/* * 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 <fcntl.h> #include <math.h> #include <string.h> #include <sys/ioctl.h> #include <sys/mman.h> #include <unistd.h> #include "common/ran_context.h" #include "common/config/config_userapi.h" #include "common/utils/LOG/log.h" #include "LAYER2/NR_MAC_gNB/nr_mac_gNB.h" #include "LAYER2/NR_MAC_UE/mac_defs.h" #include "LAYER2/NR_MAC_UE/mac_extern.h" #include "PHY/defs_gNB.h" #include "PHY/defs_nr_common.h" #include "PHY/defs_nr_UE.h" #include "PHY/phy_vars_nr_ue.h" #include "PHY/types.h" #include "PHY/INIT/phy_init.h" #include "PHY/MODULATION/modulation_eNB.h" #include "PHY/MODULATION/nr_modulation.h" #include "PHY/MODULATION/modulation_UE.h" #include "PHY/NR_REFSIG/refsig_defs_ue.h" #include "PHY/NR_TRANSPORT/nr_dlsch.h" #include "PHY/NR_TRANSPORT/nr_transport_proto.h" #include "PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h" #include "SCHED_NR/fapi_nr_l1.h" #include "SCHED_NR/sched_nr.h" #include "SCHED_NR_UE/defs.h" #include "SCHED_NR_UE/fapi_nr_ue_l1.h" #include "NR_PHY_INTERFACE/NR_IF_Module.h" #include "NR_UE_PHY_INTERFACE/NR_IF_Module.h" #include "LAYER2/NR_MAC_UE/mac_proto.h" //#include "LAYER2/NR_MAC_gNB/mac_proto.h" //#include "openair2/LAYER2/NR_MAC_UE/mac_proto.h" #include "LAYER2/NR_MAC_gNB/mac_proto.h" #include "NR_asn_constant.h" #include "RRC/NR/MESSAGES/asn1_msg.h" #include "openair1/SIMULATION/RF/rf.h" #include "openair1/SIMULATION/TOOLS/sim.h" #include "openair1/SIMULATION/NR_PHY/nr_unitary_defs.h" //#include "openair1/SIMULATION/NR_PHY/nr_dummy_functions.c" #include "PHY/NR_REFSIG/ptrs_nr.h" #include "NR_RRCReconfiguration.h" #define inMicroS(a) (((double)(a))/(cpu_freq_GHz*1000.0)) #include "SIMULATION/LTE_PHY/common_sim.h" #include <openair2/LAYER2/MAC/mac_vars.h> #include <openair2/RRC/LTE/rrc_vars.h> LCHAN_DESC DCCH_LCHAN_DESC,DTCH_DL_LCHAN_DESC,DTCH_UL_LCHAN_DESC; rlc_info_t Rlc_info_um,Rlc_info_am_config; PHY_VARS_gNB *gNB; PHY_VARS_NR_UE *UE; RAN_CONTEXT_t RC; int32_t uplink_frequency_offset[MAX_NUM_CCs][4]; double cpuf; int sf_ahead=4 ; int sl_ahead=0; uint8_t nfapi_mode = 0; uint64_t downlink_frequency[MAX_NUM_CCs][4]; // dummy functions int dummy_nr_ue_ul_indication(nr_uplink_indication_t *ul_info) { return(0); } int8_t nr_mac_rrc_data_ind_ue(const module_id_t module_id, const int CC_id, const uint8_t gNB_index, const int8_t channel, const uint8_t* pduP, const sdu_size_t pdu_len) { return 0; } void rrc_data_ind( const protocol_ctxt_t *const ctxt_pP, const rb_id_t Srb_id, const sdu_size_t sdu_sizeP, const uint8_t *const buffer_pP ) { } int gtpv1u_create_s1u_tunnel( const instance_t instanceP, const gtpv1u_enb_create_tunnel_req_t *const create_tunnel_req_pP, gtpv1u_enb_create_tunnel_resp_t *const create_tunnel_resp_pP ) { return 0; } int rrc_gNB_process_GTPV1U_CREATE_TUNNEL_RESP( const protocol_ctxt_t *const ctxt_pP, const gtpv1u_enb_create_tunnel_resp_t *const create_tunnel_resp_pP, uint8_t *inde_list ) { return 0; } int gtpv1u_create_ngu_tunnel( const instance_t instanceP, const gtpv1u_gnb_create_tunnel_req_t * const create_tunnel_req_pP, gtpv1u_gnb_create_tunnel_resp_t * const create_tunnel_resp_pP){ return 0; } int gtpv1u_update_ngu_tunnel( const instance_t instanceP, const gtpv1u_gnb_create_tunnel_req_t *const create_tunnel_req_pP, const rnti_t prior_rnti ){ return 0; } int nr_rrc_gNB_process_GTPV1U_CREATE_TUNNEL_RESP( const protocol_ctxt_t *const ctxt_pP, const gtpv1u_gnb_create_tunnel_resp_t *const create_tunnel_resp_pP, uint8_t *inde_list ){ return 0; } void config_common(int Mod_idP, int pdsch_AntennaPorts, NR_ServingCellConfigCommon_t *scc ); int generate_dlsch_header(unsigned char *mac_header, unsigned char num_sdus, unsigned short *sdu_lengths, unsigned char *sdu_lcids, unsigned char drx_cmd, unsigned short timing_advance_cmd, unsigned char *ue_cont_res_id, unsigned char short_padding, unsigned short post_padding){return 0;} // Dummy function to avoid linking error at compilation of nr-dlsim int is_x2ap_enabled(void) { return 0; } int8_t nr_rrc_ue_decode_NR_SIB1_Message(module_id_t module_id, uint8_t gNB_index, uint8_t *const bufferP, const uint8_t buffer_len) { return 0; } // needed for some functions openair0_config_t openair0_cfg[MAX_CARDS]; void update_ptrs_config(NR_CellGroupConfig_t *secondaryCellGroup, uint16_t *rbSize, uint8_t *mcsIndex,int8_t *ptrs_arg); void update_dmrs_config(NR_CellGroupConfig_t *scg,PHY_VARS_NR_UE *ue, int8_t* dmrs_arg); /* specific dlsim DL preprocessor: uses rbStart/rbSize/mcs from command line of dlsim, does not search for CCE/PUCCH occasion but simply sets to 0 */ int g_mcsIndex = -1, g_mcsTableIdx = 0, g_rbStart = -1, g_rbSize = -1; void nr_dlsim_preprocessor(module_id_t module_id, frame_t frame, sub_frame_t slot, int num_slots_per_tdd) { NR_UE_info_t *UE_info = &RC.nrmac[module_id]->UE_info; AssertFatal(UE_info->num_UEs == 1, "can have only a single UE\n"); NR_UE_sched_ctrl_t *sched_ctrl = &UE_info->UE_sched_ctrl[0]; /* manually set free CCE to 0 */ const int target_ss = NR_SearchSpace__searchSpaceType_PR_ue_Specific; sched_ctrl->search_space = get_searchspace(sched_ctrl->active_bwp, target_ss); uint8_t nr_of_candidates; find_aggregation_candidates(&sched_ctrl->aggregation_level, &nr_of_candidates, sched_ctrl->search_space); sched_ctrl->coreset = get_coreset( sched_ctrl->active_bwp, sched_ctrl->search_space, 1 /* dedicated */); sched_ctrl->cce_index = 0; /* set "any" value for PUCCH (simulator evaluates PDSCH only) */ sched_ctrl->pucch_sched_idx = 0; sched_ctrl->pucch_occ_idx = 0; sched_ctrl->rbStart = g_rbStart; sched_ctrl->rbSize = g_rbSize; sched_ctrl->mcs = g_mcsIndex; sched_ctrl->time_domain_allocation = 2; sched_ctrl->mcsTableIdx = g_mcsTableIdx; AssertFatal(sched_ctrl->rbStart >= 0, "invalid rbStart %d\n", sched_ctrl->rbStart); AssertFatal(sched_ctrl->rbSize > 0, "invalid rbSize %d\n", sched_ctrl->rbSize); AssertFatal(sched_ctrl->mcs >= 0, "invalid sched_ctrl->mcs %d\n", sched_ctrl->mcs); AssertFatal(sched_ctrl->mcsTableIdx >= 0 && sched_ctrl->mcsTableIdx <= 2, "invalid sched_ctrl->mcsTableIdx %d\n", sched_ctrl->mcsTableIdx); sched_ctrl->numDmrsCdmGrpsNoData = 1; } int main(int argc, char **argv) { char c; int i,aa;//,l; double sigma2, sigma2_dB=10, SNR, snr0=-2.0, snr1=2.0; uint8_t snr1set=0; float roundStats[50]; float effRate; //float psnr; float eff_tp_check = 0.7; uint8_t snrRun; uint32_t TBS; int **txdata; double **s_re,**s_im,**r_re,**r_im; //double iqim = 0.0; //unsigned char pbch_pdu[6]; // int sync_pos, sync_pos_slot; // FILE *rx_frame_file; FILE *output_fd = NULL; //uint8_t write_output_file=0; //int result; //int freq_offset; // int subframe_offset; // char fname[40], vname[40]; int trial, n_trials = 1, n_errors = 0, n_false_positive = 0; //int n_errors2, n_alamouti; uint8_t transmission_mode = 1,n_tx=1,n_rx=1; uint8_t round; uint8_t num_rounds = 4; channel_desc_t *gNB2UE; //uint32_t nsymb,tx_lev,tx_lev1 = 0,tx_lev2 = 0; //uint8_t extended_prefix_flag=0; //int8_t interf1=-21,interf2=-21; FILE *input_fd=NULL,*pbch_file_fd=NULL; //char input_val_str[50],input_val_str2[50]; //uint8_t frame_mod4,num_pdcch_symbols = 0; SCM_t channel_model=AWGN;//Rayleigh1_anticorr; NB_UE_INST = 1; //double pbch_sinr; //int pbch_tx_ant; int N_RB_DL=106,mu=1; //unsigned char frame_type = 0; int frame=1,slot=1; int frame_length_complex_samples; //int frame_length_complex_samples_no_prefix; NR_DL_FRAME_PARMS *frame_parms; UE_nr_rxtx_proc_t UE_proc; NR_Sched_Rsp_t Sched_INFO; gNB_MAC_INST *gNB_mac; NR_UE_MAC_INST_t *UE_mac; int cyclic_prefix_type = NFAPI_CP_NORMAL; int run_initial_sync=0; int pusch_tgt_snrx10 = 200; int pucch_tgt_snrx10 = 200; int loglvl=OAILOG_INFO; //float target_error_rate = 0.01; int css_flag=0; cpuf = get_cpu_freq_GHz(); int8_t enable_ptrs = 0; int8_t modify_dmrs = 0; int8_t dmrs_arg[2] = {-1,-1};// Invalid values /* L_PTRS = ptrs_arg[0], K_PTRS = ptrs_arg[1] */ int8_t ptrs_arg[2] = {-1,-1};// Invalid values uint16_t ptrsRePerSymb = 0; uint16_t pdu_bit_map = 0x0; uint16_t dlPtrsSymPos = 0; uint16_t ptrsSymbPerSlot = 0; uint16_t rbSize = 106; uint8_t mcsIndex = 9; uint8_t dlsch_threads = 0; if ( load_configmodule(argc,argv,CONFIG_ENABLECMDLINEONLY) == 0) { exit_fun("[NR_DLSIM] Error, configuration module init failed\n"); } randominit(0); int print_perf = 0; FILE *scg_fd=NULL; while ((c = getopt (argc, argv, "f:hA:pf:g:i:j:n:s:S:t:x:y:z:M:N:F:GR:dPIL:Ea:b:d:e:m:w:T:U:q")) != -1) { switch (c) { case 'f': scg_fd = fopen(optarg,"r"); if (scg_fd==NULL) { printf("Error opening %s\n",optarg); exit(-1); } break; /*case 'd': frame_type = 1; break;*/ case 'g': switch((char)*optarg) { case 'A': channel_model=SCM_A; break; case 'B': channel_model=SCM_B; break; case 'C': channel_model=SCM_C; break; case 'D': channel_model=SCM_D; break; case 'E': channel_model=EPA; break; case 'F': channel_model=EVA; break; case 'G': channel_model=ETU; break; default: printf("Unsupported channel model!\n"); exit(-1); } break; /*case 'i': interf1=atoi(optarg); break; case 'j': interf2=atoi(optarg); break;*/ case 'n': n_trials = atoi(optarg); break; case 's': snr0 = atof(optarg); printf("Setting SNR0 to %f\n",snr0); break; case 'S': snr1 = atof(optarg); snr1set=1; printf("Setting SNR1 to %f\n",snr1); break; /* case 't': Td= atof(optarg); break; */ /*case 'p': extended_prefix_flag=1; break;*/ /* case 'r': ricean_factor = pow(10,-.1*atof(optarg)); if (ricean_factor>1) { printf("Ricean factor must be between 0 and 1\n"); exit(-1); } break; */ case 'x': transmission_mode=atoi(optarg); if ((transmission_mode!=1) && (transmission_mode!=2) && (transmission_mode!=6)) { printf("Unsupported transmission mode %d\n",transmission_mode); exit(-1); } break; case 'y': n_tx=atoi(optarg); if ((n_tx==0) || (n_tx>2)) { printf("Unsupported number of tx antennas %d\n",n_tx); exit(-1); } break; case 'z': n_rx=atoi(optarg); if ((n_rx==0) || (n_rx>2)) { printf("Unsupported number of rx antennas %d\n",n_rx); exit(-1); } break; case 'R': N_RB_DL = atoi(optarg); break; case 'F': input_fd = fopen(optarg,"r"); if (input_fd==NULL) { printf("Problem with filename %s\n",optarg); exit(-1); } break; case 'P': print_perf=1; opp_enabled=1; break; case 'I': run_initial_sync=1; //target_error_rate=0.1; slot = 0; break; case 'L': loglvl = atoi(optarg); break; case 'E': css_flag=1; break; case 'a': g_rbStart = atoi(optarg); break; case 'b': g_rbSize = atoi(optarg); break; case 'd': dlsch_threads = atoi(optarg); break; case 'e': g_mcsIndex = atoi(optarg); break; case 'q': g_mcsTableIdx = 1; get_softmodem_params()->use_256qam_table = 1; break; case 'm': mu = atoi(optarg); break; case 't': eff_tp_check = (float)atoi(optarg)/100; break; case 'w': output_fd = fopen("txdata.dat", "w+"); break; case 'T': enable_ptrs=1; for(i=0; i < atoi(optarg); i++) { ptrs_arg[i] = atoi(argv[optind++]); } break; case 'U': modify_dmrs = 1; for(i=0; i < atoi(optarg); i++) { dmrs_arg[i] = atoi(argv[optind++]); } break; default: case 'h': printf("%s -h(elp) -p(extended_prefix) -N cell_id -f output_filename -F input_filename -g channel_model -n n_frames -t Delayspread -s snr0 -S snr1 -x transmission_mode -y TXant -z RXant -i Intefrence0 -j Interference1 -A interpolation_file -C(alibration offset dB) -N CellId\n", argv[0]); printf("-h This message\n"); //printf("-p Use extended prefix mode\n"); //printf("-d Use TDD\n"); printf("-n Number of frames to simulate\n"); printf("-s Starting SNR, runs from SNR0 to SNR0 + 5 dB. If n_frames is 1 then just SNR is simulated\n"); printf("-S Ending SNR, runs from SNR0 to SNR1\n"); printf("-t Delay spread for multipath channel\n"); printf("-g [A,B,C,D,E,F,G] Use 3GPP SCM (A,B,C,D) or 36-101 (E-EPA,F-EVA,G-ETU) models (ignores delay spread and Ricean factor)\n"); printf("-y Number of TX antennas used in gNB\n"); printf("-z Number of RX antennas used in UE\n"); //printf("-i Relative strength of first intefering gNB (in dB) - cell_id mod 3 = 1\n"); //printf("-j Relative strength of second intefering gNB (in dB) - cell_id mod 3 = 2\n"); printf("-R N_RB_DL\n"); printf("-O oversampling factor (1,2,4,8,16)\n"); printf("-A Interpolation_filname Run with Abstraction to generate Scatter plot using interpolation polynomial in file\n"); //printf("-C Generate Calibration information for Abstraction (effective SNR adjustment to remove Pe bias w.r.t. AWGN)\n"); printf("-f raw file containing RRC configuration (generated by gNB)\n"); printf("-F Input filename (.txt format) for RX conformance testing\n"); printf("-E used CSS scheduler\n"); printf("-o CORESET offset\n"); printf("-a Start PRB for PDSCH\n"); printf("-b Number of PRB for PDSCH\n"); printf("-c Start symbol for PDSCH (fixed for now)\n"); printf("-j Number of symbols for PDSCH (fixed for now)\n"); printf("-e MSC index\n"); printf("-q Use 2nd MCS table (256 QAM table) for PDSCH\n"); printf("-t Acceptable effective throughput (in percentage)\n"); printf("-T Enable PTRS, arguments list L_PTRS{0,1,2} K_PTRS{2,4}, e.g. -T 2 0 2 \n"); printf("-U Change DMRS Config, arguments list DMRS TYPE{0=A,1=B} DMRS AddPos{0:2}, e.g. -U 2 0 2 \n"); printf("-P Print DLSCH performances\n"); printf("-w Write txdata to binary file (one frame)\n"); printf("-d number of dlsch threads, 0: no dlsch parallelization\n"); exit (-1); break; } } logInit(); set_glog(loglvl); T_stdout = 1; /* initialize the sin table */ InitSinLUT(); get_softmodem_params()->phy_test = 1; if (snr1set==0) snr1 = snr0+10; init_dlsch_tpool(dlsch_threads); RC.gNB = (PHY_VARS_gNB**) malloc(sizeof(PHY_VARS_gNB *)); RC.gNB[0] = (PHY_VARS_gNB*) malloc(sizeof(PHY_VARS_gNB )); memset(RC.gNB[0],0,sizeof(PHY_VARS_gNB)); gNB = RC.gNB[0]; frame_parms = &gNB->frame_parms; //to be initialized I suppose (maybe not necessary for PBCH) frame_parms->nb_antennas_tx = n_tx; frame_parms->nb_antennas_rx = n_rx; frame_parms->N_RB_DL = N_RB_DL; frame_parms->N_RB_UL = N_RB_DL; RC.nb_nr_macrlc_inst = 1; RC.nb_nr_mac_CC = (int*)malloc(RC.nb_nr_macrlc_inst*sizeof(int)); for (i = 0; i < RC.nb_nr_macrlc_inst; i++) RC.nb_nr_mac_CC[i] = 1; mac_top_init_gNB(); gNB_mac = RC.nrmac[0]; gNB_mac->pre_processor_dl = nr_dlsim_preprocessor; gNB_RRC_INST rrc; memset((void*)&rrc,0,sizeof(rrc)); /* // read in SCGroupConfig AssertFatal(scg_fd != NULL,"no reconfig.raw file\n"); char buffer[1024]; int msg_len=fread(buffer,1,1024,scg_fd); NR_RRCReconfiguration_t *NR_RRCReconfiguration; printf("Decoding NR_RRCReconfiguration (%d bytes)\n",msg_len); asn_dec_rval_t dec_rval = uper_decode_complete( NULL, &asn_DEF_NR_RRCReconfiguration, (void **)&NR_RRCReconfiguration, (uint8_t *)buffer, msg_len); if ((dec_rval.code != RC_OK) && (dec_rval.consumed == 0)) { AssertFatal(1==0,"NR_RRCReConfiguration decode error\n"); // free the memory SEQUENCE_free( &asn_DEF_NR_RRCReconfiguration, NR_RRCReconfiguration, 1 ); exit(-1); } fclose(scg_fd); AssertFatal(NR_RRCReconfiguration->criticalExtensions.present == NR_RRCReconfiguration__criticalExtensions_PR_rrcReconfiguration,"wrong NR_RRCReconfiguration->criticalExstions.present type\n"); NR_RRCReconfiguration_IEs_t *reconfig_ies = NR_RRCReconfiguration->criticalExtensions.choice.rrcReconfiguration; NR_CellGroupConfig_t *secondaryCellGroup; dec_rval = uper_decode_complete( NULL, &asn_DEF_NR_CellGroupConfig, (void **)&secondaryCellGroup, (uint8_t *)reconfig_ies->secondaryCellGroup->buf, reconfig_ies->secondaryCellGroup->size); if ((dec_rval.code != RC_OK) && (dec_rval.consumed == 0)) { AssertFatal(1==0,"NR_CellGroupConfig decode error\n"); // free the memory SEQUENCE_free( &asn_DEF_NR_CellGroupConfig, secondaryCellGroup, 1 ); exit(-1); } NR_ServingCellConfigCommon_t *scc = secondaryCellGroup->spCellConfig->reconfigurationWithSync->spCellConfigCommon; */ rrc.carrier.servingcellconfigcommon = calloc(1,sizeof(*rrc.carrier.servingcellconfigcommon)); NR_ServingCellConfigCommon_t *scc = rrc.carrier.servingcellconfigcommon; NR_CellGroupConfig_t *secondaryCellGroup=calloc(1,sizeof(*secondaryCellGroup)); prepare_scc(rrc.carrier.servingcellconfigcommon); uint64_t ssb_bitmap; fill_scc(rrc.carrier.servingcellconfigcommon,&ssb_bitmap,N_RB_DL,N_RB_DL,mu,mu); fix_scc(scc,ssb_bitmap); fill_default_secondaryCellGroup(scc, secondaryCellGroup, 0, 1, n_tx, 0); /* -U option modify DMRS */ if(modify_dmrs) { update_dmrs_config(secondaryCellGroup, NULL,dmrs_arg); } /* -T option enable PTRS */ if(enable_ptrs) { update_ptrs_config(secondaryCellGroup, &rbSize, &mcsIndex, ptrs_arg); } //xer_fprint(stdout, &asn_DEF_NR_CellGroupConfig, (const void*)secondaryCellGroup); AssertFatal((gNB->if_inst = NR_IF_Module_init(0))!=NULL,"Cannot register interface"); gNB->if_inst->NR_PHY_config_req = nr_phy_config_request; // common configuration rrc_mac_config_req_gNB(0,0,1,pusch_tgt_snrx10,pucch_tgt_snrx10,scc,0,0,NULL); // UE dedicated configuration rrc_mac_config_req_gNB(0,0,1,pusch_tgt_snrx10,pucch_tgt_snrx10,NULL,1,secondaryCellGroup->spCellConfig->reconfigurationWithSync->newUE_Identity,secondaryCellGroup); phy_init_nr_gNB(gNB,0,0); N_RB_DL = gNB->frame_parms.N_RB_DL; // stub to configure frame_parms // nr_phy_config_request_sim(gNB,N_RB_DL,N_RB_DL,mu,Nid_cell,SSB_positions); // call MAC to configure common parameters /* rrc_mac_config_req_gNB() has created one user, so set the scheduling * parameters from command line in global variables that will be picked up by * scheduling preprocessor */ if (g_mcsIndex < 0) g_mcsIndex = 9; if (g_rbStart < 0) g_rbStart=0; if (g_rbSize < 0) g_rbSize = N_RB_DL - g_rbStart; double fs,bw; if (mu == 1 && N_RB_DL == 217) { fs = 122.88e6; bw = 80e6; } else if (mu == 1 && N_RB_DL == 245) { fs = 122.88e6; bw = 90e6; } else if (mu == 1 && N_RB_DL == 273) { fs = 122.88e6; bw = 100e6; } else if (mu == 1 && N_RB_DL == 106) { fs = 61.44e6; bw = 40e6; } else if (mu == 3 && N_RB_DL == 66) { fs = 122.88e6; bw = 100e6; } else if (mu == 3 && N_RB_DL == 32) { fs = 61.44e6; bw = 50e6; } else AssertFatal(1==0,"Unsupported numerology for mu %d, N_RB %d\n",mu, N_RB_DL); gNB2UE = new_channel_desc_scm(n_tx, n_rx, channel_model, fs, bw, 30e-9, 0, 0, 0); if (gNB2UE==NULL) { printf("Problem generating channel model. Exiting.\n"); exit(-1); } frame_length_complex_samples = frame_parms->samples_per_subframe*NR_NUMBER_OF_SUBFRAMES_PER_FRAME; //frame_length_complex_samples_no_prefix = frame_parms->samples_per_subframe_wCP*NR_NUMBER_OF_SUBFRAMES_PER_FRAME; s_re = malloc(2*sizeof(double*)); s_im = malloc(2*sizeof(double*)); r_re = malloc(2*sizeof(double*)); r_im = malloc(2*sizeof(double*)); txdata = malloc(2*sizeof(int*)); for (i=0; i<2; i++) { s_re[i] = malloc(frame_length_complex_samples*sizeof(double)); bzero(s_re[i],frame_length_complex_samples*sizeof(double)); s_im[i] = malloc(frame_length_complex_samples*sizeof(double)); bzero(s_im[i],frame_length_complex_samples*sizeof(double)); r_re[i] = malloc(frame_length_complex_samples*sizeof(double)); bzero(r_re[i],frame_length_complex_samples*sizeof(double)); r_im[i] = malloc(frame_length_complex_samples*sizeof(double)); bzero(r_im[i],frame_length_complex_samples*sizeof(double)); printf("Allocating %d samples for txdata\n",frame_length_complex_samples); txdata[i] = malloc(frame_length_complex_samples*sizeof(int)); bzero(txdata[i],frame_length_complex_samples*sizeof(int)); } if (pbch_file_fd!=NULL) { load_pbch_desc(pbch_file_fd); } //configure UE UE = malloc(sizeof(PHY_VARS_NR_UE)); memset((void*)UE,0,sizeof(PHY_VARS_NR_UE)); PHY_vars_UE_g = malloc(sizeof(PHY_VARS_NR_UE**)); PHY_vars_UE_g[0] = malloc(sizeof(PHY_VARS_NR_UE*)); PHY_vars_UE_g[0][0] = UE; memcpy(&UE->frame_parms,frame_parms,sizeof(NR_DL_FRAME_PARMS)); if (run_initial_sync==1) UE->is_synchronized = 0; else {UE->is_synchronized = 1; UE->UE_mode[0]=PUSCH;} UE->perfect_ce = 0; if (init_nr_ue_signal(UE, 1, 0) != 0) { printf("Error at UE NR initialisation\n"); exit(-1); } if(modify_dmrs) { update_dmrs_config( NULL,UE,dmrs_arg); } init_nr_ue_transport(UE,0); nr_gold_pbch(UE); nr_gold_pdcch(UE,0,2); nr_l2_init_ue(NULL); UE_mac = get_mac_inst(0); UE->if_inst = nr_ue_if_module_init(0); UE->if_inst->scheduled_response = nr_ue_scheduled_response; UE->if_inst->phy_config_request = nr_ue_phy_config_request; UE->if_inst->dl_indication = nr_ue_dl_indication; UE->if_inst->ul_indication = dummy_nr_ue_ul_indication; UE_mac->if_module = nr_ue_if_module_init(0); unsigned int available_bits=0; unsigned char *estimated_output_bit; unsigned char *test_input_bit; unsigned int errors_bit = 0; uint32_t errors_scrambling = 0; test_input_bit = (unsigned char *) malloc16(sizeof(unsigned char) * 16 * 68 * 384); estimated_output_bit = (unsigned char *) malloc16(sizeof(unsigned char) * 16 * 68 * 384); // generate signal AssertFatal(input_fd==NULL,"Not ready for input signal file\n"); gNB->pbch_configured = 1; gNB->ssb_pdu.ssb_pdu_rel15.bchPayload=0x001234; //Configure UE rrc.carrier.MIB = (uint8_t*) malloc(4); rrc.carrier.sizeof_MIB = do_MIB_NR(&rrc,0); nr_rrc_mac_config_req_ue(0,0,0,rrc.carrier.mib.message.choice.mib,secondaryCellGroup); nr_dcireq_t dcireq; nr_scheduled_response_t scheduled_response; memset((void*)&dcireq,0,sizeof(dcireq)); memset((void*)&scheduled_response,0,sizeof(scheduled_response)); dcireq.module_id = 0; dcireq.gNB_index = 0; dcireq.cc_id = 0; scheduled_response.dl_config = &dcireq.dl_config_req; scheduled_response.ul_config = &dcireq.ul_config_req; scheduled_response.tx_request = NULL; scheduled_response.module_id = 0; scheduled_response.CC_id = 0; scheduled_response.frame = frame; scheduled_response.slot = slot; scheduled_response.thread_id = UE_proc.thread_id; nr_ue_phy_config_request(&UE_mac->phy_config); NR_UE_info_t *UE_info = &RC.nrmac[0]->UE_info; //NR_COMMON_channels_t *cc = RC.nrmac[0]->common_channels; snrRun = 0; for (SNR = snr0; SNR < snr1; SNR += .2) { varArray_t *table_tx=initVarArray(1000,sizeof(double)); reset_meas(&gNB->phy_proc_tx); // total gNB tx reset_meas(&gNB->dlsch_scrambling_stats); reset_meas(&gNB->dlsch_interleaving_stats); reset_meas(&gNB->dlsch_rate_matching_stats); reset_meas(&gNB->dlsch_segmentation_stats); reset_meas(&gNB->dlsch_modulation_stats); reset_meas(&gNB->dlsch_encoding_stats); reset_meas(&gNB->tinput); reset_meas(&gNB->tprep); reset_meas(&gNB->tparity); reset_meas(&gNB->toutput); clear_pdsch_stats(gNB); n_errors = 0; effRate = 0; //n_errors2 = 0; //n_alamouti = 0; errors_scrambling=0; n_false_positive = 0; if (n_trials== 1) num_rounds = 1; for (trial = 0; trial < n_trials; trial++) { errors_bit = 0; //multipath channel //multipath_channel(gNB2UE,s_re,s_im,r_re,r_im,frame_length_complex_samples,0); UE->rx_offset=0; UE_proc.thread_id = 0; UE_proc.frame_rx = frame; UE_proc.nr_slot_rx = slot; dcireq.frame = frame; dcireq.slot = slot; NR_UE_DLSCH_t *dlsch0 = UE->dlsch[UE_proc.thread_id][0][0]; int harq_pid = slot; NR_DL_UE_HARQ_t *UE_harq_process = dlsch0->harq_processes[harq_pid]; NR_gNB_DLSCH_t *gNB_dlsch = gNB->dlsch[0][0]; nfapi_nr_dl_tti_pdsch_pdu_rel15_t *rel15 = &gNB_dlsch->harq_processes[slot]->pdsch_pdu.pdsch_pdu_rel15; UE_harq_process->harq_ack.ack = 0; round = 0; UE_harq_process->round = round; UE_harq_process->first_tx = 1; while ((round<num_rounds) && (UE_harq_process->harq_ack.ack==0)) { memset(RC.nrmac[0]->cce_list[1][0],0,MAX_NUM_CCE*sizeof(int)); memset(RC.nrmac[0]->cce_list[1][1],0,MAX_NUM_CCE*sizeof(int)); clear_nr_nfapi_information(RC.nrmac[0], 0, frame, slot); UE_info->UE_sched_ctrl[0].harq_processes[harq_pid].ndi = !(trial&1); UE_info->UE_sched_ctrl[0].harq_processes[harq_pid].round = round; gNB->dlsch[0][0]->harq_processes[harq_pid]->round = round; for (int i=0; i<MAX_NUM_CORESET; i++) gNB_mac->UE_info.num_pdcch_cand[0][i] = 0; if (css_flag == 0) { const uint8_t slots_per_frame[5] = {10, 20, 40, 80, 160}; const NR_TDD_UL_DL_Pattern_t *tdd_pattern = &scc->tdd_UL_DL_ConfigurationCommon->pattern1; const int num_slots_per_tdd = slots_per_frame[*scc->ssbSubcarrierSpacing] >> (7 - tdd_pattern->dl_UL_TransmissionPeriodicity); nr_schedule_ue_spec(0, frame, slot, num_slots_per_tdd); } else { nr_schedule_css_dlsch_phytest(0,frame,slot); } Sched_INFO.module_id = 0; Sched_INFO.CC_id = 0; Sched_INFO.frame = frame; Sched_INFO.slot = slot; Sched_INFO.DL_req = &gNB_mac->DL_req[0]; Sched_INFO.UL_tti_req = gNB_mac->UL_tti_req_ahead[slot]; Sched_INFO.UL_dci_req = NULL; Sched_INFO.TX_req = &gNB_mac->TX_req[0]; nr_schedule_response(&Sched_INFO); /* PTRS values for DLSIM calculations */ nfapi_nr_dl_tti_request_body_t *dl_req = &gNB_mac->DL_req[Sched_INFO.CC_id].dl_tti_request_body; nfapi_nr_dl_tti_request_pdu_t *dl_tti_pdsch_pdu = &dl_req->dl_tti_pdu_list[1]; nfapi_nr_dl_tti_pdsch_pdu_rel15_t *pdsch_pdu_rel15 = &dl_tti_pdsch_pdu->pdsch_pdu.pdsch_pdu_rel15; pdu_bit_map = pdsch_pdu_rel15->pduBitmap; if(pdu_bit_map & 0x1) { set_ptrs_symb_idx(&dlPtrsSymPos, pdsch_pdu_rel15->NrOfSymbols, pdsch_pdu_rel15->StartSymbolIndex, 1<<pdsch_pdu_rel15->PTRSTimeDensity, pdsch_pdu_rel15->dlDmrsSymbPos); ptrsSymbPerSlot = get_ptrs_symbols_in_slot(dlPtrsSymPos, pdsch_pdu_rel15->StartSymbolIndex, pdsch_pdu_rel15->NrOfSymbols); ptrsRePerSymb = ((rel15->rbSize + rel15->PTRSFreqDensity - 1)/rel15->PTRSFreqDensity); printf("[DLSIM] PTRS Symbols in a slot: %2u, RE per Symbol: %3u, RE in a slot %4d\n", ptrsSymbPerSlot,ptrsRePerSymb, ptrsSymbPerSlot*ptrsRePerSymb ); } if (run_initial_sync) nr_common_signal_procedures(gNB,frame,slot); else phy_procedures_gNB_TX(gNB,frame,slot,0); int txdataF_offset = (slot%2) * frame_parms->samples_per_slot_wCP; if (n_trials==1) { LOG_M("txsigF0.m","txsF0", &gNB->common_vars.txdataF[0][txdataF_offset],frame_parms->samples_per_slot_wCP,1,1); if (gNB->frame_parms.nb_antennas_tx>1) LOG_M("txsigF1.m","txsF1", &gNB->common_vars.txdataF[1][txdataF_offset],frame_parms->samples_per_slot_wCP,1,1); } int tx_offset = frame_parms->get_samples_slot_timestamp(slot,frame_parms,0); if (n_trials==1) printf("tx_offset %d, txdataF_offset %d \n", tx_offset,txdataF_offset); //TODO: loop over slots for (aa=0; aa<gNB->frame_parms.nb_antennas_tx; aa++) { if (cyclic_prefix_type == 1) { PHY_ofdm_mod(&gNB->common_vars.txdataF[aa][txdataF_offset], &txdata[aa][tx_offset], frame_parms->ofdm_symbol_size, 12, frame_parms->nb_prefix_samples, CYCLIC_PREFIX); } else { nr_normal_prefix_mod(&gNB->common_vars.txdataF[aa][txdataF_offset], &txdata[aa][tx_offset], 14, frame_parms); } } if (n_trials==1) { LOG_M("txsig0.m","txs0", &txdata[0][tx_offset],frame_parms->get_samples_slot_timestamp(slot,frame_parms,0),1,1); if (gNB->frame_parms.nb_antennas_tx>1) LOG_M("txsig1.m","txs1", &txdata[1][tx_offset],frame_parms->get_samples_slot_timestamp(slot,frame_parms,0),1,1); } if (output_fd) { printf("writing txdata to binary file\n"); fwrite(txdata[0],sizeof(int32_t),frame_length_complex_samples,output_fd); } int txlev = signal_energy(&txdata[0][frame_parms->get_samples_slot_timestamp(slot,frame_parms,0)+5*frame_parms->ofdm_symbol_size + 4*frame_parms->nb_prefix_samples + frame_parms->nb_prefix_samples0], frame_parms->ofdm_symbol_size + frame_parms->nb_prefix_samples); // if (n_trials==1) printf("txlev %d (%f)\n",txlev,10*log10((double)txlev)); for (i=(frame_parms->get_samples_slot_timestamp(slot,frame_parms,0)); i<(frame_parms->get_samples_slot_timestamp(slot+1,frame_parms,0)); i++) { for (aa=0; aa<frame_parms->nb_antennas_tx; aa++) { r_re[aa][i] = ((double)(((short *)txdata[aa]))[(i<<1)]); r_im[aa][i] = ((double)(((short *)txdata[aa]))[(i<<1)+1]); } } double ts = 1.0/(frame_parms->subcarrier_spacing * frame_parms->ofdm_symbol_size); //AWGN sigma2_dB = 10 * log10((double)txlev * ((double)UE->frame_parms.ofdm_symbol_size/(12*rel15->rbSize))) - SNR; sigma2 = pow(10, sigma2_dB/10); if (n_trials==1) printf("sigma2 %f (%f dB), txlev %f (factor %f)\n",sigma2,sigma2_dB,10*log10((double)txlev),(double)(double)UE->frame_parms.ofdm_symbol_size/(12*rel15->rbSize)); for (i=frame_parms->get_samples_slot_timestamp(slot,frame_parms,0); i<frame_parms->get_samples_slot_timestamp(slot+1,frame_parms,0); i++) { for (aa=0; aa<frame_parms->nb_antennas_rx; aa++) { ((short*) UE->common_vars.rxdata[aa])[2*i] = (short) ((r_re[aa][i] + sqrt(sigma2/2)*gaussdouble(0.0,1.0))); ((short*) UE->common_vars.rxdata[aa])[2*i+1] = (short) ((r_im[aa][i] + sqrt(sigma2/2)*gaussdouble(0.0,1.0))); /* Add phase noise if enabled */ if (pdu_bit_map & 0x1) { phase_noise(ts, &((short*) UE->common_vars.rxdata[aa])[2*i], &((short*) UE->common_vars.rxdata[aa])[2*i+1]); } } } nr_ue_dcireq(&dcireq); //to be replaced with function pointer later nr_ue_scheduled_response(&scheduled_response); phy_procedures_nrUE_RX(UE, &UE_proc, 0, normal_txrx, dlsch_threads); //printf("dlsim round %d ends\n",round); round++; } // round //---------------------------------------------------------- //---------------------- count errors ---------------------- //---------------------------------------------------------- if (UE->dlsch[UE_proc.thread_id][0][0]->last_iteration_cnt >= UE->dlsch[UE_proc.thread_id][0][0]->max_ldpc_iterations+1) n_errors++; NR_UE_PDSCH **pdsch_vars = UE->pdsch_vars[UE_proc.thread_id]; int16_t *UE_llr = pdsch_vars[0]->llr[0]; TBS = UE_harq_process->TBS;//rel15->TBSize[0]; uint16_t length_dmrs = get_num_dmrs(rel15->dlDmrsSymbPos); uint16_t nb_rb = rel15->rbSize; uint8_t nb_re_dmrs = rel15->dmrsConfigType == NFAPI_NR_DMRS_TYPE1 ? 6 : 4; uint8_t mod_order = rel15->qamModOrder[0]; uint8_t nb_symb_sch = rel15->NrOfSymbols; available_bits = nr_get_G(nb_rb, nb_symb_sch, nb_re_dmrs, length_dmrs, mod_order, rel15->nrOfLayers); if(pdu_bit_map & 0x1) { available_bits-= (ptrsSymbPerSlot * ptrsRePerSymb *rel15->nrOfLayers* 2); printf("[DLSIM][PTRS] Available bits are: %5u, removed PTRS bits are: %5u \n",available_bits, (ptrsSymbPerSlot * ptrsRePerSymb *rel15->nrOfLayers* 2) ); } for (i = 0; i < available_bits; i++) { if(((gNB_dlsch->harq_processes[harq_pid]->f[i] == 0) && (UE_llr[i] <= 0)) || ((gNB_dlsch->harq_processes[harq_pid]->f[i] == 1) && (UE_llr[i] >= 0))) { if(errors_scrambling == 0) { LOG_D(PHY,"\n"); LOG_D(PHY,"First bit in error in unscrambling = %d\n",i); } errors_scrambling++; } } for (i = 0; i < TBS; i++) { estimated_output_bit[i] = (UE_harq_process->b[i/8] & (1 << (i & 7))) >> (i & 7); test_input_bit[i] = (gNB_dlsch->harq_processes[harq_pid]->b[i / 8] & (1 << (i & 7))) >> (i & 7); // Further correct for multiple segments if (estimated_output_bit[i] != test_input_bit[i]) { if(errors_bit == 0) LOG_D(PHY,"First bit in error in decoding = %d (errors scrambling %d)\n",i,errors_scrambling); errors_bit++; } } //////////////////////////////////////////////////////////// if (errors_scrambling > 0) { if (n_trials == 1) printf("errors_scrambling = %u/%u (trial %d)\n", errors_scrambling, available_bits,trial); } if (errors_bit > 0) { n_false_positive++; if (n_trials == 1) printf("errors_bit = %u (trial %d)\n", errors_bit, trial); } roundStats[snrRun]+=((float)round); if (UE_harq_process->harq_ack.ack==1) effRate += ((float)TBS)/round; } // noise trials roundStats[snrRun]/=((float)n_trials); effRate /= n_trials; printf("*****************************************\n"); printf("SNR %f, (false positive %f)\n", SNR, (float) n_errors / (float) n_trials); printf("*****************************************\n"); printf("\n"); dump_pdsch_stats(gNB); printf("SNR %f : n_errors (negative CRC) = %d/%d, Avg round %.2f, Channel BER %e, Eff Rate %.4f bits/slot, Eff Throughput %.2f, TBS %u bits/slot\n", SNR, n_errors, n_trials,roundStats[snrRun],(double)errors_scrambling/available_bits/n_trials,effRate,effRate/TBS*100,TBS); printf("\n"); if (print_perf==1) { printf("\ngNB TX function statistics (per %d us slot, NPRB %d, mcs %d, TBS %d, Kr %d (Zc %d))\n", 1000>>*scc->ssbSubcarrierSpacing, g_rbSize, g_mcsIndex, gNB->dlsch[0][0]->harq_processes[0]->pdsch_pdu.pdsch_pdu_rel15.TBSize[0]<<3, gNB->dlsch[0][0]->harq_processes[0]->K, gNB->dlsch[0][0]->harq_processes[0]->K/((gNB->dlsch[0][0]->harq_processes[0]->pdsch_pdu.pdsch_pdu_rel15.TBSize[0]<<3)>3824?22:10)); printDistribution(&gNB->phy_proc_tx,table_tx,"PHY proc tx"); printStatIndent2(&gNB->dlsch_encoding_stats,"DLSCH encoding time"); printStatIndent3(&gNB->dlsch_segmentation_stats,"DLSCH segmentation time"); printStatIndent3(&gNB->tinput,"DLSCH LDPC input processing time"); printStatIndent3(&gNB->tprep,"DLSCH LDPC input preparation time"); printStatIndent3(&gNB->tparity,"DLSCH LDPC parity generation time"); printStatIndent3(&gNB->toutput,"DLSCH LDPC output generation time"); printStatIndent3(&gNB->dlsch_rate_matching_stats,"DLSCH Rate Mataching time"); printStatIndent3(&gNB->dlsch_interleaving_stats, "DLSCH Interleaving time"); printStatIndent2(&gNB->dlsch_modulation_stats,"DLSCH modulation time"); printStatIndent2(&gNB->dlsch_scrambling_stats, "DLSCH scrambling time"); printf("\nUE RX function statistics (per %d us slot)\n",1000>>*scc->ssbSubcarrierSpacing); /* printDistribution(&phy_proc_rx_tot, table_rx,"Total PHY proc rx"); printStatIndent(&ue_front_end_tot,"Front end processing"); printStatIndent(&dlsch_llr_tot,"rx_pdsch processing"); printStatIndent2(&pdsch_procedures_tot,"pdsch processing"); printStatIndent2(&dlsch_procedures_tot,"dlsch processing"); printStatIndent2(&UE->crnti_procedures_stats,"C-RNTI processing"); printStatIndent(&UE->ofdm_demod_stats,"ofdm demodulation"); printStatIndent(&UE->dlsch_channel_estimation_stats,"DLSCH channel estimation time"); printStatIndent(&UE->dlsch_freq_offset_estimation_stats,"DLSCH frequency offset estimation time"); printStatIndent(&dlsch_decoding_tot, "DLSCH Decoding time "); printStatIndent(&UE->dlsch_unscrambling_stats,"DLSCH unscrambling time"); printStatIndent(&UE->dlsch_rate_unmatching_stats,"DLSCH Rate Unmatching"); printf("|__ DLSCH Turbo Decoding(%d bits), avg iterations: %.1f %.2f us (%d cycles, %d trials)\n", UE->dlsch[UE_proc.thread_id][0][0]->harq_processes[0]->Cminus ? UE->dlsch[UE_proc.thread_id][0][0]->harq_processes[0]->Kminus : UE->dlsch[UE_proc.thread_id][0][0]->harq_processes[0]->Kplus, UE->dlsch_tc_intl1_stats.trials/(double)UE->dlsch_tc_init_stats.trials, (double)UE->dlsch_turbo_decoding_stats.diff/UE->dlsch_turbo_decoding_stats.trials*timeBase, (int)((double)UE->dlsch_turbo_decoding_stats.diff/UE->dlsch_turbo_decoding_stats.trials), UE->dlsch_turbo_decoding_stats.trials); printStatIndent2(&UE->dlsch_tc_init_stats,"init"); printStatIndent2(&UE->dlsch_tc_alpha_stats,"alpha"); printStatIndent2(&UE->dlsch_tc_beta_stats,"beta"); printStatIndent2(&UE->dlsch_tc_gamma_stats,"gamma"); printStatIndent2(&UE->dlsch_tc_ext_stats,"ext"); printStatIndent2(&UE->dlsch_tc_intl1_stats,"turbo internal interleaver"); printStatIndent2(&UE->dlsch_tc_intl2_stats,"intl2+HardDecode+CRC"); */ } if (n_trials == 1) { LOG_M("rxsig0.m","rxs0", UE->common_vars.rxdata[0], frame_length_complex_samples, 1, 1); if (UE->frame_parms.nb_antennas_rx>1) LOG_M("rxsig1.m","rxs1", UE->common_vars.rxdata[1], frame_length_complex_samples, 1, 1); LOG_M("chestF0.m","chF0",UE->pdsch_vars[0][0]->dl_ch_estimates_ext,N_RB_DL*12*14,1,1); write_output("rxF_comp.m","rxFc",&UE->pdsch_vars[0][0]->rxdataF_comp0[0][0],N_RB_DL*12*14,1,1); LOG_M("rxF_llr.m","rxFllr",UE->pdsch_vars[UE_proc.thread_id][0]->llr[0],available_bits,1,0); break; } //if ((float)n_errors/(float)n_trials <= target_error_rate) { if (effRate > (eff_tp_check*TBS)) { printf("PDSCH test OK\n"); break; } snrRun++; } // NSR /*if (n_trials>1) { printf("HARQ stats:\nSNR\tRounds\n"); psnr = snr0; for (uint8_t i=0; i<snrRun; i++) { printf("%.1f\t%.2f\n",psnr,roundStats[i]); psnr+=0.2; } }*/ for (i = 0; i < 2; i++) { free(s_re[i]); free(s_im[i]); free(r_re[i]); free(r_im[i]); free(txdata[i]); } free(s_re); free(s_im); free(r_re); free(r_im); free(txdata); free(test_input_bit); free(estimated_output_bit); if (output_fd) fclose(output_fd); if (input_fd) fclose(input_fd); if (scg_fd) fclose(scg_fd); return(n_errors); } void update_ptrs_config(NR_CellGroupConfig_t *secondaryCellGroup, uint16_t *rbSize, uint8_t *mcsIndex, int8_t *ptrs_arg) { NR_BWP_Downlink_t *bwp=secondaryCellGroup->spCellConfig->spCellConfigDedicated->downlinkBWP_ToAddModList->list.array[0]; int *ptrsFreqDenst = calloc(2, sizeof(long)); ptrsFreqDenst[0]= 25; ptrsFreqDenst[1]= 115; int *ptrsTimeDenst = calloc(3, sizeof(long)); ptrsTimeDenst[0]= 2; ptrsTimeDenst[1]= 4; ptrsTimeDenst[2]= 10; int epre_Ratio = 0; int reOffset = 0; if(ptrs_arg[0] ==0) { ptrsTimeDenst[2]= *mcsIndex -1; } else if(ptrs_arg[0] == 1) { ptrsTimeDenst[1]= *mcsIndex - 1; ptrsTimeDenst[2]= *mcsIndex + 1; } else if(ptrs_arg[0] ==2) { ptrsTimeDenst[0]= *mcsIndex - 1; ptrsTimeDenst[1]= *mcsIndex + 1; } else { printf("[DLSIM] Wrong L_PTRS value, using default values 1\n"); } /* L = 4 if Imcs < MCS4 */ if(ptrs_arg[1] ==2) { ptrsFreqDenst[0]= *rbSize - 1; ptrsFreqDenst[1]= *rbSize + 1; } else if(ptrs_arg[1] == 4) { ptrsFreqDenst[1]= *rbSize - 1; } else { printf("[DLSIM] Wrong K_PTRS value, using default values 2\n"); } printf("[DLSIM] PTRS Enabled with L %d, K %d \n", 1<<ptrs_arg[0], ptrs_arg[1] ); /* overwrite the values */ rrc_config_dl_ptrs_params(bwp, ptrsFreqDenst, ptrsTimeDenst, &epre_Ratio, &reOffset); } void update_dmrs_config(NR_CellGroupConfig_t *scg,PHY_VARS_NR_UE *ue, int8_t* dmrs_arg) { int8_t mapping_type = typeA;//default value int8_t add_pos = pdsch_dmrs_pos0;//default value if(dmrs_arg[0] == 0) { mapping_type = typeA; } else if (dmrs_arg[0] == 1) { mapping_type = typeB; } /* Additional DMRS positions 0 ,1 and 2 */ if(dmrs_arg[1] >= 0 && dmrs_arg[1] <3 ) { add_pos = dmrs_arg[1]; } if(scg != NULL) { NR_BWP_Downlink_t *bwp = scg->spCellConfig->spCellConfigDedicated->downlinkBWP_ToAddModList->list.array[0]; *bwp->bwp_Dedicated->pdsch_Config->choice.setup->dmrs_DownlinkForPDSCH_MappingTypeA->choice.setup->dmrs_AdditionalPosition = add_pos; for (int i=0;i<bwp->bwp_Common->pdsch_ConfigCommon->choice.setup->pdsch_TimeDomainAllocationList->list.count;i++) { bwp->bwp_Common->pdsch_ConfigCommon->choice.setup->pdsch_TimeDomainAllocationList->list.array[i]->mappingType = mapping_type; } } if(ue != NULL) { for (int i=0;i<MAX_NR_OF_DL_ALLOCATIONS;i++) { ue->PDSCH_Config.pdsch_TimeDomainResourceAllocation[i]->mappingType = mapping_type; } ue->dmrs_DownlinkConfig.pdsch_dmrs_AdditionalPosition = add_pos; } printf("[DLSIM] DMRS Config is modified with Mapping Type %d, Additional Positions %d \n", dmrs_arg[0], dmrs_arg[1] ); }