fill_dci_pdu_rel15(): handle one DCI at a time

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_RA.c

@@ -943,7 +943,15 @@ void nr_generate_Msg2(module_id_t module_idP,
       pdcch_pdu_rel15->StartSymbolIndex,
       pdcch_pdu_rel15->DurationSymbols);
 
-    fill_dci_pdu_rel15(scc,ra->secondaryCellGroup,pdcch_pdu_rel15, &dci_pdu_rel15[0], dci_formats, rnti_types,dci10_bw,ra->bwp_id);
+    // nr_configure_pdcch() increased numDlDci, so we use numDlDci - 1
+    fill_dci_pdu_rel15(scc,
+                       ra->secondaryCellGroup,
+                       &pdcch_pdu_rel15->dci_pdu[pdcch_pdu_rel15->numDlDci - 1],
+                       &dci_pdu_rel15[0],
+                       dci_formats[0],
+                       rnti_types[0],
+                       dci10_bw,
+                       ra->bwp_id);
 
     dl_req->nPDUs+=2;
 

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_bch.c

@@ -418,13 +418,17 @@ void nr_fill_nfapi_dl_sib1_pdu(int Mod_idP,
                      gNB_mac->sched_ctrlCommon->aggregation_level,
                      gNB_mac->sched_ctrlCommon->cce_index);
 
-  int dci_formats[2];
-  int rnti_types[2];
-
-  dci_formats[0]  = NR_DL_DCI_FORMAT_1_0;
-  rnti_types[0]   = NR_RNTI_SI;
-
-  fill_dci_pdu_rel15(scc,secondaryCellGroup,pdcch_pdu_rel15,dci_pdu_rel15,dci_formats,rnti_types,pdsch_pdu_rel15->BWPSize,gNB_mac->sched_ctrlCommon->active_bwp->bwp_Id);
+  int dci_format = NR_DL_DCI_FORMAT_1_0;
+  int rnti_type = NR_RNTI_SI;
+
+  fill_dci_pdu_rel15(scc,
+                     secondaryCellGroup,
+                     &pdcch_pdu_rel15->dci_pdu[pdcch_pdu_rel15->numDlDci - 1],
+                     dci_pdu_rel15,
+                     dci_format,
+                     rnti_type,
+                     pdsch_pdu_rel15->BWPSize,
+                     gNB_mac->sched_ctrlCommon->active_bwp->bwp_Id);
 
   dl_req->nPDUs += 2;
 
@@ -504,4 +508,4 @@ void schedule_nr_sib1(module_id_t module_idP, frame_t frameP, sub_frame_t slotP)
     gNB_mac->TX_req[CC_id].SFN = frameP;
     gNB_mac->TX_req[CC_id].Slot = slotP;
   }
-}
\ No newline at end of file
+}

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c

@@ -769,15 +769,16 @@ void nr_schedule_ue_spec(module_id_t module_id,
                        sched_ctrl->cce_index);
 
     const long f = sched_ctrl->search_space->searchSpaceType->choice.ue_Specific->dci_Formats;
-    /*const*/ int dci_format = f ? NR_DL_DCI_FORMAT_1_1 : NR_DL_DCI_FORMAT_1_0;
-    int rnti_types[2] = { NR_RNTI_C, 0 };
+    const int dci_format = f ? NR_DL_DCI_FORMAT_1_1 : NR_DL_DCI_FORMAT_1_0;
+    const int rnti_type = NR_RNTI_C;
 
+    // nr_configure_pdcch() increased numDlDci, so we use numDlDci - 1
     fill_dci_pdu_rel15(scc,
                        UE_info->secondaryCellGroup[UE_id],
-                       pdcch_pdu,
+                       &pdcch_pdu->dci_pdu[pdcch_pdu->numDlDci - 1],
                        dci_pdu,
-                       &dci_format,
-                       rnti_types,
+                       dci_format,
+                       rnti_type,
                        pdsch_pdu->BWPSize,
                        bwp->bwp_Id);
 

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c

@@ -953,31 +953,35 @@ void prepare_dci(const NR_CellGroupConfig_t *secondaryCellGroup,
 }
 
 
-void fill_dci_pdu_rel15(NR_ServingCellConfigCommon_t *scc,
-                        NR_CellGroupConfig_t *secondaryCellGroup,
-                        nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu_rel15,
+void fill_dci_pdu_rel15(const NR_ServingCellConfigCommon_t *scc,
+                        const NR_CellGroupConfig_t *secondaryCellGroup,
+                        nfapi_nr_dl_dci_pdu_t *pdcch_dci_pdu,
                         dci_pdu_rel15_t *dci_pdu_rel15,
-                        int *dci_formats,
-                        int *rnti_types,
+                        int dci_format,
+                        int rnti_type,
                         int N_RB,
                         int bwp_id) {
 
   uint8_t fsize=0, pos=0;
 
-  for (int d=0;d<pdcch_pdu_rel15->numDlDci;d++) {
+    uint64_t *dci_pdu = (uint64_t *)pdcch_dci_pdu->Payload;
+    int dci_size = nr_dci_size(scc,
+                               secondaryCellGroup,
+                               dci_pdu_rel15,
+                               dci_format,
+                               rnti_type,
+                               N_RB,
+                               bwp_id);
+    pdcch_dci_pdu->PayloadSizeBits = dci_size;
+    AssertFatal(dci_size <= 64, "DCI sizes above 64 bits not yet supported");
 
-    uint64_t *dci_pdu = (uint64_t *)pdcch_pdu_rel15->dci_pdu[d].Payload;
-    int dci_size = nr_dci_size(scc,secondaryCellGroup,&dci_pdu_rel15[d],dci_formats[d],rnti_types[d],N_RB,bwp_id);
-    pdcch_pdu_rel15->dci_pdu[d].PayloadSizeBits = dci_size;
-    AssertFatal(pdcch_pdu_rel15->dci_pdu[d].PayloadSizeBits<=64, "DCI sizes above 64 bits not yet supported");
+    if (dci_format == NR_DL_DCI_FORMAT_1_1 || dci_format == NR_UL_DCI_FORMAT_0_1)
+      prepare_dci(secondaryCellGroup, dci_pdu_rel15, dci_format, bwp_id);
 
-    if(dci_formats[d]==NR_DL_DCI_FORMAT_1_1 || dci_formats[d]==NR_UL_DCI_FORMAT_0_1)
-      prepare_dci(secondaryCellGroup,&dci_pdu_rel15[d],dci_formats[d],bwp_id);
-    
     /// Payload generation
-    switch(dci_formats[d]) {
+    switch(dci_format) {
     case NR_DL_DCI_FORMAT_1_0:
-      switch(rnti_types[d]) {
+      switch(rnti_type) {
       case NR_RNTI_RA:
 	// Freq domain assignment
 	fsize = (int)ceil( log2( (N_RB*(N_RB+1))>>1 ) );
@@ -1216,7 +1220,7 @@ void fill_dci_pdu_rel15(NR_ServingCellConfigCommon_t *scc,
       break;
       
     case NR_UL_DCI_FORMAT_0_0:
-      switch(rnti_types[d])
+      switch(rnti_type)
 	{
 	case NR_RNTI_C:
 	  // indicating a DL DCI format 1bit
@@ -1302,7 +1306,7 @@ void fill_dci_pdu_rel15(NR_ServingCellConfigCommon_t *scc,
       break;
 
     case NR_UL_DCI_FORMAT_0_1:
-      switch(rnti_types[d])
+      switch(rnti_type)
 	{
 	case NR_RNTI_C:
           // Indicating a DL DCI format 1bit
@@ -1512,8 +1516,7 @@ void fill_dci_pdu_rel15(NR_ServingCellConfigCommon_t *scc,
       pos+=1;
       *dci_pdu |= ((uint64_t)dci_pdu_rel15->dmrs_sequence_initialization.val&0x1)<<(dci_size-pos);
     }
-    LOG_D(MAC, "DCI index %d has %d bits and the payload is %lx\n", d, dci_size, *dci_pdu);
-  }
+    LOG_D(MAC, "DCI has %d bits and the payload is %lx\n", dci_size, *dci_pdu);
 }
 
   

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c

@@ -821,10 +821,10 @@ void nr_schedule_ulsch(module_id_t module_id,
                  sched_ctrl->active_bwp->bwp_Id);
     fill_dci_pdu_rel15(scc,
                        secondaryCellGroup,
-                       pdcch_pdu_rel15,
+                       &pdcch_pdu_rel15->dci_pdu[pdcch_pdu_rel15->numDlDci - 1],
                        dci_pdu_rel15,
-                       &ps->dci_format,
-                       rnti_types,
+                       ps->dci_format,
+                       rnti_types[0],
                        pusch_pdu->bwp_size,
                        sched_ctrl->active_bwp->bwp_Id);
 

openair2/LAYER2/NR_MAC_gNB/mac_proto.h

@@ -251,12 +251,12 @@ void nr_configure_pdcch(gNB_MAC_INST *nr_mac,
                         uint8_t aggregation_level,
                         int CCEIndex);
 
-void fill_dci_pdu_rel15(NR_ServingCellConfigCommon_t *scc,
-                        NR_CellGroupConfig_t *secondaryCellGroup,
-                        nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu_rel15,
+void fill_dci_pdu_rel15(const NR_ServingCellConfigCommon_t *scc,
+                        const NR_CellGroupConfig_t *secondaryCellGroup,
+                        nfapi_nr_dl_dci_pdu_t *pdcch_dci_pdu,
                         dci_pdu_rel15_t *dci_pdu_rel15,
-                        int *dci_formats,
-                        int *rnti_types,
+                        int dci_formats,
+                        int rnti_types,
                         int N_RB,
                         int bwp_id);