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OAI UE: PRS channel estimation bug fix for prschestF rearranging in FFT format

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This commit is contained in:
Sagar Parsawar
2022-02-02 17:11:14 +01:00
parent 1c57a8618c
commit 3f2eaefc47
3 changed files with 14 additions and 11 deletions
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openair1/PHY/NR_TRANSPORT/nr_prs.c
+2 -1
View File
@@ -78,7 +78,8 @@ int nr_generate_prs(uint32_t **nr_gold_prs,
k-=frame_parms->ofdm_symbol_size;
}
}
#ifdef DEBUG_PRS_MAP
LOG_M("nr_prs.m", "prs",(int16_t *)&txdataF[prs_data->SymbolStart*frame_parms->ofdm_symbol_size],prs_data->NumPRSSymbols*frame_parms->ofdm_symbol_size, 1, 1);
#endif
return 0;
}
openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c
+11 -9
View File
@@ -332,17 +332,18 @@ int nr_prs_channel_estimation(PHY_VARS_NR_UE *ue,
return(0);
}
//reset channel pointer
ch_intrp = ch_init;
#ifdef DEBUG_PRS_CHEST
for (int re = 0; re < prs_cfg->NumRB*12; re++)
{
prs_chest[re_offset] = ch_intrp[re<<1];
prs_chest[re_offset+1] = ch_intrp[(re<<1)+1];
#ifdef DEBUG_PRS_CHEST
printf("prs_ch[%d] %d %d\n", re_offset, ch_intrp[re<<1], ch_intrp[(re<<1)+1]);
#endif
re_offset = (re_offset+2) % frame_params->ofdm_symbol_size;
printf("prs_ch[%d] %d %d\n", re, ch_intrp[re<<1], ch_intrp[(re<<1)+1]);
}
#endif
// Place PRS channel estimates in rxdataF shifted format
memcpy((int16_t *)&ue->prs_ch_estimates[rxAnt][l*frame_params->ofdm_symbol_size+re_offset], &ch_init[0], (frame_params->ofdm_symbol_size - re_offset)*sizeof(int32_t));
memcpy((int16_t *)&ue->prs_ch_estimates[rxAnt][l*frame_params->ofdm_symbol_size], &ch_init[2*(frame_params->ofdm_symbol_size - re_offset)], (prs_cfg->NumRB*12-(frame_params->ofdm_symbol_size-re_offset))*sizeof(int32_t));
// Time domain IMPULSE response
idft_size_idx_t idftsizeidx;
@@ -391,14 +392,15 @@ int nr_prs_channel_estimation(PHY_VARS_NR_UE *ue,
memcpy((int16_t *)&ue->prs_ch_estimates_time[rxAnt][l*frame_params->ofdm_symbol_size], &ch_time[frame_params->ofdm_symbol_size>>1], (frame_params->ofdm_symbol_size>>1)*sizeof(int32_t));
memcpy((int16_t *)&ue->prs_ch_estimates_time[rxAnt][l*frame_params->ofdm_symbol_size + (frame_params->ofdm_symbol_size>>1)], &ch_time[0], (frame_params->ofdm_symbol_size>>1)*sizeof(int32_t));
} //for l
#ifdef DEBUG_PRS_CHEST
LOG_M("PRSpilot.m", "prs_loc", &mod_prs[0], prs_cfg->NumRB*(12/prs_cfg->CombSize),1,1);
LOG_M("rxSigF.m","rxF",&rxdataF[rxAnt][prs_cfg->SymbolStart*frame_params->ofdm_symbol_size], prs_cfg->NumPRSSymbols*frame_params->ofdm_symbol_size,1,1);
LOG_M("prsEstF.m","prs_chestF",&ue->prs_ch_estimates[rxAnt][prs_cfg->SymbolStart*frame_params->ofdm_symbol_size], prs_cfg->NumPRSSymbols*frame_params->ofdm_symbol_size,1,1);
LOG_M("prsEstT.m","prs_chestT",&ue->prs_ch_estimates_time[rxAnt][prs_cfg->SymbolStart*frame_params->ofdm_symbol_size], prs_cfg->NumPRSSymbols*frame_params->ofdm_symbol_size,1,1);
#endif
T(T_UE_PHY_DL_CHANNEL_ESTIMATE, T_INT(0),
T_INT(proc->frame_rx), T_INT(proc->nr_slot_rx),
T_INT(0), T_BUFFER(&ue->prs_ch_estimates[rxAnt][prs_cfg->SymbolStart*frame_params->ofdm_symbol_size], frame_params->ofdm_symbol_size*sizeof(int32_t)));
T_INT(0), T_BUFFER(&ue->prs_ch_estimates[rxAnt][prs_cfg->SymbolStart*frame_params->ofdm_symbol_size], prs_cfg->NumPRSSymbols*frame_params->ofdm_symbol_size*sizeof(int32_t)));
free(ch_intrp);
free(ch_time);
openair1/SCHED_NR/phy_procedures_nr_gNB.c
+1 -1
View File
@@ -141,7 +141,7 @@ void nr_common_signal_procedures (PHY_VARS_gNB *gNB,int frame,int slot,nfapi_nr_
ssb_start_symbol,
n_hf, frame, cfg, fp);
LOG_M("txsigF0.m","txsF0", gNB->common_vars.txdataF[txdataF_offset],fp->samples_per_subframe_wCP,1,1);
//LOG_M("txsigF0.m","txsF0", gNB->common_vars.txdataF[txdataF_offset],fp->samples_per_subframe_wCP,1,1);
}