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srsLTE
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Reduced SRS test cases to SF index 0

This commit is contained in:
Xavier Arteaga 2020-07-29 16:07:59 +02:00 committed by Xavier Arteaga
parent ee6f24befe
commit 87edafeddb
1 changed files with 42 additions and 29 deletions
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71
lib/src/phy/ch_estimation/test/chest_test_srs.c
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@ -40,13 +40,20 @@ static srslte_refsignal_srs_cfg_t srs_cfg = {};
static uint32_t test_counter = 0; 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 float n0_dbm = 30.0f - 20.0f;
static srslte_channel_awgn_t channel = {}; static srslte_channel_awgn_t channel = {};
#define CHEST_TEST_SRS_SNR_DB_TOLERANCE 10.0f #define CHEST_TEST_SRS_SNR_DB_TOLERANCE 10.0f
#define CHEST_TEST_SRS_TA_US_TOLERANCE 0.5f #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) void usage(char* prog)
{ {
printf("Usage: %s [recov]\n", 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.n_srs,
srs_cfg.I_srs); srs_cfg.I_srs);
for (ul_sf_cfg.tti = 0; ul_sf_cfg.tti < SRSLTE_NOF_SF_X_FRAME; ul_sf_cfg.tti++) { // Assert SRS transmission SF
// Set resource grid to zero TESTASSERT(srslte_refsignal_srs_send_cs(srs_cfg.subframe_config, ul_sf_cfg.tti) == 1);
srslte_vec_cf_zero(q->sf_symbols, q->sf_size); TESTASSERT(srslte_refsignal_srs_send_cs(srs_cfg.subframe_config, ul_sf_cfg.tti) == 1);
// Put sounding reference signals // Set resource grid to zero
TESTASSERT(srslte_refsignal_srs_put( srslte_vec_cf_zero(q->sf_symbols, q->sf_size);
&q->refsignal_ul, &srs_cfg, ul_sf_cfg.tti, q->srs_pregen.r[ul_sf_cfg.tti], q->sf_symbols) ==
SRSLTE_SUCCESS);
// Apply AWGN channel // Put sounding reference signals
if (!isnan(snr_db) && !isinf(snr_db)) { TESTASSERT(srslte_refsignal_srs_put(
srslte_channel_awgn_run_c(&channel, q->sf_symbols, q->sf_symbols, q->sf_size); &q->refsignal_ul, &srs_cfg, ul_sf_cfg.tti, q->srs_pregen.r[ul_sf_cfg.tti], q->sf_symbols) ==
} SRSLTE_SUCCESS);
// Estimate // Apply AWGN channel
TESTASSERT(srslte_chest_ul_estimate_srs( if (!isnan(snr_db) && !isinf(snr_db)) {
&q->chest_ul, &ul_sf_cfg, &srs_cfg, &dmrs_pusch_cfg, q->sf_symbols, &q->chest_ul_res) == srslte_channel_awgn_run_c(&channel, q->sf_symbols, q->sf_symbols, q->sf_size);
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);
} }
// 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; 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); 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.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 // Run actual test
ret = srs_test_context_run(&context); ret = srs_test_context_run(&context);
if (!ret) { if (!ret) {