/* * 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 */ #include "PHY/phy_extern.h" #include "PHY/defs_gNB.h" #include "sched_nr.h" #include "PHY/NR_TRANSPORT/nr_transport.h" #include "PHY/NR_TRANSPORT/nr_dlsch.h" #include "SCHED/sched_eNB.h" #include "SCHED/sched_common_extern.h" #include "nfapi_interface.h" #include "SCHED/fapi_l1.h" #include "common/utils/LOG/log.h" #include "common/utils/LOG/vcd_signal_dumper.h" #include "PHY/INIT/phy_init.h" #include "T.h" #include "assertions.h" #include "msc.h" #include <time.h> #if defined(ENABLE_ITTI) #include "intertask_interface.h" #endif extern uint8_t nfapi_mode; /* int return_ssb_type(nfapi_config_request_t *cfg) { int mu = cfg->subframe_config.numerology_index_mu.value; nr_ssb_type_e ssb_type; switch(mu) { case NR_MU_0: ssb_type = nr_ssb_type_A; break; case NR_MU_1: ssb_type = nr_ssb_type_B; break; case NR_MU_3: ssb_type = nr_ssb_type_D; break; case NR_MU_4: ssb_type = nr_ssb_type_E; break; default: AssertFatal(0==1, "Invalid numerology index %d for the synchronization block\n", mu); } LOG_D(PHY, "SSB type %d\n", ssb_type); return ssb_type; }*/ void nr_set_ssb_first_subcarrier(nfapi_nr_config_request_t *cfg, NR_DL_FRAME_PARMS *fp) { fp->ssb_start_subcarrier = (12 * cfg->sch_config.n_ssb_crb.value + cfg->sch_config.ssb_subcarrier_offset.value)/(1<<cfg->subframe_config.numerology_index_mu.value); LOG_D(PHY, "SSB first subcarrier %d (%d,%d)\n", fp->ssb_start_subcarrier,cfg->sch_config.n_ssb_crb.value,cfg->sch_config.ssb_subcarrier_offset.value); } void nr_common_signal_procedures (PHY_VARS_gNB *gNB,int frame, int slot) { NR_DL_FRAME_PARMS *fp=&gNB->frame_parms; nfapi_nr_config_request_t *cfg = &gNB->gNB_config; int **txdataF = gNB->common_vars.txdataF; uint8_t *pbch_pdu=&gNB->pbch_pdu[0]; uint8_t ssb_index, n_hf; int ssb_start_symbol, rel_slot; n_hf = cfg->sch_config.half_frame_index.value; // to set a effective slot number between 0 to 9 in the half frame where the SSB is supposed to be rel_slot = (n_hf)? (slot-10) : slot; LOG_D(PHY,"common_signal_procedures: frame %d, slot %d\n",frame,slot); if(rel_slot<10 && rel_slot>=0) { for (int i=0; i<2; i++) { // max two SSB per frame ssb_index = i + 2*rel_slot; // computing the ssb_index if ((fp->L_ssb >> ssb_index) & 0x01) { // generating the ssb only if the bit of L_ssb at current ssb index is 1 int ssb_start_symbol_abs = nr_get_ssb_start_symbol(fp, ssb_index, n_hf); // computing the starting symbol for current ssb ssb_start_symbol = ssb_start_symbol_abs % 14; // start symbol wrt slot nr_set_ssb_first_subcarrier(cfg, fp); // setting the first subcarrier LOG_D(PHY,"SS TX: frame %d, slot %d, start_symbol %d\n",frame,slot, ssb_start_symbol); nr_generate_pss(gNB->d_pss, txdataF[0], AMP, ssb_start_symbol, cfg, fp); nr_generate_sss(gNB->d_sss, txdataF[0], AMP, ssb_start_symbol, cfg, fp); nr_generate_pbch_dmrs(gNB->nr_gold_pbch_dmrs[n_hf][ssb_index],txdataF[0], AMP, ssb_start_symbol, cfg, fp); nr_generate_pbch(&gNB->pbch, pbch_pdu, gNB->nr_pbch_interleaver, txdataF[0], AMP, ssb_start_symbol, n_hf,fp->Lmax,ssb_index, frame, cfg, fp); } } } } void phy_procedures_gNB_TX(PHY_VARS_gNB *gNB, int frame,int slot, int do_meas) { int aa; uint8_t num_dci=0,num_pdsch_rnti; NR_DL_FRAME_PARMS *fp=&gNB->frame_parms; nfapi_nr_config_request_t *cfg = &gNB->gNB_config; int offset = gNB->CC_id; if ((cfg->subframe_config.duplex_mode.value == TDD) && (nr_slot_select(cfg,slot)==SF_UL)) return; VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_ENB_TX+offset,1); if (do_meas==1) start_meas(&gNB->phy_proc_tx); // clear the transmit data array for the current subframe for (aa=0; aa<1/*15*/; aa++) { memset(gNB->common_vars.txdataF[aa],0,fp->samples_per_slot_wCP*sizeof(int32_t)); } VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_COMMON_TX,1); if (nfapi_mode == 0 || nfapi_mode == 1) { nr_common_signal_procedures(gNB,frame, slot); //if (frame == 9) //write_output("txdataF.m","txdataF",gNB->common_vars.txdataF[aa],fp->samples_per_frame_wCP, 1, 1); } VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_COMMON_TX,0); num_dci = gNB->pdcch_vars.num_dci; num_pdsch_rnti = gNB->pdcch_vars.num_pdsch_rnti; if (num_dci) { LOG_D(PHY, "[gNB %d] Frame %d slot %d \ Calling nr_generate_dci_top (number of DCI %d)\n", gNB->Mod_id, frame, slot, num_dci); VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_PDCCH_TX,1); if (nfapi_mode == 0 || nfapi_mode == 1) { nr_generate_dci_top(gNB->pdcch_vars, gNB->nr_gold_pdcch_dmrs[slot], gNB->common_vars.txdataF[0], AMP, *fp, *cfg); VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_PDCCH_TX,0); if (num_pdsch_rnti) { VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GENERATE_DLSCH,1); LOG_D(PHY, "PDSCH generation started (%d)\n", num_pdsch_rnti); nr_generate_pdsch(*gNB->dlsch[0][0], gNB->pdcch_vars.dci_alloc[0], gNB->nr_gold_pdsch_dmrs[slot], gNB->common_vars.txdataF, AMP, frame,slot, *fp, *cfg); VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GENERATE_DLSCH,0); } } } VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_ENB_TX+offset,0); }