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OpenXG-RAN
Commit abfd0723 authored by Ahmed Hussein's avatar Ahmed Hussein Committed by Thomas Schlichter
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channel estimation, compensation, etc .. 

Added the following folder:
- ../openair1/PHY/NR_ESTIMATION/

Added the following file to CMakelists.txt:
- ../openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c

Added the following functions:
- nr_pusch_dmrs_rx
- nr_gold_pusch
- nr_ulsch_channel_level
- nr_ulsch_channel_compensation
- nr_ulsch_scale_channel is commented out (I think only used for downlink)

Changes from Khalid Ahmed Mahmoud Mohamed:
- nr_pusch_channel_estimation is used
- nr_ulsch_scale_channel is used
- nr_ulsch_channel_level is used
- nr_ulsch_channel_compensation is used
- multiple logging options for channel and signal magnitude
parent 9d27079f
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Showing with 1568 additions and 142 deletions
cmake_targets/CMakeLists.txt
View file @ abfd0723
...@@ -1394,6 +1394,8 @@ set(PHY_SRC_UE ...@@ -1394,6 +1394,8 @@ set(PHY_SRC_UE
${OPENAIR1_DIR}/PHY/NR_TRANSPORT/nr_ulsch_llr_computation.c ${OPENAIR1_DIR}/PHY/NR_TRANSPORT/nr_ulsch_llr_computation.c
${OPENAIR1_DIR}/PHY/NR_TRANSPORT/nr_ulsch_demodulation.c ${OPENAIR1_DIR}/PHY/NR_TRANSPORT/nr_ulsch_demodulation.c
${OPENAIR1_DIR}/PHY/NR_REFSIG/nr_gold.c ${OPENAIR1_DIR}/PHY/NR_REFSIG/nr_gold.c
${OPENAIR1_DIR}/PHY/NR_UE_ESTIMATION/filt16a_32.c
${OPENAIR1_DIR}/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
${OPENAIR1_DIR}/PHY/TOOLS/file_output.c ${OPENAIR1_DIR}/PHY/TOOLS/file_output.c
${OPENAIR1_DIR}/PHY/TOOLS/cadd_vv.c ${OPENAIR1_DIR}/PHY/TOOLS/cadd_vv.c
#${OPENAIR1_DIR}/PHY/TOOLS/lte_dfts.c #${OPENAIR1_DIR}/PHY/TOOLS/lte_dfts.c
...@@ -1438,6 +1440,7 @@ set(PHY_SRC_UE ...@@ -1438,6 +1440,7 @@ set(PHY_SRC_UE
${OPENAIR1_DIR}/PHY/NR_REFSIG/ul_ref_seq_nr.c ${OPENAIR1_DIR}/PHY/NR_REFSIG/ul_ref_seq_nr.c
${OPENAIR1_DIR}/PHY/NR_REFSIG/nr_dmrs_rx.c ${OPENAIR1_DIR}/PHY/NR_REFSIG/nr_dmrs_rx.c
${OPENAIR1_DIR}/PHY/NR_REFSIG/nr_gold_ue.c ${OPENAIR1_DIR}/PHY/NR_REFSIG/nr_gold_ue.c
${OPENAIR1_DIR}/PHY/NR_UE_ESTIMATION/filt16a_32.c
${OPENAIR1_DIR}/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c ${OPENAIR1_DIR}/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c
${OPENAIR1_DIR}/PHY/NR_UE_ESTIMATION/nr_adjust_synch_ue.c ${OPENAIR1_DIR}/PHY/NR_UE_ESTIMATION/nr_adjust_synch_ue.c
${OPENAIR1_DIR}/PHY/NR_UE_ESTIMATION/nr_ue_measurements.c ${OPENAIR1_DIR}/PHY/NR_UE_ESTIMATION/nr_ue_measurements.c
......
openair1/PHY/INIT/nr_init.c
View file @ abfd0723
...@@ -208,24 +208,32 @@ int phy_init_nr_gNB(PHY_VARS_gNB *gNB, ...@@ -208,24 +208,32 @@ int phy_init_nr_gNB(PHY_VARS_gNB *gNB,
for (int UE_id=0; UE_id<NUMBER_OF_UE_MAX; UE_id++) { for (int UE_id=0; UE_id<NUMBER_OF_UE_MAX; UE_id++) {
//FIXME //FIXME
pusch_vars[UE_id] = (NR_gNB_PUSCH *)malloc16_clear( sizeof(NR_gNB_PUSCH) ); pusch_vars[UE_id] = (NR_gNB_PUSCH *)malloc16_clear( sizeof(NR_gNB_PUSCH) );
pusch_vars[UE_id]->rxdataF_ext = (int32_t **)malloc16( 2*sizeof(int32_t *) ); pusch_vars[UE_id]->rxdataF_ext = (int32_t **)malloc16( fp->nb_antennas_rx*sizeof(int32_t *) );
pusch_vars[UE_id]->rxdataF_ext2 = (int32_t **)malloc16( 2*sizeof(int32_t *) ); pusch_vars[UE_id]->rxdataF_ext2 = (int32_t **)malloc16( fp->nb_antennas_rx*sizeof(int32_t *) );
pusch_vars[UE_id]->drs_ch_estimates = (int32_t **)malloc16( 2*sizeof(int32_t *) ); pusch_vars[UE_id]->ul_ch_estimates = (int32_t **)malloc16( fp->nb_antennas_rx*sizeof(int32_t *) );
pusch_vars[UE_id]->drs_ch_estimates_time = (int32_t **)malloc16( 2*sizeof(int32_t *) ); pusch_vars[UE_id]->ul_ch_estimates_ext = (int32_t **)malloc16( fp->nb_antennas_rx*sizeof(int32_t *) );
pusch_vars[UE_id]->rxdataF_comp = (int32_t **)malloc16( 2*sizeof(int32_t *) ); pusch_vars[UE_id]->ul_ch_estimates_time = (int32_t **)malloc16( fp->nb_antennas_rx*sizeof(int32_t *) );
pusch_vars[UE_id]->ul_ch_mag = (int32_t **)malloc16( 2*sizeof(int32_t *) ); pusch_vars[UE_id]->rxdataF_comp = (int32_t **)malloc16( fp->nb_antennas_rx*sizeof(int32_t *) );
pusch_vars[UE_id]->ul_ch_magb = (int32_t **)malloc16( 2*sizeof(int32_t *) ); pusch_vars[UE_id]->ul_ch_mag0 = (int32_t **)malloc16( fp->nb_antennas_rx*sizeof(int32_t *) );
pusch_vars[UE_id]->ul_ch_magb0 = (int32_t **)malloc16( fp->nb_antennas_rx*sizeof(int32_t *) );
for (i=0; i<2; i++) { pusch_vars[UE_id]->ul_ch_mag = (int32_t **)malloc16( fp->nb_antennas_rx*sizeof(int32_t *) );
pusch_vars[UE_id]->ul_ch_magb = (int32_t **)malloc16( fp->nb_antennas_rx*sizeof(int32_t *) );
pusch_vars[UE_id]->rho = (int32_t **)malloc16_clear( fp->nb_antennas_rx*sizeof(int32_t*) );
for (i=0; i<fp->nb_antennas_rx; i++) {
// RK 2 times because of output format of FFT! // RK 2 times because of output format of FFT!
// FIXME We should get rid of this // FIXME We should get rid of this
pusch_vars[UE_id]->rxdataF_ext[i] = (int32_t *)malloc16_clear( sizeof(int32_t)*cfg->rf_config.ul_carrier_bandwidth.value*12*fp->symbols_per_slot ); pusch_vars[UE_id]->rxdataF_ext[i] = (int32_t *)malloc16_clear( sizeof(int32_t)*cfg->rf_config.ul_carrier_bandwidth.value*12*fp->symbols_per_slot );
pusch_vars[UE_id]->rxdataF_ext2[i] = (int32_t *)malloc16_clear( sizeof(int32_t)*cfg->rf_config.ul_carrier_bandwidth.value*12*fp->symbols_per_slot ); pusch_vars[UE_id]->rxdataF_ext2[i] = (int32_t *)malloc16_clear( sizeof(int32_t)*cfg->rf_config.ul_carrier_bandwidth.value*12*fp->symbols_per_slot );
pusch_vars[UE_id]->drs_ch_estimates[i] = (int32_t *)malloc16_clear( sizeof(int32_t)*cfg->rf_config.ul_carrier_bandwidth.value*12*fp->symbols_per_slot ); pusch_vars[UE_id]->ul_ch_estimates[i] = (int32_t *)malloc16_clear( sizeof(int32_t)*cfg->rf_config.ul_carrier_bandwidth.value*12*fp->symbols_per_slot );
pusch_vars[UE_id]->drs_ch_estimates_time[i] = (int32_t *)malloc16_clear( 2*sizeof(int32_t)*fp->ofdm_symbol_size ); pusch_vars[UE_id]->ul_ch_estimates_ext[i] = (int32_t *)malloc16_clear( sizeof(int32_t)*cfg->rf_config.ul_carrier_bandwidth.value*12*fp->symbols_per_slot );
pusch_vars[UE_id]->ul_ch_estimates_time[i] = (int32_t *)malloc16_clear( 2*sizeof(int32_t)*fp->ofdm_symbol_size );
pusch_vars[UE_id]->rxdataF_comp[i] = (int32_t *)malloc16_clear( sizeof(int32_t)*cfg->rf_config.ul_carrier_bandwidth.value*12*fp->symbols_per_slot ); pusch_vars[UE_id]->rxdataF_comp[i] = (int32_t *)malloc16_clear( sizeof(int32_t)*cfg->rf_config.ul_carrier_bandwidth.value*12*fp->symbols_per_slot );
pusch_vars[UE_id]->ul_ch_mag0[i] = (int32_t *)malloc16_clear( fp->symbols_per_slot*sizeof(int32_t)*cfg->rf_config.ul_carrier_bandwidth.value*12 );
pusch_vars[UE_id]->ul_ch_magb0[i] = (int32_t *)malloc16_clear( fp->symbols_per_slot*sizeof(int32_t)*cfg->rf_config.ul_carrier_bandwidth.value*12 );
pusch_vars[UE_id]->ul_ch_mag[i] = (int32_t *)malloc16_clear( fp->symbols_per_slot*sizeof(int32_t)*cfg->rf_config.ul_carrier_bandwidth.value*12 ); pusch_vars[UE_id]->ul_ch_mag[i] = (int32_t *)malloc16_clear( fp->symbols_per_slot*sizeof(int32_t)*cfg->rf_config.ul_carrier_bandwidth.value*12 );
pusch_vars[UE_id]->ul_ch_magb[i] = (int32_t *)malloc16_clear( fp->symbols_per_slot*sizeof(int32_t)*cfg->rf_config.ul_carrier_bandwidth.value*12 ); pusch_vars[UE_id]->ul_ch_magb[i] = (int32_t *)malloc16_clear( fp->symbols_per_slot*sizeof(int32_t)*cfg->rf_config.ul_carrier_bandwidth.value*12 );
pusch_vars[UE_id]->rho[i] = (int32_t *)malloc16_clear( sizeof(int32_t)*(fp->N_RB_UL*12*7*2) );
} }
pusch_vars[UE_id]->llr = (int16_t *)malloc16_clear( (8*((3*8*6144)+12))*sizeof(int16_t) ); // [hna] 6144 is LTE and (8*((3*8*6144)+12)) is not clear pusch_vars[UE_id]->llr = (int16_t *)malloc16_clear( (8*((3*8*6144)+12))*sizeof(int16_t) ); // [hna] 6144 is LTE and (8*((3*8*6144)+12)) is not clear
......
openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c 0 → 100644
View file @ abfd0723
/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.0 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
#include <string.h>
#include "nr_ul_estimation.h"
#include "PHY/NR_REFSIG/nr_refsig.h"
#include "PHY/NR_UE_ESTIMATION/filt16a_32.h"
//#define DEBUG_CH
int nr_pusch_channel_estimation(PHY_VARS_gNB *gNB,
uint8_t gNB_offset,
unsigned char Ns,
unsigned short p,
unsigned char symbol,
unsigned short bwp_start_subcarrier,
unsigned short nb_rb_pusch)
{
int pilot[1320] __attribute__((aligned(16)));
unsigned char aarx;
unsigned short k;
unsigned int pilot_cnt;
int16_t ch[2],*pil,*rxF,*ul_ch,*fl,*fm,*fr,*fml,*fmr,*fmm;
int ch_offset,symbol_offset, length_dmrs, UE_id = 0;
unsigned short n_idDMRS[2] = {0,1}; //to update from pusch config
#ifdef DEBUG_CH
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];
uint8_t nushift;
int **ul_ch_estimates = gNB->pusch_vars[UE_id]->ul_ch_estimates;
int **rxdataF = gNB->common_vars.rxdataF;
nushift = (p>>1)&1;
gNB->frame_parms.nushift = nushift;
ch_offset = gNB->frame_parms.ofdm_symbol_size*symbol;
symbol_offset = gNB->frame_parms.ofdm_symbol_size*symbol;
k = bwp_start_subcarrier;
int re_offset = k;
/*
#ifdef DEBUG_CH
printf("PUSCH Channel Estimation : gNB_offset %d ch_offset %d, symbol_offset %d OFDM size %d, Ncp=%d, l=%d, Ns=%d, k=%d symbol %d\n", gNB_offset,ch_offset,symbol_offset,gNB->frame_parms.ofdm_symbol_size,
gNB->frame_parms.Ncp,l,Ns,k, symbol);
#endif
*/
switch (nushift) {
case 0:
fl = filt8_l0;
fm = filt8_m0;
fr = filt8_r0;
fmm = filt8_mm0;
fml = filt8_m0;
fmr = filt8_mr0;
break;
case 1:
fl = filt8_l1;
fm = filt8_m1;
fr = filt8_r1;
fmm = filt8_mm1;
fml = filt8_ml1;
fmr = filt8_m1;
break;
default:
printf("pusch_channel_estimation: nushift=%d -> ERROR\n",nushift);
return(-1);
break;
}
//------------------generate DMRS------------------//
length_dmrs = 1; //to update from pusch config
nr_gold_pusch(gNB, symbol, n_idDMRS, length_dmrs);
nr_pusch_dmrs_rx(gNB, Ns, gNB->nr_gold_pusch[gNB_offset][Ns][0], &pilot[0], 1000, 0, nb_rb_pusch);
//------------------------------------------------//
for (aarx=0; aarx<gNB->frame_parms.nb_antennas_rx; aarx++) {
pil = (int16_t *)&pilot[0];
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k+nushift)];
ul_ch = (int16_t *)&ul_ch_estimates[aarx][ch_offset];
memset(ul_ch,0,4*(gNB->frame_parms.ofdm_symbol_size));
#ifdef DEBUG_PUSCH
printf("ch est pilot addr %p RB_DL %d\n",&pilot[0], gNB->frame_parms.N_RB_DL);
printf("k %d, first_carrier %d\n",k,gNB->frame_parms.first_carrier_offset);
printf("rxF addr %p p %d\n", rxF,p);
printf("ul_ch addr %p nushift %d\n",ul_ch,nushift);
#endif
//if ((gNB->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);
#ifdef DEBUG_PUSCH
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]);
printf("data 0 : rxF - > (%d,%d) addr %p ch -> (%d,%d), pil -> (%d,%d) \n",rxF[2],rxF[3],&rxF[2],ch[0],ch[1],pil[0],pil[1]);
#endif
multadd_real_vector_complex_scalar(fl,
ch,
ul_ch,
8);
pil+=2;
re_offset = (re_offset+2)&(gNB->frame_parms.ofdm_symbol_size-1);
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+nushift+re_offset)];
//for (int i= 0; i<8; i++)
//printf("ul_ch addr %p %d\n", ul_ch+i, *(ul_ch+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);
#ifdef DEBUG_PUSCH
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(fml,
ch,
ul_ch,
8);
pil+=2;
re_offset = (re_offset+2)&(gNB->frame_parms.ofdm_symbol_size-1);
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+nushift+re_offset)];
//printf("ul_ch addr %p\n",ul_ch);
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_PUSCH
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(fmm,
ch,
ul_ch,
8);
//for (int i= 0; i<16; i++)
//printf("ul_ch addr %p %d\n", ul_ch+i, *(ul_ch+i));
pil+=2;
re_offset = (re_offset+2)&(gNB->frame_parms.ofdm_symbol_size-1);
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+nushift+re_offset)];
ul_ch+=8;
for (pilot_cnt=3; pilot_cnt<(6*nb_rb_pusch-3); pilot_cnt+=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);
#ifdef DEBUG_CH
fprintf(debug_ch_est, "pilot %d : rxF - > (%d,%d) ch -> (%d,%d), pil -> (%d,%d) \n",pilot_cnt,rxF[0],rxF[1],ch[0],ch[1],pil[0],pil[1]);
//printf("pilot %d : 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(fm,
ch,
ul_ch,
8);
pil+=2;
re_offset = (re_offset+2)&(gNB->frame_parms.ofdm_symbol_size-1);
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+nushift+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_PUSCH
printf("pilot %d : 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(fmm,
ch,
ul_ch,
8);
pil+=2;
re_offset = (re_offset+2)&(gNB->frame_parms.ofdm_symbol_size-1);
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+nushift+re_offset)];
ul_ch+=8;
}
// Treat first 2 pilots specially (right 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);
#ifdef DEBUG_PUSCH
printf("pilot %d : 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(fm,
ch,
ul_ch,
8);
//for (int i= 0; i<8; i++)
//printf("ul_ch addr %p %d\n", ul_ch+i, *(ul_ch+i));
pil+=2;
re_offset = (re_offset+2)&(gNB->frame_parms.ofdm_symbol_size-1);
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+nushift+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_PUSCH
printf("ch 0 %d\n",((int32_t)pil[0]*rxF[0] - (int32_t)pil[1]*rxF[1]));
printf("pilot %d: rxF - > (%d,%d) addr %p ch -> (%d,%d), pil -> (%d,%d) \n",pilot_cnt+1,rxF[0],rxF[1],&rxF[0],ch[0],ch[1],pil[0],pil[1]);
#endif
multadd_real_vector_complex_scalar(fmr,
ch,
ul_ch,
8);
pil+=2;
re_offset = (re_offset+2)&(gNB->frame_parms.ofdm_symbol_size-1);
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+nushift+re_offset)];
ul_ch+=8;
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_PUSCH
printf("pilot %d: 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,
ul_ch,
8);
//}
}
#ifdef DEBUG_CH
fclose(debug_ch_est);
#endif
return(0);
}
\ No newline at end of file
openair1/PHY/NR_ESTIMATION/nr_ul_estimation.h 0 → 100644
View file @ abfd0723
/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
#ifndef __NR_UL_ESTIMATION_DEFS__H__
#define __NR_UL_ESTIMATION_DEFS__H__
#include "PHY/defs_gNB.h"
/** @addtogroup _PHY_PARAMETER_ESTIMATION_BLOCKS_
* @{
*/
/*!
\brief This function performs channel estimation including frequency interpolation
\param gNB Pointer to gNB PHY variables
\param Ns slot number (0..19)
\param p
\param symbol symbol within slot
\param bwp_start_subcarrier, first allocated subcarrier
\param nb_rb_pusch, number of allocated RBs for this UE
*/
int32_t nr_pusch_channel_estimation(PHY_VARS_gNB *gNB,
uint8_t gNB_offset,
unsigned char Ns,
unsigned short p,
unsigned char symbol,
unsigned short bwp_start_subcarrier,
unsigned short nb_rb_pusch);
#endif
openair1/PHY/NR_REFSIG/nr_dmrs_rx.c
View file @ abfd0723
...@@ -36,6 +36,8 @@ ...@@ -36,6 +36,8 @@
#include "refsig_defs_ue.h" #include "refsig_defs_ue.h"
#include "PHY/defs_nr_UE.h" #include "PHY/defs_nr_UE.h"
#include "nr_refsig.h"
#include "PHY/defs_gNB.h"
/*Table 7.4.1.1.2-1/2 from 38.211 */ /*Table 7.4.1.1.2-1/2 from 38.211 */
int wf1[8][2] = {{1,1},{1,-1},{1,1},{1,-1},{1,1},{1,-1},{1,1},{1,1}}; int wf1[8][2] = {{1,1},{1,-1},{1,1},{1,-1},{1,1},{1,-1},{1,1},{1,1}};
...@@ -48,6 +50,59 @@ short nr_rx_mod_table[14] = {0,0,23170,-23170,-23170,23170,23170,-23170,23170,2 ...@@ -48,6 +50,59 @@ short nr_rx_mod_table[14] = {0,0,23170,-23170,-23170,23170,23170,-23170,23170,2
short nr_rx_nmod_table[14] = {0,0,-23170,23170,23170,-23170,-23170,23170,-23170,-23170,23170,23170,23170,-23170}; short nr_rx_nmod_table[14] = {0,0,-23170,23170,23170,-23170,-23170,23170,-23170,-23170,23170,23170,23170,-23170};
int nr_pusch_dmrs_rx(PHY_VARS_gNB *gNB,
unsigned int Ns,
unsigned int *nr_gold_pusch,
int32_t *output,
unsigned short p,
unsigned char lp,
unsigned short nb_pusch_rb)
{
int8_t w,config_type;
short *mod_table;
unsigned char idx=0;
typedef int array_of_w[2];
array_of_w *wf;
array_of_w *wt;
config_type = 0; //to be updated by higher layer
wf = (config_type==0) ? wf1 : wf2;
wt = (config_type==0) ? wt1 : wt2;
if (config_type > 1)
LOG_E(PHY,"Bad PUSCH DMRS config type %d\n", config_type);
if ((p>=1000) && (p<((config_type==0) ? 1008 : 1012))) {
if (gNB->frame_parms.Ncp == NORMAL) {
for (int i=0; i<nb_pusch_rb*((config_type==0) ? 6:4); i++) {
w = (wf[p-1000][i&1])*(wt[p-1000][lp]);
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)[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];
#ifdef DEBUG_PUSCH
printf("nr_pusch_dmrs_rx dmrs config type %d port %d nb_pusch_rb %d\n", config_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)[i<<1], ((int16_t*)output)[(i<<1)+1]);
#endif
}
} else {
LOG_E(PHY,"extended cp not supported for PUSCH DMRS yet\n");
}
} else {
LOG_E(PHY,"Illegal p %d PUSCH DMRS port\n",p);
}
return(0);
}
int nr_pdsch_dmrs_rx(PHY_VARS_NR_UE *ue, int nr_pdsch_dmrs_rx(PHY_VARS_NR_UE *ue,
unsigned int Ns, unsigned int Ns,
......
openair1/PHY/NR_REFSIG/nr_gold.c
View file @ abfd0723
...@@ -101,3 +101,59 @@ void nr_init_pdsch_dmrs(PHY_VARS_gNB* gNB, uint32_t Nid) ...@@ -101,3 +101,59 @@ void nr_init_pdsch_dmrs(PHY_VARS_gNB* gNB, uint32_t Nid)
} }
} }
} }
void nr_gold_pusch(PHY_VARS_gNB* gNB, unsigned short lbar,unsigned short *n_idDMRS, unsigned short length_dmrs)
{
unsigned char ns,l;
unsigned int n,x1,x2,x2tmp0;
int nscid;
unsigned int nid;
/// to be updated from higher layer
//unsigned short lbar = 0;
for (nscid=0; nscid<2; nscid++) {
if (n_idDMRS)
nid = n_idDMRS[nscid];
else
nid = gNB->frame_parms.Nid_cell;
//printf("gold pdsch nid %d lbar %d\n",nid,lbar);
for (ns=0; ns<20; ns++) {
for (l=0; l<length_dmrs; l++) {
x2tmp0 = ((14*ns+(lbar+l)+1)*((nid<<1)+1))<<17;
x2 = (x2tmp0+(nid<<1)+nscid)%(1<<31); //cinit
//printf("ns %d gold pdsch x2 %d\n",ns,x2);
x1 = 1+ (1<<31);
x2=x2 ^ ((x2 ^ (x2>>1) ^ (x2>>2) ^ (x2>>3))<<31);
// skip first 50 double words (1600 bits)
for (n=1; n<50; n++) {
x1 = (x1>>1) ^ (x1>>4);
x1 = x1 ^ (x1<<31) ^ (x1<<28);
x2 = (x2>>1) ^ (x2>>2) ^ (x2>>3) ^ (x2>>4);
x2 = x2 ^ (x2<<31) ^ (x2<<30) ^ (x2<<29) ^ (x2<<28);
//printf("x1 : %x, x2 : %x\n",x1,x2);
}
for (n=0; n<52; n++) {
x1 = (x1>>1) ^ (x1>>4);
x1 = x1 ^ (x1<<31) ^ (x1<<28);
x2 = (x2>>1) ^ (x2>>2) ^ (x2>>3) ^ (x2>>4);
x2 = x2 ^ (x2<<31) ^ (x2<<30) ^ (x2<<29) ^ (x2<<28);
gNB->nr_gold_pusch[nscid][ns][l][n] = x1^x2;
// if ((ns==2)&&(l==0))
//printf("n=%d : c %x\n",n,x1^x2);
}
}
}
}
}
\ No newline at end of file
openair1/PHY/NR_REFSIG/nr_refsig.h
View file @ abfd0723
...@@ -39,4 +39,13 @@ void nr_init_pbch_dmrs(PHY_VARS_gNB* gNB); ...@@ -39,4 +39,13 @@ void nr_init_pbch_dmrs(PHY_VARS_gNB* gNB);
void nr_init_pdcch_dmrs(PHY_VARS_gNB* gNB, uint32_t Nid); void nr_init_pdcch_dmrs(PHY_VARS_gNB* gNB, uint32_t Nid);
void nr_init_pdsch_dmrs(PHY_VARS_gNB* gNB, uint32_t Nid); void nr_init_pdsch_dmrs(PHY_VARS_gNB* gNB, uint32_t Nid);
void nr_gold_pusch(PHY_VARS_gNB* gNB, unsigned short lbar,unsigned short *n_idDMRS, unsigned short length_dmrs);
int nr_pusch_dmrs_rx(PHY_VARS_gNB *gNB,
unsigned int Ns,
unsigned int *nr_gold_pusch,
int32_t *output,
unsigned short p,
unsigned char lp,
unsigned short nb_pusch_rb);
#endif #endif
openair1/PHY/NR_TRANSPORT/nr_transport_proto.h
View file @ abfd0723
...@@ -65,7 +65,9 @@ void nr_rx_pusch(PHY_VARS_gNB *gNB, ...@@ -65,7 +65,9 @@ void nr_rx_pusch(PHY_VARS_gNB *gNB,
*/ */
void nr_ulsch_extract_rbs_single(int **rxdataF, void nr_ulsch_extract_rbs_single(int **rxdataF,
int **ul_ch_estimates,
int **rxdataF_ext, int **rxdataF_ext,
int **ul_ch_estimates_ext,
uint32_t rxdataF_ext_offset, uint32_t rxdataF_ext_offset,
// unsigned int *rb_alloc, [hna] Resource Allocation Type 1 is assumed only for the moment // unsigned int *rb_alloc, [hna] Resource Allocation Type 1 is assumed only for the moment
unsigned char symbol, unsigned char symbol,
...@@ -73,6 +75,54 @@ void nr_ulsch_extract_rbs_single(int **rxdataF, ...@@ -73,6 +75,54 @@ void nr_ulsch_extract_rbs_single(int **rxdataF,
unsigned short nb_rb_pusch, unsigned short nb_rb_pusch,
NR_DL_FRAME_PARMS *frame_parms); NR_DL_FRAME_PARMS *frame_parms);
void nr_ulsch_scale_channel(int32_t **ul_ch_estimates_ext,
NR_DL_FRAME_PARMS *frame_parms,
NR_gNB_ULSCH_t **ulsch_gNB,
uint8_t symbol,
uint8_t start_symbol,
uint16_t nb_rb);
/** \brief This function computes the average channel level over all allocated RBs and antennas (TX/RX) in order to compute output shift for compensated signal
@param ul_ch_estimates_ext Channel estimates in allocated RBs
@param frame_parms Pointer to frame descriptor
@param avg Pointer to average signal strength
@param pilots_flag Flag to indicate pilots in symbol
@param nb_rb Number of allocated RBs
*/
void nr_ulsch_channel_level(int **ul_ch_estimates_ext,
NR_DL_FRAME_PARMS *frame_parms,
int32_t *avg,
uint8_t symbol,
uint32_t len,
unsigned short nb_rb);
/** \brief This function performs channel compensation (matched filtering) on the received RBs for this allocation. In addition, it computes the squared-magnitude of the channel with weightings for 16QAM/64QAM detection as well as dual-stream detection (cross-correlation)
@param rxdataF_ext Frequency-domain received signal in RBs to be demodulated
@param ul_ch_estimates_ext Frequency-domain channel estimates in RBs to be demodulated
@param ul_ch_mag First Channel magnitudes (16QAM/64QAM)
@param ul_ch_magb Second weighted Channel magnitudes (64QAM)
@param rxdataF_comp Compensated received waveform
@param frame_parms Pointer to frame descriptor
@param symbol Symbol on which to operate
@param Qm Modulation order of allocation
@param nb_rb Number of RBs in allocation
@param output_shift Rescaling for compensated output (should be energy-normalizing)
*/
void nr_ulsch_channel_compensation(int **rxdataF_ext,
int **ul_ch_estimates_ext,
int **ul_ch_mag,
int **ul_ch_magb,
int **rxdataF_comp,
int **rho,
NR_DL_FRAME_PARMS *frame_parms,
unsigned char symbol,
uint8_t pilots,
unsigned char mod_order,
unsigned short nb_rb,
unsigned char output_shift);
/*! /*!
\brief This function implements the idft transform precoding in PUSCH \brief This function implements the idft transform precoding in PUSCH
\param z Pointer to input in frequnecy domain, and it is also the output in time domain \param z Pointer to input in frequnecy domain, and it is also the output in time domain
...@@ -102,6 +152,7 @@ void nr_ulsch_qpsk_llr(int32_t *rxdataF_comp, ...@@ -102,6 +152,7 @@ void nr_ulsch_qpsk_llr(int32_t *rxdataF_comp,
void nr_ulsch_16qam_llr(int32_t *rxdataF_comp, void nr_ulsch_16qam_llr(int32_t *rxdataF_comp,
int32_t **ul_ch_mag, int32_t **ul_ch_mag,
int16_t *ulsch_llr, int16_t *ulsch_llr,
uint32_t nb_rb,
uint32_t nb_re, uint32_t nb_re,
uint8_t symbol); uint8_t symbol);
...@@ -118,6 +169,7 @@ void nr_ulsch_64qam_llr(int32_t *rxdataF_comp, ...@@ -118,6 +169,7 @@ void nr_ulsch_64qam_llr(int32_t *rxdataF_comp,
int32_t **ul_ch_mag, int32_t **ul_ch_mag,
int32_t **ul_ch_magb, int32_t **ul_ch_magb,
int16_t *ulsch_llr, int16_t *ulsch_llr,
uint32_t nb_rb,
uint32_t nb_re, uint32_t nb_re,
uint8_t symbol); uint8_t symbol);
...@@ -135,6 +187,7 @@ void nr_ulsch_compute_llr(int32_t *rxdataF_comp, ...@@ -135,6 +187,7 @@ void nr_ulsch_compute_llr(int32_t *rxdataF_comp,
int32_t **ul_ch_mag, int32_t **ul_ch_mag,
int32_t **ul_ch_magb, int32_t **ul_ch_magb,
int16_t *ulsch_llr, int16_t *ulsch_llr,
uint32_t nb_rb,
uint32_t nb_re, uint32_t nb_re,
uint8_t symbol, uint8_t symbol,
uint8_t mod_order); uint8_t mod_order);
\ No newline at end of file
openair1/PHY/NR_TRANSPORT/nr_ulsch_demodulation.c
View file @ abfd0723
...@@ -5,6 +5,13 @@ ...@@ -5,6 +5,13 @@
#include "PHY/NR_TRANSPORT/nr_sch_dmrs.h" #include "PHY/NR_TRANSPORT/nr_sch_dmrs.h"
#include "PHY/defs_nr_common.h" #include "PHY/defs_nr_common.h"
//#define DEBUG_CH_COMP
//#define DEBUG_RB_EXT
//#define DEBUG_CH_MAG
static short jitter[8] __attribute__ ((aligned(16))) = {1,0,0,1,0,1,1,0};
static short jitterc[8] __attribute__ ((aligned(16))) = {0,1,1,0,1,0,0,1};
void nr_idft(uint32_t *z, uint32_t Msc_PUSCH) void nr_idft(uint32_t *z, uint32_t Msc_PUSCH)
{ {
...@@ -216,7 +223,9 @@ void nr_idft(uint32_t *z, uint32_t Msc_PUSCH) ...@@ -216,7 +223,9 @@ void nr_idft(uint32_t *z, uint32_t Msc_PUSCH)
} }
void nr_ulsch_extract_rbs_single(int **rxdataF, void nr_ulsch_extract_rbs_single(int **rxdataF,
int **ul_ch_estimates,
int **rxdataF_ext, int **rxdataF_ext,
int **ul_ch_estimates_ext,
uint32_t rxdataF_ext_offset, uint32_t rxdataF_ext_offset,
// unsigned int *rb_alloc, [hna] Resource Allocation Type 1 is assumed only for the moment // unsigned int *rb_alloc, [hna] Resource Allocation Type 1 is assumed only for the moment
unsigned char symbol, unsigned char symbol,
...@@ -227,12 +236,22 @@ void nr_ulsch_extract_rbs_single(int **rxdataF, ...@@ -227,12 +236,22 @@ void nr_ulsch_extract_rbs_single(int **rxdataF,
unsigned short start_re, re, nb_re_pusch; unsigned short start_re, re, nb_re_pusch;
unsigned char aarx, is_dmrs_symbol = 0; unsigned char aarx, is_dmrs_symbol = 0;
uint32_t rxF_ext_index = 0; uint32_t rxF_ext_index = 0;
uint32_t ul_ch0_ext_index = 0;
uint32_t ul_ch0_index = 0;
int16_t *rxF,*rxF_ext; int16_t *rxF,*rxF_ext;
int *ul_ch0,*ul_ch0_ext;
#ifdef DEBUG_RB_EXT
printf("--------------------symbol = %d-----------------------\n", symbol);
printf("--------------------ch_ext_index = %d-----------------------\n", symbol*NR_NB_SC_PER_RB * nb_rb_pusch);
#endif
is_dmrs_symbol = (symbol == 2) ? 1 : 0; //to be updated from config is_dmrs_symbol = (symbol == 2) ? 1 : 0; //to be updated from config
start_re = frame_parms->first_carrier_offset + (start_rb * NR_NB_SC_PER_RB); start_re = (frame_parms->first_carrier_offset + (start_rb * NR_NB_SC_PER_RB))%frame_parms->ofdm_symbol_size;
nb_re_pusch = NR_NB_SC_PER_RB * nb_rb_pusch; nb_re_pusch = NR_NB_SC_PER_RB * nb_rb_pusch;
...@@ -241,19 +260,712 @@ void nr_ulsch_extract_rbs_single(int **rxdataF, ...@@ -241,19 +260,712 @@ void nr_ulsch_extract_rbs_single(int **rxdataF,
rxF = (int16_t *)&rxdataF[aarx][symbol * frame_parms->ofdm_symbol_size]; rxF = (int16_t *)&rxdataF[aarx][symbol * frame_parms->ofdm_symbol_size];
rxF_ext = (int16_t *)&rxdataF_ext[aarx][symbol * nb_re_pusch]; // [hna] rxdataF_ext isn't contiguous in order to solve an alignment problem ib llr computation in case of mod_order = 4, 6 rxF_ext = (int16_t *)&rxdataF_ext[aarx][symbol * nb_re_pusch]; // [hna] rxdataF_ext isn't contiguous in order to solve an alignment problem ib llr computation in case of mod_order = 4, 6
ul_ch0 = &ul_ch_estimates[aarx][(2*(frame_parms->ofdm_symbol_size))]; // DMRS REs are only in symbol 2 (to be updated from config)
ul_ch0_ext = &ul_ch_estimates_ext[aarx][symbol*nb_re_pusch];
for (re = 0; re < nb_re_pusch; re++) { for (re = 0; re < nb_re_pusch; re++) {
if ( (is_dmrs_symbol && ((re&1) != 0)) || (is_dmrs_symbol == 0) ) { // [hna] (re&1) != frame_parms->nushift) assuming only dmrs type 1 and mapping type A if ( (is_dmrs_symbol && ((re&1) != 0)) || (is_dmrs_symbol == 0) ) { // [hna] (re&1) != frame_parms->nushift) assuming only dmrs type 1 and mapping type A
// frame_parms->nushift should be initialized with 0 // frame_parms->nushift should be initialized with 0
rxF_ext[rxF_ext_index] = (rxF[ ((start_re + re)*2) % (frame_parms->ofdm_symbol_size*2)]); rxF_ext[rxF_ext_index] = (rxF[ ((start_re + re)*2) % (frame_parms->ofdm_symbol_size*2)]);
rxF_ext[rxF_ext_index + 1] = (rxF[(((start_re + re)*2) + 1) % (frame_parms->ofdm_symbol_size*2)]); rxF_ext[rxF_ext_index + 1] = (rxF[(((start_re + re)*2) + 1) % (frame_parms->ofdm_symbol_size*2)]);
ul_ch0_ext[ul_ch0_ext_index] = ul_ch0[ul_ch0_index];
#ifdef DEBUG_RB_EXT
printf("rxF_ext[%d] = %d\n", rxF_ext_index, rxF_ext[rxF_ext_index]);
printf("rxF_ext[%d] = %d\n", rxF_ext_index+1, rxF_ext[rxF_ext_index+1]);
printf("ul_ch0_ext[%d] = %d\n", 2*ul_ch0_ext_index, ((int16_t *)ul_ch0_ext)[2*ul_ch0_ext_index]);
printf("ul_ch0_ext[%d] = %d\n", 2*ul_ch0_ext_index + 1, ((int16_t *)ul_ch0_ext)[2*ul_ch0_ext_index + 1]);
#endif
rxF_ext_index = rxF_ext_index + 2; rxF_ext_index = rxF_ext_index + 2;
ul_ch0_ext_index++;
} }
ul_ch0_index++;
}
}
}
void nr_ulsch_scale_channel(int **ul_ch_estimates_ext,
NR_DL_FRAME_PARMS *frame_parms,
NR_gNB_ULSCH_t **ulsch_gNB,
uint8_t symbol,
uint8_t pilots,
unsigned short nb_rb)
{
#if defined(__x86_64__)||defined(__i386__)
short rb, ch_amp;
unsigned char aatx,aarx;
__m128i *ul_ch128, ch_amp128;
// Determine scaling amplitude based the symbol
ch_amp = 1024*8; //((pilots) ? (ulsch_gNB[0]->sqrt_rho_b) : (ulsch_gNB[0]->sqrt_rho_a));
LOG_D(PHY,"Scaling PUSCH Chest in OFDM symbol %d by %d, pilots %d nb_rb %d NCP %d symbol %d\n", symbol, ch_amp, pilots, nb_rb, frame_parms->Ncp, symbol);
// printf("Scaling PUSCH Chest in OFDM symbol %d by %d\n",symbol_mod,ch_amp);
ch_amp128 = _mm_set1_epi16(ch_amp); // Q3.13
for (aatx=0; aatx < frame_parms->nb_antenna_ports_eNB; aatx++) {
for (aarx=0; aarx < frame_parms->nb_antennas_rx; aarx++) {
ul_ch128 = (__m128i *)&ul_ch_estimates_ext[aarx][symbol*nb_rb*NR_NB_SC_PER_RB];
if (pilots==1){
nb_rb = nb_rb>>1;
}
for (rb=0;rb<nb_rb;rb++) {
ul_ch128[0] = _mm_mulhi_epi16(ul_ch128[0], ch_amp128);
ul_ch128[0] = _mm_slli_epi16(ul_ch128[0], 3);
ul_ch128[1] = _mm_mulhi_epi16(ul_ch128[1], ch_amp128);
ul_ch128[1] = _mm_slli_epi16(ul_ch128[1], 3);
if (pilots) {
ul_ch128+=2;
} else {
ul_ch128[2] = _mm_mulhi_epi16(ul_ch128[2], ch_amp128);
ul_ch128[2] = _mm_slli_epi16(ul_ch128[2], 3);
ul_ch128+=3;
}
}
} }
} }
#endif
}
//compute average channel_level on each (TX,RX) antenna pair
void nr_ulsch_channel_level(int **ul_ch_estimates_ext,
NR_DL_FRAME_PARMS *frame_parms,
int32_t *avg,
uint8_t symbol,
uint32_t len,
unsigned short nb_rb)
{
#if defined(__x86_64__)||defined(__i386__)
short rb;
unsigned char aatx, aarx, nre = 12;
__m128i *ul_ch128, avg128U;
//nb_rb*nre = y * 2^x
int16_t x = factor2(len);
int16_t y = (len)>>x;
//printf("nb_rb*nre = %d = %d * 2^(%d)\n",nb_rb*nre,y,x);
for (aatx = 0; aatx < frame_parms->nb_antennas_tx; aatx++)
for (aarx = 0; aarx < frame_parms->nb_antennas_rx; aarx++) {
//clear average level
avg128U = _mm_setzero_si128();
ul_ch128=(__m128i *)&ul_ch_estimates_ext[(aatx<<1)+aarx][symbol*nb_rb*12];
for (rb = 0; rb < nb_rb; rb++) {
avg128U = _mm_add_epi32(avg128U, _mm_srai_epi32(_mm_madd_epi16(ul_ch128[0], ul_ch128[0]), x));
avg128U = _mm_add_epi32(avg128U, _mm_srai_epi32(_mm_madd_epi16(ul_ch128[1], ul_ch128[1]), x));
avg128U = _mm_add_epi32(avg128U, _mm_srai_epi32(_mm_madd_epi16(ul_ch128[2], ul_ch128[2]), x));
ul_ch128+=3;
}
avg[(aatx<<1)+aarx] = (((int32_t*)&avg128U)[0] +
((int32_t*)&avg128U)[1] +
((int32_t*)&avg128U)[2] +
((int32_t*)&avg128U)[3] ) / y;
}
_mm_empty();
_m_empty();
#elif defined(__arm__)
short rb;
unsigned char aatx, aarx, nre = 12, symbol_mod;
int32x4_t avg128U;
int16x4_t *ul_ch128;
symbol_mod = (symbol>=(7-frame_parms->Ncp)) ? symbol-(7-frame_parms->Ncp) : symbol;
for (aatx=0; aatx<frame_parms->nb_antenna_ports_eNB; aatx++)
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) {
//clear average level
avg128U = vdupq_n_s32(0);
// 5 is always a symbol with no pilots for both normal and extended prefix
ul_ch128 = (int16x4_t *)&ul_ch_estimates_ext[(aatx<<1)+aarx][symbol*frame_parms->N_RB_UL*12];
for (rb = 0; rb < nb_rb; rb++) {
// printf("rb %d : ",rb);
// print_shorts("ch",&ul_ch128[0]);
avg128U = vqaddq_s32(avg128U, vmull_s16(ul_ch128[0], ul_ch128[0]));
avg128U = vqaddq_s32(avg128U, vmull_s16(ul_ch128[1], ul_ch128[1]));
avg128U = vqaddq_s32(avg128U, vmull_s16(ul_ch128[2], ul_ch128[2]));
avg128U = vqaddq_s32(avg128U, vmull_s16(ul_ch128[3], ul_ch128[3]));
if (((symbol_mod == 0) || (symbol_mod == (frame_parms->Ncp-1)))&&(frame_parms->nb_antenna_ports_eNB!=1)) {
ul_ch128+=4;
} else {
avg128U = vqaddq_s32(avg128U, vmull_s16(ul_ch128[4], ul_ch128[4]));
avg128U = vqaddq_s32(avg128U, vmull_s16(ul_ch128[5], ul_ch128[5]));
ul_ch128+=6;
}
/*
if (rb==0) {
print_shorts("ul_ch128",&ul_ch128[0]);
print_shorts("ul_ch128",&ul_ch128[1]);
print_shorts("ul_ch128",&ul_ch128[2]);
}
*/
}
if (symbol==2) //assume start symbol 2
nre=6;
else
nre=12;
avg[(aatx<<1)+aarx] = (((int32_t*)&avg128U)[0] +
((int32_t*)&avg128U)[1] +
((int32_t*)&avg128U)[2] +
((int32_t*)&avg128U)[3] ) / (nb_rb*nre);
}
#endif
} }
void nr_ulsch_channel_compensation(int **rxdataF_ext,
int **ul_ch_estimates_ext,
int **ul_ch_mag,
int **ul_ch_magb,
int **rxdataF_comp,
int **rho,
NR_DL_FRAME_PARMS *frame_parms,
unsigned char symbol,
uint8_t pilots,
unsigned char mod_order,
unsigned short nb_rb,
unsigned char output_shift)
{
#ifdef DEBUG_CH_COMP
int16_t *rxF, *ul_ch;
int prnt_idx;
rxF = (int16_t *)&rxdataF_ext[0][(symbol*nb_rb*12)];
ul_ch = (int16_t *)&ul_ch_estimates_ext[0][symbol*nb_rb*12];
printf("--------------------symbol = %d, mod_order = %d, output_shift = %d-----------------------\n", symbol, mod_order, output_shift);
printf("----------------Before compansation------------------\n");
for (prnt_idx=0;prnt_idx<12*nb_rb*2;prnt_idx++){
printf("rxF[%d] = %d\n", prnt_idx, rxF[prnt_idx]);
printf("ul_ch[%d] = %d\n", prnt_idx, ul_ch[prnt_idx]);
}
#endif
#ifdef DEBUG_CH_MAG
int16_t *ch_mag;
int print_idx;
ch_mag = (int16_t *)&ul_ch_mag[0][(symbol*nb_rb*12)];
printf("--------------------symbol = %d, mod_order = %d-----------------------\n", symbol, mod_order);
printf("----------------Before computation------------------\n");
for (print_idx=0;print_idx<50;print_idx++){
printf("ch_mag[%d] = %d\n", print_idx, ch_mag[print_idx]);
}
#endif
#if defined(__i386) || defined(__x86_64)
unsigned short rb;
unsigned char aatx,aarx;
__m128i *ul_ch128,*ul_ch128_2,*ul_ch_mag128,*ul_ch_mag128b,*rxdataF128,*rxdataF_comp128,*rho128;
__m128i mmtmpD0,mmtmpD1,mmtmpD2,mmtmpD3,QAM_amp128,QAM_amp128b;
QAM_amp128b = _mm_setzero_si128();
for (aatx=0; aatx<frame_parms->nb_antennas_tx; aatx++) {
if (mod_order == 4) {
QAM_amp128 = _mm_set1_epi16(QAM16_n1); // 2/sqrt(10)
QAM_amp128b = _mm_setzero_si128();
} else if (mod_order == 6) {
QAM_amp128 = _mm_set1_epi16(QAM64_n1); //
QAM_amp128b = _mm_set1_epi16(QAM64_n2);
}
// printf("comp: rxdataF_comp %p, symbol %d\n",rxdataF_comp[0],symbol);
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) {
ul_ch128 = (__m128i *)&ul_ch_estimates_ext[(aatx<<1)+aarx][symbol*nb_rb*12];
ul_ch_mag128 = (__m128i *)&ul_ch_mag[(aatx<<1)+aarx][symbol*nb_rb*12];
ul_ch_mag128b = (__m128i *)&ul_ch_magb[(aatx<<1)+aarx][symbol*nb_rb*12];
rxdataF128 = (__m128i *)&rxdataF_ext[aarx][symbol*nb_rb*12];
rxdataF_comp128 = (__m128i *)&rxdataF_comp[(aatx<<1)+aarx][symbol*nb_rb*12];
for (rb=0; rb<nb_rb; rb++) {
if (mod_order>2) {
// get channel amplitude if not QPSK
//print_shorts("ch:",(int16_t*)&ul_ch128[0]);
mmtmpD0 = _mm_madd_epi16(ul_ch128[0],ul_ch128[0]);
mmtmpD0 = _mm_srai_epi32(mmtmpD0,output_shift);
mmtmpD1 = _mm_madd_epi16(ul_ch128[1],ul_ch128[1]);
mmtmpD1 = _mm_srai_epi32(mmtmpD1,output_shift);
mmtmpD0 = _mm_packs_epi32(mmtmpD0,mmtmpD1);
// store channel magnitude here in a new field of ulsch
ul_ch_mag128[0] = _mm_unpacklo_epi16(mmtmpD0,mmtmpD0);
ul_ch_mag128b[0] = ul_ch_mag128[0];
ul_ch_mag128[0] = _mm_mulhi_epi16(ul_ch_mag128[0],QAM_amp128);
ul_ch_mag128[0] = _mm_slli_epi16(ul_ch_mag128[0],1);
// print_ints("ch: = ",(int32_t*)&mmtmpD0);
// print_shorts("QAM_amp:",(int16_t*)&QAM_amp128);
// print_shorts("mag:",(int16_t*)&ul_ch_mag128[0]);
ul_ch_mag128[1] = _mm_unpackhi_epi16(mmtmpD0,mmtmpD0);
ul_ch_mag128b[1] = ul_ch_mag128[1];
ul_ch_mag128[1] = _mm_mulhi_epi16(ul_ch_mag128[1],QAM_amp128);
ul_ch_mag128[1] = _mm_slli_epi16(ul_ch_mag128[1],1);
if (pilots==0) {
mmtmpD0 = _mm_madd_epi16(ul_ch128[2],ul_ch128[2]);
mmtmpD0 = _mm_srai_epi32(mmtmpD0,output_shift);
mmtmpD1 = _mm_packs_epi32(mmtmpD0,mmtmpD0);
ul_ch_mag128[2] = _mm_unpacklo_epi16(mmtmpD1,mmtmpD1);
ul_ch_mag128b[2] = ul_ch_mag128[2];
ul_ch_mag128[2] = _mm_mulhi_epi16(ul_ch_mag128[2],QAM_amp128);
ul_ch_mag128[2] = _mm_slli_epi16(ul_ch_mag128[2],1);
}
ul_ch_mag128b[0] = _mm_mulhi_epi16(ul_ch_mag128b[0],QAM_amp128b);
ul_ch_mag128b[0] = _mm_slli_epi16(ul_ch_mag128b[0],1);
ul_ch_mag128b[1] = _mm_mulhi_epi16(ul_ch_mag128b[1],QAM_amp128b);
ul_ch_mag128b[1] = _mm_slli_epi16(ul_ch_mag128b[1],1);
if (pilots==0) {
ul_ch_mag128b[2] = _mm_mulhi_epi16(ul_ch_mag128b[2],QAM_amp128b);
ul_ch_mag128b[2] = _mm_slli_epi16(ul_ch_mag128b[2],1);
}
}
// multiply by conjugated channel
mmtmpD0 = _mm_madd_epi16(ul_ch128[0],rxdataF128[0]);
// print_ints("re",&mmtmpD0);
// mmtmpD0 contains real part of 4 consecutive outputs (32-bit)
mmtmpD1 = _mm_shufflelo_epi16(ul_ch128[0],_MM_SHUFFLE(2,3,0,1));
mmtmpD1 = _mm_shufflehi_epi16(mmtmpD1,_MM_SHUFFLE(2,3,0,1));
mmtmpD1 = _mm_sign_epi16(mmtmpD1,*(__m128i*)&conjugate[0]);
// print_ints("im",&mmtmpD1);
mmtmpD1 = _mm_madd_epi16(mmtmpD1,rxdataF128[0]);
// mmtmpD1 contains imag part of 4 consecutive outputs (32-bit)
mmtmpD0 = _mm_srai_epi32(mmtmpD0,output_shift);
// print_ints("re(shift)",&mmtmpD0);
mmtmpD1 = _mm_srai_epi32(mmtmpD1,output_shift);
// print_ints("im(shift)",&mmtmpD1);
mmtmpD2 = _mm_unpacklo_epi32(mmtmpD0,mmtmpD1);
mmtmpD3 = _mm_unpackhi_epi32(mmtmpD0,mmtmpD1);
// print_ints("c0",&mmtmpD2);
// print_ints("c1",&mmtmpD3);
rxdataF_comp128[0] = _mm_packs_epi32(mmtmpD2,mmtmpD3);
// print_shorts("rx:",rxdataF128);
// print_shorts("ch:",ul_ch128);
// print_shorts("pack:",rxdataF_comp128);
// multiply by conjugated channel
mmtmpD0 = _mm_madd_epi16(ul_ch128[1],rxdataF128[1]);
// mmtmpD0 contains real part of 4 consecutive outputs (32-bit)
mmtmpD1 = _mm_shufflelo_epi16(ul_ch128[1],_MM_SHUFFLE(2,3,0,1));
mmtmpD1 = _mm_shufflehi_epi16(mmtmpD1,_MM_SHUFFLE(2,3,0,1));
mmtmpD1 = _mm_sign_epi16(mmtmpD1,*(__m128i*)conjugate);
mmtmpD1 = _mm_madd_epi16(mmtmpD1,rxdataF128[1]);
// mmtmpD1 contains imag part of 4 consecutive outputs (32-bit)
mmtmpD0 = _mm_srai_epi32(mmtmpD0,output_shift);
mmtmpD1 = _mm_srai_epi32(mmtmpD1,output_shift);
mmtmpD2 = _mm_unpacklo_epi32(mmtmpD0,mmtmpD1);
mmtmpD3 = _mm_unpackhi_epi32(mmtmpD0,mmtmpD1);
rxdataF_comp128[1] = _mm_packs_epi32(mmtmpD2,mmtmpD3);
// print_shorts("rx:",rxdataF128+1);
// print_shorts("ch:",ul_ch128+1);
// print_shorts("pack:",rxdataF_comp128+1);
if (pilots==0) {
// multiply by conjugated channel
mmtmpD0 = _mm_madd_epi16(ul_ch128[2],rxdataF128[2]);
// mmtmpD0 contains real part of 4 consecutive outputs (32-bit)
mmtmpD1 = _mm_shufflelo_epi16(ul_ch128[2],_MM_SHUFFLE(2,3,0,1));
mmtmpD1 = _mm_shufflehi_epi16(mmtmpD1,_MM_SHUFFLE(2,3,0,1));
mmtmpD1 = _mm_sign_epi16(mmtmpD1,*(__m128i*)conjugate);
mmtmpD1 = _mm_madd_epi16(mmtmpD1,rxdataF128[2]);
// mmtmpD1 contains imag part of 4 consecutive outputs (32-bit)
mmtmpD0 = _mm_srai_epi32(mmtmpD0,output_shift);
mmtmpD1 = _mm_srai_epi32(mmtmpD1,output_shift);
mmtmpD2 = _mm_unpacklo_epi32(mmtmpD0,mmtmpD1);
mmtmpD3 = _mm_unpackhi_epi32(mmtmpD0,mmtmpD1);
rxdataF_comp128[2] = _mm_packs_epi32(mmtmpD2,mmtmpD3);
// print_shorts("rx:",rxdataF128+2);
// print_shorts("ch:",ul_ch128+2);
// print_shorts("pack:",rxdataF_comp128+2);
ul_ch128+=3;
ul_ch_mag128+=3;
ul_ch_mag128b+=3;
rxdataF128+=3;
rxdataF_comp128+=3;
} else { // we have a smaller PUSCH in symbols with pilots so skip last group of 4 REs and increment less
ul_ch128+=2;
ul_ch_mag128+=2;
ul_ch_mag128b+=2;
rxdataF128+=2;
rxdataF_comp128+=2;
}
}
}
}
if (rho) {
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) {
rho128 = (__m128i *)&rho[aarx][symbol*frame_parms->N_RB_UL*12];
ul_ch128 = (__m128i *)&ul_ch_estimates_ext[aarx][symbol*frame_parms->N_RB_UL*12];
ul_ch128_2 = (__m128i *)&ul_ch_estimates_ext[2+aarx][symbol*frame_parms->N_RB_UL*12];
for (rb=0; rb<nb_rb; rb++) {
// multiply by conjugated channel
mmtmpD0 = _mm_madd_epi16(ul_ch128[0],ul_ch128_2[0]);
// print_ints("re",&mmtmpD0);
// mmtmpD0 contains real part of 4 consecutive outputs (32-bit)
mmtmpD1 = _mm_shufflelo_epi16(ul_ch128[0],_MM_SHUFFLE(2,3,0,1));
mmtmpD1 = _mm_shufflehi_epi16(mmtmpD1,_MM_SHUFFLE(2,3,0,1));
mmtmpD1 = _mm_sign_epi16(mmtmpD1,*(__m128i*)&conjugate[0]);
// print_ints("im",&mmtmpD1);
mmtmpD1 = _mm_madd_epi16(mmtmpD1,ul_ch128_2[0]);
// mmtmpD1 contains imag part of 4 consecutive outputs (32-bit)
mmtmpD0 = _mm_srai_epi32(mmtmpD0,output_shift);
// print_ints("re(shift)",&mmtmpD0);
mmtmpD1 = _mm_srai_epi32(mmtmpD1,output_shift);
// print_ints("im(shift)",&mmtmpD1);
mmtmpD2 = _mm_unpacklo_epi32(mmtmpD0,mmtmpD1);
mmtmpD3 = _mm_unpackhi_epi32(mmtmpD0,mmtmpD1);
// print_ints("c0",&mmtmpD2);
// print_ints("c1",&mmtmpD3);
rho128[0] = _mm_packs_epi32(mmtmpD2,mmtmpD3);
//print_shorts("rx:",ul_ch128_2);
//print_shorts("ch:",ul_ch128);
//print_shorts("pack:",rho128);
// multiply by conjugated channel
mmtmpD0 = _mm_madd_epi16(ul_ch128[1],ul_ch128_2[1]);
// mmtmpD0 contains real part of 4 consecutive outputs (32-bit)
mmtmpD1 = _mm_shufflelo_epi16(ul_ch128[1],_MM_SHUFFLE(2,3,0,1));
mmtmpD1 = _mm_shufflehi_epi16(mmtmpD1,_MM_SHUFFLE(2,3,0,1));
mmtmpD1 = _mm_sign_epi16(mmtmpD1,*(__m128i*)conjugate);
mmtmpD1 = _mm_madd_epi16(mmtmpD1,ul_ch128_2[1]);
// mmtmpD1 contains imag part of 4 consecutive outputs (32-bit)
mmtmpD0 = _mm_srai_epi32(mmtmpD0,output_shift);
mmtmpD1 = _mm_srai_epi32(mmtmpD1,output_shift);
mmtmpD2 = _mm_unpacklo_epi32(mmtmpD0,mmtmpD1);
mmtmpD3 = _mm_unpackhi_epi32(mmtmpD0,mmtmpD1);
rho128[1] =_mm_packs_epi32(mmtmpD2,mmtmpD3);
//print_shorts("rx:",ul_ch128_2+1);
//print_shorts("ch:",ul_ch128+1);
//print_shorts("pack:",rho128+1);
// multiply by conjugated channel
mmtmpD0 = _mm_madd_epi16(ul_ch128[2],ul_ch128_2[2]);
// mmtmpD0 contains real part of 4 consecutive outputs (32-bit)
mmtmpD1 = _mm_shufflelo_epi16(ul_ch128[2],_MM_SHUFFLE(2,3,0,1));
mmtmpD1 = _mm_shufflehi_epi16(mmtmpD1,_MM_SHUFFLE(2,3,0,1));
mmtmpD1 = _mm_sign_epi16(mmtmpD1,*(__m128i*)conjugate);
mmtmpD1 = _mm_madd_epi16(mmtmpD1,ul_ch128_2[2]);
// mmtmpD1 contains imag part of 4 consecutive outputs (32-bit)
mmtmpD0 = _mm_srai_epi32(mmtmpD0,output_shift);
mmtmpD1 = _mm_srai_epi32(mmtmpD1,output_shift);
mmtmpD2 = _mm_unpacklo_epi32(mmtmpD0,mmtmpD1);
mmtmpD3 = _mm_unpackhi_epi32(mmtmpD0,mmtmpD1);
rho128[2] = _mm_packs_epi32(mmtmpD2,mmtmpD3);
//print_shorts("rx:",ul_ch128_2+2);
//print_shorts("ch:",ul_ch128+2);
//print_shorts("pack:",rho128+2);
ul_ch128+=3;
ul_ch128_2+=3;
rho128+=3;
}
}
}
_mm_empty();
_m_empty();
#elif defined(__arm__)
unsigned short rb;
unsigned char aatx,aarx,symbol_mod,pilots=0;
int16x4_t *ul_ch128,*ul_ch128_2,*rxdataF128;
int32x4_t mmtmpD0,mmtmpD1,mmtmpD0b,mmtmpD1b;
int16x8_t *ul_ch_mag128,*ul_ch_mag128b,mmtmpD2,mmtmpD3,mmtmpD4;
int16x8_t QAM_amp128,QAM_amp128b;
int16x4x2_t *rxdataF_comp128,*rho128;
int16_t conj[4]__attribute__((aligned(16))) = {1,-1,1,-1};
int32x4_t output_shift128 = vmovq_n_s32(-(int32_t)output_shift);
symbol_mod = (symbol>=(7-frame_parms->Ncp)) ? symbol-(7-frame_parms->Ncp) : symbol;
if ((symbol_mod == 0) || (symbol_mod == (4-frame_parms->Ncp))) {
if (frame_parms->nb_antenna_ports_eNB==1) { // 10 out of 12 so don't reduce size
nb_rb=1+(5*nb_rb/6);
}
else {
pilots=1;
}
}
for (aatx=0; aatx<frame_parms->nb_antenna_ports_eNB; aatx++) {
if (mod_order == 4) {
QAM_amp128 = vmovq_n_s16(QAM16_n1); // 2/sqrt(10)
QAM_amp128b = vmovq_n_s16(0);
} else if (mod_order == 6) {
QAM_amp128 = vmovq_n_s16(QAM64_n1); //
QAM_amp128b = vmovq_n_s16(QAM64_n2);
}
// printf("comp: rxdataF_comp %p, symbol %d\n",rxdataF_comp[0],symbol);
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) {
ul_ch128 = (int16x4_t*)&ul_ch_estimates_ext[(aatx<<1)+aarx][symbol*frame_parms->N_RB_UL*12];
ul_ch_mag128 = (int16x8_t*)&ul_ch_mag[(aatx<<1)+aarx][symbol*frame_parms->N_RB_UL*12];
ul_ch_mag128b = (int16x8_t*)&ul_ch_magb[(aatx<<1)+aarx][symbol*frame_parms->N_RB_UL*12];
rxdataF128 = (int16x4_t*)&rxdataF_ext[aarx][symbol*frame_parms->N_RB_UL*12];
rxdataF_comp128 = (int16x4x2_t*)&rxdataF_comp[(aatx<<1)+aarx][symbol*frame_parms->N_RB_UL*12];
for (rb=0; rb<nb_rb; rb++) {
if (mod_order>2) {
// get channel amplitude if not QPSK
mmtmpD0 = vmull_s16(ul_ch128[0], ul_ch128[0]);
// mmtmpD0 = [ch0*ch0,ch1*ch1,ch2*ch2,ch3*ch3];
mmtmpD0 = vqshlq_s32(vqaddq_s32(mmtmpD0,vrev64q_s32(mmtmpD0)),output_shift128);
// mmtmpD0 = [ch0*ch0 + ch1*ch1,ch0*ch0 + ch1*ch1,ch2*ch2 + ch3*ch3,ch2*ch2 + ch3*ch3]>>output_shift128 on 32-bits
mmtmpD1 = vmull_s16(ul_ch128[1], ul_ch128[1]);
mmtmpD1 = vqshlq_s32(vqaddq_s32(mmtmpD1,vrev64q_s32(mmtmpD1)),output_shift128);
mmtmpD2 = vcombine_s16(vmovn_s32(mmtmpD0),vmovn_s32(mmtmpD1));
// mmtmpD2 = [ch0*ch0 + ch1*ch1,ch0*ch0 + ch1*ch1,ch2*ch2 + ch3*ch3,ch2*ch2 + ch3*ch3,ch4*ch4 + ch5*ch5,ch4*ch4 + ch5*ch5,ch6*ch6 + ch7*ch7,ch6*ch6 + ch7*ch7]>>output_shift128 on 16-bits
mmtmpD0 = vmull_s16(ul_ch128[2], ul_ch128[2]);
mmtmpD0 = vqshlq_s32(vqaddq_s32(mmtmpD0,vrev64q_s32(mmtmpD0)),output_shift128);
mmtmpD1 = vmull_s16(ul_ch128[3], ul_ch128[3]);
mmtmpD1 = vqshlq_s32(vqaddq_s32(mmtmpD1,vrev64q_s32(mmtmpD1)),output_shift128);
mmtmpD3 = vcombine_s16(vmovn_s32(mmtmpD0),vmovn_s32(mmtmpD1));
if (pilots==0) {
mmtmpD0 = vmull_s16(ul_ch128[4], ul_ch128[4]);
mmtmpD0 = vqshlq_s32(vqaddq_s32(mmtmpD0,vrev64q_s32(mmtmpD0)),output_shift128);
mmtmpD1 = vmull_s16(ul_ch128[5], ul_ch128[5]);
mmtmpD1 = vqshlq_s32(vqaddq_s32(mmtmpD1,vrev64q_s32(mmtmpD1)),output_shift128);
mmtmpD4 = vcombine_s16(vmovn_s32(mmtmpD0),vmovn_s32(mmtmpD1));
}
ul_ch_mag128b[0] = vqdmulhq_s16(mmtmpD2,QAM_amp128b);
ul_ch_mag128b[1] = vqdmulhq_s16(mmtmpD3,QAM_amp128b);
ul_ch_mag128[0] = vqdmulhq_s16(mmtmpD2,QAM_amp128);
ul_ch_mag128[1] = vqdmulhq_s16(mmtmpD3,QAM_amp128);
if (pilots==0) {
ul_ch_mag128b[2] = vqdmulhq_s16(mmtmpD4,QAM_amp128b);
ul_ch_mag128[2] = vqdmulhq_s16(mmtmpD4,QAM_amp128);
}
}
mmtmpD0 = vmull_s16(ul_ch128[0], rxdataF128[0]);
//mmtmpD0 = [Re(ch[0])Re(rx[0]) Im(ch[0])Im(ch[0]) Re(ch[1])Re(rx[1]) Im(ch[1])Im(ch[1])]
mmtmpD1 = vmull_s16(ul_ch128[1], rxdataF128[1]);
//mmtmpD1 = [Re(ch[2])Re(rx[2]) Im(ch[2])Im(ch[2]) Re(ch[3])Re(rx[3]) Im(ch[3])Im(ch[3])]
mmtmpD0 = vcombine_s32(vpadd_s32(vget_low_s32(mmtmpD0),vget_high_s32(mmtmpD0)),
vpadd_s32(vget_low_s32(mmtmpD1),vget_high_s32(mmtmpD1)));
//mmtmpD0 = [Re(ch[0])Re(rx[0])+Im(ch[0])Im(ch[0]) Re(ch[1])Re(rx[1])+Im(ch[1])Im(ch[1]) Re(ch[2])Re(rx[2])+Im(ch[2])Im(ch[2]) Re(ch[3])Re(rx[3])+Im(ch[3])Im(ch[3])]
mmtmpD0b = vmull_s16(vrev32_s16(vmul_s16(ul_ch128[0],*(int16x4_t*)conj)), rxdataF128[0]);
//mmtmpD0 = [-Im(ch[0])Re(rx[0]) Re(ch[0])Im(rx[0]) -Im(ch[1])Re(rx[1]) Re(ch[1])Im(rx[1])]
mmtmpD1b = vmull_s16(vrev32_s16(vmul_s16(ul_ch128[1],*(int16x4_t*)conj)), rxdataF128[1]);
//mmtmpD0 = [-Im(ch[2])Re(rx[2]) Re(ch[2])Im(rx[2]) -Im(ch[3])Re(rx[3]) Re(ch[3])Im(rx[3])]
mmtmpD1 = vcombine_s32(vpadd_s32(vget_low_s32(mmtmpD0b),vget_high_s32(mmtmpD0b)),
vpadd_s32(vget_low_s32(mmtmpD1b),vget_high_s32(mmtmpD1b)));
//mmtmpD1 = [-Im(ch[0])Re(rx[0])+Re(ch[0])Im(rx[0]) -Im(ch[1])Re(rx[1])+Re(ch[1])Im(rx[1]) -Im(ch[2])Re(rx[2])+Re(ch[2])Im(rx[2]) -Im(ch[3])Re(rx[3])+Re(ch[3])Im(rx[3])]
mmtmpD0 = vqshlq_s32(mmtmpD0,output_shift128);
mmtmpD1 = vqshlq_s32(mmtmpD1,output_shift128);
rxdataF_comp128[0] = vzip_s16(vmovn_s32(mmtmpD0),vmovn_s32(mmtmpD1));
mmtmpD0 = vmull_s16(ul_ch128[2], rxdataF128[2]);
mmtmpD1 = vmull_s16(ul_ch128[3], rxdataF128[3]);
mmtmpD0 = vcombine_s32(vpadd_s32(vget_low_s32(mmtmpD0),vget_high_s32(mmtmpD0)),
vpadd_s32(vget_low_s32(mmtmpD1),vget_high_s32(mmtmpD1)));
mmtmpD0b = vmull_s16(vrev32_s16(vmul_s16(ul_ch128[2],*(int16x4_t*)conj)), rxdataF128[2]);
mmtmpD1b = vmull_s16(vrev32_s16(vmul_s16(ul_ch128[3],*(int16x4_t*)conj)), rxdataF128[3]);
mmtmpD1 = vcombine_s32(vpadd_s32(vget_low_s32(mmtmpD0b),vget_high_s32(mmtmpD0b)),
vpadd_s32(vget_low_s32(mmtmpD1b),vget_high_s32(mmtmpD1b)));
mmtmpD0 = vqshlq_s32(mmtmpD0,output_shift128);
mmtmpD1 = vqshlq_s32(mmtmpD1,output_shift128);
rxdataF_comp128[1] = vzip_s16(vmovn_s32(mmtmpD0),vmovn_s32(mmtmpD1));
if (pilots==0) {
mmtmpD0 = vmull_s16(ul_ch128[4], rxdataF128[4]);
mmtmpD1 = vmull_s16(ul_ch128[5], rxdataF128[5]);
mmtmpD0 = vcombine_s32(vpadd_s32(vget_low_s32(mmtmpD0),vget_high_s32(mmtmpD0)),
vpadd_s32(vget_low_s32(mmtmpD1),vget_high_s32(mmtmpD1)));
mmtmpD0b = vmull_s16(vrev32_s16(vmul_s16(ul_ch128[4],*(int16x4_t*)conj)), rxdataF128[4]);
mmtmpD1b = vmull_s16(vrev32_s16(vmul_s16(ul_ch128[5],*(int16x4_t*)conj)), rxdataF128[5]);
mmtmpD1 = vcombine_s32(vpadd_s32(vget_low_s32(mmtmpD0b),vget_high_s32(mmtmpD0b)),
vpadd_s32(vget_low_s32(mmtmpD1b),vget_high_s32(mmtmpD1b)));
mmtmpD0 = vqshlq_s32(mmtmpD0,output_shift128);
mmtmpD1 = vqshlq_s32(mmtmpD1,output_shift128);
rxdataF_comp128[2] = vzip_s16(vmovn_s32(mmtmpD0),vmovn_s32(mmtmpD1));
ul_ch128+=6;
ul_ch_mag128+=3;
ul_ch_mag128b+=3;
rxdataF128+=6;
rxdataF_comp128+=3;
} else { // we have a smaller PUSCH in symbols with pilots so skip last group of 4 REs and increment less
ul_ch128+=4;
ul_ch_mag128+=2;
ul_ch_mag128b+=2;
rxdataF128+=4;
rxdataF_comp128+=2;
}
}
}
}
if (rho) {
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) {
rho128 = (int16x4x2_t*)&rho[aarx][symbol*frame_parms->N_RB_UL*12];
ul_ch128 = (int16x4_t*)&ul_ch_estimates_ext[aarx][symbol*frame_parms->N_RB_UL*12];
ul_ch128_2 = (int16x4_t*)&ul_ch_estimates_ext[2+aarx][symbol*frame_parms->N_RB_UL*12];
for (rb=0; rb<nb_rb; rb++) {
mmtmpD0 = vmull_s16(ul_ch128[0], ul_ch128_2[0]);
mmtmpD1 = vmull_s16(ul_ch128[1], ul_ch128_2[1]);
mmtmpD0 = vcombine_s32(vpadd_s32(vget_low_s32(mmtmpD0),vget_high_s32(mmtmpD0)),
vpadd_s32(vget_low_s32(mmtmpD1),vget_high_s32(mmtmpD1)));
mmtmpD0b = vmull_s16(vrev32_s16(vmul_s16(ul_ch128[0],*(int16x4_t*)conj)), ul_ch128_2[0]);
mmtmpD1b = vmull_s16(vrev32_s16(vmul_s16(ul_ch128[1],*(int16x4_t*)conj)), ul_ch128_2[1]);
mmtmpD1 = vcombine_s32(vpadd_s32(vget_low_s32(mmtmpD0b),vget_high_s32(mmtmpD0b)),
vpadd_s32(vget_low_s32(mmtmpD1b),vget_high_s32(mmtmpD1b)));
mmtmpD0 = vqshlq_s32(mmtmpD0,output_shift128);
mmtmpD1 = vqshlq_s32(mmtmpD1,output_shift128);
rho128[0] = vzip_s16(vmovn_s32(mmtmpD0),vmovn_s32(mmtmpD1));
mmtmpD0 = vmull_s16(ul_ch128[2], ul_ch128_2[2]);
mmtmpD1 = vmull_s16(ul_ch128[3], ul_ch128_2[3]);
mmtmpD0 = vcombine_s32(vpadd_s32(vget_low_s32(mmtmpD0),vget_high_s32(mmtmpD0)),
vpadd_s32(vget_low_s32(mmtmpD1),vget_high_s32(mmtmpD1)));
mmtmpD0b = vmull_s16(vrev32_s16(vmul_s16(ul_ch128[2],*(int16x4_t*)conj)), ul_ch128_2[2]);
mmtmpD1b = vmull_s16(vrev32_s16(vmul_s16(ul_ch128[3],*(int16x4_t*)conj)), ul_ch128_2[3]);
mmtmpD1 = vcombine_s32(vpadd_s32(vget_low_s32(mmtmpD0b),vget_high_s32(mmtmpD0b)),
vpadd_s32(vget_low_s32(mmtmpD1b),vget_high_s32(mmtmpD1b)));
mmtmpD0 = vqshlq_s32(mmtmpD0,output_shift128);
mmtmpD1 = vqshlq_s32(mmtmpD1,output_shift128);
rho128[1] = vzip_s16(vmovn_s32(mmtmpD0),vmovn_s32(mmtmpD1));
mmtmpD0 = vmull_s16(ul_ch128[0], ul_ch128_2[0]);
mmtmpD1 = vmull_s16(ul_ch128[1], ul_ch128_2[1]);
mmtmpD0 = vcombine_s32(vpadd_s32(vget_low_s32(mmtmpD0),vget_high_s32(mmtmpD0)),
vpadd_s32(vget_low_s32(mmtmpD1),vget_high_s32(mmtmpD1)));
mmtmpD0b = vmull_s16(vrev32_s16(vmul_s16(ul_ch128[4],*(int16x4_t*)conj)), ul_ch128_2[4]);
mmtmpD1b = vmull_s16(vrev32_s16(vmul_s16(ul_ch128[5],*(int16x4_t*)conj)), ul_ch128_2[5]);
mmtmpD1 = vcombine_s32(vpadd_s32(vget_low_s32(mmtmpD0b),vget_high_s32(mmtmpD0b)),
vpadd_s32(vget_low_s32(mmtmpD1b),vget_high_s32(mmtmpD1b)));
mmtmpD0 = vqshlq_s32(mmtmpD0,output_shift128);
mmtmpD1 = vqshlq_s32(mmtmpD1,output_shift128);
rho128[2] = vzip_s16(vmovn_s32(mmtmpD0),vmovn_s32(mmtmpD1));
ul_ch128+=6;
ul_ch128_2+=6;
rho128+=3;
}
}
}
#endif
#ifdef DEBUG_CH_COMP
rxF = (int16_t *)&rxdataF_comp[0][(symbol*nb_rb*12)];
printf("----------------After compansation------------------\n");
for (prnt_idx=0;prnt_idx<12*nb_rb*2;prnt_idx++){
printf("rxF[%d] = %d\n", prnt_idx, rxF[prnt_idx]);
}
#endif
#ifdef DEBUG_CH_MAG
ch_mag = (int16_t *)&ul_ch_mag[0][(symbol*nb_rb*12)];
printf("----------------After computation------------------\n");
for (print_idx=0;print_idx<12*nb_rb*2;print_idx++){
printf("ch_mag[%d] = %d\n", print_idx, ch_mag[print_idx]);
}
#endif
}
void nr_rx_pusch(PHY_VARS_gNB *gNB, void nr_rx_pusch(PHY_VARS_gNB *gNB,
uint8_t UE_id, uint8_t UE_id,
...@@ -263,24 +975,53 @@ void nr_rx_pusch(PHY_VARS_gNB *gNB, ...@@ -263,24 +975,53 @@ void nr_rx_pusch(PHY_VARS_gNB *gNB,
unsigned char harq_pid) unsigned char harq_pid)
{ {
uint8_t cw_idx, first_symbol_flag, aarx, aatx, pilots; // pilots, a flag to indicate DMRS REs in current symbol
NR_DL_FRAME_PARMS *frame_parms = &gNB->frame_parms; NR_DL_FRAME_PARMS *frame_parms = &gNB->frame_parms;
nfapi_nr_ul_config_ulsch_pdu_rel15_t *rel15_ul = &gNB->ulsch[UE_id+1][0]->harq_processes[harq_pid]->ulsch_pdu.ulsch_pdu_rel15; nfapi_nr_ul_config_ulsch_pdu_rel15_t *rel15_ul = &gNB->ulsch[UE_id+1][0]->harq_processes[harq_pid]->ulsch_pdu.ulsch_pdu_rel15;
uint32_t nb_re_pusch; uint32_t nb_re_pusch, bwp_start_subcarrier;
int avgs;
int avg[4];
cw_idx = 0; // temp implementation
pilots = 0;
first_symbol_flag = 0;
if(symbol == rel15_ul->start_symbol) if(symbol == rel15_ul->start_symbol){
gNB->pusch_vars[UE_id]->rxdataF_ext_offset = 0; gNB->pusch_vars[UE_id]->rxdataF_ext_offset = 0;
first_symbol_flag = 1;
}
if (symbol == 2) // [hna] here it is assumed that symbol 2 carries 6 DMRS REs (dmrs-type 1) if (symbol == 2){ // [hna] here it is assumed that symbol 2 carries 6 DMRS REs (dmrs-type 1)
nb_re_pusch = rel15_ul->number_rbs * 6; nb_re_pusch = rel15_ul->number_rbs * 6;
else pilots = 1;
} else {
nb_re_pusch = rel15_ul->number_rbs * NR_NB_SC_PER_RB; nb_re_pusch = rel15_ul->number_rbs * NR_NB_SC_PER_RB;
pilots = 0;
}
bwp_start_subcarrier = (rel15_ul->start_rb*NR_NB_SC_PER_RB + frame_parms->first_carrier_offset) % frame_parms->ofdm_symbol_size;
//----------------------------------------------------------
//--------------------- Channel estimation ---------------------
//----------------------------------------------------------
if (pilots == 1)
nr_pusch_channel_estimation(gNB,
0,
nr_tti_rx,
0, // p
symbol,
bwp_start_subcarrier,
rel15_ul->number_rbs);
//---------------------------------------------------------- //----------------------------------------------------------
//--------------------- RBs extraction --------------------- //--------------------- RBs extraction ---------------------
//---------------------------------------------------------- //----------------------------------------------------------
nr_ulsch_extract_rbs_single(gNB->common_vars.rxdataF, nr_ulsch_extract_rbs_single(gNB->common_vars.rxdataF,
gNB->pusch_vars[UE_id]->ul_ch_estimates,
gNB->pusch_vars[UE_id]->rxdataF_ext, gNB->pusch_vars[UE_id]->rxdataF_ext,
gNB->pusch_vars[UE_id]->ul_ch_estimates_ext,
gNB->pusch_vars[UE_id]->rxdataF_ext_offset, gNB->pusch_vars[UE_id]->rxdataF_ext_offset,
// rb_alloc, [hna] Resource Allocation Type 1 is assumed only for the moment // rb_alloc, [hna] Resource Allocation Type 1 is assumed only for the moment
symbol, symbol,
...@@ -288,6 +1029,44 @@ void nr_rx_pusch(PHY_VARS_gNB *gNB, ...@@ -288,6 +1029,44 @@ void nr_rx_pusch(PHY_VARS_gNB *gNB,
rel15_ul->number_rbs, rel15_ul->number_rbs,
frame_parms); frame_parms);
nr_ulsch_scale_channel(gNB->pusch_vars[UE_id]->ul_ch_estimates_ext,
frame_parms,
gNB->ulsch,
symbol,
pilots,
rel15_ul->number_rbs);
if (first_symbol_flag==1) {
nr_ulsch_channel_level(gNB->pusch_vars[UE_id]->ul_ch_estimates_ext,
frame_parms,
avg,
symbol,
nb_re_pusch,
rel15_ul->number_rbs);
avgs = 0;
for (aatx=0;aatx<frame_parms->nb_antennas_tx;aatx++)
for (aarx=0;aarx<frame_parms->nb_antennas_rx;aarx++)
avgs = cmax(avgs,avg[(aatx<<1)+aarx]);
gNB->pusch_vars[UE_id]->log2_maxh = (log2_approx(avgs)/2)+1;
}
nr_ulsch_channel_compensation(gNB->pusch_vars[UE_id]->rxdataF_ext,
gNB->pusch_vars[UE_id]->ul_ch_estimates_ext,
gNB->pusch_vars[UE_id]->ul_ch_mag0,
gNB->pusch_vars[UE_id]->ul_ch_magb0,
gNB->pusch_vars[UE_id]->rxdataF_comp,
(frame_parms->nb_antennas_tx>1) ? gNB->pusch_vars[UE_id]->rho : NULL,
frame_parms,
symbol,
pilots,
rel15_ul->Qm,
rel15_ul->number_rbs,
gNB->pusch_vars[UE_id]->log2_maxh);
#ifdef NR_SC_FDMA #ifdef NR_SC_FDMA
nr_idft(&((uint32_t*)gNB->pusch_vars[UE_id]->rxdataF_ext[0])[symbol * rel15_ul->number_rbs * NR_NB_SC_PER_RB], nb_re_pusch); nr_idft(&((uint32_t*)gNB->pusch_vars[UE_id]->rxdataF_ext[0])[symbol * rel15_ul->number_rbs * NR_NB_SC_PER_RB], nb_re_pusch);
#endif #endif
...@@ -296,14 +1075,15 @@ void nr_rx_pusch(PHY_VARS_gNB *gNB, ...@@ -296,14 +1075,15 @@ void nr_rx_pusch(PHY_VARS_gNB *gNB,
//-------------------- LLRs computation -------------------- //-------------------- LLRs computation --------------------
//---------------------------------------------------------- //----------------------------------------------------------
nr_ulsch_compute_llr(&gNB->pusch_vars[UE_id]->rxdataF_ext[0][symbol * rel15_ul->number_rbs * NR_NB_SC_PER_RB], nr_ulsch_compute_llr(&gNB->pusch_vars[UE_id]->rxdataF_comp[0][symbol * rel15_ul->number_rbs * NR_NB_SC_PER_RB],
gNB->pusch_vars[UE_id]->ul_ch_mag, gNB->pusch_vars[UE_id]->ul_ch_mag0,
gNB->pusch_vars[UE_id]->ul_ch_magb, gNB->pusch_vars[UE_id]->ul_ch_magb0,
&gNB->pusch_vars[UE_id]->llr[gNB->pusch_vars[UE_id]->rxdataF_ext_offset * rel15_ul->Qm], &gNB->pusch_vars[UE_id]->llr[gNB->pusch_vars[UE_id]->rxdataF_ext_offset * rel15_ul->Qm],
rel15_ul->number_rbs,
nb_re_pusch, nb_re_pusch,
symbol, symbol,
rel15_ul->Qm); rel15_ul->Qm);
gNB->pusch_vars[UE_id]->rxdataF_ext_offset = gNB->pusch_vars[UE_id]->rxdataF_ext_offset + nb_re_pusch; gNB->pusch_vars[UE_id]->rxdataF_ext_offset = gNB->pusch_vars[UE_id]->rxdataF_ext_offset + nb_re_pusch;
} }
openair1/PHY/NR_TRANSPORT/nr_ulsch_llr_computation.c
View file @ abfd0723
...@@ -30,7 +30,6 @@ ...@@ -30,7 +30,6 @@
* \warning * \warning
*/ */
#include "PHY/defs_nr_common.h" #include "PHY/defs_nr_common.h"
#include "PHY/sse_intrin.h" #include "PHY/sse_intrin.h"
#include "PHY/impl_defs_top.h" #include "PHY/impl_defs_top.h"
...@@ -71,23 +70,20 @@ void nr_ulsch_qpsk_llr(int32_t *rxdataF_comp, ...@@ -71,23 +70,20 @@ void nr_ulsch_qpsk_llr(int32_t *rxdataF_comp,
void nr_ulsch_16qam_llr(int32_t *rxdataF_comp, void nr_ulsch_16qam_llr(int32_t *rxdataF_comp,
int32_t **ul_ch_mag, int32_t **ul_ch_mag,
int16_t *ulsch_llr, int16_t *ulsch_llr,
uint32_t nb_rb,
uint32_t nb_re, uint32_t nb_re,
uint8_t symbol) uint8_t symbol)
{ {
#if defined(__x86_64__) || defined(__i386__) #if defined(__x86_64__) || defined(__i386__)
__m128i *rxF = (__m128i*)rxdataF_comp; __m128i *rxF = (__m128i*)rxdataF_comp;
// __m128i *ch_mag; // [hna] This should be uncommented once channel estimation is implemented __m128i *ch_mag;
__m128i llr128[2]; __m128i llr128[2];
uint32_t *llr32; uint32_t *llr32;
// [hna] temp_channel and one_over_sqrt_2 are for temporary use until channel estimation is implemented
// else ul_ch_mag and ul_ch_magb should be used after channel estimation has benn implemented
__m128i temp_channel;
int16_t one_over_sqrt_2 = 23170;
#elif defined(__arm__) #elif defined(__arm__)
int16x8_t *rxF = (int16x8_t*)&rxdataF_comp; int16x8_t *rxF = (int16x8_t*)&rxdataF_comp;
// int16x8_t *ch_mag; // [hna] This should be uncommented once channel estimation is implemented int16x8_t *ch_mag;
int16x8_t xmm0; int16x8_t xmm0;
int16_t *llr16; int16_t *llr16;
#endif #endif
...@@ -103,21 +99,16 @@ void nr_ulsch_16qam_llr(int32_t *rxdataF_comp, ...@@ -103,21 +99,16 @@ void nr_ulsch_16qam_llr(int32_t *rxdataF_comp,
llr16 = (int16_t*)ulsch_llr; llr16 = (int16_t*)ulsch_llr;
#endif #endif
// [hna] This should be uncommented once channel estimation is implemented #if defined(__x86_64__) || defined(__i386__)
// ------------------------------------------------------------ ch_mag = (__m128i*)&ul_ch_mag[0][(symbol*nb_rb*12)];
// #if defined(__x86_64__) || defined(__i386__) #elif defined(__arm__)
// ch_mag = (__m128i*)&ul_ch_mag[0][(symbol*nb_rb*12)]; ch_mag = (int16x8_t*)&ul_ch_mag[0][(symbol*nb_rb*12)];
// #elif defined(__arm__) #endif
// ch_mag = (int16x8_t*)&ul_ch_mag[0][(symbol*nb_rb*12)];
// #endif
// ------------------------------------------------------------
len_mod4 = nb_re&3; len_mod4 = nb_re&3;
nb_re >>= 2; // length in quad words (4 REs) nb_re >>= 2; // length in quad words (4 REs)
nb_re += (len_mod4 == 0 ? 0 : 1); nb_re += (len_mod4 == 0 ? 0 : 1);
temp_channel = _mm_set1_epi16((QAM16_n1 * one_over_sqrt_2)>>(2*15-AMP_SHIFT));
for (i=0; i<nb_re; i++) { for (i=0; i<nb_re; i++) {
#if defined(__x86_64__) || defined(__i386) #if defined(__x86_64__) || defined(__i386)
...@@ -125,7 +116,7 @@ void nr_ulsch_16qam_llr(int32_t *rxdataF_comp, ...@@ -125,7 +116,7 @@ void nr_ulsch_16qam_llr(int32_t *rxdataF_comp,
xmm0 = _mm_abs_epi16(rxF[i]); // registers of even index in xmm0-> |y_R|, registers of odd index in xmm0-> |y_I| xmm0 = _mm_abs_epi16(rxF[i]); // registers of even index in xmm0-> |y_R|, registers of odd index in xmm0-> |y_I|
xmm0 = _mm_subs_epi16(temp_channel,xmm0); // registers of even index in xmm0-> |y_R|-|h|^2, registers of odd index in xmm0-> |y_I|-|h|^2 xmm0 = _mm_subs_epi16(ch_mag[i],xmm0); // registers of even index in xmm0-> |y_R|-|h|^2, registers of odd index in xmm0-> |y_I|-|h|^2
llr128[0] = _mm_unpacklo_epi32(rxF[i],xmm0); // llr128[0] contains the llrs of the 1st and 2nd REs llr128[0] = _mm_unpacklo_epi32(rxF[i],xmm0); // llr128[0] contains the llrs of the 1st and 2nd REs
llr128[1] = _mm_unpackhi_epi32(rxF[i],xmm0); // llr128[1] contains the llrs of the 3rd and 4th REs llr128[1] = _mm_unpackhi_epi32(rxF[i],xmm0); // llr128[1] contains the llrs of the 3rd and 4th REs
...@@ -186,52 +177,43 @@ void nr_ulsch_64qam_llr(int32_t *rxdataF_comp, ...@@ -186,52 +177,43 @@ void nr_ulsch_64qam_llr(int32_t *rxdataF_comp,
int32_t **ul_ch_mag, int32_t **ul_ch_mag,
int32_t **ul_ch_magb, int32_t **ul_ch_magb,
int16_t *ulsch_llr, int16_t *ulsch_llr,
uint32_t nb_rb,
uint32_t nb_re, uint32_t nb_re,
uint8_t symbol) uint8_t symbol)
{ {
#if defined(__x86_64__) || defined(__i386__) #if defined(__x86_64__) || defined(__i386__)
__m128i *rxF = (__m128i*)rxdataF_comp; __m128i *rxF = (__m128i*)rxdataF_comp;
// __m128i *ch_mag,*ch_magb; // [hna] This should be uncommented once channel estimation is implemented __m128i *ch_mag,*ch_magb;
// [hna] temp_channel and one_over_sqrt_2 are for temporary use until channel estimation is implemented
// else ul_ch_mag and ul_ch_magb should be used after channel estimation has been implemented
__m128i temp_channel[2];
int16_t one_over_sqrt_2 = 23170;
#elif defined(__arm__) #elif defined(__arm__)
int16x8_t *rxF = (int16x8_t*)&rxdataF_comp; int16x8_t *rxF = (int16x8_t*)&rxdataF_comp;
// int16x8_t *ch_mag,*ch_magb; // [hna] This should be uncommented once channel estimation is implemented int16x8_t *ch_mag,*ch_magb; // [hna] This should be uncommented once channel estimation is implemented
int16x8_t xmm1,xmm2; int16x8_t xmm1,xmm2;
#endif #endif
int i; int i;
unsigned char len_mod4; unsigned char len_mod4;
// [hna] This should be uncommented once channel estimation is implemented #if defined(__x86_64__) || defined(__i386__)
// ------------------------------------------------------------------------- ch_mag = (__m128i*)&ul_ch_mag[0][(symbol*nb_rb*12)];
// #if defined(__x86_64__) || defined(__i386__) ch_magb = (__m128i*)&ul_ch_magb[0][(symbol*nb_rb*12)];
// ch_mag = (__m128i*)&ul_ch_mag[0][(symbol*frame_parms->N_RB_UL*12)]; #elif defined(__arm__)
// ch_magb = (__m128i*)&ul_ch_magb[0][(symbol*frame_parms->N_RB_UL*12)]; ch_mag = (int16x8_t*)&ul_ch_mag[0][(symbol*nb_rb*12)];
// #elif defined(__arm__) ch_magb = (int16x8_t*)&ul_ch_magb[0][(symbol*nb_rb*12)];
// ch_mag = (int16x8_t*)&ul_ch_mag[0][(symbol*frame_parms->N_RB_UL*12)]; #endif
// ch_magb = (int16x8_t*)&ul_ch_magb[0][(symbol*frame_parms->N_RB_UL*12)];
// #endif
// -------------------------------------------------------------------------
len_mod4 = nb_re&3; len_mod4 = nb_re&3;
nb_re = nb_re>>2; // length in quad words (4 REs) nb_re = nb_re>>2; // length in quad words (4 REs)
nb_re += ((len_mod4 == 0) ? 0 : 1); nb_re += ((len_mod4 == 0) ? 0 : 1);
temp_channel[0] = _mm_set1_epi16((QAM64_n1 * one_over_sqrt_2)>>(2*15-AMP_SHIFT));
temp_channel[1] = _mm_set1_epi16((QAM64_n2 * one_over_sqrt_2)>>(2*15-AMP_SHIFT));
for (i=0; i<nb_re; i++) { for (i=0; i<nb_re; i++) {
#if defined(__x86_64__) || defined(__i386__) #if defined(__x86_64__) || defined(__i386__)
xmm1 = _mm_abs_epi16(rxF[i]); xmm1 = _mm_abs_epi16(rxF[i]);
xmm1 = _mm_subs_epi16(temp_channel[0],xmm1); xmm1 = _mm_subs_epi16(ch_mag[i],xmm1);
xmm2 = _mm_abs_epi16(xmm1); xmm2 = _mm_abs_epi16(xmm1);
xmm2 = _mm_subs_epi16(temp_channel[1],xmm2); xmm2 = _mm_subs_epi16(ch_magb[i],xmm2);
#elif defined(__arm__) #elif defined(__arm__)
xmm1 = vabsq_s16(rxF[i]); xmm1 = vabsq_s16(rxF[i]);
xmm1 = vsubq_s16(ch_mag[i],xmm1); xmm1 = vsubq_s16(ch_mag[i],xmm1);
...@@ -331,6 +313,7 @@ void nr_ulsch_compute_llr(int32_t *rxdataF_comp, ...@@ -331,6 +313,7 @@ void nr_ulsch_compute_llr(int32_t *rxdataF_comp,
int32_t **ul_ch_mag, int32_t **ul_ch_mag,
int32_t **ul_ch_magb, int32_t **ul_ch_magb,
int16_t *ulsch_llr, int16_t *ulsch_llr,
uint32_t nb_rb,
uint32_t nb_re, uint32_t nb_re,
uint8_t symbol, uint8_t symbol,
uint8_t mod_order) uint8_t mod_order)
...@@ -346,6 +329,7 @@ void nr_ulsch_compute_llr(int32_t *rxdataF_comp, ...@@ -346,6 +329,7 @@ void nr_ulsch_compute_llr(int32_t *rxdataF_comp,
nr_ulsch_16qam_llr(rxdataF_comp, nr_ulsch_16qam_llr(rxdataF_comp,
ul_ch_mag, ul_ch_mag,
ulsch_llr, ulsch_llr,
nb_rb,
nb_re, nb_re,
symbol); symbol);
break; break;
...@@ -354,6 +338,7 @@ void nr_ulsch_compute_llr(int32_t *rxdataF_comp, ...@@ -354,6 +338,7 @@ void nr_ulsch_compute_llr(int32_t *rxdataF_comp,
ul_ch_mag, ul_ch_mag,
ul_ch_magb, ul_ch_magb,
ulsch_llr, ulsch_llr,
nb_rb,
nb_re, nb_re,
symbol); symbol);
break; break;
......
openair1/PHY/NR_UE_ESTIMATION/filt16a_32.c 0 → 100644
View file @ abfd0723
/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
#include "filt16a_32.h"
short filt16a_l0[16] = {
16384,12288,8192,4096,0,0,0,0,0,0,0,0,0,0,0,0};
short filt16a_r0[16] = {
0,0,0,0,0,4096,8192,12288,16384,20480,24576,28672,0,0,0,0};
short filt16a_m0[16] = {
0,4096,8192,12288,16384,12288,8192,4096,0,-4096,-8192,-12288,0,0,0,0};
short filt16a_l1[16] = {
20480,16384,12288,8192,4096,0,0,0,0,0,0,0,0,0,0,0};
short filt16a_r1[16] = {
0,0,0,0,0,0,4096,8192,12288,16384,20480,24576,0,0,0,0};
short filt16a_m1[16] = {
-4096,0,4096,8192,12288,16384,12288,8192,4096,0,-4096,-8192,0,0,0,0};
short filt16a_l2[16] = {
24576,20480,16384,12288,8192,4096,0,0,0,0,0,0,0,0,0,0};
short filt16a_r2[16] = {
0,0,0,0,0,0,0,4096,8192,12288,16384,20480,0,0,0,0};
short filt16a_m2[16] = {
-8192,-4096,0,4096,8192,12288,16384,12288,8192,4096,0,-4096,0,0,0,0};
short filt16a_l3[16] = {
28672,24576,20480,16384,12288,8192,4096,0,0,0,0,0,0,0,0,0};
short filt16a_r3[16] = {
0,0,0,0,0,0,0,0,4096,8192,12288,16384,0,0,0,0};
short filt16a_m3[16] = {
-12288,-8192,-4096,0,4096,8192,12288,16384,12288,8192,4096,0,0,0,0,0};
short filt16a_l0_dc[16] = {
16384,12288,8192,4096,0,0,0,0,0,0,0,0,0,0,0,0};
short filt16a_r0_dc[16] = {
0,0,0,0,0,3276,9830,13107,16384,19660,22937,26214,0,0,0,0};
short filt16a_m0_dc[16] = {
0,4096,8192,12288,16384,13107,6553,3276,0,-3277,-6554,-9831,0,0,0,0};
short filt16a_l1_dc[16] = {
16384,12288,8192,4096,0,-4096,0,0,0,0,0,0,0,0,0,0};
short filt16a_r1_dc[16] = {
0,0,0,0,0,0,6553,9830,13107,16384,19660,22937,0,0,0,0};
short filt16a_m1_dc[16] = {
-4096,0,4096,8192,12288,16384,9830,6553,3276,0,-3277,-6554,0,0,0,0};
short filt16a_l2_dc[16] = {
26214,22937,19660,16384,13107,9830,6553,0,0,0,0,0,0,0,0,0};
short filt16a_r2_dc[16] = {
0,0,0,0,0,0,0,4096,8192,12288,16384,20480,0,0,0,0};
short filt16a_m2_dc[16] = {
-6554,-3277,0,3276,6553,6553,16384,12288,8192,4096,0,-4096,0,0,0,0};
short filt16a_l3_dc[16] = {
26214,22937,19660,16384,13107,9830,3276,0,0,0,0,0,0,0,0,0};
short filt16a_r3_dc[16] = {
0,0,0,0,0,0,0,0,4096,8192,12288,16384,0,0,0,0};
short filt16a_m3_dc[16] = {
-9831,-6554,-3277,0,3276,6553,9830,16384,12288,8192,4096,0,0,0,0,0};
short filt16a_1[16] = {
16384,16384,16384,16384,16384,16384,16384,16384,16384,16384,16384,16384};
short filt16a_2l0[16] = {
16384,12288,8192,4096,-4096,0,0,0,0,0,0,0,0,0,0,0};
short filt16a_2r0[16] = {
0,4096,8192,12288,16384,20480,0,0,0,0,0,0,0,0,0,0};
short filt16a_2l1[16] = {
20480,16384,12288,8192,4096,0,0,0,0,0,0,0,0,0,0,0};
short filt16a_2r1[16] = {
-4096,0,4096,8192,12288,16384,0,0,0,0,0,0,0,0,0,0};
/*filter8*/
short filt8_l0[8] = {
16384,8192,0,0,0,0,0,0};
short filt8_mr0[8] = {
0,0,0,8192,16384,8192,0,-8192};
short filt8_r0[8] = {
0,8192,16384,24576,0,0,0,0};
short filt8_m0[8] = {
0,8192,16384,8192,0,0,0,0};
short filt8_mm0[8]= {
0,0,0,8192,16384,8192,0,0};
short filt8_l1[8] = {
24576,16384,0,0,0,0,0,0};
short filt8_ml1[8] = {
-8192,0,8192,16384,8192,0,0,0};
short filt8_r1[8] = {
0,0,8192,16384,0,0,0,0};
short filt8_m1[8] = {
0,0,8192,16384,8192,0,0,0};
short filt8_mm1[8]= {
0,0,0,0,8192,16384,8192,0};
\ No newline at end of file
openair1/PHY/NR_UE_ESTIMATION/filt16a_32.h
View file @ abfd0723
short filt16a_l0[16] = { /*
16384,12288,8192,4096,0,0,0,0,0,0,0,0,0,0,0,0}; * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
short filt16a_r0[16] = { #ifndef __FILT16A_32__H__
0,0,0,0,0,4096,8192,12288,16384,20480,24576,28672,0,0,0,0}; #define __FILT16A_32__H__
short filt16a_m0[16] = { extern short filt16a_l0[16];
0,4096,8192,12288,16384,12288,8192,4096,0,-4096,-8192,-12288,0,0,0,0};
short filt16a_l1[16] = { extern short filt16a_r0[16];
20480,16384,12288,8192,4096,0,0,0,0,0,0,0,0,0,0,0};
short filt16a_r1[16] = { extern short filt16a_m0[16];
0,0,0,0,0,0,4096,8192,12288,16384,20480,24576,0,0,0,0};
short filt16a_m1[16] = { extern short filt16a_l1[16];
-4096,0,4096,8192,12288,16384,12288,8192,4096,0,-4096,-8192,0,0,0,0};
short filt16a_l2[16] = { extern short filt16a_r1[16];
24576,20480,16384,12288,8192,4096,0,0,0,0,0,0,0,0,0,0};
short filt16a_r2[16] = { extern short filt16a_m1[16];
0,0,0,0,0,0,0,4096,8192,12288,16384,20480,0,0,0,0};
short filt16a_m2[16] = { extern short filt16a_l2[16];
-8192,-4096,0,4096,8192,12288,16384,12288,8192,4096,0,-4096,0,0,0,0};
short filt16a_l3[16] = { extern short filt16a_r2[16];
28672,24576,20480,16384,12288,8192,4096,0,0,0,0,0,0,0,0,0};
short filt16a_r3[16] = { extern short filt16a_m2[16];
0,0,0,0,0,0,0,0,4096,8192,12288,16384,0,0,0,0};
short filt16a_m3[16] = { extern short filt16a_l3[16];
-12288,-8192,-4096,0,4096,8192,12288,16384,12288,8192,4096,0,0,0,0,0};
short filt16a_l0_dc[16] = { extern short filt16a_r3[16];
16384,12288,8192,4096,0,0,0,0,0,0,0,0,0,0,0,0};
short filt16a_r0_dc[16] = { extern short filt16a_m3[16];
0,0,0,0,0,3276,9830,13107,16384,19660,22937,26214,0,0,0,0};
short filt16a_m0_dc[16] = { extern short filt16a_l0_dc[16];
0,4096,8192,12288,16384,13107,6553,3276,0,-3277,-6554,-9831,0,0,0,0};
short filt16a_l1_dc[16] = { extern short filt16a_r0_dc[16];
16384,12288,8192,4096,0,-4096,0,0,0,0,0,0,0,0,0,0};
short filt16a_r1_dc[16] = { extern short filt16a_m0_dc[16];
0,0,0,0,0,0,6553,9830,13107,16384,19660,22937,0,0,0,0};
short filt16a_m1_dc[16] = { extern short filt16a_l1_dc[16];
-4096,0,4096,8192,12288,16384,9830,6553,3276,0,-3277,-6554,0,0,0,0};
short filt16a_l2_dc[16] = { extern short filt16a_r1_dc[16];
26214,22937,19660,16384,13107,9830,6553,0,0,0,0,0,0,0,0,0};
short filt16a_r2_dc[16] = { extern short filt16a_m1_dc[16];
0,0,0,0,0,0,0,4096,8192,12288,16384,20480,0,0,0,0};
short filt16a_m2_dc[16] = { extern short filt16a_l2_dc[16];
-6554,-3277,0,3276,6553,6553,16384,12288,8192,4096,0,-4096,0,0,0,0};
short filt16a_l3_dc[16] = { extern short filt16a_r2_dc[16];
26214,22937,19660,16384,13107,9830,3276,0,0,0,0,0,0,0,0,0};
short filt16a_r3_dc[16] = { extern short filt16a_m2_dc[16];
0,0,0,0,0,0,0,0,4096,8192,12288,16384,0,0,0,0};
short filt16a_m3_dc[16] = { extern short filt16a_l3_dc[16];
-9831,-6554,-3277,0,3276,6553,9830,16384,12288,8192,4096,0,0,0,0,0};
short filt16a_1[16] = { extern short filt16a_r3_dc[16];
16384,16384,16384,16384,16384,16384,16384,16384,16384,16384,16384,16384};
short filt16a_2l0[16] = { extern short filt16a_m3_dc[16];
16384,12288,8192,4096,-4096,0,0,0,0,0,0,0,0,0,0,0};
short filt16a_2r0[16] = { extern short filt16a_1[16];
0,4096,8192,12288,16384,20480,0,0,0,0,0,0,0,0,0,0};
short filt16a_2l1[16] = { extern short filt16a_2l0[16];
20480,16384,12288,8192,4096,0,0,0,0,0,0,0,0,0,0,0};
short filt16a_2r1[16] = { extern short filt16a_2r0[16];
-4096,0,4096,8192,12288,16384,0,0,0,0,0,0,0,0,0,0};
extern short filt16a_2l1[16];
extern short filt16a_2r1[16];
/*filter8*/ /*filter8*/
short filt8_l0[8] = { extern short filt8_l0[8];
16384,8192,0,0,0,0,0,0};
extern short filt8_mr0[8];
short filt8_mr0[8] = { extern short filt8_r0[8];
0,0,0,8192,16384,8192,0,-8192};
short filt8_r0[8] = { extern short filt8_m0[8];
0,8192,16384,24576,0,0,0,0};
short filt8_m0[8] = { extern short filt8_mm0[8];
0,8192,16384,8192,0,0,0,0};
short filt8_mm0[8]= { extern short filt8_l1[8];
0,0,0,8192,16384,8192,0,0};
short filt8_l1[8] = { extern short filt8_ml1[8];
24576,16384,0,0,0,0,0,0};
short filt8_ml1[8] = { extern short filt8_r1[8];
-8192,0,8192,16384,8192,0,0,0};
short filt8_r1[8] = { extern short filt8_m1[8];
0,0,8192,16384,0,0,0,0};
short filt8_m1[8] = { extern short filt8_mm1[8];
0,0,8192,16384,8192,0,0,0};
short filt8_mm1[8]= { #endif
0,0,0,0,8192,16384,8192,0}; \ No newline at end of file
openair1/PHY/NR_UE_TRANSPORT/nr_ulsch_ue.c
View file @ abfd0723
...@@ -42,6 +42,7 @@ ...@@ -42,6 +42,7 @@
#include "PHY/TOOLS/tools_defs.h" #include "PHY/TOOLS/tools_defs.h"
//#define DEBUG_SCFDMA //#define DEBUG_SCFDMA
//#define DEBUG_PUSCH_MAPPING
int generate_ue_ulsch_params(PHY_VARS_NR_UE *UE, int generate_ue_ulsch_params(PHY_VARS_NR_UE *UE,
...@@ -342,6 +343,7 @@ uint8_t nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE, ...@@ -342,6 +343,7 @@ uint8_t nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
((int16_t*)txdataF[ap])[((sample_offsetF)<<1) + 1]); ((int16_t*)txdataF[ap])[((sample_offsetF)<<1) + 1]);
#endif #endif
dmrs_idx++; dmrs_idx++;
k_prime++; k_prime++;
k_prime&=1; k_prime&=1;
......
openair1/PHY/defs_gNB.h
View file @ abfd0723
...@@ -366,11 +366,15 @@ typedef struct { ...@@ -366,11 +366,15 @@ typedef struct {
/// \brief Hold the channel estimates in time domain based on DRS. /// \brief Hold the channel estimates in time domain based on DRS.
/// - first index: rx antenna id [0..nb_antennas_rx[ /// - first index: rx antenna id [0..nb_antennas_rx[
/// - second index: ? [0..4*ofdm_symbol_size[ /// - second index: ? [0..4*ofdm_symbol_size[
int32_t **drs_ch_estimates_time; int32_t **ul_ch_estimates_time;
/// \brief Hold the channel estimates in frequency domain based on DRS. /// \brief Hold the channel estimates in frequency domain based on DRS.
/// - first index: rx antenna id [0..nb_antennas_rx[ /// - first index: rx antenna id [0..nb_antennas_rx[
/// - second index: ? [0..12*N_RB_UL*frame_parms->symbols_per_tti[ /// - second index: ? [0..12*N_RB_UL*frame_parms->symbols_per_tti[
int32_t **drs_ch_estimates; int32_t **ul_ch_estimates;
/// \brief Uplink channel estimates extracted in PRBS.
/// - first index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
/// - second index: ? [0..12*N_RB_UL*frame_parms->symbols_per_tti[
int32_t **ul_ch_estimates_ext;
/// \brief Holds the compensated signal. /// \brief Holds the compensated signal.
/// - first index: rx antenna id [0..nb_antennas_rx[ /// - first index: rx antenna id [0..nb_antennas_rx[
/// - second index: ? [0..12*N_RB_UL*frame_parms->symbols_per_tti[ /// - second index: ? [0..12*N_RB_UL*frame_parms->symbols_per_tti[
...@@ -383,6 +387,28 @@ typedef struct { ...@@ -383,6 +387,28 @@ typedef struct {
/// - first index: rx antenna id [0..nb_antennas_rx[ /// - first index: rx antenna id [0..nb_antennas_rx[
/// - second index: ? [0..12*N_RB_UL*frame_parms->symbols_per_tti[ /// - second index: ? [0..12*N_RB_UL*frame_parms->symbols_per_tti[
int32_t **ul_ch_magb; int32_t **ul_ch_magb;
/// \brief Cross-correlation of two UE signals.
/// - first index: rx antenna [0..nb_antennas_rx[
/// - second index: symbol [0..]
int32_t **rho;
/// \f$\log_2(\max|H_i|^2)\f$
int16_t log2_maxh;
/// \brief Magnitude of Uplink Channel first layer (16QAM level/First 64QAM level).
/// - first index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
/// - second index: ? [0..168*N_RB_UL[
int32_t **ul_ch_mag0;
/// \brief Magnitude of Uplink Channel second layer (16QAM level/First 64QAM level).
/// - first index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
/// - second index: ? [0..168*N_RB_UL[
int32_t **ul_ch_mag1[8][8];
/// \brief Magnitude of Uplink Channel, first layer (2nd 64QAM level).
/// - first index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
/// - second index: ? [0..168*N_RB_UL[
int32_t **ul_ch_magb0;
/// \brief Magnitude of Uplink Channel second layer (2nd 64QAM level).
/// - first index: ? [0..7] (hard coded) FIXME! accessed via \c nb_antennas_rx
/// - second index: ? [0..168*N_RB_UL[
int32_t **ul_ch_magb1[8][8];
/// measured RX power based on DRS /// measured RX power based on DRS
int ulsch_power[2]; int ulsch_power[2];
/// \brief llr values. /// \brief llr values.
...@@ -641,6 +667,9 @@ typedef struct PHY_VARS_gNB_s { ...@@ -641,6 +667,9 @@ typedef struct PHY_VARS_gNB_s {
/// PDSCH DMRS sequence /// PDSCH DMRS sequence
uint32_t ****nr_gold_pdsch_dmrs; uint32_t ****nr_gold_pdsch_dmrs;
/// PUSCH DMRS
uint32_t nr_gold_pusch[2][20][2][52];
/// Indicator set to 0 after first SR /// Indicator set to 0 after first SR
uint8_t first_sr[NUMBER_OF_UE_MAX]; uint8_t first_sr[NUMBER_OF_UE_MAX];
......
openair1/PHY/impl_defs_top.h
View file @ abfd0723
...@@ -208,6 +208,7 @@ ...@@ -208,6 +208,7 @@
/// First Amplitude for QAM16 (\f$ 2^{15} \times 2/\sqrt{10}\f$) /// First Amplitude for QAM16 (\f$ 2^{15} \times 2/\sqrt{10}\f$)
#define QAM16_n1 20724 #define QAM16_n1 20724
/// Second Amplitude for QAM16 (\f$ 2^{15} \times 1/\sqrt{10}\f$) /// Second Amplitude for QAM16 (\f$ 2^{15} \times 1/\sqrt{10}\f$)
#define QAM16_n2 10362 #define QAM16_n2 10362
......
openair1/SIMULATION/NR_PHY/ulsim.c
View file @ abfd0723
...@@ -497,6 +497,8 @@ int main(int argc, char **argv) ...@@ -497,6 +497,8 @@ int main(int argc, char **argv)
//---------------------- count errors ---------------------- //---------------------- count errors ----------------------
//---------------------------------------------------------- //----------------------------------------------------------
printf("available_bits = %d\n",available_bits);
for (i = 0; i < available_bits; i++) { for (i = 0; i < available_bits; i++) {
if(((ulsch_ue[0]->g[i] == 0) && (gNB->pusch_vars[UE_id]->llr[i] <= 0)) || if(((ulsch_ue[0]->g[i] == 0) && (gNB->pusch_vars[UE_id]->llr[i] <= 0)) ||
...@@ -511,6 +513,7 @@ int main(int argc, char **argv) ...@@ -511,6 +513,7 @@ int main(int argc, char **argv)
} }
for (i = 0; i < TBS; i++) { for (i = 0; i < TBS; i++) {
estimated_output_bit[i] = (ulsch_gNB->harq_processes[harq_pid]->b[i/8] & (1 << (i & 7))) >> (i & 7); estimated_output_bit[i] = (ulsch_gNB->harq_processes[harq_pid]->b[i/8] & (1 << (i & 7))) >> (i & 7);
......
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