/* * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The OpenAirInterface Software Alliance licenses this file to You under * the OAI Public License, Version 1.1 (the "License"); you may not use this file * except in compliance with the License. * You may obtain a copy of the License at * * http://www.openairinterface.org/?page_id=698 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *------------------------------------------------------------------------------- * For more information about the OpenAirInterface (OAI) Software Alliance: * contact@openairinterface.org */ /* \file NR_IF_Module.c * \brief functions for NR UE FAPI-like interface * \author R. Knopp, K.H. HSU * \date 2018 * \version 0.1 * \company Eurecom / NTUST * \email: knopp@eurecom.fr, kai-hsiang.hsu@eurecom.fr * \note * \warning */ #include "NR_IF_Module.h" #include "mac_proto.h" #include "assertions.h" #include "LAYER2/NR_MAC_UE/mac_extern.h" #include "SCHED_NR_UE/fapi_nr_ue_l1.h" #include <stdio.h> #define MAX_IF_MODULES 100 static nr_ue_if_module_t *nr_ue_if_module_inst[MAX_IF_MODULES]; // L2 Abstraction Layer int handle_bcch_bch(UE_nr_rxtx_proc_t *proc, module_id_t module_id, int cc_id, unsigned int gNB_index, uint8_t *pduP, unsigned int additional_bits, uint32_t ssb_index, uint32_t ssb_length, uint16_t cell_id){ return nr_ue_decode_mib( proc, module_id, cc_id, gNB_index, additional_bits, ssb_length, // Lssb = 64 is not support ssb_index, pduP, cell_id); } // L2 Abstraction Layer int handle_bcch_dlsch(module_id_t module_id, int cc_id, unsigned int gNB_index, uint32_t sibs_mask, uint8_t *pduP, uint32_t pdu_len){ return 0; } // L2 Abstraction Layer int handle_dci(module_id_t module_id, int cc_id, unsigned int gNB_index, fapi_nr_dci_pdu_rel15_t *dci, uint16_t rnti, uint32_t dci_type){ //printf("handle_dci: rnti %x,dci_type %d\n",rnti,dci_type); return nr_ue_process_dci(module_id, cc_id, gNB_index, dci, rnti, dci_type); } // L2 Abstraction Layer int8_t handle_dlsch (module_id_t module_id, int cc_id, uint8_t gNB_index, fapi_nr_dci_indication_t *dci_ind, uint8_t *pduP, uint32_t pdu_len){ return 0; /* return nr_ue_process_dlsch( module_id, cc_id, gNB_index, dci_ind, pduP, pdu_len); */ } int nr_ue_ul_indication(nr_uplink_indication_t *ul_info){ NR_UE_L2_STATE_t ret; module_id_t module_id = ul_info->module_id; NR_UE_MAC_INST_t *mac = get_mac_inst(module_id); // clean previous FAPI messages mac->tx_request.number_of_pdus = 0; mac->ul_config_request.number_pdus = 0; mac->dl_config_request.number_pdus = 0; // clean previous FAPI messages ret = nr_ue_scheduler( ul_info->module_id, ul_info->gNB_index, ul_info->cc_id, ul_info->frame, ul_info->slot, ul_info->ssb_index, 0, 0); // TODO check tx/rx frame/slot is need for NR version switch(ret){ case UE_CONNECTION_OK: break; case UE_CONNECTION_LOST: break; case UE_PHY_RESYNCH: break; case UE_PHY_HO_PRACH: break; default: break; } mac->if_module->scheduled_response(&mac->scheduled_response); return 0; } int nr_ue_dl_indication(nr_downlink_indication_t *dl_info){ int32_t i; uint32_t ret_mask = 0x0; module_id_t module_id = dl_info->module_id; NR_UE_MAC_INST_t *mac = get_mac_inst(module_id); fapi_nr_dl_config_request_t *dl_config = &mac->dl_config_request; fapi_nr_ul_config_request_t *ul_config = &mac->ul_config_request; dl_config->number_pdus = 0; ul_config->number_pdus = 0; //hook up pointers mac->scheduled_response.dl_config = dl_config; mac->scheduled_response.ul_config = ul_config; mac->scheduled_response.tx_request = &mac->tx_request; mac->scheduled_response.module_id = dl_info->module_id; mac->scheduled_response.CC_id = dl_info->cc_id; mac->scheduled_response.frame = dl_info->frame; mac->scheduled_response.slot = dl_info->slot; if(dl_info->dci_ind != NULL){ LOG_D(MAC,"[L2][IF MODULE][DL INDICATION][DCI_IND]\n"); for(i=0; i<dl_info->dci_ind->number_of_dcis; ++i){ LOG_D(MAC,">>>NR_IF_Module i=%d, dl_info->dci_ind->number_of_dcis=%d\n",i,dl_info->dci_ind->number_of_dcis); fapi_nr_dci_pdu_rel15_t *dci = &dl_info->dci_ind->dci_list[i].dci; ret_mask |= (handle_dci( dl_info->module_id, dl_info->cc_id, dl_info->gNB_index, dci, (dl_info->dci_ind->dci_list+i)->rnti, (dl_info->dci_ind->dci_list+i)->dci_format)) << FAPI_NR_DCI_IND; AssertFatal( nr_ue_if_module_inst[module_id] != NULL, "IF module is void!\n" ); nr_ue_if_module_inst[module_id]->scheduled_response(&mac->scheduled_response); /*switch((dl_info->dci_ind->dci_list+i)->dci_type){ case FAPI_NR_DCI_TYPE_0_0: case FAPI_NR_DCI_TYPE_0_1: case FAPI_NR_DCI_TYPE_1_1: case FAPI_NR_DCI_TYPE_2_0: case FAPI_NR_DCI_TYPE_2_1: case FAPI_NR_DCI_TYPE_2_2: case FAPI_NR_DCI_TYPE_2_3: AssertFatal(1==0, "Not yet support at this moment!\n"); break; case FAPI_NR_DCI_TYPE_1_0: dl_config->dl_config_list[dl_config->number_pdus].pdu_type = FAPI_NR_DL_CONFIG_TYPE_DLSCH; // mapping into DL_CONFIG_REQ for DL-SCH fapi_nr_dl_config_dlsch_pdu_rel15_t *dlsch_config_pdu = &dl_config->dl_config_list[dl_config->number_pdus].dlsch_config_pdu.dlsch_config_rel15; dl_config->dl_config_list[dl_config->number_pdus].dlsch_config_pdu.rnti = 0x0000; // TX RNTI: UE-spec memcpy(dlsch_config_pdu, dci, sizeof(fapi_nr_dci_pdu_rel15_t)); dl_config->number_pdus = dl_config->number_pdus + 1; ret_mask |= (handle_dci( dl_info->module_id, dl_info->cc_id, dl_info->gNB_index, dci, (dl_info->dci_ind->dci_list+i)->rnti, (dl_info->dci_ind->dci_list+i)->dci_type)) << FAPI_NR_DCI_IND; break; default: break; }*/ //(dl_info->dci_list+i)->rnti } } if(dl_info->rx_ind != NULL){ LOG_I(MAC,"[L2][IF MODULE][DL INDICATION][RX_IND]\n"); for(i=0; i<dl_info->rx_ind->number_pdus; ++i){ switch(dl_info->rx_ind->rx_indication_body[i].pdu_type){ case FAPI_NR_RX_PDU_TYPE_MIB: ret_mask |= (handle_bcch_bch( dl_info->proc, dl_info->module_id, dl_info->cc_id, dl_info->gNB_index, (dl_info->rx_ind->rx_indication_body+i)->mib_pdu.pdu, (dl_info->rx_ind->rx_indication_body+i)->mib_pdu.additional_bits, (dl_info->rx_ind->rx_indication_body+i)->mib_pdu.ssb_index, (dl_info->rx_ind->rx_indication_body+i)->mib_pdu.ssb_length, (dl_info->rx_ind->rx_indication_body+i)->mib_pdu.cell_id )) << FAPI_NR_RX_PDU_TYPE_MIB; break; case FAPI_NR_RX_PDU_TYPE_SIB: ret_mask |= (handle_bcch_dlsch(dl_info->module_id, dl_info->cc_id, dl_info->gNB_index, (dl_info->rx_ind->rx_indication_body+i)->sib_pdu.sibs_mask, (dl_info->rx_ind->rx_indication_body+i)->sib_pdu.pdu, (dl_info->rx_ind->rx_indication_body+i)->sib_pdu.pdu_length )) << FAPI_NR_RX_PDU_TYPE_SIB; break; case FAPI_NR_RX_PDU_TYPE_DLSCH: // ret_mask |= (0) << FAPI_NR_RX_PDU_TYPE_DLSCH; ret_mask |= (handle_dlsch(dl_info->module_id, dl_info->cc_id, dl_info->gNB_index, dl_info->dci_ind, (dl_info->rx_ind->rx_indication_body+i)->pdsch_pdu.pdu, (dl_info->rx_ind->rx_indication_body+i)->pdsch_pdu.pdu_length)) << FAPI_NR_RX_PDU_TYPE_DLSCH; break; default: break; } } } //clean up nr_downlink_indication_t *dl_info dl_info->rx_ind = NULL; dl_info->dci_ind = NULL; return 0; } nr_ue_if_module_t *nr_ue_if_module_init(uint32_t module_id){ if (nr_ue_if_module_inst[module_id] == NULL) { nr_ue_if_module_inst[module_id] = (nr_ue_if_module_t *)malloc(sizeof(nr_ue_if_module_t)); memset((void*)nr_ue_if_module_inst[module_id],0,sizeof(nr_ue_if_module_t)); nr_ue_if_module_inst[module_id]->cc_mask=0; nr_ue_if_module_inst[module_id]->current_frame = 0; nr_ue_if_module_inst[module_id]->current_slot = 0; nr_ue_if_module_inst[module_id]->phy_config_request = nr_ue_phy_config_request; nr_ue_if_module_inst[module_id]->scheduled_response = nr_ue_scheduled_response; nr_ue_if_module_inst[module_id]->dl_indication = nr_ue_dl_indication; nr_ue_if_module_inst[module_id]->ul_indication = nr_ue_ul_indication; } return nr_ue_if_module_inst[module_id]; } int nr_ue_if_module_kill(uint32_t module_id) { if (nr_ue_if_module_inst[module_id] != NULL){ free(nr_ue_if_module_inst[module_id]); } return 0; } int nr_ue_dcireq(nr_dcireq_t *dcireq) { fapi_nr_dl_config_request_t *dl_config=&dcireq->dl_config_req; NR_UE_MAC_INST_t *UE_mac = get_mac_inst(0); // Type0 PDCCH search space dl_config->number_pdus = 1; dl_config->dl_config_list[0].pdu_type = FAPI_NR_DL_CONFIG_TYPE_DCI; dl_config->dl_config_list[0].dci_config_pdu.dci_config_rel15.rnti = 0x1234; // to be set uint64_t mask = 0x0; uint16_t num_rbs=24; uint16_t rb_offset=0; uint16_t cell_id=0; uint16_t num_symbols=2; for(int i=0; i<(num_rbs/6); ++i){ // 38.331 Each bit corresponds a group of 6 RBs mask = mask >> 1; mask = mask | 0x100000000000; } dl_config->dl_config_list[0].dci_config_pdu.dci_config_rel15.coreset.frequency_domain_resource = mask; dl_config->dl_config_list[0].dci_config_pdu.dci_config_rel15.coreset.rb_offset = rb_offset; // additional parameter other than coreset dl_config->dl_config_list[0].dci_config_pdu.dci_config_rel15.coreset.duration = num_symbols; dl_config->dl_config_list[0].dci_config_pdu.dci_config_rel15.coreset.cce_reg_mapping_type =CCE_REG_MAPPING_TYPE_NON_INTERLEAVED; dl_config->dl_config_list[0].dci_config_pdu.dci_config_rel15.coreset.cce_reg_interleaved_reg_bundle_size = 0; // L 38.211 7.3.2.2 dl_config->dl_config_list[0].dci_config_pdu.dci_config_rel15.coreset.cce_reg_interleaved_interleaver_size = 0; // R 38.211 7.3.2.2 dl_config->dl_config_list[0].dci_config_pdu.dci_config_rel15.coreset.cce_reg_interleaved_shift_index = cell_id; dl_config->dl_config_list[0].dci_config_pdu.dci_config_rel15.coreset.precoder_granularity = PRECODER_GRANULARITY_SAME_AS_REG_BUNDLE; dl_config->dl_config_list[0].dci_config_pdu.dci_config_rel15.coreset.pdcch_dmrs_scrambling_id = cell_id; uint32_t number_of_search_space_per_slot=1; uint32_t first_symbol_index=0; uint32_t search_space_duration=0; // element of search space uint32_t coreset_duration; // element of coreset coreset_duration = num_symbols * number_of_search_space_per_slot; dl_config->dl_config_list[0].dci_config_pdu.dci_config_rel15.number_of_candidates[0] = table_38213_10_1_1_c2[0]; dl_config->dl_config_list[0].dci_config_pdu.dci_config_rel15.number_of_candidates[1] = table_38213_10_1_1_c2[1]; dl_config->dl_config_list[0].dci_config_pdu.dci_config_rel15.number_of_candidates[2] = table_38213_10_1_1_c2[2]; // CCE aggregation level = 4 dl_config->dl_config_list[0].dci_config_pdu.dci_config_rel15.number_of_candidates[3] = table_38213_10_1_1_c2[3]; // CCE aggregation level = 8 dl_config->dl_config_list[0].dci_config_pdu.dci_config_rel15.number_of_candidates[4] = table_38213_10_1_1_c2[4]; // CCE aggregation level = 16 dl_config->dl_config_list[0].dci_config_pdu.dci_config_rel15.duration = search_space_duration; dl_config->dl_config_list[0].dci_config_pdu.dci_config_rel15.monitoring_symbols_within_slot = (0x3fff << first_symbol_index) & (0x3fff >> (14-coreset_duration-first_symbol_index)) & 0x3fff; dl_config->dl_config_list[0].dci_config_pdu.dci_config_rel15.N_RB_BWP = UE_mac->initial_bwp_dl.N_RB; return 0; }