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moving psbch DMRS modulation function away from gold sequence file

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This commit is contained in:
francescomani
2024-04-14 16:15:20 +02:00
parent f042bd7a2d
commit d7a2795432
3 changed files with 37 additions and 38 deletions
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openair1/PHY/INIT/nr_init_ue.c
+37
View File
@@ -32,6 +32,7 @@
#include "PHY/NR_REFSIG/ul_ref_seq_nr.h"
#include "PHY/NR_REFSIG/refsig_defs_ue.h"
#include "PHY/NR_REFSIG/nr_refsig.h"
#include "PHY/NR_REFSIG/nr_mod_table.h"
#include "openair2/COMMON/prs_nr_paramdef.h"
#include "SCHED_NR_UE/harq_nr.h"
@@ -713,6 +714,42 @@ void phy_term_nr_top(void)
free_context_synchro_nr();
}
static void sl_generate_psbch_dmrs_qpsk_sequences(PHY_VARS_NR_UE *UE, struct complex16 *modulated_dmrs_sym, uint16_t slss_id)
{
uint8_t idx = 0;
uint32_t *sl_dmrs_sequence = UE->SL_UE_PHY_PARAMS.init_params.psbch_dmrs_gold_sequences[slss_id];
c16_t *mod_table = (c16_t *)nr_qpsk_mod_table;
#ifdef SL_DEBUG_INIT
printf("SIDELINK INIT: PSBCH DMRS Generation with slss_id:%d\n", slss_id);
#endif
/// QPSK modulation
for (int m = 0; m < SL_NR_NUM_PSBCH_DMRS_RE; m++) {
idx = (((sl_dmrs_sequence[(m << 1) >> 5]) >> ((m << 1) & 0x1f)) & 3);
modulated_dmrs_sym[m].r = mod_table[idx].r;
modulated_dmrs_sym[m].i = mod_table[idx].i;
#ifdef SL_DEBUG_INIT_DATA
printf("m:%d gold seq: %d b0-b1: %d-%d DMRS Symbols: %d %d\n",
m,
sl_dmrs_sequence[(m << 1) >> 5],
(((sl_dmrs_sequence[(m << 1) >> 5]) >> ((m << 1) & 0x1f)) & 1),
(((sl_dmrs_sequence[((m << 1) + 1) >> 5]) >> (((m << 1) + 1) & 0x1f)) & 1),
modulated_dmrs_sym[m].r,
modulated_dmrs_sym[m].i);
printf("idx:%d, qpsk_table.r:%d, qpsk_table.i:%d\n", idx, mod_table[idx].r, mod_table[idx].i);
#endif
}
#ifdef SL_DUMP_INIT_SAMPLES
char filename[40], varname[25];
sprintf(filename, "sl_psbch_dmrs_slssid_%d.m", slss_id);
sprintf(varname, "sl_dmrs_id_%d.m", slss_id);
LOG_M(filename, varname, (void *)modulated_dmrs_sym, SL_NR_NUM_PSBCH_DMRS_RE, 1, 1);
#endif
}
void sl_ue_phy_init(PHY_VARS_NR_UE *UE)
{
uint16_t scaling_value = ONE_OVER_SQRT2_Q15;
openair1/PHY/NR_REFSIG/nr_gold_ue.c
-37
View File
@@ -20,7 +20,6 @@
*/
#include "refsig_defs_ue.h"
#include "PHY/NR_REFSIG/nr_mod_table.h"
void nr_gold_pbch(PHY_VARS_NR_UE* ue)
{
@@ -174,39 +173,3 @@ void sl_init_psbch_dmrs_gold_sequences(PHY_VARS_NR_UE *UE)
}
}
}
void sl_generate_psbch_dmrs_qpsk_sequences(PHY_VARS_NR_UE *UE, struct complex16 *modulated_dmrs_sym, uint16_t slss_id)
{
uint8_t idx = 0;
uint32_t *sl_dmrs_sequence = UE->SL_UE_PHY_PARAMS.init_params.psbch_dmrs_gold_sequences[slss_id];
c16_t *mod_table = (c16_t *)nr_qpsk_mod_table;
#ifdef SL_DEBUG_INIT
printf("SIDELINK INIT: PSBCH DMRS Generation with slss_id:%d\n", slss_id);
#endif
/// QPSK modulation
for (int m = 0; m < SL_NR_NUM_PSBCH_DMRS_RE; m++) {
idx = (((sl_dmrs_sequence[(m << 1) >> 5]) >> ((m << 1) & 0x1f)) & 3);
modulated_dmrs_sym[m].r = mod_table[idx].r;
modulated_dmrs_sym[m].i = mod_table[idx].i;
#ifdef SL_DEBUG_INIT_DATA
printf("m:%d gold seq: %d b0-b1: %d-%d DMRS Symbols: %d %d\n",
m,
sl_dmrs_sequence[(m << 1) >> 5],
(((sl_dmrs_sequence[(m << 1) >> 5]) >> ((m << 1) & 0x1f)) & 1),
(((sl_dmrs_sequence[((m << 1) + 1) >> 5]) >> (((m << 1) + 1) & 0x1f)) & 1),
modulated_dmrs_sym[m].r,
modulated_dmrs_sym[m].i);
printf("idx:%d, qpsk_table.r:%d, qpsk_table.i:%d\n", idx, mod_table[idx].r, mod_table[idx].i);
#endif
}
#ifdef SL_DUMP_INIT_SAMPLES
char filename[40], varname[25];
sprintf(filename, "sl_psbch_dmrs_slssid_%d.m", slss_id);
sprintf(varname, "sl_dmrs_id_%d.m", slss_id);
LOG_M(filename, varname, (void *)modulated_dmrs_sym, SL_NR_NUM_PSBCH_DMRS_RE, 1, 1);
#endif
}
openair1/PHY/NR_REFSIG/refsig_defs_ue.h
-1
View File
@@ -70,5 +70,4 @@ void sl_generate_pss(SL_NR_UE_INIT_PARAMS_t *sl_init_params, uint8_t n_sl_id2, u
void sl_generate_pss_ifft_samples(sl_nr_ue_phy_params_t *sl_ue_params, SL_NR_UE_INIT_PARAMS_t *sl_init_params);
void sl_generate_sss(SL_NR_UE_INIT_PARAMS_t *sl_init_params, uint16_t slss_id, uint16_t scaling);
void sl_init_psbch_dmrs_gold_sequences(PHY_VARS_NR_UE *UE);
void sl_generate_psbch_dmrs_qpsk_sequences(PHY_VARS_NR_UE *UE, struct complex16 *modulated_dmrs_sym, uint16_t slss_id);
#endif