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@ -37,14 +37,15 @@ srslte_cell_t cell = {
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.phich_length = SRSLTE_PHICH_NORM
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};
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uint32_t transmission_mode = 1;
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uint32_t cfi = 1;
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uint32_t nof_rx_ant = 1;
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uint32_t nof_subframes = 0;
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uint16_t rnti = 0x1234;
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bool print_dci_table;
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uint32_t mcs = 20;
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int cross_carrier_indicator = -1;
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static uint32_t transmission_mode = 1;
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static uint32_t cfi = 1;
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static uint32_t nof_rx_ant = 1;
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static uint32_t nof_subframes = 0;
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static uint16_t rnti = 0x1234;
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static bool print_dci_table;
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static uint32_t mcs = 20;
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static int cross_carrier_indicator = -1;
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static bool enable_256qam = false;
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void usage(char *prog) {
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printf("Usage: %s [cfpndvs]\n", prog);
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@ -62,6 +63,7 @@ void usage(char *prog) {
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printf("\t\t-a carrier-indicator [Default none]\n");
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}
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printf("\t-v [set srslte_verbose to debug, default none]\n");
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printf("\t-q Enable/Disable 256QAM modulation (default %s)\n", enable_256qam ? "enabled" : "disabled");
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}
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void parse_extensive_param(char* param, char* arg)
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@ -81,7 +83,17 @@ void parse_extensive_param(char* param, char* arg)
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void parse_args(int argc, char **argv) {
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int opt;
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while ((opt = getopt(argc, argv, "cfapndvstm")) != -1) {
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// Load default transmission mode to avoid wrong number of ports/antennas
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if (transmission_mode == 0) {
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cell.nof_ports = 1;
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nof_rx_ant = 1;
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} else if (transmission_mode < 4) {
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cell.nof_ports = 2;
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nof_rx_ant = 2;
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}
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while ((opt = getopt(argc, argv, "cfapndvqstm")) != -1) {
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switch (opt) {
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case 't':
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transmission_mode = (uint32_t)strtol(argv[optind], NULL, 10) - 1;
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@ -118,6 +130,9 @@ void parse_args(int argc, char **argv) {
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case 'v':
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srslte_verbose++;
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break;
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case 'q':
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enable_256qam ^= true;
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break;
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default:
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usage(argv[0]);
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exit(-1);
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@ -145,7 +160,7 @@ int work_enb(srslte_enb_dl_t* enb_dl,
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// Create pdsch config
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srslte_pdsch_cfg_t pdsch_cfg;
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if (srslte_ra_dl_dci_to_grant(&cell, dl_sf, transmission_mode, dci, &pdsch_cfg.grant)) {
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if (srslte_ra_dl_dci_to_grant(&cell, dl_sf, transmission_mode, enable_256qam, dci, &pdsch_cfg.grant)) {
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ERROR("Computing DL grant sf_idx=%d\n", dl_sf->tti);
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goto quit;
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}
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@ -211,7 +226,8 @@ int work_ue(srslte_ue_dl_t* ue_dl,
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srslte_dci_dl_info(&dci_dl[0], str, 512);
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INFO("UE PDCCH: rnti=0x%x, %s\n", rnti, str);
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if (srslte_ra_dl_dci_to_grant(&cell, sf_cfg_dl, transmission_mode, &dci_dl[0], &ue_dl_cfg->cfg.pdsch.grant)) {
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if (srslte_ra_dl_dci_to_grant(
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&cell, sf_cfg_dl, transmission_mode, enable_256qam, &dci_dl[0], &ue_dl_cfg->cfg.pdsch.grant)) {
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ERROR("Computing DL grant sf_idx=%d\n", sf_idx);
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return -1;
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}
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@ -255,10 +271,8 @@ uint32_t prbset_to_bitmask() {
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return reverse(mask) >> (32 - nb);
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}
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static srslte_enb_dl_t enb_dl;
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static srslte_ue_dl_t ue_dl;
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static int check_softbits(srslte_ue_dl_cfg_t* ue_dl_cfg, uint32_t sf_idx, int tb)
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static int
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check_softbits(srslte_enb_dl_t enb_dl, srslte_ue_dl_t ue_dl, srslte_ue_dl_cfg_t* ue_dl_cfg, uint32_t sf_idx, int tb)
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{
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int ret = SRSLTE_SUCCESS;
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@ -292,11 +306,12 @@ static int check_softbits(srslte_ue_dl_cfg_t* ue_dl_cfg, uint32_t sf_idx, int tb
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return ret;
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}
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static int check_evm(srslte_ue_dl_cfg_t* ue_dl_cfg, int tb)
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static int check_evm(srslte_enb_dl_t enb_dl, srslte_ue_dl_t ue_dl, srslte_ue_dl_cfg_t* ue_dl_cfg, int tb)
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{
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int ret = SRSLTE_SUCCESS;
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srslte_vec_sub_ccc(enb_dl.pdsch.d[tb], ue_dl.pdsch.d[tb], enb_dl.pdsch.d[tb], ue_dl_cfg->cfg.pdsch.grant.nof_re);
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float evm = srslte_vec_avg_power_cf(enb_dl.pdsch.d[tb], ue_dl_cfg->cfg.pdsch.grant.nof_re);
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uint32_t evm_max_i = srslte_vec_max_abs_ci(enb_dl.pdsch.d[tb], ue_dl_cfg->cfg.pdsch.grant.nof_re);
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float evm = cabsf(enb_dl.pdsch.d[tb][evm_max_i]);
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if (evm > 0.1f) {
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printf("TB%d Constellation EVM (%.3f) is too high\n", tb, evm);
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@ -307,6 +322,8 @@ static int check_evm(srslte_ue_dl_cfg_t* ue_dl_cfg, int tb)
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}
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int main(int argc, char **argv) {
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srslte_enb_dl_t* enb_dl = srslte_vec_malloc(sizeof(srslte_enb_dl_t));
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srslte_ue_dl_t* ue_dl = srslte_vec_malloc(sizeof(srslte_ue_dl_t));
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srslte_random_t random = srslte_random_init(0);
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struct timeval t[3] = {};
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size_t tx_nof_bits = 0, rx_nof_bits = 0;
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@ -374,17 +391,17 @@ int main(int argc, char **argv) {
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/*
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* Initialise eNb
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*/
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if (srslte_enb_dl_init(&enb_dl, signal_buffer, cell.nof_prb)) {
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if (srslte_enb_dl_init(enb_dl, signal_buffer, cell.nof_prb)) {
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ERROR("Error initiating eNb downlink\n");
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goto quit;
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}
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if (srslte_enb_dl_set_cell(&enb_dl, cell)) {
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if (srslte_enb_dl_set_cell(enb_dl, cell)) {
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ERROR("Error setting eNb DL cell\n");
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goto quit;
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}
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if (srslte_enb_dl_add_rnti(&enb_dl, rnti)) {
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if (srslte_enb_dl_add_rnti(enb_dl, rnti)) {
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ERROR("Error adding RNTI\n");
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goto quit;
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}
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@ -392,17 +409,17 @@ int main(int argc, char **argv) {
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/*
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* Initialise UE
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*/
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if (srslte_ue_dl_init(&ue_dl, signal_buffer, cell.nof_prb, nof_rx_ant)) {
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if (srslte_ue_dl_init(ue_dl, signal_buffer, cell.nof_prb, nof_rx_ant)) {
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ERROR("Error initiating UE downlink\n");
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goto quit;
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}
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if (srslte_ue_dl_set_cell(&ue_dl, cell)) {
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if (srslte_ue_dl_set_cell(ue_dl, cell)) {
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ERROR("Error setting UE downlink cell\n");
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goto quit;
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}
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srslte_ue_dl_set_rnti(&ue_dl, rnti);
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srslte_ue_dl_set_rnti(ue_dl, rnti);
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/*
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* Create PDCCH Allocations
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@ -417,7 +434,7 @@ int main(int argc, char **argv) {
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sf_cfg_dl.cfi = cfi;
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sf_cfg_dl.sf_type = SRSLTE_SF_NORM;
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nof_locations[i] = srslte_pdcch_ue_locations(&enb_dl.pdcch, &sf_cfg_dl, dci_locations[i], MAX_CANDIDATES_UE, rnti);
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nof_locations[i] = srslte_pdcch_ue_locations(&enb_dl->pdcch, &sf_cfg_dl, dci_locations[i], MAX_CANDIDATES_UE, rnti);
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location_counter += nof_locations[i];
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}
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@ -529,7 +546,7 @@ int main(int argc, char **argv) {
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INFO("--- Process eNb ---\n");
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gettimeofday(&t[1], NULL);
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if (work_enb(&enb_dl, &sf_cfg_dl, &dci_cfg, &dci, softbuffer_tx, data_tx)) {
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if (work_enb(enb_dl, &sf_cfg_dl, &dci_cfg, &dci, softbuffer_tx, data_tx)) {
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goto quit;
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}
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gettimeofday(&t[2], NULL);
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@ -576,6 +593,7 @@ int main(int argc, char **argv) {
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ue_dl_cfg.chest_cfg.cfo_estimate_sf_mask = false;
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ue_dl_cfg.chest_cfg.sync_error_enable = false;
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ue_dl_cfg.dci_cfg = dci_cfg;
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ue_dl_cfg.pdsch_use_tbs_index_alt = enable_256qam;
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srslte_pdsch_res_t pdsch_res[SRSLTE_MAX_CODEWORDS];
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for (int i = 0; i < SRSLTE_MAX_CODEWORDS; i++) {
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@ -584,7 +602,7 @@ int main(int argc, char **argv) {
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pdsch_res[i].crc = false;
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ue_dl_cfg.cfg.pdsch.softbuffers.rx[i] = softbuffer_rx[i];
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}
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if (work_ue(&ue_dl, &sf_cfg_dl, &ue_dl_cfg, dci_dl, sf_idx, pdsch_res)) {
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if (work_ue(ue_dl, &sf_cfg_dl, &ue_dl_cfg, dci_dl, sf_idx, pdsch_res)) {
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goto quit;
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}
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@ -594,15 +612,15 @@ int main(int argc, char **argv) {
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for (int i = 0; i < SRSLTE_MAX_TB; i++) {
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if (ue_dl_cfg.cfg.pdsch.grant.tb[i].enabled) {
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if (check_evm(&ue_dl_cfg, i)) {
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if (check_evm(*enb_dl, *ue_dl, &ue_dl_cfg, i)) {
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count_failures++;
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} else if (check_softbits(&ue_dl_cfg, sf_idx, i) != SRSLTE_SUCCESS) {
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} else if (check_softbits(*enb_dl, *ue_dl, &ue_dl_cfg, sf_idx, i) != SRSLTE_SUCCESS) {
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printf("TB%d: The received softbits in subframe %d DO NOT match the encoded bits (crc=%d)\n",
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i,
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sf_idx,
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pdsch_res[i].crc);
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srslte_vec_fprint_byte(stdout, (uint8_t*)enb_dl.pdsch.e[i], ue_dl_cfg.cfg.pdsch.grant.tb[i].nof_bits / 8);
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srslte_vec_fprint_byte(stdout, (uint8_t*)ue_dl.pdsch.e[i], ue_dl_cfg.cfg.pdsch.grant.tb[i].nof_bits / 8);
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srslte_vec_fprint_byte(stdout, (uint8_t*)enb_dl->pdsch.e[i], ue_dl_cfg.cfg.pdsch.grant.tb[i].nof_bits / 8);
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srslte_vec_fprint_byte(stdout, (uint8_t*)ue_dl->pdsch.e[i], ue_dl_cfg.cfg.pdsch.grant.tb[i].nof_bits / 8);
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count_failures++;
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} else if (!pdsch_res[i].crc ||
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|
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memcmp(data_tx[i], data_rx[i], (uint32_t)ue_dl_cfg.cfg.pdsch.grant.tb[i].tbs / 8) != 0) {
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@ -637,18 +655,14 @@ int main(int argc, char **argv) {
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printf("BLER: %5.1f%%\n", (float) count_failures / (float) count_tbs * 100.0f);
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quit:
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srslte_enb_dl_free(&enb_dl);
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srslte_ue_dl_free(&ue_dl);
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srslte_random_free(random);
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srslte_enb_dl_free(enb_dl);
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srslte_ue_dl_free(ue_dl);
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srslte_random_free(random);
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for (
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int i = 0;
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i < cell.
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|
|
nof_ports;
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|
|
i++) {
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|
|
if (signal_buffer[i]) {
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|
|
free(signal_buffer[i]);
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}
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|
for (int i = 0; i < cell.nof_ports; i++) {
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|
|
if (signal_buffer[i]) {
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|
|
free(signal_buffer[i]);
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|
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}
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|
|
}
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|
|
for (
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|
|