diff --git a/nfapi/oai_integration/nfapi_pnf.c b/nfapi/oai_integration/nfapi_pnf.c
index e741692214..684668f086 100644
--- a/nfapi/oai_integration/nfapi_pnf.c
+++ b/nfapi/oai_integration/nfapi_pnf.c
@@ -741,7 +741,7 @@ int pnf_phy_hi_dci0_req(nfapi_pnf_p7_config_t* pnf_p7, nfapi_hi_dci0_request_t*
   //phy_info* phy = (phy_info*)(pnf_p7->user_data);
 
   struct PHY_VARS_eNB_s *eNB = RC.eNB[0][0];
-  eNB_rxtx_proc_t *proc = &eNB->proc.proc_rxtx[0];
+  eNB_rxtx_proc_t *proc = &eNB->proc.L1_proc;
 
   for (int i=0; i<req->hi_dci0_request_body.number_of_dci + req->hi_dci0_request_body.number_of_hi; i++) {
 
@@ -798,7 +798,7 @@ int pnf_phy_dl_config_req(nfapi_pnf_p7_config_t* pnf_p7, nfapi_dl_config_request
   int sf = NFAPI_SFNSF2SF(req->sfn_sf);
 
   struct PHY_VARS_eNB_s *eNB = RC.eNB[0][0];
-  eNB_rxtx_proc_t *proc = &eNB->proc.proc_rxtx[0];
+  eNB_rxtx_proc_t *proc = &eNB->proc.L1_proc;
   nfapi_dl_config_request_pdu_t* dl_config_pdu_list = req->dl_config_request_body.dl_config_pdu_list;
   LTE_eNB_PDCCH *pdcch_vars = &eNB->pdcch_vars[sf&1];
 
@@ -869,7 +869,7 @@ int pnf_phy_dl_config_req(nfapi_pnf_p7_config_t* pnf_p7, nfapi_dl_config_request
 
         //NFAPI_TRACE(NFAPI_TRACE_INFO, "%s() DLSCH:pdu_index:%d handle_nfapi_dlsch_pdu(eNB, proc_rxtx, dlsch_pdu, transport_blocks:%d sdu:%p) eNB->pdcch_vars[proc->subframe_tx & 1].num_pdcch_symbols:%d\n", __FUNCTION__, rel8_pdu->pdu_index, rel8_pdu->transport_blocks, dlsch_sdu, eNB->pdcch_vars[proc->subframe_tx & 1].num_pdcch_symbols);
 
-        handle_nfapi_dlsch_pdu( eNB, sfn,sf, &eNB->proc.proc_rxtx[0], &dl_config_pdu_list[i], rel8_pdu->transport_blocks-1, dlsch_sdu);
+        handle_nfapi_dlsch_pdu( eNB, sfn,sf, &eNB->proc.L1_proc, &dl_config_pdu_list[i], rel8_pdu->transport_blocks-1, dlsch_sdu);
 
       } else {
 
@@ -945,7 +945,7 @@ int pnf_phy_ul_config_req(nfapi_pnf_p7_config_t* pnf_p7, nfapi_ul_config_request
   uint16_t curr_sf = NFAPI_SFNSF2SF(req->sfn_sf);
 
   struct PHY_VARS_eNB_s *eNB = RC.eNB[0][0];
-  eNB_rxtx_proc_t *proc = &eNB->proc.proc_rxtx[0];
+  eNB_rxtx_proc_t *proc = &eNB->proc.L1_proc;
   nfapi_ul_config_request_pdu_t* ul_config_pdu_list = req->ul_config_request_body.ul_config_pdu_list;
 
   for (int i=0;i<req->ul_config_request_body.number_of_pdus;i++) {
diff --git a/nfapi/oai_integration/nfapi_vnf.c b/nfapi/oai_integration/nfapi_vnf.c
index 8022bc53f4..e9d0ad35a3 100644
--- a/nfapi/oai_integration/nfapi_vnf.c
+++ b/nfapi/oai_integration/nfapi_vnf.c
@@ -345,7 +345,7 @@ int wake_eNB_rxtx(PHY_VARS_eNB *eNB, uint16_t sfn, uint16_t sf) {
 
   eNB_proc_t *proc=&eNB->proc;
 
-  eNB_rxtx_proc_t *proc_rxtx=&proc->proc_rxtx[sf&1];
+  eNB_rxtx_proc_t *L1_proc= (sf&1)? &proc->L1_proc : &proc->L1_proc_tx;
 
   LTE_DL_FRAME_PARMS *fp = &eNB->frame_parms;
 
@@ -359,8 +359,8 @@ int wake_eNB_rxtx(PHY_VARS_eNB *eNB, uint16_t sfn, uint16_t sf) {
 
   // wake up TX for subframe n+sf_ahead
   // lock the TX mutex and make sure the thread is ready
-  if (pthread_mutex_timedlock(&proc_rxtx->mutex_rxtx,&wait) != 0) {
-    LOG_E( PHY, "[eNB] ERROR pthread_mutex_lock for eNB RXTX thread %d (IC %d)\n", proc_rxtx->subframe_rx&1,proc_rxtx->instance_cnt_rxtx );
+  if (pthread_mutex_timedlock(&L1_proc->mutex,&wait) != 0) {
+    LOG_E( PHY, "[eNB] ERROR pthread_mutex_lock for eNB RXTX thread %d (IC %d)\n", L1_proc->subframe_rx&1,L1_proc->instance_cnt );
     exit_fun( "error locking mutex_rxtx" );
     return(-1);
   }
@@ -379,9 +379,9 @@ int wake_eNB_rxtx(PHY_VARS_eNB *eNB, uint16_t sfn, uint16_t sf) {
     if (old_sf == 0 && old_sfn % 100==0) LOG_W( PHY,"[eNB] sfn/sf:%d%d old_sfn/sf:%d%d proc[rx:%d%d]\n", sfn, sf, old_sfn, old_sf, proc->frame_rx, proc->subframe_rx);
   }
 
-  ++proc_rxtx->instance_cnt_rxtx;
+  ++L1_proc->instance_cnt;
 
-  //LOG_D( PHY,"[VNF-subframe_ind] sfn/sf:%d:%d proc[frame_rx:%d subframe_rx:%d] proc_rxtx->instance_cnt_rxtx:%d \n", sfn, sf, proc->frame_rx, proc->subframe_rx, proc_rxtx->instance_cnt_rxtx);
+  //LOG_D( PHY,"[VNF-subframe_ind] sfn/sf:%d:%d proc[frame_rx:%d subframe_rx:%d] L1_proc->instance_cnt_rxtx:%d \n", sfn, sf, proc->frame_rx, proc->subframe_rx, L1_proc->instance_cnt_rxtx);
 
   // We have just received and processed the common part of a subframe, say n.
   // TS_rx is the last received timestamp (start of 1st slot), TS_tx is the desired
@@ -389,23 +389,23 @@ int wake_eNB_rxtx(PHY_VARS_eNB *eNB, uint16_t sfn, uint16_t sf) {
   // The last (TS_rx mod samples_per_frame) was n*samples_per_tti,
   // we want to generate subframe (n+N), so TS_tx = TX_rx+N*samples_per_tti,
   // and proc->subframe_tx = proc->subframe_rx+sf_ahead
-  proc_rxtx->timestamp_tx = proc->timestamp_rx + (sf_ahead*fp->samples_per_tti);
-  proc_rxtx->frame_rx     = proc->frame_rx;
-  proc_rxtx->subframe_rx  = proc->subframe_rx;
-  proc_rxtx->frame_tx     = (proc_rxtx->subframe_rx > (9-sf_ahead)) ? (proc_rxtx->frame_rx+1)&1023 : proc_rxtx->frame_rx;
-  proc_rxtx->subframe_tx  = (proc_rxtx->subframe_rx + sf_ahead)%10;
+  L1_proc->timestamp_tx = proc->timestamp_rx + (sf_ahead*fp->samples_per_tti);
+  L1_proc->frame_rx     = proc->frame_rx;
+  L1_proc->subframe_rx  = proc->subframe_rx;
+  L1_proc->frame_tx     = (L1_proc->subframe_rx > (9-sf_ahead)) ? (L1_proc->frame_rx+1)&1023 : L1_proc->frame_rx;
+  L1_proc->subframe_tx  = (L1_proc->subframe_rx + sf_ahead)%10;
 
-  //LOG_D(PHY, "sfn/sf:%d%d proc[rx:%d%d] proc_rxtx[instance_cnt_rxtx:%d rx:%d%d] About to wake rxtx thread\n\n", sfn, sf, proc->frame_rx, proc->subframe_rx, proc_rxtx->instance_cnt_rxtx, proc_rxtx->frame_rx, proc_rxtx->subframe_rx);
+  //LOG_D(PHY, "sfn/sf:%d%d proc[rx:%d%d] L1_proc[instance_cnt_rxtx:%d rx:%d%d] About to wake rxtx thread\n\n", sfn, sf, proc->frame_rx, proc->subframe_rx, L1_proc->instance_cnt_rxtx, L1_proc->frame_rx, L1_proc->subframe_rx);
 
   // the thread can now be woken up
-  if (pthread_cond_signal(&proc_rxtx->cond_rxtx) != 0) {
+  if (pthread_cond_signal(&L1_proc->cond) != 0) {
     LOG_E( PHY, "[eNB] ERROR pthread_cond_signal for eNB RXn-TXnp4 thread\n");
     exit_fun( "ERROR pthread_cond_signal" );
     return(-1);
   }
 
   //LOG_D(PHY,"%s() About to attempt pthread_mutex_unlock\n", __FUNCTION__);
-  pthread_mutex_unlock( &proc_rxtx->mutex_rxtx );
+  pthread_mutex_unlock( &L1_proc->mutex );
   //LOG_D(PHY,"%s() UNLOCKED pthread_mutex_unlock\n", __FUNCTION__);
 
   return(0);
diff --git a/openair1/PHY/TOOLS/lte_phy_scope.c b/openair1/PHY/TOOLS/lte_phy_scope.c
index 9f2ec54744..000eb48615 100644
--- a/openair1/PHY/TOOLS/lte_phy_scope.c
+++ b/openair1/PHY/TOOLS/lte_phy_scope.c
@@ -178,7 +178,7 @@ void phy_scope_eNB(FD_lte_phy_scope_enb *form,
   float time[FRAME_LENGTH_COMPLEX_SAMPLES];
   float time2[2048];
   float freq[nsymb_ce*nb_antennas_rx*nb_antennas_tx];
-  int frame = phy_vars_enb->proc.proc_rxtx[0].frame_tx;
+  int frame = phy_vars_enb->proc.L1_proc.frame_tx;
   uint32_t total_dlsch_bitrate = phy_vars_enb->total_dlsch_bitrate;
   int coded_bits_per_codeword = 0;
   uint8_t harq_pid; // in TDD config 3 it is sf-2, i.e., can be 0,1,2
diff --git a/openair1/PHY/defs_eNB.h b/openair1/PHY/defs_eNB.h
index 00bcc7660b..5de64d65ee 100644
--- a/openair1/PHY/defs_eNB.h
+++ b/openair1/PHY/defs_eNB.h
@@ -730,19 +730,24 @@ typedef struct {
   int frame_rx;
   /// \brief Instance count for RXn-TXnp4 processing thread.
   /// \internal This variable is protected by \ref mutex_rxtx.
-  int instance_cnt_rxtx;
+  int instance_cnt;
   /// pthread structure for RXn-TXnp4 processing thread
-  pthread_t pthread_rxtx;
+  pthread_t pthread;
   /// pthread attributes for RXn-TXnp4 processing thread
-  pthread_attr_t attr_rxtx;
+  pthread_attr_t attr;
   /// condition variable for tx processing thread
-  pthread_cond_t cond_rxtx;
+  pthread_cond_t cond;
   /// mutex for RXn-TXnp4 processing thread
-  pthread_mutex_t mutex_rxtx;
+  pthread_mutex_t mutex;
   /// scheduling parameters for RXn-TXnp4 thread
   struct sched_param sched_param_rxtx;
-  /// pipeline ready state
-  int pipe_ready;
+
+  /// \internal This variable is protected by \ref mutex_RUs.
+  int instance_cnt_RUs;
+  /// condition variable for tx processing thread
+  pthread_cond_t cond_RUs;
+  /// mutex for RXn-TXnp4 processing thread
+  pthread_mutex_t mutex_RUs;
 } eNB_rxtx_proc_t;
 
 typedef struct {
@@ -910,7 +915,7 @@ typedef struct eNB_proc_t_s {
   /// parameters for turbo-encoding worker thread
   te_params tep[3];
   /// set of scheduling variables RXn-TXnp4 threads
-  eNB_rxtx_proc_t proc_rxtx[2];
+  eNB_rxtx_proc_t L1_proc,L1_proc_tx;
   /// stats thread pthread descriptor
   pthread_t process_stats_thread;
   /// for waking up tx procedure
diff --git a/openair1/SCHED/fapi_l1.c b/openair1/SCHED/fapi_l1.c
index 6d2855cab8..94f0723807 100644
--- a/openair1/SCHED/fapi_l1.c
+++ b/openair1/SCHED/fapi_l1.c
@@ -670,7 +670,7 @@ void schedule_response(Sched_Rsp_t *Sched_INFO)
 
   eNB         = RC.eNB[Mod_id][CC_id];
   fp          = &eNB->frame_parms;
-  proc        = &eNB->proc.proc_rxtx[0];
+  proc        = &eNB->proc.L1_proc;
 
   /* TODO: check that following line is correct - in the meantime it is disabled */
   //if ((fp->frame_type == TDD) && (subframe_select(fp,subframe)==SF_UL)) return;
diff --git a/targets/RT/USER/lte-enb.c b/targets/RT/USER/lte-enb.c
index 9555187059..834210f2b5 100644
--- a/targets/RT/USER/lte-enb.c
+++ b/targets/RT/USER/lte-enb.c
@@ -174,7 +174,6 @@ extern void add_subframe(uint16_t *frameP, uint16_t *subframeP, int offset);
 
 static inline int rxtx(PHY_VARS_eNB *eNB,eNB_rxtx_proc_t *proc, char *thread_name) {
   start_meas(&softmodem_stats_rxtx_sf);
-  // *******************************************************************
 LOG_I(PHY,"ENTERED rxtx\n");
   if (nfapi_mode == 1) {
 
@@ -233,14 +232,30 @@ LOG_I(PHY,"ENTERED rxtx\n");
   }
   VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_ENB_DLSCH_ULSCH_SCHEDULER , 1 );
 
-  if(get_thread_parallel_conf() == PARALLEL_RU_L1_TRX_SPLIT){
-    if(wait_on_condition(&proc[1].mutex_rxtx,&proc[1].cond_rxtx,&proc[1].pipe_ready,"wakeup_tx")<0) {
-      LOG_E(PHY,"Frame %d, subframe %d: TX1 not ready\n",proc[1].frame_rx,proc[1].subframe_rx);
+/*//#TODO
+  if(get_thread_parallel_conf() == PARALLEL_RU_L1_TRX_SPLIT)
+  {
+    if (pthread_mutex_lock(mutex) != 0) {
+      LOG_E(PHY, "[SCHED][eNB] ERROR locking mutex for eNB L1_thread_tx\n");
+      exit_fun("ERROR pthread_lock");
       return(-1);
     }
-    LOG_D(PHY,"Passed rxtx, proc1->cond_rxtx, frame_rx %d, subframe_rx %d, frame_tx %d, subframe_tx %d\n", proc->frame_rx,proc->subframe_rx,proc->frame_tx,proc->subframe_tx);
-    if (release_thread(&proc[1].mutex_rxtx,&proc[1].pipe_ready,"wakeup_tx")<0)  return(-1);
-  }
+    while(L1_proc_tx->instance_cnt == 0){
+      pthread_cond_wait(L1_proc_tx->cond,L1_proc_tx->mutex);
+    }
+    L1_proc_tx->instance_cnt = 0;
+    if (pthread_cond_signal(&L1_proc_tx->cond) != 0) {
+      LOG_E( PHY, "[eNB] ERROR pthread_cond_signal for eNB L1_thread_tx\n");
+      exit_fun( "ERROR pthread_cond_signal" );
+      return(-1);
+    }
+    if (pthread_mutex_unlock(mutex) != 0) {
+      LOG_E(PHY,"[SCHED][eNB] error unlocking mutex for %s\n",name);
+      exit_fun("ERROR pthread_unlock");
+      return(-1);
+    }
+  }*/
+  
 
   pthread_mutex_lock(&eNB->UL_INFO_mutex);
 
@@ -315,25 +330,22 @@ LOG_I(PHY,"ENTERED rxtx\n");
 }
 
 
-static void* tx_thread(void* param) {
-  PHY_VARS_eNB *eNB = (PHY_VARS_eNB *)param;
-  eNB_proc_t *eNB_proc  = &eNB->proc;
-  eNB_rxtx_proc_t *proc = &eNB_proc->proc_rxtx[1];
-  //PHY_VARS_eNB *eNB = RC.eNB[0][proc->CC_id];
-  LOG_I(PHY,"ENTERED tx_thread\n");
+static void* L1_thread_tx(void* param) {
+
+  eNB_proc_t *eNB_proc  = (eNB_proc_t*)param;
+  eNB_rxtx_proc_t *proc = &eNB_proc->L1_proc_tx;
+  PHY_VARS_eNB *eNB = RC.eNB[0][proc->CC_id];
+  
   char thread_name[100];
-  sprintf(thread_name,"TXnp4_%d",&eNB->proc.proc_rxtx[0] == proc ? 0 : 1);
+  sprintf(thread_name,"TXnp4_%d\n",&eNB->proc.L1_proc == proc ? 0 : 1);
   thread_top_init(thread_name,1,470000,500000,500000);
   
   //wait_sync("tx_thread");
   
   while (!oai_exit) {
 
-    LOG_D(PHY,"Entering tx_thread, proc1->cond_rxtx, proc1->instance_cnt_rxtx, frame_rx %d, subframe_rx %d, frame_tx %d, subframe_tx %d\n", proc->frame_rx,proc->subframe_rx,proc->frame_tx,proc->subframe_tx);  
-    if (wait_on_condition(&proc->mutex_rxtx,&proc->cond_rxtx,&proc->instance_cnt_rxtx,thread_name)<0) break;
-    LOG_D(PHY,"Passed tx_thread proc1->cond_rxtx, frame_rx %d, subframe_rx %d, frame_tx %d, subframe_tx %d\n", proc->frame_rx,proc->subframe_rx,proc->frame_tx,proc->subframe_tx);
-if (oai_exit) break;    
-
+    if (wait_on_condition(&proc->mutex,&proc->cond,&proc->instance_cnt,thread_name)<0) break;
+    if (oai_exit) break;    
     // *****************************************
     // TX processing for subframe n+4
     // run PHY TX procedures the one after the other for all CCs to avoid race conditions
@@ -345,18 +357,16 @@ if (oai_exit) break;
     VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_FRAME_NUMBER_RX1_ENB,proc->frame_rx);
     
     phy_procedures_eNB_TX(eNB, proc, 1);
-    if (release_thread(&proc->mutex_rxtx,&proc->instance_cnt_rxtx,thread_name)<0) break;
-	
-    pthread_mutex_lock( &proc->mutex_rxtx );
-    proc->pipe_ready++;
+
+    pthread_mutex_lock( &proc->mutex );
+    proc->instance_cnt = -1;
     // the thread can now be woken up
-    if (pthread_cond_signal(&proc->cond_rxtx) != 0) {
+    if (pthread_cond_signal(&proc->cond) != 0) {
       LOG_E( PHY, "[eNB] ERROR pthread_cond_signal for eNB TXnp4 thread\n");
       exit_fun( "ERROR pthread_cond_signal" );
     }
-    LOG_I(PHY,"Sent tx_thread, proc1->cond_rxtx to tx_thread, frame_rx %d, subframe_rx %d, frame_tx %d, subframe_tx %d\n", proc->frame_rx,proc->subframe_rx,proc->frame_tx,proc->subframe_tx);
-    pthread_mutex_unlock( &proc->mutex_rxtx );
-    wakeup_txfh(proc,eNB);
+    pthread_mutex_unlock( &proc->mutex );
+    wakeup_txfh(proc,eNB->proc.ru_proc);
   }
 
   return 0;
@@ -368,7 +378,7 @@ if (oai_exit) break;
  * \returns a pointer to an int. The storage is not on the heap and must not be freed.
  */
 
-static void* eNB_thread_rxtx( void* param ) {
+static void* L1_thread( void* param ) {
 
   static int eNB_thread_rxtx_status;
   //eNB_proc_t *eNB_proc  = (eNB_proc_t*)param;
@@ -379,9 +389,8 @@ LOG_I(PHY,"ENTERED eNB_thread_rxtx\n");
 	  proc = (eNB_rxtx_proc_t*)param;
   }
   else{
-    PHY_VARS_eNB *eNB = (PHY_VARS_eNB *)param;
-	  eNB_proc_t *eNB_proc  = &eNB->proc;
-	  proc = &eNB_proc->proc_rxtx[0];
+	  eNB_proc_t *eNB_proc  = (eNB_proc_t*)param;
+	  proc = &eNB_proc->L1_proc;
   }
 
 
@@ -397,7 +406,7 @@ LOG_I(PHY,"ENTERED eNB_thread_rxtx\n");
   eNB_thread_rxtx_status = 0;
 
 
-  sprintf(thread_name,"RXn_TXnp4_%d",&eNB->proc.proc_rxtx[0] == proc ? 0 : 1);
+  sprintf(thread_name,"RXn_TXnp4_%d\n",&eNB->proc.L1_proc == proc ? 0 : 1);
   thread_top_init(thread_name,1,470000,500000,500000);
   pthread_setname_np( pthread_self(),"rxtx processing");
   LOG_I(PHY,"thread rxtx created id=%ld\n", syscall(__NR_gettid));
@@ -409,9 +418,9 @@ LOG_I(PHY,"ENTERED eNB_thread_rxtx\n");
     
     VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_PROC_RXTX0+(proc->subframe_rx&1), 0 );
     T(T_ENB_MASTER_TICK, T_INT(0), T_INT(proc->frame_rx), T_INT(proc->subframe_rx));
-    LOG_D(PHY,"Entering eNB_thread_rxtx, proc0->cond_rxtx, instance_cnt_rxtx, frame_rx %d, subframe_rx %d, frame_tx %d, subframe_tx %d\n", proc->frame_rx,proc->subframe_rx,proc->frame_tx,proc->subframe_tx);
-    if (wait_on_condition(&proc->mutex_rxtx,&proc->cond_rxtx,&proc->instance_cnt_rxtx,thread_name)<0) break;
-    LOG_D(PHY,"Passed eNB_thread_rxtx proc0->cond_rxtx , frame_rx %d, subframe_rx %d, frame_tx %d, subframe_tx %d\n", proc->frame_rx,proc->subframe_rx,proc->frame_tx,proc->subframe_tx);
+
+    if (wait_on_condition(&proc->mutex,&proc->cond,&proc->instance_cnt,thread_name)<0) break;
+
     VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_CPUID_ENB_THREAD_RXTX,sched_getcpu());
     VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_PROC_RXTX0+(proc->subframe_rx&1), 1 );
    
@@ -430,16 +439,7 @@ LOG_I(PHY,"ENTERED eNB_thread_rxtx\n");
       if (rxtx(eNB,proc,thread_name) < 0) break;
     }
 
-    if (release_thread(&proc->mutex_rxtx,&proc->instance_cnt_rxtx,thread_name)<0) break;
-    pthread_mutex_lock( &proc->mutex_rxtx );
-    proc->pipe_ready++;
-    // the thread can now be woken up
-    if (pthread_cond_signal(&proc->cond_rxtx) != 0) {
-      LOG_E( PHY, "[eNB] ERROR pthread_cond_signal for eNB TXnp4 thread\n");
-      exit_fun( "ERROR pthread_cond_signal" );
-    }
-    LOG_I(PHY,"Sent eNB_thread_rxtx proc0-> cond_rxtx to tx_thread, frame_rx %d, subframe_rx %d, frame_tx %d, subframe_tx %d\n", proc->frame_rx,proc->subframe_rx,proc->frame_tx,proc->subframe_tx);
-    pthread_mutex_unlock( &proc->mutex_rxtx );
+    if (release_thread(&proc->mutex,&proc->instance_cnt,thread_name)<0) break;
     if (nfapi_mode!=2){
     	if(get_thread_parallel_conf() == PARALLEL_RU_L1_TRX_SPLIT)      wakeup_tx(eNB,eNB->proc.ru_proc);
     	else if(get_thread_parallel_conf() == PARALLEL_RU_L1_SPLIT)
@@ -462,7 +462,7 @@ LOG_I(PHY,"ENTERED eNB_thread_rxtx\n");
 void eNB_top(PHY_VARS_eNB *eNB, int frame_rx, int subframe_rx, char *string,RU_t *ru)
 {
   eNB_proc_t *proc           = &eNB->proc;
-  eNB_rxtx_proc_t *proc_rxtx = &proc->proc_rxtx[0];
+  eNB_rxtx_proc_t *L1_proc = &proc->L1_proc;
   LTE_DL_FRAME_PARMS *fp = &ru->frame_parms;
   RU_proc_t *ru_proc=&ru->proc;
 
@@ -472,18 +472,16 @@ void eNB_top(PHY_VARS_eNB *eNB, int frame_rx, int subframe_rx, char *string,RU_t
   if (!oai_exit) {
     T(T_ENB_MASTER_TICK, T_INT(0), T_INT(proc->frame_rx), T_INT(proc->subframe_rx));
 
-    proc_rxtx->timestamp_tx = ru_proc->timestamp_rx + (sf_ahead*fp->samples_per_tti);
-    proc_rxtx->frame_rx     = ru_proc->frame_rx;
-    proc_rxtx->subframe_rx  = ru_proc->subframe_rx;
-    proc_rxtx->frame_tx     = (proc_rxtx->subframe_rx > (9-sf_ahead)) ? (proc_rxtx->frame_rx+1)&1023 : proc_rxtx->frame_rx;
-    proc_rxtx->subframe_tx  = (proc_rxtx->subframe_rx + sf_ahead)%10;
+    L1_proc->timestamp_tx = ru_proc->timestamp_rx + (sf_ahead*fp->samples_per_tti);
+    L1_proc->frame_rx     = ru_proc->frame_rx;
+    L1_proc->subframe_rx  = ru_proc->subframe_rx;
+    L1_proc->frame_tx     = (L1_proc->subframe_rx > (9-sf_ahead)) ? (L1_proc->frame_rx+1)&1023 : L1_proc->frame_rx;
+    L1_proc->subframe_tx  = (L1_proc->subframe_rx + sf_ahead)%10;
 
-    LOG_D(PHY,"RXTX for TX: %d.%d, RX: %d.%d\n",proc_rxtx->frame_tx,proc_rxtx->subframe_tx,proc_rxtx->frame_rx,proc_rxtx->subframe_rx);
-
-    if (rxtx(eNB,proc_rxtx,string) < 0) LOG_E(PHY,"eNB %d CC_id %d failed during execution\n",eNB->Mod_id,eNB->CC_id);
-    ru_proc->timestamp_tx = proc_rxtx->timestamp_tx;
-    ru_proc->subframe_tx  = proc_rxtx->subframe_tx;
-    ru_proc->frame_tx     = proc_rxtx->frame_tx;
+    if (rxtx(eNB,L1_proc,string) < 0) LOG_E(PHY,"eNB %d CC_id %d failed during execution\n",eNB->Mod_id,eNB->CC_id);
+    ru_proc->timestamp_tx = L1_proc->timestamp_tx;
+    ru_proc->subframe_tx  = L1_proc->subframe_tx;
+    ru_proc->frame_tx     = L1_proc->frame_tx;
   }
 }
 
@@ -493,7 +491,7 @@ int wakeup_txfh(eNB_rxtx_proc_t *proc,PHY_VARS_eNB *eNB) {
   wait.tv_sec=0;
   wait.tv_nsec=5000000L;
   LTE_DL_FRAME_PARMS *fp;
-LOG_I(PHY,"ENTERED wakeup_txfh\n");
+
   for(int ru_id=0; ru_id<eNB->num_RU; ru_id++){
     ru_proc = &eNB->RU_list[ru_id]->proc;
     fp = &eNB->RU_list[ru_id]->frame_parms;
@@ -501,15 +499,13 @@ LOG_I(PHY,"ENTERED wakeup_txfh\n");
     // skip the RUs that are not synced
     if (eNB->RU_list[ru_id]->state == RU_SYNC) { LOG_D(PHY,"wakeup_txfh: eNB %d : Skipping ru %d\n",eNB->Mod_id,ru_id); continue; }
 
-    if(ru_proc == NULL)
-		return(0);
-    LOG_D(PHY,"Entering wakeup_txfh, ru_proc->cond_eNBs, ru_proc->ru_tx_ready, frame_rx %d, subframe_rx %d, frame_tx %d, subframe_tx %d\n", proc->frame_rx,proc->subframe_rx,ru_proc->frame_tx,ru_proc->subframe_tx);
-    if(wait_on_condition(&ru_proc->mutex_eNBs,&ru_proc->cond_eNBs,&ru_proc->ru_tx_ready,"wakeup_txfh")<0) {
-      LOG_E(PHY,"Frame %d, subframe %d: TX FH not ready\n", ru_proc->frame_tx, ru_proc->subframe_tx);
-      return(-1);
+    if(ru_proc == NULL) {return(0);}
+    printf("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~inside wakeup_txfh %d.%d IC_RU = %d\n", proc->frame_tx, proc->subframe_tx, proc->instance_cnt_RUs);
+    if(wait_on_condition(&proc->mutex_RUs,&proc->cond_RUs,&proc->instance_cnt_RUs,"wakeup_txfh")<0) {
+    	LOG_E(PHY,"Frame %d, subframe %d: TX FH not ready\n", ru_proc->frame_tx, ru_proc->subframe_tx);
+    	return(-1);
     }
-    LOG_D(PHY,"Passed wakeup_txfh ru_proc->cond_eNBs, frame_rx %d, subframe_rx %d, frame_tx %d, subframe_tx %d\n", ru_proc->frame_rx,ru_proc->subframe_rx,ru_proc->frame_tx,ru_proc->subframe_tx);
-    if (release_thread(&ru_proc->mutex_eNBs,&ru_proc->ru_tx_ready,"wakeup_txfh")<0) return(-1);
+    if (release_thread(&proc->mutex_RUs,&proc->instance_cnt_RUs,"wakeup_txfh")<0) return(-1);
     if (ru_proc->instance_cnt_eNBs == 0) {
       LOG_E(PHY,"Frame %d, subframe %d: TX FH thread busy, dropping Frame %d, subframe %d\n", ru_proc->frame_tx, ru_proc->subframe_tx, proc->frame_rx, proc->subframe_rx);
       return(-1);
@@ -520,7 +516,7 @@ LOG_I(PHY,"ENTERED wakeup_txfh\n");
       return(-1);
     }
       LOG_D(PHY,"waking up for frame %d subframe %d for RU TX \n", proc->frame_tx, proc->subframe_tx);
-      ++ru_proc->instance_cnt_eNBs;
+      ru_proc->instance_cnt_eNBs = 0;
       ru_proc->timestamp_tx = proc->timestamp_tx;
       ru_proc->subframe_tx  = proc->subframe_tx;
       ru_proc->frame_tx     = proc->frame_tx;
@@ -531,7 +527,6 @@ LOG_I(PHY,"ENTERED wakeup_txfh\n");
       exit_fun( "ERROR pthread_cond_signal" );
       return(-1);
     }
-    LOG_I(PHY,"Sent wakeup_txfh ru_proc->cond_eNBs to tx_thread\n, frame_rx %d, subframe_rx %d, frame_tx %d, subframe_tx %d\n", proc->frame_rx,proc->subframe_rx,ru_proc->frame_tx,ru_proc->subframe_tx);
     pthread_mutex_unlock( &ru_proc->mutex_eNBs );
   }
   return(0);
@@ -540,58 +535,54 @@ LOG_I(PHY,"ENTERED wakeup_txfh\n");
 int wakeup_tx(PHY_VARS_eNB *eNB,RU_proc_t *ru_proc) {
   eNB_proc_t *proc=&eNB->proc;
 
-  eNB_rxtx_proc_t *proc_rxtx1=&proc->proc_rxtx[1];/**proc_rxtx=&proc->proc_rxtx[proc->frame_rx&1];*/
-  eNB_rxtx_proc_t *proc_rxtx0=&proc->proc_rxtx[0];
  /* LTE_DL_FRAME_PARMS *fp;
   fp = &eNB->frame_parms;
 if ((fp->frame_type == TDD) && (subframe_select(fp,proc_rxtx0->subframe_tx)==SF_UL)) return;
   */
+  eNB_rxtx_proc_t *L1_proc_tx = &proc->L1_proc_tx;
+  eNB_rxtx_proc_t *L1_proc    = &proc->L1_proc;
+
+  
   struct timespec wait;
   wait.tv_sec=0;
   wait.tv_nsec=5000000L;
   LOG_I(PHY,"ENTERED wakeup_tx\n");
   
-  
-  if (proc_rxtx1->instance_cnt_rxtx == 0) {
-    LOG_E(PHY,"Frame %d, subframe %d: TX1 thread busy, dropping\n",proc_rxtx1->frame_rx,proc_rxtx1->subframe_rx);
+  if (pthread_mutex_timedlock(&L1_proc_tx->mutex,&wait) != 0) {
+    LOG_E(PHY, "[SCHED][eNB] ERROR locking mutex for eNB L1_thread_tx\n");
+    exit_fun("ERROR pthread_lock");
     return(-1);
   }
-  
-  if (pthread_mutex_timedlock(&proc_rxtx1->mutex_rxtx,&wait) != 0) {
-    LOG_E( PHY, "[eNB] ERROR pthread_mutex_lock for eNB TX1 thread %d (IC %d)\n", proc_rxtx1->subframe_rx&1,proc_rxtx1->instance_cnt_rxtx );
-    exit_fun( "error locking mutex_tx" );
-    return(-1);
+  while(L1_proc_tx->instance_cnt == 0){
+    pthread_cond_wait(&L1_proc_tx->cond,&L1_proc_tx->mutex);
   }
 
-  ++proc_rxtx1->instance_cnt_rxtx;
+  L1_proc_tx->instance_cnt = 0;
 
   
-  proc_rxtx1->subframe_rx   = proc_rxtx0->subframe_rx;
-  proc_rxtx1->frame_rx      = proc_rxtx0->frame_rx;
-  proc_rxtx1->subframe_tx   = proc_rxtx0->subframe_tx;
-  proc_rxtx1->frame_tx      = proc_rxtx0->frame_tx;
-  proc_rxtx1->timestamp_tx  = proc_rxtx0->timestamp_tx;
+  L1_proc_tx->subframe_rx   = L1_proc->subframe_rx;
+  L1_proc_tx->frame_rx      = L1_proc->frame_rx;
+  L1_proc_tx->subframe_tx   = L1_proc->subframe_tx;
+  L1_proc_tx->frame_tx      = L1_proc->frame_tx;
+  L1_proc_tx->timestamp_tx  = L1_proc->timestamp_tx;
   
   // the thread can now be woken up
-  if (pthread_cond_signal(&proc_rxtx1->cond_rxtx) != 0) {
+  if (pthread_cond_signal(&L1_proc_tx->cond) != 0) {
     LOG_E( PHY, "[eNB] ERROR pthread_cond_signal for eNB TXnp4 thread\n");
     exit_fun( "ERROR pthread_cond_signal" );
     return(-1);
   }
-  LOG_I(PHY,"Sent wakeup_tx proc1->cond_rxtx to tx_thread, frame_rx %d, subframe_rx %d, frame_tx %d, subframe_tx %d\n", proc_rxtx1->frame_rx,proc_rxtx1->subframe_rx,proc_rxtx1->frame_tx,proc_rxtx1->subframe_tx);
-  pthread_mutex_unlock( &proc_rxtx1->mutex_rxtx );
+  
+  pthread_mutex_unlock( &L1_proc_tx->mutex);
 
   return(0);
 }
 
 int wakeup_rxtx(PHY_VARS_eNB *eNB,RU_t *ru) {
+
   eNB_proc_t *proc=&eNB->proc;
   RU_proc_t *ru_proc=&ru->proc;
-
-  eNB_rxtx_proc_t *proc_rxtx0=&proc->proc_rxtx[0];
-  //eNB_rxtx_proc_t *proc_rxtx1=&proc->proc_rxtx[1];
-  LOG_I(PHY,"ENTERED wakeup_rxtx\n");
-
+  eNB_rxtx_proc_t *L1_proc=&proc->L1_proc;
   LTE_DL_FRAME_PARMS *fp = &eNB->frame_parms;
 
   int i;
@@ -600,28 +591,20 @@ int wakeup_rxtx(PHY_VARS_eNB *eNB,RU_t *ru) {
   wait.tv_sec=0;
   wait.tv_nsec=5000000L;
 
-  LOG_D(PHY,"Entering wakeup_rxtx, cond_rxtx, proc0->pipe_ready, frame %d, subframe %d\n", proc_rxtx0->frame_rx,proc_rxtx0->subframe_rx);
-  if(wait_on_condition(&proc_rxtx0->mutex_rxtx,&proc_rxtx0->cond_rxtx,&proc_rxtx0->pipe_ready,"wakeup_rxtx")<0) {
-    LOG_E(PHY,"Frame %d, subframe %d: RXTX0 not ready\n",proc_rxtx0->frame_rx,proc_rxtx0->subframe_rx);
-    return(-1);
-  }
-  LOG_D(PHY,"Passed wakeup_rxtx proc0->cond_rxtx, frame %d, subframe %d\n", proc_rxtx0->frame_rx,proc_rxtx0->subframe_rx);
-  if (release_thread(&proc_rxtx0->mutex_rxtx,&proc_rxtx0->pipe_ready,"wakeup_rxtx")<0) return(-1);
-  
-  if (proc_rxtx0->instance_cnt_rxtx == 0) {
-    LOG_E(PHY,"Frame %d, subframe %d: RXTX0 thread busy, dropping\n",proc_rxtx0->frame_rx,proc_rxtx0->subframe_rx);
+  if (L1_proc->instance_cnt == 0) {
+    LOG_E(PHY,"Frame %d, subframe %d: RXTX0 thread busy, dropping\n",L1_proc->frame_rx,L1_proc->subframe_rx);
     return(-1);
   }
 
   // wake up TX for subframe n+sf_ahead
   // lock the TX mutex and make sure the thread is ready
-  if (pthread_mutex_timedlock(&proc_rxtx0->mutex_rxtx,&wait) != 0) {
-    LOG_E( PHY, "[eNB] ERROR pthread_mutex_lock for eNB RXTX thread %d (IC %d)\n", proc_rxtx0->subframe_rx&1,proc_rxtx0->instance_cnt_rxtx );
+  if (pthread_mutex_timedlock(&L1_proc->mutex,&wait) != 0) {
+    LOG_E( PHY, "[eNB] ERROR pthread_mutex_lock for eNB RXTX thread %d (IC %d)\n", L1_proc->subframe_rx&1,L1_proc->instance_cnt );
     exit_fun( "error locking mutex_rxtx" );
     return(-1);
   }
   
-  ++proc_rxtx0->instance_cnt_rxtx;
+  ++L1_proc->instance_cnt;
   
   // We have just received and processed the common part of a subframe, say n. 
   // TS_rx is the last received timestamp (start of 1st slot), TS_tx is the desired 
@@ -629,20 +612,20 @@ int wakeup_rxtx(PHY_VARS_eNB *eNB,RU_t *ru) {
   // The last (TS_rx mod samples_per_frame) was n*samples_per_tti, 
   // we want to generate subframe (n+sf_ahead), so TS_tx = TX_rx+sf_ahead*samples_per_tti,
   // and proc->subframe_tx = proc->subframe_rx+sf_ahead
-  proc_rxtx0->timestamp_tx = ru_proc->timestamp_rx + (sf_ahead*fp->samples_per_tti);
-  proc_rxtx0->frame_rx     = ru_proc->frame_rx;
-  proc_rxtx0->subframe_rx  = ru_proc->subframe_rx;
-  proc_rxtx0->frame_tx     = (proc_rxtx0->subframe_rx > (9-sf_ahead)) ? (proc_rxtx0->frame_rx+1)&1023 : proc_rxtx0->frame_rx;
-  proc_rxtx0->subframe_tx  = (proc_rxtx0->subframe_rx + sf_ahead)%10;
+  L1_proc->timestamp_tx = ru_proc->timestamp_rx + (sf_ahead*fp->samples_per_tti);
+  L1_proc->frame_rx     = ru_proc->frame_rx;
+  L1_proc->subframe_rx  = ru_proc->subframe_rx;
+  L1_proc->frame_tx     = (L1_proc->subframe_rx > (9-sf_ahead)) ? (L1_proc->frame_rx+1)&1023 : L1_proc->frame_rx;
+  L1_proc->subframe_tx  = (L1_proc->subframe_rx + sf_ahead)%10;
 
   // the thread can now be woken up
-  if (pthread_cond_signal(&proc_rxtx0->cond_rxtx) != 0) {
+  if (pthread_cond_signal(&L1_proc->cond) != 0) {
     LOG_E( PHY, "[eNB] ERROR pthread_cond_signal for eNB RXn-TXnp4 thread\n");
     exit_fun( "ERROR pthread_cond_signal" );
     return(-1);
   }
-  LOG_I(PHY,"Sent wakeup_rxtx proc0->cond_rxtx to eNB_thread_rxtx, frame_rx %d, subframe_rx %d, frame_tx %d, subframe_tx %d\n", proc_rxtx0->frame_rx,proc_rxtx0->subframe_rx,proc_rxtx0->frame_tx,proc_rxtx0->subframe_tx);
-  pthread_mutex_unlock( &proc_rxtx0->mutex_rxtx );
+  
+  pthread_mutex_unlock( &L1_proc->mutex);
 
   return(0);
 }
@@ -898,7 +881,7 @@ void init_eNB_proc(int inst) {
   int CC_id;
   PHY_VARS_eNB *eNB;
   eNB_proc_t *proc;
-  eNB_rxtx_proc_t *proc_rxtx;
+  eNB_rxtx_proc_t *L1_proc, *L1_proc_tx;
   pthread_attr_t *attr0=NULL,*attr1=NULL,*attr_prach=NULL;
 #if (RRC_VERSION >= MAKE_VERSION(14, 0, 0))
   pthread_attr_t *attr_prach_br=NULL;
@@ -913,26 +896,32 @@ void init_eNB_proc(int inst) {
 #endif
     proc = &eNB->proc;
 
-    proc_rxtx                      = proc->proc_rxtx;
-    proc_rxtx[0].instance_cnt_rxtx = -1;
-    proc_rxtx[1].instance_cnt_rxtx = -1;
-    proc_rxtx[0].pipe_ready        = 0;
-    proc_rxtx[1].pipe_ready        = 0;
+    L1_proc                        = &proc->L1_proc;
+    L1_proc_tx                     = &proc->L1_proc_tx;
+    L1_proc->instance_cnt          = -1;
+    L1_proc_tx->instance_cnt       = -1;
+    L1_proc->instance_cnt_RUs      = 0;
+    L1_proc_tx->instance_cnt_RUs   = 0;
     proc->instance_cnt_prach       = -1;
     proc->instance_cnt_asynch_rxtx = -1;
     proc->instance_cnt_synch       = -1;
     proc->CC_id                    = CC_id;    
 
-    proc->first_rx=1;
-    proc->first_tx=1;
-    for (int i=0;i<10;i++) proc->RU_mask[i]=0;
-    proc->RU_mask_prach=0;
+    proc->first_rx                 =1;
+    proc->first_tx                 =1;
+    proc->RU_mask                  =0;
+    //for (int i=0;i<10;i++) proc->RU_mask[i]=0;   
+    proc->RU_mask_prach            =0;
 
     pthread_mutex_init( &eNB->UL_INFO_mutex, NULL);
-    pthread_mutex_init( &proc_rxtx[0].mutex_rxtx, NULL);
-    pthread_mutex_init( &proc_rxtx[1].mutex_rxtx, NULL);
-    pthread_cond_init( &proc_rxtx[0].cond_rxtx, NULL);
-    pthread_cond_init( &proc_rxtx[1].cond_rxtx, NULL);
+    pthread_mutex_init( &L1_proc->mutex, NULL);
+    pthread_mutex_init( &L1_proc_tx->mutex, NULL);
+    pthread_cond_init( &L1_proc->cond, NULL);
+    pthread_cond_init( &L1_proc_tx->cond, NULL);
+    pthread_mutex_init( &L1_proc->mutex_RUs, NULL);
+    pthread_mutex_init( &L1_proc_tx->mutex_RUs, NULL);
+    pthread_cond_init( &L1_proc->cond_RUs, NULL);
+    pthread_cond_init( &L1_proc_tx->cond_RUs, NULL);
 
     pthread_mutex_init( &proc->mutex_prach, NULL);
     pthread_mutex_init( &proc->mutex_asynch_rxtx, NULL);
@@ -944,8 +933,8 @@ void init_eNB_proc(int inst) {
 
     pthread_attr_init( &proc->attr_prach);
     pthread_attr_init( &proc->attr_asynch_rxtx);
-    pthread_attr_init( &proc_rxtx[0].attr_rxtx);
-    pthread_attr_init( &proc_rxtx[1].attr_rxtx);
+    pthread_attr_init( &L1_proc->attr);
+    pthread_attr_init( &L1_proc_tx->attr);
 #if (RRC_VERSION >= MAKE_VERSION(14, 0, 0))
     proc->instance_cnt_prach_br    = -1;
     proc->RU_mask_prach_br=0;
@@ -955,8 +944,8 @@ void init_eNB_proc(int inst) {
     pthread_attr_init( &proc->attr_prach_br);
 #endif
 #ifndef DEADLINE_SCHEDULER
-    attr0       = &proc_rxtx[0].attr_rxtx;
-    attr1       = &proc_rxtx[1].attr_rxtx;
+    attr0       = &L1_proc->attr;
+    attr1       = &L1_proc_tx->attr;
     attr_prach  = &proc->attr_prach;
 #if (RRC_VERSION >= MAKE_VERSION(14, 0, 0))
     attr_prach_br  = &proc->attr_prach_br;
@@ -978,20 +967,13 @@ void init_eNB_proc(int inst) {
 	  proc_rxtx[0].instance_cnt_rxtx,proc_rxtx[1].instance_cnt_rxtx);
 
     if ((get_thread_parallel_conf() == PARALLEL_RU_L1_SPLIT || get_thread_parallel_conf() == PARALLEL_RU_L1_TRX_SPLIT) && nfapi_mode!=2) {
-      pthread_create( &proc_rxtx[0].pthread_rxtx, attr0, eNB_thread_rxtx, eNB );
-      pthread_create( &proc_rxtx[1].pthread_rxtx, attr1, tx_thread, eNB);
+      pthread_create( &L1_proc->pthread, attr0, L1_thread, proc ); //!!!!!!!!!!!!!!!!!!!!! for us it is eNB !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
+      pthread_create( &L1_proc_tx->pthread, attr1, L1_thread_tx, proc);
     }
     pthread_create( &proc->pthread_prach, attr_prach, eNB_thread_prach, eNB );
 #if (RRC_VERSION >= MAKE_VERSION(14, 0, 0))
     pthread_create( &proc->pthread_prach_br, attr_prach_br, eNB_thread_prach_br, eNB );
 #endif
-    /*char name[16];
-    if (eNB->single_thread_flag==0) {
-      snprintf( name, sizeof(name), "RXTX0 %d", i );
-      pthread_setname_np( proc_rxtx[0].pthread_rxtx, name );
-      snprintf( name, sizeof(name), "RXTX1 %d", i );
-      pthread_setname_np( proc_rxtx[1].pthread_rxtx, name );
-    }*/
 
     AssertFatal(proc->instance_cnt_prach == -1,"instance_cnt_prach = %d\n",proc->instance_cnt_prach);
 	
@@ -1036,27 +1018,30 @@ void kill_eNB_proc(int inst) {
   int *status;
   PHY_VARS_eNB *eNB;
   eNB_proc_t *proc;
-  eNB_rxtx_proc_t *proc_rxtx;
-  int i;
+  eNB_rxtx_proc_t *L1_proc, *L1_proc_tx;
+
   for (int CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
     eNB=RC.eNB[inst][CC_id];
-    
-    proc = &eNB->proc;
-    proc_rxtx = &proc->proc_rxtx[0];
-    
+    proc        = &eNB->proc;
+    L1_proc     = &proc->L1_proc;
+    L1_proc_tx  = &proc->L1_proc_tx;
 
     if(get_thread_worker_conf() == WORKER_ENABLE) {
       kill_td_thread(eNB);
       kill_te_thread(eNB);
     }
     LOG_I(PHY, "Killing TX CC_id %d inst %d\n", CC_id, inst );
-    for (i=0; i<2; i++) {
-      pthread_mutex_lock(&proc_rxtx[i].mutex_rxtx);
-      proc_rxtx[i].instance_cnt_rxtx = 0;
-      proc_rxtx[i].pipe_ready = 0;
-      pthread_cond_signal(&proc_rxtx[i].cond_rxtx);
-      pthread_mutex_unlock(&proc_rxtx[i].mutex_rxtx);
-    }
+
+    pthread_mutex_lock(&L1_proc->mutex);
+    L1_proc->instance_cnt = 0;
+    pthread_cond_signal(&L1_proc->cond);
+    pthread_mutex_unlock(&L1_proc->mutex);
+
+    pthread_mutex_lock(&L1_proc_tx->mutex);
+    L1_proc_tx->instance_cnt = 0;
+    pthread_cond_signal(&L1_proc_tx->cond);
+    pthread_mutex_unlock(&L1_proc_tx->mutex);
+
     pthread_mutex_lock(&proc->mutex_prach);
     proc->instance_cnt_prach = 0;
     pthread_cond_signal( &proc->cond_prach );
@@ -1080,18 +1065,24 @@ void kill_eNB_proc(int inst) {
 #endif
     LOG_I(PHY, "Destroying UL_INFO mutex\n");
     pthread_mutex_destroy(&eNB->UL_INFO_mutex);
-    for (i=0;i<2;i++) {
-      LOG_I(PHY, "Joining rxtx[%d] mutex/cond\n",i);
-      pthread_join( proc_rxtx[i].pthread_rxtx, (void**)&status );
-      LOG_I(PHY, "Destroying rxtx[%d] mutex/cond\n",i);
-      pthread_mutex_destroy( &proc_rxtx[i].mutex_rxtx );
-      pthread_cond_destroy( &proc_rxtx[i].cond_rxtx );
+
+    if ((get_thread_parallel_conf() == PARALLEL_RU_L1_SPLIT || get_thread_parallel_conf() == PARALLEL_RU_L1_TRX_SPLIT) && nfapi_mode!=2) {
+      LOG_I(PHY, "Joining L1_proc mutex/cond\n");
+      pthread_join( L1_proc->pthread, (void**)&status );
+      LOG_I(PHY, "Joining L1_proc_tx mutex/cond\n");
+      pthread_join( L1_proc_tx->pthread, (void**)&status );
     }
+    LOG_I(PHY, "Destroying L1_proc mutex/cond\n");
+    pthread_mutex_destroy( &L1_proc->mutex );
+    pthread_cond_destroy( &L1_proc->cond );
+    LOG_I(PHY, "Destroying L1_proc_tx mutex/cond\n");
+    pthread_mutex_destroy( &L1_proc_tx->mutex );
+    pthread_cond_destroy( &L1_proc_tx->cond );
 
     pthread_attr_destroy(&proc->attr_prach);
     pthread_attr_destroy(&proc->attr_asynch_rxtx);
-    pthread_attr_destroy(&proc_rxtx[0].attr_rxtx);
-    pthread_attr_destroy(&proc_rxtx[1].attr_rxtx);
+    pthread_attr_destroy(&L1_proc->attr);
+    pthread_attr_destroy(&L1_proc_tx->attr);
 #ifdef Rel14
     pthread_mutex_destroy(&proc->mutex_RU_PRACH_br);
     pthread_attr_destroy(&proc->attr_prach_br);
diff --git a/targets/RT/USER/lte-ru.c b/targets/RT/USER/lte-ru.c
index f91eeab3b4..dbbb24e43b 100644
--- a/targets/RT/USER/lte-ru.c
+++ b/targets/RT/USER/lte-ru.c
@@ -1135,7 +1135,7 @@ int check_sync(RU_t *ru, RU_t *ru_master, int subframe){
 	return 1;
 }
 
-void wakeup_eNBs(RU_t *ru) {
+void wakeup_L1s(RU_t *ru) {
 
   int i;
   PHY_VARS_eNB **eNB_list = ru->eNB_list;
@@ -1146,6 +1146,12 @@ void wakeup_eNBs(RU_t *ru) {
 LOG_I(PHY,"ENTERED wakeup_eNBs\n");
   LOG_D(PHY,"wakeup_eNBs (num %d) for RU %d (state %s)ru->eNB_top:%p\n",ru->num_eNB,ru->idx, ru_states[ru->state],ru->eNB_top);
 
+  LOG_D(PHY,"wakeup_L1s (num %d) for RU %d ru->eNB_top:%p\n",ru->num_eNB,ru->idx, ru->eNB_top);
+
+
+  if (ru->num_eNB==1 && ru->eNB_top!=0 && get_thread_parallel_conf() == PARALLEL_SINGLE_THREAD) {
+    // call eNB function directly
+  
     char string[20];
     sprintf(string,"Incoming RU %d",ru->idx);
     
@@ -1482,8 +1488,12 @@ volatile int16_t phy_tx_end;
 #endif
 
 static void* ru_thread_tx( void* param ) {
-  RU_t *ru         = (RU_t*)param;
-  RU_proc_t *proc  = &ru->proc;
+  RU_t *ru              = (RU_t*)param;
+  RU_proc_t *proc       = &ru->proc;
+  PHY_VARS_eNB *eNB;
+  eNB_proc_t *eNB_proc;
+  eNB_rxtx_proc_t *L1_proc;
+
   cpu_set_t cpuset;
   CPU_ZERO(&cpuset);
 
@@ -1506,11 +1516,10 @@ static void* ru_thread_tx( void* param ) {
 
     LOG_D(PHY,"ru_thread_tx (ru %d): Waiting for TX processing\n",ru->idx);
     // wait until eNBs are finished subframe RX n and TX n+4
-    //printf("ru_thread_tx, ru_proc->cond_eNBs, ru_proc->instance_cnt_eNBs\n");
     wait_on_condition(&proc->mutex_eNBs,&proc->cond_eNBs,&proc->instance_cnt_eNBs,"ru_thread_tx");
-    //printf("Passed ru_thread_tx ru_proc->cond_eNBs\n");
     LOG_I(PHY,"ru_thread_tx (ru %d): Woken from condition\n",ru->idx);
-if (oai_exit) break;
+    if (oai_exit) break;
+printf("~~~~~~~~~~~~~~~~~~~~~~~~~~~~ru_thread_tx is waken up %d.%d having L1 %d\n", proc->frame_tx, proc->subframe_tx, ru->num_eNB);
   	       
     // do TX front-end processing if needed (precoding and/or IDFTs)
     if (ru->feptx_prec) ru->feptx_prec(ru);
@@ -1525,16 +1534,22 @@ if (oai_exit) break;
 	}
     release_thread(&proc->mutex_eNBs,&proc->instance_cnt_eNBs,"ru_thread_tx");
     
-    pthread_mutex_lock( &proc->mutex_eNBs );
-    proc->ru_tx_ready++;
-//printf("~~~~~~~~~~~~~~~~~~proc->ru_tx_ready = %d\n", proc->ru_tx_ready);
-    // the thread can now be woken up
-    if (pthread_cond_signal(&proc->cond_eNBs) != 0) {
-      LOG_E( PHY, "[eNB] ERROR pthread_cond_signal for eNB TXnp4 thread\n");
-      exit_fun( "ERROR pthread_cond_signal" );
+    for(int i = 0; i<ru->num_eNB; i++)
+    {
+      eNB       = ru->eNB_list[i];
+      eNB_proc  = &eNB->proc;
+      L1_proc   = (get_thread_parallel_conf() == PARALLEL_RU_L1_TRX_SPLIT)? &eNB_proc->L1_proc_tx : &eNB_proc->L1_proc;
+char *L1_proc_name = (get_thread_parallel_conf() == PARALLEL_RU_L1_TRX_SPLIT)? "L1_proc_tx" : "L1_proc";
+printf("~~~~~~~~~~~~~~~~~~~~~~~~~~~~ru_thread_tx signaling to eNB_list[%d] with %s IC_RU %d\n", i, L1_proc_name, L1_proc->instance_cnt_RUs);
+      pthread_mutex_lock( &L1_proc->mutex_RUs );
+      L1_proc->instance_cnt_RUs = 0;
+      // the thread can now be woken up
+      if (pthread_cond_signal(&L1_proc->cond_RUs) != 0) {
+        LOG_E( PHY, "[eNB] ERROR pthread_cond_signal for eNB TXnp4 thread\n");
+        exit_fun( "ERROR pthread_cond_signal" );
+      }
+      pthread_mutex_unlock( &L1_proc->mutex_RUs );
     }
-    //printf("Sent ru_thread_tx, ru_proc->cond_eNBs to tx_thread\n");
-    pthread_mutex_unlock( &proc->mutex_eNBs );
   }
   release_thread(&proc->mutex_FH1,&proc->instance_cnt_FH1,"ru_thread_tx");
   return 0;
@@ -1797,10 +1812,10 @@ static void* ru_thread( void* param ) {
 	  exit_fun("error unlocking mutex_pre_scd");
 	}
 #endif
-	
-	// wakeup all eNB processes waiting for this RU
-	if (ru->num_eNB>0) wakeup_eNBs(ru);
-	
+
+    // wakeup all eNB processes waiting for this RU
+    if (ru->num_eNB>0) wakeup_L1s(ru);
+    
 #ifndef PHY_TX_THREAD
     if(get_thread_parallel_conf() == PARALLEL_SINGLE_THREAD || ru->num_eNB==0){
       // do TX front-end processing if needed (precoding and/or IDFTs)
@@ -1976,7 +1991,7 @@ static void* eNB_thread_phy_tx( void* param ) {
   RU_proc_t *proc = &ru->proc;
   PHY_VARS_eNB **eNB_list = ru->eNB_list;
 
-  eNB_rxtx_proc_t proc_rxtx;
+  eNB_rxtx_proc_t L1_proc;
 
   // set default return value
   eNB_thread_phy_tx_status = 0;
@@ -1993,9 +2008,9 @@ static void* eNB_thread_phy_tx( void* param ) {
 
     LOG_D(PHY,"Running eNB phy tx procedures\n");
     if(ru->num_eNB == 1){
-       proc_rxtx.subframe_tx = proc->subframe_phy_tx;
-       proc_rxtx.frame_tx = proc->frame_phy_tx;
-       phy_procedures_eNB_TX(eNB_list[0], &proc_rxtx, 1);
+       L1_proc.subframe_tx = proc->subframe_phy_tx;
+       L1_proc.frame_tx = proc->frame_phy_tx;
+       phy_procedures_eNB_TX(eNB_list[0], &L1_proc, 1);
        phy_tx_txdataF_end = 1;
        if(pthread_mutex_lock(&ru->proc.mutex_rf_tx) != 0){
           LOG_E( PHY, "[RU] ERROR pthread_mutex_lock for rf tx thread (IC %d)\n", ru->proc.instance_cnt_rf_tx);