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Commit bb9c3ca1 authored by Parminder Singh's avatar Parminder Singh
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ue->high_speed_flag is removed from UE channel estimation 

- This flag is always set to 1, furthermore with multiple DMRS symbols
  configuration very recent DMRS containing symbol shall be for channel
  estimation.
parent f3ea3104
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Showing with 37 additions and 71 deletions
openair1/PHY/INIT/nr_init_ue.c
View file @ bb9c3ca1
...@@ -468,9 +468,6 @@ int init_nr_ue_signal(PHY_VARS_NR_UE *ue, ...@@ -468,9 +468,6 @@ int init_nr_ue_signal(PHY_VARS_NR_UE *ue,
else else
ue->pdsch_config_dedicated->p_a = dB0; ue->pdsch_config_dedicated->p_a = dB0;
// set channel estimation to do linear interpolation in time
ue->high_speed_flag = 1;
ue->ch_est_alpha = 24576;
// enable MIB/SIB decoding by default // enable MIB/SIB decoding by default
ue->decode_MIB = 1; ue->decode_MIB = 1;
ue->decode_SIB = 1; ue->decode_SIB = 1;
......
openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c
View file @ bb9c3ca1
...@@ -224,9 +224,6 @@ int nr_pbch_channel_estimation(PHY_VARS_NR_UE *ue, ...@@ -224,9 +224,6 @@ int nr_pbch_channel_estimation(PHY_VARS_NR_UE *ue,
unsigned int ssb_offset = ue->frame_parms.first_carrier_offset + ue->frame_parms.ssb_start_subcarrier; unsigned int ssb_offset = ue->frame_parms.first_carrier_offset + ue->frame_parms.ssb_start_subcarrier;
if (ssb_offset>= ue->frame_parms.ofdm_symbol_size) ssb_offset-=ue->frame_parms.ofdm_symbol_size; if (ssb_offset>= ue->frame_parms.ofdm_symbol_size) ssb_offset-=ue->frame_parms.ofdm_symbol_size;
if (ue->high_speed_flag == 0) // use second channel estimate position for temporary storage
ch_offset = ue->frame_parms.ofdm_symbol_size ;
else
ch_offset = ue->frame_parms.ofdm_symbol_size*symbol; ch_offset = ue->frame_parms.ofdm_symbol_size*symbol;
AssertFatal(dmrss >= 0 && dmrss < 3, AssertFatal(dmrss >= 0 && dmrss < 3,
...@@ -285,10 +282,7 @@ int nr_pbch_channel_estimation(PHY_VARS_NR_UE *ue, ...@@ -285,10 +282,7 @@ int nr_pbch_channel_estimation(PHY_VARS_NR_UE *ue,
dl_ch = (int16_t *)&dl_ch_estimates[aarx][ch_offset]; dl_ch = (int16_t *)&dl_ch_estimates[aarx][ch_offset];
memset(dl_ch,0,4*(ue->frame_parms.ofdm_symbol_size)); memset(dl_ch,0,4*(ue->frame_parms.ofdm_symbol_size));
if (ue->high_speed_flag==0) // multiply previous channel estimate by ch_est_alpha
multadd_complex_vector_real_scalar(dl_ch-(ue->frame_parms.ofdm_symbol_size<<1),
ue->ch_est_alpha,dl_ch-(ue->frame_parms.ofdm_symbol_size<<1),
1,ue->frame_parms.ofdm_symbol_size);
#ifdef DEBUG_CH #ifdef DEBUG_CH
printf("pbch ch est pilot addr %p RB_DL %d\n",&pilot[0], ue->frame_parms.N_RB_DL); printf("pbch ch est pilot addr %p RB_DL %d\n",&pilot[0], ue->frame_parms.N_RB_DL);
printf("k %d, first_carrier %d\n",k,ue->frame_parms.first_carrier_offset); printf("k %d, first_carrier %d\n",k,ue->frame_parms.first_carrier_offset);
...@@ -492,10 +486,6 @@ int nr_pdcch_channel_estimation(PHY_VARS_NR_UE *ue, ...@@ -492,10 +486,6 @@ int nr_pdcch_channel_estimation(PHY_VARS_NR_UE *ue,
int **dl_ch_estimates =ue->pdcch_vars[proc->thread_id][eNB_offset]->dl_ch_estimates; int **dl_ch_estimates =ue->pdcch_vars[proc->thread_id][eNB_offset]->dl_ch_estimates;
int **rxdataF=ue->common_vars.common_vars_rx_data_per_thread[proc->thread_id].rxdataF; int **rxdataF=ue->common_vars.common_vars_rx_data_per_thread[proc->thread_id].rxdataF;
if (ue->high_speed_flag == 0) // use second channel estimate position for temporary storage
ch_offset = ue->frame_parms.ofdm_symbol_size ;
else
ch_offset = ue->frame_parms.ofdm_symbol_size*symbol; ch_offset = ue->frame_parms.ofdm_symbol_size*symbol;
symbol_offset = ue->frame_parms.ofdm_symbol_size*symbol; symbol_offset = ue->frame_parms.ofdm_symbol_size*symbol;
...@@ -531,10 +521,7 @@ int nr_pdcch_channel_estimation(PHY_VARS_NR_UE *ue, ...@@ -531,10 +521,7 @@ int nr_pdcch_channel_estimation(PHY_VARS_NR_UE *ue,
dl_ch = (int16_t *)&dl_ch_estimates[aarx][ch_offset]; dl_ch = (int16_t *)&dl_ch_estimates[aarx][ch_offset];
memset(dl_ch,0,4*(ue->frame_parms.ofdm_symbol_size)); memset(dl_ch,0,4*(ue->frame_parms.ofdm_symbol_size));
if (ue->high_speed_flag==0) // multiply previous channel estimate by ch_est_alpha
multadd_complex_vector_real_scalar(dl_ch-(ue->frame_parms.ofdm_symbol_size<<1),
ue->ch_est_alpha,dl_ch-(ue->frame_parms.ofdm_symbol_size<<1),
1,ue->frame_parms.ofdm_symbol_size);
#ifdef DEBUG_PDCCH #ifdef DEBUG_PDCCH
printf("pdcch ch est pilot addr %p RB_DL %d\n",&pilot[0], ue->frame_parms.N_RB_DL); printf("pdcch ch est pilot addr %p RB_DL %d\n",&pilot[0], ue->frame_parms.N_RB_DL);
printf("k %d, first_carrier %d\n",k,ue->frame_parms.first_carrier_offset); printf("k %d, first_carrier %d\n",k,ue->frame_parms.first_carrier_offset);
...@@ -679,9 +666,6 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue, ...@@ -679,9 +666,6 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
int **dl_ch_estimates =ue->pdsch_vars[proc->thread_id][eNB_offset]->dl_ch_estimates; int **dl_ch_estimates =ue->pdsch_vars[proc->thread_id][eNB_offset]->dl_ch_estimates;
int **rxdataF=ue->common_vars.common_vars_rx_data_per_thread[proc->thread_id].rxdataF; int **rxdataF=ue->common_vars.common_vars_rx_data_per_thread[proc->thread_id].rxdataF;
if (ue->high_speed_flag == 0)
ch_offset = ue->frame_parms.ofdm_symbol_size;
else
ch_offset = ue->frame_parms.ofdm_symbol_size*symbol; ch_offset = ue->frame_parms.ofdm_symbol_size*symbol;
symbol_offset = ue->frame_parms.ofdm_symbol_size*symbol; symbol_offset = ue->frame_parms.ofdm_symbol_size*symbol;
...@@ -800,10 +784,7 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue, ...@@ -800,10 +784,7 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
dl_ch = (int16_t *)&dl_ch_estimates[p*ue->frame_parms.nb_antennas_rx+aarx][ch_offset]; dl_ch = (int16_t *)&dl_ch_estimates[p*ue->frame_parms.nb_antennas_rx+aarx][ch_offset];
memset(dl_ch,0,4*(ue->frame_parms.ofdm_symbol_size)); memset(dl_ch,0,4*(ue->frame_parms.ofdm_symbol_size));
if (ue->high_speed_flag==0) // multiply previous channel estimate by ch_est_alpha
multadd_complex_vector_real_scalar(dl_ch-(ue->frame_parms.ofdm_symbol_size<<1),
ue->ch_est_alpha,dl_ch-(ue->frame_parms.ofdm_symbol_size<<1),
1,ue->frame_parms.ofdm_symbol_size);
#ifdef DEBUG_PDSCH #ifdef DEBUG_PDSCH
printf("ch est pilot addr %p RB_DL %d\n",&pilot[0], ue->frame_parms.N_RB_DL); printf("ch est pilot addr %p RB_DL %d\n",&pilot[0], ue->frame_parms.N_RB_DL);
printf("k %d, first_carrier %d\n",k,ue->frame_parms.first_carrier_offset); printf("k %d, first_carrier %d\n",k,ue->frame_parms.first_carrier_offset);
......
openair1/PHY/NR_UE_TRANSPORT/nr_dlsch_demodulation.c
View file @ bb9c3ca1
...@@ -390,11 +390,11 @@ int nr_rx_pdsch(PHY_VARS_NR_UE *ue, ...@@ -390,11 +390,11 @@ int nr_rx_pdsch(PHY_VARS_NR_UE *ue,
#if UE_TIMING_TRACE #if UE_TIMING_TRACE
stop_meas(&ue->generic_stat_bis[proc->thread_id][slot]); stop_meas(&ue->generic_stat_bis[proc->thread_id][slot]);
#if DISABLE_LOG_X #if DISABLE_LOG_X
printf("[AbsSFN %u.%d] Slot%d Symbol %d Flag %d type %d: Pilot/Data extraction %5.2f \n", printf("[AbsSFN %u.%d] Slot%d Symbol %d type %d: Pilot/Data extraction %5.2f \n",
frame,nr_slot_rx,slot,symbol,ue->high_speed_flag,type,ue->generic_stat_bis[proc->thread_id][slot].p_time/(cpuf*1000.0)); frame,nr_slot_rx,slot,symbol,type,ue->generic_stat_bis[proc->thread_id][slot].p_time/(cpuf*1000.0));
#else #else
LOG_I(PHY, "[AbsSFN %u.%d] Slot%d Symbol %d Flag %d type %d: Pilot/Data extraction %5.2f \n", LOG_I(PHY, "[AbsSFN %u.%d] Slot%d Symbol %d type %d: Pilot/Data extraction %5.2f \n",
frame,nr_slot_rx,slot,symbol,ue->high_speed_flag,type,ue->generic_stat_bis[proc->thread_id][slot].p_time/(cpuf*1000.0)); frame,nr_slot_rx,slot,symbol,type,ue->generic_stat_bis[proc->thread_id][slot].p_time/(cpuf*1000.0));
#endif #endif
#endif #endif
......
openair1/PHY/NR_UE_TRANSPORT/nr_initial_sync.c
View file @ bb9c3ca1
...@@ -166,8 +166,7 @@ int nr_pbch_detection(UE_nr_rxtx_proc_t * proc, PHY_VARS_NR_UE *ue, int pbch_ini ...@@ -166,8 +166,7 @@ int nr_pbch_detection(UE_nr_rxtx_proc_t * proc, PHY_VARS_NR_UE *ue, int pbch_ini
frame_parms, frame_parms,
0, 0,
temp_ptr->i_ssb, temp_ptr->i_ssb,
SISO, SISO);
ue->high_speed_flag);
temp_ptr=temp_ptr->next_ssb; temp_ptr=temp_ptr->next_ssb;
} }
......
openair1/PHY/NR_UE_TRANSPORT/nr_pbch.c
View file @ bb9c3ca1
...@@ -54,7 +54,6 @@ uint16_t nr_pbch_extract(int **rxdataF, ...@@ -54,7 +54,6 @@ uint16_t nr_pbch_extract(int **rxdataF,
int **dl_ch_estimates_ext, int **dl_ch_estimates_ext,
uint32_t symbol, uint32_t symbol,
uint32_t s_offset, uint32_t s_offset,
uint32_t high_speed_flag,
NR_DL_FRAME_PARMS *frame_parms) { NR_DL_FRAME_PARMS *frame_parms) {
uint16_t rb; uint16_t rb;
uint8_t i,j,aarx; uint8_t i,j,aarx;
...@@ -138,10 +137,7 @@ uint16_t nr_pbch_extract(int **rxdataF, ...@@ -138,10 +137,7 @@ uint16_t nr_pbch_extract(int **rxdataF,
} }
} }
if (high_speed_flag == 1)
dl_ch0 = &dl_ch_estimates[aarx][((symbol+s_offset)*(frame_parms->ofdm_symbol_size))]; dl_ch0 = &dl_ch_estimates[aarx][((symbol+s_offset)*(frame_parms->ofdm_symbol_size))];
else
dl_ch0 = &dl_ch_estimates[aarx][0];
//printf("dl_ch0 addr %p\n",dl_ch0); //printf("dl_ch0 addr %p\n",dl_ch0);
dl_ch0_ext = &dl_ch_estimates_ext[aarx][symbol*20*12]; dl_ch0_ext = &dl_ch_estimates_ext[aarx][symbol*20*12];
...@@ -420,8 +416,7 @@ int nr_rx_pbch( PHY_VARS_NR_UE *ue, ...@@ -420,8 +416,7 @@ int nr_rx_pbch( PHY_VARS_NR_UE *ue,
NR_DL_FRAME_PARMS *frame_parms, NR_DL_FRAME_PARMS *frame_parms,
uint8_t gNB_id, uint8_t gNB_id,
uint8_t i_ssb, uint8_t i_ssb,
MIMO_mode_t mimo_mode, MIMO_mode_t mimo_mode) {
uint32_t high_speed_flag) {
NR_UE_COMMON *nr_ue_common_vars = &ue->common_vars; NR_UE_COMMON *nr_ue_common_vars = &ue->common_vars;
int max_h=0; int max_h=0;
...@@ -470,7 +465,6 @@ int nr_rx_pbch( PHY_VARS_NR_UE *ue, ...@@ -470,7 +465,6 @@ int nr_rx_pbch( PHY_VARS_NR_UE *ue,
nr_ue_pbch_vars->dl_ch_estimates_ext, nr_ue_pbch_vars->dl_ch_estimates_ext,
symbol, symbol,
symbol_offset, symbol_offset,
high_speed_flag,
frame_parms); frame_parms);
#ifdef DEBUG_PBCH #ifdef DEBUG_PBCH
LOG_I(PHY,"[PHY] PBCH Symbol %d ofdm size %d\n",symbol, frame_parms->ofdm_symbol_size ); LOG_I(PHY,"[PHY] PBCH Symbol %d ofdm size %d\n",symbol, frame_parms->ofdm_symbol_size );
......
openair1/PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h
View file @ bb9c3ca1
...@@ -1171,8 +1171,7 @@ int nr_rx_pbch( PHY_VARS_NR_UE *ue, ...@@ -1171,8 +1171,7 @@ int nr_rx_pbch( PHY_VARS_NR_UE *ue,
NR_DL_FRAME_PARMS *frame_parms, NR_DL_FRAME_PARMS *frame_parms,
uint8_t eNB_id, uint8_t eNB_id,
uint8_t i_ssb, uint8_t i_ssb,
MIMO_mode_t mimo_mode, MIMO_mode_t mimo_mode);
uint32_t high_speed_flag);
int nr_pbch_detection(UE_nr_rxtx_proc_t *proc, int nr_pbch_detection(UE_nr_rxtx_proc_t *proc,
PHY_VARS_NR_UE *ue, PHY_VARS_NR_UE *ue,
......
openair1/PHY/defs_nr_UE.h
View file @ bb9c3ca1
...@@ -859,9 +859,9 @@ typedef struct { ...@@ -859,9 +859,9 @@ typedef struct {
uint32_t X_u[64][839]; uint32_t X_u[64][839];
uint32_t high_speed_flag;
uint32_t perfect_ce; uint32_t perfect_ce;
int16_t ch_est_alpha;
int generate_ul_signal[NUMBER_OF_CONNECTED_gNB_MAX]; int generate_ul_signal[NUMBER_OF_CONNECTED_gNB_MAX];
UE_NR_SCAN_INFO_t scan_info[NB_BANDS_MAX]; UE_NR_SCAN_INFO_t scan_info[NB_BANDS_MAX];
......
openair1/SCHED_NR_UE/phy_procedures_nr_ue.c
View file @ bb9c3ca1
...@@ -358,8 +358,7 @@ void nr_ue_pbch_procedures(uint8_t gNB_id, ...@@ -358,8 +358,7 @@ void nr_ue_pbch_procedures(uint8_t gNB_id,
&ue->frame_parms, &ue->frame_parms,
gNB_id, gNB_id,
(ue->frame_parms.ssb_index)&7, (ue->frame_parms.ssb_index)&7,
SISO, SISO);
ue->high_speed_flag);
if (ret==0) { if (ret==0) {
...@@ -788,8 +787,6 @@ int nr_ue_pdsch_procedures(PHY_VARS_NR_UE *ue, UE_nr_rxtx_proc_t *proc, int eNB_ ...@@ -788,8 +787,6 @@ int nr_ue_pdsch_procedures(PHY_VARS_NR_UE *ue, UE_nr_rxtx_proc_t *proc, int eNB_
} }
#endif #endif
} }
if ( ue->high_speed_flag == 0 ) //for slow speed case only estimate the channel once per slot
break;
} }
} }
......
openair1/SIMULATION/NR_PHY/pbchsim.c
View file @ bb9c3ca1
...@@ -711,8 +711,7 @@ int main(int argc, char **argv) ...@@ -711,8 +711,7 @@ int main(int argc, char **argv)
frame_parms, frame_parms,
0, 0,
ssb_index%8, ssb_index%8,
SISO, SISO);
UE->high_speed_flag);
if (ret==0) { if (ret==0) {
//UE->rx_ind.rx_indication_body->mib_pdu.ssb_index; //not yet detected automatically //UE->rx_ind.rx_indication_body->mib_pdu.ssb_index; //not yet detected automatically
......
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