diff --git a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c index 44cbec27bdca563fdb5b15e540be226c61c6e3e7..387365f19a658d875e737ed6ddf054200a615d5f 100644 --- a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c +++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c @@ -596,6 +596,15 @@ void nr_schedule_ulsch(module_id_t module_id, RC.nrmac[module_id]->pre_processor_ul( module_id, frame, slot, num_slots_per_tdd, ulsch_in_slot_bitmap); + const int CC_id = 0; + nfapi_nr_ul_dci_request_t *ul_dci_req = &RC.nrmac[module_id]->UL_dci_req[CC_id]; + ul_dci_req->SFN = frame; + ul_dci_req->Slot = slot; + /* a PDCCH PDU groups DCIs per BWP and CORESET. Save a pointer to each + * allocated PDCCH so we can easily allocate UE's DCIs independent of any + * CORESET order */ + nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu_bwp_coreset[MAX_NUM_BWP][MAX_NUM_CORESET] = {0}; + NR_ServingCellConfigCommon_t *scc = RC.nrmac[module_id]->common_channels[0].ServingCellConfigCommon; NR_UE_info_t *UE_info = &RC.nrmac[module_id]->UE_info; const NR_UE_list_t *UE_list = &UE_info->list; @@ -780,16 +789,21 @@ void nr_schedule_ulsch(module_id_t module_id, pusch_pdu->pdu_bit_map &= ~PUSCH_PDU_BITMAP_PUSCH_PTRS; // disable PUSCH PTRS } - nfapi_nr_ul_dci_request_t *ul_dci_req = &RC.nrmac[module_id]->UL_dci_req[0]; - ul_dci_req->SFN = frame; - ul_dci_req->Slot = slot; - nfapi_nr_ul_dci_request_pdus_t *ul_dci_request_pdu = &ul_dci_req->ul_dci_pdu_list[ul_dci_req->numPdus]; - memset(ul_dci_request_pdu, 0, sizeof(nfapi_nr_ul_dci_request_pdus_t)); - ul_dci_request_pdu->PDUType = NFAPI_NR_DL_TTI_PDCCH_PDU_TYPE; - ul_dci_request_pdu->PDUSize = (uint8_t)(2+sizeof(nfapi_nr_dl_tti_pdcch_pdu)); - nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu = &ul_dci_request_pdu->pdcch_pdu.pdcch_pdu_rel15; - ul_dci_req->numPdus += 1; - nr_configure_pdcch(pdcch_pdu, sched_ctrl->search_space, sched_ctrl->coreset, scc, sched_ctrl->active_bwp); + /* look up the PDCCH PDU for this BWP and CORESET. If it does not exist, + * create it */ + const int bwpid = sched_ctrl->active_bwp->bwp_Id; + const int coresetid = sched_ctrl->coreset->controlResourceSetId; + nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu = pdcch_pdu_bwp_coreset[bwpid][coresetid]; + if (!pdcch_pdu) { + nfapi_nr_ul_dci_request_pdus_t *ul_dci_request_pdu = &ul_dci_req->ul_dci_pdu_list[ul_dci_req->numPdus]; + memset(ul_dci_request_pdu, 0, sizeof(nfapi_nr_ul_dci_request_pdus_t)); + ul_dci_request_pdu->PDUType = NFAPI_NR_DL_TTI_PDCCH_PDU_TYPE; + ul_dci_request_pdu->PDUSize = (uint8_t)(2+sizeof(nfapi_nr_dl_tti_pdcch_pdu)); + pdcch_pdu = &ul_dci_request_pdu->pdcch_pdu.pdcch_pdu_rel15; + ul_dci_req->numPdus += 1; + nr_configure_pdcch(pdcch_pdu, sched_ctrl->search_space, sched_ctrl->coreset, scc, sched_ctrl->active_bwp); + pdcch_pdu_bwp_coreset[bwpid][coresetid] = pdcch_pdu; + } LOG_D(MAC,"Configuring ULDCI/PDCCH in %d.%d\n", frame,slot);