Interface MAC-PHY for RA: passing FAPI PRACH PDU params to PHY

openair1/PHY/INIT/nr_parms.c

@@ -344,14 +344,6 @@ int nr_init_frame_parms_ue(NR_DL_FRAME_PARMS *fp,
 
   fp->ssb_start_subcarrier = (12 * config->ssb_table.ssb_offset_point_a + sco);
 
-  // WIP temporary hardcoded
-  fp->prach_config_common.rootSequenceIndex = 22; // 0
-  fp->prach_config_common.prach_Config_enabled = 1;
-  fp->prach_config_common.prach_ConfigInfo.zeroCorrelationZoneConfig = 1; // 13
-  fp->prach_config_common.prach_ConfigInfo.prach_ConfigIndex = 0; // 98
-  fp->prach_config_common.prach_ConfigInfo.highSpeedFlag = 0;
-  fp->prach_config_common.prach_ConfigInfo.msg1_frequencystart = 0;
-
   // definition of Lmax according to ts 38.213 section 4.1
   if (fp->dl_CarrierFreq < 6e9) {
     if(fp->frame_type && (fp->ssb_type==2))

openair1/PHY/NR_UE_TRANSPORT/nr_prach.c

@@ -65,9 +65,9 @@ int32_t generate_nr_prach(PHY_VARS_NR_UE *ue, uint8_t gNB_id, uint8_t subframe)
   //uint8_t tdd_config         = ue->frame_parms.tdd_config;
   NR_DL_FRAME_PARMS *fp=&ue->frame_parms;
   uint16_t rootSequenceIndex = fp->prach_config_common.rootSequenceIndex;
-  uint8_t prach_ConfigIndex  = fp->prach_config_common.prach_ConfigInfo.prach_ConfigIndex;
   uint8_t Ncs_config         = fp->prach_config_common.prach_ConfigInfo.zeroCorrelationZoneConfig;
   uint8_t restricted_set     = fp->prach_config_common.prach_ConfigInfo.highSpeedFlag;
+  uint16_t prach_fmt         = ue->prach_resources[gNB_id]->prach_format;
   uint8_t preamble_index     = ue->prach_resources[gNB_id]->ra_PreambleIndex;
   //uint8_t tdd_mapindex       = ue->prach_resources[gNB_id]->ra_TDD_map_index;
   int16_t *prachF           = ue->prach_vars[gNB_id]->prachF;
@@ -82,7 +82,6 @@ int32_t generate_nr_prach(PHY_VARS_NR_UE *ue, uint8_t gNB_id, uint8_t subframe)
   uint16_t preamble_index0,n_shift_ra,n_shift_ra_bar;
   uint16_t d_start,numshift;
 
-  uint16_t prach_fmt = get_nr_prach_fmt(prach_ConfigIndex,fp->frame_type,fp->freq_range);
   //uint8_t Nsp=2;
   //uint8_t f_ra,t1_ra;
   uint16_t N_ZC = (prach_fmt<4)?839:139;
@@ -224,9 +223,15 @@ int32_t generate_nr_prach(PHY_VARS_NR_UE *ue, uint8_t gNB_id, uint8_t subframe)
 #ifdef NR_PRACH_DEBUG
 
   if (NCS>0)
-    LOG_I(PHY,"Generate PRACH for RootSeqIndex %d, Preamble Index %d, PRACH Format %x, prach_ConfigIndex %d, NCS %d (NCS_config %d, N_ZC/NCS %d): Preamble_offset %d, Preamble_shift %d\n",
-          rootSequenceIndex,preamble_index,prach_fmt,prach_ConfigIndex,NCS,Ncs_config,N_ZC/NCS,
-          preamble_offset,preamble_shift);
+    LOG_I(PHY,"Generate PRACH for RootSeqIndex %d, Preamble Index %d, PRACH Format %x, NCS %d (NCS_config %d, N_ZC/NCS %d): Preamble_offset %d, Preamble_shift %d\n",
+      rootSequenceIndex,
+      preamble_index,
+      prach_fmt,
+      NCS,
+      Ncs_config,
+      N_ZC/NCS,
+      preamble_offset,
+      preamble_shift);
 
 #endif
 

openair1/SCHED_NR_UE/fapi_nr_ue_l1.c

@@ -54,8 +54,6 @@ int8_t nr_ue_scheduled_response(nr_scheduled_response_t *scheduled_response){
     NR_UE_PDCCH *pdcch_vars = PHY_vars_UE_g[module_id][cc_id]->pdcch_vars[thread_id][0];
     NR_UE_DLSCH_t *dlsch0 = PHY_vars_UE_g[module_id][cc_id]->dlsch[thread_id][0][0];
     NR_UE_ULSCH_t *ulsch0 = PHY_vars_UE_g[module_id][cc_id]->ulsch[thread_id][0][0];
-    //NR_DL_FRAME_PARMS frame_parms = PHY_vars_UE_g[module_id][cc_id]->frame_parms;
-    //NR_PRACH_RESOURCES_t *prach_resources = PHY_vars_UE_g[module_id][cc_id]->prach_resources[0];
 
     if(scheduled_response->dl_config != NULL){
       fapi_nr_dl_config_request_t *dl_config = scheduled_response->dl_config;
@@ -112,10 +110,16 @@ int8_t nr_ue_scheduled_response(nr_scheduled_response_t *scheduled_response){
 
       for (i = 0; i < ul_config->number_pdus; ++i){
 
-        uint8_t pdu_type = ul_config->ul_config_list[i].pdu_type, pucch_resource_id, current_harq_pid, format;
+        uint8_t pdu_type = ul_config->ul_config_list[i].pdu_type, pucch_resource_id, current_harq_pid, format, gNB_id = 0;
+        /* PRACH */
+        NR_DL_FRAME_PARMS *fp;
+        NR_PRACH_RESOURCES_t *prach_resources;
+        NR_PRACH_CONFIG_COMMON *prach_config_common;
+        fapi_nr_ul_config_prach_pdu *prach_config_pdu;
+        /* PUSCH */
         fapi_nr_ul_config_pusch_pdu_rel15_t *pusch_config_pdu;
+        /* PUCCH */
         fapi_nr_ul_config_pucch_pdu *pucch_config_pdu;
-        fapi_nr_ul_config_prach_pdu *prach_config_pdu;
         PUCCH_ConfigCommon_nr_t *pucch_config_common_nr;
         PUCCH_Config_t *pucch_config_dedicated_nr;
         PUCCH_format_t *format_params;
@@ -183,13 +187,19 @@ int8_t nr_ue_scheduled_response(nr_scheduled_response_t *scheduled_response){
 
         case (FAPI_NR_UL_CONFIG_TYPE_PRACH):
           // prach config pdu
+          fp = &PHY_vars_UE_g[module_id][cc_id]->frame_parms;
+          prach_resources = &PHY_vars_UE_g[module_id][cc_id]->prach_resources[gNB_id];
+          prach_config_common = &fp->prach_config_common;
           prach_config_pdu = &ul_config->ul_config_list[i].prach_config_pdu;
-          /*frame_parms.prach_config_common.rootSequenceIndex = prach_config_pdu->root_sequence_index;
-          frame_parms.prach_config_common.prach_ConfigInfo.prach_ConfigIndex = prach_config_pdu->prach_configuration_index;
-          frame_parms.prach_config_common.prach_ConfigInfo.zeroCorrelationZoneConfig = prach_config_pdu->zero_correlation_zone_config;
-          frame_parms.prach_config_common.prach_ConfigInfo.highSpeedFlag = prach_config_pdu->restrictedset_config;
-          frame_parms.prach_config_common.prach_ConfigInfo.prach_FreqOffset = prach_config_pdu->prach_freq_offset;*/
-          ////prach_resources->ra_PreambleIndex = prach_config_pdu->preamble_index;
+
+          prach_config_common->prach_Config_enabled = 1;
+          prach_config_common->rootSequenceIndex = prach_config_pdu->root_seq_id;
+          prach_config_common->prach_ConfigInfo.zeroCorrelationZoneConfig = prach_config_pdu->num_cs;
+          prach_config_common->prach_ConfigInfo.highSpeedFlag = prach_config_pdu->restricted_set;
+          prach_config_common->prach_ConfigInfo.msg1_frequencystart = prach_config_pdu->freq_msg1;
+
+          prach_resources->prach_format = prach_config_pdu->prach_format;
+
         break;
 
         default:

openair1/SCHED_NR_UE/phy_procedures_nr_ue.c

@@ -2273,12 +2273,8 @@ void phy_procedures_nrUE_TX(PHY_VARS_NR_UE *ue,
 
   /* RACH */
   if ((ue->UE_mode[gNB_id] == PRACH) && (ue->frame_parms.prach_config_common.prach_Config_enabled == 1)) {
-
-    // check if we have PRACH opportunity
-    if (is_nr_prach_subframe(&ue->frame_parms, frame_tx, slot_tx)) {
       nr_ue_prach_procedures(ue, proc, gNB_id, mode);
   }
-  }
   else {
     ue->generate_nr_prach = 0;
   }