changed ulsim to test with SMBV signal

openair1/SIMULATION/NR_PHY/ulsim.c

@@ -183,6 +183,7 @@ int main(int argc, char **argv)
   int pucch_tgt_snrx10 = 200;
   int ibwps=24;
   int ibwp_rboffset=41;
+  int params_from_file = 0;
   if ( load_configmodule(argc,argv,CONFIG_ENABLECMDLINEONLY) == 0 ) {
     exit_fun("[NR_ULSIM] Error, configuration module init failed\n");
   }
@@ -419,6 +420,10 @@ int main(int argc, char **argv)
       }
       break;
 
+    case 'Q':
+      params_from_file = 1;
+      break;
+
     default:
     case 'h':
       printf("%s -h(elp) -p(extended_prefix) -N cell_id -f output_filename -F input_filename -g channel_model -n n_frames -t Delayspread -s snr0 -S snr1 -x transmission_mode -y TXant -z RXant -i Intefrence0 -j Interference1 -A interpolation_file -C(alibration offset dB) -N CellId\n", argv[0]);
@@ -450,6 +455,7 @@ int main(int argc, char **argv)
       printf("-P Print ULSCH performances\n");
       printf("-T Enable PTRS, arguments list L_PTRS{0,1,2} K_PTRS{2,4}, e.g. -T 2 0 2 \n");
       printf("-U Change DMRS Config, arguments list DMRS TYPE{0=A,1=B} DMRS AddPos{0:3}, e.g. -U 2 0 2 \n");
+      printf("-Q If -F used, read parameters from file\n");
       exit(-1);
       break;
 
@@ -732,6 +738,7 @@ int main(int argc, char **argv)
     // 800 samples is N_TA_OFFSET for FR1 @ 30.72 Ms/s,
     AssertFatal(frame_parms->subcarrier_spacing==30000,"only 30 kHz for file input for now (%d)\n",frame_parms->subcarrier_spacing);
   
+    if (params_from_file) {
       fseek(input_fd,file_offset*((slot_length<<2)+4000+16),SEEK_SET);
       fread((void*)&n_rnti,sizeof(int16_t),1,input_fd);
       printf("rnti %x\n",n_rnti);
@@ -753,6 +760,8 @@ int main(int argc, char **argv)
       //    fread((void*)&harq_pid,sizeof(int16_t),1,input_fd);
       fread((void*)&dummy,sizeof(int16_t),1,input_fd);
       printf("harq_pid %d\n",harq_pid);
+    }
+    fseek(input_fd,file_offset*sizeof(int16_t)*2,SEEK_SET);
     fread((void*)&gNB->common_vars.rxdata[0][slot_offset-delay],
     sizeof(int16_t),
     slot_length<<1,