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ue nr pdcch channel est update

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This commit is contained in:
Hongzhi Wang
2018-07-09 17:08:08 +02:00
parent a79992bc75
commit 8ee10be253
3 changed files with 25 additions and 13 deletions
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openair1/PHY/MODULATION/slot_fep.c
+7 -1
View File
@@ -23,6 +23,7 @@
#include "PHY/defs_nr_UE.h"
#include "modulation_UE.h"
#include "PHY/LTE_ESTIMATION/lte_estimation.h"
#include "PHY/NR_UE_ESTIMATION/nr_estimation.h"
//#define DEBUG_FEP
@@ -48,6 +49,9 @@ int nr_slot_fep(PHY_VARS_NR_UE *ue,
int i;
unsigned int frame_length_samples = frame_parms->samples_per_subframe * 10;
unsigned int rx_offset;
//NR_UE_PDCCH *pdcch_vars = ue->pdcch_vars[ue->current_thread_id[Ns>>1]][0];
uint16_t coreset_start_subcarrier = frame_parms->first_carrier_offset;
uint16_t nb_rb_coreset = 24;
/*LTE_UE_DLSCH_t **dlsch_ue = phy_vars_ue->dlsch_ue[eNB_id];
unsigned char harq_pid = dlsch_ue[0]->current_harq_pid;
@@ -242,7 +246,9 @@ int nr_slot_fep(PHY_VARS_NR_UE *ue,
Ns,
aa,
l,
symbol);
symbol,
coreset_start_subcarrier,
nb_rb_coreset);
#if UE_TIMING_TRACE
stop_meas(&ue->dlsch_channel_estimation_stats);
#endif
openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c
+11 -7
View File
@@ -229,6 +229,7 @@ int nr_pdcch_channel_estimation(PHY_VARS_NR_UE *ue,
unsigned char p,
unsigned char l,
unsigned char symbol,
unsigned short coreset_start_subcarrier,
unsigned short nb_rb_coreset)
{
int pilot[2][200] __attribute__((aligned(16)));
@@ -241,8 +242,8 @@ int nr_pdcch_channel_estimation(PHY_VARS_NR_UE *ue,
//uint16_t Nid_cell = (eNB_offset == 0) ? ue->frame_parms.Nid_cell : ue->measurements.adj_cell_id[eNB_offset-1];
uint8_t nushift;
int **dl_ch_estimates =ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[Ns]].dl_ch_estimates[eNB_offset];
int **rxdataF=ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[Ns]].rxdataF;
int **dl_ch_estimates =ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[Ns>>1]].dl_ch_estimates[eNB_offset];
int **rxdataF=ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[Ns>>1]].rxdataF;
nushift = 1;
ue->frame_parms.nushift = nushift;
@@ -254,7 +255,7 @@ int nr_pdcch_channel_estimation(PHY_VARS_NR_UE *ue,
symbol_offset = ue->frame_parms.ofdm_symbol_size*symbol;
k = nushift;
k = coreset_start_subcarrier;
#ifdef DEBUG_CH
printf("PBCH Channel Estimation : ThreadId %d, eNB_offset %d cell_id %d ch_offset %d, OFDM size %d, Ncp=%d, l=%d, Ns=%d, k=%d symbol %d\n",ue->current_thread_id[Ns>>1], eNB_offset,Nid_cell,ch_offset,ue->frame_parms.ofdm_symbol_size,
@@ -271,7 +272,7 @@ int nr_pdcch_channel_estimation(PHY_VARS_NR_UE *ue,
for (aarx=0; aarx<ue->frame_parms.nb_antennas_rx; aarx++) {
pil = (int16_t *)&pilot[p][0];
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k+(ue->frame_parms.ofdm_symbol_size-12*(nb_rb_coreset>>1)))];
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k+nushift)];
dl_ch = (int16_t *)&dl_ch_estimates[(p<<1)+aarx][ch_offset];
memset(dl_ch,0,4*(ue->frame_parms.ofdm_symbol_size));
@@ -329,11 +330,13 @@ int nr_pdcch_channel_estimation(PHY_VARS_NR_UE *ue,
pil+=2;
rxF+=8;
dl_ch+=24;
k+=12;
for (pilot_cnt=3; pilot_cnt<(3*24); pilot_cnt+=3) {
for (pilot_cnt=3; pilot_cnt<(3*nb_rb_coreset); pilot_cnt+=3) {
if (pilot_cnt == 36)
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k)];
if (k >= ue->frame_parms.ofdm_symbol_size){
k-=ue->frame_parms.ofdm_symbol_size;
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k+nushift)];}
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);
@@ -377,6 +380,7 @@ int nr_pdcch_channel_estimation(PHY_VARS_NR_UE *ue,
pil+=2;
rxF+=8;
dl_ch+=24;
k+=12;
}
openair1/PHY/NR_UE_ESTIMATION/nr_estimation.h
+7 -5
View File
@@ -19,12 +19,12 @@
* contact@openairinterface.org
*/
#ifndef __LTE_ESTIMATION_DEFS__H__
#define __LTE_ESTIMATION_DEFS__H__
#ifndef __NR_ESTIMATION_DEFS__H__
#define __NR_ESTIMATION_DEFS__H__
#include "PHY/defs_nr_UE.h"
#include "PHY/defs_gNB.h"
//#include "PHY/defs_gNB.h"
/** @addtogroup _PHY_PARAMETER_ESTIMATION_BLOCKS_
* @{
*/
@@ -42,13 +42,15 @@
\param l symbol within slot
\param symbol symbol within frame
*/
int nr_dl_channel_estimation(PHY_VARS_NR_UE *ue,
int nr_pdcch_channel_estimation(PHY_VARS_NR_UE *ue,
uint8_t eNB_id,
uint8_t eNB_offset,
unsigned char Ns,
unsigned char p,
unsigned char l,
unsigned char symbol);
unsigned char symbol,
unsigned short coreset_start_subcarrier,
unsigned short nb_rb_coreset);
int nr_pbch_channel_estimation(PHY_VARS_NR_UE *ue,
uint8_t eNB_id,