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OpenXG-RAN
Commit 86874047 authored by Roberto Louro Magueta's avatar Roberto Louro Magueta
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Channel estimation, channel interpolation and SNR per RB computation based on... 

Channel estimation, channel interpolation and SNR per RB computation based on SRS up to 4 antenna ports
parent 997d52b7
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Showing with 241 additions and 192 deletions
openair1/PHY/INIT/nr_init.c
View file @ 86874047
......@@ -625,18 +625,24 @@ int phy_init_nr_gNB(PHY_VARS_gNB *gNB,
gNB->nr_srs_info[id]->snr_per_rb = (int8_t*)malloc16_clear(fp->N_RB_UL*sizeof(int8_t));
gNB->nr_srs_info[id]->snr = (int8_t*)malloc16_clear(sizeof(int8_t));
gNB->nr_srs_info[id]->srs_received_signal = (int32_t **)malloc16(Prx*sizeof(int32_t*));
gNB->nr_srs_info[id]->srs_ls_estimated_channel = (int32_t **)malloc16(Prx*sizeof(int32_t*));
gNB->nr_srs_info[id]->srs_estimated_channel_freq = (int32_t **)malloc16(Prx*sizeof(int32_t*));
gNB->nr_srs_info[id]->srs_estimated_channel_time = (int32_t **)malloc16(Prx*sizeof(int32_t*));
gNB->nr_srs_info[id]->srs_estimated_channel_time_shifted = (int32_t **)malloc16(Prx*sizeof(int32_t*));
gNB->nr_srs_info[id]->srs_ls_estimated_channel = (int32_t ***)malloc16(Prx*sizeof(int32_t**));
gNB->nr_srs_info[id]->srs_estimated_channel_freq = (int32_t ***)malloc16(Prx*sizeof(int32_t**));
gNB->nr_srs_info[id]->srs_estimated_channel_time = (int32_t ***)malloc16(Prx*sizeof(int32_t**));
gNB->nr_srs_info[id]->srs_estimated_channel_time_shifted = (int32_t ***)malloc16(Prx*sizeof(int32_t**));
for (i=0;i<Prx;i++){
gNB->nr_srs_info[id]->k_0_p[i] = (uint8_t*)malloc16_clear(MAX_NUM_NR_SRS_SYMBOLS*sizeof(uint8_t));
gNB->nr_srs_info[id]->srs_generated_signal[i] = (int32_t*)malloc16_clear(fp->ofdm_symbol_size*MAX_NUM_NR_SRS_SYMBOLS*sizeof(int32_t));
gNB->nr_srs_info[id]->srs_received_signal[i] = (int32_t*)malloc16_clear(fp->ofdm_symbol_size*MAX_NUM_NR_SRS_SYMBOLS*sizeof(int32_t));
gNB->nr_srs_info[id]->srs_ls_estimated_channel[i] = (int32_t*)malloc16_clear(fp->ofdm_symbol_size*MAX_NUM_NR_SRS_SYMBOLS*sizeof(int32_t));
gNB->nr_srs_info[id]->srs_estimated_channel_freq[i] = (int32_t*)malloc16_clear(fp->ofdm_symbol_size*MAX_NUM_NR_SRS_SYMBOLS*sizeof(int32_t));
gNB->nr_srs_info[id]->srs_estimated_channel_time[i] = (int32_t*)malloc16_clear(fp->ofdm_symbol_size*MAX_NUM_NR_SRS_SYMBOLS*sizeof(int32_t));
gNB->nr_srs_info[id]->srs_estimated_channel_time_shifted[i] = (int32_t*)malloc16_clear(fp->ofdm_symbol_size*MAX_NUM_NR_SRS_SYMBOLS*sizeof(int32_t));
gNB->nr_srs_info[id]->srs_ls_estimated_channel[i] = (int32_t**)malloc16_clear(Prx*sizeof(int32_t*));
gNB->nr_srs_info[id]->srs_estimated_channel_freq[i] = (int32_t**)malloc16_clear(Prx*sizeof(int32_t*));
gNB->nr_srs_info[id]->srs_estimated_channel_time[i] = (int32_t**)malloc16_clear(Prx*sizeof(int32_t*));
gNB->nr_srs_info[id]->srs_estimated_channel_time_shifted[i] = (int32_t**)malloc16_clear(Prx*sizeof(int32_t*));
for (int j = 0; j < Prx; j++) {
gNB->nr_srs_info[id]->srs_ls_estimated_channel[i][j] = (int32_t*)malloc16_clear(fp->ofdm_symbol_size*MAX_NUM_NR_SRS_SYMBOLS*sizeof(int32_t));
gNB->nr_srs_info[id]->srs_estimated_channel_freq[i][j] = (int32_t*)malloc16_clear(fp->ofdm_symbol_size*MAX_NUM_NR_SRS_SYMBOLS*sizeof(int32_t));
gNB->nr_srs_info[id]->srs_estimated_channel_time[i][j] = (int32_t*)malloc16_clear(fp->ofdm_symbol_size*MAX_NUM_NR_SRS_SYMBOLS*sizeof(int32_t));
gNB->nr_srs_info[id]->srs_estimated_channel_time_shifted[i][j] = (int32_t*)malloc16_clear(fp->ofdm_symbol_size*MAX_NUM_NR_SRS_SYMBOLS*sizeof(int32_t));
}
}
}
......
openair1/PHY/INIT/nr_init_ue.c
View file @ 86874047
......@@ -345,22 +345,10 @@ int init_nr_ue_signal(PHY_VARS_NR_UE *ue, int nb_connected_gNB)
ue->nr_srs_info = (nr_srs_info_t *)malloc16_clear(sizeof(nr_srs_info_t));
ue->nr_srs_info->sc_list = (uint16_t *) malloc16_clear(6*fp->N_RB_UL*sizeof(uint16_t));
ue->nr_srs_info->k_0_p = (uint8_t**)malloc16_clear(fp->nb_antennas_rx*sizeof(uint8_t*));
ue->nr_srs_info->noise_power = (uint32_t*)malloc16_clear(sizeof(uint32_t));
ue->nr_srs_info->srs_received_signal = (int32_t **)malloc16( fp->nb_antennas_rx*sizeof(int32_t *) );
ue->nr_srs_info->srs_ls_estimated_channel = (int32_t **)malloc16( fp->nb_antennas_rx*sizeof(int32_t *) );
ue->nr_srs_info->srs_estimated_channel_freq = (int32_t **)malloc16( fp->nb_antennas_rx*sizeof(int32_t *) );
ue->nr_srs_info->srs_estimated_channel_time = (int32_t **)malloc16( fp->nb_antennas_rx*sizeof(int32_t *) );
ue->nr_srs_info->srs_estimated_channel_time_shifted = (int32_t **)malloc16( fp->nb_antennas_rx*sizeof(int32_t *) );
for (i=0; i<fp->nb_antennas_rx; i++) {
ue->nr_srs_info->k_0_p[i] = (uint8_t*)malloc16_clear(MAX_NUM_NR_SRS_SYMBOLS*sizeof(uint8_t));
ue->nr_srs_info->srs_received_signal[i] = (int32_t *) malloc16_clear(fp->ofdm_symbol_size*MAX_NUM_NR_SRS_SYMBOLS*sizeof(int32_t));
ue->nr_srs_info->srs_ls_estimated_channel[i] = (int32_t *) malloc16_clear(fp->ofdm_symbol_size*MAX_NUM_NR_SRS_SYMBOLS*sizeof(int32_t));
ue->nr_srs_info->srs_estimated_channel_freq[i] = (int32_t *) malloc16_clear(fp->ofdm_symbol_size*MAX_NUM_NR_SRS_SYMBOLS*sizeof(int32_t));
ue->nr_srs_info->srs_estimated_channel_time[i] = (int32_t *) malloc16_clear(fp->ofdm_symbol_size*MAX_NUM_NR_SRS_SYMBOLS*sizeof(int32_t));
ue->nr_srs_info->srs_estimated_channel_time_shifted[i] = (int32_t *) malloc16_clear(fp->ofdm_symbol_size*MAX_NUM_NR_SRS_SYMBOLS*sizeof(int32_t));
}
// RACH
prach_vars[gNB_id]->prachF = (int16_t *)malloc16_clear( sizeof(int)*(7*2*sizeof(int)*(fp->ofdm_symbol_size*12)) );
prach_vars[gNB_id]->prach = (int16_t *)malloc16_clear( sizeof(int)*(7*2*sizeof(int)*(fp->ofdm_symbol_size*12)) );
......
openair1/PHY/NR_ESTIMATION/nr_ul_estimation.h
View file @ 86874047
......@@ -71,11 +71,11 @@ int nr_srs_channel_estimation(PHY_VARS_gNB *gNB,
int slot,
nfapi_nr_srs_pdu_t *srs_pdu,
nr_srs_info_t *nr_srs_info,
int32_t *srs_generated_signal,
int32_t **srs_generated_signal,
int32_t **srs_received_signal,
int32_t **srs_estimated_channel_freq,
int32_t **srs_estimated_channel_time,
int32_t **srs_estimated_channel_time_shifted,
int32_t ***srs_estimated_channel_freq,
int32_t ***srs_estimated_channel_time,
int32_t ***srs_estimated_channel_time_shifted,
uint32_t *signal_power,
uint32_t *noise_power_per_rb,
uint32_t *noise_power,
......
openair1/PHY/NR_UE_TRANSPORT/srs_modulation_nr.c
View file @ 86874047
......@@ -216,7 +216,7 @@ int generate_srs_nr(nfapi_nr_srs_pdu_t *srs_config_pdu,
uint8_t l0 = frame_parms->symbols_per_slot - 1 - l_offset; // Starting symbol position in the time domain
uint8_t n_SRS_cs_max = srs_max_number_cs[srs_config_pdu->comb_size];
uint16_t m_SRS_b = srs_bandwidth_config[C_SRS][B_SRS][0]; // Number of resource blocks
uint16_t M_sc_b_SRS = m_SRS_b * NR_NB_SC_PER_RB/K_TC; // Length of the SRS sequence
uint16_t M_sc_b_SRS = m_SRS_b * NR_NB_SC_PER_RB/K_TC; // Length of the SRS sequence
#ifdef SRS_DEBUG
LOG_I(NR_PHY,"Frame = %i, slot = %i\n", frame_number, slot_number);
......
openair1/PHY/defs_nr_common.h
View file @ 86874047
......@@ -246,10 +246,10 @@ typedef struct {
uint8_t srs_generated_signal_bits;
int32_t **srs_generated_signal;
int32_t **srs_received_signal;
int32_t **srs_ls_estimated_channel;
int32_t **srs_estimated_channel_freq;
int32_t **srs_estimated_channel_time;
int32_t **srs_estimated_channel_time_shifted;
int32_t ***srs_ls_estimated_channel;
int32_t ***srs_estimated_channel_freq;
int32_t ***srs_estimated_channel_time;
int32_t ***srs_estimated_channel_time_shifted;
uint32_t *signal_power;
uint32_t *noise_power_per_rb;
uint32_t *noise_power;
......
openair1/SCHED_NR/phy_procedures_nr_gNB.c
View file @ 86874047
......@@ -862,7 +862,7 @@ int phy_procedures_gNB_uespec_RX(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx) {
nr_srs_channel_estimation(gNB,frame_rx,slot_rx,srs_pdu,
gNB->nr_srs_info[i],
gNB->nr_srs_info[i]->srs_generated_signal[0],
gNB->nr_srs_info[i]->srs_generated_signal,
gNB->nr_srs_info[i]->srs_received_signal,
gNB->nr_srs_info[i]->srs_estimated_channel_freq,
gNB->nr_srs_info[i]->srs_estimated_channel_time,
......@@ -874,10 +874,10 @@ int phy_procedures_gNB_uespec_RX(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx) {
gNB->nr_srs_info[i]->snr);
T(T_GNB_PHY_UL_FREQ_CHANNEL_ESTIMATE, T_INT(0), T_INT(srs_pdu->rnti), T_INT(frame_rx), T_INT(0), T_INT(0),
T_BUFFER(gNB->nr_srs_info[i]->srs_estimated_channel_freq[0], gNB->frame_parms.ofdm_symbol_size*sizeof(int32_t)));
T_BUFFER(gNB->nr_srs_info[i]->srs_estimated_channel_freq[0][0], gNB->frame_parms.ofdm_symbol_size*sizeof(int32_t)));
T(T_GNB_PHY_UL_TIME_CHANNEL_ESTIMATE, T_INT(0), T_INT(srs_pdu->rnti), T_INT(frame_rx), T_INT(0), T_INT(0),
T_BUFFER(gNB->nr_srs_info[i]->srs_estimated_channel_time_shifted[0], gNB->frame_parms.ofdm_symbol_size*sizeof(int32_t)));
T_BUFFER(gNB->nr_srs_info[i]->srs_estimated_channel_time_shifted[0][0], gNB->frame_parms.ofdm_symbol_size*sizeof(int32_t)));
uint16_t num_srs = gNB->UL_INFO.srs_ind.number_of_pdus;
gNB->UL_INFO.srs_ind.pdu_list = &gNB->srs_pdu_list[0];
......@@ -885,7 +885,7 @@ int phy_procedures_gNB_uespec_RX(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx) {
gNB->UL_INFO.srs_ind.slot = slot_rx;
gNB->srs_pdu_list[num_srs].handle = srs_pdu->handle;
gNB->srs_pdu_list[num_srs].rnti = srs_pdu->rnti;
gNB->srs_pdu_list[num_srs].timing_advance = nr_est_timing_advance_srs(&gNB->frame_parms, gNB->nr_srs_info[i]->srs_estimated_channel_time);
gNB->srs_pdu_list[num_srs].timing_advance = nr_est_timing_advance_srs(&gNB->frame_parms, gNB->nr_srs_info[i]->srs_estimated_channel_time[0]);
gNB->srs_pdu_list[num_srs].num_symbols = 1<<srs_pdu->num_symbols;
gNB->srs_pdu_list[num_srs].wide_band_snr = (*gNB->nr_srs_info[i]->snr + 64)<<1;
gNB->srs_pdu_list[num_srs].num_reported_symbols = 1<<srs_pdu->num_symbols;
......
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