X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=src%2Fdu_app%2Fdu_ue_mgr.c;h=71e87091404deba2d3329ba2d156947aa846dd77;hb=2aa3cc7f94edf59f4fdb04ad81c7a14322bde00e;hp=9c660efe069f3a206b96f06b04d1567cb85380c2;hpb=9f07d42c8d327e4009833fc4c673e4086c4e726e;p=o-du%2Fl2.git

diff --git a/src/du_app/du_ue_mgr.c b/src/du_app/du_ue_mgr.c
index 9c660efe0..71e870914 100644
--- a/src/du_app/du_ue_mgr.c
+++ b/src/du_app/du_ue_mgr.c
@@ -29,8 +29,8 @@
 #include "du_app_mac_inf.h"
 #include "du_app_rlc_inf.h"
 #include "du_cfg.h"
-#include "du_utils.h"
 #include "du_mgr.h"
+#include "du_utils.h"
 #include "du_f1ap_msg_hdl.h"
 #include "du_ue_mgr.h"
 
@@ -81,11 +81,25 @@ DuMacUeReconfigReq packMacUeReconfigReqOpts[] =
    packDuMacUeReconfigReq      /* Light weight-loose coupling */
 };
 
+DuMacRachRsrcReq packMacRachRsrcReqOpts[] = 
+{
+   packDuMacRachRsrcReq,      /* Loose coupling */
+   MacProcRachRsrcReq,        /* Tight coupling */
+   packDuMacRachRsrcReq       /* Light weight-loose coupling */
+};
+
 DuRlcDlUserDataToRlcFunc duSendRlcDlUserDataToRlcOpts[] =
 {
-   packRlcDlUserDataToRlc,        /* Loose coupling */ 
+   packRlcDlUserDataToRlc,     /* Loose coupling */ 
    RlcProcDlUserDataTransfer,  /* Tight coupling */
-   packRlcDlUserDataToRlc         /* Light weight-loose coupling */
+   packRlcDlUserDataToRlc      /* Light weight-loose coupling */
+};
+
+DuMacRachRsrcRel packMacRachRsrcRelOpts[] = 
+{
+   packDuMacRachRsrcRel,      /* Loose coupling */
+   MacProcRachRsrcRel,        /* Tight coupling */
+   packDuMacRachRsrcRel       /* Light weight-loose coupling */
 };
 
 DuMacUeDeleteReq packMacUeDeleteReqOpts[] =
@@ -1169,13 +1183,9 @@ uint8_t fillMacUeCfg(uint16_t cellId, uint8_t gnbDuUef1apId, uint16_t crnti, DuU
    bool lcIdFound = false;
    MacUeCfg *duMacDb = NULLP;
 
-   macUeCfg->cellId       = cellId;
-   if(crnti)
-   {
-      GET_UE_ID(crnti, macUeCfg->ueId);
-      macUeCfg->crnti = crnti;
-   }
-   macUeCfg->duUeF1apId = gnbDuUef1apId;
+   macUeCfg->cellId = cellId;
+   macUeCfg->ueId = gnbDuUef1apId;
+   macUeCfg->crnti = crnti;
 
    if(!ueCfgDb)
    {
@@ -1200,26 +1210,16 @@ uint8_t fillMacUeCfg(uint16_t cellId, uint8_t gnbDuUef1apId, uint16_t crnti, DuU
          macUeCfg->transmissionAction = ueCfgDb->dataTransmissionAction; 
          return ROK;
       }
-      
-      /* Fetching MacDb from DuUeCb.
-       * In case of UE hand-in, UE context is created before RRC setup. Hence
-       * crnti is not known yet. Thus, passing crnti=0 to this function.
-       * In such a case actvCellLst doesnt yet have any entry for this UE. So
-       * duMacDb will be NULL.
-       */
-      
-      if(crnti != 0)
+
+      GET_CELL_IDX(cellId, cellIdx);
+      if(duCb.actvCellLst[cellIdx])
+         duMacDb = &duCb.actvCellLst[cellIdx]->ueCb[macUeCfg->ueId-1].macUeCfg;
+      else
       {
-         GET_CELL_IDX(cellId, cellIdx);
-         if(duCb.actvCellLst[cellIdx])
-            duMacDb = &duCb.actvCellLst[cellIdx]->ueCb[macUeCfg->ueId-1].macUeCfg;
-         else
-         {
-            DU_LOG("\nERROR  -->  DU APP : Cell Id [%d] does not exist", cellId);
-            return RFAILED;
-         }
-         duMacDb->macUeCfgState = UE_CFG_INPROGRESS;
+         DU_LOG("\nERROR  -->  DU APP : Cell Id [%d] does not exist", cellId);
+         return RFAILED;
       }
+      duMacDb->macUeCfgState = UE_CFG_INPROGRESS;
       
       if(ueCfgDb->cellGrpCfg)
       {
@@ -1623,18 +1623,19 @@ uint8_t fillSnssaiInfo(Snssai *snssaiTobeSend, Snssai *snssaiDb, Snssai **oldSns
  *
  *
  *****************************************************************/
-uint8_t fillRlcUeCfg(uint16_t cellId, uint8_t ueId, DuUeCfg *ueCfgDb, RlcUeCfg *rlcUeCfg)
+uint8_t fillRlcUeCfg(uint16_t cellId, uint8_t duUeF1apId, DuUeCfg *ueCfgDb, RlcUeCfg *rlcUeCfg)
 {
    uint8_t ret, dbIdx, lcIdx, cellIdx;
    bool lcIdFound = false;
    RlcUeCfg *duRlcDb = NULLP;
 
    ret = ROK;
+   rlcUeCfg->cellId       = cellId;
+   rlcUeCfg->ueId         = duUeF1apId;
+
    if(!ueCfgDb)
    {
       /* Initial RB being Added */ 
-      rlcUeCfg->cellId       = cellId;
-      rlcUeCfg->ueId         = ueId;
       ret = fillRlcSrb1LcCfg(&rlcUeCfg->rlcLcCfg[0]);
       if(ret == ROK)
          rlcUeCfg->numLcs++;
@@ -1645,11 +1646,8 @@ uint8_t fillRlcUeCfg(uint16_t cellId, uint8_t ueId, DuUeCfg *ueCfgDb, RlcUeCfg *
    {
       /* Fetch RlcDb from DuUeCb */ 
       GET_CELL_IDX(cellId, cellIdx);
-      duRlcDb = &duCb.actvCellLst[cellIdx]->ueCb[ueId-1].rlcUeCfg;
+      duRlcDb = &duCb.actvCellLst[cellIdx]->ueCb[rlcUeCfg->ueId-1].rlcUeCfg;
       duRlcDb->rlcUeCfgState = UE_CFG_INPROGRESS;
-      /*Filling RlcUeCfg */
-      rlcUeCfg->cellId       = cellId;
-      rlcUeCfg->ueId         = ueId;
 
       for(dbIdx = 0; (dbIdx < ueCfgDb->numRlcLcs && ret == ROK); dbIdx++)
       {
@@ -1660,25 +1658,30 @@ uint8_t fillRlcUeCfg(uint16_t cellId, uint8_t ueId, DuUeCfg *ueCfgDb, RlcUeCfg *
             memset(rlcUeCfg, 0, sizeof(RlcUeCfg));
             return ret;
          }
-         /* Fill Rlc Ue Cfg List for ADD/MOD/DEL */
-         for(lcIdx = 0; lcIdx < duRlcDb->numLcs; lcIdx++)
-         { 
-            if(ueCfgDb->rlcLcCfg[dbIdx].lcId == duRlcDb->rlcLcCfg[lcIdx].lcId)
-            {
-               lcIdFound = true;
-               if((ueCfgDb->rlcLcCfg[dbIdx].configType == CONFIG_UNKNOWN)||
-                     (ueCfgDb->rlcLcCfg[dbIdx].configType == CONFIG_MOD))
+
+         if(duRlcDb)
+         {
+            /* Fill Rlc Ue Cfg List for ADD/MOD/DEL */
+            for(lcIdx = 0; lcIdx < duRlcDb->numLcs; lcIdx++)
+            { 
+               if(ueCfgDb->rlcLcCfg[dbIdx].lcId == duRlcDb->rlcLcCfg[lcIdx].lcId)
                {
-                  /* MOD */ 
-                  ueCfgDb->rlcLcCfg[dbIdx].configType = CONFIG_MOD; /* update Db for MOD type */
-                  memcpy(&rlcUeCfg->rlcLcCfg[dbIdx], &ueCfgDb->rlcLcCfg[dbIdx], sizeof(RlcBearerCfg));
-                  fillSnssaiInfo(rlcUeCfg->rlcLcCfg[dbIdx].snssai, ueCfgDb->rlcLcCfg[dbIdx].snssai,\
-                  &duRlcDb->rlcLcCfg[lcIdx].snssai,false);
+                  lcIdFound = true;
+                  if((ueCfgDb->rlcLcCfg[dbIdx].configType == CONFIG_UNKNOWN)||
+                        (ueCfgDb->rlcLcCfg[dbIdx].configType == CONFIG_MOD))
+                  {
+                     /* MOD */ 
+                     ueCfgDb->rlcLcCfg[dbIdx].configType = CONFIG_MOD; /* update Db for MOD type */
+                     memcpy(&rlcUeCfg->rlcLcCfg[dbIdx], &ueCfgDb->rlcLcCfg[dbIdx], sizeof(RlcBearerCfg));
+                     fillSnssaiInfo(rlcUeCfg->rlcLcCfg[dbIdx].snssai, ueCfgDb->rlcLcCfg[dbIdx].snssai,\
+                           &duRlcDb->rlcLcCfg[lcIdx].snssai,false);
+                  }
                }
+               else
+                  lcIdFound = false;
             }
-            else
-               lcIdFound = false;
          }
+
          if(!lcIdFound)
          {
             /* ADD/ DEL Config Type */
@@ -1737,7 +1740,7 @@ uint8_t duCreateUeCb(UeCcchCtxt *ueCcchCtxt, uint32_t gnbCuUeF1apId)
 
          /* Filling Rlc Ue Config */
          memset(&duCb.actvCellLst[cellIdx]->ueCb[ueIdx].rlcUeCfg, 0, sizeof(RlcUeCfg));
-         ret = duBuildAndSendUeCreateReqToRlc(ueCcchCtxt->cellId, ueId, \
+         ret = duBuildAndSendUeCreateReqToRlc(ueCcchCtxt->cellId, ueCcchCtxt->gnbDuUeF1apId, NULL,
                &duCb.actvCellLst[cellIdx]->ueCb[ueIdx].rlcUeCfg);
          if(ret == RFAILED)
             DU_LOG("\nERROR  -->  DU APP : Failed to send UE create request to RLC");
@@ -1812,6 +1815,130 @@ uint8_t duBuildAndSendUeCreateReqToMac(uint16_t cellId, uint8_t gnbDuUeF1apId, u
    return ret;
 }
 
+/*******************************************************************
+ *
+ * @brief Build and send RACH Resource request to MAC
+ *
+ * @details
+ *
+ *    Function : duBuildAndSendRachRsrcReqToMac
+ *    Functionality:
+ *        Build and send RACH Resource request to MAC
+ *
+ * @params[in] Cell Id
+ *             UE Id
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t duBuildAndSendRachRsrcReqToMac(uint16_t cellId, uint16_t ueId)
+{
+   uint16_t cellIdx = 0, ssbIdx = 0;
+   Pst pst;
+   MacRachRsrcReq *rachRsrcReq = NULLP;
+
+   GET_CELL_IDX(cellId, cellIdx);
+   if(duCb.actvCellLst[cellIdx] == NULLP)
+   {
+      DU_LOG("\nERROR  -->  DU APP : Cell Id [%d] not found in duBuildAndSendRachRsrcReqToMac()", cellId);
+      return RFAILED;
+   }
+
+   DU_ALLOC_SHRABL_BUF(rachRsrcReq, sizeof(MacRachRsrcReq));
+   if(!rachRsrcReq)
+   {
+      DU_LOG("\nERROR  -->  DU APP : Failed to allocate memory for RACH Resource Request in \
+            duBuildAndSendRachRsrcReqToMac()");
+      return RFAILED;
+   }
+
+   rachRsrcReq->cellId = cellId;
+   rachRsrcReq->ueId = ueId;
+   rachRsrcReq->numSsb = duCfgParam.macCellCfg.prachCfg.ssbPerRach;
+   for(ssbIdx = 0; ssbIdx < rachRsrcReq->numSsb; ssbIdx++)
+   {
+      rachRsrcReq->ssbIdx[ssbIdx] = ssbIdx;
+   }
+
+   /* Fill Pst */
+   FILL_PST_DUAPP_TO_MAC(pst, EVENT_MAC_RACH_RESOURCE_REQ);
+   
+   if(((*packMacRachRsrcReqOpts[pst.selector])(&pst, rachRsrcReq)) != ROK)
+   {
+      DU_LOG("\nERROR  -->  DU_APP : Failure in sending RACH Resource Request to MAC at \
+            duBuildAndSendRachRsrcReqToMac()");
+      DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, rachRsrcReq, sizeof(MacRachRsrcReq));
+      return RFAILED;
+   }
+
+   return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Process RACH resource response from MAC
+ *
+ * @details
+ *
+ *    Function : DuProcMacRachRsrcRsp
+ *    Functionality:
+ *        Process RACH resource response from MAC
+ *
+ * @params[in] Post structure
+ *             RACH resource response
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t DuProcMacRachRsrcRsp(Pst *pst, MacRachRsrcRsp *rachRsrcRsp)
+{
+   uint8_t  ret = RFAILED;
+   uint16_t cellIdx = 0;
+   DuCellCb *cellCb = NULLP;
+   DuUeCb   *ueCb = NULLP;
+
+   DU_LOG("\nINFO  -->  DU APP : Received RACH Resource Response from MAC. Cell ID [%d] UE ID [%d]",
+         rachRsrcRsp->cellId, rachRsrcRsp->ueId);
+
+   if(rachRsrcRsp->result == MAC_DU_APP_RSP_OK)
+   {
+      DU_LOG("\nINFO : DU APP : RACH Resource Response from MAC : Result [SUCCESS]");
+
+      /* Fetch Cell Cb */
+      GET_CELL_IDX(rachRsrcRsp->cellId, cellIdx);
+      if(duCb.actvCellLst[cellIdx] && (duCb.actvCellLst[cellIdx]->cellId == rachRsrcRsp->cellId))
+      {
+         cellCb = duCb.actvCellLst[cellIdx];
+
+         /* Fetch UE CB */
+         if(cellCb->ueCb[rachRsrcRsp->ueId-1].gnbDuUeF1apId == rachRsrcRsp->ueId)
+         {
+            ueCb = &cellCb->ueCb[rachRsrcRsp->ueId-1];
+
+            /* Store CRNTI alloted to this UE by MAC */
+            ueCb->crnti = rachRsrcRsp->newCrnti;
+
+            /* Store the assigned CF-RA resources */
+            memcpy(&ueCb->cfraResource, &rachRsrcRsp->cfraResource, sizeof(MacCfraResource));
+
+            /* RACH resources allocated to UE is sent to CU in UE Context Setup Response
+             * along with the result of UE Context setup requested by CU */
+            if((ret = BuildAndSendUeCtxtRsp(rachRsrcRsp->cellId, rachRsrcRsp->ueId)) != ROK)
+               DU_LOG("\nERROR  ->  DU APP : Failure in BuildAndSendUeCtxtRsp()");
+         }
+         else
+            DU_LOG("\nERROR  -->  DU APP : UE ID [%d] not found in DuProcMacRachRsrcRsp", rachRsrcRsp->ueId);
+      }
+      else
+         DU_LOG("\nERROR  -->  DU APP : Cell ID [%d] not found in DuProcMacRachRsrcRsp", rachRsrcRsp->cellId);
+   }
+   else
+      DU_LOG("\nINFO : DU APP : RACH Resource Response from MAC : Result [FAILURE]");
+
+   DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, rachRsrcRsp, sizeof(MacRachRsrcRsp));
+   return ret;
+}
+
 /*******************************************************************
  *
  * @brief To update DuUeCb Mac Cfg
@@ -2286,40 +2413,33 @@ uint8_t duUpdateDuUeCbCfg(uint8_t ueId, uint8_t cellId)
    DuUeCb *ueCb = NULLP;
 
    GET_CELL_IDX(cellId, cellIdx);
-   
-   if(duCb.actvCellLst[cellIdx] && (duCb.actvCellLst[cellIdx]->ueCb[ueId-1].macUeCfg.macUeCfgState == UE_RECFG_COMPLETE) &&
-      (duCb.actvCellLst[cellIdx]->ueCb[ueId-1].rlcUeCfg.rlcUeCfgState == UE_RECFG_COMPLETE))
-   {
-      ueCb = &duCb.actvCellLst[cellIdx]->ueCb[ueId-1];
+   ueCb = &duCb.actvCellLst[cellIdx]->ueCb[ueId-1];
 
-      /*Filling RLC Ue Cfg */
-      ueCb->rlcUeCfg.cellId = cellId;
-      ueCb->rlcUeCfg.ueId   = ueId;
-      ret = duUpdateRlcLcCfg(&ueCb->rlcUeCfg, ueCb->f1UeDb);
-      if(ret == ROK)
+   /*Filling RLC Ue Cfg */
+   ueCb->rlcUeCfg.cellId = cellId;
+   ueCb->rlcUeCfg.ueId   = ueId;
+   ret = duUpdateRlcLcCfg(&ueCb->rlcUeCfg, ueCb->f1UeDb);
+   if(ret == ROK)
+   {
+      /*Filling MAC Ue Cfg */
+      GET_CRNTI(crnti, ueId);
+      ueCb->macUeCfg.cellId = cellId;
+      ueCb->macUeCfg.ueId  = ueId;
+      ueCb->macUeCfg.crnti  = crnti;
+      ret = duUpdateMacCfg(&ueCb->macUeCfg, ueCb->f1UeDb);
+      if(ret == RFAILED)
+         DU_LOG("\nERROR  -->  DU APP : Failed while updating MAC LC Config at duUpdateDuUeCbCfg()");
+      else
       {
-         /*Filling MAC Ue Cfg */
-         GET_CRNTI(crnti, ueId);
-         ueCb->macUeCfg.cellId = cellId;
-         ueCb->macUeCfg.ueId  = ueId;
-         ueCb->macUeCfg.crnti  = crnti;
-         ret = duUpdateMacCfg(&ueCb->macUeCfg, ueCb->f1UeDb);
-         if(ret == RFAILED)
-            DU_LOG("\nERROR  -->  DU APP : Failed while updating MAC LC Config at duUpdateDuUeCbCfg()");
-         else
-	 {
-	    if(duUpdateTunnelCfgDb(ueId, cellId, &ueCb->f1UeDb->duUeCfg) != ROK)
-	    {
-               DU_LOG("\nERROR  -->  DU_APP : Failed to establish tunnel in duUpdateDuUeCbCfg()");
-	            return RFAILED;
-	    }
-	 }
+         if(duUpdateTunnelCfgDb(ueId, cellId, &ueCb->f1UeDb->duUeCfg) != ROK)
+         {
+            DU_LOG("\nERROR  -->  DU_APP : Failed to establish tunnel in duUpdateDuUeCbCfg()");
+            return RFAILED;
+         }
       }
-      else
-         DU_LOG("\nERROR  -->  DU APP : Failed while updating RLC LC Config at duUpdateDuUeCbCfg()");
    }
    else
-      ret = RFAILED;
+      DU_LOG("\nERROR  -->  DU APP : Failed while updating RLC LC Config at duUpdateDuUeCbCfg()");
    return ret;
 }
 
@@ -2340,64 +2460,78 @@ uint8_t duUpdateDuUeCbCfg(uint8_t ueId, uint8_t cellId)
  * ****************************************************************/
 uint8_t DuProcMacUeCfgRsp(Pst *pst, MacUeCfgRsp *cfgRsp)
 {
-   uint8_t ret = ROK, ueIdx = 0, ueId = 0;
-   DuUeCb *ueCb = NULLP;
+   uint8_t ret = ROK;
+   uint16_t cellIdx;
 
    if(cfgRsp)
    {
+      GET_CELL_IDX(cfgRsp->cellId, cellIdx);
       if(cfgRsp->result == MAC_DU_APP_RSP_OK)
       {
          if(pst->event == EVENT_MAC_UE_CREATE_RSP)
          {
-            DU_LOG("\nINFO   -->  DU APP : MAC UE Create Response : SUCCESS [DU UE F1AP ID : %d]", cfgRsp->duUeF1apId);
-            
-            for(ueIdx = 0; ueIdx < MAX_NUM_UE; ueIdx++)
-            {
-               if(duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[ueIdx].gnbDuUeF1apId == cfgRsp->duUeF1apId)
-               {
-                  ueCb = &duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[ueIdx];
-                  ueCb->macUeCfg.macUeCfgState = UE_CREATE_COMPLETE;
-                  break;
-               }
-            }
-            if(!ueCb)
+            DU_LOG("\nINFO   -->  DU APP : MAC UE Create Response : SUCCESS [DU UE F1AP ID : %d]", cfgRsp->ueId);
+
+            if(duCb.actvCellLst[cellIdx] && (duCb.actvCellLst[cellIdx]->ueCb[cfgRsp->ueId -1].gnbDuUeF1apId == cfgRsp->ueId))
             {
-               if(duCb.actvCellLst[cfgRsp->cellId -1]->hoUeCb[cfgRsp->duUeF1apId-1].gnbDuUeF1apId == cfgRsp->duUeF1apId)
+               duCb.actvCellLst[cellIdx]->ueCb[cfgRsp->ueId -1].macUeCfg.macUeCfgState = UE_CREATE_COMPLETE;
+
+              if((duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[cfgRsp->ueId -1].ueState == UE_HANDIN_IN_PROGRESS) && 
+                    (duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[cfgRsp->ueId -1].macUeCfg.macUeCfgState == UE_CREATE_COMPLETE) &&
+                     (duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[cfgRsp->ueId -1].rlcUeCfg.rlcUeCfgState == UE_CREATE_COMPLETE))
                {
-                  ueCb = &duCb.actvCellLst[cfgRsp->cellId -1]->hoUeCb[cfgRsp->duUeF1apId-1];
-                  ueCb->macUeCfg.macUeCfgState = UE_CREATE_COMPLETE;
-                  //TODO : in next gerrit
-                  //BuildAndSendUeCtxtRsp(cfgRsp->cellId, cfgRsp->ueId);
+                  if((ret = duUpdateDuUeCbCfg(cfgRsp->ueId, cfgRsp->cellId)) == ROK)
+                  {
+                     /* If UE is in handover, RACH resource needs to be requested
+                      * from MAC for CFRA */
+                     if((duBuildAndSendRachRsrcReqToMac(cfgRsp->cellId, cfgRsp->ueId)) != ROK)
+                     {
+                        DU_LOG("\nERROR  --> DU APP : Failed to send RACH Resource Request to MAC");
+                        DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, cfgRsp, sizeof(MacUeCfgRsp));
+                        return RFAILED;
+                     }
+                  }
+                  else
+                  {
+                     DU_LOG("\nERROR  ->  DU APP : Failure in updating DU UE CB");
+                     DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, cfgRsp, sizeof(MacUeCfgRsp));
+                     return RFAILED;
+                  }
                }
             }
-
          }
          else if(pst->event == EVENT_MAC_UE_RECONFIG_RSP)
          {
-            DU_LOG("\nINFO   -->  DU APP : MAC UE Reconfig Response : SUCCESS [DU UE F1AP ID : %d]", cfgRsp->duUeF1apId);
-            for(ueIdx = 0; ueIdx < MAX_NUM_UE; ueIdx++)
+            DU_LOG("\nINFO   -->  DU APP : MAC UE Reconfig Response : SUCCESS [DU UE F1AP ID : %d]", cfgRsp->ueId);
+            if(duCb.actvCellLst[cellIdx] && 
+                  (duCb.actvCellLst[cellIdx]->ueCb[cfgRsp->ueId -1].gnbDuUeF1apId == cfgRsp->ueId))
             {
-               if(duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[ueIdx].gnbDuUeF1apId == cfgRsp->duUeF1apId)
+               duCb.actvCellLst[cellIdx]->ueCb[cfgRsp->ueId -1].macUeCfg.macUeCfgState = UE_RECFG_COMPLETE;
+               if((duCb.actvCellLst[cellIdx]->ueCb[cfgRsp->ueId -1].macUeCfg.macUeCfgState == UE_RECFG_COMPLETE) &&
+                     (duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[cfgRsp->ueId -1].rlcUeCfg.rlcUeCfgState == UE_RECFG_COMPLETE))
                {
-                  ueCb = &duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[ueIdx];    
-                  ueCb->macUeCfg.macUeCfgState = UE_RECFG_COMPLETE;
-                  break;
-               }
-            } 
-
-            if(ueCb)
-            {
-               GET_UE_ID(ueCb->crnti, ueId);
-               if((ret = duUpdateDuUeCbCfg(ueId, cfgRsp->cellId)) == ROK)
-               {
-                  BuildAndSendUeCtxtRsp(cfgRsp->cellId, ueId);
+                  if((ret = duUpdateDuUeCbCfg(cfgRsp->ueId, cfgRsp->cellId)) == ROK)
+                  {  
+                     if((BuildAndSendUeCtxtRsp(cfgRsp->cellId, cfgRsp->ueId)) != ROK)
+                     {
+                        DU_LOG("\nERROR  ->  DU APP : Failure in BuildAndSendUeCtxtRsp()");
+                        DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, cfgRsp, sizeof(MacUeCfgRsp));
+                        return RFAILED;
+                     }
+                  }
+                  else
+                  {
+                     DU_LOG("\nERROR  ->  DU APP : Failure in updating DU UE CB");
+                     DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, cfgRsp, sizeof(MacUeCfgRsp));
+                     return RFAILED;
+                  }
                }
             }
          }
       }
       else
       {
-         DU_LOG("\nERROR  -->  DU APP : MAC UE CFG Response for EVENT[%d]: FAILURE [DU UE F1AP ID : %d]", pst->event, cfgRsp->duUeF1apId);
+         DU_LOG("\nERROR  -->  DU APP : MAC UE CFG Response for EVENT[%d]: FAILURE [DU UE F1AP ID : %d]", pst->event, cfgRsp->ueId);
          if(pst->event == EVENT_MAC_UE_RECONFIG_RSP)
          {
             //TODO: Send the failure case in Ue Context Setup Response
@@ -2434,13 +2568,13 @@ uint8_t DuProcMacUeCfgRsp(Pst *pst, MacUeCfgRsp *cfgRsp)
  * 
  *****************************************************************/
 
-uint8_t duBuildAndSendUeCreateReqToRlc(uint16_t cellId, uint8_t ueId, RlcUeCfg *duRlcUeCfg)
+uint8_t duBuildAndSendUeCreateReqToRlc(uint16_t cellId, uint8_t gnbDuUeF1apId, DuUeCfg *ueCfgDb, RlcUeCfg *duRlcUeCfg)
 {
    uint8_t  ret = ROK;
    RlcUeCfg *rlcUeCfg = NULLP;
    Pst       pst;
   
-   ret = fillRlcUeCfg(cellId, ueId, NULL, duRlcUeCfg);
+   ret = fillRlcUeCfg(cellId, gnbDuUeF1apId, ueCfgDb, duRlcUeCfg);
    if(ret == RFAILED)
    {
       DU_LOG("\nERROR  -->  DU APP : Failed to fill Rlc Ue Cfg at duBuildAndSendUeCreateReqToRlc()");
@@ -2501,18 +2635,56 @@ uint8_t DuProcRlcUeCfgRsp(Pst *pst, RlcUeCfgRsp *cfgRsp)
          if(pst->event == EVENT_RLC_UE_CREATE_RSP)
          {
             DU_LOG("\nINFO   -->  DU_APP: RLC UE Create Response : SUCCESS [UE IDX:%d]", cfgRsp->ueId);
-            duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[cfgRsp->ueId -1].\
-               rlcUeCfg.rlcUeCfgState = UE_CREATE_COMPLETE;
+            duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[cfgRsp->ueId -1].rlcUeCfg.rlcUeCfgState = UE_CREATE_COMPLETE;
+
+            if((duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[cfgRsp->ueId -1].ueState == UE_HANDIN_IN_PROGRESS) &&
+                  (duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[cfgRsp->ueId -1].macUeCfg.macUeCfgState == UE_CREATE_COMPLETE) &&
+                  (duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[cfgRsp->ueId -1].rlcUeCfg.rlcUeCfgState == UE_CREATE_COMPLETE))
+            {
+               if((ret = duUpdateDuUeCbCfg(cfgRsp->ueId, cfgRsp->cellId)) == ROK)
+               {
+                  /* If UE is in handover, RACH resource needs to be requested
+                   * from MAC for CFRA */
+                  if((duBuildAndSendRachRsrcReqToMac(cfgRsp->cellId, cfgRsp->ueId)) != ROK)
+                  {
+                     DU_LOG("\nERROR  --> DU APP : Failed to send RACH Resource Request to MAC");
+                     DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, cfgRsp, sizeof(MacUeCfgRsp));
+                     DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, cfgRsp, sizeof(RlcUeCfgRsp));
+                     return RFAILED;
+                  }
+               }
+               else
+               {
+                  DU_LOG("\nERROR  -->  DU APP : Failure in updating DU UE CB");
+                  DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, cfgRsp, sizeof(RlcUeCfgRsp));
+                  return RFAILED;
+               }
+            }
          }
          else if(pst->event == EVENT_RLC_UE_RECONFIG_RSP)
          {
             DU_LOG("\nINFO   -->  DU_APP: RLC UE Reconfig Response : SUCCESS [UE IDX:%d]", cfgRsp->ueId);
-            duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[cfgRsp->ueId -1].\
-               rlcUeCfg.rlcUeCfgState = UE_RECFG_COMPLETE;
-            if((ret = duUpdateDuUeCbCfg(cfgRsp->ueId, cfgRsp->cellId)) == ROK)
+
+            duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[cfgRsp->ueId -1].rlcUeCfg.rlcUeCfgState = UE_RECFG_COMPLETE;
+            if((duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[cfgRsp->ueId -1].macUeCfg.macUeCfgState == UE_RECFG_COMPLETE) &&
+                  (duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[cfgRsp->ueId -1].rlcUeCfg.rlcUeCfgState == UE_RECFG_COMPLETE))
             {
-               BuildAndSendUeCtxtRsp(cfgRsp->cellId, cfgRsp->ueId);
-            }   
+               if((ret = duUpdateDuUeCbCfg(cfgRsp->ueId, cfgRsp->cellId)) == ROK)
+               {
+                  if((BuildAndSendUeCtxtRsp(cfgRsp->cellId, cfgRsp->ueId)) != ROK)
+                  {
+                     DU_LOG("\nERROR  -->  DU APP : Failure in BuildAndSendUeCtxtRsp");
+                     DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, cfgRsp, sizeof(RlcUeCfgRsp));
+                     return RFAILED;
+                  }
+               }
+               else
+               {
+                  DU_LOG("\nERROR  -->  DU APP : Failure in updating DU UE CB");
+                  DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, cfgRsp, sizeof(RlcUeCfgRsp));
+                  return RFAILED;
+               }
+            }
          }
       }
       else
@@ -2553,17 +2725,16 @@ uint8_t DuProcRlcUeCfgRsp(Pst *pst, RlcUeCfgRsp *cfgRsp)
  *
  * ****************************************************************/
 
-uint8_t duBuildAndSendUeReCfgReqToRlc(uint8_t cellId, uint8_t crnti, DuUeCfg *ueCfgDb)
+uint8_t duBuildAndSendUeReCfgReqToRlc(uint8_t cellId, uint8_t gnbDuUeF1apId, uint8_t crnti, DuUeCfg *ueCfgDb)
 {
-   uint8_t ret = ROK, ueId = 0;
+   uint8_t ret = ROK;
    RlcUeCfg *rlcUeCfg = NULLP;
 
-   GET_UE_ID(crnti, ueId);
    DU_ALLOC_SHRABL_BUF(rlcUeCfg, sizeof(RlcUeCfg));
    if(rlcUeCfg)
    {
       memset(rlcUeCfg, 0, sizeof(RlcUeCfg));
-      ret = fillRlcUeCfg(cellId, ueId, ueCfgDb, rlcUeCfg);
+      ret = fillRlcUeCfg(cellId, gnbDuUeF1apId, ueCfgDb, rlcUeCfg);
       if(ret == RFAILED)
          DU_LOG("\nERROR  -->  DU APP : Failed at duBuildAndSendUeReCfgReqToRlc()");
       else
@@ -2663,16 +2834,20 @@ uint8_t duBuildAndSendUeContextSetupReq(uint16_t cellId, DuUeCb *ueCb)
       /* Filling MAC UE Config */
       memset(&ueCb->macUeCfg, 0, sizeof(MacUeCfg));
 
-      /* Since UE attach has not yet happened, ueId and crnti is unknow. Hence
-       * passing 0 */
+      /* Since UE attach has not yet happened, crnti is unknow. Hence passing 0 */
       ret = duBuildAndSendUeCreateReqToMac(cellId, ueCb->gnbDuUeF1apId, 0, duUeCfg, &ueCb->macUeCfg);
       if(ret == RFAILED)
          DU_LOG("\nERROR  -->  DU APP : Failed to send UE create request to MAC");
+
+      ret = duBuildAndSendUeCreateReqToRlc(cellId, ueCb->gnbDuUeF1apId, duUeCfg, &ueCb->rlcUeCfg);
+      if(ret == RFAILED)
+         DU_LOG("\nERROR  --> DU APP : Failed to send UE create request to RLC");
+
    }
    else
    {
       /* Filling RLC UE Reconfig */ 
-      ret = duBuildAndSendUeReCfgReqToRlc(cellId, crnti, duUeCfg);
+      ret = duBuildAndSendUeReCfgReqToRlc(cellId, ueCb->gnbDuUeF1apId, crnti, duUeCfg);
       if(ret == RFAILED)
          DU_LOG("\nERROR  -->  DU APP : Failed to build ctxt setup req for RLC at duBuildAndSendUeContextSetupReq()");
 
@@ -2833,7 +3008,7 @@ uint8_t duBuildAndSendUeContextModReq(uint16_t cellId, uint8_t gnbDuUeF1apId, ui
 
    DU_LOG("\nDEBUG   -->  DU_APP: Processing Ue Context Mod Request for cellId [%d]", cellId);
    /* Filling RLC Ue Reconfig */ 
-   ret = duBuildAndSendUeReCfgReqToRlc(cellId, crnti, duUeCfg);
+   ret = duBuildAndSendUeReCfgReqToRlc(cellId, gnbDuUeF1apId, crnti, duUeCfg);
    if(ret == RFAILED)
       DU_LOG("\nERROR  -->  DU APP : Failed to build ctxt setup req for RLC at duBuildAndSendUeContextModReq()");
    
@@ -2916,25 +3091,50 @@ uint8_t duProcUeContextModReq(DuUeCb *ueCb)
 
 /*******************************************************************
 *
-* @brief Function to delete Pdsch ServCellCfg
+* @brief Build and send dedicated RACH resource release request to MAC
 *
 * @details
 *
-*    Function : deletePdschServCellCfg
+*    Function : duBuildAndSendRachRsrcRelToMac
 *
-*    Functionality: Function to delete Pdsch ServCellCfg
+*    Functionality: Function to Build and send dedicated RACH resource 
+*    release request to MAC
 *
-* @params[in] PdschServCellCfg *pdschServCellCfg
-* @return void
+* @params[in] Cell ID
+*             UE CB
+* @return ROK - Success
+*         RFAILED - Failure
 *
 * ****************************************************************/
-
-void deletePdschServCellCfg(PdschServCellCfg *pdschServCellCfg)
+uint8_t duBuildAndSendRachRsrcRelToMac(uint16_t cellId, DuUeCb *ueCb)
 {
-   DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL,pdschServCellCfg->maxMimoLayers, sizeof(uint8_t));
-   DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL,pdschServCellCfg->maxCodeBlkGrpPerTb, sizeof(MaxCodeBlkGrpPerTB));
-   DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL,pdschServCellCfg->codeBlkGrpFlushInd, sizeof(bool));
-   DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL,pdschServCellCfg->xOverhead, sizeof(PdschXOverhead));
+   Pst pst;
+   MacRachRsrcRel *rachRsrcRel = NULLP;
+
+   DU_ALLOC_SHRABL_BUF(rachRsrcRel, sizeof(MacRachRsrcRel));
+   if(!rachRsrcRel)
+   {
+      DU_LOG("\nERROR  -->  DU APP : Failed to allocate memory for RACH Resource Release in \
+            duBuildAndSendRachRsrcRelToMac()");
+      return RFAILED;
+   }
+
+   rachRsrcRel->cellId = cellId;
+   rachRsrcRel->ueId = ueCb->gnbDuUeF1apId;
+   rachRsrcRel->crnti = ueCb->crnti;
+
+   /* Fill Pst */
+   FILL_PST_DUAPP_TO_MAC(pst, EVENT_MAC_RACH_RESOURCE_REL);
+
+   if(((*packMacRachRsrcRelOpts[pst.selector])(&pst, rachRsrcRel)) != ROK)
+   {
+      DU_LOG("\nERROR  -->  DU_APP : Failure in sending RACH Resource Release to MAC at \
+            duBuildAndSendRachRsrcRelToMac()");
+      DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, rachRsrcRel, sizeof(MacRachRsrcRel));
+      return RFAILED;
+   }
+
+   return ROK;
 }
 
 /*******************************************************************
@@ -3055,7 +3255,7 @@ uint8_t DuProcMacUeDeleteRsp(Pst *pst, MacUeDeleteRsp *deleteRsp)
    
    if(deleteRsp)
    {
-      if(deleteRsp->result == SUCCESS)
+      if(deleteRsp->result == DEL_SUCCESSFUL)
       {
          DU_LOG("\nINFO   -->  DU APP : MAC UE Delete Response : SUCCESS [UE IDX : %d]", deleteRsp->ueId);
          GET_CELL_IDX(deleteRsp->cellId, cellIdx);