mcs table for pusch from rrc config

openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.c

@@ -1603,11 +1603,9 @@ uint16_t Table_51312[28][2] = {{2,120},{2,193},{2,308},{2,449},{2,602},{4,378},{
 uint16_t Table_51313[29][2] = {{2,30},{2,40},{2,50},{2,64},{2,78},{2,99},{2,120},{2,157},{2,193},{2,251},{2,308},{2,379},{2,449},{2,526},{2,602},{4,340},
 		{4,378},{4,434},{4,490},{4,553},{4,616},{6,438},{6,466},{6,517},{6,567},{6,616},{6,666}, {6,719}, {6,772}};
 
-//Table 6.1.4.1-1 of 38.214 TODO fix for tp-pi2BPSK
 uint16_t Table_61411[28][2] = {{2,120},{2,157},{2,193},{2,251},{2,308},{2,379},{2,449},{2,526},{2,602},{2,679},{4,340},{4,378},{4,434},{4,490},{4,553},{4,616},
 		{4,658},{6,466},{6,517},{6,567},{6,616},{6,666},{6,719},{6,772},{6,822},{6,873}, {6,910}, {6,948}};
 
-//Table 6.1.4.1-2 of 38.214 TODO fix for tp-pi2BPSK
 uint16_t Table_61412[28][2] = {{2,30},{2,40},{2,50},{2,64},{2,78},{2,99},{2,120},{2,157},{2,193},{2,251},{2,308},{2,379},{2,449},{2,526},{2,602},{2,679},
 		{4,378},{4,434},{4,490},{4,553},{4,616},{4,658},{4,699},{4,772},{6,567},{6,616},{6,666}, {6,772}};
 
@@ -2471,6 +2469,40 @@ int16_t fill_dmrs_mask(NR_PDSCH_Config_t *pdsch_Config,int dmrs_TypeA_Position,i
   return(-1);
 }
 
+uint8_t get_pusch_mcs_table(long *mcs_Table,
+                            int is_tp,
+                            int dci_format,
+                            int rnti_type,
+                            int target_ss,
+                            bool config_grant) {
+
+  // implementing 6.1.4.1 in 38.214
+  if (mcs_Table != NULL) {
+    if (config_grant || (rnti_type == NR_RNTI_CS)) {
+      if (*mcs_Table == NR_PUSCH_Config__mcs_Table_qam256)
+        return 1;
+      else
+        return (2+(is_tp<<1));
+    }
+    else {
+      if ((*mcs_Table == NR_PUSCH_Config__mcs_Table_qam256) &&
+          (dci_format == NR_UL_DCI_FORMAT_0_1) &&
+          ((rnti_type == NR_RNTI_C ) || (rnti_type == NR_RNTI_SP_CSI)))
+        return 1;
+      // TODO take into account UE configuration
+      if ((*mcs_Table == NR_PUSCH_Config__mcs_Table_qam64LowSE) &&
+          (target_ss == NR_SearchSpace__searchSpaceType_PR_ue_Specific) &&
+          ((rnti_type == NR_RNTI_C ) || (rnti_type == NR_RNTI_SP_CSI)))
+        return (2+(is_tp<<1));
+      if (rnti_type == NR_RNTI_MCS_C)
+        return (2+(is_tp<<1));
+      AssertFatal(1==0,"Invalid configuration to set MCS table");
+    }
+  }
+  else
+    return (0+(is_tp*3));
+}
+
 
 int binomial(int n, int k) {
   int c = 1, i;

openair2/LAYER2/NR_MAC_COMMON/nr_mac_common.h

@@ -60,7 +60,8 @@ typedef enum {
   NR_RNTI_INT,
   NR_RNTI_TPC_PUSCH,
   NR_RNTI_TPC_PUCCH,
-  NR_RNTI_TPC_SRS
+  NR_RNTI_TPC_SRS,
+  NR_RNTI_MCS_C,
 } nr_rnti_type_t;
 
 uint16_t config_bandwidth(int mu, int nb_rb, int nr_band);
@@ -100,6 +101,13 @@ int get_nr_prach_info_from_index(uint8_t index,
                                  uint8_t *N_t_slot,
                                  uint8_t *N_dur);
 
+uint8_t get_pusch_mcs_table(long *mcs_Table,
+                            int is_tp,
+                            int dci_format,
+                            int rnti_type,
+                            int target_ss,
+                            bool config_grant);
+
 uint8_t compute_nr_root_seq(NR_RACH_ConfigCommon_t *rach_config,
                             uint8_t nb_preambles,
                             uint8_t unpaired);

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_phytest.c

@@ -862,6 +862,36 @@ void schedule_fapi_ul_pdu(int Mod_idP,
     LOG_D(MAC, "Scheduling UE specific PUSCH\n");
     //UL_tti_req = &nr_mac->UL_tti_req[CC_id];
 
+    int dci_formats[2];
+    int rnti_types[2];
+
+    NR_SearchSpace_t *ss;
+    int target_ss = NR_SearchSpace__searchSpaceType_PR_ue_Specific;
+
+    AssertFatal(bwp->bwp_Dedicated->pdcch_Config->choice.setup->searchSpacesToAddModList!=NULL,"searchPsacesToAddModList is null\n");
+    AssertFatal(bwp->bwp_Dedicated->pdcch_Config->choice.setup->searchSpacesToAddModList->list.count>0,
+                "searchPsacesToAddModList is empty\n");
+
+    int found=0;
+
+    for (int i=0;i<bwp->bwp_Dedicated->pdcch_Config->choice.setup->searchSpacesToAddModList->list.count;i++) {
+      ss=bwp->bwp_Dedicated->pdcch_Config->choice.setup->searchSpacesToAddModList->list.array[i];
+      AssertFatal(ss->controlResourceSetId != NULL,"ss->controlResourceSetId is null\n");
+      AssertFatal(ss->searchSpaceType != NULL,"ss->searchSpaceType is null\n");
+      if (ss->searchSpaceType->present == target_ss) {
+        found=1;
+        break;
+      }
+    }
+    AssertFatal(found==1,"Couldn't find an adequate searchspace\n");
+
+    if (ss->searchSpaceType->choice.ue_Specific->dci_Formats)
+      dci_formats[0]  = NR_UL_DCI_FORMAT_0_1;
+    else
+      dci_formats[0]  = NR_UL_DCI_FORMAT_0_0;
+
+    rnti_types[0]   = NR_RNTI_C;
+
     //Resource Allocation in time domain
     int startSymbolAndLength=0;
     int StartSymbolIndex,NrOfSymbols,mapping_type;
@@ -881,12 +911,7 @@ void schedule_fapi_ul_pdu(int Mod_idP,
     pusch_pdu->bwp_start = NRRIV2PRBOFFSET(ubwp->bwp_Common->genericParameters.locationAndBandwidth,275);
     pusch_pdu->subcarrier_spacing = ubwp->bwp_Common->genericParameters.subcarrierSpacing;
     pusch_pdu->cyclic_prefix = 0;
-    //pusch information always include
-    //this informantion seems to be redundant. with hthe mcs_index and the modulation table, the mod_order and target_code_rate can be determined.
-    pusch_pdu->mcs_index = 9;
-    pusch_pdu->mcs_table = 0; //0: notqam256 [TS38.214, table 5.1.3.1-1] - corresponds to nr_target_code_rate_table1 in PHY
-    pusch_pdu->target_code_rate = nr_get_code_rate_ul(pusch_pdu->mcs_index,pusch_pdu->mcs_table) ;
-    pusch_pdu->qam_mod_order = nr_get_Qm_ul(pusch_pdu->mcs_index,pusch_pdu->mcs_table) ;
+
     if (pusch_Config->transformPrecoder == NULL) {
       if (scc->uplinkConfigCommon->initialUplinkBWP->rach_ConfigCommon->choice.setup->msg3_transformPrecoder == NULL)
         pusch_pdu->transform_precoding = 1;
@@ -900,6 +925,23 @@ void schedule_fapi_ul_pdu(int Mod_idP,
     else
       pusch_pdu->data_scrambling_id = *scc->physCellId;
 
+    pusch_pdu->mcs_index = 9;
+    if (pusch_pdu->transform_precoding)
+      pusch_pdu->mcs_table = get_pusch_mcs_table(pusch_Config->mcs_Table, 0,
+                                                 dci_formats[0], rnti_types[0], target_ss, false);
+    else
+      pusch_pdu->mcs_table = get_pusch_mcs_table(pusch_Config->mcs_TableTransformPrecoder, 1,
+                                                 dci_formats[0], rnti_types[0], target_ss, false);
+
+    pusch_pdu->target_code_rate = nr_get_code_rate_ul(pusch_pdu->mcs_index,pusch_pdu->mcs_table);
+    pusch_pdu->qam_mod_order = nr_get_Qm_ul(pusch_pdu->mcs_index,pusch_pdu->mcs_table);
+    if (pusch_Config->tp_pi2BPSK!=NULL) {
+      if(((pusch_pdu->mcs_table==3)&&(pusch_pdu->mcs_index<2)) ||
+         ((pusch_pdu->mcs_table==4)&&(pusch_pdu->mcs_index<6))) {
+        pusch_pdu->target_code_rate = pusch_pdu->target_code_rate>>1;
+        pusch_pdu->qam_mod_order = pusch_pdu->qam_mod_order<<1;
+      }
+    }
     pusch_pdu->nrOfLayers = 1;
 
     //Pusch Allocation in frequency domain [TS38.214, sec 6.1.2.2]
@@ -1053,35 +1095,7 @@ void schedule_fapi_ul_pdu(int Mod_idP,
     nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu_rel15 = &ul_dci_request_pdu->pdcch_pdu.pdcch_pdu_rel15;
     UL_dci_req->numPdus+=1;
 
-    int dci_formats[2];
-    int rnti_types[2];
-
-    NR_SearchSpace_t *ss;
-    int target_ss = NR_SearchSpace__searchSpaceType_PR_ue_Specific;
-
-    AssertFatal(bwp->bwp_Dedicated->pdcch_Config->choice.setup->searchSpacesToAddModList!=NULL,"searchPsacesToAddModList is null\n");
-    AssertFatal(bwp->bwp_Dedicated->pdcch_Config->choice.setup->searchSpacesToAddModList->list.count>0,
-                "searchPsacesToAddModList is empty\n");
-
-    int found=0;
-
-    for (int i=0;i<bwp->bwp_Dedicated->pdcch_Config->choice.setup->searchSpacesToAddModList->list.count;i++) {
-      ss=bwp->bwp_Dedicated->pdcch_Config->choice.setup->searchSpacesToAddModList->list.array[i];
-      AssertFatal(ss->controlResourceSetId != NULL,"ss->controlResourceSetId is null\n");
-      AssertFatal(ss->searchSpaceType != NULL,"ss->searchSpaceType is null\n");
-      if (ss->searchSpaceType->present == target_ss) {
-        found=1;
-        break;
-      }
-    }
-    AssertFatal(found==1,"Couldn't find an adequate searchspace\n");
-
-    if (ss->searchSpaceType->choice.ue_Specific->dci_Formats)
-      dci_formats[0]  = NR_UL_DCI_FORMAT_0_1;
-    else
-      dci_formats[0]  = NR_UL_DCI_FORMAT_0_0;
 
-    rnti_types[0]   = NR_RNTI_C;
     LOG_D(MAC,"Configuring ULDCI/PDCCH in %d.%d\n", frameP,slotP);
 
     int ret = nr_configure_pdcch(nr_mac,