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skip half creterion for PSS RBs

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This commit is contained in:
Xiwen JIANG
2015-09-29 10:35:47 +02:00
parent e5013e5327
commit d89807b6eb
2 changed files with 14 additions and 25 deletions
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openair1/PHY/LTE_ESTIMATION/lte_dl_bf_channel_estimation.c
+3 -5
View File
@@ -308,8 +308,7 @@ int lte_dl_bf_channel_estimation(PHY_VARS_UE *phy_vars_ue,
skip_half=2;
}
if ((frame_parms->frame_type == TDD) &&
(subframe==6)) { //TDD Subframe 6
if ((frame_parms->frame_type == TDD) && ((subframe==1)||(subframe==6))) { //TDD Subframe 1 and 6
if ((rb>((frame_parms->N_RB_DL>>1)-3)) && (rb<((frame_parms->N_RB_DL>>1)+3)) && (l==pss_symb) ) {
rb_alloc_ind = 0;
}
@@ -432,7 +431,7 @@ int lte_dl_bf_channel_estimation(PHY_VARS_UE *phy_vars_ue,
}
}
if ((frame_parms->frame_type == TDD) && (subframe==6)) {
if ((frame_parms->frame_type == TDD) && ((subframe==1)||(subframe==6))) {
//PSS
if ((rb>((frame_parms->N_RB_DL>>1)-3)) && (rb<((frame_parms->N_RB_DL>>1)+3)) && (l==pss_symb) ) {
rb_alloc_ind = 0;
@@ -540,8 +539,7 @@ int lte_dl_bf_channel_estimation(PHY_VARS_UE *phy_vars_ue,
skip_half=2;
}
if ((frame_parms->frame_type == TDD) &&
(subframe==6)) { //TDD Subframe 6
if ((frame_parms->frame_type == TDD) && ((subframe==1)||(subframe==6))) { //TDD Subframe 1 and 6
if ((rb>((frame_parms->N_RB_DL>>1)-3)) && (rb<((frame_parms->N_RB_DL>>1)+3)) && (l==pss_symb) ) {
rb_alloc_ind = 0;
}
openair1/PHY/LTE_TRANSPORT/dlsch_demodulation.c
+11 -20
View File
@@ -4265,18 +4265,14 @@ unsigned short dlsch_extract_rbs_TM7(int **rxdataF,
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) {
if (high_speed_flag == 1)
//dl_ch0 = &dl_bf_ch_estimates[aarx][5+(symbol*(frame_parms->ofdm_symbol_size))];
dl_ch0 = &dl_bf_ch_estimates[aarx][symbol*(frame_parms->ofdm_symbol_size)];
else
//dl_ch0 = &dl_bf_ch_estimates[aarx][5];
dl_ch0 = &dl_bf_ch_estimates[aarx][0];
dl_ch0_ext = &dl_bf_ch_estimates_ext[aarx][symbol*(frame_parms->N_RB_DL*12)];
rxF_ext = &rxdataF_ext[aarx][symbol*(frame_parms->N_RB_DL*12)];
rxF = &rxdataF[aarx][(frame_parms->first_carrier_offset + (symbol*(frame_parms->ofdm_symbol_size)))];
//printf("symbol:%d, (symbol-1)/3:%d\n",symbol,(symbol-1)/3);
//printf("symbol, rxF_uespec offset:%d\n",symbol,(symbol-1)/3*frame_parms->N_RB_DL*(3+frame_parms->Ncp));
if ((frame_parms->N_RB_DL&1) == 0) // even number of RBs
for (rb=0; rb<frame_parms->N_RB_DL; rb++) {
@@ -4367,7 +4363,6 @@ unsigned short dlsch_extract_rbs_TM7(int **rxdataF,
}
else { // Odd number of RBs
for (rb=0; rb<frame_parms->N_RB_DL>>1; rb++) {
// printf("dlch_ext %d\n",dl_ch0_ext-&dl_ch_estimates_ext[aarx][0]);
skip_half=0;
if (rb < 32)
@@ -4424,8 +4419,7 @@ unsigned short dlsch_extract_rbs_TM7(int **rxdataF,
skip_half=2;
}
if ((frame_parms->frame_type == TDD) &&
(subframe==6)) { //TDD Subframe 6
if ((frame_parms->frame_type == TDD) && ((subframe==1)||(subframe==6))) { //TDD Subframe 1 and 6
if ((rb>((frame_parms->N_RB_DL>>1)-3)) && (rb<((frame_parms->N_RB_DL>>1)+3)) && (l==pss_symb) ) {
rb_alloc_ind = 0;
}
@@ -4441,7 +4435,7 @@ unsigned short dlsch_extract_rbs_TM7(int **rxdataF,
//printf("rb %d/symbol %d pilots %d, uespec_pilots %d, (skip_half %d)\n",rb,l,pilots,uespec_pilots,skip_half);
if (pilots==0 && uespec_pilots==0) {
// printf("Extracting w/o pilots (symbol %d, rb %d, skip_half %d)\n",l,rb,skip_half);
//printf("Extracting w/o pilots (symbol %d, rb %d, skip_half %d)\n",l,rb,skip_half);
if (skip_half==1) {
memcpy(dl_ch0_ext,dl_ch0,6*sizeof(int));
@@ -4462,13 +4456,14 @@ unsigned short dlsch_extract_rbs_TM7(int **rxdataF,
} else {
memcpy(dl_ch0_ext,dl_ch0,12*sizeof(int));
for (i=0; i<12; i++)
for (i=0; i<12; i++){
rxF_ext[i]=rxF[i];
//printf("symbol %d, extract rb %d, re %d => (%d,%d)\n",symbol,rb,i,*(short *)&rxF[i],*(1+(short*)&rxF[i]));
}
dl_ch0_ext+=12;
rxF_ext+=12;
}
} else if (pilots==1 && uespec_pilots==0){
} else if (pilots==1 && uespec_pilots==0) {
// printf("Extracting with pilots (symbol %d, rb %d, skip_half %d)\n",l,rb,skip_half);
j=0;
@@ -4564,7 +4559,6 @@ unsigned short dlsch_extract_rbs_TM7(int **rxdataF,
if (i!=uespec_nushift+uespec_poffset && i!=uespec_nushift+uespec_poffset+4 && i!=(uespec_nushift+uespec_poffset+8)%12){
rxF_ext[j] = rxF[i];
dl_ch0_ext[j++] = dl_ch0[i];
//printf("symbol %d, extract rb %d, re %d => (%d,%d)\n",symbol,rb,i,*(short *)&dl_ch0[j],*(1+(short*)&dl_ch0[i]));
//printf("symbol %d, extract rb %d, re %d, j %d => (%d,%d)\n",symbol,rb,i,j-1,*(short *)&dl_ch0[j],*(1+(short*)&dl_ch0[i]));
}
} else{
@@ -4625,8 +4619,7 @@ unsigned short dlsch_extract_rbs_TM7(int **rxdataF,
}
}
if ((frame_parms->frame_type == TDD) &&
(subframe==6)) {
if ((frame_parms->frame_type == TDD) && ((subframe==1)||(subframe==6))) {
//PSS
if ((rb>((frame_parms->N_RB_DL>>1)-3)) && (rb<((frame_parms->N_RB_DL>>1)+3)) && (l==pss_symb) ) {
rb_alloc_ind = 0;
@@ -4766,21 +4759,19 @@ unsigned short dlsch_extract_rbs_TM7(int **rxdataF,
else if (((subframe==0)||(subframe==5)) && (rb==((frame_parms->N_RB_DL>>1)+3)) && (l==sss_symb))
skip_half=2;
//PSS
if (frame_parms->frame_type == FDD) {
//PSS
if (((subframe==0)||(subframe==5)) && (rb>((frame_parms->N_RB_DL>>1)-3)) && (rb<((frame_parms->N_RB_DL>>1)+3)) && (l==pss_symb) ) {
rb_alloc_ind = 0;
}
//PSS
if (((subframe==0)||(subframe==5)) && (rb==((frame_parms->N_RB_DL>>1)-3)) && (l==pss_symb))
skip_half=1;
else if (((subframe==0)||(subframe==5)) && (rb==((frame_parms->N_RB_DL>>1)+3)) && (l==pss_symb))
skip_half=2;
}
if ((frame_parms->frame_type == TDD) &&
(subframe==6)) { //TDD Subframe 6
if ((frame_parms->frame_type == TDD) && ((subframe==1)||(subframe==6))) { //TDD Subframe 1 and 6
if ((rb>((frame_parms->N_RB_DL>>1)-3)) && (rb<((frame_parms->N_RB_DL>>1)+3)) && (l==pss_symb) ) {
rb_alloc_ind = 0;
}
@@ -4814,7 +4805,7 @@ unsigned short dlsch_extract_rbs_TM7(int **rxdataF,
memcpy(dl_ch0_ext,dl_ch0+6,6*sizeof(int));
for (i=0; i<6; i++)
rxF_ext[i]=rxF[(i+6)];
rxF_ext[i]=rxF[i+6];
dl_ch0_ext+=6;
rxF_ext+=6;
@@ -4898,7 +4889,7 @@ unsigned short dlsch_extract_rbs_TM7(int **rxdataF,
if(frame_parms->Ncp==0){
for (i=0; i<6; i++) {
if (i!=uespec_nushift+uespec_poffset && i!=uespec_nushift+uespec_poffset+4 && i!=(uespec_nushift+uespec_poffset+8)%12){
rxF_ext[j]=rxF[(i+6)];
rxF_ext[j]=rxF[i+6];
dl_ch0_ext[j++]=dl_ch0[i+6];
}
}