improve code of dci decoding and add tracing for all dci fields

common/utils/LOG/log.c

@@ -497,6 +497,7 @@ int logInit (void)
   register_log_component("GNB_APP","log",GNB_APP);
   register_log_component("NR_RRC","log",NR_RRC);
   register_log_component("NR_MAC","log",NR_MAC);
+  register_log_component("NR_DCI", "log", NR_DCI);
   register_log_component("NR_PHY","log",NR_PHY);
   register_log_component("NGAP","",NGAP);
   register_log_component("ITTI","log",ITTI);

common/utils/LOG/log.h

@@ -215,6 +215,7 @@ typedef enum {
   GNB_APP,
   NR_RRC,
   NR_MAC,
+  NR_DCI,
   NR_PHY,
   LOADER,
   ASN1,
@@ -223,8 +224,7 @@ typedef enum {
   ITTI,
   UTIL,
   MAX_LOG_PREDEF_COMPONENTS,
-}
-comp_name_t;
+} comp_name_t;
 
 #define MAX_LOG_DYNALLOC_COMPONENTS 20
 #define MAX_LOG_COMPONENTS (MAX_LOG_PREDEF_COMPONENTS + MAX_LOG_DYNALLOC_COMPONENTS)

common/utils/T/T_messages.txt

@@ -361,6 +361,27 @@ ID = LEGACY_NR_MAC_TRACE
     GROUP = ALL:LEGACY_NR_MAC:LEGACY_GROUP_TRACE:LEGACY
     FORMAT = string,log
 
+ID = LEGACY_NR_DCI_INFO
+    DESC = NR_MAC legacy logs - info level
+    GROUP = ALL:LEGACY_NR_MAC:LEGACY_GROUP_INFO:LEGACY
+    FORMAT = string,log
+ID = LEGACY_NR_DCI_ERROR
+    DESC = NR_MAC legacy logs - error level
+    GROUP = ALL:LEGACY_NR_MAC:LEGACY_GROUP_ERROR:LEGACY
+    FORMAT = string,log
+ID = LEGACY_NR_DCI_WARNING
+    DESC = NR_MAC legacy logs - warning level
+    GROUP = ALL:LEGACY_NR_MAC:LEGACY_GROUP_WARNING:LEGACY
+    FORMAT = string,log
+ID = LEGACY_NR_DCI_DEBUG
+    DESC = NR_MAC legacy logs - debug level
+    GROUP = ALL:LEGACY_NR_MAC:LEGACY_GROUP_DEBUG:LEGACY
+    FORMAT = string,log
+ID = LEGACY_NR_DCI_TRACE
+    DESC = NR_MAC legacy logs - trace level
+    GROUP = ALL:LEGACY_NR_MAC:LEGACY_GROUP_TRACE:LEGACY
+    FORMAT = string,log
+
 ID = LEGACY_PHY_INFO
     DESC = PHY legacy logs - info level
     GROUP = ALL:LEGACY_PHY:LEGACY_GROUP_INFO:LEGACY

openair1/PHY/NR_UE_TRANSPORT/dci_nr.c

@@ -716,16 +716,14 @@ static uint16_t nr_dci_false_detection(uint64_t *dci,
   return x;
 }
 
-uint8_t nr_dci_decoding_procedure(PHY_VARS_NR_UE *ue,
+void nr_dci_decoding_procedure(PHY_VARS_NR_UE *ue,
                                const UE_nr_rxtx_proc_t *proc,
                                c16_t *pdcch_e_rx,
                                fapi_nr_dci_indication_t *dci_ind,
                                fapi_nr_dl_config_dci_dl_pdu_rel15_t *rel15)
 {
-  //int gNB_id = 0;
-  int16_t tmp_e[16*108];
-  rnti_t n_rnti;
   int e_rx_cand_idx = 0;
+  *dci_ind = (fapi_nr_dci_indication_t){.SFN = proc->frame_rx, .slot = proc->nr_slot_rx};
 
   for (int j=0;j<rel15->number_of_candidates;j++) {
     int CCEind = rel15->CCE[j];
@@ -736,15 +734,13 @@ uint8_t nr_dci_decoding_procedure(PHY_VARS_NR_UE *ue,
     for (int k = 0; k < rel15->num_dci_options; k++) {
       // skip this candidate if we've already found one with the
       // same rnti and format at a different aggregation level
-      int dci_found=0;
-      for (int ind=0;ind < dci_ind->number_of_dcis ; ind++) {
-        if (rel15->rnti== dci_ind->dci_list[ind].rnti &&
-            rel15->dci_format_options[k]==dci_ind->dci_list[ind].dci_format) {
-           dci_found=1;
+      int ind;
+      for (ind = 0; ind < dci_ind->number_of_dcis; ind++) {
+        if (rel15->rnti == dci_ind->dci_list[ind].rnti && rel15->dci_format_options[k] == dci_ind->dci_list[ind].dci_format) {
           break;
         }
       }
-      if (dci_found == 1)
+      if (ind < dci_ind->number_of_dcis)
         continue;
       int dci_length = rel15->dci_length_options[k];
       uint64_t dci_estimation[2]= {0};
@@ -752,46 +748,47 @@ uint8_t nr_dci_decoding_procedure(PHY_VARS_NR_UE *ue,
       LOG_D(PHY, "(%i.%i) Trying DCI candidate %d of %d number of candidates, CCE %d (%d), L %d, length %d, format %s\n",
             proc->frame_rx, proc->nr_slot_rx, j, rel15->number_of_candidates, CCEind, e_rx_cand_idx, L, dci_length, nr_dci_format_string[rel15->dci_format_options[k]]);
 
-
+      int16_t tmp_e[16 * 108];
       nr_pdcch_unscrambling(&pdcch_e_rx[e_rx_cand_idx], rel15->coreset.scrambling_rnti, L*108, rel15->coreset.pdcch_dmrs_scrambling_id, tmp_e);
-
+      // this polar version decodes 64 bits max, dci_estimation[1] will never be filled
       uint16_t crc = polar_decoder_int16(tmp_e,
                                          dci_estimation,
                                          1,
                                          NR_POLAR_DCI_MESSAGE_TYPE, dci_length, L);
 
-      n_rnti = rel15->rnti;
+      rnti_t n_rnti = rel15->rnti;
       LOG_D(PHY,
-            "(%i.%i) dci indication (rnti %x,dci format %s,n_CCE %d,payloadSize %d,payload %llx )\n",
+            "(%i.%i) dci indication (rnti %x,dci format %s,n_CCE %d,payloadSize %d,payload %lx, is rnti: %d )\n",
             proc->frame_rx,
             proc->nr_slot_rx,
             n_rnti,
             nr_dci_format_string[rel15->dci_format_options[k]],
             CCEind,
             dci_length,
-            *(unsigned long long *)dci_estimation);
+            dci_estimation[0],
+            crc == n_rnti);
       if (crc == n_rnti) {
-        LOG_D(PHY, "(%i.%i) Received dci indication (rnti %x,dci format %s,n_CCE %d,payloadSize %d,payload %llx)\n",
-              proc->frame_rx, proc->nr_slot_rx,n_rnti,nr_dci_format_string[rel15->dci_format_options[k]],CCEind,dci_length,*(unsigned long long*)dci_estimation);
         uint16_t mb = nr_dci_false_detection(dci_estimation,tmp_e,L*108,n_rnti, NR_POLAR_DCI_MESSAGE_TYPE, dci_length, L);
         ue->dci_thres = (ue->dci_thres + mb) / 2;
         if (mb > (ue->dci_thres+30)) {
           LOG_W(PHY,"DCI false positive. Dropping DCI index %d. Mismatched bits: %d/%d. Current DCI threshold: %d\n",j,mb,L*108,ue->dci_thres);
           continue;
         } else {
-          dci_ind->SFN = proc->frame_rx;
-          dci_ind->slot = proc->nr_slot_rx;
-          dci_ind->dci_list[dci_ind->number_of_dcis].rnti = n_rnti;
-          dci_ind->dci_list[dci_ind->number_of_dcis].n_CCE = CCEind;
-          dci_ind->dci_list[dci_ind->number_of_dcis].N_CCE = L;
-          dci_ind->dci_list[dci_ind->number_of_dcis].dci_format = rel15->dci_format_options[k];
-          dci_ind->dci_list[dci_ind->number_of_dcis].ss_type = rel15->ss_type_options[k];
-          dci_ind->dci_list[dci_ind->number_of_dcis].coreset_type = rel15->coreset.CoreSetType;
+          AssertFatal(dci_ind->number_of_dcis < sizeofArray(dci_ind->dci_list), "Fix allocation\n");
+          fapi_nr_dci_indication_pdu_t *dci = dci_ind->dci_list + dci_ind->number_of_dcis;
+          *dci = (fapi_nr_dci_indication_pdu_t){
+              .rnti = n_rnti,
+              .n_CCE = CCEind,
+              .N_CCE = L,
+              .dci_format = rel15->dci_format_options[k],
+              .ss_type = rel15->ss_type_options[k],
+              .coreset_type = rel15->coreset.CoreSetType,
+          };
           int n_rb, rb_offset;
           get_coreset_rballoc(rel15->coreset.frequency_domain_resource, &n_rb, &rb_offset);
-          dci_ind->dci_list[dci_ind->number_of_dcis].cset_start = rel15->BWPStart + rb_offset;
-          dci_ind->dci_list[dci_ind->number_of_dcis].payloadSize = dci_length;
-          memcpy((void*)dci_ind->dci_list[dci_ind->number_of_dcis].payloadBits,(void*)dci_estimation,8);
+          dci->cset_start = rel15->BWPStart + rb_offset;
+          dci->payloadSize = dci_length;
+          memcpy(dci->payloadBits, dci_estimation, (dci_length + 7) / 8);
           dci_ind->number_of_dcis++;
           break;    // If DCI is found, no need to check for remaining DCI lengths
         }
@@ -801,5 +798,4 @@ uint8_t nr_dci_decoding_procedure(PHY_VARS_NR_UE *ue,
     }
     e_rx_cand_idx += 9 * L * 6; // e_rx index for next candidate (L CCEs, 6 REGs per CCE and 9 REs per REG )
   }
-  return(dci_ind->number_of_dcis);
 }

openair1/PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h

@@ -361,7 +361,7 @@ void nr_sl_rf_card_config_freq(PHY_VARS_NR_UE *ue,
                                openair0_config_t *openair0_cfg,
                                int freq_offset);
 
-uint8_t nr_dci_decoding_procedure(PHY_VARS_NR_UE *ue,
+void nr_dci_decoding_procedure(PHY_VARS_NR_UE *ue,
                                const UE_nr_rxtx_proc_t *proc,
                                c16_t *pdcch_e_rx,
                                fapi_nr_dci_indication_t *dci_ind,

openair1/SCHED_NR_UE/phy_procedures_nr_ue.c

@@ -433,9 +433,6 @@ int nr_ue_pdcch_procedures(PHY_VARS_NR_UE *ue,
 {
   int frame_rx = proc->frame_rx;
   int nr_slot_rx = proc->nr_slot_rx;
-  unsigned int dci_cnt=0;
-  fapi_nr_dci_indication_t dci_ind = {0};
-  nr_downlink_indication_t dl_indication;
   NR_UE_PDCCH_CONFIG *phy_pdcch_config = &phy_data->phy_pdcch_config;
 
   fapi_nr_dl_config_dci_dl_pdu_rel15_t *rel15 = &phy_pdcch_config->pdcch_config[n_ss];
@@ -446,37 +443,24 @@ int nr_ue_pdcch_procedures(PHY_VARS_NR_UE *ue,
   int32_t pdcch_e_rx_size = NR_MAX_PDCCH_SIZE;
   c16_t pdcch_e_rx[pdcch_e_rx_size];
 
-  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_RX_PDCCH, VCD_FUNCTION_IN);
   nr_rx_pdcch(ue, proc, pdcch_est_size, pdcch_dl_ch_estimates, pdcch_e_rx, rel15, rxdataF);
-  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_RX_PDCCH, VCD_FUNCTION_OUT);
-
 
-  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_DCI_DECODING, VCD_FUNCTION_IN);
-
-#ifdef NR_PDCCH_SCHED_DEBUG
-  printf("<-NR_PDCCH_PHY_PROCEDURES_LTE_UE (nr_ue_pdcch_procedures)-> Entering function nr_dci_decoding_procedure for search space %d)\n",
-	 n_ss);
-#endif
-
-  dci_cnt = nr_dci_decoding_procedure(ue, proc, pdcch_e_rx, &dci_ind, rel15);
-
-#ifdef NR_PDCCH_SCHED_DEBUG
-  LOG_I(PHY,"<-NR_PDCCH_PHY_PROCEDURES_LTE_UE (nr_ue_pdcch_procedures)-> Ending function nr_dci_decoding_procedure() -> dci_cnt=%u\n",dci_cnt);
-#endif
+  fapi_nr_dci_indication_t dci_ind;
+  nr_dci_decoding_procedure(ue, proc, pdcch_e_rx, &dci_ind, rel15);
 
-  VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_DCI_DECODING, VCD_FUNCTION_OUT);
-
-  for (int i=0; i<dci_cnt; i++) {
-    LOG_D(PHY,"[UE  %d] AbsSubFrame %d.%d: DCI %i of %d total DCIs found --> rnti %x : format %d\n",
-          ue->Mod_id,frame_rx%1024,nr_slot_rx,
+  for (int i = 0; i < dci_ind.number_of_dcis; i++) {
+    LOG_D(PHY,
+          "[UE  %d] AbsSubFrame %d.%d: DCI %i of %d total DCIs found --> rnti %x : format %d\n",
+          ue->Mod_id,
+          frame_rx % 1024,
+          nr_slot_rx,
           i + 1,
-          dci_cnt,
+          dci_ind.number_of_dcis,
           dci_ind.dci_list[i].rnti,
           dci_ind.dci_list[i].dci_format);
   }
 
-  dci_ind.number_of_dcis = dci_cnt;
-
+  nr_downlink_indication_t dl_indication;
   // fill dl_indication message
   nr_fill_dl_indication(&dl_indication, &dci_ind, NULL, proc, ue, phy_data);
   //  send to mac
@@ -485,7 +469,7 @@ int nr_ue_pdcch_procedures(PHY_VARS_NR_UE *ue,
   stop_meas(&ue->dlsch_rx_pdcch_stats);
 
   VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_PDCCH_PROCEDURES, VCD_FUNCTION_OUT);
-  return(dci_cnt);
+  return (dci_ind.number_of_dcis);
 }
 
 static int nr_ue_pdsch_procedures(PHY_VARS_NR_UE *ue,

openair2/LAYER2/NR_MAC_UE/mac_proto.h

@@ -495,7 +495,7 @@ int nr_ue_pusch_scheduler(const NR_UE_MAC_INST_t *mac,
                           int *slot_tx,
                           const long k2);
 
-int get_rnti_type(NR_UE_MAC_INST_t *mac, uint16_t rnti);
+int get_rnti_type(const NR_UE_MAC_INST_t *mac, const uint16_t rnti);
 
 // Configuration of Msg3 PDU according to clauses:
 // - 8.3 of 3GPP TS 38.213 version 16.3.0 Release 16