diff --git a/executables/nr-ru.c b/executables/nr-ru.c
index 7d4e3607df..3ef5b3d157 100644
--- a/executables/nr-ru.c
+++ b/executables/nr-ru.c
@@ -1049,58 +1049,21 @@ void fill_rf_config(RU_t *ru, char *rf_config_file) {
   int mu = config->ssb_config.scs_common.value;
   int N_RB = config->carrier_config.dl_grid_size[config->ssb_config.scs_common.value].value;
 
-  if (mu == NR_MU_0) { //or if LTE
-    if(N_RB == 100) {
-      if (fp->threequarter_fs) {
-        cfg->sample_rate=23.04e6;
-        cfg->samples_per_frame = 230400;
-        cfg->tx_bw = 10e6;
-        cfg->rx_bw = 10e6;
-      } else {
-        cfg->sample_rate=30.72e6;
-        cfg->samples_per_frame = 307200;
-        cfg->tx_bw = 10e6;
-        cfg->rx_bw = 10e6;
-      }
-    } else if(N_RB == 50) {
-      cfg->sample_rate=15.36e6;
-      cfg->samples_per_frame = 153600;
-      cfg->tx_bw = 5e6;
-      cfg->rx_bw = 5e6;
-    } else if (N_RB == 25) {
-      cfg->sample_rate=7.68e6;
-      cfg->samples_per_frame = 76800;
-      cfg->tx_bw = 2.5e6;
-      cfg->rx_bw = 2.5e6;
-    } else if (N_RB == 6) {
-      cfg->sample_rate=1.92e6;
-      cfg->samples_per_frame = 19200;
-      cfg->tx_bw = 1.5e6;
-      cfg->rx_bw = 1.5e6;
-    } else AssertFatal(1==0,"Unknown N_RB %d\n",N_RB);
-  } else if (mu == NR_MU_1) {
-    if(N_RB == 273) {
-      if (fp->threequarter_fs) {
-        AssertFatal(0 == 1,"three quarter sampling not supported for N_RB 273\n");
-      } else {
-        cfg->sample_rate=122.88e6;
-        cfg->samples_per_frame = 1228800;
-        cfg->tx_bw = 100e6;
-        cfg->rx_bw = 100e6;
-      }
-    } else if(N_RB == 217) {
+  if (mu == NR_MU_0) {
+    switch(N_RB) {
+    case 270:
       if (fp->threequarter_fs) {
         cfg->sample_rate=92.16e6;
         cfg->samples_per_frame = 921600;
-        cfg->tx_bw = 80e6;
-        cfg->rx_bw = 80e6;
+        cfg->tx_bw = 50e6;
+        cfg->rx_bw = 50e6;
       } else {
-        cfg->sample_rate=122.88e6;
-        cfg->samples_per_frame = 1228800;
-        cfg->tx_bw = 80e6;
-        cfg->rx_bw = 80e6;
+        cfg->sample_rate=61.44e6;
+        cfg->samples_per_frame = 614400;
+        cfg->tx_bw = 50e6;
+        cfg->rx_bw = 50e6;
       }
-    } else if(N_RB == 106) {
+    case 216:
       if (fp->threequarter_fs) {
         cfg->sample_rate=46.08e6;
         cfg->samples_per_frame = 460800;
@@ -1113,29 +1076,154 @@ void fill_rf_config(RU_t *ru, char *rf_config_file) {
         cfg->tx_bw = 40e6;
         cfg->rx_bw = 40e6;
       }
-    } else if(N_RB == 24) {
+      break;
+    case 106:
       if (fp->threequarter_fs) {
-        AssertFatal(0 == 1,"three quarter sampling not supported for N_RB 24\n");
-      } else {
+        cfg->sample_rate=23.04e6;
+        cfg->samples_per_frame = 230400;
+        cfg->tx_bw = 20e6;
+        cfg->rx_bw = 20e6;
+      }
+      else {
+        cfg->sample_rate=30.72e6;
+        cfg->samples_per_frame = 307200;
+        cfg->tx_bw = 20e6;
+        cfg->rx_bw = 20e6;
+      }
+      break;
+    case 52:
+      if (fp->threequarter_fs) {
+        cfg->sample_rate=11.52e6;
+        cfg->samples_per_frame = 115200;
+        cfg->tx_bw = 10e6;
+        cfg->rx_bw = 10e6;
+      }
+      else {
         cfg->sample_rate=15.36e6;
         cfg->samples_per_frame = 153600;
         cfg->tx_bw = 10e6;
         cfg->rx_bw = 10e6;
       }
-    } else {
+    case 25:
+      if (fp->threequarter_fs) {
+        cfg->sample_rate=5.76e6;
+        cfg->samples_per_frame = 57600;
+        cfg->tx_bw = 5e6;
+        cfg->rx_bw = 5e6;
+      }
+      else {
+        cfg->sample_rate=7.68e6;
+        cfg->samples_per_frame = 76800;
+        cfg->tx_bw = 5e6;
+        cfg->rx_bw = 5e6;
+      }
+      break;
+    default:
+      AssertFatal(0==1,"N_RB %d not yet supported for numerology %d\n",N_RB,mu);
+    }
+  } else if (mu == NR_MU_1) {
+    switch(N_RB) {
+    case 273:
+      if (fp->threequarter_fs) {
+        cfg->sample_rate=184.32e6;
+        cfg->samples_per_frame = 1843200;
+        cfg->tx_bw = 100e6;
+        cfg->rx_bw = 100e6;
+      } else {
+        cfg->sample_rate=122.88e6;
+        cfg->samples_per_frame = 1228800;
+        cfg->tx_bw = 100e6;
+        cfg->rx_bw = 100e6;
+      }
+      break;
+    case 217:
+      if (fp->threequarter_fs) {
+        cfg->sample_rate=92.16e6;
+        cfg->samples_per_frame = 921600;
+        cfg->tx_bw = 80e6;
+        cfg->rx_bw = 80e6;
+      } else {
+        cfg->sample_rate=122.88e6;
+        cfg->samples_per_frame = 1228800;
+        cfg->tx_bw = 80e6;
+        cfg->rx_bw = 80e6;
+      }
+      break;
+    case 106:
+      if (fp->threequarter_fs) {
+        cfg->sample_rate=46.08e6;
+        cfg->samples_per_frame = 460800;
+        cfg->tx_bw = 40e6;
+        cfg->rx_bw = 40e6;
+      }
+      else {
+        cfg->sample_rate=61.44e6;
+        cfg->samples_per_frame = 614400;
+        cfg->tx_bw = 40e6;
+        cfg->rx_bw = 40e6;
+      }
+      break;
+    case 51:
+      if (fp->threequarter_fs) {
+        cfg->sample_rate=23.04e6;
+        cfg->samples_per_frame = 230400;
+        cfg->tx_bw = 20e6;
+        cfg->rx_bw = 20e6;
+      }
+      else {
+        cfg->sample_rate=30.72e6;
+        cfg->samples_per_frame = 307200;
+        cfg->tx_bw = 20e6;
+        cfg->rx_bw = 20e6;
+      }
+      break;
+    case 24:
+      if (fp->threequarter_fs) {
+        cfg->sample_rate=11.52e6;
+        cfg->samples_per_frame = 115200;
+        cfg->tx_bw = 10e6;
+        cfg->rx_bw = 10e6;
+      }
+      else {
+        cfg->sample_rate=15.36e6;
+        cfg->samples_per_frame = 153600;
+        cfg->tx_bw = 10e6;
+        cfg->rx_bw = 10e6;
+      }
+      break;
+    default:
       AssertFatal(0==1,"N_RB %d not yet supported for numerology %d\n",N_RB,mu);
     }
   } else if (mu == NR_MU_3) {
-    if (N_RB == 66) {
-      cfg->sample_rate = 122.88e6;
-      cfg->samples_per_frame = 1228800;
-      cfg->tx_bw = 100e6;
-      cfg->rx_bw = 100e6;
-    } else if(N_RB == 32) {
-      cfg->sample_rate=61.44e6;
-      cfg->samples_per_frame = 614400;
-      cfg->tx_bw = 50e6;
-      cfg->rx_bw = 50e6;
+    switch(N_RB) {
+    case 66:
+      if (fp->threequarter_fs) {
+        cfg->sample_rate=184.32e6;
+        cfg->samples_per_frame = 1843200;
+        cfg->tx_bw = 100e6;
+        cfg->rx_bw = 100e6;
+      } else {
+        cfg->sample_rate = 122.88e6;
+        cfg->samples_per_frame = 1228800;
+        cfg->tx_bw = 100e6;
+        cfg->rx_bw = 100e6;
+      }
+      break;
+    case 32:
+      if (fp->threequarter_fs) {
+        cfg->sample_rate=92.16e6;
+        cfg->samples_per_frame = 921600;
+        cfg->tx_bw = 50e6;
+        cfg->rx_bw = 50e6;
+      } else {
+        cfg->sample_rate=61.44e6;
+        cfg->samples_per_frame = 614400;
+        cfg->tx_bw = 50e6;
+        cfg->rx_bw = 50e6;
+      }
+      break;
+    default:
+      AssertFatal(0==1,"N_RB %d not yet supported for numerology %d\n",N_RB,mu);
     }
   } else {
     AssertFatal(0 == 1,"Numerology %d not supported for the moment\n",mu);
@@ -1182,60 +1270,52 @@ int setup_RU_buffers(RU_t *ru) {
   int i,j;
   int card,ant;
   //uint16_t N_TA_offset = 0;
-  NR_DL_FRAME_PARMS *frame_parms;
+  NR_DL_FRAME_PARMS *fp;
   nfapi_nr_config_request_scf_t *config = &ru->config;
 
   if (ru) {
-    frame_parms = ru->nr_frame_parms;
-    printf("setup_RU_buffers: frame_parms = %p\n",frame_parms);
+    fp = ru->nr_frame_parms;
+    printf("setup_RU_buffers: frame_parms = %p\n",fp);
   } else {
     printf("ru pointer is NULL\n");
     return(-1);
   }
+
   int mu = config->ssb_config.scs_common.value;
   int N_RB = config->carrier_config.dl_grid_size[config->ssb_config.scs_common.value].value;
 
-
   if (config->cell_config.frame_duplex_type.value == TDD) {
     int N_TA_offset =  config->carrier_config.uplink_frequency.value < 6000000 ? 400 : 431; // reference samples  for 25600Tc @ 30.72 Ms/s for FR1, same @ 61.44 Ms/s for FR2
 
     double factor=1;
-
     switch (mu) {
-    case 0: //15 kHz scs
-      AssertFatal(N_TA_offset == 400,"scs_common 15kHz only for FR1\n");
-      if (N_RB <= 25) factor = .25;      // 7.68 Ms/s
-      else if (N_RB <=50) factor = .5;   // 15.36 Ms/s
-      else if (N_RB <=75) factor = 1.0;  // 30.72 Ms/s
-      else if (N_RB <=100) factor = 1.0; // 30.72 Ms/s
-      else AssertFatal(1==0,"Too many PRBS for mu=0\n");
-      break;
-    case 1: //30 kHz sc
-      AssertFatal(N_TA_offset == 400,"scs_common 30kHz only for FR1\n");
-      if (N_RB <= 106) factor = 2.0; // 61.44 Ms/s
-      else if (N_RB <= 275) factor = 4.0; // 122.88 Ms/s
-      break;
-    case 2: //60 kHz scs
-      AssertFatal(1==0,"scs_common should not be 60 kHz\n");
-      break;
-    case 3: //120 kHz scs
-      AssertFatal(N_TA_offset == 431,"scs_common 120kHz only for FR2\n");
-      break;
-    case 4: //240 kHz scs
-      AssertFatal(1==0,"scs_common should not be 60 kHz\n");
-      if (N_RB <= 32) factor = 1.0; // 61.44 Ms/s
-      else if (N_RB <= 66) factor = 2.0; // 122.88 Ms/s
-      else AssertFatal(1==0,"N_RB %d is too big for curretn FR2 implementation\n",N_RB);
-      break;
-
-      if      (N_RB == 100) ru->N_TA_offset = 624;
-      else if (N_RB == 50)  ru->N_TA_offset = 624/2;
-      else if (N_RB == 25)  ru->N_TA_offset = 624/4;
+      case 0: //15 kHz scs
+        AssertFatal(N_TA_offset == 400, "scs_common 15kHz only for FR1\n");
+        factor = fp->samples_per_subframe / 30720.0;
+        break;
+      case 1: //30 kHz sc
+        AssertFatal(N_TA_offset == 400, "scs_common 30kHz only for FR1\n");
+        factor = fp->samples_per_subframe / 30720.0;
+        break;
+      case 2: //60 kHz scs
+        AssertFatal(1==0, "scs_common should not be 60 kHz\n");
+        break;
+      case 3: //120 kHz scs
+        AssertFatal(N_TA_offset == 431, "scs_common 120kHz only for FR2\n");
+        factor = fp->samples_per_subframe / 61440.0;
+        break;
+      case 4: //240 kHz scs
+        AssertFatal(N_TA_offset == 431, "scs_common 240kHz only for FR2\n");
+        factor = fp->samples_per_subframe / 61440.0;
+        break;
+      default:
+        AssertFatal(1==0, "Invalid scs_common!\n");
     }
-    if (frame_parms->threequarter_fs == 1) factor = factor*.75;
+
     ru->N_TA_offset = (int)(N_TA_offset * factor);
-    LOG_I(PHY,"RU %d Setting N_TA_offset to %d samples (factor %f, UL Freq %d, N_RB %d)\n",ru->idx,ru->N_TA_offset,factor,
-	  config->carrier_config.uplink_frequency.value, N_RB);
+
+    LOG_I(PHY,"RU %d Setting N_TA_offset to %d samples (factor %f, UL Freq %d, N_RB %d, mu %d)\n",ru->idx,ru->N_TA_offset,factor,
+	  config->carrier_config.uplink_frequency.value, N_RB, mu);
   }
   else ru->N_TA_offset = 0;
 
diff --git a/executables/nr-softmodem.c b/executables/nr-softmodem.c
index d986e98267..4e4aa50661 100644
--- a/executables/nr-softmodem.c
+++ b/executables/nr-softmodem.c
@@ -135,9 +135,6 @@ double rx_gain[MAX_NUM_CCs][4] = {{110,0,0,0},{20,0,0,0}};
 
 double rx_gain_off = 0.0;
 
-double sample_rate=30.72e6;
-double bw = 10.0e6;
-
 static int tx_max_power[MAX_NUM_CCs]; /* =  {0,0}*/;
 
 
@@ -475,93 +472,6 @@ void set_default_frame_parms(nfapi_nr_config_request_scf_t *config[MAX_NUM_CCs],
   }
 }
 
-/*
-void init_openair0(void) {
-
-  int card;
-  int i;
-
-  for (card=0; card<MAX_CARDS; card++) {
-
-    openair0_cfg[card].mmapped_dma=mmapped_dma;
-    openair0_cfg[card].configFilename = NULL;
-
-    if(config[0]->rf_config.dl_carrier_bandwidth.value == 100) {
-      if (frame_parms[0]->threequarter_fs) {
-  openair0_cfg[card].sample_rate=23.04e6;
-  openair0_cfg[card].samples_per_frame = 230400;
-  openair0_cfg[card].tx_bw = 10e6;
-  openair0_cfg[card].rx_bw = 10e6;
-      } else {
-  openair0_cfg[card].sample_rate=30.72e6;
-  openair0_cfg[card].samples_per_frame = 307200;
-  openair0_cfg[card].tx_bw = 10e6;
-  openair0_cfg[card].rx_bw = 10e6;
-      }
-    } else if(config[0]->rf_config.dl_carrier_bandwidth.value == 50) {
-      openair0_cfg[card].sample_rate=15.36e6;
-      openair0_cfg[card].samples_per_frame = 153600;
-      openair0_cfg[card].tx_bw = 5e6;
-      openair0_cfg[card].rx_bw = 5e6;
-    } else if (config[0]->rf_config.dl_carrier_bandwidth.value == 25) {
-      openair0_cfg[card].sample_rate=7.68e6;
-      openair0_cfg[card].samples_per_frame = 76800;
-      openair0_cfg[card].tx_bw = 2.5e6;
-      openair0_cfg[card].rx_bw = 2.5e6;
-    } else if (config[0]->rf_config.dl_carrier_bandwidth.value == 6) {
-      openair0_cfg[card].sample_rate=1.92e6;
-      openair0_cfg[card].samples_per_frame = 19200;
-      openair0_cfg[card].tx_bw = 1.5e6;
-      openair0_cfg[card].rx_bw = 1.5e6;
-    }
-
-
-    if (config[0]->subframe_config.duplex_mode.value==TDD)
-      openair0_cfg[card].duplex_mode = duplex_mode_TDD;
-    else //FDD
-      openair0_cfg[card].duplex_mode = duplex_mode_FDD;
-
-    printf("HW: Configuring card %d, nb_antennas_tx/rx %d/%d\n",card,
-     RC.gNB[0]->gNB_config.rf_config.tx_antenna_ports.value,
-     RC.gNB[0]->gNB_config.rf_config.tx_antenna_ports.value );
-    openair0_cfg[card].Mod_id = 0;
-
-    openair0_cfg[card].num_rb_dl=config[0]->rf_config.dl_carrier_bandwidth.value;
-
-    openair0_cfg[card].clock_source = clock_source;
-
-
-    openair0_cfg[card].tx_num_channels=min(2,RC.gNB[0]->gNB_config.rf_config.tx_antenna_ports.value );
-    openair0_cfg[card].rx_num_channels=min(2,RC.gNB[0]->gNB_config.rf_config.tx_antenna_ports.value );
-
-    for (i=0; i<4; i++) {
-
-      if (i<openair0_cfg[card].tx_num_channels)
-  openair0_cfg[card].tx_freq[i] = downlink_frequency[0][i] ;
-      else
-  openair0_cfg[card].tx_freq[i]=0.0;
-
-      if (i<openair0_cfg[card].rx_num_channels)
-  openair0_cfg[card].rx_freq[i] =downlink_frequency[0][i] + uplink_frequency_offset[0][i] ;
-      else
-  openair0_cfg[card].rx_freq[i]=0.0;
-
-      openair0_cfg[card].autocal[i] = 1;
-      openair0_cfg[card].tx_gain[i] = tx_gain[0][i];
-      openair0_cfg[card].rx_gain[i] = RC.gNB[0]->rx_total_gain_dB;
-
-
-      openair0_cfg[card].configFilename = get_softmodem_params()->rf_config_file;
-      printf("Card %d, channel %d, Setting tx_gain %f, rx_gain %f, tx_freq %f, rx_freq %f\n",
-       card,i, openair0_cfg[card].tx_gain[i],
-       openair0_cfg[card].rx_gain[i],
-       openair0_cfg[card].tx_freq[i],
-       openair0_cfg[card].rx_freq[i]);
-    }
-  } // for loop on cards
-}
-*/
-
 void wait_RUs(void) {
   LOG_I(PHY,"Waiting for RUs to be configured ... RC.ru_mask:%02lx\n", RC.ru_mask);
   // wait for all RUs to be configured over fronthaul
diff --git a/executables/nr-ue.c b/executables/nr-ue.c
index 6833f2fed3..fcea62ee53 100644
--- a/executables/nr-ue.c
+++ b/executables/nr-ue.c
@@ -237,43 +237,6 @@ static void UE_synch(void *arg) {
               openair0_cfg[UE->rf_map.card].rx_freq[0],
               openair0_cfg[UE->rf_map.card].tx_freq[0]);
 
-        // reconfigure for potentially different bandwidth
-        switch(UE->frame_parms.N_RB_DL) {
-          case 6:
-            openair0_cfg[UE->rf_map.card].sample_rate =1.92e6;
-            openair0_cfg[UE->rf_map.card].rx_bw          =.96e6;
-            openair0_cfg[UE->rf_map.card].tx_bw          =.96e6;
-            //            openair0_cfg[0].rx_gain[0] -= 12;
-            break;
-
-          case 25:
-            openair0_cfg[UE->rf_map.card].sample_rate =7.68e6;
-            openair0_cfg[UE->rf_map.card].rx_bw          =2.5e6;
-            openair0_cfg[UE->rf_map.card].tx_bw          =2.5e6;
-            //            openair0_cfg[0].rx_gain[0] -= 6;
-            break;
-
-          case 50:
-            openair0_cfg[UE->rf_map.card].sample_rate =15.36e6;
-            openair0_cfg[UE->rf_map.card].rx_bw          =5.0e6;
-            openair0_cfg[UE->rf_map.card].tx_bw          =5.0e6;
-            //            openair0_cfg[0].rx_gain[0] -= 3;
-            break;
-
-          case 100:
-            openair0_cfg[UE->rf_map.card].sample_rate=30.72e6;
-            openair0_cfg[UE->rf_map.card].rx_bw=10.0e6;
-            openair0_cfg[UE->rf_map.card].tx_bw=10.0e6;
-            //            openair0_cfg[0].rx_gain[0] -= 0;
-            break;
-
-          case 66:
-            openair0_cfg[UE->rf_map.card].sample_rate=122.88e6;
-            openair0_cfg[UE->rf_map.card].rx_bw=100.e6;
-            openair0_cfg[UE->rf_map.card].tx_bw=100.e6;
-            break;
-        }
-
         if (UE->mode != loop_through_memory) {
           UE->rfdevice.trx_set_freq_func(&UE->rfdevice,&openair0_cfg[0],0);
           //UE->rfdevice.trx_set_gains_func(&openair0,&openair0_cfg[0]);
diff --git a/executables/nr-uesoftmodem.c b/executables/nr-uesoftmodem.c
index 4f445f394d..7624506011 100644
--- a/executables/nr-uesoftmodem.c
+++ b/executables/nr-uesoftmodem.c
@@ -145,7 +145,6 @@ int          chain_offset = 0;
 int           card_offset = 0;
 uint64_t num_missed_slots = 0; // counter for the number of missed slots
 int     transmission_mode = 1;
-int            numerology = 0;
 int        usrp_tx_thread = 0;
 int           oaisim_flag = 0;
 int            emulate_rf = 0;
@@ -316,90 +315,10 @@ void init_openair0(void) {
 
   for (card=0; card<MAX_CARDS; card++) {
     uint64_t dl_carrier, ul_carrier;
-    openair0_cfg[card].configFilename = NULL;
-    openair0_cfg[card].threequarter_fs = frame_parms->threequarter_fs;
-    numerology = frame_parms->numerology_index;
-    if(frame_parms->N_RB_DL == 24) {
-      if (numerology==1) {
-        openair0_cfg[card].sample_rate=15.36e6;
-        openair0_cfg[card].samples_per_frame = 153600;
-      } else {
-        LOG_E(PHY,"Unsupported numerology!\n");
-        exit(-1);
-      }
-    }else if(frame_parms->N_RB_DL == 66) {
-      if (numerology==3) {
-        openair0_cfg[card].sample_rate=122.88e6;
-        openair0_cfg[card].samples_per_frame = 1228800;
-      } else {
-        LOG_E(PHY,"Unsupported numerology! FR2 supports only 120KHz SCS for now.\n");
-        exit(-1);
-      }
-    }else if(frame_parms->N_RB_DL == 32) {
-      if (numerology==3) {
-        openair0_cfg[card].sample_rate=61.44e6;
-        openair0_cfg[card].samples_per_frame = 614400;
-      } else {
-        LOG_E(PHY,"Unsupported numerology! FR2 supports only 120KHz SCS for now.\n");
-        exit(-1);
-      }
-    }else if(frame_parms->N_RB_DL == 217) {
-      if (numerology==1) {
-        if (frame_parms->threequarter_fs) {
-          openair0_cfg[card].sample_rate=92.16e6;
-          openair0_cfg[card].samples_per_frame = 921600;
-        }
-        else {
-          openair0_cfg[card].sample_rate=122.88e6;
-          openair0_cfg[card].samples_per_frame = 1228800;
-        }
-      } else {
-        LOG_E(PHY,"Unsupported numerology!\n");
-        exit(-1);
-      }
-    } else if(frame_parms->N_RB_DL == 273) {
-      if (numerology==1) {
-        if (frame_parms->threequarter_fs) {
-          AssertFatal(0 == 1,"three quarter sampling not supported for N_RB 273\n");
-        }
-        else {
-          openair0_cfg[card].sample_rate=122.88e6;
-          openair0_cfg[card].samples_per_frame = 1228800;
-        }
-      } else {
-        LOG_E(PHY,"Unsupported numerology!\n");
-        exit(-1);
-      }
-    } else if(frame_parms->N_RB_DL == 106) {
-      if (numerology==0) {
-        if (frame_parms->threequarter_fs) {
-          openair0_cfg[card].sample_rate=23.04e6;
-          openair0_cfg[card].samples_per_frame = 230400;
-        } else {
-          openair0_cfg[card].sample_rate=30.72e6;
-          openair0_cfg[card].samples_per_frame = 307200;
-        }
-      } else if (numerology==1) {
-        if (frame_parms->threequarter_fs) {
-          openair0_cfg[card].sample_rate=46.08e6;
-          openair0_cfg[card].samples_per_frame = 460800;
-	}
-	else {
-          openair0_cfg[card].sample_rate=61.44e6;
-          openair0_cfg[card].samples_per_frame = 614400;
-        }
-      } else if (numerology==2) {
-        openair0_cfg[card].sample_rate=122.88e6;
-        openair0_cfg[card].samples_per_frame = 1228800;
-      } else {
-        LOG_E(PHY,"Unsupported numerology!\n");
-        exit(-1);
-      }
-    }
-    else {
-      LOG_E(PHY,"Unknown NB_RB %d!\n",frame_parms->N_RB_DL);
-      exit(-1);
-    }
+    openair0_cfg[card].configFilename    = NULL;
+    openair0_cfg[card].threequarter_fs   = frame_parms->threequarter_fs;
+    openair0_cfg[card].sample_rate       = frame_parms->samples_per_subframe * 1e3;
+    openair0_cfg[card].samples_per_frame = frame_parms->samples_per_frame;
 
     if (frame_parms->frame_type==TDD)
       openair0_cfg[card].duplex_mode = duplex_mode_TDD;
@@ -413,8 +332,9 @@ void init_openair0(void) {
     openair0_cfg[card].tx_num_channels = min(2, frame_parms->nb_antennas_tx);
     openair0_cfg[card].rx_num_channels = min(2, frame_parms->nb_antennas_rx);
 
-    LOG_I(PHY, "HW: Configuring card %d, tx/rx num_channels %d/%d, duplex_mode %s\n",
+    LOG_I(PHY, "HW: Configuring card %d, sample_rate %f, tx/rx num_channels %d/%d, duplex_mode %s\n",
       card,
+      openair0_cfg[card].sample_rate,
       openair0_cfg[card].tx_num_channels,
       openair0_cfg[card].rx_num_channels,
       duplex_mode[openair0_cfg[card].duplex_mode]);
diff --git a/openair1/PHY/INIT/nr_init_ue.c b/openair1/PHY/INIT/nr_init_ue.c
index 8bcc58160f..3132fb9960 100644
--- a/openair1/PHY/INIT/nr_init_ue.c
+++ b/openair1/PHY/INIT/nr_init_ue.c
@@ -507,50 +507,36 @@ void init_N_TA_offset(PHY_VARS_NR_UE *ue){
   if (fp->frame_type == FDD) {
     ue->N_TA_offset = 0;
   } else {
-    int N_RB = fp->N_RB_DL;
     int N_TA_offset = fp->ul_CarrierFreq < 6e9 ? 400 : 431; // reference samples  for 25600Tc @ 30.72 Ms/s for FR1, same @ 61.44 Ms/s for FR2
-    double factor = 1;
+
+    double factor = 1.0;
     switch (fp->numerology_index) {
       case 0: //15 kHz scs
         AssertFatal(N_TA_offset == 400, "scs_common 15kHz only for FR1\n");
-        if (N_RB <= 25) factor = .25;      // 7.68 Ms/s
-        else if (N_RB <=50) factor = .5;   // 15.36 Ms/s
-        else if (N_RB <=75) factor = 1.0;  // 30.72 Ms/s
-        else if (N_RB <=100) factor = 1.0; // 30.72 Ms/s
-        else AssertFatal(1==0, "Too many PRBS for mu=0\n");
+        factor = fp->samples_per_subframe / 30720.0;
         break;
       case 1: //30 kHz sc
         AssertFatal(N_TA_offset == 400, "scs_common 30kHz only for FR1\n");
-        if (N_RB <= 106) factor = 2.0; // 61.44 Ms/s
-        else if (N_RB <= 275) factor = 4.0; // 122.88 Ms/s
+        factor = fp->samples_per_subframe / 30720.0;
         break;
       case 2: //60 kHz scs
         AssertFatal(1==0, "scs_common should not be 60 kHz\n");
         break;
       case 3: //120 kHz scs
         AssertFatal(N_TA_offset == 431, "scs_common 120kHz only for FR2\n");
+        factor = fp->samples_per_subframe / 61440.0;
         break;
       case 4: //240 kHz scs
-        AssertFatal(1==0, "scs_common should not be 60 kHz\n");
-        if (N_RB <= 32) factor = 1.0; // 61.44 Ms/s
-        else if (N_RB <= 66) factor = 2.0; // 122.88 Ms/s
-        else AssertFatal(1==0, "N_RB %d is too big for curretn FR2 implementation\n", N_RB);
+        AssertFatal(N_TA_offset == 431, "scs_common 240kHz only for FR2\n");
+        factor = fp->samples_per_subframe / 61440.0;
         break;
-
-      if (N_RB == 100)
-        ue->N_TA_offset = 624;
-      else if (N_RB == 50)
-        ue->N_TA_offset = 624/2;
-      else if (N_RB == 25)
-        ue->N_TA_offset = 624/4;
+      default:
+        AssertFatal(1==0, "Invalid scs_common!\n");
     }
 
-    if (fp->threequarter_fs == 1)
-      factor = factor*.75;
-
     ue->N_TA_offset = (int)(N_TA_offset * factor);
 
-    LOG_I(PHY,"UE %d Setting N_TA_offset to %d samples (factor %f, UL Freq %lu, N_RB %d)\n", ue->Mod_id, ue->N_TA_offset, factor, fp->ul_CarrierFreq, N_RB);
+    LOG_I(PHY,"UE %d Setting N_TA_offset to %d samples (factor %f, UL Freq %lu, N_RB %d, mu %d)\n", ue->Mod_id, ue->N_TA_offset, factor, fp->ul_CarrierFreq, fp->N_RB_DL, fp->numerology_index);
   }
 }
 
diff --git a/openair1/PHY/INIT/nr_parms.c b/openair1/PHY/INIT/nr_parms.c
index e11fedf973..d0fc227492 100644
--- a/openair1/PHY/INIT/nr_parms.c
+++ b/openair1/PHY/INIT/nr_parms.c
@@ -75,9 +75,8 @@ int nr_get_ssb_start_symbol(NR_DL_FRAME_PARMS *fp)
   return symbol;
 }
 
-void set_scs_parameters (NR_DL_FRAME_PARMS *fp, int mu, uint16_t bw)
+void set_scs_parameters (NR_DL_FRAME_PARMS *fp, int mu, int N_RB_DL)
 {
-
   switch(mu) {
 
     case NR_MU_0: //15kHz scs
@@ -99,114 +98,17 @@ void set_scs_parameters (NR_DL_FRAME_PARMS *fp, int mu, uint16_t bw)
 	else
 	  AssertFatal(1==0,"NR Operating Band n%d not available for SS block SCS with mu=%d\n", fp->nr_band, mu);
       }
-
-      switch(bw){
-        case 5:
-        case 10:
-            fp->ofdm_symbol_size = 512;
-            fp->first_carrier_offset = 368; //512 - ( (24*12) / 2 )
-            fp->nb_prefix_samples0 = 44;
-            fp->nb_prefix_samples = 36;
-            break;
-        case 15:
-        case 20:
-        case 25:
-        case 30:
-        case 40: //40 MHz
-          if (fp->threequarter_fs) {
-            fp->ofdm_symbol_size = 1536;
-            fp->first_carrier_offset = 900; //1536 - ( (106*12) / 2 )
-            fp->nb_prefix_samples0 = 132;
-            fp->nb_prefix_samples = 108;
-          }
-          else {
-            fp->ofdm_symbol_size = 2048;
-            fp->first_carrier_offset = 1412; //2048 - ( (106*12) / 2 )
-            fp->nb_prefix_samples0 = 176;
-            fp->nb_prefix_samples = 144;
-          }
-          break;
-
-        case 50:
-        case 60:
-        case 70:
-
-        case 80: //80 MHz
-          if (fp->threequarter_fs) {
-            fp->ofdm_symbol_size = 3072;
-            fp->first_carrier_offset = 1770; //3072 - ( (217*12) / 2 )
-            fp->nb_prefix_samples0 = 264;
-            fp->nb_prefix_samples = 216;
-          }
-	  else {
-	    fp->ofdm_symbol_size = 4096;
-	    fp->first_carrier_offset = 2794; //4096 - ( (217*12) / 2 )
-	    fp->nb_prefix_samples0 = 352;
-	    fp->nb_prefix_samples = 288;
-	  }
-          break;
-
-        case 90:
-	  AssertFatal(fp->threequarter_fs==0,"3/4 sampling impossible for %d MHz band and MU %d\n",bw,mu); 
-	  fp->ofdm_symbol_size = 4096;
-	  fp->first_carrier_offset = 2626; //4096 - ( (245*12) / 2 )
-	  fp->nb_prefix_samples0 = 352;
-	  fp->nb_prefix_samples = 288;
-	  break;
-        case 100:
-	  AssertFatal(fp->threequarter_fs==0,"3/4 sampling impossible for %d MHz band and MU %d\n",bw,mu); 
-	  fp->ofdm_symbol_size = 4096;
-	  fp->first_carrier_offset = 2458; //4096 - ( (273*12) / 2 )
-	  fp->nb_prefix_samples0 = 352;
-	  fp->nb_prefix_samples = 288;
-	  break;
-      default:
-        AssertFatal(1==0,"%d MHz band undefined for mu %d, frame parms = %p\n", bw, mu, fp);
-      }
       break;
 
     case NR_MU_2: //60kHz scs
       fp->subcarrier_spacing = nr_subcarrier_spacing[NR_MU_2];
       fp->slots_per_subframe = nr_slots_per_subframe[NR_MU_2];
-
-      switch(bw){ //FR1 bands only
-        case 10:
-        case 15:
-        case 20:
-        case 25:
-        case 30:
-        case 40:
-        case 50:
-        case 60:
-        case 70:
-        case 80:
-        case 90:
-        case 100:
-      default:
-        AssertFatal(1==0,"%d MHz band undefined for mu %d, frame parms = %p\n", bw, mu, fp);
-      }
       break;
 
     case NR_MU_3:
       fp->subcarrier_spacing = nr_subcarrier_spacing[NR_MU_3];
       fp->slots_per_subframe = nr_slots_per_subframe[NR_MU_3];
       fp->ssb_type = nr_ssb_type_D;
-      switch(bw){
-        case 100:
-          fp->ofdm_symbol_size = 1024;
-          fp->first_carrier_offset = 628; //1024 - ( (66*12) / 2 )
-          fp->nb_prefix_samples0 = 136;
-          fp->nb_prefix_samples = 72;
-          break;
-        case 50:
-          fp->ofdm_symbol_size = 512;
-          fp->first_carrier_offset = 320; //512 - ( (32*12) / 2 )
-          fp->nb_prefix_samples0 = 68;
-          fp->nb_prefix_samples = 36;
-          break;
-      default:
-        AssertFatal(1==0,"%d MHz band undefined for mu %d, frame parms = %p\n", bw, mu, fp);
-      }
       break;
 
     case NR_MU_4:
@@ -215,9 +117,21 @@ void set_scs_parameters (NR_DL_FRAME_PARMS *fp, int mu, uint16_t bw)
       fp->ssb_type = nr_ssb_type_E;
       break;
 
-  default:
-    AssertFatal(1==0,"Invalid numerology index %d", mu);
+    default:
+      AssertFatal(1==0,"Invalid numerology index %d", mu);
   }
+
+  if(fp->threequarter_fs)
+    fp->ofdm_symbol_size = 3 * 128;
+  else
+    fp->ofdm_symbol_size = 4 * 128;
+
+  while(fp->ofdm_symbol_size < N_RB_DL * 12)
+    fp->ofdm_symbol_size <<= 1;
+
+  fp->first_carrier_offset = fp->ofdm_symbol_size - (N_RB_DL * 12 / 2);
+  fp->nb_prefix_samples    = fp->ofdm_symbol_size / 128 * 9;
+  fp->nb_prefix_samples0   = fp->ofdm_symbol_size / 128 * (9 + (1 << mu));
 }
 
 uint32_t get_samples_per_slot(int slot, NR_DL_FRAME_PARMS* fp)
@@ -286,7 +200,7 @@ int nr_init_frame_parms(nfapi_nr_config_request_scf_t* cfg,
   fp->half_frame_bit = 0;  // half frame bit initialized to 0 here
   fp->numerology_index = mu;
 
-  set_scs_parameters(fp, mu, cfg->carrier_config.dl_bandwidth.value);
+  set_scs_parameters(fp, mu, fp->N_RB_DL);
 
   fp->slots_per_frame = 10* fp->slots_per_subframe;
 
@@ -380,7 +294,7 @@ int nr_init_frame_parms_ue(NR_DL_FRAME_PARMS *fp,
 
   fp->Ncp = Ncp;
 
-  set_scs_parameters(fp,fp->numerology_index,config->carrier_config.dl_bandwidth);
+  set_scs_parameters(fp, fp->numerology_index, fp->N_RB_DL);
 
   fp->slots_per_frame = 10* fp->slots_per_subframe;
   fp->symbols_per_slot = ((Ncp == NORMAL)? 14 : 12); // to redefine for different slot formats