Fix for problems that L2sim finishes in case of multiple UEs and UE L2sim keeps wating for a signal.

targets/RT/USER/lte-uesoftmodem.c

@@ -852,7 +852,7 @@ printf("~~~~~~~~~~~~~~~~~~~~successfully get the parallel config[%d], worker con
 
 
   printf("Running with %d UE instances\n",NB_UE_INST);
-  if (NB_UE_INST > 1 && simL1flag != 1) {
+  if (NB_UE_INST > 1 && simL1flag != 1 && nfapi_mode != 3) {
     printf("Running with more than 1 UE instance and simL1 is not active, this will result in undefined behaviour for now, exiting.\n");
     abort();
   }
@@ -971,6 +971,8 @@ printf("~~~~~~~~~~~~~~~~~~~~successfully get the parallel config[%d], worker con
     RCConfig_sim();
   }
 
+// source code written in below moved to later to avoid keeping waiting for nfapi_sync_cond in wait_nfapi_init.
+/*
   // start the main UE threads
   int eMBMS_active = 0;
 
@@ -1001,7 +1003,7 @@ printf("~~~~~~~~~~~~~~~~~~~~successfully get the parallel config[%d], worker con
               PHY_vars_UE_g[0][CC_id]->rf_map.chain=CC_id+chain_offset;
       }
   }
-
+*/
   
   cpuf=get_cpu_freq_GHz();
   
@@ -1090,7 +1092,36 @@ printf("~~~~~~~~~~~~~~~~~~~~successfully get the parallel config[%d], worker con
     }
     printf("NFAPI MODE:%s\n", nfapi_mode_str);
 
+  // start the main UE threads
+  int eMBMS_active = 0;
 
+  if (nfapi_mode==3) // UE-STUB-PNF
+  {
+      config_sync_var=0;
+      wait_nfapi_init("main?");
+      //Panos: Temporarily we will be using single set of threads for multiple UEs.
+      //init_UE_stub(1,eMBMS_active,uecap_xer_in,emul_iface);
+      init_UE_stub_single_thread(NB_UE_INST,eMBMS_active,uecap_xer_in,emul_iface);
+  }
+  else {
+      init_UE(NB_UE_INST,eMBMS_active,uecap_xer_in,0,phy_test,UE_scan,UE_scan_carrier,mode,(int)rx_gain[0][0],tx_max_power[0],
+              frame_parms[0]);
+  }
+
+
+  if (phy_test==0) {
+    printf("Filling UE band info\n");
+    fill_ue_band_info();
+    dl_phy_sync_success (0, 0, 0, 1);
+  }
+
+  if (nfapi_mode!=3){
+      number_of_cards = 1;
+      for(CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
+              PHY_vars_UE_g[0][CC_id]->rf_map.card=0;
+              PHY_vars_UE_g[0][CC_id]->rf_map.chain=CC_id+chain_offset;
+      }
+  }
   // connect the TX/RX buffers