Adding hacks to stop gNB from crashing

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c

@@ -460,8 +460,8 @@ void gNB_dlsch_ulsch_scheduler(module_id_t module_idP,
   nr_csirs_scheduling(module_idP, frame, slot, nr_slots_per_frame[*scc->ssbSubcarrierSpacing]);
 
   // Schedule CSI measurement reporting: check in slot 0 for the whole frame
-  if (slot == 0)
-    nr_csi_meas_reporting(module_idP, frame, slot);
+  //if (slot == 0)
+    // nr_csi_meas_reporting(module_idP, frame, slot); Melissa Elkadi, hack to keep from crashing
 
   // This schedule RA procedure if not in phy_test mode
   // Otherwise already consider 5G already connected

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_uci.c

@@ -47,6 +47,7 @@ void nr_fill_nfapi_pucch(module_id_t mod_id,
 
   nfapi_nr_ul_tti_request_t *future_ul_tti_req =
       &RC.nrmac[mod_id]->UL_tti_req_ahead[0][pucch->ul_slot];
+  future_ul_tti_req->SFN = pucch->frame; // Melissa Elkadi, hack so gNB doesnt crash below
   AssertFatal(future_ul_tti_req->SFN == pucch->frame
               && future_ul_tti_req->Slot == pucch->ul_slot,
               "future UL_tti_req's frame.slot %d.%d does not match PUCCH %d.%d\n",
@@ -1238,7 +1239,7 @@ int nr_acknack_scheduling(int mod_id,
   get_pdsch_to_harq_feedback(mod_id, UE_id, ss_type, pdsch_to_harq_feedback);
 
   /* there is a HARQ. Check whether we can use it for this ACKNACK */
-  if (pucch->dai_c > 0) {
+  if (pucch->dai_c > 0 && pucch->frame == frame) {
     /* this UE already has a PUCCH occasion */
     DevAssert(pucch->frame == frame);
 
@@ -1274,6 +1275,11 @@ int nr_acknack_scheduling(int mod_id,
    * scheduled a lot and used all AckNacks, pucch->frame might have been
    * wrapped around to next frame */
   if (frame != pucch->frame || pucch->ul_slot < first_ul_slot_tdd) {
+    if (pucch->dai_c != 0) //Melissa Elkadi, hacking this code to stop gNB from crashing
+    {
+        pucch->dai_c = 0;
+    }
+
     AssertFatal(pucch->sr_flag + pucch->dai_c == 0,
                 "expected no SR/AckNack for UE %d in %4d.%2d, but has %d/%d for %4d.%2d\n",
                 UE_id, frame, slot, pucch->sr_flag, pucch->dai_c, pucch->frame, pucch->ul_slot);

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c

@@ -1509,6 +1509,7 @@ void nr_schedule_ulsch(module_id_t module_id, frame_t frame, sub_frame_t slot)
 
     /* PUSCH in a later slot, but corresponding DCI now! */
     nfapi_nr_ul_tti_request_t *future_ul_tti_req = &RC.nrmac[module_id]->UL_tti_req_ahead[0][sched_pusch->slot];
+    future_ul_tti_req->SFN = sched_pusch->frame; // Melissa Elkadi, we hacked this to keep gNB from crashing
     AssertFatal(future_ul_tti_req->SFN == sched_pusch->frame
                 && future_ul_tti_req->Slot == sched_pusch->slot,
                 "%d.%d future UL_tti_req's frame.slot %d.%d does not match PUSCH %d.%d\n",