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Commit dcc107bf authored by francescomani's avatar francescomani
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use layer number and not dmrs port number to index pusch channel estimates... 

use layer number and not dmrs port number to index pusch channel estimates (plus some code improvement)
parent be807c92
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Showing with 16 additions and 21 deletions
openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
View file @ dcc107bf
......@@ -66,14 +66,15 @@ __attribute__((always_inline)) inline c16_t c32x16cumulVectVectWithSteps(c16_t *
int nr_pusch_channel_estimation(PHY_VARS_gNB *gNB,
unsigned char Ns,
int nl,
unsigned short p,
unsigned char symbol,
int ul_id,
unsigned short bwp_start_subcarrier,
nfapi_nr_pusch_pdu_t *pusch_pdu,
int *max_ch,
uint32_t *nvar) {
uint32_t *nvar)
{
c16_t pilot[3280] __attribute__((aligned(32)));
const int chest_freq = gNB->chest_freq;
......@@ -81,20 +82,17 @@ int nr_pusch_channel_estimation(PHY_VARS_gNB *gNB,
FILE *debug_ch_est;
debug_ch_est = fopen("debug_ch_est.txt","w");
#endif
//uint16_t Nid_cell = (eNB_offset == 0) ? gNB->frame_parms.Nid_cell : gNB->measurements.adj_cell_id[eNB_offset-1];
NR_gNB_PUSCH *pusch_vars = &gNB->pusch_vars[ul_id];
c16_t **ul_ch_estimates = (c16_t **)pusch_vars->ul_ch_estimates;
const int symbolSize = gNB->frame_parms.ofdm_symbol_size;
const int soffset = (Ns&3)*gNB->frame_parms.symbols_per_slot*symbolSize;
const int soffset = (Ns & 3) * gNB->frame_parms.symbols_per_slot*symbolSize;
const int nushift = (p >> 1) & 1;
int ch_offset = symbolSize*symbol;
int ch_offset = symbolSize*symbol;
const int symbol_offset = symbolSize*symbol;
const int k0 = bwp_start_subcarrier;
const int nb_rb_pusch = pusch_pdu->rb_size;
LOG_D(PHY, "In %s: ch_offset %d, soffset %d, symbol_offset %d, OFDM size %d, Ns = %d, k0 = %d, symbol %d\n",
__FUNCTION__,
LOG_D(PHY, "ch_offset %d, soffset %d, symbol_offset %d, OFDM size %d, Ns = %d, k0 = %d, symbol %d\n",
ch_offset, soffset,
symbol_offset,
symbolSize,
......@@ -154,7 +152,7 @@ int nr_pusch_channel_estimation(PHY_VARS_gNB *gNB,
for (int aarx=0; aarx<gNB->frame_parms.nb_antennas_rx; aarx++) {
c16_t *rxdataF = (c16_t *)&gNB->common_vars.rxdataF[aarx][symbol_offset];
c16_t *ul_ch = &ul_ch_estimates[p*gNB->frame_parms.nb_antennas_rx+aarx][ch_offset];
c16_t *ul_ch = &ul_ch_estimates[nl * gNB->frame_parms.nb_antennas_rx + aarx][ch_offset];
memset(ul_ch,0,sizeof(*ul_ch)*symbolSize);
#ifdef DEBUG_PUSCH
......@@ -235,7 +233,7 @@ int nr_pusch_channel_estimation(PHY_VARS_gNB *gNB,
// Revert delay
pilot_cnt = 0;
ul_ch = &ul_ch_estimates[p * gNB->frame_parms.nb_antennas_rx + aarx][ch_offset];
ul_ch = &ul_ch_estimates[nl * gNB->frame_parms.nb_antennas_rx + aarx][ch_offset];
int inv_delay_idx = get_delay_idx(-delay->est_delay, MAX_DELAY_COMP);
c16_t *ul_inv_delay_table = gNB->frame_parms.delay_table[inv_delay_idx];
for (int n = 0; n < 3 * nb_rb_pusch; n++) {
......@@ -450,7 +448,7 @@ int nr_pusch_channel_estimation(PHY_VARS_gNB *gNB,
}
#ifdef DEBUG_PUSCH
ul_ch = &ul_ch_estimates[p * gNB->frame_parms.nb_antennas_rx + aarx][ch_offset];
ul_ch = &ul_ch_estimates[nl * gNB->frame_parms.nb_antennas_rx + aarx][ch_offset];
for (int idxP = 0; idxP < ceil((float)nb_rb_pusch * 12 / 8); idxP++) {
for (int idxI = 0; idxI < 8; idxI++) {
printf("%d\t%d\t", ul_ch[idxP * 8 + idxI].r, ul_ch[idxP * 8 + idxI].i);
......
openair1/PHY/NR_ESTIMATION/nr_ul_estimation.h
View file @ dcc107bf
......@@ -43,6 +43,7 @@
int nr_pusch_channel_estimation(PHY_VARS_gNB *gNB,
unsigned char Ns,
int nl,
unsigned short p,
unsigned char symbol,
int ul_id,
......
openair1/PHY/NR_TRANSPORT/nr_ulsch_demodulation.c
View file @ dcc107bf
......@@ -1450,16 +1450,13 @@ int nr_rx_pusch_tp(PHY_VARS_gNB *gNB,
uint8_t slot,
unsigned char harq_pid)
{
uint8_t aarx;
uint32_t bwp_start_subcarrier;
NR_DL_FRAME_PARMS *frame_parms = &gNB->frame_parms;
nfapi_nr_pusch_pdu_t *rel15_ul = &gNB->ulsch[ulsch_id].harq_process->ulsch_pdu;
NR_gNB_PUSCH *pusch_vars = &gNB->pusch_vars[ulsch_id];
pusch_vars->dmrs_symbol = INVALID_VALUE;
gNB->nbSymb = 0;
bwp_start_subcarrier = ((rel15_ul->rb_start + rel15_ul->bwp_start)*NR_NB_SC_PER_RB + frame_parms->first_carrier_offset) % frame_parms->ofdm_symbol_size;
uint32_t bwp_start_subcarrier = ((rel15_ul->rb_start + rel15_ul->bwp_start) * NR_NB_SC_PER_RB + frame_parms->first_carrier_offset) % frame_parms->ofdm_symbol_size;
LOG_D(PHY,"pusch %d.%d : bwp_start_subcarrier %d, rb_start %d, first_carrier_offset %d\n", frame,slot,bwp_start_subcarrier, rel15_ul->rb_start, frame_parms->first_carrier_offset);
LOG_D(PHY,"pusch %d.%d : ul_dmrs_symb_pos %x\n",frame,slot,rel15_ul->ul_dmrs_symb_pos);
......@@ -1477,11 +1474,12 @@ int nr_rx_pusch_tp(PHY_VARS_gNB *gNB,
if (pusch_vars->dmrs_symbol == INVALID_VALUE)
pusch_vars->dmrs_symbol = symbol;
for (int nl=0; nl<rel15_ul->nrOfLayers; nl++) {
for (int nl = 0; nl < rel15_ul->nrOfLayers; nl++) {
uint32_t nvar_tmp = 0;
nr_pusch_channel_estimation(gNB,
slot,
get_dmrs_port(nl,rel15_ul->dmrs_ports),
nl,
get_dmrs_port(nl, rel15_ul->dmrs_ports),
symbol,
ulsch_id,
bwp_start_subcarrier,
......@@ -1502,10 +1500,8 @@ int nr_rx_pusch_tp(PHY_VARS_gNB *gNB,
frame_parms->nb_antennas_rx,
frame_parms->N_RB_UL,
false);
for (aarx = 0; aarx < frame_parms->nb_antennas_rx; aarx++)
{
if (symbol == rel15_ul->start_symbol_index)
{
for (int aarx = 0; aarx < frame_parms->nb_antennas_rx; aarx++) {
if (symbol == rel15_ul->start_symbol_index) {
pusch_vars->ulsch_power[aarx] = 0;
pusch_vars->ulsch_noise_power[aarx] = 0;
}
......
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