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Commit a629feec authored by rmagueta's avatar rmagueta
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Remove duplicated nr_est_delay_pdsch()/nr_est_timing_advance_pusch() functions... 

Remove duplicated nr_est_delay_pdsch()/nr_est_timing_advance_pusch() functions and just create the function nr_est_delay()
parent 9f7b1590
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Showing with 34 additions and 60 deletions
common/utils/nr/nr_common.c
View file @ a629feec
......@@ -801,3 +801,27 @@ void freq2time(uint16_t ofdm_symbol_size,
break;
}
}
void nr_est_delay(int ofdm_symbol_size, const c16_t *ls_est, c16_t *ch_estimates_time, delay_t *delay)
{
freq2time(ofdm_symbol_size, (int16_t *)ls_est, (int16_t *)ch_estimates_time);
int max_pos = delay->delay_max_pos;
int max_val = delay->delay_max_val;
const int sync_pos = 0;
for (int i = 0; i < ofdm_symbol_size; i++) {
int temp = c16amp2(ch_estimates_time[i]) >> 1;
if (temp > max_val) {
max_pos = i;
max_val = temp;
}
}
if (max_pos > ofdm_symbol_size / 2)
max_pos = max_pos - ofdm_symbol_size;
delay->delay_max_pos = max_pos;
delay->delay_max_val = max_val;
delay->est_delay = max_pos - sync_pos;
}
common/utils/nr/nr_common.h
View file @ a629feec
......@@ -129,6 +129,8 @@ void freq2time(uint16_t ofdm_symbol_size,
int16_t *freq_signal,
int16_t *time_signal);
void nr_est_delay(int ofdm_symbol_size, const c16_t *ls_est, c16_t *ch_estimates_time, delay_t *delay);
#define CEILIDIV(a,b) ((a+b-1)/b)
#define ROUNDIDIV(a,b) (((a<<1)+b)/(b<<1))
......
openair1/PHY/NR_ESTIMATION/nr_measurements_gNB.c
View file @ a629feec
......@@ -38,29 +38,6 @@
extern openair0_config_t openair0_cfg[MAX_CARDS];
void nr_est_timing_advance_pusch(const NR_DL_FRAME_PARMS *frame_parms, const int32_t *ul_ch_estimates_time, delay_t *delay)
{
int max_pos = delay->delay_max_pos;
int max_val = delay->delay_max_val;
const int sync_pos = 0;
for (int i = 0; i < frame_parms->ofdm_symbol_size; i++) {
c16_t *sample = (c16_t *)&ul_ch_estimates_time[i];
int temp = (sample->r * sample->r / 2) + (sample->i * sample->i / 2);
if (temp > max_val) {
max_pos = i;
max_val = temp;
}
}
if (max_pos > frame_parms->ofdm_symbol_size / 2)
max_pos = max_pos - frame_parms->ofdm_symbol_size;
delay->delay_max_pos = max_pos;
delay->delay_max_val = max_val;
delay->est_delay = max_pos - sync_pos;
}
int nr_est_timing_advance_srs(const NR_DL_FRAME_PARMS *frame_parms,
const int32_t srs_estimated_channel_time[][frame_parms->ofdm_symbol_size]) {
int timing_advance = 0;
......
openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
View file @ a629feec
......@@ -184,9 +184,7 @@ int nr_pusch_channel_estimation(PHY_VARS_gNB *gNB,
pilot_cnt += 2;
}
freq2time(symbolSize, (int16_t *)ul_ls_est, (int16_t *)pusch_vars->ul_ch_estimates_time[aarx]);
nr_est_timing_advance_pusch(&gNB->frame_parms, pusch_vars->ul_ch_estimates_time[aarx], delay);
nr_est_delay(gNB->frame_parms.ofdm_symbol_size, ul_ls_est, (c16_t *)pusch_vars->ul_ch_estimates_time[aarx], delay);
int delay_idx = get_delay_idx(delay->est_delay, MAX_DELAY_COMP);
c16_t *ul_delay_table = gNB->frame_parms.delay_table[delay_idx];
......@@ -270,8 +268,7 @@ int nr_pusch_channel_estimation(PHY_VARS_gNB *gNB,
}
// Delay compensation
freq2time(symbolSize, (int16_t *)ul_ls_est, (int16_t *)pusch_vars->ul_ch_estimates_time[aarx]);
nr_est_timing_advance_pusch(&gNB->frame_parms, pusch_vars->ul_ch_estimates_time[aarx], delay);
nr_est_delay(gNB->frame_parms.ofdm_symbol_size, ul_ls_est, (c16_t *)pusch_vars->ul_ch_estimates_time[aarx], delay);
int delay_idx = get_delay_idx(-delay->est_delay, MAX_DELAY_COMP);
c16_t *ul_delay_table = gNB->frame_parms.delay_table[delay_idx];
for (int n = 0; n < nb_rb_pusch * NR_NB_SC_PER_RB; n++) {
......
openair1/PHY/NR_ESTIMATION/nr_ul_estimation.h
View file @ a629feec
......@@ -60,9 +60,6 @@ void nr_gnb_measurements(PHY_VARS_gNB *gNB,
unsigned char symbol,
uint8_t nrOfLayers);
void nr_est_timing_advance_pusch(const NR_DL_FRAME_PARMS *frame_parms,
const int32_t *ul_ch_estimates_time, delay_t *delay);
int nr_est_timing_advance_srs(const NR_DL_FRAME_PARMS *frame_parms,
const int32_t srs_estimated_channel_time[][frame_parms->ofdm_symbol_size]);
......
openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c
View file @ a629feec
......@@ -1303,32 +1303,6 @@ void nr_pdcch_channel_estimation(PHY_VARS_NR_UE *ue,
}
}
void nr_est_delay_pdsch(const NR_DL_FRAME_PARMS *frame_parms, const c16_t *dl_ls_est, delay_t *delay)
{
c16_t dl_ch_estimates_time[frame_parms->ofdm_symbol_size] __attribute__((aligned(32)));
memset(dl_ch_estimates_time, 0, sizeof(dl_ch_estimates_time));
freq2time(frame_parms->ofdm_symbol_size, (int16_t *)dl_ls_est, (int16_t *)dl_ch_estimates_time);
int max_pos = delay->delay_max_pos;
int max_val = delay->delay_max_val;
const int sync_pos = 0;
for (int i = 0; i < frame_parms->ofdm_symbol_size; i++) {
int temp = c16amp2(dl_ch_estimates_time[i]) >> 1;
if (temp > max_val) {
max_pos = i;
max_val = temp;
}
}
if (max_pos > frame_parms->ofdm_symbol_size / 2)
max_pos = max_pos - frame_parms->ofdm_symbol_size;
delay->delay_max_pos = max_pos;
delay->delay_max_val = max_val;
delay->est_delay = max_pos - sync_pos;
}
void NFAPI_NR_DMRS_TYPE1_linear_interp(NR_DL_FRAME_PARMS *frame_parms,
c16_t *rxF,
c16_t *pil,
......@@ -1370,7 +1344,9 @@ void NFAPI_NR_DMRS_TYPE1_linear_interp(NR_DL_FRAME_PARMS *frame_parms,
#endif
}
nr_est_delay_pdsch(frame_parms, dl_ls_est, delay);
c16_t ch_estimates_time[frame_parms->ofdm_symbol_size] __attribute__((aligned(32)));
memset(ch_estimates_time, 0, sizeof(ch_estimates_time));
nr_est_delay(frame_parms->ofdm_symbol_size, dl_ls_est, ch_estimates_time, delay);
int delay_idx = get_delay_idx(delay->est_delay, MAX_DELAY_COMP);
c16_t *dl_delay_table = frame_parms->delay_table[delay_idx];
......@@ -1520,7 +1496,9 @@ void NFAPI_NR_DMRS_TYPE2_linear_interp(NR_DL_FRAME_PARMS *frame_parms,
re_offset = (re_offset + 5) % frame_parms->ofdm_symbol_size;
}
nr_est_delay_pdsch(frame_parms, dl_ls_est, delay);
c16_t ch_estimates_time[frame_parms->ofdm_symbol_size] __attribute__((aligned(32)));
memset(ch_estimates_time, 0, sizeof(ch_estimates_time));
nr_est_delay(frame_parms->ofdm_symbol_size, dl_ls_est, ch_estimates_time, delay);
int delay_idx = get_delay_idx(delay->est_delay, MAX_DELAY_COMP);
c16_t *dl_delay_table = frame_parms->delay_table[delay_idx];
......
openair1/SIMULATION/NR_PHY/ulsim.c
View file @ a629feec
......@@ -1299,7 +1299,6 @@ int main(int argc, char **argv)
frame_parms->ofdm_symbol_size,
1,
1);
LOG_M("chestT0.m", "chT0", &pusch_vars->ul_ch_estimates_time[0][0], frame_parms->ofdm_symbol_size, 1, 1);
LOG_M("chestF0_ext.m",
"chF0_ext",
&pusch_vars->ul_ch_estimates_ext[0][(start_symbol + 1) * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size))],
......
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