maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

use common channel level for PUSCH

Browse Source
This commit is contained in:
francescomani
2025-08-19 16:24:17 +02:00
parent 65d0fb152e
commit 8d904dbf23
1 changed files with 11 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair1/PHY/NR_TRANSPORT/nr_ulsch_demodulation.c
+11 -35
View File
@@ -7,6 +7,7 @@
#include "PHY/NR_REFSIG/ptrs_nr.h"
#include "PHY/NR_ESTIMATION/nr_ul_estimation.h"
#include "PHY/defs_nr_common.h"
#include "PHY/nr_phy_common/inc/nr_phy_common.h"
#include "common/utils/nr/nr_common.h"
#include <openair1/PHY/TOOLS/phy_scope_interface.h>
#include "PHY/sse_intrin.h"
@@ -210,31 +211,6 @@ static int get_nb_re_pusch (NR_DL_FRAME_PARMS *frame_parms, nfapi_nr_pusch_pdu_t
} else return(rel15_ul->rb_size * NR_NB_SC_PER_RB);
}
// compute average channel_level on each (TX,RX) antenna pair
static void nr_ulsch_channel_level(int size_est,
int ul_ch_estimates_ext[][size_est],
NR_DL_FRAME_PARMS *frame_parms,
int32_t *avg,
uint8_t symbol,
uint32_t len,
uint8_t nrOfLayers)
{
int16_t x = factor2(len);
int16_t y = (len)>>x;
for (int aatx = 0; aatx < nrOfLayers; aatx++) {
for (int aarx = 0; aarx < frame_parms->nb_antennas_rx; aarx++) {
simde__m128i *ul_ch128 = (simde__m128i *)&ul_ch_estimates_ext[aatx * frame_parms->nb_antennas_rx + aarx][symbol * len];
//compute average level
avg[aatx * frame_parms->nb_antennas_rx + aarx] = simde_mm_average(ul_ch128, len, x, y);
//LOG_D(PHY, "Channel level: %d\n", avg[aatx * frame_parms->nb_antennas_rx + aarx]);
}
}
}
static void nr_ulsch_channel_compensation(uint32_t buffer_length,
int nb_rx_ant,
c16_t rxFext[][buffer_length],
@@ -1394,8 +1370,6 @@ int nr_rx_pusch_tp(PHY_VARS_gNB *gNB,
rel15_ul,
frame_parms);
int avgs = 0;
int avg[frame_parms->nb_antennas_rx*rel15_ul->nrOfLayers];
uint8_t shift_ch_ext = rel15_ul->nrOfLayers > 1 ? log2_approx(max_ch >> 11) : 0;
//----------------------------------------------------------
@@ -1410,15 +1384,17 @@ int nr_rx_pusch_tp(PHY_VARS_gNB *gNB,
rel15_ul->nrOfLayers,
rel15_ul->rb_size,
shift_ch_ext);
nr_ulsch_channel_level(size_est,
ul_ch_estimates_ext,
frame_parms,
avg,
meas_symbol, // index of the start symbol
nb_re_pusch, // number of the re in pusch
rel15_ul->nrOfLayers);
int avg[frame_parms->nb_antennas_rx*rel15_ul->nrOfLayers];
nr_channel_level(meas_symbol,
size_est,
(c16_t (*)[size_est])ul_ch_estimates_ext,
frame_parms->nb_antennas_rx,
rel15_ul->nrOfLayers,
avg,
nb_re_pusch);
int avgs = 0;
for (int nl = 0; nl < rel15_ul->nrOfLayers; nl++)
for (int aarx = 0; aarx < frame_parms->nb_antennas_rx; aarx++)
avgs = cmax(avgs, avg[nl * frame_parms->nb_antennas_rx + aarx]);