Fix ULSCH traffic generation at UE side. Still not received at gNB

openair1/PHY/NR_UE_TRANSPORT/nr_ulsch_ue.c

@@ -178,7 +178,6 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
 
     if (harq_process_ul_ue != NULL){
       data_existing = 0;
-
       if (IS_SOFTMODEM_NOS1){
         data_existing = nr_ue_get_sdu(UE->Mod_id, UE->CC_id, frame,
           slot, 0, ulsch_input_buffer, harq_process_ul_ue->TBS/8, &access_mode);
@@ -186,14 +185,6 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
         if(data_existing){
         	//harq_process_ul_ue->a = (unsigned char*)calloc(harq_process_ul_ue->TBS/8, sizeof(unsigned char));
         	memcpy(harq_process_ul_ue->a, ulsch_input_buffer, harq_process_ul_ue->TBS/8);
-
-    			#ifdef DEBUG_MAC_PDU
-    				LOG_I(PHY, "Printing MAC PDU to be encoded, TBS is: %d \n", harq_process_ul_ue->TBS/8);
-    				for (i = 0; i < harq_process_ul_ue->TBS / 8; i++) {
-    					printf("0x%02x",harq_process_ul_ue->a[i]);
-    				}
-    				printf("\n");
-				#endif
         }
       }
       //Random traffic to be transmitted if there is no IP traffic available for this Tx opportunity
@@ -202,15 +193,24 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
         //and block this traffic from being forwarded to the upper layers at the gNB
         uint16_t payload_offset = 5;
         LOG_D(PHY, "Random data to be tranmsitted: \n");
-        //Give the header bytes some dummy value in order to block the random packet at the MAC layer of the receiver
+
+        //Give the header bytes a dummy value (a value not corresponding to any valid LCID based on 38.321, Table 6.2.1-2)
+        //in order to block the random packet at the MAC layer of the receiver
         for (i = 0; i<payload_offset; i++)
-          harq_process_ul_ue->a[i] = 0;
+          harq_process_ul_ue->a[i] = 64;
 
         for (i = payload_offset; i < harq_process_ul_ue->TBS / 8; i++) {
           harq_process_ul_ue->a[i] = (unsigned char) rand();
           //printf(" input encoder a[%d]=0x%02x\n",i,harq_process_ul_ue->a[i]);
         }
       }
+      #ifdef DEBUG_MAC_PDU
+      LOG_I(PHY, "Printing MAC PDU to be encoded, TBS is: %d \n", harq_process_ul_ue->TBS/8);
+      for (i = 0; i < harq_process_ul_ue->TBS / 8; i++) {
+        printf("0x%02x",harq_process_ul_ue->a[i]);
+      }
+      printf("\n");
+	  #endif
     } else {
       LOG_E(PHY, "[phy_procedures_nrUE_TX] harq_process_ul_ue is NULL !!\n");
       return;

openair1/SCHED_NR_UE/phy_procedures_nr_ue.c

@@ -2243,7 +2243,7 @@ void phy_procedures_nrUE_TX(PHY_VARS_NR_UE *ue,
   start_meas(&ue->phy_proc_tx);
 #endif
 
-  if (ue->UE_mode[gNB_id] == PUSCH ){
+  if (ue->UE_mode[gNB_id] == PUSCH || get_softmodem_params()->phy_test == 1){
     nr_ue_ulsch_procedures(ue, harq_pid, frame_tx, slot_tx, thread_id, gNB_id);
 
 /*

openair2/NR_UE_PHY_INTERFACE/NR_IF_Module.c

@@ -122,7 +122,7 @@ int nr_ue_ul_indication(nr_uplink_indication_t *ul_info){
                         ul_info->frame_tx,
                         ul_info->slot_tx);
 
-  if (is_nr_UL_slot(mac->scc, ul_info->slot_tx))
+  if (is_nr_UL_slot(mac->scc, ul_info->slot_tx) && get_softmodem_params()->do_ra)
     nr_ue_prach_scheduler(module_id, ul_info->frame_tx, ul_info->slot_tx);
 
   switch(ret){