/* * 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 #include #include #include #include #include #include "common/config/config_userapi.h" #include "common/utils/load_module_shlib.h" #include "common/utils/nr/nr_common.h" #include "common/utils/LOG/log.h" #include "common/ran_context.h" #include "PHY/types.h" #include "PHY/defs_nr_common.h" #include "PHY/defs_nr_UE.h" #include "PHY/defs_gNB.h" #include "PHY/NR_REFSIG/refsig_defs_ue.h" #include "PHY/MODULATION/modulation_eNB.h" #include "PHY/MODULATION/modulation_UE.h" #include "PHY/NR_ESTIMATION/nr_ul_estimation.h" #include "PHY/INIT/nr_phy_init.h" #include "PHY/NR_TRANSPORT/nr_transport_proto.h" #include "PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h" #include "PHY/NR_UE_TRANSPORT/pucch_nr.h" #include "SCHED_NR/sched_nr.h" #include "openair1/SIMULATION/TOOLS/sim.h" #include "openair1/SIMULATION/RF/rf.h" #include "openair1/SIMULATION/NR_PHY/nr_unitary_defs.h" #include "executables/nr-uesoftmodem.h" #include "nfapi/oai_integration/vendor_ext.h" #include "executables/softmodem-common.h" THREAD_STRUCT thread_struct; PHY_VARS_gNB *gNB; PHY_VARS_NR_UE *UE; RAN_CONTEXT_t RC; openair0_config_t openair0_cfg[MAX_CARDS]; int32_t uplink_frequency_offset[MAX_NUM_CCs][4]; uint64_t downlink_frequency[MAX_NUM_CCs][4]; double cpuf; uint8_t const nr_rv_round_map[4] = {0, 2, 3, 1}; // needed for some functions PHY_VARS_NR_UE *PHY_vars_UE_g[1][1] = {{NULL}}; static softmodem_params_t softmodem_params; softmodem_params_t *get_softmodem_params(void) { return &softmodem_params; } void init_downlink_harq_status(NR_DL_UE_HARQ_t *dl_harq) {} NR_IF_Module_t *NR_IF_Module_init(int Mod_id) { return (NULL); } nfapi_mode_t nfapi_getmode(void) { return NFAPI_MODE_UNKNOWN; } void inc_ref_sched_response(int _) { LOG_E(PHY, "fatal\n"); exit(1); } void deref_sched_response(int _) { LOG_E(PHY, "fatal\n"); exit(1); } nrUE_params_t nrUE_params={0}; nrUE_params_t *get_nrUE_params(void) { return &nrUE_params; } configmodule_interface_t *uniqCfg = NULL; int main(int argc, char **argv) { stop = false; __attribute__((unused)) struct sigaction oldaction; sigaction(SIGINT, &sigint_action, &oldaction); int i;//,l; double SNR, snr0 = -2.0, snr1 = 2.0; double cfo=0; uint8_t snr1set=0; double **s_re,**s_im,**r_re,**r_im; //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=100,n_errors=0,ack_nack_errors=0,sr_errors=0; int ret = 1; uint8_t transmission_mode = 1,n_tx=1,n_rx=1; uint16_t Nid_cell=0; uint64_t SSB_positions=0x01; channel_desc_t *UE2gNB; int format=0; //uint8_t extended_prefix_flag=0; FILE *input_fd=NULL; //uint8_t nacktoack_flag=0; int16_t amp=0x7FFF; int nr_slot_tx=0; int nr_frame_tx=0; uint64_t actual_payload = 0, payload_received = 0; bool random_payload = true; int nr_bit=1; // maximum value possible is 2 uint8_t m0=0;// higher layer paramater initial cyclic shift uint8_t nrofSymbols=1; //number of OFDM symbols can be 1-2 for format 1 uint8_t startingSymbolIndex=0; // resource allocated see 9.2.1, 38.213 for more info.should be actually present in the resource set provided uint16_t startingPRB=0,startingPRB_intraSlotHopping=0; //PRB number not sure see 9.2.1, 38.213 for more info. Should be actually present in the resource set provided uint16_t nrofPRB=2; uint8_t timeDomainOCC=0; SCM_t channel_model=AWGN;//Rayleigh1_anticorr; double DS_TDL = .03; double delay_us = 0; int N_RB_DL=273,mu=1; float target_error_rate=0.001; int frame_length_complex_samples; //int frame_length_complex_samples_no_prefix; NR_DL_FRAME_PARMS *frame_parms; //unsigned char frame_type = 0; int loglvl=OAILOG_WARNING; int sr_flag = 0; int pucch_DTX_thres = 0; cpuf = get_cpu_freq_GHz(); bool print_perf = false; if ((uniqCfg = load_configmodule(argc, argv, CONFIG_ENABLECMDLINEONLY)) == 0) { exit_fun("[NR_PUCCHSIM] Error, configuration module init failed\n"); } randominit(); logInit(); int c; while ((c = getopt(argc, argv, "--:O:f:hA:f:g:i:I:P:B:b:t:T:m:n:r:o:s:S:x:y:z:N:F:GR:IL:q:cd:C")) != -1) { /* ignore long options starting with '--', option '-O' and their arguments that are handled by configmodule */ /* with this opstring getopt returns 1 for non-option arguments, refer to 'man 3 getopt' */ if (c == 1 || c == '-' || c == 'O') continue; printf("handling optarg %c\n",c); switch (c) { case 'f': //write_output_file=1; output_fd = fopen(optarg,"w"); if (output_fd==NULL) { printf("Error opening %s\n",optarg); exit(-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; case 'H': channel_model = TDL_C; DS_TDL = .030; // 30 ns break; case 'I': channel_model = TDL_C; DS_TDL = .3; // 300ns break; case 'J': channel_model=TDL_D; DS_TDL = .03; break; default: printf("Unsupported channel model!\n"); exit(-1); } break; case 'n': n_trials = atoi(optarg); break; case 'o': cfo = atof(optarg); printf("Setting CFO to %f Hz\n",cfo); 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': pucch_DTX_thres= atoi(optarg); break; /* case 'p': extended_prefix_flag=1; break; case 'd': frame_type = 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 'd': delay_us=atof(optarg); 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>8)) { printf("Unsupported number of rx antennas %d\n",n_rx); exit(-1); } break; case 'N': Nid_cell = atoi(optarg); 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 'L': loglvl = atoi(optarg); break; case 'i': nrofSymbols=(uint8_t)atoi(optarg); break; case 'I': startingSymbolIndex=(uint8_t)atoi(optarg); break; case 'r': startingPRB=atoi(optarg); break; case 'q': nrofPRB=atoi(optarg); break; case 'P': format=atoi(optarg); break; case 'm': m0=atoi(optarg); break; case 'b': nr_bit=atoi(optarg); break; case 'c': sr_flag=1; break; case 'B': actual_payload=atoi(optarg); random_payload = false; break; case 'T': //nacktoack_flag=(uint8_t)atoi(optarg); target_error_rate=0.001; break; case 'C': print_perf = 1; cpu_meas_enabled = 1; 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("-C Generate Calibration information for Abstraction (effective SNR adjustment to remove Pe bias w.r.t. AWGN)\n"); printf("-A Interpolation_filname Run with Abstraction to generate Scatter plot using interpolation polynomial in file\n"); printf("-b number of HARQ bits (1-2)\n"); printf("-B payload to be transmitted on PUCCH\n"); printf("-c Activate scheduling request\n"); printf("-d Use TDD\n"); printf("-f Output filename (.txt format) for Pe/SNR results\n"); printf("-F Input filename (.txt format) for RX conformance testing\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("-i Enter number of ofdm symbols for pucch\n"); printf("-I Starting symbol index for pucch\n"); printf("-h This message\n"); printf("-m initial cyclic shift m0\n"); printf("-n Number of frames to simulate\n"); printf("-N Nid_cell\n"); printf("-o Carrier frequency offset in Hz\n"); printf("-O oversampling factor (1,2,4,8,16)\n"); printf("-p Use extended prefix mode\n"); printf("-P Enter the format of PUCCH\n"); printf("-q PUCCH number of PRB\n"); printf("-r PUCCH starting PRB\n"); printf("-R N_RB_DL\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("-T to check nacktoack miss for format 1\n"); printf("-x Transmission mode (1,2,6 for the moment)\n"); printf("-y Number of TX antennas used in eNB\n"); printf("-z Number of RX antennas used in UE\n"); printf("-C print CPU cost\n"); exit (-1); break; } } double phase = (1<2)&&(nr_bit<65)),"illegal combination format %d, nr_bit %d\n", format,nr_bit); int do_DTX=0; if ((format < 2) && (actual_payload == 4)) do_DTX=1; if (random_payload) { double tmp = uniformrandom(); memcpy(&actual_payload, &tmp, sizeof(actual_payload)); } actual_payload &= nr_bit < 64 ? (1UL << nr_bit) - 1: 0xffffffffffffffff; printf("Transmitted payload is %lu, do_DTX = %d\n",actual_payload,do_DTX); RC.gNB = calloc(1, sizeof(PHY_VARS_gNB *)); RC.gNB[0] = calloc(1,sizeof(PHY_VARS_gNB)); gNB = RC.gNB[0]; gNB->pucch0_thres = pucch_DTX_thres; 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; frame_parms->Nid_cell = Nid_cell; nfapi_nr_config_request_scf_t *cfg = &gNB->gNB_config; cfg->carrier_config.num_tx_ant.value = n_tx; cfg->carrier_config.num_rx_ant.value = n_rx; nr_phy_config_request_sim(gNB,N_RB_DL,N_RB_DL,mu,Nid_cell,SSB_positions); // TDD configuration gNB->gNB_config.tdd_table.tdd_period.value = 6; do_tdd_config_sim(gNB, mu); phy_init_nr_gNB(gNB); /* RU handles rxdataF, and gNB just has a pointer. Here, we don't have an RU, * so we need to allocate that memory as well. */ for (i = 0; i < n_rx; i++) gNB->common_vars.rxdataF[0][i] = malloc16_clear(gNB->frame_parms.samples_per_frame_wCP * sizeof(c16_t)); double fs,txbw,rxbw; uint32_t samples; get_samplerate_and_bw(mu, N_RB_DL, frame_parms->threequarter_fs, &fs, &samples, &txbw, &rxbw); UE2gNB = new_channel_desc_scm(n_tx, n_rx, channel_model, fs, 0, txbw, DS_TDL, 0.0, CORR_LEVEL_LOW, 0, 0, 0, 0); if (UE2gNB==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; s_re = malloc(n_tx*sizeof(double*)); s_im = malloc(n_tx*sizeof(double*)); r_re = malloc(n_rx*sizeof(double*)); r_im = malloc(n_rx*sizeof(double*)); memcpy((void *)&gNB->frame_parms, (void *)frame_parms, sizeof(*frame_parms)); for (int aatx=0; aatxframe_parms,frame_parms,sizeof(NR_DL_FRAME_PARMS)); UE->frame_parms.nb_antennas_rx=1; if (init_nr_ue_signal(UE, 1) != 0) { printf("Error at UE NR initialisation\n"); exit(-1); } fapi_nr_ul_config_pucch_pdu pucch_tx_pdu; if (format==0) { pucch_tx_pdu.format_type = 0; pucch_tx_pdu.nr_of_symbols = nrofSymbols; pucch_tx_pdu.start_symbol_index = startingSymbolIndex; pucch_tx_pdu.bwp_start = 0; pucch_tx_pdu.prb_start = startingPRB; pucch_tx_pdu.hopping_id = hopping_id; pucch_tx_pdu.group_hop_flag = 0; pucch_tx_pdu.sequence_hop_flag = 0; pucch_tx_pdu.freq_hop_flag = 0; pucch_tx_pdu.mcs = mcs; pucch_tx_pdu.initial_cyclic_shift = 0; pucch_tx_pdu.second_hop_prb = startingPRB_intraSlotHopping; } if (format==2) { pucch_tx_pdu.format_type = 2; pucch_tx_pdu.rnti = 0x1234; pucch_tx_pdu.n_bit = nr_bit; pucch_tx_pdu.payload = actual_payload; pucch_tx_pdu.nr_of_symbols = nrofSymbols; pucch_tx_pdu.start_symbol_index = startingSymbolIndex; pucch_tx_pdu.bwp_start = 0; pucch_tx_pdu.prb_start = startingPRB; pucch_tx_pdu.prb_size = nrofPRB; pucch_tx_pdu.hopping_id = hopping_id; pucch_tx_pdu.group_hop_flag = 0; pucch_tx_pdu.sequence_hop_flag = 0; pucch_tx_pdu.freq_hop_flag = 0; pucch_tx_pdu.dmrs_scrambling_id = dmrs_scrambling_id; pucch_tx_pdu.data_scrambling_id = data_scrambling_id; pucch_tx_pdu.second_hop_prb = startingPRB_intraSlotHopping; } pucch_GroupHopping_t PUCCH_GroupHopping = pucch_tx_pdu.group_hop_flag + (pucch_tx_pdu.sequence_hop_flag<<1); double tx_level_fp = 100.0; c16_t **rxdataF = gNB->common_vars.rxdataF[0]; for(SNR = snr0; SNR <= snr1 && !stop; SNR += 1) { ack_nack_errors=0; sr_errors = 0; n_errors = 0; c16_t **txdataF = gNB->common_vars.txdataF[0]; for (trial = 0; trial < n_trials && !stop; trial++) { for (int aatx=0;aatx<1;aatx++) bzero(txdataF[aatx],frame_parms->ofdm_symbol_size*sizeof(int)); if(format==0 && do_DTX==0){ nr_generate_pucch0(UE, txdataF, frame_parms, amp, nr_slot_tx, &pucch_tx_pdu); } else if (format == 1 && do_DTX==0){ nr_generate_pucch1(UE, txdataF, frame_parms, amp, nr_slot_tx, &pucch_tx_pdu); } else if (do_DTX == 0){ nr_generate_pucch2(UE, txdataF, frame_parms, amp, nr_slot_tx, &pucch_tx_pdu); } // SNR Computation // standard says: SNR = S / N, where S is the total signal energy, N is the noise energy in the transmission bandwidth (i.e. N_RB_DL resource blocks) // txlev = S. // Compute transmitter energy level int symbol_offset = startingSymbolIndex * frame_parms->ofdm_symbol_size; int symbol_length = frame_parms->ofdm_symbol_size; double txlev = compute_tx_energy_level(txdataF, 1, symbol_offset, symbol_length, n_trials); // sigma2 is variance per dimension, so N/(N_RB*12) // so, sigma2 = N/(N_RB_DL*12) => (S/SNR)/(N_RB*12) int N_RB = (format == 0 || format == 1) ? 1 : nrofPRB; double sigma2 = compute_noise_variance(txlev, N_RB_DL * 12, N_RB, 1, SNR, n_trials); for (int symb=0; symbframe_parms.symbols_per_slot;symb++) { if (symb= startingSymbolIndex+nrofSymbols) { int i0 = symb*gNB->frame_parms.ofdm_symbol_size; for (int re=0;reframe_parms.first_carrier_offset + re)%gNB->frame_parms.ofdm_symbol_size); for (int aarx=0;aarxframe_parms.ofdm_symbol_size; for (int re=0;reframe_parms.first_carrier_offset + re)%gNB->frame_parms.ofdm_symbol_size); struct complexd phasor; phasor.r = cos(2*M_PI*phase*re); phasor.i = sin(2*M_PI*phase*re); for (int aarx=0;aarxchannel_length; l++) { rxr = txr*UE2gNB->chF[aarx][l].r - txi*UE2gNB->chF[aarx][l].i; rxi = txr*UE2gNB->chF[aarx][l].i + txi*UE2gNB->chF[aarx][l].r; } double rxr_tmp = rxr*phasor.r - rxi*phasor.i; rxi = rxr*phasor.i + rxi*phasor.r; rxr = rxr_tmp; double nr = sqrt(sigma2/2)*gaussdouble(0.0,1.0); double ni = sqrt(sigma2/2)*gaussdouble(0.0,1.0); rxdataF[aarx][i].r = (int16_t)(tx_level_fp * (rxr + nr) / sqrt((double)txlev)); rxdataF[aarx][i].i = (int16_t)(tx_level_fp * (rxi + ni) / sqrt((double)txlev)); if (n_trials==1 && fabs(txr) > 0) printf("symb %d, re %d , aarx %d : txr %f, txi %f, chr %f, chi %f, nr %f, ni %f, rxr %f, rxi %f => %d,%d\n", symb, re, aarx, txr,txi, UE2gNB->chF[aarx][re].r,UE2gNB->chF[aarx][re].i, nr,ni, rxr,rxi, rxdataF[aarx][i].r,rxdataF[aarx][i].i); } } } int rxlev=0; for (int aarx=0;aarxofdm_symbol_size], frame_parms->ofdm_symbol_size); int rxlev_pucch=0; for (int aarx=0;aarxofdm_symbol_size], 12); // set UL mask for pucch allocation uint32_t rb_mask_ul[14][9] = {0}; for (int s=0;ssymbols_per_slot;s++){ if (s>=startingSymbolIndex && s<(startingSymbolIndex+nrofSymbols)) for (int rb=0; rb> 5] |= (1 << (rb2 & 31)); } } // noise measurement (all PRBs) gNB_I0_measurements(gNB, nr_slot_tx, 0, gNB->frame_parms.symbols_per_slot, rb_mask_ul); start_meas(&gNB->phy_proc_rx); if (n_trials == 1) printf("noise rxlev %d (%d dB), rxlev pucch %d dB sigma2 %f dB, SNR %f, TX %f, I0 (pucch) %d, I0 (avg) %d\n", rxlev, dB_fixed(rxlev), dB_fixed(rxlev_pucch), 10 * log10(sigma2), SNR, 10 * log10((double)txlev * UE->frame_parms.ofdm_symbol_size / 12), gNB->measurements.n0_subband_power_tot_dB[startingPRB], gNB->measurements.n0_subband_power_avg_dB); if(format==0){ nfapi_nr_uci_pucch_pdu_format_0_1_t uci_pdu; nfapi_nr_pucch_pdu_t pucch_pdu; gNB->phy_stats[0].rnti = 0x1234; pucch_pdu.rnti = 0x1234; pucch_pdu.subcarrier_spacing = 1; pucch_pdu.group_hop_flag = PUCCH_GroupHopping&1; pucch_pdu.sequence_hop_flag = (PUCCH_GroupHopping>>1)&1; pucch_pdu.bit_len_harq = nr_bit; pucch_pdu.bit_len_csi_part1 = 0; pucch_pdu.bit_len_csi_part2 = 0; pucch_pdu.sr_flag = sr_flag; pucch_pdu.nr_of_symbols = nrofSymbols; pucch_pdu.hopping_id = hopping_id; pucch_pdu.initial_cyclic_shift = 0; pucch_pdu.start_symbol_index = startingSymbolIndex; pucch_pdu.prb_start = startingPRB; pucch_pdu.prb_size = 1; pucch_pdu.bwp_start = 0; pucch_pdu.bwp_size = N_RB_DL; if (nrofSymbols>1) { pucch_pdu.freq_hop_flag = 1; pucch_pdu.second_hop_prb = N_RB_DL-1; } else pucch_pdu.freq_hop_flag = 0; nr_decode_pucch0(gNB, rxdataF, nr_frame_tx, nr_slot_tx,&uci_pdu,&pucch_pdu); if(sr_flag==1){ if (uci_pdu.sr.sr_indication == 0 || uci_pdu.sr.sr_confidence_level == 1) sr_errors+=1; } // harq value 0 -> pass nfapi_nr_harq_t *harq_list = uci_pdu.harq.harq_list; // confidence value 0 -> good confidence const int confidence_lvl = uci_pdu.harq.harq_confidence_level; if(nr_bit>0){ if (nr_bit==1 && do_DTX == 0) ack_nack_errors+=(actual_payload^(!harq_list[0].harq_value)); else if (do_DTX == 0) ack_nack_errors+=(((actual_payload&1)^(!harq_list[1].harq_value))+((actual_payload>>1)^(!harq_list[0].harq_value))); else if ((!confidence_lvl && !harq_list[0].harq_value) || (!confidence_lvl && nr_bit == 2 && !harq_list[1].harq_value)) ack_nack_errors++; } } else if (format==1) { nr_decode_pucch1((c16_t **)rxdataF,PUCCH_GroupHopping,hopping_id, &(payload_received),frame_parms,amp,nr_slot_tx, m0,nrofSymbols,startingSymbolIndex,startingPRB, startingPRB_intraSlotHopping,timeDomainOCC,nr_bit); if(nr_bit==1) ack_nack_errors+=((actual_payload^payload_received)&1); else ack_nack_errors+=((actual_payload^payload_received)&1) + (((actual_payload^payload_received)&2)>>1); } else if (format==2) { nfapi_nr_uci_pucch_pdu_format_2_3_4_t uci_pdu={0}; nfapi_nr_pucch_pdu_t pucch_pdu={0}; pucch_pdu.rnti = 0x1234; pucch_pdu.subcarrier_spacing = 1; pucch_pdu.group_hop_flag = PUCCH_GroupHopping&1; pucch_pdu.sequence_hop_flag = (PUCCH_GroupHopping>>1)&1; pucch_pdu.bit_len_csi_part1 = nr_bit; pucch_pdu.bit_len_harq = 0; pucch_pdu.bit_len_csi_part2 = 0; pucch_pdu.sr_flag = 0; pucch_pdu.nr_of_symbols = nrofSymbols; pucch_pdu.hopping_id = hopping_id; pucch_pdu.initial_cyclic_shift = 0; pucch_pdu.start_symbol_index = startingSymbolIndex; pucch_pdu.prb_size = nrofPRB; pucch_pdu.prb_start = startingPRB; pucch_pdu.dmrs_scrambling_id = dmrs_scrambling_id; pucch_pdu.data_scrambling_id = data_scrambling_id; if (nrofSymbols>1) { pucch_pdu.freq_hop_flag = 1; pucch_pdu.second_hop_prb = N_RB_DL-1; } else pucch_pdu.freq_hop_flag = 0; nr_decode_pucch2(gNB, rxdataF, nr_frame_tx, nr_slot_tx, &uci_pdu, &pucch_pdu); int csi_part1_bytes=pucch_pdu.bit_len_csi_part1>>3; if ((pucch_pdu.bit_len_csi_part1&7) > 0) csi_part1_bytes++; for (int i=0;iphy_proc_rx); n_errors=((actual_payload^payload_received)&1)+(((actual_payload^payload_received)&2)>>1)+(((actual_payload^payload_received)&4)>>2)+n_errors; } if (sr_flag == 1) printf("SR: SNR=%f, n_trials=%d, n_bit_errors=%d\n",SNR,n_trials,sr_errors); if (print_perf) { time_stats_t *ts = &gNB->phy_proc_rx; printf("cpu time for pucch format %d: per block %.2f us; nb blocks %d, max time %.2f;\n", format, ts->diff / ts->trials / cpuf / 1000.0, ts->trials, ts->max / cpuf / 1000.0); reset_meas(ts); } if(nr_bit > 0) printf("ACK/NACK: SNR=%f, n_trials=%d, n_bit_errors=%d\n",SNR,n_trials,ack_nack_errors); if((float)(ack_nack_errors+sr_errors)/(float)(n_trials)<=target_error_rate){ printf("PUCCH test OK\n"); ret = 0; break; } } free_channel_desc_scm(UE2gNB); term_freq_channel(); int nb_slots_to_set = (1 << mu) * NR_NUMBER_OF_SUBFRAMES_PER_FRAME; for (int i = 0; i < nb_slots_to_set; ++i) free(gNB->gNB_config.tdd_table.max_tdd_periodicity_list[i].max_num_of_symbol_per_slot_list); free(gNB->gNB_config.tdd_table.max_tdd_periodicity_list); for (int j = 0; j < gNB->common_vars.num_beams_period; j++) { for (i = 0; i < n_rx; i++) free(gNB->common_vars.rxdataF[j][i]); } phy_free_nr_gNB(gNB); free(RC.gNB[0]); free(RC.gNB); term_nr_ue_signal(UE, 1); free(UE); for (int aatx=0; aatx