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change partially pbch detection to c16_t instead of hidden complex in int16_t and int32_t

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This commit is contained in:
Laurent THOMAS
2024-03-26 20:57:31 +01:00
parent 34f260769b
commit 39400a458e
11 changed files with 235 additions and 330 deletions
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openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
+2 -2
View File
@@ -114,7 +114,7 @@ int nr_pusch_channel_estimation(PHY_VARS_gNB *gNB,
nr_pusch_dmrs_rx(gNB,
Ns,
gNB->nr_gold_pusch_dmrs[pusch_pdu->scid][Ns][symbol],
(int32_t *)pilot,
pilot,
(1000 + p),
0,
nb_rb_pusch,
@@ -129,7 +129,7 @@ int nr_pusch_channel_estimation(PHY_VARS_gNB *gNB,
LOG_D(PHY,"Transform Precoding params. u: %d, v: %d, index for dmrsseq: %d\n", u, v, index);
AssertFatal(index >= 0, "Num RBs not configured according to 3GPP 38.211 section 6.3.1.4. For PUSCH with transform precoding, num RBs cannot be multiple of any other primenumber other than 2,3,5\n");
AssertFatal(dmrs_seq != NULL, "DMRS low PAPR seq not found, check if DMRS sequences are generated");
nr_pusch_lowpaprtype1_dmrs_rx(gNB, Ns, dmrs_seq, (int32_t *)pilot, 1000, 0, nb_rb_pusch, 0, pusch_pdu->dmrs_config_type);
nr_pusch_lowpaprtype1_dmrs_rx(gNB, Ns, dmrs_seq, pilot, 1000, 0, nb_rb_pusch, 0, pusch_pdu->dmrs_config_type);
#ifdef DEBUG_PUSCH
printf ("NR_UL_CHANNEL_EST: index %d, u %d,v %d\n", index, u, v);
LOG_M("gNb_DMRS_SEQ.m","gNb_DMRS_SEQ", dmrs_seq,6*nb_rb_pusch,1,1);
openair1/PHY/NR_REFSIG/nr_dmrs_rx.c
+49 -43
View File
@@ -51,10 +51,10 @@ static const int wt2[12][2] =
{{1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, -1}, {1, -1}, {1, -1}, {1, -1}, {1, -1}, {1, -1}};
// complex conjugate of mod table
static const short nr_rx_mod_table[14] =
{0, 0, 23170, -23170, -23170, 23170, 23170, -23170, 23170, 23170, -23170, -23170, -23170, 23170};
static const short nr_rx_nmod_table[14] =
{0, 0, -23170, 23170, 23170, -23170, -23170, 23170, -23170, -23170, 23170, 23170, 23170, -23170};
static const c16_t nr_rx_mod_table[7] =
{{0, 0}, {23170, -23170}, {-23170, 23170}, {23170, -23170}, {23170, 23170}, {-23170, -23170}, {-23170, 23170}};
static const c16_t nr_rx_nmod_table[7] =
{{0, 0}, {-23170, 23170}, {23170, -23170}, {-23170, 23170}, {-23170, -23170}, {23170, 23170}, {23170, -23170}};
int nr_pusch_dmrs_delta(uint8_t dmrs_config_type, unsigned short p) {
if (dmrs_config_type == pusch_dmrs_type1) {
@@ -67,7 +67,7 @@ int nr_pusch_dmrs_delta(uint8_t dmrs_config_type, unsigned short p) {
int nr_pusch_dmrs_rx(PHY_VARS_gNB *gNB,
unsigned int Ns,
unsigned int *nr_gold_pusch,
int32_t *output,
c16_t *output,
unsigned short p,
unsigned char lp,
unsigned short nb_pusch_rb,
@@ -92,16 +92,21 @@ int nr_pusch_dmrs_rx(PHY_VARS_gNB *gNB,
for (int i=dmrs_offset; i<dmrs_offset+(nb_pusch_rb*nb_dmrs); i++) {
k = i-dmrs_offset;
w = (wf[p-1000][i&1])*(wt[p-1000][lp]);
const short *mod_table = (w == 1) ? nr_rx_mod_table : nr_rx_nmod_table;
const c16_t *mod_table = (w == 1) ? nr_rx_mod_table : nr_rx_nmod_table;
idx = ((((nr_gold_pusch[(i<<1)>>5])>>((i<<1)&0x1f))&1)<<1) ^ (((nr_gold_pusch[((i<<1)+1)>>5])>>(((i<<1)+1)&0x1f))&1);
((int16_t*)output)[k<<1] = mod_table[(NR_MOD_TABLE_QPSK_OFFSET + idx)<<1];
((int16_t*)output)[(k<<1)+1] = mod_table[((NR_MOD_TABLE_QPSK_OFFSET + idx)<<1) + 1];
output[k] = mod_table[NR_MOD_TABLE_QPSK_OFFSET + idx];
#ifdef DEBUG_PUSCH
printf("nr_pusch_dmrs_rx dmrs config type %d port %d nb_pusch_rb %d\n", dmrs_type, p, nb_pusch_rb);
printf("wf[%d] = %d wt[%d]= %d\n", i&1, wf[p-1000][i&1], lp, wt[p-1000][lp]);
printf("i %d idx %d pusch gold %u b0-b1 %d-%d mod_dmrs %d %d\n", i, idx, nr_gold_pusch[(i<<1)>>5], (((nr_gold_pusch[(i<<1)>>5])>>((i<<1)&0x1f))&1),
(((nr_gold_pusch[((i<<1)+1)>>5])>>(((i<<1)+1)&0x1f))&1), ((int16_t*)output)[k<<1], ((int16_t*)output)[(k<<1)+1]);
printf("i %d idx %d pusch gold %u b0-b1 %d-%d mod_dmrs %d %d\n",
i,
idx,
nr_gold_pusch[(i << 1) >> 5],
(((nr_gold_pusch[(i << 1) >> 5]) >> ((i << 1) & 0x1f)) & 1),
(((nr_gold_pusch[((i << 1) + 1) >> 5]) >> (((i << 1) + 1) & 0x1f)) & 1),
output[k].r,
output[k].i);
#endif
}
@@ -115,11 +120,10 @@ int nr_pusch_dmrs_rx(PHY_VARS_gNB *gNB,
return(0);
}
int nr_pdsch_dmrs_rx(PHY_VARS_NR_UE *ue,
unsigned int Ns,
unsigned int *nr_gold_pdsch,
int32_t *output,
c16_t *output,
unsigned short p,
unsigned char lp,
unsigned short nb_pdsch_rb,
@@ -139,11 +143,10 @@ int nr_pdsch_dmrs_rx(PHY_VARS_NR_UE *ue,
if (ue->frame_parms.Ncp == NORMAL) {
for (int i = 0; i < nb_pdsch_rb * ((config_type == NFAPI_NR_DMRS_TYPE1) ? 6 : 4); i++) {
w = (wf[p - 1000][i & 1]) * (wt[p - 1000][lp]);
const short *mod_table = (w == 1) ? nr_rx_mod_table : nr_rx_nmod_table;
const c16_t *mod_table = (w == 1) ? nr_rx_mod_table : nr_rx_nmod_table;
idx = ((((nr_gold_pdsch[(i << 1) >> 5]) >> ((i << 1) & 0x1f)) & 1) << 1) ^ (((nr_gold_pdsch[((i << 1) + 1) >> 5]) >> (((i << 1) + 1) & 0x1f)) & 1);
((int16_t *)output)[i << 1] = mod_table[(NR_MOD_TABLE_QPSK_OFFSET + idx) << 1];
((int16_t *)output)[(i << 1) + 1] = mod_table[((NR_MOD_TABLE_QPSK_OFFSET + idx) << 1) + 1];
output[i] = mod_table[NR_MOD_TABLE_QPSK_OFFSET + idx];
#ifdef DEBUG_PDSCH
printf("nr_pdsch_dmrs_rx dmrs config type %d port %d nb_pdsch_rb %d\n", config_type, p, nb_pdsch_rb);
printf("wf[%d] = %d wt[%d]= %d\n", i & 1, wf[p - 1000][i & 1], lp, wt[p - 1000][lp]);
@@ -153,8 +156,8 @@ int nr_pdsch_dmrs_rx(PHY_VARS_NR_UE *ue,
nr_gold_pdsch[(i << 1) >> 5],
(((nr_gold_pdsch[(i << 1) >> 5]) >> ((i << 1) & 0x1f)) & 1),
(((nr_gold_pdsch[((i << 1) + 1) >> 5]) >> (((i << 1) + 1) & 0x1f)) & 1),
((int16_t *)output)[i << 1],
((int16_t *)output)[(i << 1) + 1]);
output[i].r,
output[i].i);
#endif
}
} else {
@@ -167,11 +170,10 @@ int nr_pdsch_dmrs_rx(PHY_VARS_NR_UE *ue,
return(0);
}
int nr_pdcch_dmrs_rx(PHY_VARS_NR_UE *ue,
unsigned int Ns,
unsigned int *nr_gold_pdcch,
int32_t *output,
c16_t *output,
unsigned short p,
unsigned short nb_rb_coreset)
{
@@ -182,12 +184,17 @@ int nr_pdcch_dmrs_rx(PHY_VARS_NR_UE *ue,
if (p==2000) {
for (int i=0; i<((nb_rb_coreset*6)>>1); i++) {
idx = ((((nr_gold_pdcch[(i<<1)>>5])>>((i<<1)&0x1f))&1)<<1) ^ (((nr_gold_pdcch[((i<<1)+1)>>5])>>(((i<<1)+1)&0x1f))&1);
((int16_t*)output)[i<<1] = nr_rx_mod_table[(NR_MOD_TABLE_QPSK_OFFSET + idx)<<1];
((int16_t*)output)[(i<<1)+1] = nr_rx_mod_table[((NR_MOD_TABLE_QPSK_OFFSET + idx)<<1) + 1];
output[i] = nr_rx_mod_table[NR_MOD_TABLE_QPSK_OFFSET + idx];
#ifdef DEBUG_PDCCH
if (i<8)
printf("i %d idx %d pdcch gold %u b0-b1 %d-%d mod_dmrs %d %d addr %p\n", i, idx, nr_gold_pdcch[(i<<1)>>5], (((nr_gold_pdcch[(i<<1)>>5])>>((i<<1)&0x1f))&1),
(((nr_gold_pdcch[((i<<1)+1)>>5])>>(((i<<1)+1)&0x1f))&1), ((int16_t*)output)[i<<1], ((int16_t*)output)[(i<<1)+1],&output[0]);
printf("i %d idx %d pdcch gold %u b0-b1 %d-%d mod_dmrs %d %d\n",
i,
idx,
nr_gold_pdcch[(i << 1) >> 5],
(((nr_gold_pdcch[(i << 1) >> 5]) >> ((i << 1) & 0x1f)) & 1),
(((nr_gold_pdcch[((i << 1) + 1) >> 5]) >> (((i << 1) + 1) & 0x1f)) & 1),
output[i].r,
output[i].i);
#endif
}
}
@@ -195,8 +202,7 @@ int nr_pdcch_dmrs_rx(PHY_VARS_NR_UE *ue,
return(0);
}
int nr_pbch_dmrs_rx(int symbol, unsigned int *nr_gold_pbch, int32_t *output)
int nr_pbch_dmrs_rx(int symbol, unsigned int *nr_gold_pbch, c16_t *output)
{
int m,m0,m1;
uint8_t idx=0;
@@ -217,13 +223,12 @@ int nr_pbch_dmrs_rx(int symbol, unsigned int *nr_gold_pbch, int32_t *output)
/// QPSK modulation
for (m=m0; m<m1; m++) {
idx = ((((nr_gold_pbch[(m<<1)>>5])>>((m<<1)&0x1f))&1)<<1) ^ (((nr_gold_pbch[((m<<1)+1)>>5])>>(((m<<1)+1)&0x1f))&1);
((int16_t*)output)[(m-m0)<<1] = nr_rx_mod_table[(NR_MOD_TABLE_QPSK_OFFSET + idx)<<1];
((int16_t*)output)[((m-m0)<<1)+1] = nr_rx_mod_table[((NR_MOD_TABLE_QPSK_OFFSET + idx)<<1) + 1];
output[m - m0] = nr_rx_mod_table[NR_MOD_TABLE_QPSK_OFFSET + idx];
#ifdef DEBUG_PBCH
if (m<16)
{printf("nr_gold_pbch[(m<<1)>>5] %x\n",nr_gold_pbch[(m<<1)>>5]);
printf("m %d output %d %d addr %p\n", m, ((int16_t*)output)[m<<1], ((int16_t*)output)[(m<<1)+1],&output[0]);
printf("m %d output %d %d\n", m, output[m].r, output[m].i);
}
#endif
}
@@ -237,7 +242,7 @@ int nr_pbch_dmrs_rx(int symbol, unsigned int *nr_gold_pbch, int32_t *output)
\param length is number of RE in a OFDM symbol
\param *output pointer to all ptrs RE in a OFDM symbol
*/
void nr_gen_ref_conj_symbols(uint32_t *in, uint32_t length, int16_t *output, uint16_t offset, int mod_order)
void nr_gen_ref_conj_symbols(uint32_t *in, uint32_t length, c16_t *output, uint16_t offset, int mod_order)
{
uint8_t idx, b_idx;
for (int i=0; i<length/mod_order; i++)
@@ -250,15 +255,14 @@ void nr_gen_ref_conj_symbols(uint32_t *in, uint32_t length, int16_t *output, uin
in++;
idx ^= (((*in)>>b_idx)&1)<<(mod_order-j-1);
}
output[i<<1] = nr_rx_mod_table[(offset+idx)<<1];
output[(i<<1)+1] = nr_rx_mod_table[((offset+idx)<<1)+1];
output[i] = nr_rx_mod_table[offset + idx];
}
}
int nr_pusch_lowpaprtype1_dmrs_rx(PHY_VARS_gNB *gNB,
unsigned int Ns,
int16_t *dmrs_seq,
int32_t *output,
c16_t *output,
unsigned short p,
unsigned char lp,
unsigned short nb_pusch_rb,
@@ -278,19 +282,21 @@ int nr_pusch_lowpaprtype1_dmrs_rx(PHY_VARS_gNB *gNB,
nb_dmrs = NR_NB_SC_PER_RB/2; // for DMRS TYPE 1 - 6 DMRS REs present per RB
for (int i=dmrs_offset; i<dmrs_offset+(nb_pusch_rb*nb_dmrs); i++) {
k = i-dmrs_offset;
w = (wf1[p-1000][i&1])*(wt1[p-1000][lp]);
((int16_t*)output)[2*k] = w*dmrs_seq[2*i];
((int16_t*)output)[(2*k)+1] = -(w*dmrs_seq[(2*i)+1]);// conjugate
w = (wf1[p - 1000][i & 1]) * (wt1[p - 1000][lp]);
output[k].r = w * dmrs_seq[2 * i];
output[k].i = -(w * dmrs_seq[(2 * i) + 1]); // conjugate
#ifdef DEBUG_PUSCH
printf("NR_DMRS_RX: nr_pusch_dmrs_rx dmrs config type %d port %d nb_pusch_rb %d nb_dmrs %d\n", dmrs_type, p, nb_pusch_rb, nb_dmrs);
printf("NR_DMRS_RX: wf[%d] = %d wt[%d]= %d\n", i&1, wf1[p-1000][i&1], lp, wt1[p-1000][lp]);
#ifdef DEBUG_PUSCH
printf("NR_DMRS_RX: nr_pusch_dmrs_rx dmrs config type %d port %d nb_pusch_rb %d nb_dmrs %d\n",
dmrs_type,
p,
nb_pusch_rb,
nb_dmrs);
printf("NR_DMRS_RX: wf[%d] = %d wt[%d]= %d\n", i & 1, wf1[p - 1000][i & 1], lp, wt1[p - 1000][lp]);
printf("NR_DMRS_RX: i %d dmrs_offset %d k %d pusch dmrsseq[i<<1] %d, dmrsseq[(i<<1)+1] %d pilots[k<<1] %d pilots[(k<<1)+1] %d\n", i, dmrs_offset, k,
dmrs_seq[i<<1], dmrs_seq[(i<<1)+1], ((int16_t*)output)[k<<1], ((int16_t*)output)[(k<<1)+1]);
#endif
dmrs_seq[i<<1], dmrs_seq[(i<<1)+1], output[k].r, output[(k].i);
#endif
}
} else {
LOG_E(PHY,"extended cp not supported for PUSCH DMRS yet\n");
openair1/PHY/NR_REFSIG/nr_refsig.h
+9 -13
View File
@@ -54,7 +54,7 @@ int nr_pusch_dmrs_delta(uint8_t dmrs_config_type, unsigned short p);
int nr_pusch_dmrs_rx(PHY_VARS_gNB *gNB,
unsigned int Ns,
unsigned int *nr_gold_pusch,
int32_t *output,
c16_t *output,
unsigned short p,
unsigned char lp,
unsigned short nb_pusch_rb,
@@ -68,18 +68,14 @@ extern simde__m64 byte2m64_re[256];
extern simde__m64 byte2m64_im[256];
extern simde__m128i byte2m128i[256];
int nr_pusch_lowpaprtype1_dmrs_rx(PHY_VARS_gNB *gNB,
unsigned int Ns,
int16_t *dmrs_seq,
int32_t *output,
unsigned short p,
unsigned char lp,
unsigned short nb_pusch_rb,
uint32_t re_offset,
uint8_t dmrs_type);
unsigned int Ns,
int16_t *dmrs_seq,
c16_t *output,
unsigned short p,
unsigned char lp,
unsigned short nb_pusch_rb,
uint32_t re_offset,
uint8_t dmrs_type);
#endif
openair1/PHY/NR_REFSIG/refsig_defs_ue.h
+3 -6
View File
@@ -27,13 +27,10 @@
#include "PHY/defs_nr_UE.h"
#include "PHY/LTE_REFSIG/lte_refsig.h"
/*!\brief This function generates the NR Gold sequence (38-211, Sec 5.2.1) for the PBCH DMRS.
@param PHY_VARS_NR_UE* ue structure provides configuration, frame parameters and the pointers to the 32 bits sequence storage tables
*/
int nr_pbch_dmrs_rx(int dmrss,
unsigned int *nr_gold_pbch,
int32_t *output);
int nr_pbch_dmrs_rx(int dmrss, unsigned int *nr_gold_pbch, c16_t *output);
/*!\brief This function generates the NR Gold sequence (38-211, Sec 5.2.1) for the PDCCH DMRS.
@param PHY_VARS_NR_UE* ue structure provides configuration, frame parameters and the pointers to the 32 bits sequence storage tables
@@ -41,14 +38,14 @@ int nr_pbch_dmrs_rx(int dmrss,
int nr_pdcch_dmrs_rx(PHY_VARS_NR_UE *ue,
unsigned int Ns,
unsigned int *nr_gold_pdcch,
int32_t *output,
c16_t *output,
unsigned short p,
unsigned short nb_rb_corset);
int nr_pdsch_dmrs_rx(PHY_VARS_NR_UE *ue,
unsigned int Ns,
unsigned int *nr_gold_pdsch,
int32_t *output,
c16_t *output,
unsigned short p,
unsigned char lp,
unsigned short nb_pdsch_rb,
openair1/PHY/NR_REFSIG/ul_ref_seq_nr.c
+3 -2
View File
@@ -202,10 +202,11 @@ void generate_lowpapr_typ1_refsig_sequences(unsigned int scaling)
{
/* prevent multiple calls, relevant when both UE & gNB initialize this */
static bool already_called = false;
if (already_called) return;
if (already_called)
return;
already_called = true;
unsigned int u,Msc_RS;
unsigned int u, Msc_RS;
unsigned int v = 0; // sequence hopping and group hopping are not supported yet
for (Msc_RS=0; Msc_RS <= INDEX_SB_LESS_32; Msc_RS++) {
openair1/PHY/NR_UE_ESTIMATION/filt16a_32.h
+16 -12
View File
@@ -20,15 +20,16 @@
*/
#ifndef __FILT16A_H__
#define __FILT16A_H__
static const short filt16a_l0[16] = {16384, 12288, 8192, 4096, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
static const c16_t filt16a_l0[8] = {{16384, 12288}, {8192, 4096}, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}};
static const short filt16a_mm0[16] = {0, 4096, 8192, 12288, 16384, 12288, 8192, 4096, 0, 0, 0, 0, 0, 0, 0, 0};
static const short filt16a_r0[16] = {0, 0, 0, 0, 0, 4096, 8192, 12288, 16384, 20480, 24576, 28672, 0, 0, 0, 0};
static const c16_t filt16a_r0[8] = {{0, 0}, {0, 0}, {0, 4096}, {8192, 12288}, {16384, 20480}, {24576, 28672}, {0, 0}, {0, 0}};
static const short filt16a_m0[16] = {0, 4096, 8192, 12288, 16384, 12288, 8192, 4096, 0, -4096, -8192, -12288, 0, 0, 0, 0};
static const c16_t filt16a_m0[8] =
{{0, 4096}, {8192, 12288}, {16384, 12288}, {8192, 4096}, {0, -4096}, {-8192, -12288}, {0, 0}, {0, 0}};
static const short filt16a_l1[16] = {20480, 16384, 12288, 8192, 4096, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
static const c16_t filt16a_l1[8] = {{20480, 16384}, {12288, 8192}, {4096, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}};
static const short filt16a_mm1[16] = {0, 0, 4096, 8192, 12288, 16384, 12288, 8192, 4096, 0, 0, 0, 0, 0, 0, 0};
@@ -36,11 +37,12 @@ static const short filt16a_ml1[16] = {-4096, 0, 4096, 8192, 12288, 16384, 12288,
static const short filt16a_mr1[16] = {0, 0, 4096, 8192, 12288, 16384, 12288, 8192, 4096, 0, -4096, -8192, 0, 0, 0, 0};
static const short filt16a_r1[16] = {0, 0, 0, 0, 0, 0, 4096, 8192, 12288, 16384, 20480, 24576, 0, 0, 0, 0};
static const c16_t filt16a_r1[8] = {{0, 0}, {0, 0}, {0, 0}, {4096, 8192}, {12288, 16384}, {20480, 24576}, {0, 0}, {0, 0}};
static const short filt16a_m1[16] = {-4096, 0, 4096, 8192, 12288, 16384, 12288, 8192, 4096, 0, -4096, -8192, 0, 0, 0, 0};
static const c16_t filt16a_m1[8] =
{{-4096, 0}, {4096, 8192}, {12288, 16384}, {12288, 8192}, {4096, 0}, {-4096, -8192}, {0, 0}, {0, 0}};
static const short filt16a_l2[16] = {24576, 20480, 16384, 12288, 8192, 4096, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
static const c16_t filt16a_l2[8] = {{24576, 20480}, {16384, 12288}, {8192, 4096}, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}};
static const short filt16a_mm2[16] = {0, 0, 0, 4096, 8192, 12288, 16384, 12288, 8192, 4096, 0, 0, 0, 0, 0, 0};
@@ -48,19 +50,21 @@ static const short filt16a_ml2[16] = {-8192, -4096, 0, 4096, 8192, 12288, 16384,
static const short filt16a_mr2[16] = {0, 0, 0, 4096, 8192, 12288, 16384, 12288, 8192, 4096, 0, -4096, 0, 0, 0, 0};
static const short filt16a_r2[16] = {0, 0, 0, 0, 0, 0, 0, 4096, 8192, 12288, 16384, 20480, 0, 0, 0, 0};
static const c16_t filt16a_r2[8] = {{0, 0}, {0, 0}, {0, 0}, {0, 4096}, {8192, 12288}, {16384, 20480}, {0, 0}, {0, 0}};
static const short filt16a_m2[16] = {-8192, -4096, 0, 4096, 8192, 12288, 16384, 12288, 8192, 4096, 0, -4096, 0, 0, 0, 0};
static const c16_t filt16a_m2[8] =
{{-8192, -4096}, {0, 4096}, {8192, 12288}, {16384, 12288}, {8192, 4096}, {0, -4096}, {0, 0}, {0, 0}};
static const short filt16a_l3[16] = {28672, 24576, 20480, 16384, 12288, 8192, 4096, 0, 0, 0, 0, 0, 0, 0, 0, 0};
static const c16_t filt16a_l3[8] = {{28672, 24576}, {20480, 16384}, {12288, 8192}, {4096, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}};
static const short filt16a_mm3[16] = {0, 0, 0, 0, 4096, 8192, 12288, 16384, 12288, 8192, 4096, 0, 0, 0, 0, 0};
static const short filt16a_ml3[16] = {-12288, -8192, -4096, 0, 4096, 8192, 12288, 16384, 12288, 8192, 4096, 0, 0, 0, 0, 0};
static const short filt16a_r3[16] = {0, 0, 0, 0, 0, 0, 0, 0, 4096, 8192, 12288, 16384, 0, 0, 0, 0};
static const c16_t filt16a_r3[8] = {{0, 0}, {0, 0}, {0, 0}, {0, 0}, {4096, 8192}, {12288, 16384}, {0, 0}, {0, 0}};
static const short filt16a_m3[16] = {-12288, -8192, -4096, 0, 4096, 8192, 12288, 16384, 12288, 8192, 4096, 0, 0, 0, 0, 0};
static const c16_t filt16a_m3[8] =
{{-12288, -8192}, {-4096, 0}, {4096, 8192}, {12288, 16384}, {12288, 8192}, {4096, 0}, {0, 0}, {0, 0}};
static const short filt16a_l0_dc[16] = {16384, 12288, 8192, 4096, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c
+128 -239
View File
@@ -37,9 +37,10 @@
extern openair0_config_t openair0_cfg[];
//#define DEBUG_PDSCH
//#define DEBUG_PDCCH
//#define DEBUG_PBCH
// #define DEBUG_PDSCH
// #define DEBUG_PDCCH
// #define DEBUG_PBCH(a...) printf(a)
#define DEBUG_PBCH(a...)
//#define DEBUG_PRS_CHEST // To enable PRS Matlab dumps
//#define DEBUG_PRS_PRINTS // To enable PRS channel estimation debug logs
@@ -295,39 +296,39 @@ int nr_prs_channel_estimation(uint8_t gNB_id,
// Choose the interpolation filters
switch (k_prime) {
case 0:
fl = filt16a_l0;
fl = (short int *)filt16a_l0;
fml = filt16a_mm0;
fmm = filt16a_mm0;
fmr = filt16a_m0;
fm = filt16a_m0;
fr = filt16a_r0;
fmr = (short int *)filt16a_m0;
fm = (short int *)filt16a_m0;
fr = (short int *)filt16a_r0;
break;
case 1:
fl = filt16a_l1;
fl = (short int *)filt16a_l1;
fml = filt16a_ml1;
fmm = filt16a_mm1;
fmr = filt16a_mr1;
fm = filt16a_m1;
fr = filt16a_r1;
fm = (short int *)filt16a_m1;
fr = (short int *)filt16a_r1;
break;
case 2:
fl = filt16a_l2;
fl = (short int *)filt16a_l2;
fml = filt16a_ml2;
fmm = filt16a_mm2;
fmr = filt16a_mr2;
fm = filt16a_m2;
fr = filt16a_r2;
fm = (short int *)filt16a_m2;
fr = (short int *)filt16a_r2;
break;
case 3:
fl = filt16a_l3;
fl = (short int *)filt16a_l3;
fml = filt16a_ml3;
fmm = filt16a_mm3;
fmr = filt16a_mm3;
fm = filt16a_m3;
fr = filt16a_r3;
fm = (short int *)filt16a_m3;
fr = (short int *)filt16a_r3;
break;
default:
@@ -637,9 +638,8 @@ int nr_pbch_dmrs_correlation(PHY_VARS_NR_UE *ue,
NR_UE_SSB *current_ssb,
c16_t rxdataF[][ue->frame_parms.samples_per_slot_wCP])
{
int pilot[200] __attribute__((aligned(16)));
c16_t pilot[200] __attribute__((aligned(16)));
unsigned int pilot_cnt;
int16_t ch[2],*pil,*rxF;
int symbol_offset;
uint8_t ssb_index=current_ssb->i_ssb;
@@ -656,128 +656,71 @@ int nr_pbch_dmrs_correlation(PHY_VARS_NR_UE *ue,
unsigned int k = ue->frame_parms.Nid_cell % 4;
#ifdef DEBUG_PBCH
printf("PBCH DMRS Correlation : gNB_id %d , OFDM size %d, Ncp=%d, Ns=%d, k=%d symbol %d\n", proc->gNB_id, ue->frame_parms.ofdm_symbol_size, ue->frame_parms.Ncp, Ns, k, symbol);
#endif
DEBUG_PBCH("PBCH DMRS Correlation : gNB_id %d , OFDM size %d, Ncp=%d, k=%d symbol %d\n",
proc->gNB_id,
ue->frame_parms.ofdm_symbol_size,
ue->frame_parms.Ncp,
k,
symbol);
// generate pilot
// Note: pilot returned by the following function is already the complex conjugate of the transmitted DMRS
nr_pbch_dmrs_rx(dmrss, ue->nr_gold_pbch[n_hf][ssb_index], &pilot[0]);
nr_pbch_dmrs_rx(dmrss, ue->nr_gold_pbch[n_hf][ssb_index], pilot);
for (int aarx=0; aarx<ue->frame_parms.nb_antennas_rx; aarx++) {
int re_offset = ssb_offset;
pil = (int16_t *)&pilot[0];
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k+re_offset)];
c16_t *pil = pilot;
c16_t *rxF = &rxdataF[aarx][symbol_offset + k];
#ifdef DEBUG_PBCH
printf("pbch ch est pilot addr %p RB_DL %d\n",&pilot[0], ue->frame_parms.N_RB_DL);
printf("k %d, first_carrier %d\n",k,ue->frame_parms.first_carrier_offset);
printf("rxF addr %p\n", rxF);
#endif
DEBUG_PBCH("pbch ch est pilot RB_DL %d\n", ue->frame_parms.N_RB_DL);
DEBUG_PBCH("k %d, first_carrier %d\n", k, ue->frame_parms.first_carrier_offset);
//if ((ue->frame_parms.N_RB_DL&1)==0) {
// Treat first 2 pilots specially (left edge)
ch[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
ch[1] = (int16_t)(((int32_t)pil[0]*rxF[1] + (int32_t)pil[1]*rxF[0])>>15);
current_ssb->c = c32x16maddShift(*pil, rxF[re_offset], current_ssb->c, 15);
current_ssb->c_re += ch[0];
current_ssb->c_im += ch[1];
DEBUG_PBCH("ch 0 %d\n", pil->r * rxF[re_offset].r - pil->i * rxF[re_offset].i);
DEBUG_PBCH("pilot 0 : rxF - > (%d,%d) pil -> (%d,%d) \n", rxF[re_offset].r, rxF[re_offset].i, pil->r, pil->i);
#ifdef DEBUG_PBCH
printf("ch 0 %d\n",((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1]));
printf("pilot 0 : rxF - > (%d,%d) addr %p ch -> (%d,%d), pil -> (%d,%d) \n",rxF[0],rxF[1],&rxF[0],ch[0],ch[1],pil[0],pil[1]);
#endif
pil += 2;
pil++;
re_offset = (re_offset+4) % ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k+re_offset)];
current_ssb->c = c32x16maddShift(*pil, rxF[re_offset], current_ssb->c, 15);
DEBUG_PBCH("pilot 1 : rxF - > (%d,%d) pil -> (%d,%d) \n", rxF[re_offset].r, rxF[re_offset].i, pil->r, pil->i);
ch[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
ch[1] = (int16_t)(((int32_t)pil[0]*rxF[1] + (int32_t)pil[1]*rxF[0])>>15);
current_ssb->c_re += ch[0];
current_ssb->c_im += ch[1];
#ifdef DEBUG_PBCH
printf("pilot 1 : rxF - > (%d,%d) ch -> (%d,%d), pil -> (%d,%d) \n",rxF[0],rxF[1],ch[0],ch[1],pil[0],pil[1]);
#endif
pil += 2;
pil++;
re_offset = (re_offset+4) % ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k+re_offset)];
current_ssb->c = c32x16maddShift(*pil, rxF[re_offset], current_ssb->c, 15);
current_ssb->c_re += ch[0];
current_ssb->c_im += ch[1];
DEBUG_PBCH("pilot 2 : rxF - > (%d,%d), pil -> (%d,%d) \n", rxF[re_offset].r, rxF[re_offset].i, pil->r, pil->i);
#ifdef DEBUG_PBCH
printf("pilot 2 : rxF - > (%d,%d) ch -> (%d,%d), pil -> (%d,%d) \n",rxF[0],rxF[1],ch[0],ch[1],pil[0],pil[1]);
#endif
pil += 2;
re_offset = (re_offset+4) % ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k+re_offset)];
for (pilot_cnt=3; pilot_cnt<(3*20); pilot_cnt += 3) {
// if (pilot_cnt == 30)
// rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k)];
pil++;
re_offset = (re_offset + 4) % ue->frame_parms.ofdm_symbol_size;
for (pilot_cnt = 3; pilot_cnt < (3 * 20); pilot_cnt += 3) {
// in 2nd symbol, skip middle REs (48 with DMRS, 144 for SSS, and another 48 with DMRS)
if (dmrss == 1 && pilot_cnt == 12) {
pilot_cnt=48;
re_offset = (re_offset+144) % ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k+re_offset)];
re_offset = (re_offset + 144) % ue->frame_parms.ofdm_symbol_size;
}
ch[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
ch[1] = (int16_t)(((int32_t)pil[0]*rxF[1] + (int32_t)pil[1]*rxF[0])>>15);
current_ssb->c_re += ch[0];
current_ssb->c_im += ch[1];
current_ssb->c = c32x16maddShift(*pil, rxF[re_offset], current_ssb->c, 15);
#ifdef DEBUG_PBCH
printf("pilot %u : rxF - > (%d,%d) ch -> (%d,%d), pil -> (%d,%d) \n",pilot_cnt,rxF[0],rxF[1],ch[0],ch[1],pil[0],pil[1]);
#endif
DEBUG_PBCH("pilot %u : rxF= (%d,%d) pil= (%d,%d) \n", pilot_cnt, rxF[re_offset].r, rxF[re_offset].i, pil->r, pil->i);
pil += 2;
pil++;
re_offset = (re_offset+4) % ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k+re_offset)];
ch[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
ch[1] = (int16_t)(((int32_t)pil[0]*rxF[1] + (int32_t)pil[1]*rxF[0])>>15);
current_ssb->c = c32x16maddShift(*pil, rxF[re_offset], current_ssb->c, 15);
current_ssb->c_re += ch[0];
current_ssb->c_im += ch[1];
#ifdef DEBUG_PBCH
printf("pilot %u : rxF - > (%d,%d) ch -> (%d,%d), pil -> (%d,%d) \n",pilot_cnt+1,rxF[0],rxF[1],ch[0],ch[1],pil[0],pil[1]);
#endif
pil += 2;
DEBUG_PBCH("pilot %u : rxF= (%d,%d) pil= (%d,%d) \n", pilot_cnt + 1, rxF[re_offset].r, rxF[re_offset].i, pil->r, pil->i);
pil++;
re_offset = (re_offset+4) % ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k+re_offset)];
ch[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
ch[1] = (int16_t)(((int32_t)pil[0]*rxF[1] + (int32_t)pil[1]*rxF[0])>>15);
current_ssb->c_re += ch[0];
current_ssb->c_im += ch[1];
#ifdef DEBUG_PBCH
printf("pilot %u : rxF - > (%d,%d) ch -> (%d,%d), pil -> (%d,%d) \n",pilot_cnt+2,rxF[0],rxF[1],ch[0],ch[1],pil[0],pil[1]);
#endif
pil += 2;
re_offset = (re_offset+4) % ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k+re_offset)];
current_ssb->c = c32x16maddShift(*pil, rxF[re_offset], current_ssb->c, 15);
DEBUG_PBCH("pilot %u : rxF= (%d,%d) pil= (%d,%d) \n", pilot_cnt + 2, rxF[re_offset].r, rxF[re_offset].i, pil->r, pil->i);
pil++;
re_offset = (re_offset + 4) % ue->frame_parms.ofdm_symbol_size;
}
//}
}
return(0);
}
@@ -794,33 +737,31 @@ int nr_pbch_channel_estimation(PHY_VARS_NR_UE *ue,
c16_t rxdataF[][ue->frame_parms.samples_per_slot_wCP])
{
int Ns = proc->nr_slot_rx;
int pilot[200] __attribute__((aligned(16)));
unsigned short k;
unsigned int pilot_cnt;
int16_t *pil, *rxF, *dl_ch;
const int16_t *fl, *fm, *fr;
int ch_offset,symbol_offset;
c16_t pilot[200] __attribute__((aligned(16)));
//int slot_pbch;
uint8_t nushift;
nushift = ue->frame_parms.Nid_cell % 4;
const int nushift = ue->frame_parms.Nid_cell % 4;
unsigned int ssb_offset = ue->frame_parms.first_carrier_offset + ue->frame_parms.ssb_start_subcarrier;
if (ssb_offset>= ue->frame_parms.ofdm_symbol_size) ssb_offset-=ue->frame_parms.ofdm_symbol_size;
ch_offset = ue->frame_parms.ofdm_symbol_size*symbol;
const int ch_offset = ue->frame_parms.ofdm_symbol_size * symbol;
AssertFatal(dmrss >= 0 && dmrss < 3,
"symbol %d is illegal for PBCH DM-RS \n",
dmrss);
symbol_offset = ue->frame_parms.ofdm_symbol_size*symbol;
const int symbol_offset = ue->frame_parms.ofdm_symbol_size * symbol;
k = nushift;
#ifdef DEBUG_PBCH
printf("PBCH Channel Estimation : gNB_id %d ch_offset %d, OFDM size %d, Ncp=%d, Ns=%d, k=%d symbol %d\n", proc->gNB_id, ch_offset, ue->frame_parms.ofdm_symbol_size, ue->frame_parms.Ncp, Ns, k, symbol);
#endif
const int k = nushift;
const c16_t *fl, *fm, *fr;
DEBUG_PBCH("PBCH Channel Estimation : gNB_id %d ch_offset %d, OFDM size %d, Ncp=%d, Ns=%d, k=%d symbol %d\n",
proc->gNB_id,
ch_offset,
ue->frame_parms.ofdm_symbol_size,
ue->frame_parms.Ncp,
Ns,
k,
symbol);
switch (k) {
case 0:
@@ -903,136 +844,91 @@ int nr_pbch_channel_estimation(PHY_VARS_NR_UE *ue,
// generate pilot
// Note: pilot returned by the following function is already the complex conjugate of the transmitted DMRS
nr_pbch_dmrs_rx(dmrss, ue->nr_gold_pbch[n_hf][ssb_index], &pilot[0]);
nr_pbch_dmrs_rx(dmrss, ue->nr_gold_pbch[n_hf][ssb_index], pilot);
for (int aarx=0; aarx<ue->frame_parms.nb_antennas_rx; aarx++) {
int re_offset = ssb_offset;
pil = (int16_t *)&pilot[0];
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k+re_offset)];
dl_ch = (int16_t *)&dl_ch_estimates[aarx][ch_offset];
c16_t *pil = pilot;
c16_t *rxF = &rxdataF[aarx][symbol_offset + k];
c16_t *dl_ch = &dl_ch_estimates[aarx][ch_offset];
memset(dl_ch,0,sizeof(struct complex16)*(ue->frame_parms.ofdm_symbol_size));
memset(dl_ch, 0, sizeof(c16_t) * ue->frame_parms.ofdm_symbol_size);
#ifdef DEBUG_PBCH
printf("pbch ch est pilot addr %p RB_DL %d\n",&pilot[0], ue->frame_parms.N_RB_DL);
printf("k %d, first_carrier %d\n",k,ue->frame_parms.first_carrier_offset);
printf("rxF addr %p\n", rxF);
printf("dl_ch addr %p\n",dl_ch);
#endif
DEBUG_PBCH("pbch ch est pilot RB_DL %d\n", ue->frame_parms.N_RB_DL);
DEBUG_PBCH("k %d, first_carrier %d\n", k, ue->frame_parms.first_carrier_offset);
// Treat first 2 pilots specially (left edge)
int16_t ch[2];
ch[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
ch[1] = (int16_t)(((int32_t)pil[0]*rxF[1] + (int32_t)pil[1]*rxF[0])>>15);
c16_t ch;
ch = c16mulShift(*pil, rxF[re_offset], 15);
DEBUG_PBCH("pilot 0: rxF= (%d,%d), ch= (%d,%d), pil=(%d,%d)\n", rxF[re_offset].r, rxF[re_offset].i, ch.r, ch.i, pil->r, pil->i);
multaddRealVectorComplexScalar(fl, ch, dl_ch, 16);
pil++;
re_offset = (re_offset + 4) % ue->frame_parms.ofdm_symbol_size;
#ifdef DEBUG_PBCH
printf("ch 0 %d\n",((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1]));
printf("pilot 0 : rxF - > (%d,%d) addr %p ch -> (%d,%d), pil -> (%d,%d) \n",rxF[0],rxF[1],&rxF[0],ch[0],ch[1],pil[0],pil[1]);
#endif
multadd_real_vector_complex_scalar(fl,
ch,
dl_ch,
16);
pil += 2;
re_offset = (re_offset+4) % ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k+re_offset)];
ch = c16mulShift(*pil, rxF[re_offset], 15);
//for (int i= 0; i<8; i++)
//printf("dl_ch addr %p %d\n", dl_ch+i, *(dl_ch+i));
DEBUG_PBCH("pilot 1: rxF= (%d,%d), ch= (%d,%d), pil=(%d,%d)\n", rxF[re_offset].r, rxF[re_offset].i, ch.r, ch.i, pil->r, pil->i);
multaddRealVectorComplexScalar(fm, ch, dl_ch, 16);
pil++;
re_offset = (re_offset + 4) % ue->frame_parms.ofdm_symbol_size;
ch[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
ch[1] = (int16_t)(((int32_t)pil[0]*rxF[1] + (int32_t)pil[1]*rxF[0])>>15);
ch = c16mulShift(*pil, rxF[re_offset], 15);
#ifdef DEBUG_PBCH
printf("pilot 1 : rxF - > (%d,%d) ch -> (%d,%d), pil -> (%d,%d) \n",rxF[0],rxF[1],ch[0],ch[1],pil[0],pil[1]);
#endif
multadd_real_vector_complex_scalar(fm,
ch,
dl_ch,
16);
pil += 2;
re_offset = (re_offset+4) % ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k+re_offset)];
ch[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
ch[1] = (int16_t)(((int32_t)pil[0]*rxF[1] + (int32_t)pil[1]*rxF[0])>>15);
#ifdef DEBUG_PBCH
printf("pilot 2 : rxF - > (%d,%d) ch -> (%d,%d), pil -> (%d,%d) \n",rxF[0],rxF[1],ch[0],ch[1],pil[0],pil[1]);
#endif
multadd_real_vector_complex_scalar(fr,
ch,
dl_ch,
16);
pil += 2;
re_offset = (re_offset+4) % ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k+re_offset)];
DEBUG_PBCH("pilot 2: rxF= (%d,%d), ch= (%d,%d), pil=(%d,%d)\n", rxF[re_offset].r, rxF[re_offset].i, ch.r, ch.i, pil->r, pil->i);
multaddRealVectorComplexScalar(fr, ch, dl_ch, 16);
pil++;
re_offset = (re_offset + 4) % ue->frame_parms.ofdm_symbol_size;
dl_ch += 24;
for (pilot_cnt=3; pilot_cnt<(3*20); pilot_cnt += 3) {
for (int pilot_cnt = 3; pilot_cnt < (3 * 20); pilot_cnt += 3) {
// if (pilot_cnt == 30)
// rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k)];
// in 2nd symbol, skip middle REs (48 with DMRS, 144 for SSS, and another 48 with DMRS)
if (dmrss == 1 && pilot_cnt == 12) {
pilot_cnt=48;
re_offset = (re_offset+144) % ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k+re_offset)];
re_offset = (re_offset + 144) % ue->frame_parms.ofdm_symbol_size;
dl_ch += 288;
}
ch[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
ch[1] = (int16_t)(((int32_t)pil[0]*rxF[1] + (int32_t)pil[1]*rxF[0])>>15);
ch = c16mulShift(*pil, rxF[re_offset], 15);
DEBUG_PBCH("pilot %u: rxF= (%d,%d), ch= (%d,%d), pil=(%d,%d)\n",
pilot_cnt,
rxF[re_offset].r,
rxF[re_offset].i,
ch.r,
ch.i,
pil->r,
pil->i);
multaddRealVectorComplexScalar(fl, ch, dl_ch, 16);
#ifdef DEBUG_PBCH
printf("pilot %u : rxF - > (%d,%d) ch -> (%d,%d), pil -> (%d,%d) \n",pilot_cnt,rxF[0],rxF[1],ch[0],ch[1],pil[0],pil[1]);
#endif
multadd_real_vector_complex_scalar(fl,
ch,
dl_ch,
16);
//for (int i= 0; i<8; i++)
// printf("pilot_cnt %d dl_ch %d %d\n", pilot_cnt, dl_ch+i, *(dl_ch+i));
pil += 2;
pil++;
re_offset = (re_offset+4) % ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k+re_offset)];
ch[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
ch[1] = (int16_t)(((int32_t)pil[0]*rxF[1] + (int32_t)pil[1]*rxF[0])>>15);
#ifdef DEBUG_PBCH
printf("pilot %u : rxF - > (%d,%d) ch -> (%d,%d), pil -> (%d,%d) \n",pilot_cnt+1,rxF[0],rxF[1],ch[0],ch[1],pil[0],pil[1]);
#endif
multadd_real_vector_complex_scalar(fm,
ch,
dl_ch,
16);
pil += 2;
ch = c16mulShift(*pil, rxF[re_offset], 15);
DEBUG_PBCH("pilot %u: rxF= (%d,%d), ch= (%d,%d), pil=(%d,%d)\n",
pilot_cnt + 1,
rxF[re_offset].r,
rxF[re_offset].i,
ch.r,
ch.i,
pil->r,
pil->i);
multaddRealVectorComplexScalar(fm, ch, dl_ch, 16);
pil++;
re_offset = (re_offset+4) % ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k+re_offset)];
ch[0] = (int16_t)(((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1])>>15);
ch[1] = (int16_t)(((int32_t)pil[0]*rxF[1] + (int32_t)pil[1]*rxF[0])>>15);
#ifdef DEBUG_PBCH
printf("pilot %u : rxF - > (%d,%d) ch -> (%d,%d), pil -> (%d,%d) \n",pilot_cnt+2,rxF[0],rxF[1],ch[0],ch[1],pil[0],pil[1]);
#endif
multadd_real_vector_complex_scalar(fr,
ch,
dl_ch,
16);
pil += 2;
re_offset = (re_offset+4) % ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k+re_offset)];
dl_ch += 24;
ch = c16mulShift(*pil, rxF[re_offset], 15);
DEBUG_PBCH("pilot %u: rxF= (%d,%d), ch= (%d,%d), pil=(%d,%d)\n",
pilot_cnt + 2,
rxF[re_offset].r,
rxF[re_offset].i,
ch.r,
ch.i,
pil->r,
pil->i);
multaddRealVectorComplexScalar(fr, ch, dl_ch, 16);
pil++;
re_offset = (re_offset + 4) % ue->frame_parms.ofdm_symbol_size;
dl_ch += 12;
}
if( dmrss == 2) // update time statistics for last PBCH symbol
@@ -1117,7 +1013,7 @@ void nr_pdcch_channel_estimation(PHY_VARS_NR_UE *ue,
// generate pilot
int pilot[(nb_rb_coreset + dmrs_ref) * 3] __attribute__((aligned(16)));
// Note: pilot returned by the following function is already the complex conjugate of the transmitted DMRS
nr_pdcch_dmrs_rx(ue, Ns, ue->nr_gold_pdcch[gNB_id][Ns][symbol], &pilot[0], 2000, (nb_rb_coreset + dmrs_ref));
nr_pdcch_dmrs_rx(ue, Ns, ue->nr_gold_pdcch[gNB_id][Ns][symbol], (c16_t *)pilot, 2000, (nb_rb_coreset + dmrs_ref));
for (aarx=0; aarx<ue->frame_parms.nb_antennas_rx; aarx++) {
@@ -1655,14 +1551,7 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
c16_t pilot[3280] __attribute__((aligned(16)));
// Note: pilot returned by the following function is already the complex conjugate of the transmitted DMRS
nr_pdsch_dmrs_rx(ue,
Ns,
ue->nr_gold_pdsch[gNB_id][Ns][symbol][nscid],
(int32_t *)pilot,
1000 + p,
0,
nb_rb_pdsch + rb_offset,
config_type);
nr_pdsch_dmrs_rx(ue, Ns, ue->nr_gold_pdsch[gNB_id][Ns][symbol][nscid], pilot, 1000 + p, 0, nb_rb_pdsch + rb_offset, config_type);
uint8_t nushift = 0;
if (config_type == NFAPI_NR_DMRS_TYPE1) {
openair1/PHY/NR_UE_ESTIMATION/nr_ue_measurements.c
+4 -4
View File
@@ -92,15 +92,15 @@ void nr_ue_measurements(PHY_VARS_NR_UE *ue,
int,
ue->measurements.rx_spatial_power,
NUMBER_OF_CONNECTED_gNB_MAX,
frame_parms->nb_antenna_ports_gNB,
frame_parms->nb_antennas_rx,
cmax(frame_parms->nb_antenna_ports_gNB,1),
cmax(frame_parms->nb_antennas_rx,1),
false);
allocCast3D(rx_spatial_power_dB,
unsigned short,
ue->measurements.rx_spatial_power_dB,
NUMBER_OF_CONNECTED_gNB_MAX,
frame_parms->nb_antenna_ports_gNB,
frame_parms->nb_antennas_rx,
cmax(frame_parms->nb_antenna_ports_gNB,1),
cmax(frame_parms->nb_antennas_rx,1),
false);
// signal measurements
openair1/PHY/NR_UE_TRANSPORT/nr_initial_sync.c
+1 -6
View File
@@ -74,14 +74,11 @@ int nr_pbch_detection(const UE_nr_rxtx_proc_t *proc,
for(int i=pbch_initial_symbol; i<pbch_initial_symbol+3;i++)
nr_pbch_dmrs_correlation(ue, proc, i, i - pbch_initial_symbol, current_ssb, rxdataF);
stop_meas(&ue->dlsch_channel_estimation_stats);
current_ssb->metric = current_ssb->c_re * current_ssb->c_re + current_ssb->c_im * current_ssb->c_im;
current_ssb++;
}
}
NR_UE_SSB *temp_ptr=best_ssb;
while (ret!=0 && temp_ptr != NULL) {
for (NR_UE_SSB *temp_ptr = best_ssb; ret != 0 && temp_ptr < best_ssb + N_L * N_hf; temp_ptr++) {
start_meas(&ue->dlsch_channel_estimation_stats);
// computing channel estimation for selected best ssb
const int estimateSz = frame_parms->symbols_per_slot * frame_parms->ofdm_symbol_size;
@@ -107,8 +104,6 @@ int nr_pbch_detection(const UE_nr_rxtx_proc_t *proc,
1,
1);
}
temp_ptr++;
}
if (ret == 0) {
openair1/PHY/TOOLS/tools_defs.h
+19
View File
@@ -309,6 +309,25 @@ The function implemented is : \f$\mathbf{y} = y + \alpha\mathbf{x}\f$
*/
void multadd_real_vector_complex_scalar(const int16_t *x, const int16_t *alpha, int16_t *y, uint32_t N);
// Same with correct types
static inline void multaddRealVectorComplexScalar(const c16_t *in, const c16_t alpha, c16_t *out, uint32_t N)
{
// do 8 multiplications at a time
simd_q15_t *x_128 = (simd_q15_t *)in, *y_128 = (simd_q15_t *)out;
// printf("alpha = %d,%d\n",alpha[0],alpha[1]);
const simd_q15_t alpha_r_128 = set1_int16(alpha.r);
const simd_q15_t alpha_i_128 = set1_int16(alpha.i);
for (unsigned int i = 0; i < N >> 3; i++) {
const simd_q15_t yr = mulhi_s1_int16(alpha_r_128, x_128[i]);
const simd_q15_t yi = mulhi_s1_int16(alpha_i_128, x_128[i]);
const simd_q15_t tmp = simde_mm_loadu_si128(y_128);
simde_mm_storeu_si128(y_128++, simde_mm_adds_epi16(tmp, simde_mm_unpacklo_epi16(yr, yi)));
const simd_q15_t tmp2 = simde_mm_loadu_si128(y_128);
simde_mm_storeu_si128(y_128++, simde_mm_adds_epi16(tmp2, simde_mm_unpackhi_epi16(yr, yi)));
}
}
static __attribute__((always_inline)) inline void multadd_real_four_symbols_vector_complex_scalar(const int16_t *x,
c16_t *alpha,
c16_t *y)
openair1/PHY/defs_nr_UE.h
+1 -3
View File
@@ -311,9 +311,7 @@ typedef struct {
typedef struct NR_UE_SSB {
uint8_t i_ssb; // i_ssb between 0 and 7 (it corresponds to ssb_index only for Lmax=4,8)
uint8_t n_hf; // n_hf = 0,1 for Lmax =4 or n_hf = 0 for Lmax =8,64
uint32_t metric; // metric to order SSB hypothesis
uint32_t c_re;
uint32_t c_im;
c32_t c;
} NR_UE_SSB;
typedef struct UE_NR_SCAN_INFO_s {