Fixes to pass basic-sim in TDD and OAI-UE + USRP test

  -- cell synchronization was successful on the 1st try (in OAI UE + USRP) test

openair1/PHY/LTE_UE_TRANSPORT/drs_modulation.c

@@ -62,7 +62,11 @@ int generate_drs_pusch(PHY_VARS_UE *ue,
   LTE_DL_FRAME_PARMS *fp = (ue==NULL) ? frame_parms : &ue->frame_parms;
   int32_t *txF = (ue==NULL) ? txdataF[ant] : ue->common_vars.txdataF[ant];
   uint32_t u,v,alpha_ind;
-  uint32_t u0=0,u1=0,v0=0,v1=0;
+  uint32_t u0 = (ue==NULL) ? 0 : frame_parms->pusch_config_common.ul_ReferenceSignalsPUSCH.grouphop[subframe<<1];
+  uint32_t u1 = (ue==NULL) ? 0 : frame_parms->pusch_config_common.ul_ReferenceSignalsPUSCH.grouphop[1+(subframe<<1)];
+  uint32_t v0 = (ue==NULL) ? 0 : frame_parms->pusch_config_common.ul_ReferenceSignalsPUSCH.seqhop[subframe<<1];
+  uint32_t v1 = (ue==NULL) ? 0 : frame_parms->pusch_config_common.ul_ReferenceSignalsPUSCH.seqhop[1+(subframe<<1)];
+
   int32_t ref_re,ref_im;
   uint8_t harq_pid = (proc == NULL) ? 0: subframe2harq_pid(fp,proc->frame_tx,subframe);
 

openair1/PHY/LTE_UE_TRANSPORT/initial_sync.c

@@ -423,7 +423,6 @@ int initial_sync(PHY_VARS_UE *ue, runmode_t mode) {
     }
   }
 
-  ue->common_vars.freq_offset=0;
   /* Consider this is a false detection if the offset is > 1000 Hz */
   if( (abs(ue->common_vars.freq_offset) > 150) && (ret == 0) ) {
     ret=-1;
@@ -446,18 +445,6 @@ int initial_sync(PHY_VARS_UE *ue, runmode_t mode) {
       generate_phich_reg_mapping(frame_parms);
       ue->pbch_vars[0]->pdu_errors_conseq=0;
 
-      if (ue->frame_parms.frame_type==FDD) {
-	ue->N_TA_offset = 0;
-      }
-      else {
-	if (ue->frame_parms.N_RB_DL == 100)
-	  ue->N_TA_offset = 624;
-	else if (ue->frame_parms.N_RB_DL == 50)
-	  ue->N_TA_offset = 624/2;
-	else if (ue->frame_parms.N_RB_DL == 25)
-	  ue->N_TA_offset = 624/4;
-	  
-      }
     }
 
     LOG_I(PHY, "[UE %d] Frame %d RRC Measurements => rssi %3.1f dBm (dig %3.1f dB, gain %d), N0 %d dBm,  rsrp %3.1f dBm/RE, rsrq %3.1f dB\n",ue->Mod_id,

targets/RT/USER/lte-enb.c

@@ -579,33 +579,10 @@ int wakeup_rxtx(PHY_VARS_eNB *eNB,RU_t *ru) {
   RU_proc_t *ru_proc=&ru->proc;
   L1_rxtx_proc_t *L1_proc=&proc->L1_proc;
   LTE_DL_FRAME_PARMS *fp = &eNB->frame_parms;
+  int ret;
 
-  int i,ret;
-  
   LOG_D(PHY,"ENTERED wakeup_rxtx, %d.%d\n",ru_proc->frame_rx,ru_proc->subframe_rx);
 
-
-  
-  AssertFatal((ret=pthread_mutex_lock(&proc->mutex_RU))==0,"mutex_lock returns %d\n",ret);
-  for (i=0;i<eNB->num_RU;i++) {
-    if (ru == eNB->RU_list[i]) {
-      if ((proc->RU_mask[ru_proc->subframe_rx]&(1<<i)) > 0)
-	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[ru_proc->subframe_rx]);
-      proc->RU_mask[ru_proc->subframe_rx] |= (1<<i);
-    }
-  }
-  if (proc->RU_mask[ru_proc->subframe_rx] != (1<<eNB->num_RU)-1) {  // not all RUs have provided their information so return
-    LOG_E(PHY,"Not all RUs have provided their info\n");
-    AssertFatal((ret=pthread_mutex_unlock(&proc->mutex_RU))==0,"mutex_unlock returns %d\n",ret);
-    return(0);
-  }
-  else { // all RUs have provided their information so continue on and wakeup eNB processing
-    proc->RU_mask[ru_proc->subframe_rx] = 0;
-    AssertFatal((ret=pthread_mutex_unlock(&proc->mutex_RU))==0,"mutex_unlock returns %d\n",ret);
-  }
-
-
   // wake up TX for subframe n+sl_ahead
   // lock the TX mutex and make sure the thread is ready
   AssertFatal((ret=pthread_mutex_lock(&L1_proc->mutex)) == 0,"mutex_lock returns %d\n", ret);