSizeBits / 8;
       if(dlDciPtr->payloadSizeBits % 8)
-        numBytes += 1;
+         numBytes += 1;
 
       if(numBytes > FAPI_DCI_PAYLOAD_BYTE_LEN)
       {
-        DU_LOG("\nLWR_MAC : Total bytes for DCI is more than expected");
-        return;
+         DU_LOG("\nERROR  -->  LWR_MAC : Total bytes for DCI is more than expected");
+         return;
       }
 
       /* Initialize buffer */
       for(bytePos = 0; bytePos < numBytes; bytePos++)
-        dlDciPtr->payload[bytePos] = 0;
+         dlDciPtr->payload[bytePos] = 0;
 
       bytePos = numBytes - 1;
       bitPos = 0;
 
       /* Packing DCI format fields */
       fillDlDciPayload(dlDciPtr->payload, &bytePos, &bitPos,\
-           dciFormatId, dciFormatIdSize);
+            dciFormatId, dciFormatIdSize);
       fillDlDciPayload(dlDciPtr->payload, &bytePos, &bitPos,\
-           freqDomResAssign, freqDomResAssignSize);
+            freqDomResAssign, freqDomResAssignSize);
       fillDlDciPayload(dlDciPtr->payload, &bytePos, &bitPos,\
-           timeDomResAssign, timeDomResAssignSize);
+            timeDomResAssign, timeDomResAssignSize);
       fillDlDciPayload(dlDciPtr->payload, &bytePos, &bitPos,\
-           VRB2PRBMap, VRB2PRBMapSize);
+            VRB2PRBMap, VRB2PRBMapSize);
       fillDlDciPayload(dlDciPtr->payload, &bytePos, &bitPos,\
-           modNCodScheme, modNCodSchemeSize);
+            modNCodScheme, modNCodSchemeSize);
       fillDlDciPayload(dlDciPtr->payload, &bytePos, &bitPos,\
-           ndi, ndiSize);
+            ndi, ndiSize);
       fillDlDciPayload(dlDciPtr->payload, &bytePos, &bitPos,\
-           redundancyVer, redundancyVerSize);
+            redundancyVer, redundancyVerSize);
       fillDlDciPayload(dlDciPtr->payload, &bytePos, &bitPos,\
-           redundancyVer, redundancyVerSize);
+            redundancyVer, redundancyVerSize);
       fillDlDciPayload(dlDciPtr->payload, &bytePos, &bitPos,\
-           harqProcessNum, harqProcessNumSize);
+            harqProcessNum, harqProcessNumSize);
       fillDlDciPayload(dlDciPtr->payload, &bytePos, &bitPos,\
-           dlAssignmentIdx, dlAssignmentIdxSize);
+            dlAssignmentIdx, dlAssignmentIdxSize);
       fillDlDciPayload(dlDciPtr->payload, &bytePos, &bitPos,\
-           pucchTpc, pucchTpcSize);
+            pucchTpc, pucchTpcSize);
       fillDlDciPayload(dlDciPtr->payload, &bytePos, &bitPos,\
-           pucchResoInd, pucchResoIndSize);
+            pucchResoInd, pucchResoIndSize);
       fillDlDciPayload(dlDciPtr->payload, &bytePos, &bitPos,\
-           harqFeedbackInd, harqFeedbackIndSize);
+            harqFeedbackInd, harqFeedbackIndSize);
    }
-} /* fillMsg4DlDciPdu */
+}
 
 /*******************************************************************
  *
@@ -2716,35 +2948,34 @@ uint8_t fillPdcchPdu(fapi_dl_tti_req_pdu_t *dlTtiReqPdu, DlSchedInfo *dlInfo, \
         bwp = &dlInfo->rarAlloc->bwp;
         fillRarDlDciPdu(dlTtiReqPdu->pdu.pdcch_pdu.dlDci, pdcchInfo);
       }
-      else if(rntiType == TC_RNTI_TYPE)
+      else if(rntiType == TC_RNTI_TYPE || rntiType == C_RNTI_TYPE)
       {
-        pdcchInfo = &dlInfo->msg4Alloc->msg4PdcchCfg;
-        bwp = &dlInfo->msg4Alloc->bwp;
-        fillMsg4DlDciPdu(dlTtiReqPdu->pdu.pdcch_pdu.dlDci, pdcchInfo,\
-              &dlInfo->msg4Alloc->msg4Info);
+         pdcchInfo = &dlInfo->dlMsgAlloc->dlMsgPdcchCfg;
+        bwp = &dlInfo->dlMsgAlloc->bwp;
+         fillDlMsgDlDciPdu(dlTtiReqPdu->pdu.pdcch_pdu.dlDci, pdcchInfo,\
+           &dlInfo->dlMsgAlloc->dlMsgInfo);
       }
       else
       {
-        DU_LOG("\nLWR_MAC: Failed filling PDCCH Pdu");
-        return RFAILED;;
+        DU_LOG("\nERROR  -->  LWR_MAC: Failed filling PDCCH Pdu");
+        return RFAILED;
       }
       dlTtiReqPdu->pduType = PDCCH_PDU_TYPE;
       dlTtiReqPdu->pdu.pdcch_pdu.bwpSize = bwp->freqAlloc.numPrb;
       dlTtiReqPdu->pdu.pdcch_pdu.bwpStart = bwp->freqAlloc.startPrb;
       dlTtiReqPdu->pdu.pdcch_pdu.subCarrierSpacing = bwp->subcarrierSpacing; 
       dlTtiReqPdu->pdu.pdcch_pdu.cyclicPrefix = bwp->cyclicPrefix; 
-      dlTtiReqPdu->pdu.pdcch_pdu.startSymbolIndex = pdcchInfo->coreset0Cfg.startSymbolIndex;
-      dlTtiReqPdu->pdu.pdcch_pdu.durationSymbols = pdcchInfo->coreset0Cfg.durationSymbols;
-      memcpy(dlTtiReqPdu->pdu.pdcch_pdu.freqDomainResource, pdcchInfo->coreset0Cfg.freqDomainResource, 6);
-      dlTtiReqPdu->pdu.pdcch_pdu.cceRegMappingType = pdcchInfo->coreset0Cfg.cceRegMappingType;
-      dlTtiReqPdu->pdu.pdcch_pdu.regBundleSize = pdcchInfo->coreset0Cfg.regBundleSize;
-      dlTtiReqPdu->pdu.pdcch_pdu.interleaverSize = pdcchInfo->coreset0Cfg.interleaverSize;
-      dlTtiReqPdu->pdu.pdcch_pdu.coreSetSize = pdcchInfo->coreset0Cfg.coreSetType;
-      dlTtiReqPdu->pdu.pdcch_pdu.shiftIndex =  pdcchInfo->coreset0Cfg.shiftIndex;
-      dlTtiReqPdu->pdu.pdcch_pdu.precoderGranularity = pdcchInfo->coreset0Cfg.precoderGranularity;
+      dlTtiReqPdu->pdu.pdcch_pdu.startSymbolIndex = pdcchInfo->coresetCfg.startSymbolIndex;
+      dlTtiReqPdu->pdu.pdcch_pdu.durationSymbols = pdcchInfo->coresetCfg.durationSymbols;
+      memcpy(dlTtiReqPdu->pdu.pdcch_pdu.freqDomainResource, pdcchInfo->coresetCfg.freqDomainResource, 6);
+      dlTtiReqPdu->pdu.pdcch_pdu.cceRegMappingType = pdcchInfo->coresetCfg.cceRegMappingType;
+      dlTtiReqPdu->pdu.pdcch_pdu.regBundleSize = pdcchInfo->coresetCfg.regBundleSize;
+      dlTtiReqPdu->pdu.pdcch_pdu.interleaverSize = pdcchInfo->coresetCfg.interleaverSize;
+      dlTtiReqPdu->pdu.pdcch_pdu.shiftIndex =  pdcchInfo->coresetCfg.shiftIndex;
+      dlTtiReqPdu->pdu.pdcch_pdu.precoderGranularity = pdcchInfo->coresetCfg.precoderGranularity;
       dlTtiReqPdu->pdu.pdcch_pdu.numDlDci = pdcchInfo->numDlDci;
       dlTtiReqPdu->pdu.pdcch_pdu.coreSetType = coreSetType;
-
+                    
       /* Calculating PDU length. Considering only one dl dci pdu for now */
       dlTtiReqPdu->pduSize = sizeof(fapi_dl_pdcch_pdu_t);
    }
@@ -2872,12 +3103,11 @@ uint8_t calcDlTtiReqPduCount(DlSchedInfo *dlInfo)
       /* PDCCH and PDSCH PDU is filled */
       count += 2;
    }
-   if(dlInfo->msg4Alloc != NULLP)
+   if(dlInfo->dlMsgAlloc != NULLP)
    {
       /* PDCCH and PDSCH PDU is filled */
       count += 2;
    }
-
    return count;
 }
 
@@ -2908,11 +3138,10 @@ uint8_t calcTxDataReqPduCount(DlSchedInfo *dlInfo)
    {
       count++;
    }
-   if(dlInfo->msg4Alloc != NULLP)
+   if(dlInfo->dlMsgAlloc != NULLP)
    {
       count++;
    }
-
    return count;
 }
 /***********************************************************************
@@ -2933,35 +3162,45 @@ uint8_t calcTxDataReqPduCount(DlSchedInfo *dlInfo)
  * @return ROK
  *
  * ********************************************************************/
-uint8_t fillSib1TxDataReq(fapi_tx_pdu_desc_t *pduDesc,MacCellCfg *macCellCfg,
-      uint16_t pduIndex)
+uint8_t fillSib1TxDataReq(fapi_tx_pdu_desc_t *pduDesc, uint16_t pduIndex, MacCellCfg *macCellCfg,
+      PdschCfg pdschCfg)
 {
-   uint32_t pduLen = 0;
-   uint8_t *sib1TxdataValue = NULLP;
+   uint16_t payloadSize = 0;
+   uint8_t *sib1Payload = NULLP;
+   fapi_api_queue_elem_t *payloadElem = NULLP;
+#ifdef INTEL_WLS_MEM
+   void * wlsHdlr = NULLP;
+#endif
 
    pduDesc[pduIndex].pdu_index = pduIndex;
    pduDesc[pduIndex].num_tlvs = 1;
 
    /* fill the TLV */
-   /* as of now, memory is allocated from SSI, later WLS memory needs to be taken */
-   pduDesc[pduIndex].tlvs[0].tl.tag = 1; /* pointer to be sent */
-   pduDesc[pduIndex].tlvs[0].tl.length = macCellCfg->sib1Cfg.sib1PduLen;
-   LWR_MAC_ALLOC(sib1TxdataValue,macCellCfg->sib1Cfg.sib1PduLen);
-   if(sib1TxdataValue == NULLP)
+   payloadSize = pdschCfg.codeword[0].tbSize;
+   pduDesc[pduIndex].tlvs[0].tl.tag = FAPI_TX_DATA_PTR_TO_PAYLOAD_64;
+   pduDesc[pduIndex].tlvs[0].tl.length = payloadSize;
+   LWR_MAC_ALLOC(sib1Payload, payloadSize);
+   if(sib1Payload == NULLP)
    {
       return RFAILED;
    }
-   memcpy(sib1TxdataValue,macCellCfg->sib1Cfg.sib1Pdu,
-        macCellCfg->sib1Cfg.sib1PduLen);
-   pduDesc[pduIndex].tlvs[0].value = sib1TxdataValue;
+   payloadElem = (fapi_api_queue_elem_t *)sib1Payload;
+   FILL_FAPI_LIST_ELEM(payloadElem, NULLP, FAPI_VENDOR_MSG_PHY_ZBC_BLOCK_REQ, 1, \
+      macCellCfg->sib1Cfg.sib1PduLen);
+   memcpy(sib1Payload + TX_PAYLOAD_HDR_LEN, macCellCfg->sib1Cfg.sib1Pdu, macCellCfg->sib1Cfg.sib1PduLen);
 
-   /* The total length of the PDU description and   PDU data */
-   pduLen += 8; /* size of PDU length 2 bytes, PDU index 2 bytes, numTLV 4 bytes */
-   pduLen += sizeof(fapi_uint8_ptr_tlv_t); /* only 1 TLV is present */
-   pduDesc[pduIndex].pdu_length = pduLen; 
+#ifdef INTEL_WLS_MEM
+   mtGetWlsHdl(&wlsHdlr);
+   pduDesc[pduIndex].tlvs[0].value = WLS_VA2PA(wlsHdlr, sib1Payload);
+#else
+   pduDesc[pduIndex].tlvs[0].value = sib1Payload;
+#endif
+   pduDesc[pduIndex].pdu_length = payloadSize; 
 
-#ifndef INTEL_WLS   
-   MAC_FREE(sib1TxdataValue,macCellCfg->sib1Cfg.sib1PduLen);
+#ifdef INTEL_WLS_MEM   
+   addWlsBlockToFree(sib1Payload, payloadSize, (lwrMacCb.phySlotIndCntr-1));
+#else
+   LWR_MAC_FREE(sib1Payload, payloadSize);
 #endif
 
    return ROK;
@@ -2985,97 +3224,108 @@ uint8_t fillSib1TxDataReq(fapi_tx_pdu_desc_t *pduDesc,MacCellCfg *macCellCfg,
  * @return ROK
  *
  * ********************************************************************/
-uint8_t fillRarTxDataReq(fapi_tx_pdu_desc_t *pduDesc, RarInfo *rarInfo,
-      uint16_t pduIndex)
+uint8_t fillRarTxDataReq(fapi_tx_pdu_desc_t *pduDesc, uint16_t pduIndex, RarInfo *rarInfo, PdschCfg pdschCfg)
 {
-   uint32_t pduLen = 0;
-   uint8_t *rarTxdataValue = NULLP;
+   uint16_t payloadSize;
+   uint8_t  *rarPayload = NULLP;
+   fapi_api_queue_elem_t *payloadElem = NULLP;
+#ifdef INTEL_WLS_MEM
+   void * wlsHdlr = NULLP;
+#endif
 
    pduDesc[pduIndex].pdu_index = pduIndex;
    pduDesc[pduIndex].num_tlvs = 1;
 
    /* fill the TLV */
-   /* as of now, memory is allocated from SSI, later WLS memory needs to be taken */
-   pduDesc[pduIndex].tlvs[0].tl.tag = 1; /* pointer to be sent */
-   pduDesc[pduIndex].tlvs[0].tl.length = rarInfo->rarPduLen;
-   LWR_MAC_ALLOC(rarTxdataValue,rarInfo->rarPduLen);
-   if(rarTxdataValue == NULLP)
+   payloadSize = pdschCfg.codeword[0].tbSize;
+   pduDesc[pduIndex].tlvs[0].tl.tag = FAPI_TX_DATA_PTR_TO_PAYLOAD_64;
+   pduDesc[pduIndex].tlvs[0].tl.length = payloadSize;
+   LWR_MAC_ALLOC(rarPayload, payloadSize);
+   if(rarPayload == NULLP)
    {
       return RFAILED;
    }
-   memcpy(rarTxdataValue,rarInfo->rarPdu,rarInfo->rarPduLen);
-   pduDesc[pduIndex].tlvs[0].value = rarTxdataValue;
-
-   /* The total length of the PDU description and   PDU data */
-   pduLen += 8; /* size of PDU length 2 bytes, PDU index 2 bytes, numTLV 4 bytes */
-   pduLen += sizeof(fapi_uint8_ptr_tlv_t); /* only 1 TLV is present */
-   pduDesc[pduIndex].pdu_length = pduLen; 
+   payloadElem = (fapi_api_queue_elem_t *)rarPayload;
+   FILL_FAPI_LIST_ELEM(payloadElem, NULLP, FAPI_VENDOR_MSG_PHY_ZBC_BLOCK_REQ, 1, rarInfo->rarPduLen);
+   memcpy(rarPayload + TX_PAYLOAD_HDR_LEN, rarInfo->rarPdu, rarInfo->rarPduLen);
 
-   /* TODO: The pointer value which was stored, needs to be free-ed at PHY *
-    * But since we did not implement WLS, this has to be done here
-    */
-#ifndef INTEL_WLS   
-   MAC_FREE(rarTxdataValue,rarInfo->rarPduLen);
+#ifdef INTEL_WLS_MEM
+   mtGetWlsHdl(&wlsHdlr);
+   pduDesc[pduIndex].tlvs[0].value = WLS_VA2PA(wlsHdlr, rarPayload);
+#else
+   pduDesc[pduIndex].tlvs[0].value = rarPayload;
 #endif
+   pduDesc[pduIndex].pdu_length = payloadSize;
 
+#ifdef INTEL_WLS_MEM
+   addWlsBlockToFree(rarPayload, payloadSize, (lwrMacCb.phySlotIndCntr-1));
+#else
+   LWR_MAC_FREE(rarPayload, payloadSize);
+#endif
    return ROK;
 }
 
 /***********************************************************************
  *
- * @brief fills the Msg4 TX-DATA request message
+ * @brief fills the DL dedicated Msg TX-DATA request message
  *
  * @details
  *
- *    Function : fillMsg4TxDataReq
+ *    Function : fillDlMsgTxDataReq
  *
  *    Functionality:
- *         - fills the Msg4 TX-DATA request message
+ *         - fills the Dl Dedicated Msg TX-DATA request message
  *
  * @params[in]    fapi_tx_pdu_desc_t *pduDesc
- * @params[in]    Msg4Info *msg4Info
+ * @params[in]    DlMsgInfo *dlMsgInfo
  * @params[in]    uint32_t *msgLen
  * @params[in]    uint16_t pduIndex
  * @return ROK
  *
  * ********************************************************************/
-uint8_t fillMsg4TxDataReq(fapi_tx_pdu_desc_t *pduDesc, Msg4Info *msg4Info,
-      uint16_t pduIndex)
+uint8_t fillDlMsgTxDataReq(fapi_tx_pdu_desc_t *pduDesc, uint16_t pduIndex, DlMsgInfo *dlMsgInfo, PdschCfg pdschCfg)
 {
-   uint32_t pduLen = 0;
-   uint8_t *msg4TxDataValue = NULLP;
+   uint16_t payloadSize;
+   uint8_t  *dlMsgPayload = NULLP;
+   fapi_api_queue_elem_t *payloadElem = NULLP;
+#ifdef INTEL_WLS_MEM
+   void * wlsHdlr = NULLP;
+#endif
 
    pduDesc[pduIndex].pdu_index = pduIndex;
    pduDesc[pduIndex].num_tlvs = 1;
 
    /* fill the TLV */
-   /* as of now, memory is allocated from SSI, later WLS memory needs to be taken */
-   pduDesc[pduIndex].tlvs[0].tl.tag = 1; /* pointer to be sent */
-   pduDesc[pduIndex].tlvs[0].tl.length = msg4Info->msg4PduLen;
-   LWR_MAC_ALLOC(msg4TxDataValue, msg4Info->msg4PduLen);
-   if(msg4TxDataValue == NULLP)
+   payloadSize = pdschCfg.codeword[0].tbSize;
+   pduDesc[pduIndex].tlvs[0].tl.tag = FAPI_TX_DATA_PTR_TO_PAYLOAD_64;
+   pduDesc[pduIndex].tlvs[0].tl.length = payloadSize;
+   LWR_MAC_ALLOC(dlMsgPayload, payloadSize);
+   if(dlMsgPayload == NULLP)
    {
       return RFAILED;
    }
-   memcpy(msg4TxDataValue, msg4Info->msg4Pdu, msg4Info->msg4PduLen);
-   pduDesc[pduIndex].tlvs[0].value = msg4TxDataValue;
-
-   /* The total length of the PDU description and PDU data */
-   pduLen += 8; /* size of PDU length 2 bytes, PDU index 2 bytes, numTLV 4 bytes */
-   pduLen += sizeof(fapi_uint8_ptr_tlv_t); /* only 1 TLV is present */
-   pduDesc[pduIndex].pdu_length = pduLen; 
+   payloadElem = (fapi_api_queue_elem_t *)dlMsgPayload;
+   FILL_FAPI_LIST_ELEM(payloadElem, NULLP, FAPI_VENDOR_MSG_PHY_ZBC_BLOCK_REQ, 1, dlMsgInfo->dlMsgPduLen);
+   memcpy(dlMsgPayload + TX_PAYLOAD_HDR_LEN, dlMsgInfo->dlMsgPdu, dlMsgInfo->dlMsgPduLen);
 
-   /* TODO: The pointer value which was stored, needs to be free-ed at PHY *
-    * But since we did not implement WLS, this has to be done here
-    */
-#ifndef INTEL_WLS   
-   MAC_FREE(msg4TxDataValue, msg4Info->msg4PduLen);
+#ifdef INTEL_WLS_MEM
+   mtGetWlsHdl(&wlsHdlr);
+   pduDesc[pduIndex].tlvs[0].value = WLS_VA2PA(wlsHdlr, dlMsgPayload);
+#else
+   pduDesc[pduIndex].tlvs[0].value = dlMsgPayload;
 #endif
+   pduDesc[pduIndex].pdu_length = payloadSize;
 
+#ifdef INTEL_WLS_MEM
+   addWlsBlockToFree(dlMsgPayload, payloadSize, (lwrMacCb.phySlotIndCntr-1));
+#else
+   LWR_MAC_FREE(dlMsgPayload, payloadSize);
+#endif
    return ROK;
 }
 
 #endif /* FAPI */
+
 /*******************************************************************
  *
  * @brief Sends DL TTI Request to PHY
@@ -3095,41 +3345,62 @@ uint8_t fillMsg4TxDataReq(fapi_tx_pdu_desc_t *pduDesc, Msg4Info *msg4Info,
 uint16_t fillDlTtiReq(SlotIndInfo currTimingInfo)
 {
 #ifdef INTEL_FAPI
-   uint8_t idx;
+   uint8_t idx =0;
    uint8_t nPdu = 0;
    uint8_t numPduEncoded = 0;
-   uint16_t cellIdx;
+   uint16_t cellIdx =0;
    uint16_t pduIndex = 0;
-   uint32_t msgLen = 0;
 
-   fapi_dl_tti_req_t *dlTtiReq = NULLP;
    SlotIndInfo dlTtiReqTimingInfo;
-
    MacDlSlot *currDlSlot = NULLP;
    MacCellCfg macCellCfg;
-   memset(&macCellCfg, 0, sizeof(MacCellCfg));
    RntiType rntiType;
+   fapi_dl_tti_req_t *dlTtiReq = NULLP;
+   fapi_msg_header_t *msgHeader = NULLP;
+   p_fapi_api_queue_elem_t dlTtiElem;
+   p_fapi_api_queue_elem_t headerElem;
 
    if(lwrMacCb.phyState == PHY_STATE_RUNNING)
    {
       GET_CELL_IDX(currTimingInfo.cellId, cellIdx);
       /* consider phy delay */
-      ADD_DELTA_TO_TIME(currTimingInfo,dlTtiReqTimingInfo,PHY_DELTA);
+      ADD_DELTA_TO_TIME(currTimingInfo,dlTtiReqTimingInfo,PHY_DELTA_DL);
+      dlTtiReqTimingInfo.cellId = currTimingInfo.cellId;
 
       macCellCfg = macCb.macCell[cellIdx]->macCellCfg;
 
       currDlSlot = &macCb.macCell[cellIdx]->dlSlot[dlTtiReqTimingInfo.slot]; 
-      nPdu = calcDlTtiReqPduCount(&currDlSlot->dlInfo);
-      LWR_MAC_ALLOC(dlTtiReq, sizeof(fapi_dl_tti_req_t));
-      if(dlTtiReq != NULLP)
+
+      LWR_MAC_ALLOC(dlTtiElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_dl_tti_req_t)));
+      if(dlTtiElem)
       {
+         FILL_FAPI_LIST_ELEM(dlTtiElem, NULLP, FAPI_DL_TTI_REQUEST, 1, \
+           sizeof(fapi_dl_tti_req_t));
+
+        /* Fill message header */
+        LWR_MAC_ALLOC(headerElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_msg_header_t)));
+        if(!headerElem)
+        {
+           DU_LOG("\nERROR  -->  LWR_MAC: Memory allocation failed for header in DL TTI req");
+           LWR_MAC_FREE(dlTtiElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_dl_tti_req_t)));
+           return RFAILED;
+        }
+        FILL_FAPI_LIST_ELEM(headerElem, dlTtiElem, FAPI_VENDOR_MSG_HEADER_IND, 1, \
+              sizeof(fapi_msg_header_t));
+        msgHeader = (fapi_msg_header_t *)(headerElem + 1);
+        msgHeader->num_msg = 1;
+        msgHeader->handle = 0;
+
+         /* Fill Dl TTI Request */
+        dlTtiReq = (fapi_dl_tti_req_t *)(dlTtiElem +1);
         memset(dlTtiReq, 0, sizeof(fapi_dl_tti_req_t));
+        fillMsgHeader(&dlTtiReq->header, FAPI_DL_TTI_REQUEST, sizeof(fapi_dl_tti_req_t));
+
         dlTtiReq->sfn  = dlTtiReqTimingInfo.sfn;
         dlTtiReq->slot = dlTtiReqTimingInfo.slot;
         dlTtiReq->nPdus = calcDlTtiReqPduCount(&currDlSlot->dlInfo);  /* get total Pdus */
         nPdu = dlTtiReq->nPdus;
         dlTtiReq->nGroup = 0;
-
         if(dlTtiReq->nPdus > 0)
         {
            if(currDlSlot->dlInfo.isBroadcastPres)
@@ -3145,9 +3416,9 @@ uint16_t fillDlTtiReq(SlotIndInfo currTimingInfo)
                        numPduEncoded++;
                     }
                  }
-                 printf("\033[1;31m");
-                 DU_LOG("\nLWR_MAC: MIB sent..");
-                 printf("\033[0m");
+                 DU_LOG("\033[1;31m");
+                 DU_LOG("\nDEBUG  -->  LWR_MAC: MIB sent..");
+                 DU_LOG("\033[0m");
               }
               if(currDlSlot->dlInfo.brdcstAlloc.sib1Trans)
               {
@@ -3165,9 +3436,9 @@ uint16_t fillDlTtiReq(SlotIndInfo currTimingInfo)
                     pduIndex++;
                     numPduEncoded++;
                  }
-                 printf("\033[1;34m");
-                 DU_LOG("\nLWR_MAC: SIB1 sent...");
-                 printf("\033[0m");
+                 DU_LOG("\033[1;34m");
+                  DU_LOG("\nDEBUG  -->  LWR_MAC: SIB1 sent...");
+                 DU_LOG("\033[0m");
               }
            }
            if(currDlSlot->dlInfo.rarAlloc != NULLP)
@@ -3184,48 +3455,76 @@ uint16_t fillDlTtiReq(SlotIndInfo currTimingInfo)
               numPduEncoded++;
               pduIndex++;
 
-              printf("\033[1;32m");
-              DU_LOG("\nLWR_MAC: RAR sent...");
-              printf("\033[0m");
+              DU_LOG("\033[1;32m");
+              DU_LOG("\nDEBUG  -->  LWR_MAC: RAR sent...");
+              DU_LOG("\033[0m");
            }
-           if(currDlSlot->dlInfo.msg4Alloc != NULLP)
+           if(currDlSlot->dlInfo.dlMsgAlloc != NULLP)
            {
-              /* Filling Msg4 param */
-              rntiType = TC_RNTI_TYPE;
-              fillPdcchPdu(&dlTtiReq->pdus[numPduEncoded], \
-                    &currDlSlot->dlInfo, rntiType, CORESET_TYPE0);
-              numPduEncoded++;
-              fillPdschPdu(&dlTtiReq->pdus[numPduEncoded],
-                    &currDlSlot->dlInfo.msg4Alloc->msg4PdschCfg,
-                    currDlSlot->dlInfo.msg4Alloc->bwp,
-                    pduIndex);
-              numPduEncoded++;
-              pduIndex++;
-
-              printf("\033[1;32m");
-              DU_LOG("\nLWR_MAC: MSG4 sent...");
-              printf("\033[0m");
+              if(currDlSlot->dlInfo.dlMsgAlloc->dlMsgInfo.dlMsgPdu != NULLP)
+              {
+                 /* Filling Msg4 param */
+                 DU_LOG("\033[1;32m");
+                 if(currDlSlot->dlInfo.dlMsgAlloc->dlMsgInfo.isMsg4Pdu)
+                 {
+                    rntiType = TC_RNTI_TYPE;
+                    fillPdcchPdu(&dlTtiReq->pdus[numPduEncoded], \
+                          &currDlSlot->dlInfo, rntiType, CORESET_TYPE0);
+                    DU_LOG("\nDEBUG  -->  LWR_MAC: MSG4 sent...");
+                 }
+                 else
+                 { 
+                    /* Filling other DL msg params */
+                    rntiType = C_RNTI_TYPE;
+                    fillPdcchPdu(&dlTtiReq->pdus[numPduEncoded], \
+                          &currDlSlot->dlInfo, rntiType, CORESET_TYPE1);
+                    DU_LOG("\nDEBUG  -->  LWR_MAC: DL MSG sent...");
+                  }
+                 DU_LOG("\033[0m");
+
+                 numPduEncoded++;
+                 fillPdschPdu(&dlTtiReq->pdus[numPduEncoded],
+                       &currDlSlot->dlInfo.dlMsgAlloc->dlMsgPdschCfg,
+                       currDlSlot->dlInfo.dlMsgAlloc->bwp,
+                       pduIndex);
+                 numPduEncoded++;
+                 pduIndex++;
+              }
+               else
+              {
+                  MAC_FREE(currDlSlot->dlInfo.dlMsgAlloc, sizeof(DlMsgAlloc));
+                 currDlSlot->dlInfo.dlMsgAlloc = NULLP;
+              }
            }
-           msgLen = sizeof(fapi_dl_tti_req_t) - sizeof(fapi_msg_t);
-           fillMsgHeader(&dlTtiReq->header, FAPI_DL_TTI_REQUEST, msgLen);
-           LwrMacSendToPhy(dlTtiReq->header.msg_id, sizeof(fapi_dl_tti_req_t), \
-                 (void *)dlTtiReq);
 
+#ifdef ODU_SLOT_IND_DEBUG_LOG      
+           DU_LOG("\nDEBUG  -->  LWR_MAC: Sending DL TTI Request");
+#endif     
+           /* Intel L1 expects UL_TTI.request following DL_TTI.request */
+           msgHeader->num_msg++;
+            fillUlTtiReq(currTimingInfo, dlTtiElem);
            /* send Tx-DATA req message */
-           sendTxDataReq(currTimingInfo, &currDlSlot->dlInfo);
+           msgHeader->num_msg++;
+           sendTxDataReq(dlTtiReqTimingInfo, &currDlSlot->dlInfo, dlTtiElem->p_next);
+            LwrMacSendToL1(headerElem);
         }
         else
         {
-           msgLen = sizeof(fapi_dl_tti_req_t) - sizeof(fapi_msg_t);
-           fillMsgHeader(&dlTtiReq->header, FAPI_DL_TTI_REQUEST, msgLen);
-           LwrMacSendToPhy(dlTtiReq->header.msg_id, sizeof(fapi_dl_tti_req_t), (void *)dlTtiReq);
+#ifdef ODU_SLOT_IND_DEBUG_LOG      
+           DU_LOG("\nDEBUG  -->  LWR_MAC: Sending DL TTI Request");
+#endif     
+
+           /* Intel L1 expects UL_TTI.request following DL_TTI.request */
+           msgHeader->num_msg++;
+           fillUlTtiReq(currTimingInfo, dlTtiElem);
+            LwrMacSendToL1(headerElem);
         }
         memset(currDlSlot, 0, sizeof(MacDlSlot));
         return ROK;
       }
       else
       {
-        DU_LOG("\nLWR_MAC: Failed to allocate memory for DL TTI Request");
+        DU_LOG("\nERROR  -->  LWR_MAC: Failed to allocate memory for DL TTI Request");
         memset(currDlSlot, 0, sizeof(MacDlSlot));
         return RFAILED;
       }
@@ -3255,15 +3554,14 @@ uint16_t fillDlTtiReq(SlotIndInfo currTimingInfo)
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint16_t sendTxDataReq(SlotIndInfo currTimingInfo, DlSchedInfo *dlInfo)
+uint16_t sendTxDataReq(SlotIndInfo currTimingInfo, DlSchedInfo *dlInfo, p_fapi_api_queue_elem_t prevElem)
 {
 #ifdef INTEL_FAPI
    uint8_t nPdu = 0;
    uint16_t cellIdx;
-   uint32_t msgLen = 0;
    uint16_t pduIndex = 0;
-   uint32_t txDataReqMsgSize = 0;
-   fapi_tx_data_req_t *txDataReq = NULLP;
+   fapi_tx_data_req_t       *txDataReq =NULLP;
+   p_fapi_api_queue_elem_t  txDataElem = 0;
 
    GET_CELL_IDX(currTimingInfo.cellId, cellIdx);
 
@@ -3271,63 +3569,55 @@ uint16_t sendTxDataReq(SlotIndInfo currTimingInfo, DlSchedInfo *dlInfo)
    nPdu = calcTxDataReqPduCount(dlInfo);
    if(nPdu > 0)
    {
-      txDataReqMsgSize = sizeof(fapi_tx_data_req_t);
-      if(dlInfo->brdcstAlloc.sib1Trans)
+      LWR_MAC_ALLOC(txDataElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_tx_data_req_t)));
+      if(txDataElem == NULLP)
       {
-        txDataReqMsgSize += macCb.macCell[cellIdx]->macCellCfg.sib1Cfg.sib1PduLen;
-      }
-      if(dlInfo->rarAlloc != NULLP)
-      {
-        txDataReqMsgSize += dlInfo->rarAlloc->rarInfo.rarPduLen;
-      }
-      if(dlInfo->msg4Alloc != NULLP)
-      {
-        txDataReqMsgSize += dlInfo->msg4Alloc->msg4Info.msg4PduLen;
-      }
-
-      LWR_MAC_ALLOC(txDataReq, txDataReqMsgSize);
-      if(txDataReq == NULLP)
-      {
-        DU_LOG("\nLWR_MAC: Failed to allocate memory for TX data Request");
+        DU_LOG("\nERROR  -->  LWR_MAC: Failed to allocate memory for TX data Request");
         return RFAILED;
       }
 
-      memset(txDataReq, 0, txDataReqMsgSize);
+      FILL_FAPI_LIST_ELEM(txDataElem, NULLP, FAPI_TX_DATA_REQUEST, 1, \
+          sizeof(fapi_tx_data_req_t));
+      txDataReq = (fapi_tx_data_req_t *)(txDataElem +1);
+      memset(txDataReq, 0, sizeof(fapi_tx_data_req_t));
+      fillMsgHeader(&txDataReq->header, FAPI_TX_DATA_REQUEST, sizeof(fapi_tx_data_req_t));
+
       txDataReq->sfn  = currTimingInfo.sfn;
       txDataReq->slot = currTimingInfo.slot;
       if(dlInfo->brdcstAlloc.sib1Trans)
       {
-        fillSib1TxDataReq(txDataReq->pdu_desc,
-              &macCb.macCell[cellIdx]->macCellCfg, pduIndex);
+        fillSib1TxDataReq(txDataReq->pdu_desc, pduIndex, &macCb.macCell[cellIdx]->macCellCfg, \
+           dlInfo->brdcstAlloc.sib1Alloc.sib1PdschCfg);
         pduIndex++;
         txDataReq->num_pdus++;
       }
       if(dlInfo->rarAlloc != NULLP)
       {
-        fillRarTxDataReq(txDataReq->pdu_desc, &dlInfo->rarAlloc->rarInfo, pduIndex);
+        fillRarTxDataReq(txDataReq->pdu_desc, pduIndex, &dlInfo->rarAlloc->rarInfo,\
+           dlInfo->rarAlloc->rarPdschCfg);
         pduIndex++;
         txDataReq->num_pdus++;
 
         MAC_FREE(dlInfo->rarAlloc,sizeof(RarAlloc));
         dlInfo->rarAlloc = NULLP;
       }
-      if(dlInfo->msg4Alloc != NULLP && dlInfo->msg4Alloc->msg4Info.msg4Pdu != NULLP)
+      if(dlInfo->dlMsgAlloc != NULLP)
       {
-        fillMsg4TxDataReq(txDataReq->pdu_desc, &dlInfo->msg4Alloc->\
-              msg4Info, pduIndex);
-        pduIndex++;
-        txDataReq->num_pdus++;
-
-        MAC_FREE(dlInfo->msg4Alloc->msg4Info.msg4Pdu,\
-              dlInfo->msg4Alloc->msg4Info.msg4PduLen);
-        dlInfo->msg4Alloc->msg4Info.msg4Pdu = NULLP;
-        MAC_FREE(dlInfo->msg4Alloc,sizeof(Msg4Alloc));
-        dlInfo->msg4Alloc = NULLP;
+         fillDlMsgTxDataReq(txDataReq->pdu_desc, pduIndex, &dlInfo->dlMsgAlloc->dlMsgInfo,\
+           dlInfo->dlMsgAlloc->dlMsgPdschCfg);
+         pduIndex++;
+         txDataReq->num_pdus++;
+
+         MAC_FREE(dlInfo->dlMsgAlloc->dlMsgInfo.dlMsgPdu,\
+            dlInfo->dlMsgAlloc->dlMsgInfo.dlMsgPduLen);
+         dlInfo->dlMsgAlloc->dlMsgInfo.dlMsgPdu = NULLP;
+         MAC_FREE(dlInfo->dlMsgAlloc, sizeof(DlMsgAlloc));
+         dlInfo->dlMsgAlloc = NULLP;
       }
-      msgLen = txDataReqMsgSize - sizeof(fapi_msg_t);
-      fillMsgHeader(&txDataReq->header, FAPI_TX_DATA_REQUEST, msgLen);
-      LwrMacSendToPhy(txDataReq->header.msg_id, txDataReqMsgSize, \
-           (void *)txDataReq);
+
+      /* Fill message header */
+      DU_LOG("\nDEBUG  -->  LWR_MAC: Sending TX DATA Request");
+      prevElem->p_next = txDataElem;
    }
 #endif
    return ROK;
@@ -3451,6 +3741,21 @@ void fillPrachPdu(fapi_ul_tti_req_pdu_t *ulTtiReqPdu, MacCellCfg *macCellCfg, Ma
    }
 }
 
+/*******************************************************************
+ *
+ * @brief Filling PUSCH PDU in UL TTI Request
+ *
+ * @details
+ *
+ *    Function : fillPuschPdu
+ *
+ *    Functionality: Filling PUSCH PDU in UL TTI Request
+ *
+ * @params[in] 
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
 void fillPuschPdu(fapi_ul_tti_req_pdu_t *ulTtiReqPdu, MacCellCfg *macCellCfg, MacUlSlot *currUlSlot)
 {
    if(ulTtiReqPdu != NULLP)
@@ -3468,10 +3773,9 @@ void fillPuschPdu(fapi_ul_tti_req_pdu_t *ulTtiReqPdu, MacCellCfg *macCellCfg, Ma
       ulTtiReqPdu->pdu.pusch_pdu.cyclicPrefix = \
          macCellCfg->initialUlBwp.bwp.cyclicPrefix;
       ulTtiReqPdu->pdu.pusch_pdu.targetCodeRate = 308;
-      ulTtiReqPdu->pdu.pusch_pdu.qamModOrder = 2;
-      ulTtiReqPdu->pdu.pusch_pdu.mcsIndex = \
-         currUlSlot->ulInfo.schPuschInfo.tbInfo.mcs;
-      ulTtiReqPdu->pdu.pusch_pdu.mcsTable = 0;
+      ulTtiReqPdu->pdu.pusch_pdu.qamModOrder = currUlSlot->ulInfo.schPuschInfo.tbInfo.qamOrder;
+      ulTtiReqPdu->pdu.pusch_pdu.mcsIndex = currUlSlot->ulInfo.schPuschInfo.tbInfo.mcs;
+      ulTtiReqPdu->pdu.pusch_pdu.mcsTable = currUlSlot->ulInfo.schPuschInfo.tbInfo.mcsTable;
       ulTtiReqPdu->pdu.pusch_pdu.transformPrecoding = 1;
       ulTtiReqPdu->pdu.pusch_pdu.dataScramblingId = currUlSlot->ulInfo.cellId;
       ulTtiReqPdu->pdu.pusch_pdu.nrOfLayers = 1;
@@ -3516,6 +3820,21 @@ void fillPuschPdu(fapi_ul_tti_req_pdu_t *ulTtiReqPdu, MacCellCfg *macCellCfg, Ma
    }
 }
 
+/*******************************************************************
+ *
+ * @brief Fill PUCCH PDU in Ul TTI Request
+ *
+ * @details
+ *
+ *    Function : fillPucchPdu
+ *
+ *    Functionality: Fill PUCCH PDU in Ul TTI Request
+ *
+ * @params[in] 
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
 void fillPucchPdu(fapi_ul_tti_req_pdu_t *ulTtiReqPdu, MacCellCfg *macCellCfg,\
       MacUlSlot *currUlSlot)
 {
@@ -3532,22 +3851,25 @@ void fillPucchPdu(fapi_ul_tti_req_pdu_t *ulTtiReqPdu, MacCellCfg *macCellCfg,\
       ulTtiReqPdu->pdu.pucch_pdu.cyclicPrefix = macCellCfg->initialUlBwp.bwp.cyclicPrefix;
       ulTtiReqPdu->pdu.pucch_pdu.formatType   = currUlSlot->ulInfo.schPucchInfo.pucchFormat; /* Supporting PUCCH Format 0 */
       ulTtiReqPdu->pdu.pucch_pdu.multiSlotTxIndicator = 0; /* No Multi Slot transmission */
-      ulTtiReqPdu->pdu.pucch_pdu.pi2Bpsk              = 0; /* Disabled */
+      
       ulTtiReqPdu->pdu.pucch_pdu.prbStart     = currUlSlot->ulInfo.schPucchInfo.fdAlloc.startPrb;
       ulTtiReqPdu->pdu.pucch_pdu.prbSize      = currUlSlot->ulInfo.schPucchInfo.fdAlloc.numPrb;
       ulTtiReqPdu->pdu.pucch_pdu.startSymbolIndex = currUlSlot->ulInfo.schPucchInfo.tdAlloc.startSymb;
       ulTtiReqPdu->pdu.pucch_pdu.nrOfSymbols  = currUlSlot->ulInfo.schPucchInfo.tdAlloc.numSymb;
-      ulTtiReqPdu->pdu.pucch_pdu.freqHopFlag  = 0; /* Disabled */
-      ulTtiReqPdu->pdu.pucch_pdu.secondHopPrb = 0;
+      ulTtiReqPdu->pdu.pucch_pdu.freqHopFlag  = currUlSlot->ulInfo.schPucchInfo.intraFreqHop;
+      ulTtiReqPdu->pdu.pucch_pdu.secondHopPrb = currUlSlot->ulInfo.schPucchInfo.secondPrbHop;
       ulTtiReqPdu->pdu.pucch_pdu.groupHopFlag = 0;     
       ulTtiReqPdu->pdu.pucch_pdu.sequenceHopFlag = 0;
       ulTtiReqPdu->pdu.pucch_pdu.hoppingId    = 0;
-      ulTtiReqPdu->pdu.pucch_pdu.initialCyclicShift = 0;
+
+      ulTtiReqPdu->pdu.pucch_pdu.initialCyclicShift = currUlSlot->ulInfo.schPucchInfo.initialCyclicShift;
+
       ulTtiReqPdu->pdu.pucch_pdu.dataScramblingId = 0; /* Valid for Format 2, 3, 4 */
-      ulTtiReqPdu->pdu.pucch_pdu.timeDomainOccIdx = 0; /* Valid for Format 1 */
-      ulTtiReqPdu->pdu.pucch_pdu.preDftOccIdx     = 0; /* Valid for Format 4 */
-      ulTtiReqPdu->pdu.pucch_pdu.preDftOccLen     = 0; /* Valid for Format 4 */
-      ulTtiReqPdu->pdu.pucch_pdu.addDmrsFlag      = 0; /* Valid for Format 3, 4 */
+      ulTtiReqPdu->pdu.pucch_pdu.timeDomainOccIdx = currUlSlot->ulInfo.schPucchInfo.timeDomOCC; 
+      ulTtiReqPdu->pdu.pucch_pdu.preDftOccIdx = currUlSlot->ulInfo.schPucchInfo.occIdx; /* Valid for Format 4 only */
+      ulTtiReqPdu->pdu.pucch_pdu.preDftOccLen = currUlSlot->ulInfo.schPucchInfo.occLen; /* Valid for Format 4 only */
+      ulTtiReqPdu->pdu.pucch_pdu.pi2Bpsk = currUlSlot->ulInfo.schPucchInfo.cmnFormatCfg.pi2BPSK;
+      ulTtiReqPdu->pdu.pucch_pdu.addDmrsFlag = currUlSlot->ulInfo.schPucchInfo.cmnFormatCfg.addDmrs;/* Valid for Format 3, 4 only */
       ulTtiReqPdu->pdu.pucch_pdu.dmrsScramblingId = 0; /* Valid for Format 2 */
       ulTtiReqPdu->pdu.pucch_pdu.dmrsCyclicShift  = 0; /* Valid for Format 4 */
       ulTtiReqPdu->pdu.pucch_pdu.srFlag           = currUlSlot->ulInfo.schPucchInfo.srFlag;
@@ -3581,19 +3903,16 @@ void fillPucchPdu(fapi_ul_tti_req_pdu_t *ulTtiReqPdu, MacCellCfg *macCellCfg,\
  *         RFAILED - failure
  *
  ******************************************************************/
-uint16_t fillUlTtiReq(SlotIndInfo currTimingInfo)
+uint16_t fillUlTtiReq(SlotIndInfo currTimingInfo, p_fapi_api_queue_elem_t prevElem)
 {
 #ifdef INTEL_FAPI
-   uint16_t   cellIdx;
+   uint16_t   cellIdx =0;
    uint8_t    pduIdx = -1;
-   uint32_t   msgLen = 0;
-   uint32_t   msgSize = 0;
-
-   fapi_ul_tti_req_t *ulTtiReq = NULLP;
    SlotIndInfo ulTtiReqTimingInfo;
-
    MacUlSlot *currUlSlot = NULLP;
    MacCellCfg macCellCfg;
+   fapi_ul_tti_req_t *ulTtiReq = NULLP;
+   p_fapi_api_queue_elem_t ulTtiElem;
 
    if(lwrMacCb.phyState == PHY_STATE_RUNNING)
    {
@@ -3601,15 +3920,17 @@ uint16_t fillUlTtiReq(SlotIndInfo currTimingInfo)
       macCellCfg = macCb.macCell[cellIdx]->macCellCfg;
 
       /* add PHY delta */
-      ADD_DELTA_TO_TIME(currTimingInfo,ulTtiReqTimingInfo,PHY_DELTA);
-
-      currUlSlot = &macCb.macCell[cellIdx]->ulSlot[ulTtiReqTimingInfo.slot % MAX_SLOT_SUPPORTED];
-      msgSize = sizeof(fapi_ul_tti_req_t);
-      LWR_MAC_ALLOC(ulTtiReq, msgSize);
+      ADD_DELTA_TO_TIME(currTimingInfo,ulTtiReqTimingInfo,PHY_DELTA_UL);
+      currUlSlot = &macCb.macCell[cellIdx]->ulSlot[ulTtiReqTimingInfo.slot % MAX_SLOTS];
 
-      if(ulTtiReq != NULLP)
+      LWR_MAC_ALLOC(ulTtiElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_ul_tti_req_t)));
+      if(ulTtiElem)
       {
-        memset(ulTtiReq, 0, msgSize);
+         FILL_FAPI_LIST_ELEM(ulTtiElem, NULLP, FAPI_UL_TTI_REQUEST, 1, \
+           sizeof(fapi_ul_tti_req_t));
+        ulTtiReq = (fapi_ul_tti_req_t *)(ulTtiElem +1);
+        memset(ulTtiReq, 0, sizeof(fapi_ul_tti_req_t));
+        fillMsgHeader(&ulTtiReq->header, FAPI_UL_TTI_REQUEST, sizeof(fapi_ul_tti_req_t));
         ulTtiReq->sfn  = ulTtiReqTimingInfo.sfn;
         ulTtiReq->slot = ulTtiReqTimingInfo.slot;
         ulTtiReq->nPdus = getnPdus(ulTtiReq, currUlSlot);
@@ -3636,18 +3957,18 @@ uint16_t fillUlTtiReq(SlotIndInfo currTimingInfo)
               fillPucchPdu(&ulTtiReq->pdus[pduIdx], &macCellCfg, currUlSlot);
            }
         } 
-        msgLen = sizeof(fapi_ul_tti_req_t) - sizeof(fapi_msg_t);
-        fillMsgHeader(&ulTtiReq->header, FAPI_UL_TTI_REQUEST, msgLen);
 
-        DU_LOG("\nLWR_MAC: Sending UL TTI Request");
-        LwrMacSendToPhy(ulTtiReq->header.msg_id, msgSize, (void *)ulTtiReq);
+#ifdef ODU_SLOT_IND_DEBUG_LOG
+         DU_LOG("\nDEBUG  -->  LWR_MAC: Sending UL TTI Request");
+#endif
+        prevElem->p_next = ulTtiElem;
 
         memset(currUlSlot, 0, sizeof(MacUlSlot));
         return ROK;
       }
       else
       {
-        DU_LOG("\nLWR_MAC: Failed to allocate memory for UL TTI Request");
+        DU_LOG("\nERROR  -->  LWR_MAC: Failed to allocate memory for UL TTI Request");
         memset(currUlSlot, 0, sizeof(MacUlSlot));
         return RFAILED;
       }
@@ -3681,19 +4002,19 @@ void fillUlDciPdu(fapi_dl_dci_t *ulDciPtr, DciInfo *schDciInfo)
 {
    if(ulDciPtr != NULLP)
    {
-      uint8_t numBytes;
-      uint8_t bytePos;
-      uint8_t bitPos;
+      uint8_t numBytes =0;
+      uint8_t bytePos =0;
+      uint8_t bitPos =0;
 
-      uint8_t coreset1Size = 0;
+      uint8_t  coreset1Size = 0;
       uint16_t rbStart = 0;
       uint16_t rbLen = 0;
       uint8_t  dciFormatId = 0;
-      uint32_t freqDomResAssign;
-      uint8_t  timeDomResAssign;
-      uint8_t  freqHopFlag;
-      uint8_t  modNCodScheme;
-      uint8_t  ndi;
+      uint32_t freqDomResAssign =0;
+      uint8_t  timeDomResAssign =0;
+      uint8_t  freqHopFlag =0;
+      uint8_t  modNCodScheme =0;
+      uint8_t  ndi =0;
       uint8_t  redundancyVer = 0;
       uint8_t  harqProcessNum = 0;
       uint8_t  puschTpc = 0;
@@ -3722,7 +4043,7 @@ void fillUlDciPdu(fapi_dl_dci_t *ulDciPtr, DciInfo *schDciInfo)
       ulDciPtr->pc_and_bform.pmi_bfi[0].pmIdx = schDciInfo->dciInfo.beamPdcchInfo.prg[0].pmIdx;
       ulDciPtr->pc_and_bform.pmi_bfi[0].beamIdx[0].beamidx = schDciInfo->dciInfo.beamPdcchInfo.prg[0].beamIdx[0];
       ulDciPtr->beta_pdcch_1_0                = schDciInfo->dciInfo.txPdcchPower.powerValue;           
-      ulDciPtr->powerControlOfssetSS          = schDciInfo->dciInfo.txPdcchPower.powerControlOffsetSS;
+      ulDciPtr->powerControlOffsetSS          = schDciInfo->dciInfo.txPdcchPower.powerControlOffsetSS;
 
       /* Calculating freq domain resource allocation field value and size
        * coreset1Size = Size of coreset 1
@@ -3756,7 +4077,7 @@ void fillUlDciPdu(fapi_dl_dci_t *ulDciPtr, DciInfo *schDciInfo)
          harqProcessNum   = schDciInfo->format.format0_0.harqProcId; 
          puschTpc         = schDciInfo->format.format0_0.tpcCmd;
          ul_SlInd         = schDciInfo->format.format0_0.sUlCfgd;
-
+     
          /* Reversing bits in each DCI field */
          dciFormatId      = reverseBits(dciFormatId, dciFormatIdSize);
          freqDomResAssign = reverseBits(freqDomResAssign, freqDomResAssignSize);
@@ -3778,7 +4099,7 @@ void fillUlDciPdu(fapi_dl_dci_t *ulDciPtr, DciInfo *schDciInfo)
 
       if(numBytes > FAPI_DCI_PAYLOAD_BYTE_LEN)
       {
-         DU_LOG("\nLWR_MAC : Total bytes for DCI is more than expected");
+         DU_LOG("\nERROR  -->  LWR_MAC : Total bytes for DCI is more than expected");
          return;
       }
 
@@ -3846,7 +4167,6 @@ uint8_t fillUlDciPdcchPdu(fapi_dci_pdu_t *ulDciReqPdu, DlSchedInfo *dlInfo, uint
       ulDciReqPdu->pdcchPduConfig.cceRegMappingType = dlInfo->ulGrant->coresetCfg.cceRegMappingType;
       ulDciReqPdu->pdcchPduConfig.regBundleSize     = dlInfo->ulGrant->coresetCfg.regBundleSize;
       ulDciReqPdu->pdcchPduConfig.interleaverSize   = dlInfo->ulGrant->coresetCfg.interleaverSize;
-      ulDciReqPdu->pdcchPduConfig.coreSetSize       = dlInfo->ulGrant->coresetCfg.coreSetType;
       ulDciReqPdu->pdcchPduConfig.shiftIndex        = dlInfo->ulGrant->coresetCfg.shiftIndex;
       ulDciReqPdu->pdcchPduConfig.precoderGranularity = dlInfo->ulGrant->coresetCfg.precoderGranularity;
       ulDciReqPdu->pdcchPduConfig.numDlDci          = 1;
@@ -3877,29 +4197,32 @@ uint8_t fillUlDciPdcchPdu(fapi_dci_pdu_t *ulDciReqPdu, DlSchedInfo *dlInfo, uint
 uint16_t fillUlDciReq(SlotIndInfo currTimingInfo)
 {
 #ifdef INTEL_FAPI
-   uint8_t cellIdx;
-   uint8_t  numPduEncoded = 0;
-   uint32_t msgLen  = 0;
-   uint32_t msgSize = 0;
-
-   fapi_ul_dci_req_t *ulDciReq = NULLP;
-   SlotIndInfo ulDciReqTimingInfo;
-
-   MacDlSlot *currDlSlot = NULLP;
+   uint8_t      cellIdx =0;
+   uint8_t      numPduEncoded = 0;
+   SlotIndInfo  ulDciReqTimingInfo ={0};
+   MacDlSlot    *currDlSlot = NULLP;
+   fapi_ul_dci_req_t        *ulDciReq =NULLP;
+   fapi_msg_header_t        *msgHeader =NULLP;
+   p_fapi_api_queue_elem_t  ulDciElem;
+   p_fapi_api_queue_elem_t  headerElem;
 
    if(lwrMacCb.phyState == PHY_STATE_RUNNING)
    {
       GET_CELL_IDX(currTimingInfo.cellId, cellIdx);
       memcpy(&ulDciReqTimingInfo, &currTimingInfo, sizeof(SlotIndInfo));
-      currDlSlot = &macCb.macCell[cellIdx]->dlSlot[ulDciReqTimingInfo.slot % MAX_SLOT_SUPPORTED];
+      currDlSlot = &macCb.macCell[cellIdx]->dlSlot[ulDciReqTimingInfo.slot % MAX_SLOTS];
 
       if(currDlSlot->dlInfo.ulGrant != NULLP)
       {
-         msgSize = sizeof(fapi_ul_dci_req_t);
-         LWR_MAC_ALLOC(ulDciReq, msgSize);
-         if(ulDciReq != NULLP)
+         LWR_MAC_ALLOC(ulDciElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_ul_dci_req_t)));
+         if(ulDciElem)
         {
-            memset(ulDciReq, 0, msgSize);
+           FILL_FAPI_LIST_ELEM(ulDciElem, NULLP, FAPI_UL_DCI_REQUEST, 1, \
+              sizeof(fapi_ul_dci_req_t));
+           ulDciReq = (fapi_ul_dci_req_t *)(ulDciElem +1);
+           memset(ulDciReq, 0, sizeof(fapi_ul_dci_req_t));
+           fillMsgHeader(&ulDciReq->header, FAPI_UL_DCI_REQUEST, sizeof(fapi_ul_dci_req_t));
+
             ulDciReq->sfn  = ulDciReqTimingInfo.sfn;
             ulDciReq->slot = ulDciReqTimingInfo.slot;
             ulDciReq->numPdus = 1;  // No. of PDCCH PDUs
@@ -3911,16 +4234,29 @@ uint16_t fillUlDciReq(SlotIndInfo currTimingInfo)
               /* free UL GRANT at SCH */
               MAC_FREE(currDlSlot->dlInfo.ulGrant, sizeof(DciInfo));
               currDlSlot->dlInfo.ulGrant = NULLP;
-              /* send UL DCI to PHY */
-               msgLen = sizeof(fapi_ul_dci_req_t) - sizeof(fapi_msg_t);
-               fillMsgHeader(&ulDciReq->header, FAPI_UL_DCI_REQUEST, msgLen);
-               LwrMacSendToPhy(ulDciReq->header.msg_id, sizeof(fapi_ul_dci_req_t), (void *)ulDciReq);
-            }
 
+              /* Fill message header */
+              LWR_MAC_ALLOC(headerElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_msg_header_t)));
+              if(!headerElem)
+              {
+                 DU_LOG("\nERROR  -->  LWR_MAC: Memory allocation failed for UL DCI req header");
+                 LWR_MAC_FREE(ulDciElem, (sizeof(fapi_api_queue_elem_t) + sizeof(fapi_ul_dci_req_t)));
+                 return RFAILED;
+              }
+              FILL_FAPI_LIST_ELEM(headerElem, ulDciElem, FAPI_VENDOR_MSG_HEADER_IND, 1, \
+                 sizeof(fapi_msg_header_t));
+              msgHeader = (fapi_msg_header_t *)(headerElem + 1);
+              msgHeader->num_msg = 1;
+              msgHeader->handle = 0;
+#ifdef ODU_SLOT_IND_DEBUG_LOG
+              DU_LOG("\nDEBUG  -->  LWR_MAC: Sending UL DCI Request");
+#endif
+              LwrMacSendToL1(headerElem);
+            }
         }
          else
          {
-            DU_LOG("\nLWR_MAC: Failed to allocate memory for UL DCI Request");
+            DU_LOG("\nERROR  -->  LWR_MAC: Failed to allocate memory for UL DCI Request");
             memset(currDlSlot, 0, sizeof(MacDlSlot));
             return RFAILED;
          }
@@ -3938,6 +4274,9 @@ lwrMacFsmHdlr fapiEvtHdlr[MAX_STATE][MAX_EVENT] =
 {
    {
       /* PHY_STATE_IDLE */
+#ifdef INTEL_TIMER_MODE 
+      lwr_mac_procIqSamplesReqEvt,
+#endif
       lwr_mac_procParamReqEvt,
       lwr_mac_procParamRspEvt,
       lwr_mac_procConfigReqEvt,
@@ -3947,6 +4286,9 @@ lwrMacFsmHdlr fapiEvtHdlr[MAX_STATE][MAX_EVENT] =
    },
    {
       /* PHY_STATE_CONFIGURED */
+#ifdef INTEL_TIMER_MODE
+      lwr_mac_procInvalidEvt,
+#endif
       lwr_mac_procParamReqEvt,
       lwr_mac_procParamRspEvt,
       lwr_mac_procConfigReqEvt,
@@ -3956,6 +4298,9 @@ lwrMacFsmHdlr fapiEvtHdlr[MAX_STATE][MAX_EVENT] =
    },
    {
       /* PHY_STATE_RUNNING */
+#ifdef INTEL_TIMER_MODE
+      lwr_mac_procInvalidEvt,
+#endif
       lwr_mac_procInvalidEvt,
       lwr_mac_procInvalidEvt,
       lwr_mac_procConfigReqEvt,