fixes for contention resolution timer etc

openair2/LAYER2/NR_MAC_UE/nr_ra_procedures.c

@@ -470,12 +470,12 @@ void nr_Msg3_transmitted(module_id_t mod_id, uint8_t CC_id, frame_t frameP, slot
   int subframes_per_slot = nr_slots_per_frame[mu]/10;
 
   // start contention resolution timer (cnt in slots)
-  int RA_contention_resolution_timer_subframes = (nr_rach_ConfigCommon->ra_ContentionResolutionTimer + 1) * 8;
+  int RA_contention_resolution_timer_subframes = (nr_rach_ConfigCommon->ra_ContentionResolutionTimer + 1)<<3;
 
   ra->RA_contention_resolution_target_frame = frameP + (RA_contention_resolution_timer_subframes/10);
   ra->RA_contention_resolution_target_slot = (slotP + (RA_contention_resolution_timer_subframes * subframes_per_slot)) % nr_slots_per_frame[mu];
 
-  LOG_D(MAC,"In %s: [UE %d] CB-RA: starting contention resolution timer set in frame.slot %d.%d and expiring in %d.%d\n",
+  LOG_I(MAC,"In %s: [UE %d] CB-RA: contention resolution timer set in frame.slot %d.%d and expiring in %d.%d\n",
        __FUNCTION__, mod_id, frameP, slotP, ra->RA_contention_resolution_target_frame, ra->RA_contention_resolution_target_slot);
 
   ra->RA_contention_resolution_timer_active = 1;
@@ -746,7 +746,7 @@ void nr_ue_contention_resolution(module_id_t module_id, int cc_id, frame_t frame
 
   if (ra->RA_contention_resolution_timer_active == 1) {
     if (frame >= ra->RA_contention_resolution_target_frame &&
-      slot >= ra->RA_contention_resolution_target_frame) {
+      slot >= ra->RA_contention_resolution_target_slot) {
       ra->t_crnti = 0;
       ra->RA_active = 0;
       ra->RA_contention_resolution_timer_active = 0;

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_RA.c

@@ -793,6 +793,9 @@ void nr_generate_Msg3_retransmission(module_id_t module_idP, int CC_id, frame_t
         ra->CellGroup->spCellConfig->spCellConfigDedicated->downlinkBWP_ToAddModList->list.array[ra->bwp_id-1])
       bwp = ra->CellGroup->spCellConfig->spCellConfigDedicated->downlinkBWP_ToAddModList->list.array[ra->bwp_id-1];
 
+    if (*ss->controlResourceSetId == 0)
+      coreset = nr_mac->sched_ctrlCommon->coreset; // this is coreset 0
+    else
       coreset = get_coreset(scc, bwp, ss, NR_SearchSpace__searchSpaceType_PR_common);
     AssertFatal(coreset!=NULL,"Coreset cannot be null for RA-Msg3 retransmission\n");