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updates in pdsch channel estimation (to be discussed)

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This commit is contained in:
Sakthivel Velumani
2019-10-03 18:36:07 +02:00
parent 3a5d27c591
commit 8961090d9a
1 changed files with 15 additions and 14 deletions
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openair1/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c
+15 -14
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@@ -729,6 +729,7 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
for (aarx=0; aarx<ue->frame_parms.nb_antennas_rx; aarx++) {
pil = (int16_t *)&pilot[rb_offset*((config_type==0) ? 6:4)];
k = k&(ue->frame_parms.ofdm_symbol_size-1);
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+k+nushift)];
dl_ch = (int16_t *)&dl_ch_estimates[aarx][ch_offset];
@@ -758,8 +759,8 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
dl_ch,
8);
pil+=2;
//re_offset = (re_offset+2)&(ue->frame_parms.ofdm_symbol_size-1);
re_offset = (re_offset >= ue->frame_parms.ofdm_symbol_size) ? (re_offset - ue->frame_parms.ofdm_symbol_size + 2) : (re_offset+2);
re_offset = (re_offset+2)&(ue->frame_parms.ofdm_symbol_size-1);
//re_offset = (re_offset >= ue->frame_parms.ofdm_symbol_size) ? (re_offset - ue->frame_parms.ofdm_symbol_size + 2) : (re_offset+2);
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+nushift+re_offset)];
//for (int i= 0; i<8; i++)
//printf("dl_ch addr %p %d\n", dl_ch+i, *(dl_ch+i));
@@ -774,8 +775,8 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
dl_ch,
8);
pil+=2;
//re_offset = (re_offset+2)&(ue->frame_parms.ofdm_symbol_size-1);
re_offset = (re_offset >= ue->frame_parms.ofdm_symbol_size) ? (re_offset - ue->frame_parms.ofdm_symbol_size + 2) : (re_offset+2);
re_offset = (re_offset+2)&(ue->frame_parms.ofdm_symbol_size-1);
//re_offset = (re_offset >= ue->frame_parms.ofdm_symbol_size) ? (re_offset - ue->frame_parms.ofdm_symbol_size + 2) : (re_offset+2);
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+nushift+re_offset)];
//printf("dl_ch addr %p\n",dl_ch);
@@ -793,8 +794,8 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
//printf("dl_ch addr %p %d\n", dl_ch+i, *(dl_ch+i));
pil+=2;
//re_offset = (re_offset+2)&(ue->frame_parms.ofdm_symbol_size-1);
re_offset = (re_offset >= ue->frame_parms.ofdm_symbol_size) ? (re_offset - ue->frame_parms.ofdm_symbol_size + 2) : (re_offset+2);
re_offset = (re_offset+2)&(ue->frame_parms.ofdm_symbol_size-1);
//re_offset = (re_offset >= ue->frame_parms.ofdm_symbol_size) ? (re_offset - ue->frame_parms.ofdm_symbol_size + 2) : (re_offset+2);
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+nushift+re_offset)];
dl_ch+=8;
@@ -814,8 +815,8 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
8);
pil+=2;
//re_offset = (re_offset+2)&(ue->frame_parms.ofdm_symbol_size-1);
re_offset = (re_offset >= ue->frame_parms.ofdm_symbol_size) ? (re_offset - ue->frame_parms.ofdm_symbol_size + 2) : (re_offset+2);
re_offset = (re_offset+2)&(ue->frame_parms.ofdm_symbol_size-1);
//re_offset = (re_offset >= ue->frame_parms.ofdm_symbol_size) ? (re_offset - ue->frame_parms.ofdm_symbol_size + 2) : (re_offset+2);
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);
@@ -828,8 +829,8 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
dl_ch,
8);
pil+=2;
//re_offset = (re_offset+2)&(ue->frame_parms.ofdm_symbol_size-1);
re_offset = (re_offset >= ue->frame_parms.ofdm_symbol_size) ? (re_offset - ue->frame_parms.ofdm_symbol_size + 2) : (re_offset+2);
re_offset = (re_offset+2)&(ue->frame_parms.ofdm_symbol_size-1);
//re_offset = (re_offset >= ue->frame_parms.ofdm_symbol_size) ? (re_offset - ue->frame_parms.ofdm_symbol_size + 2) : (re_offset+2);
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+nushift+re_offset)];
dl_ch+=8;
@@ -850,8 +851,8 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
//printf("dl_ch addr %p %d\n", dl_ch+i, *(dl_ch+i));
pil+=2;
//re_offset = (re_offset+2)&(ue->frame_parms.ofdm_symbol_size-1);
re_offset = (re_offset >= ue->frame_parms.ofdm_symbol_size) ? (re_offset - ue->frame_parms.ofdm_symbol_size + 2) : (re_offset+2);
re_offset = (re_offset+2)&(ue->frame_parms.ofdm_symbol_size-1);
//re_offset = (re_offset >= ue->frame_parms.ofdm_symbol_size) ? (re_offset - ue->frame_parms.ofdm_symbol_size + 2) : (re_offset+2);
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);
@@ -866,8 +867,8 @@ int nr_pdsch_channel_estimation(PHY_VARS_NR_UE *ue,
8);
pil+=2;
//re_offset = (re_offset+2)&(ue->frame_parms.ofdm_symbol_size-1);
re_offset = (re_offset >= ue->frame_parms.ofdm_symbol_size) ? (re_offset - ue->frame_parms.ofdm_symbol_size + 2) : (re_offset+2);
re_offset = (re_offset+2)&(ue->frame_parms.ofdm_symbol_size-1);
//re_offset = (re_offset >= ue->frame_parms.ofdm_symbol_size) ? (re_offset - ue->frame_parms.ofdm_symbol_size + 2) : (re_offset+2);
rxF = (int16_t *)&rxdataF[aarx][(symbol_offset+nushift+re_offset)];
dl_ch+=8;