forgot to account for prachStartSymbol in rx_nr_prach_ru

openair1/PHY/NR_TRANSPORT/nr_prach.c

@@ -175,13 +175,18 @@ void rx_nr_prach_ru(RU_t *ru,
 
   int msg1_frequencystart   = ru->config.prach_config.num_prach_fd_occasions_list[numRA].k1.value;
 
+  int sample_offset_slot = (prachStartSymbol==0?0:fp->ofdm_symbol_size*prachStartSymbol+fp->nb_prefix_samples0+fp->nb_prefix_samples*(prachStartSymbol-1));
+  //to be checked for mu=0;
+
+  LOG_D(PHY,"frame %d, slot %d: doing rx_nr_prach_ru for format %d, numRA %d, prachStartSymbol %d, prachOccasion %d\n",frame,slot,prachFormat,numRA,prachStartSymbol,prachOccasion);
+
   rxsigF            = ru->prach_rxsigF[prachOccasion];
 
   AssertFatal(ru->if_south == LOCAL_RF,"we shouldn't call this if if_south != LOCAL_RF\n");
 
   for (int aa=0; aa<ru->nb_rx; aa++){ 
     if (prach_sequence_length == 0) slot2=(slot/fp->slots_per_subframe)*fp->slots_per_subframe; 
-    prach[aa] = (int16_t*)&ru->common.rxdata[aa][(slot2*fp->get_samples_per_slot(slot,fp))-ru->N_TA_offset];
+    prach[aa] = (int16_t*)&ru->common.rxdata[aa][(slot2*fp->get_samples_per_slot(slot,fp))+sample_offset_slot-ru->N_TA_offset];
   } 
 
 

openair1/SCHED_NR/nr_prach_procedures.c

@@ -110,12 +110,12 @@ void L1_nr_prach_procedures(PHY_VARS_gNB *gNB,int frame,int slot) {
 		  &max_preamble_delay[0]
 		  );
       free_nr_prach_entry(gNB,prach_id);
-      LOG_I(PHY,"[RAPROC] Frame %d, slot %d : Most likely preamble %d, energy %d dB delay %d (prach_energy counter %d)\n",
-        frame,slot,
-        max_preamble[0],
-        max_preamble_energy[0]/10,
-        max_preamble_delay[0],
-	gNB->prach_energy_counter);
+      LOG_I(PHY,"[RAPROC] Frame %d, slot %d, occasion %d (prachStartSymbol %d) : Most likely preamble %d, energy %d dB delay %d (prach_energy counter %d)\n",
+	    frame,slot,prach_oc,prachStartSymbol,
+	    max_preamble[0],
+	    max_preamble_energy[0]/10,
+	    max_preamble_delay[0],
+	    gNB->prach_energy_counter);
 
       if ((gNB->prach_energy_counter == 100) && 
 	  (max_preamble_energy[0] > gNB->measurements.prach_I0+100)) {