5g-team
/
srsRAN_4G
mirror of https://github.com/pvnis/srsRAN_4G.git
2
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Reduced SRS test cases to SF index 0

Browse Source
master
Xavier Arteaga 4 years ago committed by Xavier Arteaga
parent ee6f24befe
commit 87edafeddb
1 changed files with 42 additions and 29 deletions
Show Stats Download Patch File Download Diff File

71
lib/src/phy/ch_estimation/test/chest_test_srs.c
Unescape Escape View File

@ -40,13 +40,20 @@ static srslte_refsignal_srs_cfg_t srs_cfg = {};
static uint32_t test_counter = 0;
static float snr_db = 10.0f;
static float snr_db = 20.0f;
static float n0_dbm = 30.0f - 20.0f;
static srslte_channel_awgn_t channel = {};
#define CHEST_TEST_SRS_SNR_DB_TOLERANCE 10.0f
#define CHEST_TEST_SRS_TA_US_TOLERANCE 0.5f
// SRS index and sub-frame configuration possible values limited to SF=0
#define I_SRS_COUNT 9
static const uint32_t i_srs_values[I_SRS_COUNT] = {0, 2, 7, 17, 37, 77, 157, 317, 637};
#define SF_CONFIG_COUNT 9
static const uint32_t sf_config_values[SF_CONFIG_COUNT] = {0, 1, 3, 7, 9, 13, 14};
void usage(char* prog)
{
printf("Usage: %s [recov]\n", prog);
@ -133,37 +140,39 @@ int srs_test_context_run(srs_test_context_t* q)
srs_cfg.n_srs,
srs_cfg.I_srs);
for (ul_sf_cfg.tti = 0; ul_sf_cfg.tti < SRSLTE_NOF_SF_X_FRAME; ul_sf_cfg.tti++) {
// Set resource grid to zero
srslte_vec_cf_zero(q->sf_symbols, q->sf_size);
// Assert SRS transmission SF
TESTASSERT(srslte_refsignal_srs_send_cs(srs_cfg.subframe_config, ul_sf_cfg.tti) == 1);
TESTASSERT(srslte_refsignal_srs_send_cs(srs_cfg.subframe_config, ul_sf_cfg.tti) == 1);
// Put sounding reference signals
TESTASSERT(srslte_refsignal_srs_put(
&q->refsignal_ul, &srs_cfg, ul_sf_cfg.tti, q->srs_pregen.r[ul_sf_cfg.tti], q->sf_symbols) ==
SRSLTE_SUCCESS);
// Set resource grid to zero
srslte_vec_cf_zero(q->sf_symbols, q->sf_size);
// Apply AWGN channel
if (!isnan(snr_db) && !isinf(snr_db)) {
srslte_channel_awgn_run_c(&channel, q->sf_symbols, q->sf_symbols, q->sf_size);
}
// Put sounding reference signals
TESTASSERT(srslte_refsignal_srs_put(
&q->refsignal_ul, &srs_cfg, ul_sf_cfg.tti, q->srs_pregen.r[ul_sf_cfg.tti], q->sf_symbols) ==
SRSLTE_SUCCESS);
// Estimate
TESTASSERT(srslte_chest_ul_estimate_srs(
&q->chest_ul, &ul_sf_cfg, &srs_cfg, &dmrs_pusch_cfg, q->sf_symbols, &q->chest_ul_res) ==
SRSLTE_SUCCESS);
INFO("RESULTS: tti=%d; snr_db=%+.1f; noise_estimate_dbm=%+.1f; ta_us=%+.1f;\n",
ul_sf_cfg.tti,
q->chest_ul_res.snr_db,
q->chest_ul_res.noise_estimate_dbm,
q->chest_ul_res.ta_us);
// Assert SRS measurements
TESTASSERT(fabsf(q->chest_ul_res.snr_db - snr_db) < CHEST_TEST_SRS_SNR_DB_TOLERANCE);
TESTASSERT(fabsf(q->chest_ul_res.noise_estimate_dbm - n0_dbm) < CHEST_TEST_SRS_SNR_DB_TOLERANCE);
TESTASSERT(fabsf(q->chest_ul_res.ta_us) < CHEST_TEST_SRS_TA_US_TOLERANCE);
// Apply AWGN channel
if (!isnan(snr_db) && !isinf(snr_db)) {
srslte_channel_awgn_run_c(&channel, q->sf_symbols, q->sf_symbols, q->sf_size);
}
// Estimate
TESTASSERT(srslte_chest_ul_estimate_srs(
&q->chest_ul, &ul_sf_cfg, &srs_cfg, &dmrs_pusch_cfg, q->sf_symbols, &q->chest_ul_res) ==
SRSLTE_SUCCESS);
INFO("RESULTS: tti=%d; snr_db=%+.1f; noise_estimate_dbm=%+.1f; ta_us=%+.1f;\n",
ul_sf_cfg.tti,
q->chest_ul_res.snr_db,
q->chest_ul_res.noise_estimate_dbm,
q->chest_ul_res.ta_us);
// Assert SRS measurements
TESTASSERT(fabsf(q->chest_ul_res.snr_db - snr_db) < CHEST_TEST_SRS_SNR_DB_TOLERANCE);
TESTASSERT(fabsf(q->chest_ul_res.noise_estimate_dbm - n0_dbm) < CHEST_TEST_SRS_SNR_DB_TOLERANCE);
TESTASSERT(fabsf(q->chest_ul_res.ta_us) < CHEST_TEST_SRS_TA_US_TOLERANCE);
return SRSLTE_SUCCESS;
}
@ -217,9 +226,13 @@ int main(int argc, char** argv)
printf("Failed setting context: bw_cfg=%d; B=%d; n_srs=%d;\n", srs_cfg.bw_cfg, srs_cfg.B, srs_cfg.n_srs);
}
for (srs_cfg.subframe_config = 0; srs_cfg.subframe_config < 16 && !ret; srs_cfg.subframe_config++) {
for (uint32_t sf_config = 0; sf_config < SF_CONFIG_COUNT && !ret; sf_config++) {
srs_cfg.subframe_config = sf_config_values[sf_config];
for (srs_cfg.b_hop = 0; srs_cfg.b_hop < 4 && !ret; srs_cfg.b_hop++) {
for (srs_cfg.I_srs = 0; srs_cfg.I_srs < 1024 && !ret; srs_cfg.I_srs += 123) {
for (uint32_t i_srs = 0; i_srs < I_SRS_COUNT && !ret; i_srs++) {
srs_cfg.I_srs = i_srs_values[i_srs];
// Run actual test
ret = srs_test_context_run(&context);
if (!ret) {

Write Preview
Loading…
Cancel
Save