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set correct type on qpsk modulation table

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This commit is contained in:
Laurent THOMAS
2025-01-28 09:50:29 +01:00
parent c73353bed3
commit f272d7d1cc
4 changed files with 31 additions and 45 deletions
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openair1/PHY/NR_REFSIG/nr_gen_mod_table.c
+3 -3
View File
@@ -21,7 +21,7 @@
#include "nr_refsig.h"
#include "nr_mod_table.h"
short nr_qpsk_mod_table[8];
c16_t nr_qpsk_mod_table[4];
int32_t nr_16qam_mod_table[16];
simde__m128i nr_qpsk_byte_mod_table[2048];
@@ -43,8 +43,8 @@ void nr_generate_modulation_table() {
// QPSK
for (i=0; i<4; i++) {
nr_qpsk_mod_table[i*2] = (short)(1-2*(i&1))*val*sqrt2*sqrt2;
nr_qpsk_mod_table[i*2+1] = (short)(1-2*((i>>1)&1))*val*sqrt2*sqrt2;
nr_qpsk_mod_table[i].r = (short)(1 - 2 * (i & 1)) * val * sqrt2 * sqrt2;
nr_qpsk_mod_table[i].i = (short)(1 - 2 * ((i >> 1) & 1)) * val * sqrt2 * sqrt2;
//printf("%d j%d\n",nr_qpsk_mod_table[i*2],nr_qpsk_mod_table[i*2+1]);
}
openair1/PHY/NR_REFSIG/nr_mod_table.h
+1 -2
View File
@@ -24,12 +24,11 @@
#define NR_MOD_TABLE_SIZE_SHORT 686
#define NR_MOD_TABLE_BPSK_OFFSET 1
#define NR_MOD_TABLE_QPSK_OFFSET 3
#define NR_MOD_TABLE_QAM16_OFFSET 7
#define NR_MOD_TABLE_QAM64_OFFSET 23
#define NR_MOD_TABLE_QAM256_OFFSET 87
extern short nr_qpsk_mod_table[8];
extern c16_t nr_qpsk_mod_table[4];
extern int32_t nr_16qam_mod_table[16];
#if defined(__SSE2__)
openair1/PHY/NR_TRANSPORT/nr_pbch.c
+22 -35
View File
@@ -36,13 +36,13 @@
#include "PHY/sse_intrin.h"
#include "executables/softmodem-common.h"
#include "openair1/PHY/NR_REFSIG/nr_refsig_common.h"
#include "openair1/PHY/NR_REFSIG/nr_mod_table.h"
#include "openair1/PHY/TOOLS/tools_defs.h"
//#define DEBUG_PBCH
//#define DEBUG_PBCH_ENCODING
//#define DEBUG_PBCH_DMRS
extern short nr_qpsk_mod_table[8];
const uint8_t nr_pbch_payload_interleaving_pattern[32] = {16, 23, 18, 17, 8, 30, 10, 6, 24, 7, 0, 5, 3, 2, 1, 4,
9, 11, 12, 13, 14, 15, 19, 20, 21, 22, 25, 26, 27, 28, 29, 31
};
@@ -56,7 +56,7 @@ void nr_generate_pbch_dmrs(uint32_t *gold_pbch_dmrs,
{
int k,l;
//int16_t a;
int16_t mod_dmrs[NR_PBCH_DMRS_LENGTH<<1];
c16_t mod_dmrs[NR_PBCH_DMRS_LENGTH];
uint8_t idx=0;
uint8_t nushift = config->cell_config.phy_cell_id.value &3;
LOG_D(PHY, "PBCH DMRS mapping started at symbol %d shift %d\n", ssb_start_symbol+1, nushift);
@@ -64,11 +64,16 @@ void nr_generate_pbch_dmrs(uint32_t *gold_pbch_dmrs,
/// QPSK modulation
for (int m=0; m<NR_PBCH_DMRS_LENGTH; m++) {
idx = (((gold_pbch_dmrs[(m<<1)>>5])>>((m<<1)&0x1f))&3);
mod_dmrs[m<<1] = nr_qpsk_mod_table[idx<<1];
mod_dmrs[(m<<1)+1] = nr_qpsk_mod_table[(idx<<1) + 1];
mod_dmrs[m] = nr_qpsk_mod_table[idx];
#ifdef DEBUG_PBCH_DMRS
printf("m %d idx %d gold seq %u b0-b1 %d-%d mod_dmrs %d %d\n", m, idx, gold_pbch_dmrs[(m<<1)>>5], (((gold_pbch_dmrs[(m<<1)>>5])>>((m<<1)&0x1f))&1),
(((gold_pbch_dmrs[((m<<1)+1)>>5])>>(((m<<1)+1)&0x1f))&1), mod_dmrs[(m<<1)], mod_dmrs[(m<<1)+1]);
printf("m %d idx %d gold seq %u b0-b1 %d-%d mod_dmrs %d %d\n",
m,
idx,
gold_pbch_dmrs[(m << 1) >> 5],
(((gold_pbch_dmrs[(m << 1) >> 5]) >> ((m << 1) & 0x1f)) & 1),
(((gold_pbch_dmrs[((m << 1) + 1) >> 5]) >> (((m << 1) + 1) & 0x1f)) & 1),
mod_dmrs[m].r,
mod_dmrs[m].i);
#endif
}
@@ -82,13 +87,7 @@ void nr_generate_pbch_dmrs(uint32_t *gold_pbch_dmrs,
#ifdef DEBUG_PBCH_DMRS
printf("m %d at k %d of l %d\n", m, k, l);
#endif
((int16_t *)txdataF)[(l*frame_parms->ofdm_symbol_size + k)<<1] = (amp * mod_dmrs[m<<1]) >> 15;
((int16_t *)txdataF)[((l*frame_parms->ofdm_symbol_size + k)<<1) + 1] = (amp * mod_dmrs[(m<<1) + 1]) >> 15;
#ifdef DEBUG_PBCH_DMRS
printf("(%d,%d)\n",
((int16_t *)txdataF)[(l*frame_parms->ofdm_symbol_size + k)<<1],
((int16_t *)txdataF)[((l*frame_parms->ofdm_symbol_size + k)<<1)+1]);
#endif
txdataF[l * frame_parms->ofdm_symbol_size + k] = c16mulRealShift(mod_dmrs[m], amp, 15);
k+=4;
if (k >= frame_parms->ofdm_symbol_size)
@@ -103,8 +102,7 @@ void nr_generate_pbch_dmrs(uint32_t *gold_pbch_dmrs,
#ifdef DEBUG_PBCH_DMRS
printf("m %d at k %d of l %d\n", m, k, l);
#endif
((int16_t *)txdataF)[(l*frame_parms->ofdm_symbol_size + k)<<1] = (amp * mod_dmrs[m<<1]) >> 15;
((int16_t *)txdataF)[((l*frame_parms->ofdm_symbol_size + k)<<1) + 1] = (amp * mod_dmrs[(m<<1) + 1]) >> 15;
txdataF[l * frame_parms->ofdm_symbol_size + k] = c16mulRealShift(mod_dmrs[m], amp, 15);
#ifdef DEBUG_PBCH_DMRS
printf("(%d,%d)\n",
((int16_t *)txdataF)[(l*frame_parms->ofdm_symbol_size + k)<<1],
@@ -124,13 +122,7 @@ void nr_generate_pbch_dmrs(uint32_t *gold_pbch_dmrs,
#ifdef DEBUG_PBCH_DMRS
printf("m %d at k %d of l %d\n", m, k, l);
#endif
((int16_t *)txdataF)[(l*frame_parms->ofdm_symbol_size + k)<<1] = (amp * mod_dmrs[m<<1]) >> 15;
((int16_t *)txdataF)[((l*frame_parms->ofdm_symbol_size + k)<<1) + 1] = (amp * mod_dmrs[(m<<1) + 1]) >> 15;
#ifdef DEBUG_PBCH_DMRS
printf("(%d,%d)\n",
((int16_t *)txdataF)[(l*frame_parms->ofdm_symbol_size + k)<<1],
((int16_t *)txdataF)[((l*frame_parms->ofdm_symbol_size + k)<<1)+1]);
#endif
txdataF[l * frame_parms->ofdm_symbol_size + k] = c16mulRealShift(mod_dmrs[m], amp, 15);
k+=4;
if (k >= frame_parms->ofdm_symbol_size)
@@ -346,14 +338,13 @@ void nr_generate_pbch(PHY_VARS_gNB *gNB,
printf("\n");
#endif
int16_t mod_pbch_e[NR_POLAR_PBCH_E];
c16_t mod_pbch_e[NR_POLAR_PBCH_E / 2];
/// QPSK modulation
for (int i=0; i<NR_POLAR_PBCH_E>>1; i++) {
int idx = ((pbch_e[(i << 1) >> 5] >> ((i << 1) & 0x1f)) & 3);
mod_pbch_e[i<<1] = nr_qpsk_mod_table[idx << 1];
mod_pbch_e[(i<<1)+1] = nr_qpsk_mod_table[(idx << 1) + 1];
mod_pbch_e[i] = nr_qpsk_mod_table[idx];
#ifdef DEBUG_PBCH
printf("i %d idx %d mod_pbch %d %d\n", i, idx, mod_pbch_e[2 * i], mod_pbch_e[2 * i + 1]);
printf("i %d idx %d mod_pbch %d %d\n", i, idx, mod_pbch_e[i].r, mod_pbch_e[i].i);
#endif
}
@@ -374,8 +365,7 @@ void nr_generate_pbch(PHY_VARS_gNB *gNB,
#ifdef DEBUG_PBCH
printf("m %d ssb_sc_idx %d at k %d of l %d\n", m, ssb_sc_idx, k, l);
#endif
((int16_t *)txdataF)[(l*frame_parms->ofdm_symbol_size + k)<<1] = (amp * mod_pbch_e[m<<1]) >> 15;
((int16_t *)txdataF)[((l*frame_parms->ofdm_symbol_size + k)<<1) + 1] = (amp * mod_pbch_e[(m<<1) + 1]) >> 15;
txdataF[l * frame_parms->ofdm_symbol_size + k] = c16mulRealShift(mod_pbch_e[m], amp, 15);
k++;
m++;
}
@@ -397,8 +387,7 @@ void nr_generate_pbch(PHY_VARS_gNB *gNB,
#ifdef DEBUG_PBCH
printf("m %d ssb_sc_idx %d at k %d of l %d\n", m, ssb_sc_idx, k, l);
#endif
((int16_t *)txdataF)[(l*frame_parms->ofdm_symbol_size + k)<<1] = (amp * mod_pbch_e[m<<1]) >> 15;
((int16_t *)txdataF)[((l*frame_parms->ofdm_symbol_size + k)<<1) + 1] = (amp * mod_pbch_e[(m<<1) + 1]) >> 15;
txdataF[l * frame_parms->ofdm_symbol_size + k] = c16mulRealShift(mod_pbch_e[m], amp, 15);
k++;
m++;
}
@@ -422,8 +411,7 @@ void nr_generate_pbch(PHY_VARS_gNB *gNB,
#ifdef DEBUG_PBCH
printf("m %d ssb_sc_idx %d at k %d of l %d\n", m, ssb_sc_idx, k, l);
#endif
((int16_t *)txdataF)[(l*frame_parms->ofdm_symbol_size + k)<<1] = (amp * mod_pbch_e[m<<1]) >> 15;
((int16_t *)txdataF)[((l*frame_parms->ofdm_symbol_size + k)<<1) + 1] = (amp * mod_pbch_e[(m<<1) + 1]) >> 15;
txdataF[l * frame_parms->ofdm_symbol_size + k] = c16mulRealShift(mod_pbch_e[m], amp, 15);
k++;
m++;
}
@@ -445,8 +433,7 @@ void nr_generate_pbch(PHY_VARS_gNB *gNB,
#ifdef DEBUG_PBCH
printf("m %d ssb_sc_idx %d at k %d of l %d\n", m, ssb_sc_idx, k, l);
#endif
((int16_t *)txdataF)[(l*frame_parms->ofdm_symbol_size + k)<<1] = (amp * mod_pbch_e[m<<1]) >> 15;
((int16_t *)txdataF)[((l*frame_parms->ofdm_symbol_size + k)<<1) + 1] = (amp * mod_pbch_e[(m<<1) + 1]) >> 15;
txdataF[l * frame_parms->ofdm_symbol_size + k] = c16mulRealShift(mod_pbch_e[m], amp, 15);
k++;
m++;
}
openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c
+5 -5
View File
@@ -94,7 +94,8 @@ int nr_prs_channel_estimation(uint8_t gNB_id,
int slot_prs =
(proc->nr_slot_rx - rep_num * prs_cfg->PRSResourceTimeGap + frame_params->slots_per_frame) % frame_params->slots_per_frame;
int16_t *rxF, *pil, mod_prs[NR_MAX_PRS_LENGTH << 1];
int16_t *rxF, *pil;
c16_t mod_prs[NR_MAX_PRS_LENGTH];
const int16_t *fl, *fm, *fmm, *fml, *fmr, *fr;
int16_t ch[2] = {0}, noiseFig[2] = {0};
int16_t k_prime = 0, k = 0;
@@ -138,8 +139,7 @@ int nr_prs_channel_estimation(uint8_t gNB_id,
for (int m = 0; m < num_pilots; m++)
{
idx = (((gold_prs[(m << 1) >> 5]) >> ((m << 1) & 0x1f)) & 3);
mod_prs[m<<1] = nr_qpsk_mod_table[idx<<1];
mod_prs[(m<<1)+1] = nr_qpsk_mod_table[(idx<<1) + 1];
mod_prs[m] = nr_qpsk_mod_table[idx];
}
for (rxAnt=0; rxAnt < frame_params->nb_antennas_rx; rxAnt++)
@@ -152,7 +152,7 @@ int nr_prs_channel_estimation(uint8_t gNB_id,
k = (prs_cfg->REOffset + k_prime) % prs_cfg->CombSize + prs_cfg->RBOffset * 12 + frame_params->first_carrier_offset;
// Channel estimation and interpolation
pil = (int16_t *)&mod_prs[0];
pil = (int16_t *)mod_prs;
rxF = (int16_t *)&rxdataF[rxAnt][l*frame_params->ofdm_symbol_size + k];
if(prs_cfg->CombSize == 2)
@@ -520,7 +520,7 @@ int nr_prs_channel_estimation(uint8_t gNB_id,
#ifdef DEBUG_PRS_CHEST
sprintf(filename, "%s%i%s", "PRSpilot_", rxAnt, ".m");
LOG_M(filename, "prs_loc", &mod_prs[0], num_pilots,1,1);
LOG_M(filename, "prs_loc", mod_prs, num_pilots, 1, 1);
sprintf(filename, "%s%i%s", "rxSigF_", rxAnt, ".m");
sprintf(varname, "%s%i", "rxF_", rxAnt);
LOG_M(filename, varname, &rxdataF[rxAnt][0], prs_cfg->NumPRSSymbols*frame_params->ofdm_symbol_size,1,1);