initializing beam_weights to I

openair1/PHY/INIT/nr_init_ru.c

@@ -106,35 +106,26 @@ int nr_phy_init_RU(RU_t *ru) {
     LOG_E(PHY,"[INIT] %s() RC.nb_nr_L1_inst:%d \n", __FUNCTION__, RC.nb_nr_L1_inst);
 
     for (i=0; i<RC.nb_nr_L1_inst; i++) {
-      for (p=0;p<15;p++) {
-	if (p == 0|| p==5) {
+      for (p=0;p<fp->Lmax;p++) {
+        if ((fp->L_ssb >> p) & 0x01)  {
 	  ru->beam_weights[i][p] = (int32_t **)malloc16_clear(ru->nb_tx*sizeof(int32_t*));
 	  for (j=0; j<ru->nb_tx; j++) {
 	    ru->beam_weights[i][p][j] = (int32_t *)malloc16_clear(fp->ofdm_symbol_size*sizeof(int32_t));
-	    // antenna ports 0-3 are mapped on antennas 0-3
-	    // antenna port 4 is mapped on antenna 0
-	    // antenna ports 5-14 are mapped on all antennas 
-	    if (((p<4) && (p==j)) || ((p==4) && (j==0))) {
+	    // setting identity matrix as first step for beam weights
+	    if (p==j) {
 	      for (re=0; re<fp->ofdm_symbol_size; re++) 
-              {
 		ru->beam_weights[i][p][j][re] = 0x00007fff; 
-
-                //LOG_D(PHY,"[INIT] lte_common_vars->beam_weights[%d][%d][%d][%d] = %d\n", i,p,j,re,ru->beam_weights[i][p][j][re]);
-              }
 	    }
-	    else if (p>4) {
+	    else {
 	      for (re=0; re<fp->ofdm_symbol_size; re++) 
-              {
-		ru->beam_weights[i][p][j][re] = 0x00007fff/ru->nb_tx; 
-                //LOG_D(PHY,"[INIT] lte_common_vars->beam_weights[%d][%d][%d][%d] = %d\n", i,p,j,re,ru->beam_weights[i][p][j][re]);
+		ru->beam_weights[i][p][j][re] = 0x00000000; 
 	    }  
-	    }  
-	    //LOG_D(PHY,"[INIT] lte_common_vars->beam_weights[%d][%d] = %p (%lu bytes)\n", i,j,ru->beam_weights[i][p][j], fp->ofdm_symbol_size*sizeof(int32_t)); 
-	  } // for (j=0
-	} // if (p<ru
+	  } // for j
 	} // for p
+      }
     } //for i
   } // !=IF5
+
   ru->common.sync_corr = (uint32_t*)malloc16_clear( LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*sizeof(uint32_t)*fp->samples_per_subframe_wCP );
 
   return(0);

openair1/PHY/MODULATION/beamforming.c

@@ -112,6 +112,7 @@ int nr_beam_precoding(int32_t **txdataF,
   memset(txdataF_BF[aa],0,sizeof(int32_t)*(frame_parms->ofdm_symbol_size));
 
   for (p=0; p<nb_antenna_ports; p++) {
+    if ((frame_parms->L_ssb >> p) & 0x01)  {
       multadd_cpx_vector((int16_t*)&txdataF[p][slot_offset_F+symbol*frame_parms->ofdm_symbol_size],
 			 (int16_t*)beam_weights[p][aa], 
 			 (int16_t*)&txdataF_BF[aa][symbol*frame_parms->ofdm_symbol_size], 
@@ -119,5 +120,6 @@ int nr_beam_precoding(int32_t **txdataF,
 			 frame_parms->ofdm_symbol_size, 
 			 15);
     }
+  }
 return 0;
 }

openair1/PHY/defs_RU.h

@@ -446,10 +446,8 @@ typedef struct RU_t_s{
   time_stats_t transport;
   /// RX and TX buffers for precoder output
   RU_COMMON            common;
-  /// beamforming weight vectors per eNB
+  /// beamforming weight vectors
   int32_t **beam_weights[NUMBER_OF_eNB_MAX+1][15];
-  /// beamforming weight vectors per eNB
-  int32_t **nrbeam_weights[NUMBER_OF_gNB_MAX+1][16];
   /// received frequency-domain signal for PRACH (IF4p5 RRU) 
   int16_t              **prach_rxsigF;
   /// received frequency-domain signal for PRACH BR (IF4p5 RRU) 

openair1/SCHED_NR/nr_ru_procedures.c

@@ -257,8 +257,7 @@ void nr_feptx_prec(RU_t *ru,int frame,int tti_tx) {
     VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_RU_FEPTX_PREC , 0);
   }
   else {
-
-    bw  = ru->nrbeam_weights[0];
+    bw  = ru->beam_weights[0];
     for (l=0;l<fp->symbols_per_slot;l++) {
       for (aa=0;aa<ru->nb_tx;aa++) {
 	nr_beam_precoding(ru->gNB_list[0]->common_vars.txdataF,