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Fix SRS power computation

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This commit is contained in:
rmagueta
2026-02-11 11:24:21 +00:00
parent 9777d23173
commit b2093089ab
1 changed files with 1 additions and 10 deletions
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openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
+1 -10
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@@ -992,17 +992,8 @@ int nr_srs_channel_estimation(int ant,
// Compute wideband SNR on the symbol 0
int tot_subcarriers = m_SRS_b * NR_NB_SC_PER_RB;
uint16_t subcarrier_abs = first_subcarrier + nr_srs_info->k_0_p[p_index][0];
if (subcarrier_abs + tot_subcarriers < ofdm_symbol_size_half) {
*signal_power = signal_energy_nodc(&srs_estimated_channel_freq[subcarrier_abs], tot_subcarriers) / tot_subcarriers;
} else {
int size1 = ofdm_symbol_size_half - subcarrier_abs;
int size2 = tot_subcarriers - size1;
uint64_t signal_power_p1 = signal_energy_nodc(&srs_estimated_channel_freq[subcarrier_abs], size1) * size1;
uint64_t signal_power_p2 = signal_energy_nodc(&srs_estimated_channel_freq[ofdm_symbol_size_half], size2) * size2;
*signal_power = (signal_power_p1 + signal_power_p2) / tot_subcarriers;
}
*signal_power = signal_energy_nodc(&srs_estimated_channel_freq[subcarrier_abs], tot_subcarriers);
if (*signal_power == 0) {
LOG_W(NR_PHY, "Received SRS signal power is 0\n");