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srsRAN_4G/lib/test/phy/phy_dl_test.c

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/**
* Copyright 2013-2021 Software Radio Systems Limited
*
* This file is part of srsRAN.
*
* srsRAN is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* srsRAN is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* A copy of the GNU Affero General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include <srsran/phy/utils/random.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "srsran/srsran.h"
#define MAX_DATABUFFER_SIZE (6144 * 16 * 3 / 8)
srsran_cell_t cell = {.nof_prb = 100,
.nof_ports = 1,
.id = 1,
.cp = SRSRAN_CP_NORM,
.phich_resources = SRSRAN_PHICH_R_1,
.phich_length = SRSRAN_PHICH_NORM};
static uint32_t transmission_mode = 1;
static uint32_t cfi = 1;
static uint32_t nof_rx_ant = 1;
static uint32_t nof_subframes = 0;
static uint16_t rnti = 0x1234;
static bool print_dci_table;
static uint32_t mcs = 20;
static int cross_carrier_indicator = -1;
static bool enable_256qam = false;
void usage(char* prog)
{
printf("Usage: %s [cfpndvs]\n", prog);
printf("\t-c cell id [Default %d]\n", cell.id);
printf("\t-E extended Cyclic prefix [Default %d]\n", cell.cp);
printf("\t-f cfi [Default %d]\n", cfi);
printf("\t-p cell.nof_prb [Default %d]\n", cell.nof_prb);
printf("\t-s number of subframes to simulate [Default %d]\n", nof_subframes);
printf("\t-d Print DCI table [Default %s]\n", print_dci_table ? "yes" : "no");
printf("\t-t Transmission mode: 1,2,3,4 [Default %d]\n", transmission_mode + 1);
printf("\t-m mcs [Default %d]\n", mcs);
printf("\tAdvanced parameters:\n");
if (cross_carrier_indicator >= 0) {
printf("\t\t-a carrier-indicator [Default %d]\n", cross_carrier_indicator);
} else {
printf("\t\t-a carrier-indicator [Default none]\n");
}
printf("\t-v [set srsran_verbose to debug, default none]\n");
printf("\t-q Enable/Disable 256QAM modulation (default %s)\n", enable_256qam ? "enabled" : "disabled");
}
void parse_extensive_param(char* param, char* arg)
{
int ext_code = SRSRAN_SUCCESS;
if (!strcmp(param, "carrier-indicator")) {
cross_carrier_indicator = (uint32_t)strtol(arg, NULL, 10);
} else {
ext_code = SRSRAN_ERROR;
}
if (ext_code) {
ERROR("Error parsing parameter '%s' and argument '%s'", param, arg);
exit(ext_code);
}
}
void parse_args(int argc, char** argv)
{
int opt;
// Load default transmission mode to avoid wrong number of ports/antennas
if (transmission_mode == 0) {
cell.nof_ports = 1;
nof_rx_ant = 1;
} else if (transmission_mode < 4) {
cell.nof_ports = 2;
nof_rx_ant = 2;
}
while ((opt = getopt(argc, argv, "cfapndvqstmE")) != -1) {
switch (opt) {
case 't':
transmission_mode = (uint32_t)strtol(argv[optind], NULL, 10) - 1;
if (transmission_mode == 0) {
cell.nof_ports = 1;
nof_rx_ant = 1;
} else if (transmission_mode < 4) {
cell.nof_ports = 2;
nof_rx_ant = 2;
}
break;
case 'f':
cfi = (uint32_t)(uint32_t)strtol(argv[optind], NULL, 10);
break;
case 'm':
mcs = (uint32_t)(uint32_t)strtol(argv[optind], NULL, 10);
break;
case 'p':
cell.nof_prb = (uint32_t)strtol(argv[optind], NULL, 10);
break;
case 'c':
cell.id = (uint32_t)strtol(argv[optind], NULL, 10);
break;
case 's':
nof_subframes = (uint32_t)strtol(argv[optind], NULL, 10);
break;
case 'E':
cell.cp = ((uint32_t)strtol(argv[optind], NULL, 10)) ? SRSRAN_CP_EXT : SRSRAN_CP_NORM;
break;
case 'd':
print_dci_table = true;
break;
case 'a':
parse_extensive_param(argv[optind], argv[optind + 1]);
optind++;
break;
case 'v':
srsran_verbose++;
break;
case 'q':
enable_256qam = (enable_256qam) ? false : true;
break;
default:
usage(argv[0]);
exit(-1);
}
}
}
int work_enb(srsran_enb_dl_t* enb_dl,
srsran_dl_sf_cfg_t* dl_sf,
srsran_dci_cfg_t* dci_cfg,
srsran_dci_dl_t* dci,
srsran_softbuffer_tx_t** softbuffer_tx,
uint8_t** data_tx)
{
int ret = SRSRAN_ERROR;
srsran_enb_dl_put_base(enb_dl, dl_sf);
if (srsran_enb_dl_put_pdcch_dl(enb_dl, dci_cfg, dci)) {
ERROR("Error putting PDCCH sf_idx=%d", dl_sf->tti);
goto quit;
}
// Create pdsch config
srsran_pdsch_cfg_t pdsch_cfg;
if (srsran_ra_dl_dci_to_grant(&cell, dl_sf, transmission_mode, enable_256qam, dci, &pdsch_cfg.grant)) {
ERROR("Computing DL grant sf_idx=%d", dl_sf->tti);
goto quit;
}
char str[512];
srsran_dci_dl_info(dci, str, 512);
INFO("eNb PDCCH: rnti=0x%x, %s", rnti, str);
for (uint32_t i = 0; i < SRSRAN_MAX_CODEWORDS; i++) {
pdsch_cfg.softbuffers.tx[i] = softbuffer_tx[i];
}
// Enable power allocation
pdsch_cfg.power_scale = true;
pdsch_cfg.p_a = 0.0f; // 0 dB
pdsch_cfg.p_b = (transmission_mode > SRSRAN_TM1) ? 1 : 0; // 0 dB
pdsch_cfg.rnti = rnti;
pdsch_cfg.meas_time_en = false;
if (srsran_enb_dl_put_pdsch(enb_dl, &pdsch_cfg, data_tx) < 0) {
ERROR("Error putting PDSCH sf_idx=%d", dl_sf->tti);
goto quit;
}
srsran_pdsch_tx_info(&pdsch_cfg, str, 512);
INFO("eNb PDSCH: rnti=0x%x, %s", rnti, str);
srsran_enb_dl_gen_signal(enb_dl);
ret = SRSRAN_SUCCESS;
quit:
return ret;
}
int work_ue(srsran_ue_dl_t* ue_dl,
srsran_dl_sf_cfg_t* sf_cfg_dl,
srsran_ue_dl_cfg_t* ue_dl_cfg,
srsran_dci_dl_t* dci_dl,
uint32_t sf_idx,
srsran_pdsch_res_t pdsch_res[SRSRAN_MAX_CODEWORDS])
{
if (srsran_ue_dl_decode_fft_estimate(ue_dl, sf_cfg_dl, ue_dl_cfg) < 0) {
ERROR("Getting PDCCH FFT estimate sf_idx=%d", sf_idx);
return SRSRAN_ERROR;
}
int nof_grants = srsran_ue_dl_find_dl_dci(ue_dl, sf_cfg_dl, ue_dl_cfg, rnti, dci_dl);
if (nof_grants < 0) {
ERROR("Looking for DL grants sf_idx=%d", sf_idx);
return SRSRAN_ERROR;
} else if (nof_grants == 0) {
ERROR("Failed to find DCI in sf_idx=%d", sf_idx);
return SRSRAN_ERROR;
}
// Enable power allocation
ue_dl_cfg->cfg.pdsch.power_scale = true;
ue_dl_cfg->cfg.pdsch.p_a = 0.0f; // 0 dB
ue_dl_cfg->cfg.pdsch.p_b = (transmission_mode > SRSRAN_TM1) ? 1 : 0; // 0 dB
ue_dl_cfg->cfg.pdsch.rnti = dci_dl->rnti;
ue_dl_cfg->cfg.pdsch.csi_enable = false;
ue_dl_cfg->cfg.pdsch.meas_evm_en = false;
if (srsran_verbose >= SRSRAN_VERBOSE_INFO) {
char str[512];
srsran_dci_dl_info(&dci_dl[0], str, 512);
INFO("UE PDCCH: rnti=0x%x, %s", rnti, str);
}
if (srsran_ra_dl_dci_to_grant(
&cell, sf_cfg_dl, transmission_mode, enable_256qam, &dci_dl[0], &ue_dl_cfg->cfg.pdsch.grant)) {
ERROR("Computing DL grant sf_idx=%d", sf_idx);
return SRSRAN_ERROR;
}
// Reset softbuffer
for (int i = 0; i < SRSRAN_MAX_CODEWORDS; i++) {
if (ue_dl_cfg->cfg.pdsch.grant.tb[i].enabled) {
srsran_softbuffer_rx_reset(ue_dl_cfg->cfg.pdsch.softbuffers.rx[i]);
}
}
if (srsran_ue_dl_decode_pdsch(ue_dl, sf_cfg_dl, &ue_dl_cfg->cfg.pdsch, pdsch_res)) {
ERROR("ERROR: Decoding PDSCH sf_idx=%d", sf_idx);
return SRSRAN_ERROR;
}
if (srsran_verbose >= SRSRAN_VERBOSE_INFO) {
char str[512];
srsran_pdsch_rx_info(&ue_dl_cfg->cfg.pdsch, pdsch_res, str, 512);
INFO("eNb PDSCH: rnti=0x%x, %s", rnti, str);
}
return SRSRAN_SUCCESS;
}
static int
check_softbits(srsran_enb_dl_t* enb_dl, srsran_ue_dl_t* ue_dl, srsran_ue_dl_cfg_t* ue_dl_cfg, uint32_t sf_idx, int tb)
{
int ret = SRSRAN_SUCCESS;
// Scramble
if (ue_dl->pdsch.llr_is_8bit) {
srsran_sequence_pdsch_apply_c(ue_dl->pdsch.e[tb],
ue_dl->pdsch.e[tb],
rnti,
ue_dl_cfg->cfg.pdsch.grant.tb[tb].cw_idx,
2 * (sf_idx % 10),
cell.id,
ue_dl_cfg->cfg.pdsch.grant.tb[tb].nof_bits);
} else {
srsran_sequence_pdsch_apply_s(ue_dl->pdsch.e[tb],
ue_dl->pdsch.e[tb],
rnti,
ue_dl_cfg->cfg.pdsch.grant.tb[tb].cw_idx,
2 * (sf_idx % 10),
cell.id,
ue_dl_cfg->cfg.pdsch.grant.tb[tb].nof_bits);
}
int16_t* rx = ue_dl->pdsch.e[tb];
uint8_t* rx_bytes = ue_dl->pdsch.e[tb];
for (int i = 0, k = 0; i < ue_dl_cfg->cfg.pdsch.grant.tb[tb].nof_bits / 8; i++) {
uint8_t w = 0;
for (int j = 0; j < 8; j++, k++) {
w |= (rx[k] > 0) ? ((uint32_t)1 << (uint32_t)(7 - j)) : 0;
}
rx_bytes[i] = w;
}
if (memcmp(ue_dl->pdsch.e[tb], enb_dl->pdsch.e[tb], ue_dl_cfg->cfg.pdsch.grant.tb[tb].nof_bits / 8) != 0) {
ret = SRSRAN_ERROR;
}
return ret;
}
static int check_evm(srsran_enb_dl_t* enb_dl, srsran_ue_dl_t* ue_dl, srsran_ue_dl_cfg_t* ue_dl_cfg, int tb)
{
int ret = SRSRAN_SUCCESS;
srsran_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);
uint32_t evm_max_i = srsran_vec_max_abs_ci(enb_dl->pdsch.d[tb], ue_dl_cfg->cfg.pdsch.grant.nof_re);
float evm = cabsf(enb_dl->pdsch.d[tb][evm_max_i]);
if (evm > 0.1f) {
printf("TB%d Constellation EVM (%.3f) is too high\n", tb, evm);
ret = SRSRAN_ERROR;
}
return ret;
}
int main(int argc, char** argv)
{
srsran_enb_dl_t* enb_dl = srsran_vec_malloc(sizeof(srsran_enb_dl_t));
srsran_ue_dl_t* ue_dl = srsran_vec_malloc(sizeof(srsran_ue_dl_t));
srsran_random_t random = srsran_random_init(0);
struct timeval t[3] = {};
size_t tx_nof_bits = 0, rx_nof_bits = 0;
srsran_softbuffer_tx_t* softbuffer_tx[SRSRAN_MAX_TB] = {};
srsran_softbuffer_rx_t* softbuffer_rx[SRSRAN_MAX_TB] = {};
uint8_t* data_tx[SRSRAN_MAX_TB] = {};
uint8_t* data_rx[SRSRAN_MAX_TB] = {};
uint32_t count_failures = 0, count_tbs = 0;
size_t pdsch_decode_us = 0;
size_t pdsch_encode_us = 0;
int ret = -1;
parse_args(argc, argv);
cf_t* signal_buffer[SRSRAN_MAX_PORTS] = {NULL};
/*
* Allocate Memory
*/
for (int i = 0; i < cell.nof_ports; i++) {
signal_buffer[i] = srsran_vec_cf_malloc(SRSRAN_SF_LEN_PRB(cell.nof_prb));
if (!signal_buffer[i]) {
ERROR("Error allocating buffer");
goto quit;
}
}
for (int i = 0; i < SRSRAN_MAX_TB; i++) {
softbuffer_tx[i] = (srsran_softbuffer_tx_t*)calloc(sizeof(srsran_softbuffer_tx_t), 1);
if (!softbuffer_tx[i]) {
ERROR("Error allocating softbuffer_tx");
goto quit;
}
if (srsran_softbuffer_tx_init(softbuffer_tx[i], cell.nof_prb)) {
ERROR("Error initiating softbuffer_tx");
goto quit;
}
softbuffer_rx[i] = (srsran_softbuffer_rx_t*)calloc(sizeof(srsran_softbuffer_rx_t), 1);
if (!softbuffer_rx[i]) {
ERROR("Error allocating softbuffer_rx");
goto quit;
}
if (srsran_softbuffer_rx_init(softbuffer_rx[i], cell.nof_prb)) {
ERROR("Error initiating softbuffer_rx");
goto quit;
}
data_tx[i] = srsran_vec_u8_malloc(MAX_DATABUFFER_SIZE);
if (!data_tx[i]) {
ERROR("Error allocating data tx");
goto quit;
}
data_rx[i] = srsran_vec_u8_malloc(MAX_DATABUFFER_SIZE);
if (!data_rx[i]) {
ERROR("Error allocating data tx");
goto quit;
}
}
/*
* Initialise eNb
*/
if (srsran_enb_dl_init(enb_dl, signal_buffer, cell.nof_prb)) {
ERROR("Error initiating eNb downlink");
goto quit;
}
if (srsran_enb_dl_set_cell(enb_dl, cell)) {
ERROR("Error setting eNb DL cell");
goto quit;
}
/*
* Initialise UE
*/
if (srsran_ue_dl_init(ue_dl, signal_buffer, cell.nof_prb, nof_rx_ant)) {
ERROR("Error initiating UE downlink");
goto quit;
}
if (srsran_ue_dl_set_cell(ue_dl, cell)) {
ERROR("Error setting UE downlink cell");
goto quit;
}
/*
* Create PDCCH Allocations
*/
uint32_t nof_locations[SRSRAN_NOF_SF_X_FRAME];
srsran_dci_location_t dci_locations[SRSRAN_NOF_SF_X_FRAME][SRSRAN_MAX_CANDIDATES_UE];
uint32_t location_counter = 0;
for (uint32_t i = 0; i < SRSRAN_NOF_SF_X_FRAME; i++) {
srsran_dl_sf_cfg_t sf_cfg_dl;
ZERO_OBJECT(sf_cfg_dl);
sf_cfg_dl.tti = i;
sf_cfg_dl.cfi = cfi;
sf_cfg_dl.sf_type = SRSRAN_SF_NORM;
nof_locations[i] =
srsran_pdcch_ue_locations(&enb_dl->pdcch, &sf_cfg_dl, dci_locations[i], SRSRAN_MAX_CANDIDATES_UE, rnti);
location_counter += nof_locations[i];
}
if (nof_subframes == 0) {
nof_subframes = location_counter;
}
/*
* DCI Configuration
*/
srsran_dci_dl_t dci = {};
srsran_dci_cfg_t dci_cfg = {};
dci_cfg.srs_request_enabled = false;
dci_cfg.ra_format_enabled = false;
dci_cfg.multiple_csi_request_enabled = false;
dci_cfg.is_not_ue_ss = false;
// DCI Fixed values
dci.pid = 0;
dci.pinfo = 0;
dci.rnti = rnti;
dci.is_tdd = false;
dci.is_dwpts = false;
dci.is_ra_order = false;
dci.tb_cw_swap = false;
dci.pconf = false;
dci.power_offset = false;
dci.tpc_pucch = false;
dci.ra_preamble = false;
dci.ra_mask_idx = false;
dci.srs_request = false;
dci.srs_request_present = false;
if (cross_carrier_indicator >= 0) {
dci.cif_present = true;
dci_cfg.cif_enabled = true;
dci.cif = (uint32_t)cross_carrier_indicator;
} else {
dci.cif_present = false;
dci_cfg.cif_enabled = false;
}
// Set PRB Allocation type
#if 0
dci.alloc_type = SRSRAN_RA_ALLOC_TYPE2;
uint32_t n_prb = 1; ///< Number of PRB
uint32_t s_prb = 0; ///< Start
dci.type2_alloc.riv = srsran_ra_type2_to_riv(n_prb, s_prb, cell.nof_prb);
#else
dci.alloc_type = SRSRAN_RA_ALLOC_TYPE0;
dci.type0_alloc.rbg_bitmask = 0xffffffff; // All PRB
#endif
// Set TB
if (transmission_mode < SRSRAN_TM3) {
dci.format = (dci.alloc_type == SRSRAN_RA_ALLOC_TYPE2) ? SRSRAN_DCI_FORMAT1A : SRSRAN_DCI_FORMAT1;
dci.tb[0].mcs_idx = mcs;
dci.tb[0].rv = 0;
dci.tb[0].ndi = 0;
dci.tb[0].cw_idx = 0;
dci.tb[1].mcs_idx = 0;
dci.tb[1].rv = 1;
} else if (transmission_mode == SRSRAN_TM3) {
dci.format = SRSRAN_DCI_FORMAT2A;
for (uint32_t i = 0; i < SRSRAN_MAX_TB; i++) {
dci.tb[i].mcs_idx = mcs;
dci.tb[i].rv = 0;
dci.tb[i].ndi = 0;
dci.tb[i].cw_idx = i;
}
} else if (transmission_mode == SRSRAN_TM4) {
dci.format = SRSRAN_DCI_FORMAT2;
dci.pinfo = 0;
for (uint32_t i = 0; i < SRSRAN_MAX_TB; i++) {
dci.tb[i].mcs_idx = mcs;
dci.tb[i].rv = 0;
dci.tb[i].ndi = 0;
dci.tb[i].cw_idx = i;
}
} else {
ERROR("Wrong transmission mode (%d)", transmission_mode);
}
/*
* Loop
*/
INFO("--- Starting test ---");
for (uint32_t sf_idx = 0; sf_idx < nof_subframes; sf_idx++) {
/* Generate random data */
for (int j = 0; j < SRSRAN_MAX_TB; j++) {
for (int i = 0; i < MAX_DATABUFFER_SIZE; i++) {
data_tx[j][i] = (uint8_t)srsran_random_uniform_int_dist(random, 0, 255);
}
}
/*
* Run eNodeB
*/
srsran_dl_sf_cfg_t sf_cfg_dl = {};
sf_cfg_dl.tti = sf_idx % 10;
sf_cfg_dl.cfi = cfi;
sf_cfg_dl.sf_type = SRSRAN_SF_NORM;
// Set DCI Location
dci.location = dci_locations[sf_idx % 10][(sf_idx / 10) % nof_locations[sf_idx % 10]];
if (cell.nof_prb == 6) {
for (int i = 0; i < SRSRAN_MAX_TB; i++) {
dci.tb[i].mcs_idx = (sf_idx % 5 == 0) ? 0 : mcs;
}
} else if (cell.nof_prb == 15) {
for (int i = 0; i < SRSRAN_MAX_TB; i++) {
dci.tb[i].mcs_idx = (sf_idx % 5 == 0) ? SRSRAN_MIN(mcs, 27) : mcs;
}
}
INFO("--- Process eNb ---");
gettimeofday(&t[1], NULL);
if (work_enb(enb_dl, &sf_cfg_dl, &dci_cfg, &dci, softbuffer_tx, data_tx)) {
goto quit;
}
gettimeofday(&t[2], NULL);
get_time_interval(t);
pdsch_encode_us += (size_t)(t[0].tv_sec * 1e6 + t[0].tv_usec);
// MIMO perfect crossed channel
if (transmission_mode > 1) {
for (int i = 0; i < SRSRAN_SF_LEN_PRB(cell.nof_prb); i++) {
cf_t x0 = signal_buffer[0][i];
cf_t x1 = signal_buffer[1][i];
cf_t y0 = x0 + x1;
cf_t y1 = x0 - x1;
signal_buffer[0][i] = y0;
signal_buffer[1][i] = y1;
}
}
/*
* Run UE
*/
INFO("--- Process UE ---");
gettimeofday(&t[1], NULL);
srsran_ue_dl_cfg_t ue_dl_cfg = {};
srsran_dci_dl_t dci_dl[SRSRAN_MAX_DCI_MSG] = {};
ue_dl_cfg.cfg.tm = transmission_mode;
ue_dl_cfg.cfg.pdsch.p_a = 0.0;
ue_dl_cfg.cfg.pdsch.power_scale = false;
ue_dl_cfg.cfg.pdsch.decoder_type = SRSRAN_MIMO_DECODER_MMSE;
ue_dl_cfg.cfg.pdsch.max_nof_iterations = 10;
ue_dl_cfg.cfg.pdsch.meas_time_en = false;
ue_dl_cfg.chest_cfg.filter_coef[0] = 4;
ue_dl_cfg.chest_cfg.filter_coef[1] = 1;
ue_dl_cfg.chest_cfg.filter_type = SRSRAN_CHEST_FILTER_GAUSS;
ue_dl_cfg.chest_cfg.noise_alg = SRSRAN_NOISE_ALG_REFS;
ue_dl_cfg.chest_cfg.rsrp_neighbour = false;
ue_dl_cfg.chest_cfg.estimator_alg = SRSRAN_ESTIMATOR_ALG_AVERAGE;
ue_dl_cfg.chest_cfg.cfo_estimate_enable = false;
ue_dl_cfg.chest_cfg.cfo_estimate_sf_mask = false;
ue_dl_cfg.chest_cfg.sync_error_enable = false;
ue_dl_cfg.cfg.dci = dci_cfg;
ue_dl_cfg.cfg.pdsch.use_tbs_index_alt = enable_256qam;
srsran_pdsch_res_t pdsch_res[SRSRAN_MAX_CODEWORDS];
for (int i = 0; i < SRSRAN_MAX_CODEWORDS; i++) {
pdsch_res[i].payload = data_rx[i];
pdsch_res[i].avg_iterations_block = 0.0f;
pdsch_res[i].crc = false;
ue_dl_cfg.cfg.pdsch.softbuffers.rx[i] = softbuffer_rx[i];
}
if (work_ue(ue_dl, &sf_cfg_dl, &ue_dl_cfg, dci_dl, sf_idx, pdsch_res)) {
goto quit;
}
gettimeofday(&t[2], NULL);
get_time_interval(t);
pdsch_decode_us += (size_t)(t[0].tv_sec * 1e6 + t[0].tv_usec);
for (int i = 0; i < SRSRAN_MAX_TB; i++) {
if (ue_dl_cfg.cfg.pdsch.grant.tb[i].enabled) {
if (check_evm(enb_dl, ue_dl, &ue_dl_cfg, i)) {
count_failures++;
} else if (check_softbits(enb_dl, ue_dl, &ue_dl_cfg, sf_idx, i) != SRSRAN_SUCCESS) {
printf("TB%d: The received softbits in subframe %d DO NOT match the encoded bits (crc=%d)\n",
i,
sf_idx,
pdsch_res[i].crc);
srsran_vec_fprint_byte(stdout, (uint8_t*)enb_dl->pdsch.e[i], ue_dl_cfg.cfg.pdsch.grant.tb[i].nof_bits / 8);
srsran_vec_fprint_byte(stdout, (uint8_t*)ue_dl->pdsch.e[i], ue_dl_cfg.cfg.pdsch.grant.tb[i].nof_bits / 8);
count_failures++;
} else if (!pdsch_res[i].crc ||
memcmp(data_tx[i], data_rx[i], (uint32_t)ue_dl_cfg.cfg.pdsch.grant.tb[i].tbs / 8) != 0) {
printf("UE Failed decoding tb %d in subframe %d. crc=%d; Bytes:\n", i, sf_idx, pdsch_res[i].crc);
srsran_vec_fprint_byte(stdout, data_tx[i], (uint32_t)ue_dl_cfg.cfg.pdsch.grant.tb[i].tbs / 8);
srsran_vec_fprint_byte(stdout, data_rx[i], (uint32_t)ue_dl_cfg.cfg.pdsch.grant.tb[i].tbs / 8);
count_failures++;
} else {
// Decoded Ok
rx_nof_bits += ue_dl_cfg.cfg.pdsch.grant.tb[i].tbs;
}
count_tbs++;
tx_nof_bits += ue_dl_cfg.cfg.pdsch.grant.tb[i].tbs;
}
}
}
printf("Finished! The UE failed decoding %d of %d transport blocks.\n", count_failures, count_tbs);
if (!count_failures) {
ret = SRSRAN_SUCCESS;
}
printf("%zd were transmitted, %zd bits were received.\n", tx_nof_bits, rx_nof_bits);
printf("[Rates in Mbps] Granted Processed\n");
printf(" eNb: %5.1f %5.1f\n",
(float)tx_nof_bits / (float)nof_subframes / 1000.0f,
(float)rx_nof_bits / pdsch_encode_us);
printf(" UE: %5.1f %5.1f\n",
(float)rx_nof_bits / (float)nof_subframes / 1000.0f,
(float)rx_nof_bits / pdsch_decode_us);
printf("BLER: %5.1f%%\n", (float)count_failures / (float)count_tbs * 100.0f);
quit:
srsran_enb_dl_free(enb_dl);
srsran_ue_dl_free(ue_dl);
srsran_random_free(random);
for (int i = 0; i < cell.nof_ports; i++) {
if (signal_buffer[i]) {
free(signal_buffer[i]);
}
}
for (int i = 0; i < SRSRAN_MAX_TB; i++) {
if (softbuffer_tx[i]) {
srsran_softbuffer_tx_free(softbuffer_tx[i]);
free(softbuffer_tx[i]);
}
if (softbuffer_rx[i]) {
srsran_softbuffer_rx_free(softbuffer_rx[i]);
free(softbuffer_rx[i]);
}
if (data_tx[i]) {
free(data_tx[i]);
}
if (data_rx[i]) {
free(data_rx[i]);
}
}
if (enb_dl) {
free(enb_dl);
}
if (ue_dl) {
free(ue_dl);
}
if (ret) {
printf("Error\n");
} else {
printf("Ok\n");
}
exit(ret);
}
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