diff --git a/openair1/SIMULATION/NR_PHY/pucchsim.c b/openair1/SIMULATION/NR_PHY/pucchsim.c index bfa294a55f..c12bdfa651 100644 --- a/openair1/SIMULATION/NR_PHY/pucchsim.c +++ b/openair1/SIMULATION/NR_PHY/pucchsim.c @@ -29,7 +29,7 @@ #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 "common/ran_context.h" #include "PHY/types.h" #include "PHY/defs_nr_common.h" #include "PHY/defs_nr_UE.h" @@ -61,13 +61,22 @@ 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) { +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 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 _) { @@ -80,9 +89,10 @@ void deref_sched_response(int _) exit(1); } -nrUE_params_t nrUE_params={0}; +nrUE_params_t nrUE_params = {0}; -nrUE_params_t *get_nrUE_params(void) { +nrUE_params_t *get_nrUE_params(void) +{ return &nrUE_params; } @@ -93,53 +103,45 @@ int main(int argc, char **argv) __attribute__((unused)) struct sigaction oldaction; sigaction(SIGINT, &sigint_action, &oldaction); - int i;//,l; + int i; 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; + double cfo = 0; + uint8_t snr1set = 0; + double **s_re, **s_im, **r_re, **r_im; 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 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; + 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; + int format = 0; + FILE *input_fd = NULL; + 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; + 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 + // resource allocated see 9.2.1, 38.213 for more info.should be actually present in the resource set provided + uint8_t startingSymbolIndex = 0; + uint16_t startingPRB = 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 startingPRB_intraSlotHopping = 0; + 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 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 loglvl = OAILOG_WARNING; int sr_flag = 0; int pucch_DTX_thres = 0; cpuf = get_cpu_freq_GHz(); @@ -159,269 +161,257 @@ int main(int argc, char **argv) if (c == 1 || c == '-' || c == 'O') continue; - printf("handling optarg %c\n",c); + printf("handling optarg %c\n", c); switch (c) { - case 'f': - //write_output_file=1; - output_fd = fopen(optarg,"w"); + 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; + if (output_fd == NULL) { + printf("Error opening %s\n", optarg); + exit(-1); + } break; - case 'B': - channel_model=SCM_B; + 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 'C': - channel_model=SCM_C; + case 'n': + n_trials = atoi(optarg); break; - case 'D': - channel_model=SCM_D; + case 'o': + cfo = atof(optarg); + printf("Setting CFO to %f Hz\n", cfo); break; - case 'E': - channel_model=EPA; + 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 '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': - channel_model=EVA; + input_fd = fopen(optarg, "r"); + + if (input_fd == NULL) { + printf("Problem with filename %s\n", optarg); + exit(-1); + } break; - case 'G': - channel_model=ETU; + case 'L': + loglvl = atoi(optarg); + break; + case 'i': + nrofSymbols = (uint8_t)atoi(optarg); break; - case 'H': - channel_model = TDL_C; - DS_TDL = .030; // 30 ns - break; - case 'I': - channel_model = TDL_C; - DS_TDL = .3; // 300ns + 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; - - case 'J': - channel_model=TDL_D; - DS_TDL = .03; - break; - default: - printf("Unsupported channel model!\n"); + 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; - - 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; + 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; + AssertFatal(((format < 2) && (nr_bit < 3) && (actual_payload < 5)) || ((format == 2) && (nr_bit > 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; + actual_payload &= nr_bit < 64 ? (1UL << nr_bit) - 1 : 0xffffffffffffffff; - printf("Transmitted payload is %lu, do_DTX = %d\n",actual_payload,do_DTX); + 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)); + 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 = &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; @@ -431,7 +421,7 @@ int main(int argc, char **argv) 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); + 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); @@ -442,71 +432,66 @@ int main(int argc, char **argv) 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; - get_samplerate_and_bw(mu, - N_RB_DL, - frame_parms->threequarter_fs, - &fs, - &txbw, - &rxbw); + double fs, txbw, rxbw; + get_samplerate_and_bw(mu, N_RB_DL, frame_parms->threequarter_fs, &fs, &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) { + 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; + 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*)); + 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; + // configure UE + UE = calloc(1, sizeof(PHY_VARS_NR_UE)); + memcpy(&UE->frame_parms, frame_parms, sizeof(NR_DL_FRAME_PARMS)); + UE->frame_parms.nb_antennas_rx = 1; - if (init_nr_ue_signal(UE, 1) != 0) - { + 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) { + if (format == 0) { pucch_tx_pdu.format_type = 0; pucch_tx_pdu.nr_of_symbols = nrofSymbols; pucch_tx_pdu.start_symbol_index = startingSymbolIndex; @@ -520,7 +505,7 @@ int main(int argc, char **argv) pucch_tx_pdu.initial_cyclic_shift = 0; pucch_tx_pdu.second_hop_prb = startingPRB_intraSlotHopping; } - if (format==2) { + if (format == 2) { pucch_tx_pdu.format_type = 2; pucch_tx_pdu.rnti = 0x1234; pucch_tx_pdu.n_bit = nr_bit; @@ -539,28 +524,28 @@ int main(int argc, char **argv) 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); + 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; + 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){ + 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(txdataF, frame_parms, amp, nr_slot_tx, &pucch_tx_pdu); - } else if (format == 1 && do_DTX==0){ + } else if (format == 1 && do_DTX == 0) { nr_generate_pucch1(txdataF, frame_parms, amp, nr_slot_tx, &pucch_tx_pdu); - } else if (do_DTX == 0){ + } else if (do_DTX == 0) { nr_generate_pucch2(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. + // 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; @@ -572,14 +557,14 @@ int main(int argc, char **argv) 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.symbols_per_slot; symb++) { + if (symb < startingSymbolIndex || symb >= startingSymbolIndex + nrofSymbols) { + int i0 = symb * gNB->frame_parms.ofdm_symbol_size; + for (int re = 0; re < N_RB_DL * 12; re++) { + i = i0 + ((gNB->frame_parms.first_carrier_offset + re) % gNB->frame_parms.ofdm_symbol_size); + for (int aarx = 0; aarx < n_rx; aarx++) { + 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 * (nr) / sqrt((double)txlev)); rxdataF[aarx][i].i = (int16_t)(tx_level_fp * (ni) / sqrt((double)txlev)); } @@ -587,55 +572,66 @@ int main(int argc, char **argv) } } - random_channel(UE2gNB,0); - freq_channel(UE2gNB,N_RB_DL,2*N_RB_DL+1,15<frame_parms.ofdm_symbol_size; - for (int re=0;reframe_parms.first_carrier_offset + re)%gNB->frame_parms.ofdm_symbol_size); + random_channel(UE2gNB, 0); + freq_channel(UE2gNB, N_RB_DL, 2 * N_RB_DL + 1, 15 << mu); + for (int symb = 0; symb < nrofSymbols; symb++) { + int i0 = (startingSymbolIndex + symb) * gNB->frame_parms.ofdm_symbol_size; + for (int re = 0; re < N_RB_DL * 12; re++) { + i = i0 + ((gNB->frame_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; + phasor.r = cos(2 * M_PI * phase * re); + phasor.i = sin(2 * M_PI * phase * re); + for (int aarx = 0; aarx < n_rx; aarx++) { + double txr = (double)(((int16_t *)txdataF[0])[(i << 1)]); + double txi = (double)(((int16_t *)txdataF[0])[1 + (i << 1)]); + double rxr = {0}, rxi = {0}; + for (int l = 0; l < UE2gNB->channel_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); + 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); + 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 = 0; + for (int aarx = 0; aarx < n_rx; aarx++) + rxlev += signal_energy((int32_t *)&rxdataF[aarx][startingSymbolIndex * frame_parms->ofdm_symbol_size], + frame_parms->ofdm_symbol_size); - int rxlev_pucch=0; + int rxlev_pucch = 0; - for (int aarx=0;aarxofdm_symbol_size], - 12); + for (int aarx = 0; aarx < n_rx; aarx++) + rxlev_pucch += signal_energy((int32_t *)&rxdataF[aarx][startingSymbolIndex * frame_parms->ofdm_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; rbsymbols_per_slot; s++) { + if (s >= startingSymbolIndex && s < (startingSymbolIndex + nrofSymbols)) + for (int rb = 0; rb < N_RB; rb++) { + int rb2 = rb + startingPRB; rb_mask_ul[s][rb2 >> 5] |= (1 << (rb2 & 31)); } } @@ -654,103 +650,112 @@ int main(int argc, char **argv) 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){ + 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; + 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){ + 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; + 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)); + 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 += + (((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 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}; + 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; + 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;i> 3; + if ((pucch_pdu.bit_len_csi_part1 & 7) > 0) + csi_part1_bytes++; + for (int i = 0; i < csi_part1_bytes; i++) { + if (uci_pdu.csi_part1.csi_part1_payload[i] != ((uint8_t *)&actual_payload)[i]) { ack_nack_errors++; break; } } free(uci_pdu.csi_part1.csi_part1_payload); - } stop_meas(&gNB->phy_proc_rx); - n_errors=((actual_payload^payload_received)&1)+(((actual_payload^payload_received)&2)>>1)+(((actual_payload^payload_received)&4)>>2)+n_errors; + 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); + 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", @@ -760,9 +765,9 @@ int main(int argc, char **argv) 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){ + 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; @@ -787,11 +792,11 @@ int main(int argc, char **argv) term_nr_ue_signal(UE); free(UE); - for (int aatx=0; aatx