diff --git a/nfapi/open-nFAPI/nfapi/public_inc/fapi_nr_ue_interface.h b/nfapi/open-nFAPI/nfapi/public_inc/fapi_nr_ue_interface.h index d59ddf9d82..78502d7d7e 100644 --- a/nfapi/open-nFAPI/nfapi/public_inc/fapi_nr_ue_interface.h +++ b/nfapi/open-nFAPI/nfapi/public_inc/fapi_nr_ue_interface.h @@ -349,7 +349,7 @@ typedef struct { uint8_t bandwidth_index; // SRS bandwidth index B_SRS [3GPP TS 38.211, Sec 6.4.1.4.3], Value: 0 --> 3 uint8_t comb_size; // Transmission comb size K_TC [3GPP TS 38.211, Sec 6.4.1.4.2], Value: 0 = comb size 2, 1 = comb size 4, 2 = comb size 8 (Rel16) uint8_t comb_offset; // Transmission comb offset K'_TC[3GPP TS 38.211, Sec 6.4.1.4.3], Value: 0 --> 1 (combSize = 0), Value: 0 --> 3 (combSize = 1), Value: 0 --> 7 (combSize = 2) - uint8_t cyclic_chift; // Cyclic shift n_CS_SRS [3GPP TS 38.211, Sec 6.4.1.4.2], Value: 0 --> 7 (combSize = 0), Value: 0 --> 11 (combSize = 1), Value: 0 --> 5 (combSize = 2) + uint8_t cyclic_shift; // Cyclic shift n_CS_SRS [3GPP TS 38.211, Sec 6.4.1.4.2], Value: 0 --> 7 (combSize = 0), Value: 0 --> 11 (combSize = 1), Value: 0 --> 5 (combSize = 2) uint8_t frequency_position; // Frequency domain position n_RRC [3GPP TS 38.211, Sec 6.4.1.4.3], Value: 0 --> 67 uint16_t frequency_shift; // Frequency domain shift n_shift [3GPP TS 38.211, Sec 6.4.1.4.3], Value: 0 --> 268 uint8_t frequency_hopping; // Frequency hopping b_hop [3GPP TS 38.211, Sec 6.4.1.4.3], Value: 0 --> 3 diff --git a/openair1/PHY/INIT/nr_init_ue.c b/openair1/PHY/INIT/nr_init_ue.c index b60e77e814..76ab0d7403 100644 --- a/openair1/PHY/INIT/nr_init_ue.c +++ b/openair1/PHY/INIT/nr_init_ue.c @@ -136,6 +136,8 @@ int init_nr_ue_signal(PHY_VARS_NR_UE *ue, NR_UE_COMMON *const common_vars = &ue->common_vars; NR_UE_PBCH **const pbch_vars = ue->pbch_vars; NR_UE_PRACH **const prach_vars = ue->prach_vars; + NR_UE_SRS **const srs_vars = ue->srs_vars; + int i,j,k,l,slot,symb,q; int gNB_id; int th_id; @@ -318,6 +320,7 @@ int init_nr_ue_signal(PHY_VARS_NR_UE *ue, prach_vars[gNB_id] = (NR_UE_PRACH *)malloc16_clear(sizeof(NR_UE_PRACH)); pbch_vars[gNB_id] = (NR_UE_PBCH *)malloc16_clear(sizeof(NR_UE_PBCH)); + srs_vars[gNB_id] = (NR_UE_SRS *)malloc16_clear(sizeof(NR_UE_SRS)); if (abstraction_flag == 0) { for (th_id=0; th_idprach_vars[gNB_id]->prach_pdu), (void*)prach_config_pdu, sizeof(fapi_nr_ul_config_prach_pdu)); break; + case (FAPI_NR_UL_CONFIG_TYPE_SRS): + // srs config pdu + srs_config_pdu = &ul_config->ul_config_list[i].srs_config_pdu; + memcpy((void*)&(PHY_vars_UE_g[module_id][cc_id]->srs_vars[gNB_id]->srs_config_pdu), (void*)srs_config_pdu, sizeof(fapi_nr_ul_config_srs_pdu)); + break; + default: break; } diff --git a/openair2/LAYER2/NR_MAC_UE/nr_ue_scheduler.c b/openair2/LAYER2/NR_MAC_UE/nr_ue_scheduler.c index 08d77bf156..05e4332c45 100644 --- a/openair2/LAYER2/NR_MAC_UE/nr_ue_scheduler.c +++ b/openair2/LAYER2/NR_MAC_UE/nr_ue_scheduler.c @@ -55,6 +55,8 @@ #include "LAYER2/NR_MAC_COMMON/nr_mac_extern.h" +//#define SRS_DEBUG + static prach_association_pattern_t prach_assoc_pattern; static ssb_list_info_t ssb_list; @@ -879,7 +881,9 @@ int nr_config_pusch_pdu(NR_UE_MAC_INST_t *mac, } // Periodic SRS scheduling -void nr_ue_periodic_srs_scheduling(module_id_t mod_id, frame_t frame, slot_t slot) { +bool nr_ue_periodic_srs_scheduling(module_id_t mod_id, frame_t frame, slot_t slot) { + + bool srs_scheduled = false; NR_UE_MAC_INST_t *mac = get_mac_inst(mod_id); @@ -891,7 +895,7 @@ void nr_ue_periodic_srs_scheduling(module_id_t mod_id, frame_t frame, slot_t slo mac->cg->spCellConfig->spCellConfigDedicated->uplinkConfig->initialUplinkBWP) { srs_config = mac->cg->spCellConfig->spCellConfigDedicated->uplinkConfig->initialUplinkBWP->srs_Config->choice.setup; } else { - return; + return false; } for(int rs = 0; rs < srs_config->srs_ResourceSetToAddModList->list.count; rs++) { @@ -918,20 +922,90 @@ void nr_ue_periodic_srs_scheduling(module_id_t mod_id, frame_t frame, slot_t slo continue; } - int scs = mac->ULbwp[0] ? - mac->ULbwp[0]->bwp_Common->genericParameters.subcarrierSpacing : - mac->scc_SIB->uplinkConfigCommon->initialUplinkBWP.genericParameters.subcarrierSpacing; + NR_BWP_t ubwp = mac->ULbwp[0] ? + mac->ULbwp[0]->bwp_Common->genericParameters : + mac->scc_SIB->uplinkConfigCommon->initialUplinkBWP.genericParameters; uint16_t period = srs_period[srs_resource->resourceType.choice.periodic->periodicityAndOffset_p.present]; uint16_t offset = srs_resource->resourceType.choice.periodic->periodicityAndOffset_p.choice.sl40; - int n_slots_frame = nr_slots_per_frame[scs]; + int n_slots_frame = nr_slots_per_frame[ubwp.subcarrierSpacing]; // Check if UE should transmit the SRS if((frame*n_slots_frame+slot-offset)%period == 0) { - LOG_W(NR_MAC, "(%d.%d) Periodic SRS scheduling is not implemented yet!\n", frame, slot); + + fapi_nr_ul_config_request_t *ul_config = get_ul_config_request(mac, slot); + fapi_nr_ul_config_srs_pdu *srs_config_pdu = &ul_config->ul_config_list[ul_config->number_pdus].srs_config_pdu; + + srs_config_pdu->rnti = mac->crnti; + srs_config_pdu->handle = 0; + srs_config_pdu->bwp_size = NRRIV2BW(ubwp.locationAndBandwidth, MAX_BWP_SIZE);; + srs_config_pdu->bwp_start = NRRIV2PRBOFFSET(ubwp.locationAndBandwidth, MAX_BWP_SIZE);; + srs_config_pdu->subcarrier_spacing = ubwp.subcarrierSpacing; + srs_config_pdu->cyclic_prefix = 0; + srs_config_pdu->num_ant_ports = srs_resource->nrofSRS_Ports; + srs_config_pdu->num_symbols = srs_resource->resourceMapping.nrofSymbols; + + srs_config_pdu->num_repetitions = srs_resource->resourceMapping.repetitionFactor; + srs_config_pdu->time_start_position = srs_resource->resourceMapping.startPosition; + srs_config_pdu->config_index = srs_resource->freqHopping.c_SRS; + srs_config_pdu->sequence_id = srs_resource->sequenceId; + srs_config_pdu->bandwidth_index = srs_resource->freqHopping.b_SRS; + srs_config_pdu->comb_size = srs_resource->transmissionComb.present - 1; + + switch(srs_resource->transmissionComb.present) { + case NR_SRS_Resource__transmissionComb_PR_n2: + srs_config_pdu->comb_offset = srs_resource->transmissionComb.choice.n2->combOffset_n2; + srs_config_pdu->cyclic_shift = srs_resource->transmissionComb.choice.n2->cyclicShift_n2; + break; + case NR_SRS_Resource__transmissionComb_PR_n4: + srs_config_pdu->comb_offset = srs_resource->transmissionComb.choice.n4->combOffset_n4; + srs_config_pdu->cyclic_shift = srs_resource->transmissionComb.choice.n4->cyclicShift_n4; + break; + default: + LOG_W(NR_MAC, "Invalid or not implemented comb_size!\n"); + } + + srs_config_pdu->frequency_position = srs_resource->freqDomainPosition; + srs_config_pdu->frequency_shift = srs_resource->freqDomainShift; + srs_config_pdu->frequency_hopping = srs_resource->freqHopping.b_hop; + srs_config_pdu->group_or_sequence_hopping = srs_resource->groupOrSequenceHopping; + srs_config_pdu->resource_type = srs_resource->resourceType.present - 1; + srs_config_pdu->t_srs = period; + srs_config_pdu->t_offset = offset; + +#ifdef SRS_DEBUG + LOG_I(NR_MAC,"Frame = %i, slot = %i\n", frame, slot); + LOG_I(NR_MAC,"srs_config_pdu->rnti = 0x%04x\n", srs_config_pdu->rnti); + LOG_I(NR_MAC,"srs_config_pdu->handle = %u\n", srs_config_pdu->handle); + LOG_I(NR_MAC,"srs_config_pdu->bwp_size = %u\n", srs_config_pdu->bwp_size); + LOG_I(NR_MAC,"srs_config_pdu->bwp_start = %u\n", srs_config_pdu->bwp_start); + LOG_I(NR_MAC,"srs_config_pdu->subcarrier_spacing = %u\n", srs_config_pdu->subcarrier_spacing); + LOG_I(NR_MAC,"srs_config_pdu->cyclic_prefix = %u (0: Normal; 1: Extended)\n", srs_config_pdu->cyclic_prefix); + LOG_I(NR_MAC,"srs_config_pdu->num_ant_ports = %u (0 = 1 port, 1 = 2 ports, 2 = 4 ports)\n", srs_config_pdu->num_ant_ports); + LOG_I(NR_MAC,"srs_config_pdu->num_symbols = %u (0 = 1 symbol, 1 = 2 symbols, 2 = 4 symbols)\n", srs_config_pdu->num_symbols); + LOG_I(NR_MAC,"srs_config_pdu->num_repetitions = %u (0 = 1, 1 = 2, 2 = 4)\n", srs_config_pdu->num_repetitions); + LOG_I(NR_MAC,"srs_config_pdu->time_start_position = %u\n", srs_config_pdu->time_start_position); + LOG_I(NR_MAC,"srs_config_pdu->config_index = %u\n", srs_config_pdu->config_index); + LOG_I(NR_MAC,"srs_config_pdu->sequence_id = %u\n", srs_config_pdu->sequence_id); + LOG_I(NR_MAC,"srs_config_pdu->bandwidth_index = %u\n", srs_config_pdu->bandwidth_index); + LOG_I(NR_MAC,"srs_config_pdu->comb_size = %u (0 = comb size 2, 1 = comb size 4, 2 = comb size 8)\n", srs_config_pdu->comb_size); + LOG_I(NR_MAC,"srs_config_pdu->comb_offset = %u\n", srs_config_pdu->comb_offset); + LOG_I(NR_MAC,"srs_config_pdu->cyclic_shift = %u\n", srs_config_pdu->cyclic_shift); + LOG_I(NR_MAC,"srs_config_pdu->frequency_position = %u\n", srs_config_pdu->frequency_position); + LOG_I(NR_MAC,"srs_config_pdu->frequency_shift = %u\n", srs_config_pdu->frequency_shift); + LOG_I(NR_MAC,"srs_config_pdu->frequency_hopping = %u\n", srs_config_pdu->frequency_hopping); + LOG_I(NR_MAC,"srs_config_pdu->group_or_sequence_hopping = %u (0 = No hopping, 1 = Group hopping groupOrSequenceHopping, 2 = Sequence hopping)\n", srs_config_pdu->group_or_sequence_hopping); + LOG_I(NR_MAC,"srs_config_pdu->resource_type = %u (0: aperiodic, 1: semi-persistent, 2: periodic)\n", srs_config_pdu->resource_type); + LOG_I(NR_MAC,"srs_config_pdu->t_srs = %u\n", srs_config_pdu->t_srs); + LOG_I(NR_MAC,"srs_config_pdu->t_offset = %u\n", srs_config_pdu->t_offset); +#endif + + fill_ul_config(ul_config, frame, slot, FAPI_NR_UL_CONFIG_TYPE_SRS); + srs_scheduled = true; } } + return srs_scheduled; } // Performs : @@ -999,6 +1073,9 @@ NR_UE_L2_STATE_t nr_ue_scheduler(nr_downlink_indication_t *dl_info, nr_uplink_in fapi_nr_ul_config_request_t *ul_config = get_ul_config_request(mac, slot_tx); + // Periodic SRS scheduling + nr_ue_periodic_srs_scheduling(mod_id, frame_tx, slot_tx); + // Schedule ULSCH only if the current frame and slot match those in ul_config_req // AND if a UL grant (UL DCI or Msg3) has been received (as indicated by num_pdus) if (ul_config && (ul_info->slot_tx == ul_config->slot && ul_info->frame_tx == ul_config->sfn) && ul_config->number_pdus > 0){ @@ -1082,9 +1159,6 @@ NR_UE_L2_STATE_t nr_ue_scheduler(nr_downlink_indication_t *dl_info, nr_uplink_in frame_t txFrameP = ul_info->frame_tx; slot_t txSlotP = ul_info->slot_tx; - // Periodic SRS scheduling - nr_ue_periodic_srs_scheduling(mod_id, txFrameP, txSlotP); - // Handle the SR/BSR procedures per subframe NR_UE_MAC_INST_t *mac = get_mac_inst(mod_id); uint8_t gNB_indexP=0;