sub-carrier spacing

openair1/PHY/LTE_TRANSPORT/SIB_NB_IoT.c

@@ -206,7 +206,8 @@ int generate_SIB23(NB_IoT_eNB_NDLSCH_t 	      *SIB23,
 ////////////////////////////////////////////////////////////////////////
 
 
-int generate_NDLSCH_NB_IoT(NB_IoT_eNB_NDLSCH_t 	  *RAR,
+int generate_NDLSCH_NB_IoT(PHY_VARS_eNB           *eNB,
+                           NB_IoT_eNB_NDLSCH_t 	  *RAR,
 		                   int32_t 				  **txdataF,
 		                   int16_t                amp,
 		                   LTE_DL_FRAME_PARMS 	  *frame_parms,
@@ -220,6 +221,12 @@ int generate_NDLSCH_NB_IoT(NB_IoT_eNB_NDLSCH_t 	  *RAR,
     {
     	uint8_t *RAR_pdu  = RAR->harq_process->pdu;
         // TODO:  process the RAR PDU to get the subcarrier indication for NPUSCH , Then set value in NPUSCH
+        if(RAR->active_msg2 == 1)
+        {
+            uint8_t one_byte = RAR_pdu[2]>>3;
+            uint8_t subcarrier_spacing = one_byte^0x01;
+            eNB->ulsch_NB_IoT[0]->harq_process->subcarrier_spacing = subcarrier_spacing;
+        }
         // to be added at the end of NPDSCH process
         // make different between RAR data and NPDSCH data   // add a flag in NPDSCH to switch between RA and normal data transmission
 	 	uint32_t rep =  RAR->repetition_number;
@@ -237,7 +244,6 @@ int generate_NDLSCH_NB_IoT(NB_IoT_eNB_NDLSCH_t 	  *RAR,
         if( (counter_rep == rep) && (counter_sf_rep == 0) && (pointer_to_sf == 0) )
         {
         	
-
             dlsch_encoding_NB_IoT(RAR_pdu,
                                   RAR,
                                   Nsf,             ///// number_of_subframes_required

openair1/PHY/LTE_TRANSPORT/defs_NB_IoT.h

@@ -413,6 +413,8 @@ typedef struct {
   uint32_t                rnti;
   /// Active flag for baseband transmitter processing
   uint8_t                 active;
+  /// Active flag when msg2 is transmitted 
+  uint8_t                 active_msg2;
   /// Indicator of TX activation per subframe.  Used during PUCCH detection for ACK/NAK.
   uint8_t                 subframe_tx[10];
   /// First CCE of last PDSCH scheduling per subframe.  Again used during PUCCH detection for ACK/NAK.

openair1/PHY/LTE_TRANSPORT/proto_NB_IoT.h

@@ -107,7 +107,8 @@ int allocate_REs_in_RB_NB_IoT(LTE_DL_FRAME_PARMS    *frame_parms,
                               uint8_t               pilot_shift,
                               uint32_t              *re_allocated); 
 
-int generate_NDLSCH_NB_IoT(NB_IoT_eNB_NDLSCH_t    *RAR,
+int generate_NDLSCH_NB_IoT(PHY_VARS_eNB           *eNB,
+                           NB_IoT_eNB_NDLSCH_t    *RAR,
                            int32_t                    **txdataF,
                            int16_t                    amp,
                            LTE_DL_FRAME_PARMS         *frame_parms,

openair1/SCHED/IF_Module_L1_primitives_NB_IoT.c

@@ -204,32 +204,10 @@ void handle_nfapi_dlsch_pdu_NB_IoT(PHY_VARS_eNB *eNB,
 	  {
 		  
 		  eNB->ndlsch_RAR->active 					= 1;
-	  	  eNB->ndlsch_RAR->harq_process->TBS = rel13->length;
-          /*uint8_t   tab_rar[7];
-		  tab_rar[0]=64;
-      	  tab_rar[1]=0;
-          tab_rar[2]=9;
-          tab_rar[3]=96;
-          tab_rar[4]=64;
-          tab_rar[5]=255; // 16
-          tab_rar[6]=242;     // 5
-
-		  eNB->ndlsch_RAR->harq_process->pdu 		= tab_rar;*/
-
-		  eNB->ndlsch_RAR->harq_process->pdu 		= sdu;
-		  
-		  /*printf("RAR PDU content:");
-		  int fori = 0;
-		  for(fori=0;fori<7;fori++)
-		  {
-			printf("%d ",eNB->ndlsch_RAR->harq_process->pdu[fori]);
-		  }
-		  printf("\n");*/
-			
-		  eNB->ndlsch_RAR->npdsch_start_symbol 		= rel13->start_symbol;
-		  eNB->ndlsch_RAR->active 					= 1;
+		  eNB->ndlsch_RAR->active_msg2              = 1;       /// activated only when NPDSCH is transmitting msg2
 
 		  eNB->ndlsch_RAR->rnti 					= rel13->rnti;
+		  eNB->ndlsch_RAR->npdsch_start_symbol 		= rel13->start_symbol;  
 
 		  eNB->ndlsch_RAR->rnti_type 				= rel13->rnti_type;
   		  eNB->ndlsch_RAR->resource_assignment 		= rel13->resource_assignment;    // for NDLSCH // this value point to -->  number of subframes needed
@@ -242,7 +220,8 @@ void handle_nfapi_dlsch_pdu_NB_IoT(PHY_VARS_eNB *eNB,
 		  eNB->ndlsch_RAR->counter_current_sf_repetition   = 0;
 		  eNB->ndlsch_RAR->pointer_to_subframe             = 0;
 		  //printf("number of subframe : %d, Rep of subframe : %d\n",eNB->ndlsch_RAR->number_of_subframes_for_resource_assignment,eNB->ndlsch_RAR->counter_repetition_number);
-
+		  eNB->ndlsch_RAR->harq_process->TBS               = rel13->length;
+		  eNB->ndlsch_RAR->harq_process->pdu 		       = sdu;
 	  }
 	  else
 	  { //this for ue data
@@ -466,7 +445,7 @@ void schedule_response_NB_IoT(Sched_Rsp_NB_IoT_t *Sched_INFO)
             nulsch->SF_idx             = nfapi_parameters_rel13->sf_idx;
             nulsch->HARQ_ACK_resource  = nfapi_parameters_rel13->nb_harq_information.nb_harq_information_rel13_fdd.harq_ack_resource;
 
-			nulsch_harq->subcarrier_spacing      = nfapi_parameters_rel13->handle; //* TO FIXE*///  // 0 for 15 KHz and 1 for 3.75 KHz// TODO : get the value from the UL_grant of MSG3 
+			//nulsch_harq->subcarrier_spacing      = nfapi_parameters_rel13->handle; // get from the UL_grant of MSG3 
 			nulsch_harq->subcarrier_indication   = nfapi_parameters_rel13->subcarrier_indication;    // Isc =0->18 , or 0->47 // format 2, 0->3 or 0->7
 			nulsch_harq->resource_assignment     = nfapi_parameters_rel13->resource_assignment;    // valid for format 1  // this should be set by DCI N0 // not used for msg3 // I_RU --> helps to get N_RU
 			nulsch_harq->mcs                     = nfapi_parameters_rel13->mcs;                 // I_mcs = 0->10 (single tone) and 0->12 (multi-tone)

openair1/SCHED/phy_procedures_lte_eNb_NB_IoT.c

@@ -348,7 +348,8 @@ void common_signal_procedures_NB_IoT(PHY_VARS_eNB *eNB,eNB_rxtx_proc_t *proc)
       /////////////////////////////////////////////////////////////////////////////////
       ///////////////////////////////////// NPDSCH ////////////////////////////////////
       /////////////////////////////////////////////////////////////////////////////////
-      generate_NDLSCH_NB_IoT(RAR,
+      generate_NDLSCH_NB_IoT(eNB,
+                             RAR,
                              txdataF,
                              AMP,
                              fp,

openair2/LAYER2/MAC/output_handler_NB_IoT.c

@@ -290,8 +290,8 @@ int output_handler(eNB_MAC_INST_NB_IoT *mac_inst, module_id_t module_id, int CC_
 
 					//contidition should be added to select either the UL_TBS_Table or t UL_TBS_table_msg3
 					// ******* sc_spacing issues to be fixed next *******////
-					uint8_t sc_spacing = 1;  
-					(ul_config_pdu + i) ->nulsch_pdu.nulsch_pdu_rel13.handle           = sc_spacing; // 1 for 15 KHz , 0 for 3.75 KHz
+					uint8_t sc_spacing = 1;  // 1 for 15 KHz , 0 for 3.75 KHz  // TODO, get this value from scheduler
+					//(ul_config_pdu + i) ->nulsch_pdu.nulsch_pdu_rel13.handle           = sc_spacing; 
 					//(ul_config_pdu + i) ->nulsch_pdu.nulsch_pdu_rel13.size                    = UL_TBS_Table[((DCIFormatN0_t *)DCI_pdu)->mcs][((DCIFormatN0_t *)DCI_pdu)->ResAssign];
 					//(ul_config_pdu + i) ->nulsch_pdu.nulsch_pdu_rel13.size                    = UL_TBS_Table[get_UL_I_TBS_from_MCS_NB_IoT(((DCIFormatN0_t *)DCI_pdu)->mcs, get_N_RU(((DCIFormatN0_t *)DCI_pdu)->ResAssign), 0)][((DCIFormatN0_t *)DCI_pdu)->ResAssign];
 					// get_UL_I_TBS_from_MCS_NB_IoT() to  be used to get the I_TBS for any NPUSCH format