diff --git a/openair2/LAYER2/NR_MAC_gNB/config.c b/openair2/LAYER2/NR_MAC_gNB/config.c
index cedd095794..1cb3fdb708 100644
--- a/openair2/LAYER2/NR_MAC_gNB/config.c
+++ b/openair2/LAYER2/NR_MAC_gNB/config.c
@@ -610,12 +610,25 @@ int rrc_mac_config_req_gNB(module_id_t Mod_idP,
       UE_info->CellGroup[UE_id] = CellGroup;
       LOG_I(NR_MAC,"Modified UE_id %d/%x with CellGroup\n",UE_id,rnti);
       process_CellGroup(CellGroup,&UE_info->UE_sched_ctrl[UE_id]);
+      const NR_ServingCellConfig_t *servingCellConfig = CellGroup ? CellGroup->spCellConfig->spCellConfigDedicated : NULL;
+      NR_UE_sched_ctrl_t *sched_ctrl = &UE_info->UE_sched_ctrl[UE_id];
+      const NR_PDSCH_ServingCellConfig_t *pdsch = servingCellConfig ? servingCellConfig->pdsch_ServingCellConfig->choice.setup : NULL;
+      if (sched_ctrl->available_dl_harq.len == 0) {
+        // add all available DL HARQ processes for this UE in SA
+        create_dl_harq_list(sched_ctrl, pdsch);
+      }
+      else {
+        const int nrofHARQ = pdsch && pdsch->nrofHARQ_ProcessesForPDSCH ?
+                             get_nrofHARQ_ProcessesForPDSCH(*pdsch->nrofHARQ_ProcessesForPDSCH) : 8;
+        AssertFatal(sched_ctrl->available_dl_harq.len==nrofHARQ,
+                    "Reconfiguration of available harq processes not yet supported\n");
+      }
       // update coreset/searchspace
       void *bwpd = NULL;
       target_ss = NR_SearchSpace__searchSpaceType_PR_common;
-      if ((UE_info->UE_sched_ctrl[UE_id].active_bwp)) {
+      if ((sched_ctrl->active_bwp)) {
         target_ss = NR_SearchSpace__searchSpaceType_PR_ue_Specific;
-        bwpd = (void*)UE_info->UE_sched_ctrl[UE_id].active_bwp->bwp_Dedicated;
+        bwpd = (void*)sched_ctrl->active_bwp->bwp_Dedicated;
       }
       else if (CellGroup->spCellConfig &&
                  CellGroup->spCellConfig->spCellConfigDedicated &&
@@ -623,9 +636,9 @@ int rrc_mac_config_req_gNB(module_id_t Mod_idP,
         target_ss = NR_SearchSpace__searchSpaceType_PR_ue_Specific;
         bwpd = (void*)CellGroup->spCellConfig->spCellConfigDedicated->initialDownlinkBWP;
       }
-      UE_info->UE_sched_ctrl[UE_id].search_space = get_searchspace(scc, bwpd, target_ss);
-      UE_info->UE_sched_ctrl[UE_id].coreset = get_coreset(Mod_idP, scc, bwpd, UE_info->UE_sched_ctrl[UE_id].search_space, target_ss);
-      UE_info->UE_sched_ctrl[UE_id].maxL = 2;
+      sched_ctrl->search_space = get_searchspace(scc, bwpd, target_ss);
+      sched_ctrl->coreset = get_coreset(Mod_idP, scc, bwpd, sched_ctrl->search_space, target_ss);
+      sched_ctrl->maxL = 2;
     }
   }
   VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_RRC_MAC_CONFIG, VCD_FUNCTION_OUT);
diff --git a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c
index 7387bfe698..1c0cb0353e 100644
--- a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c
+++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c
@@ -1971,8 +1971,8 @@ int add_new_nr_ue(module_id_t mod_idP, rnti_t rntiP, NR_CellGroupConfig_t *CellG
     if (bwpList) AssertFatal(bwpList->list.count == 1,
 			     "downlinkBWP_ToAddModList has %d BWP!\n",
 			     bwpList->list.count);
-    const int bwp_id = 1;
-    sched_ctrl->active_bwp = bwpList ? bwpList->list.array[bwp_id - 1] : NULL;
+    const int bwp_id = servingCellConfig ? *servingCellConfig->firstActiveDownlinkBWP_Id : 0;
+    sched_ctrl->active_bwp = bwpList && bwp_id > 0 ? bwpList->list.array[bwp_id - 1] : NULL;
     const int target_ss = sched_ctrl->active_bwp ? NR_SearchSpace__searchSpaceType_PR_ue_Specific : NR_SearchSpace__searchSpaceType_PR_common;
     sched_ctrl->search_space = get_searchspace(scc,
                                                sched_ctrl->active_bwp ? sched_ctrl->active_bwp->bwp_Dedicated : NULL,
@@ -1984,23 +1984,20 @@ int add_new_nr_ue(module_id_t mod_idP, rnti_t rntiP, NR_CellGroupConfig_t *CellG
     if (ubwpList) AssertFatal(ubwpList->list.count == 1,
 			      "uplinkBWP_ToAddModList has %d BWP!\n",
 			      ubwpList->list.count);
-    sched_ctrl->active_ubwp = ubwpList ? ubwpList->list.array[bwp_id - 1] : NULL;
+    const int ul_bwp_id = servingCellConfig ? *servingCellConfig->uplinkConfig->firstActiveUplinkBWP_Id : 0;
+    sched_ctrl->active_ubwp = ubwpList && ul_bwp_id > 0 ? ubwpList->list.array[ul_bwp_id - 1] : NULL;
 
     /* get Number of HARQ processes for this UE */
     if (servingCellConfig) AssertFatal(servingCellConfig->pdsch_ServingCellConfig->present == NR_SetupRelease_PDSCH_ServingCellConfig_PR_setup,
 				       "no pdsch-ServingCellConfig found for UE %d\n",
 				       UE_id);
     const NR_PDSCH_ServingCellConfig_t *pdsch = servingCellConfig ? servingCellConfig->pdsch_ServingCellConfig->choice.setup : NULL;
-    const int nrofHARQ = pdsch ? (pdsch->nrofHARQ_ProcessesForPDSCH ?
-				  get_nrofHARQ_ProcessesForPDSCH(*pdsch->nrofHARQ_ProcessesForPDSCH) : 8) : 8;
-    // add all available DL HARQ processes for this UE
-    create_nr_list(&sched_ctrl->available_dl_harq, nrofHARQ);
-    for (int harq = 0; harq < nrofHARQ; harq++)
-      add_tail_nr_list(&sched_ctrl->available_dl_harq, harq);
-    create_nr_list(&sched_ctrl->feedback_dl_harq, nrofHARQ);
-    create_nr_list(&sched_ctrl->retrans_dl_harq, nrofHARQ);
-
+    // add DL HARQ processes for this UE only in NSA
+    // (SA still doesn't have information on nrofHARQ_ProcessesForPDSCH at this stage)
+    if (!get_softmodem_params()->sa)
+      create_dl_harq_list(sched_ctrl,pdsch);
     // add all available UL HARQ processes for this UE
+    // nb of ul harq processes not configurable
     create_nr_list(&sched_ctrl->available_ul_harq, 16);
     for (int harq = 0; harq < 16; harq++)
       add_tail_nr_list(&sched_ctrl->available_ul_harq, harq);
@@ -2020,6 +2017,19 @@ int add_new_nr_ue(module_id_t mod_idP, rnti_t rntiP, NR_CellGroupConfig_t *CellG
   return -1;
 }
 
+
+void create_dl_harq_list(NR_UE_sched_ctrl_t *sched_ctrl,
+                         const NR_PDSCH_ServingCellConfig_t *pdsch) {
+  const int nrofHARQ = pdsch && pdsch->nrofHARQ_ProcessesForPDSCH ?
+                       get_nrofHARQ_ProcessesForPDSCH(*pdsch->nrofHARQ_ProcessesForPDSCH) : 8;
+  // add all available DL HARQ processes for this UE
+  create_nr_list(&sched_ctrl->available_dl_harq, nrofHARQ);
+  for (int harq = 0; harq < nrofHARQ; harq++)
+    add_tail_nr_list(&sched_ctrl->available_dl_harq, harq);
+  create_nr_list(&sched_ctrl->feedback_dl_harq, nrofHARQ);
+  create_nr_list(&sched_ctrl->retrans_dl_harq, nrofHARQ);
+}
+
 /* hack data to remove UE in the phy */
 int rnti_to_remove[10];
 volatile int rnti_to_remove_count;
diff --git a/openair2/LAYER2/NR_MAC_gNB/mac_proto.h b/openair2/LAYER2/NR_MAC_gNB/mac_proto.h
index 62d70f4f2c..91221276b0 100644
--- a/openair2/LAYER2/NR_MAC_gNB/mac_proto.h
+++ b/openair2/LAYER2/NR_MAC_gNB/mac_proto.h
@@ -306,6 +306,8 @@ int get_spf(nfapi_nr_config_request_scf_t *cfg);
 
 int to_absslot(nfapi_nr_config_request_scf_t *cfg,int frame,int slot);
 
+int get_nrofHARQ_ProcessesForPDSCH(e_NR_PDSCH_ServingCellConfig__nrofHARQ_ProcessesForPDSCH n);
+
 void nr_get_tbs_dl(nfapi_nr_dl_tti_pdsch_pdu *pdsch_pdu,
 		   int x_overhead,
                    uint8_t numdmrscdmgroupnodata,
@@ -409,6 +411,9 @@ void nr_rx_sdu(const module_id_t gnb_mod_idP,
                const uint8_t ul_cqi,
                const uint16_t rssi);
 
+void create_dl_harq_list(NR_UE_sched_ctrl_t *sched_ctrl,
+                         const NR_PDSCH_ServingCellConfig_t *pdsch);
+
 void handle_nr_ul_harq(const int CC_idP,
                        module_id_t mod_id,
                        frame_t frame,