maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge branch 'hotfix-35-UE_re_extraction_sf056' into develop

Browse Source
This commit is contained in:
Florian Kaltenberger
2015-10-26 13:45:09 +01:00
parent 5c230732bc eee0a1551b
commit 94a42becee
2 changed files with 276 additions and 132 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair1/PHY/LTE_TRANSPORT/dlsch_demodulation.c
+271 -128
View File
@@ -45,7 +45,6 @@
#include "PHY/sse_intrin.h"
#ifndef USER_MODE
#define NOCYGWIN_STATIC static
#else
@@ -53,9 +52,9 @@
#endif
//#define DEBUG_PHY 1
//#define DEBUG_DLSCH_MOD 1
//#define DEBUG_DLSCH_DEMOD 1
int avg[4];
int avg[4];
// [MCS][i_mod (0,1,2) = (2,4,6)]
unsigned char offset_mumimo_llr_drange_fix=0;
@@ -3091,19 +3090,21 @@ void dlsch_alamouti(LTE_DL_FRAME_PARMS *frame_parms,
ch_mag1 = (__m128i *)&dl_ch_mag[2][jj];
ch_mag0b = (__m128i *)&dl_ch_magb[0][jj];
ch_mag1b = (__m128i *)&dl_ch_magb[2][jj];
for (rb=0; rb<nb_rb; rb++) {
for (re=0; re<((pilots==0)?12:8); re+=2) {
// Alamouti RX combining
// printf("Alamouti: symbol %d, rb %d, re %d: rxF0 (%d,%d,%d,%d), rxF1 (%d,%d,%d,%d)\n",symbol,rb,re,rxF0[0],rxF0[1],rxF0[2],rxF0[3],rxF1[0],rxF1[1],rxF1[2],rxF1[3]);
rxF0[0] = rxF0[0] + rxF1[2];
rxF0[1] = rxF0[1] - rxF1[3];
rxF0[1] = rxF0[1] - rxF1[3];
rxF0[2] = rxF0[2] - rxF1[0];
rxF0[3] = rxF0[3] + rxF1[1];
// printf("Alamouti: rxF0 after (%d,%d,%d,%d)\n",rxF0[0],rxF0[1],rxF0[2],rxF0[3]);
rxF0+=4;
rxF1+=4;
@@ -3229,12 +3230,40 @@ unsigned short dlsch_extract_rbs_single(int **rxdataF,
else
rb_alloc_ind = 0;
if (rb_alloc_ind == 1)
nb_rb++;
// For second half of RBs skip DC carrier
if (rb==(frame_parms->N_RB_DL>>1)) {
rxF = &rxdataF[aarx][(1 + (symbol*(frame_parms->ofdm_symbol_size)))];
//dl_ch0++;
}
// PBCH
if ((subframe==0) && (rb>=((frame_parms->N_RB_DL>>1)-3)) && (rb<((frame_parms->N_RB_DL>>1)+3)) && (l>=nsymb>>1) && (l<((nsymb>>1) + 4))) {
rb_alloc_ind = 0;
}
//SSS
if (((subframe==0)||(subframe==5)) && (rb>=((frame_parms->N_RB_DL>>1)-3)) && (rb<((frame_parms->N_RB_DL>>1)+3)) && (l==sss_symb) ) {
rb_alloc_ind = 0;
}
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;
}
}
if ((frame_parms->frame_type == TDD) &&
(subframe==6)) { //TDD Subframe 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;
}
}
if (rb_alloc_ind==1) {
*pmi_ext = (pmi>>((rb>>2)<<1))&3;
memcpy(dl_ch0_ext,dl_ch0,12*sizeof(int));
@@ -3272,7 +3301,7 @@ unsigned short dlsch_extract_rbs_single(int **rxdataF,
rxF_ext+=10;
}
nb_rb++;
}
dl_ch0+=12;
@@ -3281,7 +3310,9 @@ unsigned short dlsch_extract_rbs_single(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]);
#ifdef DEBUG_DLSCH_DEMOD
printf("dlch_ext %d\n",dl_ch0_ext-&dl_ch_estimates_ext[aarx][0]);
#endif
skip_half=0;
if (rb < 32)
@@ -3295,6 +3326,8 @@ unsigned short dlsch_extract_rbs_single(int **rxdataF,
else
rb_alloc_ind = 0;
if (rb_alloc_ind == 1)
nb_rb++;
// PBCH
if ((subframe==0) && (rb>((frame_parms->N_RB_DL>>1)-3)) && (rb<((frame_parms->N_RB_DL>>1)+3)) && (l>=(nsymb>>1)) && (l<((nsymb>>1) + 4))) {
@@ -3328,7 +3361,10 @@ unsigned short dlsch_extract_rbs_single(int **rxdataF,
//PSS in subframe 0/5 if FDD
if (frame_parms->frame_type == FDD) { //FDD
if (((subframe==0)||(subframe==5)) && (rb>((frame_parms->N_RB_DL>>1)-3)) && (rb<((frame_parms->N_RB_DL>>1)+3)) && (l==pss_symb) ) {
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;
}
@@ -3352,55 +3388,68 @@ unsigned short dlsch_extract_rbs_single(int **rxdataF,
if (rb_alloc_ind==1) {
// printf("rb %d/symbol %d (skip_half %d)\n",rb,l,skip_half);
#ifdef DEBUG_DLSCH_DEMOD
printf("rb %d/symbol %d (skip_half %d)\n",rb,l,skip_half);
#endif
if (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));
for (i=0; i<6; i++)
rxF_ext[i]=rxF[i];
for (i=0; i<6; i++) {
rxF_ext[i]=rxF[i];
#ifdef DEBUG_DLSCH_DEMOD
printf("extract rb %d, re %d => (%d,%d)\n",rb,i,*(short *)&rxF_ext[i],*(1+(short*)&rxF_ext[i]));
#endif
}
dl_ch0_ext+=6;
rxF_ext+=6;
} else if (skip_half==2) {
memcpy(dl_ch0_ext,dl_ch0+6,6*sizeof(int));
for (i=0; i<6; i++)
for (i=0; i<6; i++) {
rxF_ext[i]=rxF[(i+6)];
#ifdef DEBUG_DLSCH_DEMOD
printf("extract rb %d, re %d => (%d,%d)\n",rb,i,*(short *)&rxF_ext[i],*(1+(short*)&rxF_ext[i]));
#endif
}
dl_ch0_ext+=6;
rxF_ext+=6;
} 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];
#ifdef DEBUG_DLSCH_DEMOD
printf("extract rb %d, re %d => (%d,%d)\n",rb,i,*(short *)&rxF_ext[i],*(1+(short*)&rxF_ext[i]));
#endif
}
dl_ch0_ext+=12;
rxF_ext+=12;
}
} else {
// printf("Extracting with pilots (symbol %d, rb %d, skip_half %d)\n",l,rb,skip_half);
// printf("Extracting with pilots (symbol %d, rb %d, skip_half %d)\n",l,rb,skip_half);
j=0;
if (skip_half==1) {
for (i=0; i<6; i++) {
if (i!=((frame_parms->nushift+poffset)%6)) {
rxF_ext[j]=rxF[i];
// printf("extract rb %d, re %d => (%d,%d)\n",rb,i,*(short *)&rxF_ext[j],*(1+(short*)&rxF_ext[j]));
#ifdef DEBUG_DLSCH_DEMOD
printf("extract rb %d, re %d => (%d,%d)\n",rb,i,*(short *)&rxF_ext[j],*(1+(short*)&rxF_ext[j]));
#endif
dl_ch0_ext[j++]=dl_ch0[i];
}
}
rxF_ext+=5;
dl_ch0_ext+=5;
rxF_ext+=5;
} else if (skip_half==2) {
for (i=0; i<6; i++) {
if (i!=((frame_parms->nushift+poffset)%6)) {
rxF_ext[j]=rxF[(i+6)];
// printf("extract rb %d, re %d => (%d,%d)\n",rb,i,*(short *)&rxF_ext[j],*(1+(short*)&rxF_ext[j]));
#ifdef DEBUG_DLSCH_DEMOD
printf("extract rb %d, re %d => (%d,%d)\n",rb,i,*(short *)&rxF_ext[j],*(1+(short*)&rxF_ext[j]));
#endif
dl_ch0_ext[j++]=dl_ch0[i+6];
}
}
@@ -3412,7 +3461,9 @@ unsigned short dlsch_extract_rbs_single(int **rxdataF,
if ((i!=(frame_parms->nushift+poffset)) &&
(i!=((frame_parms->nushift+poffset+6)%12))) {
rxF_ext[j]=rxF[i];
// printf("extract rb %d, re %d => (%d,%d)\n",rb,i,*(short *)&rxF_ext[j],*(1+(short*)&rxF_ext[j]));
#ifdef DEBUG_DLSCH_DEMOD
printf("extract rb %d, re %d => (%d,%d)\n",rb,i,*(short *)&rxF_ext[j],*(1+(short*)&rxF_ext[j]));
#endif
dl_ch0_ext[j++]=dl_ch0[i];
}
@@ -3422,8 +3473,6 @@ unsigned short dlsch_extract_rbs_single(int **rxdataF,
rxF_ext+=10;
}
}
nb_rb++;
}
dl_ch0+=12;
@@ -3444,36 +3493,42 @@ unsigned short dlsch_extract_rbs_single(int **rxdataF,
rb_alloc_ind = 0;
if (rb_alloc_ind == 1)
nb_rb++;
// PBCH
if ((subframe==0) && (rb>=((frame_parms->N_RB_DL>>1)-3)) && (rb<((frame_parms->N_RB_DL>>1)+3)) && (l>=(nsymb>>1)) && (l<((nsymb>>1) + 4))) {
if ((subframe==0) &&
(l>=(nsymb>>1)) &&
(l<((nsymb>>1) + 4))) {
rb_alloc_ind = 0;
}
//SSS
if (((subframe==0)||(subframe==5)) && (rb>=((frame_parms->N_RB_DL>>1)-3)) && (rb<((frame_parms->N_RB_DL>>1)+3)) && (l==sss_symb) ) {
if (((subframe==0)||(subframe==5)) && (l==sss_symb) ) {
rb_alloc_ind = 0;
}
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) ) {
if (((subframe==0)||(subframe==5)) && (l==pss_symb) ) {
rb_alloc_ind = 0;
}
}
//PSS
if ((frame_parms->frame_type == TDD) &&
(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;
}
(subframe==6) &&
(l==pss_symb) ) {
rb_alloc_ind = 0;
}
// printf("dlch_ext %d\n",dl_ch0_ext-&dl_ch_estimates_ext[aarx][0]);
// printf("DC rb %d (%p)\n",rb,rxF);
if (rb_alloc_ind==1) {
// printf("rb %d/symbol %d (skip_half %d)\n",rb,l,skip_half);
#ifdef DEBUG_DLSCH_DEMOD
printf("rb %d/symbol %d (skip_half %d)\n",rb,l,skip_half);
#endif
if (pilots==0) {
for (i=0; i<6; i++) {
dl_ch0_ext[i]=dl_ch0[i];
@@ -3496,7 +3551,9 @@ unsigned short dlsch_extract_rbs_single(int **rxdataF,
if (i!=((frame_parms->nushift+poffset)%6)) {
dl_ch0_ext[j]=dl_ch0[i];
rxF_ext[j++]=rxF[i];
// printf("**extract rb %d, re %d => (%d,%d)\n",rb,i,*(short *)&rxF_ext[j-1],*(1+(short*)&rxF_ext[j-1]));
#ifdef DEBUG_DLSCH_DEMOD
printf("**extract rb %d, re %d => (%d,%d)\n",rb,i,*(short *)&rxF_ext[j-1],*(1+(short*)&rxF_ext[j-1]));
#endif
}
}
@@ -3506,7 +3563,9 @@ unsigned short dlsch_extract_rbs_single(int **rxdataF,
if (i!=((frame_parms->nushift+6+poffset)%12)) {
dl_ch0_ext[j]=dl_ch0[i];
rxF_ext[j++]=rxF[(1+i-6)];
// printf("**extract rb %d, re %d => (%d,%d)\n",rb,i,*(short *)&rxF_ext[j-1],*(1+(short*)&rxF_ext[j-1]));
#ifdef DEBUG_DLSCH_DEMOD
printf("**extract rb %d, re %d => (%d,%d)\n",rb,i,*(short *)&rxF_ext[j-1],*(1+(short*)&rxF_ext[j-1]));
#endif
}
}
@@ -3514,7 +3573,6 @@ unsigned short dlsch_extract_rbs_single(int **rxdataF,
rxF_ext+=10;
} // symbol_mod==0
nb_rb++;
} // rballoc==1
else {
rxF = &rxdataF[aarx][((symbol*(frame_parms->ofdm_symbol_size)))];
@@ -3540,7 +3598,8 @@ unsigned short dlsch_extract_rbs_single(int **rxdataF,
else
rb_alloc_ind = 0;
if (rb_alloc_ind == 1)
nb_rb++;
// PBCH
if ((subframe==0) && (rb>((frame_parms->N_RB_DL>>1)-3)) && (rb<((frame_parms->N_RB_DL>>1)+3)) && (l>=nsymb>>1) && (l<((nsymb>>1) + 4))) {
@@ -3590,7 +3649,9 @@ unsigned short dlsch_extract_rbs_single(int **rxdataF,
}
if (rb_alloc_ind==1) {
// printf("rb %d/symbol %d (skip_half %d)\n",rb,l,skip_half);
#ifdef DEBUG_DLSCH_DEMOD
printf("rb %d/symbol %d (skip_half %d)\n",rb,l,skip_half);
#endif
/*
printf("rb %d\n",rb);
for (i=0;i<12;i++)
@@ -3598,43 +3659,54 @@ unsigned short dlsch_extract_rbs_single(int **rxdataF,
printf("\n");
*/
if (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));
for (i=0; i<6; i++)
for (i=0; i<6; i++) {
rxF_ext[i]=rxF[i];
#ifdef DEBUG_DLSCH_DEMOD
printf("extract rb %d, re %d => (%d,%d)\n",rb,i,*(short *)&rxF_ext[i],*(1+(short*)&rxF_ext[i]));
#endif
}
dl_ch0_ext+=6;
rxF_ext+=6;
} else if (skip_half==2) {
memcpy(dl_ch0_ext,dl_ch0+6,6*sizeof(int));
for (i=0; i<6; i++)
for (i=0; i<6; i++) {
rxF_ext[i]=rxF[(i+6)];
#ifdef DEBUG_DLSCH_DEMOD
printf("extract rb %d, re %d => (%d,%d)\n",rb,i,*(short *)&rxF_ext[i],*(1+(short*)&rxF_ext[i]));
#endif
}
dl_ch0_ext+=6;
rxF_ext+=6;
} 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];
#ifdef DEBUG_DLSCH_DEMOD
printf("extract rb %d, re %d => (%d,%d)\n",rb,i,*(short *)&rxF_ext[i],*(1+(short*)&rxF_ext[i]));
#endif
}
dl_ch0_ext+=12;
rxF_ext+=12;
}
} else {
// printf("Extracting with pilots (symbol %d, rb %d, skip_half %d)\n",l,rb,skip_half);
// printf("Extracting with pilots (symbol %d, rb %d, skip_half %d)\n",l,rb,skip_half);
j=0;
if (skip_half==1) {
for (i=0; i<6; i++) {
if (i!=((frame_parms->nushift+poffset)%6)) {
rxF_ext[j]=rxF[i];
// printf("extract rb %d, re %d => (%d,%d)\n",rb,i,*(short *)&rxF_ext[j],*(1+(short*)&rxF_ext[j]));
#ifdef DEBUG_DLSCH_DEMOD
printf("extract rb %d, re %d => (%d,%d)\n",rb,i,*(short *)&rxF_ext[j],*(1+(short*)&rxF_ext[j]));
#endif
dl_ch0_ext[j++]=dl_ch0[i];
}
}
@@ -3645,7 +3717,9 @@ unsigned short dlsch_extract_rbs_single(int **rxdataF,
for (i=0; i<6; i++) {
if (i!=((frame_parms->nushift+poffset)%6)) {
rxF_ext[j]=rxF[(i+6)];
// printf("extract rb %d, re %d => (%d,%d)\n",rb,i,*(short *)&rxF_ext[j],*(1+(short*)&rxF_ext[j]));
#ifdef DEBUG_DLSCH_DEMOD
printf("extract rb %d, re %d => (%d,%d)\n",rb,i,*(short *)&rxF_ext[j],*(1+(short*)&rxF_ext[j]));
#endif
dl_ch0_ext[j++]=dl_ch0[i+6];
}
}
@@ -3657,7 +3731,9 @@ unsigned short dlsch_extract_rbs_single(int **rxdataF,
if ((i!=(frame_parms->nushift+poffset)) &&
(i!=((frame_parms->nushift+poffset+6)%12))) {
rxF_ext[j]=rxF[i];
// printf("extract rb %d, re %d => (%d,%d)\n",rb,i,*(short *)&rxF_ext[j],*(1+(short*)&rxF_ext[j]));
#ifdef DEBUG_DLSCH_DEMOD
printf("extract rb %d, re %d => (%d,%d)\n",rb,i,*(short *)&rxF_ext[j],*(1+(short*)&rxF_ext[j]));
#endif
dl_ch0_ext[j++]=dl_ch0[i];
}
}
@@ -3666,8 +3742,6 @@ unsigned short dlsch_extract_rbs_single(int **rxdataF,
rxF_ext+=10;
}
} // pilots=0
nb_rb++;
}
dl_ch0+=12;
@@ -3749,52 +3823,58 @@ unsigned short dlsch_extract_rbs_dual(int **rxdataF,
rb_alloc_ind = (rb_alloc[3]>>(prb-96)) & 1;
else
rb_alloc_ind = 0;
// PBCH
if ((subframe==0) &&
(prb>((frame_parms->N_RB_DL>>1)-3)) &&
(prb<((frame_parms->N_RB_DL>>1)+3)) &&
(l>=(nsymb>>1)) &&
(l<((nsymb>>1) + 4))) {
rb_alloc_ind = 0;
// printf("symbol %d / rb %d: skipping PBCH REs\n",symbol,prb);
}
//SSS
if (((subframe==0)||(subframe==5)) &&
(prb>((frame_parms->N_RB_DL>>1)-3)) &&
(prb<((frame_parms->N_RB_DL>>1)+3)) &&
(l==sss_symb) ) {
rb_alloc_ind = 0;
// printf("symbol %d / rb %d: skipping SSS REs\n",symbol,prb);
}
//PSS in subframe 0/5 if FDD
if (frame_parms->frame_type == FDD) { //FDD
if (((subframe==0)||(subframe==5)) &&
(prb>((frame_parms->N_RB_DL>>1)-3)) &&
(prb<((frame_parms->N_RB_DL>>1)+3)) &&
(l==pss_symb) ) {
rb_alloc_ind = 0;
// printf("symbol %d / rb %d: skipping PSS REs\n",symbol,prb);
}
}
if ((frame_parms->frame_type == TDD) &&
(subframe==6)) { //TDD Subframe 6
if ((prb>=((frame_parms->N_RB_DL>>1)-3)) &&
(prb<=((frame_parms->N_RB_DL>>1)+3)) &&
(l==pss_symb) ) {
rb_alloc_ind = 0;
}
}
if (rb_alloc_ind==1) { // PRB is allocated
if ((frame_parms->N_RB_DL&1) == 0) { // even number of RBs
if (rb_alloc_ind == 1)
nb_rb++;
if ((frame_parms->N_RB_DL&1) == 0) { // even number of RBs
// PBCH
if ((subframe==0) &&
(prb>=((frame_parms->N_RB_DL>>1)-3)) &&
(prb<((frame_parms->N_RB_DL>>1)+3)) &&
(l>=(nsymb>>1)) &&
(l<((nsymb>>1) + 4))) {
rb_alloc_ind = 0;
// printf("symbol %d / rb %d: skipping PBCH REs\n",symbol,prb);
}
//SSS
if (((subframe==0)||(subframe==5)) &&
(prb>=((frame_parms->N_RB_DL>>1)-3)) &&
(prb<((frame_parms->N_RB_DL>>1)+3)) &&
(l==sss_symb) ) {
rb_alloc_ind = 0;
// printf("symbol %d / rb %d: skipping SSS REs\n",symbol,prb);
}
//PSS in subframe 0/5 if FDD
if (frame_parms->frame_type == FDD) { //FDD
if (((subframe==0)||(subframe==5)) &&
(prb>=((frame_parms->N_RB_DL>>1)-3)) &&
(prb<((frame_parms->N_RB_DL>>1)+3)) &&
(l==pss_symb) ) {
rb_alloc_ind = 0;
// printf("symbol %d / rb %d: skipping PSS REs\n",symbol,prb);
}
}
if ((frame_parms->frame_type == TDD) &&
(subframe==6)) { //TDD Subframe 6
if ((prb>=((frame_parms->N_RB_DL>>1)-3)) &&
(prb<((frame_parms->N_RB_DL>>1)+3)) &&
(l==pss_symb) ) {
rb_alloc_ind = 0;
}
}
if (rb_alloc_ind==1) { // PRB is allocated
prb_off = 12*prb;
prb_off2 = 1+(12*(prb-(frame_parms->N_RB_DL>>1)));
@@ -3839,12 +3919,55 @@ unsigned short dlsch_extract_rbs_dual(int **rxdataF,
rxF_ext+=8;
} // pilots==1
nb_rb++;
}
} else { // Odd number of RBs
} else { // Odd number of RBs
// PBCH
if ((subframe==0) &&
(prb>((frame_parms->N_RB_DL>>1)-3)) &&
(prb<((frame_parms->N_RB_DL>>1)+3)) &&
(l>=(nsymb>>1)) &&
(l<((nsymb>>1) + 4))) {
rb_alloc_ind = 0;
// printf("symbol %d / rb %d: skipping PBCH REs\n",symbol,prb);
}
//SSS
if (((subframe==0)||(subframe==5)) &&
(prb>((frame_parms->N_RB_DL>>1)-3)) &&
(prb<((frame_parms->N_RB_DL>>1)+3)) &&
(l==sss_symb) ) {
rb_alloc_ind = 0;
// printf("symbol %d / rb %d: skipping SSS REs\n",symbol,prb);
}
//PSS in subframe 0/5 if FDD
if (frame_parms->frame_type == FDD) { //FDD
if (((subframe==0)||(subframe==5)) &&
(prb>((frame_parms->N_RB_DL>>1)-3)) &&
(prb<((frame_parms->N_RB_DL>>1)+3)) &&
(l==pss_symb) ) {
rb_alloc_ind = 0;
// printf("symbol %d / rb %d: skipping PSS REs\n",symbol,prb);
}
}
if ((frame_parms->frame_type == TDD) &&
((subframe==1) || (subframe==6))) { //TDD Subframe 1-6
if ((prb>((frame_parms->N_RB_DL>>1)-3)) &&
(prb<((frame_parms->N_RB_DL>>1)+3)) &&
(l==pss_symb) ) {
rb_alloc_ind = 0;
}
}
if (rb_alloc_ind == 1) {
skip_half=0;
//Check if we have to drop half a PRB due to PSS/SSS/PBCH
// skip_half == 0 means full PRB
// skip_half == 1 means first half is used (leftmost half-PRB from PSS/SSS/PBCH)
@@ -3875,13 +3998,12 @@ unsigned short dlsch_extract_rbs_dual(int **rxdataF,
if (((frame_parms->frame_type == FDD) &&
(((subframe==0)||(subframe==5)))) || //FDD Subframes 0,5
((frame_parms->frame_type == TDD) &&
(((subframe==2) || (subframe==6))))) { //TDD Subframes 2,6
(((subframe==1) || (subframe==6))))) { //TDD Subframes 1,6
if ((prb==((frame_parms->N_RB_DL>>1)-3)) &&
(l==pss_symb))
skip_half=1;
else if (((subframe==0)||(subframe==5)) &&
(prb==((frame_parms->N_RB_DL>>1)+3)) &&
else if ((prb==((frame_parms->N_RB_DL>>1)+3)) &&
(l==pss_symb))
skip_half=2;
}
@@ -3901,9 +4023,9 @@ unsigned short dlsch_extract_rbs_dual(int **rxdataF,
rxF = &rxdataF[aarx][prb_off2+
(symbol*(frame_parms->ofdm_symbol_size))];
}
// printf("symbol %d / rb %d: alloc %d skip_half %d (rxF %p, rxF_ext %p) prb_off (%d,%d)\n",symbol,prb,rb_alloc_ind,skip_half,rxF,rxF_ext,prb_off,prb_off2);
#ifdef DEBUG_DLSCH_DEMOD
printf("symbol %d / rb %d: alloc %d skip_half %d (rxF %p, rxF_ext %p) prb_off (%d,%d)\n",symbol,prb,rb_alloc_ind,skip_half,rxF,rxF_ext,prb_off,prb_off2);
#endif
*pmi_loc = (pmi>>((prb>>2)<<1))&3;
// printf("symbol_mod %d (pilots %d) rb %d, sb %d, pmi %d (pmi_loc %p,rxF %p, ch00 %p, ch01 %p, rxF_ext %p dl_ch0_ext %p dl_ch1_ext %p)\n",symbol_mod,pilots,rb,rb>>2,*pmi_loc,pmi_loc,rxF,dl_ch0, dl_ch1, rxF_ext,dl_ch0_ext,dl_ch1_ext);
@@ -3915,6 +4037,10 @@ unsigned short dlsch_extract_rbs_dual(int **rxdataF,
memcpy(dl_ch0_ext,dl_ch0p,6*sizeof(int32_t));
memcpy(dl_ch1_ext,dl_ch1p,6*sizeof(int32_t));
memcpy(rxF_ext,rxF,6*sizeof(int32_t));
#ifdef DEBUG_DLSCH_DEMOD
for (i=0;i<6;i++)
printf("extract rb %d, re %d => (%d,%d)\n",prb,i,*(short *)&rxF_ext[i],*(1+(short*)&rxF_ext[i]));
#endif
dl_ch0_ext+=6;
dl_ch1_ext+=6;
rxF_ext+=6;
@@ -3922,6 +4048,10 @@ unsigned short dlsch_extract_rbs_dual(int **rxdataF,
memcpy(dl_ch0_ext,dl_ch0p+6,6*sizeof(int32_t));
memcpy(dl_ch1_ext,dl_ch1p+6,6*sizeof(int32_t));
memcpy(rxF_ext,rxF+6,6*sizeof(int32_t));
#ifdef DEBUG_DLSCH_DEMOD
for (i=0;i<6;i++)
printf("extract rb %d, re %d => (%d,%d)\n",prb,i,*(short *)&rxF_ext[i],*(1+(short*)&rxF_ext[i]));
#endif
dl_ch0_ext+=6;
dl_ch1_ext+=6;
rxF_ext+=6;
@@ -3929,8 +4059,10 @@ unsigned short dlsch_extract_rbs_dual(int **rxdataF,
memcpy(dl_ch0_ext,dl_ch0p,12*sizeof(int32_t));
memcpy(dl_ch1_ext,dl_ch1p,12*sizeof(int32_t));
memcpy(rxF_ext,rxF,12*sizeof(int32_t));
#ifdef DEBUG_DLSCH_DEMOD
for (i=0;i<12;i++)
// printf("extract rb %d, re %d => (%d,%d)\n",prb,i,*(short *)&rxF_ext[i],*(1+(short*)&rxF_ext[i]));
printf("extract rb %d, re %d => (%d,%d)\n",prb,i,*(short *)&rxF_ext[i],*(1+(short*)&rxF_ext[i]));
#endif
dl_ch0_ext+=12;
dl_ch1_ext+=12;
rxF_ext+=12;
@@ -3943,7 +4075,9 @@ unsigned short dlsch_extract_rbs_dual(int **rxdataF,
if ((i!=frame_parms->nushift) &&
(i!=((frame_parms->nushift+3)%6))) {
rxF_ext[j]=rxF[i];
// printf("(pilots,skip1)extract rb %d, re %d => (%d,%d)\n",prb,i,*(short *)&rxF_ext[j],*(1+(short*)&rxF_ext[j]));
#ifdef DEBUG_DLSCH_DEMOD
printf("(pilots,skip1)extract rb %d, re %d (%d)=> (%d,%d)\n",prb,i,j,*(short *)&rxF_ext[j],*(1+(short*)&rxF_ext[j]));
#endif
dl_ch0_ext[j]=dl_ch0p[i];
dl_ch1_ext[j++]=dl_ch1p[i];
}
@@ -3956,15 +4090,17 @@ unsigned short dlsch_extract_rbs_dual(int **rxdataF,
if ((i!=frame_parms->nushift) &&
(i!=((frame_parms->nushift+3)%6))) {
rxF_ext[j]=rxF[(i+6)];
// printf("(pilots,skip2)extract rb %d, re %d => (%d,%d)\n",prb,i,*(short *)&rxF_ext[j],*(1+(short*)&rxF_ext[j]));
#ifdef DEBUG_DLSCH_DEMOD
printf("(pilots,skip2)extract rb %d, re %d (%d) => (%d,%d)\n",prb,i,j,*(short *)&rxF_ext[j],*(1+(short*)&rxF_ext[j]));
#endif
dl_ch0_ext[j]=dl_ch0p[i+6];
dl_ch1_ext[j++]=dl_ch1p[i+6];
}
dl_ch0_ext+=4;
dl_ch1_ext+=4;
rxF_ext+=4;
}
dl_ch0_ext+=4;
dl_ch1_ext+=4;
rxF_ext+=4;
} else { //skip_half==0
for (i=0; i<12; i++) {
if ((i!=frame_parms->nushift) &&
@@ -3972,7 +4108,9 @@ unsigned short dlsch_extract_rbs_dual(int **rxdataF,
(i!=frame_parms->nushift+6) &&
(i!=((frame_parms->nushift+9)%12))) {
rxF_ext[j]=rxF[i];
// printf("(pilots)extract rb %d, re %d => (%d,%d)\n",prb,i,*(short *)&rxF_ext[j],*(1+(short*)&rxF_ext[j]));
#ifdef DEBUG_DLSCH_DEMOD
printf("(pilots)extract rb %d, re %d => (%d,%d)\n",prb,i,*(short *)&rxF_ext[j],*(1+(short*)&rxF_ext[j]));
#endif
dl_ch0_ext[j] =dl_ch0p[i];
dl_ch1_ext[j++]=dl_ch1p[i];
}
@@ -3982,31 +4120,33 @@ unsigned short dlsch_extract_rbs_dual(int **rxdataF,
rxF_ext+=8;
} //skip_half==0
} //pilots==1
nb_rb++;
} else { // Do middle RB (around DC)
if (pilots==0) {
memcpy(dl_ch0_ext,dl_ch0p,6*sizeof(int32_t));
memcpy(dl_ch1_ext,dl_ch1p,6*sizeof(int32_t));
memcpy(rxF_ext,rxF,6*sizeof(int32_t));
/*
#ifdef DEBUG_DLSCH_DEMOD
for (i=0; i<6; i++) {
printf("extract rb %d, re %d => (%d,%d)\n",prb,i,*(short *)&rxF_ext[i],*(1+(short*)&rxF_ext[i]));
}*/
}
#endif
rxF_ext+=6;
dl_ch0_ext+=6;
dl_ch1_ext+=6;
dl_ch0p+=6;
dl_ch1p+=6;
rxF = &rxdataF[aarx][((symbol*(frame_parms->ofdm_symbol_size)))];
rxF = &rxdataF[aarx][1+((symbol*(frame_parms->ofdm_symbol_size)))];
memcpy(dl_ch0_ext,dl_ch0p,6*sizeof(int32_t));
memcpy(dl_ch1_ext,dl_ch1p,6*sizeof(int32_t));
memcpy(rxF_ext,rxF,6*sizeof(int32_t));
/*for (i=0; i<6; i++) {
#ifdef DEBUG_DLSCH_DEMOD
for (i=0; i<6; i++) {
printf("extract rb %d, re %d => (%d,%d)\n",prb,i,*(short *)&rxF_ext[i],*(1+(short*)&rxF_ext[i]));
}*/
}
#endif
rxF_ext+=6;
dl_ch0_ext+=6;
dl_ch1_ext+=6;
@@ -4019,18 +4159,22 @@ unsigned short dlsch_extract_rbs_dual(int **rxdataF,
dl_ch0_ext[j]=dl_ch0p[i];
dl_ch1_ext[j]=dl_ch1p[i];
rxF_ext[j++]=rxF[i];
//printf("(pilots)extract rb %d, re %d => (%d,%d)\n",prb,i,*(short *)&rxF[i],*(1+(short*)&rxF[i]));
#ifdef DEBUG_DLSCH_DEMOD
printf("(pilots)extract rb %d, re %d (%d) => (%d,%d)\n",prb,i,j,*(short *)&rxF[i],*(1+(short*)&rxF[i]));
#endif
}
}
rxF = &rxdataF[aarx][symbol*(frame_parms->ofdm_symbol_size)];
rxF = &rxdataF[aarx][1+symbol*(frame_parms->ofdm_symbol_size)];
for (; i<12; i++) {
if ((i!=((frame_parms->nushift+6)%12)) &&
(i!=((frame_parms->nushift+9)%12))) {
dl_ch0_ext[j]=dl_ch0p[i];
dl_ch1_ext[j]=dl_ch1p[i];
rxF_ext[j++]=rxF[(1+i-6)];
//printf("(pilots)extract rb %d, re %d => (%d,%d)\n",prb,i,*(short *)&rxF[1+i-6],*(1+(short*)&rxF[1+i-6]));
rxF_ext[j++]=rxF[i-6];
#ifdef DEBUG_DLSCH_DEMOD
printf("(pilots)extract rb %d, re %d (%d) => (%d,%d)\n",prb,i,j,*(short *)&rxF[1+i-6],*(1+(short*)&rxF[1+i-6]));
#endif
}
}
@@ -4038,7 +4182,6 @@ unsigned short dlsch_extract_rbs_dual(int **rxdataF,
dl_ch1_ext+=8;
rxF_ext+=8;
} //pilots==1
nb_rb++;
} // if Middle PRB
} // if odd PRB
} // if rballoc==1
@@ -4126,7 +4269,7 @@ void dump_dlsch2(PHY_VARS_UE *phy_vars_ue,uint8_t eNB_id,uint16_t coded_bits_per
#endif
#ifdef DEBUG_DLSCH_DEMOD
/*
void print_bytes(char *s,__m128i *x)
{
@@ -4164,5 +4307,5 @@ void print_ints(char *s,__m128i *x)
printf("%s : %d,%d,%d,%d\n",s,
tempb[0],tempb[1],tempb[2],tempb[3]);
}
}*/
#endif
openair1/PHY/LTE_TRANSPORT/dlsch_llr_computation.c
+5 -4
View File
@@ -662,16 +662,17 @@ int dlsch_qpsk_llr(LTE_DL_FRAME_PARMS *frame_parms,
if ((symbol_mod==0) || (symbol_mod==(4-frame_parms->Ncp))) {
if (frame_parms->mode1_flag==0)
len = (nb_rb*8);// - (2*pbch_pss_sss_adjust/3);
len = (nb_rb*8)- (2*pbch_pss_sss_adjust/3);
else
len = (nb_rb*10);// - (5*pbch_pss_sss_adjust/6);
len = (nb_rb*10) - (5*pbch_pss_sss_adjust/6);
} else {
len = (nb_rb*12);// - pbch_pss_sss_adjust;
len = (nb_rb*12) - pbch_pss_sss_adjust;
}
// printf("dlsch_qpsk_llr: symbol %d,nb_rb %d, len %d,pbch_pss_sss_adjust %d\n",symbol,nb_rb,len,pbch_pss_sss_adjust);
// printf("dlsch_qpsk_llr: symbol %d,nb_rb %d, len %d,pbch_pss_sss_adjust %d\n",symbol,nb_rb,len,pbch_pss_sss_adjust);
for (i=0; i<len; i++) {
*llr32 = *rxF;
// printf("llr %d : (%d,%d)\n",i,((int16_t*)llr32)[0],((int16_t*)llr32)[1]);
rxF++;
llr32++;
}