diff --git a/doc/SW-archi-graph.md b/doc/SW-archi-graph.md
index e8b0cdc0d7..8f8a6f6e5c 100644
--- a/doc/SW-archi-graph.md
+++ b/doc/SW-archi-graph.md
@@ -37,10 +37,10 @@ rx_func_implem[rx_func]
       handle_nr_ulsch --> gNB_dlsch_ulsch_scheduler
       subgraph NR_Schedule_response
          L1_tx_free3>L1_tx_free]
-         --> handle_dl_fapi
+         --> handle_nr_nfapi_xxx_pdu
          --> sendTxFilled((L1_tx_filled))
-         --> handle_ul_nfapi
-       
+         --> nr_fill_ul_xxx
+         --> nr_fill_prach
       end
       gNB_dlsch_ulsch_scheduler --> NR_Schedule_response
     end 
diff --git a/executables/nr-gnb.c b/executables/nr-gnb.c
index c630771599..0319f7f7a3 100644
--- a/executables/nr-gnb.c
+++ b/executables/nr-gnb.c
@@ -123,7 +123,6 @@ void tx_func(void *param) {
 }
 
 void rx_func(void *param) {
-
   processingData_L1_t *info = (processingData_L1_t *) param;
   PHY_VARS_gNB *gNB = info->gNB;
   int frame_rx = info->frame_rx;
@@ -303,7 +302,7 @@ void rx_func(void *param) {
 static void dump_L1_meas_stats(PHY_VARS_gNB *gNB, RU_t *ru, char *output) {
   int stroff = 0;
   stroff += print_meas_log(gNB->phy_proc_tx[0], "L1 Tx processing thread 0", NULL, NULL, output);
-  stroff += print_meas_log(gNB->phy_proc_tx[1], "L1 Tx processing thread 1", NULL, NULL, output+stroff);
+  //stroff += print_meas_log(gNB->phy_proc_tx[1], "L1 Tx processing thread 1", NULL, NULL, output+stroff);
   stroff += print_meas_log(&gNB->dlsch_encoding_stats, "DLSCH encoding", NULL, NULL, output+stroff);
   stroff += print_meas_log(&gNB->phy_proc_rx, "L1 Rx processing", NULL, NULL, output+stroff);
   stroff += print_meas_log(&gNB->ul_indication_stats, "UL Indication", NULL, NULL, output+stroff);
@@ -339,7 +338,7 @@ void *nrL1_stats_thread(void *param) {
   AssertFatal(fd!=NULL,"Cannot open nrL1_stats.log\n");
 
   reset_meas(gNB->phy_proc_tx[0]);
-  reset_meas(gNB->phy_proc_tx[1]);
+  //reset_meas(gNB->phy_proc_tx[1]);
   reset_meas(&gNB->dlsch_encoding_stats);
   reset_meas(&gNB->phy_proc_rx);
   reset_meas(&gNB->ul_indication_stats);
@@ -445,7 +444,7 @@ void init_gNB_Tpool(int inst) {
   initNotifiedFIFO(gNB->L1_tx_out);
   
   // we create 2 threads for L1 tx processing
-  for (int i=0; i < 2; i++) {
+  for (int i=0; i < 1; i++) {
     notifiedFIFO_elt_t *msgL1Tx = newNotifiedFIFO_elt(sizeof(processingData_L1tx_t),0,gNB->L1_tx_out,tx_func);
     processingData_L1tx_t *msgDataTx = (processingData_L1tx_t *)NotifiedFifoData(msgL1Tx);
     init_DLSCH_struct(gNB, msgDataTx);
diff --git a/openair1/SCHED_NR/phy_procedures_nr_gNB.c b/openair1/SCHED_NR/phy_procedures_nr_gNB.c
index 792667d510..3154233243 100644
--- a/openair1/SCHED_NR/phy_procedures_nr_gNB.c
+++ b/openair1/SCHED_NR/phy_procedures_nr_gNB.c
@@ -128,6 +128,7 @@ void phy_procedures_gNB_TX(processingData_L1tx_t *msgTx,
                            int frame,
                            int slot,
                            int do_meas) {
+
   int aa;
   PHY_VARS_gNB *gNB = msgTx->gNB;
   NR_DL_FRAME_PARMS *fp=&gNB->frame_parms;
@@ -204,6 +205,8 @@ void phy_procedures_gNB_TX(processingData_L1tx_t *msgTx,
   }
 
   VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_gNB_TX+offset,0);
+  //pthread_mutex_unlock(&mutextest);
+
 }
 
 
diff --git a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c
index ae52f8cc60..87c1dee1e5 100644
--- a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c
+++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c
@@ -272,6 +272,7 @@ bool is_xlsch_in_slot(uint64_t bitmap, sub_frame_t slot) {
 void gNB_dlsch_ulsch_scheduler(module_id_t module_idP,
                                frame_t frame,
                                sub_frame_t slot){
+  //pthread_mutex_lock(&mutextest);
 
   protocol_ctxt_t   ctxt={0};
   PROTOCOL_CTXT_SET_BY_MODULE_ID(&ctxt, module_idP, ENB_FLAG_YES, NOT_A_RNTI, frame, slot,module_idP);