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Make nb_antenna as a input parameter to generate_srs_nr()

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- We use the same function at gNB and UE.
 - We always use nb_antennas_tx to check the max possible number of ports (which is wrong).
 - At gNB, we should use nb_antennas_rx and at the UE, we should use nb_antennas_tx.
This commit is contained in:
Rakesh Mundlamuri
2026-01-09 20:49:46 +05:30
parent dea4508f89
commit f84ed0bbcf
4 changed files with 16 additions and 5 deletions
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openair1/PHY/nr_phy_common/inc/nr_phy_common.h
+2 -1
View File
@@ -372,7 +372,8 @@ bool generate_srs_nr(const NR_DL_FRAME_PARMS *frame_parms,
nr_srs_info_t *nr_srs_info,
int16_t amp,
frame_t frame_number,
slot_t slot_number);
slot_t slot_number,
uint8_t nb_antennas);
void nr_generate_csi_rs(const NR_DL_FRAME_PARMS *frame_parms,
const csi_mapping_parms_t *phy_csi_parms,
const int16_t amp,
openair1/PHY/nr_phy_common/src/nr_phy_common_srs.c
+3 -2
View File
@@ -146,11 +146,12 @@ bool generate_srs_nr(const NR_DL_FRAME_PARMS *frame_parms,
nr_srs_info_t *nr_srs_info,
int16_t amp,
frame_t frame_number,
slot_t slot_number)
slot_t slot_number,
uint8_t nb_antennas)
{
uint8_t K_TC = 2 << nr_srs_info->comb_size;
/* Number of antenna ports (M) can't be higher than number of physical antennas (N): M <= N */
int N_ap = nr_srs_info->n_srs_ports > frame_parms->nb_antennas_tx ? frame_parms->nb_antennas_tx : nr_srs_info->n_srs_ports;
int N_ap = nr_srs_info->n_srs_ports > nb_antennas ? nb_antennas : nr_srs_info->n_srs_ports;
uint8_t l0 = frame_parms->symbols_per_slot - 1 - nr_srs_info->l_offset; // Starting symbol position in the time domain
uint8_t n_SRS_cs_max = srs_max_number_cs[nr_srs_info->comb_size];
int m_SRS_b = get_m_srs(nr_srs_info->C_SRS, nr_srs_info->B_SRS); // Number of resource blocks