diff --git a/cmake_targets/tools/build_helper b/cmake_targets/tools/build_helper
index 9b8363fc2b..9880b66685 100755
--- a/cmake_targets/tools/build_helper
+++ b/cmake_targets/tools/build_helper
@@ -113,6 +113,7 @@ check_supported_distribution() {
         "rhel7.6")     return 0 ;;
         "rhel7.7")     return 0 ;;
         "rhel7.8")     return 0 ;;
+        "rhel7.9")     return 0 ;;
         "rhel8.2")     return 0 ;;
         "rhel8.3")     return 0 ;;
         "rhel8.4")     return 0 ;;
diff --git a/executables/nr-ru.c b/executables/nr-ru.c
index f4a6510ad7..6d5b0ec8a3 100644
--- a/executables/nr-ru.c
+++ b/executables/nr-ru.c
@@ -903,6 +903,18 @@ void fill_rf_config(RU_t *ru, char *rf_config_file) {
         cfg->tx_bw = 80e6;
         cfg->rx_bw = 80e6;
       }
+      break;
+    case 133 :
+      if (fp->threequarter_fs) {
+	AssertFatal(1==0,"N_RB %d cannot use 3/4 sampling\n",N_RB);
+      }
+      else {
+        cfg->sample_rate=61.44e6;
+        cfg->samples_per_frame = 614400;
+        cfg->tx_bw = 50e6;
+        cfg->rx_bw = 50e6;
+      }
+
       break;
     case 106:
       if (fp->threequarter_fs) {
@@ -917,7 +929,7 @@ void fill_rf_config(RU_t *ru, char *rf_config_file) {
         cfg->tx_bw = 40e6;
         cfg->rx_bw = 40e6;
       }
-      break;
+     break;
     case 51:
       if (fp->threequarter_fs) {
         cfg->sample_rate=23.04e6;
diff --git a/openair1/PHY/NR_TRANSPORT/nr_dci.c b/openair1/PHY/NR_TRANSPORT/nr_dci.c
index cf38aaa4bf..b7de182ab7 100644
--- a/openair1/PHY/NR_TRANSPORT/nr_dci.c
+++ b/openair1/PHY/NR_TRANSPORT/nr_dci.c
@@ -94,7 +94,6 @@ void nr_generate_dci(PHY_VARS_gNB *gNB,
      * in time: by its first slot and its first symbol*/
     const nfapi_nr_dl_dci_pdu_t *dci_pdu = &pdcch_pdu_rel15->dci_pdu[d];
 
-    LOG_D(PHY,"DCI pdu %d, rnti %x, aggregation %d CCE %d Scrambling_Id %x ScramblingRNTI %x PayloadSizeBits %d\n",d,dci_pdu->RNTI,dci_pdu->AggregationLevel,dci_pdu->CceIndex,dci_pdu->ScramblingId,dci_pdu->ScramblingRNTI,dci_pdu->PayloadSizeBits);
     cset_start_symb = pdcch_pdu_rel15->StartSymbolIndex;
     cset_nsymb = pdcch_pdu_rel15->DurationSymbols;
     dci_idx = 0;
diff --git a/openair1/PHY/NR_TRANSPORT/nr_prach.c b/openair1/PHY/NR_TRANSPORT/nr_prach.c
index 88c95772e2..bf944e27aa 100644
--- a/openair1/PHY/NR_TRANSPORT/nr_prach.c
+++ b/openair1/PHY/NR_TRANSPORT/nr_prach.c
@@ -881,14 +881,14 @@ void rx_nr_prach(PHY_VARS_gNB *gNB,
 	         idft(IDFT_256,prachF,prach_ifft_tmp,1);
 	         log2_ifft_size = 8;
 	  // compute energy and accumulate over receive antennas and repetitions for BR
-	         for (i=0;i<256;i++)
-	           prach_ifft[i] += ((int32_t)prach_ifft_tmp[i<<1]*(int32_t)prach_ifft_tmp[(i<<1)] + (int32_t)prach_ifft_tmp[1+(i<<1)]*(int32_t)prach_ifft_tmp[1+(i<<1)])/nb_rx;
-	       }
+	  for (i=0;i<256;i++)
+	    prach_ifft[i] += ((int32_t)prach_ifft_tmp[i<<1]*(int32_t)prach_ifft_tmp[(i<<1)] + (int32_t)prach_ifft_tmp[1+(i<<1)]*(int32_t)prach_ifft_tmp[1+(i<<1)])/nb_rx;
+	}
 
-	       if (LOG_DUMPFLAG(PRACH)) {	
-	          if (aa==0) LOG_M("prach_rxF_comp0.m","prach_rxF_comp0",prachF,1024,1,1);
-            if (aa==1) LOG_M("prach_rxF_comp1.m","prach_rxF_comp1",prachF,1024,1,1);
-	       }
+	if (LOG_DUMPFLAG(PRACH)) {	
+	  if (aa==0) LOG_M("prach_rxF_comp0.m","prach_rxF_comp0",prachF,1024,1,1);
+    if (aa==1) LOG_M("prach_rxF_comp1.m","prach_rxF_comp1",prachF,1024,1,1);
+	}
       }// antennas_rx
     } // new dft
     
diff --git a/openair1/SCHED_NR/nr_prach_procedures.c b/openair1/SCHED_NR/nr_prach_procedures.c
index 533dbb8e1a..848b11dcde 100644
--- a/openair1/SCHED_NR/nr_prach_procedures.c
+++ b/openair1/SCHED_NR/nr_prach_procedures.c
@@ -114,23 +114,25 @@ 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_D(PHY,"[RAPROC] Frame %d, slot %d, occasion %d (prachStartSymbol %d) : Most likely preamble %d, energy %d dB delay %d (prach_energy counter %d)\n",
+      LOG_D(PHY,"[RAPROC] Frame %d, slot %d, occasion %d (prachStartSymbol %d) : Most likely preamble %d, energy %d.%d dB delay %d (prach_energy counter %d)\n",
 	    frame,slot,prach_oc,prachStartSymbol,
 	    max_preamble[0],
 	    max_preamble_energy[0]/10,
+            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+gNB->prach_thres)) {
 	
-	LOG_I(PHY,"[gNB %d][RAPROC] Frame %d, slot %d Initiating RA procedure with preamble %d, energy %d.%d dB, delay %d start symbol %u freq index %u\n",
+	LOG_I(PHY,"[gNB %d][RAPROC] Frame %d, slot %d Initiating RA procedure with preamble %d, energy %d.%d dB (I0 %d, thres %d), delay %d start symbol %u freq index %u\n",
 	      gNB->Mod_id,
 	      frame,
 	      slot,
 	      max_preamble[0],
 	      max_preamble_energy[0]/10,
 	      max_preamble_energy[0]%10,
+              gNB->measurements.prach_I0,gNB->prach_thres,
 	      max_preamble_delay[0],
 	      prachStartSymbol,
 	      prach_pdu->num_ra);
diff --git a/openair1/SCHED_NR/phy_procedures_nr_gNB.c b/openair1/SCHED_NR/phy_procedures_nr_gNB.c
index b472d7a9ba..1014be0e44 100644
--- a/openair1/SCHED_NR/phy_procedures_nr_gNB.c
+++ b/openair1/SCHED_NR/phy_procedures_nr_gNB.c
@@ -680,7 +680,7 @@ void phy_procedures_gNB_uespec_RX(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx)
                    dB_fixed_x10(gNB->pusch_vars[ULSCH_id]->ulsch_noise_power_tot),gNB->pusch_thres);
              nr_fill_indication(gNB,frame_rx, slot_rx, ULSCH_id, harq_pid, 1);
              gNB->pusch_vars[ULSCH_id]->DTX=1;
-             stats->DTX++;
+             if (stats) stats->DTX++;
              return;
           } else gNB->pusch_vars[ULSCH_id]->DTX=0;
 
diff --git a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c
index 5e92de3ab9..b6a924fb17 100644
--- a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c
+++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c
@@ -814,6 +814,21 @@ void nr_schedule_ue_spec(module_id_t module_id,
           current_harq_pid,
           harq->round,
           harq->ndi);
+    if ((get_softmodem_params()->phy_test == 1) && (frame&127) == 0) 
+      LOG_D(MAC,
+            "%4d.%2d RNTI %04x start %d RBs %d startSymbol %d nb_symbsol %d MCS %d TBS %d (%f Mbps) HARQ PID %d round %d NDI %d\n",
+            frame,
+            slot,
+            rnti,
+            sched_ctrl->rbStart,
+            sched_ctrl->rbSize,
+            startSymbolIndex,
+            nrOfSymbols,
+            sched_ctrl->mcs,
+            TBS,((double)TBS)*(1<<scc->uplinkConfigCommon->initialUplinkBWP->genericParameters.subcarrierSpacing))/1000,
+            current_harq_pid,
+            harq->round,
+            harq->ndi);
 
     NR_BWP_Downlink_t *bwp = sched_ctrl->active_bwp;
 
diff --git a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_phytest.c b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_phytest.c
index a7736e39d1..f01d963914 100644
--- a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_phytest.c
+++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_phytest.c
@@ -378,6 +378,8 @@ void nr_preprocessor_phytest(module_id_t module_id,
   /* mark the corresponding RBs as used */
   for (int rb = 0; rb < sched_ctrl->rbSize; rb++)
     vrb_map[rb + sched_ctrl->rbStart] = 1;
+
+  if ((frame&127) == 0) LOG_I(MAC,"phytest: %d.%d DL mcs %d, DL rbStart %d, DL rbSize %d\n", frame, slot, sched_ctrl->mcs, rbStart,rbSize);
 }
 
 uint32_t target_ul_mcs = 9;
diff --git a/openair2/LAYER2/nr_rlc/nr_rlc_oai_api.c b/openair2/LAYER2/nr_rlc/nr_rlc_oai_api.c
index e229e94e1d..9373b03668 100644
--- a/openair2/LAYER2/nr_rlc/nr_rlc_oai_api.c
+++ b/openair2/LAYER2/nr_rlc/nr_rlc_oai_api.c
@@ -47,6 +47,7 @@ extern RAN_CONTEXT_t RC;
 
 #include <stdint.h>
 
+#include <executables/softmodem-common.h>
 static nr_rlc_ue_manager_t *nr_rlc_ue_manager;
 
 /* TODO: handle time a bit more properly */