ack params

openair1/PHY/LTE_TRANSPORT/lte_Isc_NB_IoT.c

@@ -39,6 +39,9 @@ uint8_t tab_ack_3_75khz[16]= {38,39,40,41,42,43,44,45,38,39,40,41,42,43,44,45};
 uint8_t tab_I_ru_N_ru_UL[8]= {1,2,3,4,5,6,8,10};
 uint8_t tab_I_rep_N_rep_UL[8]={1,2,4,8,16,32,64,128};
 
+/// 
+uint8_t tab_ack_sc_format1[16]={0,1,2,3,0,1,2,3,0,1,2,3,0,1,2,3};
+uint8_t tab_ack_sc_format2[16]={38,39,40,41,42,43,44,45,38,39,40,41,42,43,44,45};
 /*
 // Section 16.5.1.1 in 36.213
 uint16_t get_UL_sc_start_NB_IoT(uint16_t I_sc)
@@ -107,7 +110,21 @@ uint16_t get_UL_N_ru_NB_IoT(uint8_t I_mcs, uint8_t I_ru, uint8_t flag_msg3)
 
 }
 
+uint16_t get_UL_sc_ACK_NB_IoT(uint8_t subcarrier_spacing,uint16_t harq_ack_resource)
+{
+
+   if(subcarrier_spacing == 1)   /// 15KHz
+   {
+
+   	 return tab_ack_sc_format1[harq_ack_resource];
+
+   } else {    // 3.75 KHz
 
+   	 return tab_ack_sc_format2[harq_ack_resource];
+
+   }
+
+}
 
 
 uint16_t get_UL_sc_index_start_NB_IoT(uint8_t subcarrier_spacing, uint16_t I_sc, uint8_t npush_format)

openair1/PHY/LTE_TRANSPORT/proto_NB_IoT.h

@@ -490,7 +490,9 @@ void filtering_signal(int16_t *input_buffer, int16_t *filtered_buffer, uint32_t
 
 uint8_t get_Qm_UL_NB_IoT(unsigned char I_mcs, uint8_t N_sc_RU, uint8_t I_sc, uint8_t Msg3_flag);
 
-//uint16_t get_UL_sc_start_NB_IoT(uint16_t I_sc); 
+//uint16_t get_UL_sc_start_NB_IoT(uint16_t I_sc);
+
+uint16_t get_UL_sc_ACK_NB_IoT(uint8_t subcarrier_spacing,uint16_t harq_ack_resource); 
 
 uint16_t get_UL_sc_index_start_NB_IoT(uint8_t subcarrier_spacing, uint16_t I_sc, uint8_t npush_format);
 

openair1/PHY/LTE_TRANSPORT/ulsch_demodulation_NB_IoT.c

@@ -1867,6 +1867,7 @@ uint8_t rx_ulsch_Gen_NB_IoT(PHY_VARS_eNB            *eNB,
 
   if (ulsch_NB_IoT->Msg3_active  == 1)    
   {    
+      
       uint8_t      npusch_format         = ulsch_NB_IoT->npusch_format;           /// 0 or 1 -> format 1 or format 2         
       uint8_t      subcarrier_spacing    = ulsch_harq->subcarrier_spacing;        // can be set as fix value //values are OK // 0 (3.75 KHz) or 1 (15 KHz)
       uint16_t     I_sc                  = ulsch_harq->subcarrier_indication;     // Isc =0->18 , or 0->47 // format 2, 0->3 or 0->7
@@ -1874,6 +1875,7 @@ uint8_t rx_ulsch_Gen_NB_IoT(PHY_VARS_eNB            *eNB,
       uint16_t     Nsc_RU                = get_UL_N_ru_NB_IoT(I_mcs,ulsch_harq->resource_assignment,ulsch_NB_IoT->Msg3_flag);
       uint16_t     N_UL_slots            = get_UL_slots_per_RU_NB_IoT(subcarrier_spacing,I_sc,npusch_format)*Nsc_RU;           // N_UL_slots per word
       uint16_t     N_SF_per_word         = N_UL_slots/2;
+      uint16_t     ul_sc_start           = 0;//nulsch->HARQ_ACK_resource
 
       if(ulsch_NB_IoT->flag_vars == 1)
       {
@@ -1890,10 +1892,17 @@ uint8_t rx_ulsch_Gen_NB_IoT(PHY_VARS_eNB            *eNB,
       }
 
       uint8_t     pilot_pos1, pilot_pos2, pilots_slot;                                      // holds for npusch format 1, and 15 kHz subcarrier bandwidth
-      uint32_t     l;
-      uint32_t     rnti_tmp                   = ulsch_NB_IoT->rnti;                   
-      uint16_t     ul_sc_start                = get_UL_sc_index_start_NB_IoT(subcarrier_spacing,I_sc,npusch_format);
-      uint8_t      Qm                         = get_Qm_UL_NB_IoT(I_mcs,Nsc_RU,I_sc,ulsch_NB_IoT->Msg3_flag);              
+      uint32_t    l;
+      uint32_t    rnti_tmp              = ulsch_NB_IoT->rnti;
+
+      if( npusch_format == 1)    // format 2  // ACK part  
+      { 
+           ul_sc_start    =    get_UL_sc_ACK_NB_IoT(subcarrier_spacing,I_sc);
+      } else {                   
+           ul_sc_start    =    get_UL_sc_index_start_NB_IoT(subcarrier_spacing,I_sc,npusch_format); 
+      }
+
+      uint8_t      Qm     =    get_Qm_UL_NB_IoT(I_mcs,Nsc_RU,I_sc,ulsch_NB_IoT->Msg3_flag);              
 
       get_pilots_position(npusch_format, subcarrier_spacing, &pilot_pos1, &pilot_pos2, &pilots_slot);
       

openair1/SCHED/IF_Module_L1_primitives_NB_IoT.c

@@ -466,7 +466,7 @@ void schedule_response_NB_IoT(Sched_Rsp_NB_IoT_t *Sched_INFO)
 	  		nulsch = eNB->ulsch_NB_IoT[0];
 			nulsch_harq = nulsch->harq_process;
 	
-			nulsch->Msg3_active        = 1;
+			nulsch->Msg3_active        = 1; 
 			nulsch->Msg3_flag          = 0;
 			nulsch->flag_vars          = 1;
 			nulsch->rnti               = nfapi_parameters_rel13->rnti;
@@ -477,11 +477,11 @@ void schedule_response_NB_IoT(Sched_Rsp_NB_IoT_t *Sched_INFO)
             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; // 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->subcarrier_indication   = nfapi_parameters_rel13->nb_harq_information.nb_harq_information_rel13_fdd.harq_ack_resource;   // 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)
 			nulsch_harq->rvidx                   = nfapi_parameters_rel13->redudancy_version;   // values = 0 or 1
-			nulsch_harq->repetition_number       = nfapi_parameters_rel13->repetition_number;    //  // N_rep values = 0->7  // new funciton to be created to compute the nb_slots = f(N_rep)
+			nulsch_harq->repetition_number       = nfapi_parameters_rel13->ue_information.ue_information_rel13.total_number_of_repetitions;    //  // N_rep values = 0->7  // new funciton to be created to compute the nb_slots = f(N_rep)
 			nulsch_harq->new_data_indication     = nfapi_parameters_rel13->new_data_indication;   // valid only for DCI N0
 			nulsch_harq->TBS                     = nfapi_parameters_rel13->size;  /// check if needed *8 or /8 or nothing to do
 

openair2/LAYER2/MAC/output_handler_NB_IoT.c

@@ -315,9 +315,9 @@ int output_handler(eNB_MAC_INST_NB_IoT *mac_inst, module_id_t module_id, int CC_
                     (ul_config_pdu + i) ->nulsch_pdu.nulsch_pdu_rel13.size                = 16;
 
 					(ul_config_pdu + i) ->nulsch_pdu.nulsch_pdu_rel13.rnti                    = schedule_result_list_UL->rnti;
-					(ul_config_pdu + i) ->nulsch_pdu.nulsch_pdu_rel13.subcarrier_indication   = ((DCIFormatN0_t *)DCI_pdu)->scind;
-					(ul_config_pdu + i) ->nulsch_pdu.nulsch_pdu_rel13.resource_assignment     = ((DCIFormatN0_t *)DCI_pdu)->ResAssign;
-					(ul_config_pdu + i) ->nulsch_pdu.nulsch_pdu_rel13.repetition_number       = ((DCIFormatN0_t *)DCI_pdu)->RepNum;
+					//(ul_config_pdu + i) ->nulsch_pdu.nulsch_pdu_rel13.subcarrier_indication   = ((DCIFormatN0_t *)DCI_pdu)->scind;
+					//(ul_config_pdu + i) ->nulsch_pdu.nulsch_pdu_rel13.resource_assignment     = ((DCIFormatN0_t *)DCI_pdu)->ResAssign;
+					//(ul_config_pdu + i) ->nulsch_pdu.nulsch_pdu_rel13.repetition_number       = ((DCIFormatN0_t *)DCI_pdu)->RepNum;
 
 					(ul_config_pdu + i) ->nulsch_pdu.nulsch_pdu_rel13.ue_information.ue_information_rel13.total_number_of_repetitions = schedule_result_list_UL->R_harq;
 					//for ACK /NACK