diff --git a/targets/RT/USER/lte-enb.c b/targets/RT/USER/lte-enb.c
index 26447eb72f..7793e8901d 100644
--- a/targets/RT/USER/lte-enb.c
+++ b/targets/RT/USER/lte-enb.c
@@ -321,7 +321,9 @@ int wakeup_rxtx(PHY_VARS_eNB *eNB,RU_t *ru) {
 	LOG_E(PHY,"eNB %d frame %d, subframe %d : previous information from RU %d (num_RU %d,mask %x) has not been served yet!\n",
 	      eNB->Mod_id,proc->frame_rx,proc->subframe_rx,ru->idx,eNB->num_RU,proc->RU_mask);
       proc->RU_mask |= (1<<i);
-    }
+    }else if (eNB->RU_list[i]->state == RU_SYNC){
+        proc->RU_mask |= (1<<i);
+     }
   }
   if (proc->RU_mask != (1<<eNB->num_RU)-1) {  // not all RUs have provided their information so return
     pthread_mutex_unlock(&proc->mutex_RU);
@@ -392,12 +394,14 @@ void wakeup_prach_eNB(PHY_VARS_eNB *eNB,RU_t *ru,int frame,int subframe) {
     pthread_mutex_lock(&proc->mutex_RU_PRACH);
     for (i=0;i<eNB->num_RU;i++) {
       if (ru == eNB->RU_list[i]) {
-	LOG_D(PHY,"frame %d, subframe %d: RU %d for eNB %d signals PRACH (mask %x, num_RU %d)\n",frame,subframe,i,eNB->Mod_id,proc->RU_mask_prach,eNB->num_RU);
+	LOG_D(PHY,"frame %d, subframe %d: RU %d for eNB %d signals PRACH (mask %x, num_RU %d), state %d\n",frame,subframe,i,eNB->Mod_id,proc->RU_mask_prach,eNB->num_RU);
 	if ((proc->RU_mask_prach&(1<<i)) > 0)
 	  LOG_E(PHY,"eNB %d frame %d, subframe %d : previous information (PRACH) from RU %d (num_RU %d, mask %x) has not been served yet!\n",
 		eNB->Mod_id,frame,subframe,ru->idx,eNB->num_RU,proc->RU_mask_prach);
 	proc->RU_mask_prach |= (1<<i);
-      }
+      }else if (eNB->RU_list[i]->state == RU_SYNC){
+        proc->RU_mask_prach |= (1<<i);
+     }
     }
     if (proc->RU_mask_prach != (1<<eNB->num_RU)-1) {  // not all RUs have provided their information so return
       pthread_mutex_unlock(&proc->mutex_RU_PRACH);
@@ -457,7 +461,10 @@ void wakeup_prach_eNB_br(PHY_VARS_eNB *eNB,RU_t *ru,int frame,int subframe) {
 	  LOG_E(PHY,"eNB %d frame %d, subframe %d : previous information (PRACH BR) from RU %d (num_RU %d, mask %x) has not been served yet!\n",
 		eNB->Mod_id,frame,subframe,ru->idx,eNB->num_RU,proc->RU_mask_prach_br);
 	proc->RU_mask_prach_br |= (1<<i);
-      }
+      }else if (eNB->RU_list[i]->state == RU_SYNC){
+        proc->RU_mask_prach_br |= (1<<i);
+     }
+
     }
     if (proc->RU_mask_prach_br != (1<<eNB->num_RU)-1) {  // not all RUs have provided their information so return
       pthread_mutex_unlock(&proc->mutex_RU_PRACH_br);