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Generate SRS sequence only when needed

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This commit is contained in:
Roberto Louro Magueta
2022-12-23 10:39:11 +00:00
parent c6bfb97988
commit a7db9280b8
2 changed files with 18 additions and 1 deletions
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openair1/PHY/defs_nr_common.h
+1
View File
@@ -206,6 +206,7 @@ typedef struct {
uint8_t k_0_p[MAX_NUM_NR_SRS_AP][MAX_NUM_NR_SRS_SYMBOLS];
uint8_t srs_generated_signal_bits;
int32_t **srs_generated_signal;
nfapi_nr_srs_pdu_t srs_pdu;
} nr_srs_info_t;
typedef struct {
openair1/SCHED_NR/phy_procedures_nr_gNB.c
+17 -1
View File
@@ -670,6 +670,20 @@ int fill_srs_channel_matrix(uint8_t *channel_matrix,
return 0;
}
int check_srs_pdu(const nfapi_nr_srs_pdu_t *srs_pdu, nfapi_nr_srs_pdu_t *saved_srs_pdu)
{
if (saved_srs_pdu->bwp_start == srs_pdu->bwp_start &&
saved_srs_pdu->bwp_size == srs_pdu->bwp_size &&
saved_srs_pdu->num_ant_ports == srs_pdu->num_ant_ports &&
saved_srs_pdu->time_start_position == srs_pdu->time_start_position &&
saved_srs_pdu->num_symbols == srs_pdu->num_symbols &&
saved_srs_pdu->config_index == srs_pdu->config_index) {
return 1;
}
*saved_srs_pdu = *srs_pdu;
return 0;
}
int phy_procedures_gNB_uespec_RX(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx) {
/* those variables to log T_GNB_PHY_PUCCH_PUSCH_IQ only when we try to decode */
int pucch_decode_done = 0;
@@ -875,7 +889,9 @@ int phy_procedures_gNB_uespec_RX(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx) {
int8_t snr;
start_meas(&gNB->generate_srs_stats);
generate_srs_nr(srs_pdu, frame_parms, gNB->nr_srs_info[i]->srs_generated_signal, 0, gNB->nr_srs_info[i], AMP, frame_rx, slot_rx);
if (check_srs_pdu(srs_pdu, &gNB->nr_srs_info[i]->srs_pdu) == 0) {
generate_srs_nr(srs_pdu, frame_parms, gNB->nr_srs_info[i]->srs_generated_signal, 0, gNB->nr_srs_info[i], AMP, frame_rx, slot_rx);
}
stop_meas(&gNB->generate_srs_stats);
start_meas(&gNB->get_srs_signal_stats);