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Commit 613d1e8c authored by Raymond Knopp's avatar Raymond Knopp
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openair1/PHY/NR_TRANSPORT/pucch_rx.c
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......@@ -20,15 +20,15 @@
*/
/*! \file PHY/NR_TRANSPORT/pucch_rx.c
* \brief Top-level routines for decoding the PUCCH physical channel
* \author A. Mico Pereperez, Padarthi Naga Prasanth, Francesco Mani, Raymond Knopp
* \date 2020
* \version 0.2
* \company Eurecom
* \email:
* \note
* \warning
*/
* \brief Top-level routines for decoding the PUCCH physical channel
* \author A. Mico Pereperez, Padarthi Naga Prasanth, Francesco Mani, Raymond Knopp
* \date 2020
* \version 0.2
* \company Eurecom
* \email:
* \note
* \warning
*/
#include<stdio.h>
#include <string.h>
#include <math.h>
......@@ -229,12 +229,12 @@ void nr_decode_pucch0(PHY_VARS_gNB *gNB,
r_re[(12*l)+n]=((int16_t *)&rxdataF[0][(l2*frame_parms->ofdm_symbol_size)+re_offset])[0];
r_im[(12*l)+n]=((int16_t *)&rxdataF[0][(l2*frame_parms->ofdm_symbol_size)+re_offset])[1];
#ifdef DEBUG_NR_PUCCH_RX
#ifdef DEBUG_NR_PUCCH_RX
printf("\t [nr_generate_pucch0] mapping to RE \tofdm_symbol_size=%d \tN_RB_DL=%d \tfirst_carrier_offset=%d \ttxptr(%d)=(x_n(l=%d,n=%d)=(%d,%d))\n",
frame_parms->ofdm_symbol_size,frame_parms->N_RB_DL,frame_parms->first_carrier_offset,(l2*frame_parms->ofdm_symbol_size)+re_offset,
l,n,((int16_t *)&rxdataF[0][(l2*frame_parms->ofdm_symbol_size)+re_offset])[0],
((int16_t *)&rxdataF[0][(l2*frame_parms->ofdm_symbol_size)+re_offset])[1]);
#endif
#endif
re_offset++;
if (re_offset>= frame_parms->ofdm_symbol_size)
re_offset-=frame_parms->ofdm_symbol_size;
......@@ -504,13 +504,13 @@ void nr_decode_pucch1( int32_t **rxdataF,
if (l%2 == 0) { // mapping DM-RS signal according to TS38.211 subclause 6.4.1.3.1
z_dmrs_re_rx[i+n] = ((int16_t *)&rxdataF[0][re_offset])[0];
z_dmrs_im_rx[i+n] = ((int16_t *)&rxdataF[0][re_offset])[1];
// printf("%d\t%d\t%d\n",l,z_dmrs_re_rx[i+n],z_dmrs_im_rx[i+n]);
// printf("%d\t%d\t%d\n",l,z_dmrs_re_rx[i+n],z_dmrs_im_rx[i+n]);
#ifdef DEBUG_NR_PUCCH_RX
printf("\t [nr_generate_pucch1] mapping DM-RS to RE \t amp=%d \tofdm_symbol_size=%d \tN_RB_DL=%d \tfirst_carrier_offset=%d \tz_dm-rs[%d]=txptr(%d)=(x_n(l=%d,n=%d)=(%d,%d))\n",
amp,frame_parms->ofdm_symbol_size,frame_parms->N_RB_DL,frame_parms->first_carrier_offset,i+n,re_offset,
l,n,((int16_t *)&rxdataF[0][re_offset])[0],((int16_t *)&rxdataF[0][re_offset])[1]);
#endif
// printf("l=%d\ti=%d\tre_offset=%d\treceived dmrs re=%d\tim=%d\n",l,i,re_offset,z_dmrs_re_rx[i+n],z_dmrs_im_rx[i+n]);
// printf("l=%d\ti=%d\tre_offset=%d\treceived dmrs re=%d\tim=%d\n",l,i,re_offset,z_dmrs_re_rx[i+n],z_dmrs_im_rx[i+n]);
}
re_offset++;
......@@ -553,9 +553,9 @@ void nr_decode_pucch1( int32_t **rxdataF,
r_u_v_alpha_delta_dmrs_re[n] = (int16_t)(((int32_t)(amp*r_u_v_alpha_delta_dmrs_re[n]))>>15);
r_u_v_alpha_delta_dmrs_im[n] = (int16_t)(((int32_t)(amp*r_u_v_alpha_delta_dmrs_im[n]))>>15);
}
// printf("symbol=%d\tr_u_rx_re=%d\tr_u_rx_im=%d\n",l,r_u_v_alpha_delta_dmrs_re[n], r_u_v_alpha_delta_dmrs_im[n]);
// printf("symbol=%d\tr_u_rx_re=%d\tr_u_rx_im=%d\n",l,r_u_v_alpha_delta_dmrs_re[n], r_u_v_alpha_delta_dmrs_im[n]);
// PUCCH sequence = DM-RS sequence multiplied by d(0)
/* y_n_re[n] = (int16_t)(((((int32_t)(r_u_v_alpha_delta_re[n])*d_re)>>15)
/* y_n_re[n] = (int16_t)(((((int32_t)(r_u_v_alpha_delta_re[n])*d_re)>>15)
- (((int32_t)(r_u_v_alpha_delta_im[n])*d_im)>>15))); // Re part of y(n)
y_n_im[n] = (int16_t)(((((int32_t)(r_u_v_alpha_delta_re[n])*d_im)>>15)
+ (((int32_t)(r_u_v_alpha_delta_im[n])*d_re)>>15))); // Im part of y(n) */
......@@ -613,7 +613,7 @@ void nr_decode_pucch1( int32_t **rxdataF,
- (((int32_t)(table_6_3_2_4_1_2_Wi_Im[N_SF_mprime_PUCCH_1][w_index][m])*z_re_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n])>>15))>>1);
z_re_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n]=z_re_temp;
z_im_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n]=z_im_temp;
// printf("symbol=%d\tz_re_rx=%d\tz_im_rx=%d\t",l,(int)z_re_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n],(int)z_im_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n]);
// printf("symbol=%d\tz_re_rx=%d\tz_im_rx=%d\t",l,(int)z_re_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n],(int)z_im_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n]);
#ifdef DEBUG_NR_PUCCH_RX
printf("\t [nr_generate_pucch1] block-wise spread with wi(m) (mprime=%d, m=%d, n=%d) z[%d] = ((%d * %d - %d * %d), (%d * %d + %d * %d)) = (%d,%d)\n",
mprime, m, n, (mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n,
......@@ -628,7 +628,7 @@ void nr_decode_pucch1( int32_t **rxdataF,
- (((int32_t)(r_u_v_alpha_delta_im[n])*z_re_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n])>>15))>>1);
z_re_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n] = z_re_temp;
z_im_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n] = z_im_temp;
/* if(z_re_temp<0){
/* if(z_re_temp<0){
printf("\nBug detection %d\t%d\t%d\t%d\n",r_u_v_alpha_delta_re[n],z_re_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n],(((int32_t)(r_u_v_alpha_delta_re[n])*z_re_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n])>>15),(((int32_t)(r_u_v_alpha_delta_im[n])*z_im_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n])>>15));
}
printf("z1_re_rx=%d\tz1_im_rx=%d\n",(int)z_re_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n],(int)z_im_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n]); */
......@@ -647,7 +647,7 @@ void nr_decode_pucch1( int32_t **rxdataF,
- (((int32_t)(table_6_3_2_4_1_2_Wi_Im[N_SF_mprime_PUCCH_DMRS_1][w_index][m])*z_dmrs_re_rx[(mprime*12*N_SF_mprime0_PUCCH_DMRS_1)+(m*12)+n])>>15))>>1);
z_dmrs_re_rx[(mprime*12*N_SF_mprime0_PUCCH_DMRS_1)+(m*12)+n] = z_dmrs_re_temp;
z_dmrs_im_rx[(mprime*12*N_SF_mprime0_PUCCH_DMRS_1)+(m*12)+n] = z_dmrs_im_temp;
// printf("symbol=%d\tz_dmrs_re_rx=%d\tz_dmrs_im_rx=%d\t",l,(int)z_dmrs_re_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n],(int)z_dmrs_im_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n]);
// printf("symbol=%d\tz_dmrs_re_rx=%d\tz_dmrs_im_rx=%d\t",l,(int)z_dmrs_re_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n],(int)z_dmrs_im_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n]);
#ifdef DEBUG_NR_PUCCH_RX
printf("\t [nr_generate_pucch1] block-wise spread with wi(m) (mprime=%d, m=%d, n=%d) z[%d] = ((%d * %d - %d * %d), (%d * %d + %d * %d)) = (%d,%d)\n",
mprime, m, n, (mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n,
......@@ -660,12 +660,12 @@ void nr_decode_pucch1( int32_t **rxdataF,
+ (((int32_t)(r_u_v_alpha_delta_dmrs_im[n])*z_dmrs_im_rx[(mprime*12*N_SF_mprime0_PUCCH_DMRS_1)+(m*12)+n])>>15))>>1);
z_dmrs_im_temp = (int16_t)(((((int32_t)(r_u_v_alpha_delta_dmrs_re[n])*z_dmrs_im_rx[(mprime*12*N_SF_mprime0_PUCCH_DMRS_1)+(m*12)+n])>>15)
- (((int32_t)(r_u_v_alpha_delta_dmrs_im[n])*z_dmrs_re_rx[(mprime*12*N_SF_mprime0_PUCCH_DMRS_1)+(m*12)+n])>>15))>>1);
/* if(z_dmrs_re_temp<0){
/* if(z_dmrs_re_temp<0){
printf("\nBug detection %d\t%d\t%d\t%d\n",r_u_v_alpha_delta_dmrs_re[n],z_dmrs_re_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n],(((int32_t)(r_u_v_alpha_delta_dmrs_re[n])*z_dmrs_re_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n])>>15),(((int32_t)(r_u_v_alpha_delta_dmrs_im[n])*z_dmrs_im_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n])>>15));
}*/
z_dmrs_re_rx[(mprime*12*N_SF_mprime0_PUCCH_DMRS_1)+(m*12)+n] = z_dmrs_re_temp;
z_dmrs_im_rx[(mprime*12*N_SF_mprime0_PUCCH_DMRS_1)+(m*12)+n] = z_dmrs_im_temp;
// printf("z1_dmrs_re_rx=%d\tz1_dmrs_im_rx=%d\n",(int)z_dmrs_re_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n],(int)z_dmrs_im_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n]);
// printf("z1_dmrs_re_rx=%d\tz1_dmrs_im_rx=%d\n",(int)z_dmrs_re_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n],(int)z_dmrs_im_rx[(mprime*12*N_SF_mprime0_PUCCH_1)+(m*12)+n]);
/* z_dmrs_re_rx[(int)(l/2)*12+n]=z_dmrs_re_rx[(int)(l/2)*12+n]/r_u_v_alpha_delta_dmrs_re[n];
z_dmrs_im_rx[(int)(l/2)*12+n]=z_dmrs_im_rx[(int)(l/2)*12+n]/r_u_v_alpha_delta_dmrs_im[n]; */
}
......@@ -871,7 +871,7 @@ __m256i *pucch2_lut[9]={pucch2_3bit,
pucch2_10bit,
pucch2_11bit};
__m64 pucch2_polar_8bit[256*2];
__m64 pucch2_polar_4bit[16];
void init_pucch2_luts() {
......@@ -952,25 +952,17 @@ void init_pucch2_luts() {
*lut_ip1 = _mm256_insert_epi16(*lut_ip1,bit,15);
}
}
for (uint16_t i=0;i<256;i++) {
__m64 *lut_i=&pucch2_polar_8bit[i<<1];
__m64 *lut_ip1=&pucch2_polar_8bit[1+(i<<1)];
bit = (out&0x1) > 0 ? -1 : 1;
for (uint16_t i=0;i<16;i++) {
__m64 *lut_i=&pucch2_polar_4bit[i];
bit = (i&0x1) > 0 ? -1 : 1;
*lut_i = _mm_insert_pi16(*lut_i,bit,0);
bit = (out&0x2) > 0 ? -1 : 1;
*lut_ip1 = _mm_insert_pi16(*lut_ip1,bit,0);
bit = (out&0x4) > 0 ? -1 : 1;
bit = (i&0x2) > 0 ? -1 : 1;
*lut_i = _mm_insert_pi16(*lut_i,bit,1);
bit = (out&0x8) > 0 ? -1 : 1;
*lut_ip1 = _mm_insert_pi16(*lut_ip1,bit,1);
bit = (out&0x10) > 0 ? -1 : 1;
bit = (i&0x4) > 0 ? -1 : 1;
*lut_i = _mm_insert_pi16(*lut_i,bit,2);
bit = (out&0x20) > 0 ? -1 : 1;
*lut_ip1 = _mm_insert_pi16(*lut_ip1,bit,2);
bit = (out&0x40) > 0 ? -1 : 1;
bit = (i&0x8) > 0 ? -1 : 1;
*lut_i = _mm_insert_pi16(*lut_i,bit,3);
bit = (out&0x80) > 0 ? -1 : 1;
*lut_ip1 = _mm_insert_pi16(*lut_ip1,bit,3);
}
}
......@@ -1030,8 +1022,8 @@ void nr_decode_pucch2(PHY_VARS_gNB *gNB,
for (int aa=0;aa<Prx;aa++) {
r_re_ext_p=&r_re_ext[aa][8*prb];
r_im_ext_p=&r_im_ext[aa][8*prb];
rd_re_ext_p=&r_re_ext[aa][4*prb];
rd_im_ext_p=&r_im_ext[aa][4*prb];
rd_re_ext_p=&rd_re_ext[aa][4*prb];
rd_im_ext_p=&rd_im_ext[aa][4*prb];
r_re_ext_p[0]=rp[aa][0];
r_im_ext_p[0]=rp[aa][1];
......@@ -1091,6 +1083,7 @@ void nr_decode_pucch2(PHY_VARS_gNB *gNB,
#ifdef DEBUG_NR_PUCCH_RX
for (int i=0;i<8;i++) printf("Ant %d PRB %d dmrs[%d] -> (%d,%d)\n",aa,prb+(i>>2),i,rd_re_ext_p[i],rd_im_ext_p[i],i);
for (int i=0;i<16;i++) printf("Ant %d PRB %d data[%d] -> (%d,%d)\n",aa,prb+(i>>3),i,r_re_ext_p[i],r_im_ext_p[i],i);
#endif
rp[aa]+=48;
} // aa
......@@ -1121,8 +1114,8 @@ void nr_decode_pucch2(PHY_VARS_gNB *gNB,
((int16_t*)&dmrs_re)[3],((int16_t*)&dmrs_im)[3]);
#endif
for (int aa=0;aa<Prx;aa++) {
rd_re_ext_p=&r_re_ext[aa][8*group];
rd_im_ext_p=&r_im_ext[aa][8*group];
rd_re_ext_p=&rd_re_ext[aa][8*group];
rd_im_ext_p=&rd_im_ext[aa][8*group];
#ifdef DEBUG_NR_PUCCH_RX
printf("Group %d: rd ((%d,%d),(%d,%d),(%d,%d),(%d,%d))\n",
......@@ -1153,8 +1146,8 @@ void nr_decode_pucch2(PHY_VARS_gNB *gNB,
((int16_t*)&dmrs_re)[3],((int16_t*)&dmrs_im)[3]);
#endif
for (int aa=0;aa<Prx;aa++) {
rd_re_ext_p=&r_re_ext[aa][8*group];
rd_im_ext_p=&r_im_ext[aa][8*group];
rd_re_ext_p=&rd_re_ext[aa][8*group];
rd_im_ext_p=&rd_im_ext[aa][8*group];
#ifdef DEBUG_NR_PUCCH_RX
printf("Group %d: rd ((%d,%d),(%d,%d),(%d,%d),(%d,%d))\n",
group,
......@@ -1216,8 +1209,8 @@ void nr_decode_pucch2(PHY_VARS_gNB *gNB,
r_re_ext[aa][re_offset+5],r_im_ext[aa][re_offset+5],
r_re_ext[aa][re_offset+6],r_im_ext[aa][re_offset+6],
r_re_ext[aa][re_offset+7],r_im_ext[aa][re_offset+7]);
printf("prb %d: c ((%d,%d),(%d,%d),(%d,%d),(%d,%d),(%d,%d),(%d,%d),(%d,%d),(%d,%d))\n",
prb,
printf("prb %d (%x): c ((%d,%d),(%d,%d),(%d,%d),(%d,%d),(%d,%d),(%d,%d),(%d,%d),(%d,%d))\n",
prb,s,
((int16_t*)&c_re0)[0],((int16_t*)&c_im0)[0],
((int16_t*)&c_re0)[1],((int16_t*)&c_im0)[1],
((int16_t*)&c_re0)[2],((int16_t*)&c_im0)[2],
......@@ -1237,8 +1230,8 @@ void nr_decode_pucch2(PHY_VARS_gNB *gNB,
r_re_ext[aa][re_offset+13],r_im_ext[aa][re_offset+13],
r_re_ext[aa][re_offset+14],r_im_ext[aa][re_offset+14],
r_re_ext[aa][re_offset+15],r_im_ext[aa][re_offset+15]);
printf("prb %d: c ((%d,%d),(%d,%d),(%d,%d),(%d,%d),(%d,%d),(%d,%d),(%d,%d),(%d,%d))\n",
prb+1,
printf("prb %d (%x): c ((%d,%d),(%d,%d),(%d,%d),(%d,%d),(%d,%d),(%d,%d),(%d,%d),(%d,%d))\n",
prb+1,s,
((int16_t*)&c_re2)[0],((int16_t*)&c_im2)[0],
((int16_t*)&c_re2)[1],((int16_t*)&c_im2)[1],
((int16_t*)&c_re2)[2],((int16_t*)&c_im2)[2],
......@@ -1294,6 +1287,9 @@ void nr_decode_pucch2(PHY_VARS_gNB *gNB,
#endif
}
s = lte_gold_generic(&x1, &x2, 0);
#ifdef DEBUG_NR_PUCCH_RX
printf("\n");
#endif
}
AssertFatal(pucch_pdu->bit_len_csi_part1 + pucch_pdu->bit_len_csi_part2 == 0,"no csi for now\n");
AssertFatal((pucch_pdu->bit_len_harq+pucch_pdu->sr_flag > 2 ) && (pucch_pdu->bit_len_harq+pucch_pdu->sr_flag < 65),"illegal length (%d,%d)\n",pucch_pdu->bit_len_harq,pucch_pdu->sr_flag);
......@@ -1331,6 +1327,19 @@ void nr_decode_pucch2(PHY_VARS_gNB *gNB,
_mm256_mullo_epi16(pucch2_lut[nb_bit-3][(cw<<1)+1],rp_im[aa][0])),5);
prod_im[aa] = _mm256_srai_epi16(_mm256_subs_epi16(_mm256_mullo_epi16(pucch2_lut[nb_bit-3][cw<<1],rp2_im[aa][0]),
_mm256_mullo_epi16(pucch2_lut[nb_bit-3][(cw<<1)+1],rp2_re[aa][0])),5);
#ifdef DEBUG_NR_PUCCH_RX
printf("prod_re[%d] => (%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d)",aa,
((int16_t*)&prod_re[aa])[0],((int16_t*)&prod_re[aa])[1],((int16_t*)&prod_re[aa])[2],((int16_t*)&prod_re[aa])[3],
((int16_t*)&prod_re[aa])[4],((int16_t*)&prod_re[aa])[5],((int16_t*)&prod_re[aa])[6],((int16_t*)&prod_re[aa])[7],
((int16_t*)&prod_re[aa])[8],((int16_t*)&prod_re[aa])[9],((int16_t*)&prod_re[aa])[10],((int16_t*)&prod_re[aa])[11],
((int16_t*)&prod_re[aa])[12],((int16_t*)&prod_re[aa])[13],((int16_t*)&prod_re[aa])[14],((int16_t*)&prod_re[aa])[15]);
printf("prod_im[%d] => (%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d)",aa,
((int16_t*)&prod_im[aa])[0],((int16_t*)&prod_im[aa])[1],((int16_t*)&prod_im[aa])[2],((int16_t*)&prod_im[aa])[3],
((int16_t*)&prod_im[aa])[4],((int16_t*)&prod_im[aa])[5],((int16_t*)&prod_im[aa])[6],((int16_t*)&prod_im[aa])[7],
((int16_t*)&prod_im[aa])[8],((int16_t*)&prod_im[aa])[9],((int16_t*)&prod_im[aa])[10],((int16_t*)&prod_im[aa])[11],
((int16_t*)&prod_im[aa])[12],((int16_t*)&prod_im[aa])[13],((int16_t*)&prod_im[aa])[14],((int16_t*)&prod_im[aa])[15]);
#endif
prod_re[aa] = _mm256_hadds_epi16(prod_re[aa],prod_re[aa]);// 0+1
prod_im[aa] = _mm256_hadds_epi16(prod_im[aa],prod_im[aa]);
prod_re[aa] = _mm256_hadds_epi16(prod_re[aa],prod_re[aa]);// 0+1+2+3
......@@ -1395,46 +1404,57 @@ void nr_decode_pucch2(PHY_VARS_gNB *gNB,
}
__m64 prod_re[Prx2],prod_im[Prx2];
for (int cw=0;cw<256;cw++) {
for (int cw=0;cw<16;cw++) {
#ifdef DEBUG_NR_PUCCH_RX
printf("cw %d:",cw);
for (int i=0;i<32;i+=2) {
printf("%d,%d,",
((int16_t*)&pucch2_lut[nb_bit-3][cw<<1])[i>>1],
((int16_t*)&pucch2_lut[nb_bit-3][cw<<1])[1+(i>>1)]);
for (int i=0;i<4;i++) {
printf("%d,",
((int16_t*)&pucch2_polar_4bit[cw])[i>>1]);
}
printf("\n");
#endif
}
// non-coherent LLR computation on groups of 4 REs (half-PRBs)
for (in half_prb=0;half_prb<(2*pucch_pdu->prb_size);half_prb++) {
int32_t corr_re,corr_im,corr_tmp;
for (int half_prb=0;half_prb<(2*pucch_pdu->prb_size);half_prb++) {
for (int cw=0;cw<256;cw++) {
corr_tmp=0;
for (int aa=0;aa<Prx;aa++) {
prod_re[aa] = _mm_srai_pi16(_mm_adds_pi16(_mm_mullo_pi16(pucch2_polar_8bit[cw<<1],rp_re[aa][half_prb]),
_mm_mullo_pi16(pucch2_polar_8bit[(cw<<1)+1],rp_im[aa][half_prb])),5);
prod_im[aa] = _mm_srai_pi16(_mm_subs_pi16(_mm_mullo_pi16(pucch2_polar_8bit[cw<<1],rp2_im[aa][half_prb]),
_mm_mullo_pi16(pucch2_polar_8bit[(cw<<1)+1],rp2_re[aa][half_prb])),5);
prod_re[aa] = _mm_srai_pi16(_mm_adds_pi16(_mm_mullo_pi16(pucch2_polar_4bit[cw&15],rp_re[aa][half_prb]),
_mm_mullo_pi16(pucch2_polar_4bit[cw>>4],rp_im[aa][half_prb])),5);
prod_im[aa] = _mm_srai_pi16(_mm_subs_pi16(_mm_mullo_pi16(pucch2_polar_4bit[cw&15],rp2_im[aa][half_prb]),
_mm_mullo_pi16(pucch2_polar_4bit[cw>>4],rp2_re[aa][half_prb])),5);
prod_re[aa] = _mm_hadds_pi16(prod_re[aa],prod_re[aa]);// 0+1
prod_im[aa] = _mm_hadds_pi16(prod_im[aa],prod_im[aa]);
prod_re[aa] = _mm_hadds_pi16(prod_re[aa],prod_re[aa]);// 0+1+2+3
prod_im[aa] = _mm_hadds_pi16(prod_im[aa],prod_im[aa]);
LOG_D(PHY,"pucch2 half_prb %d cw %d aa %d: (%d,%d)+(%d,%d) = (%d,%d)\n",half_prb,cw,aa,
corr32_re[half_prb>>2][aa],corr32_im[half_prb>>2][aa],
corr_re = ( corr32_re[half_prb>>2][aa]/(2*nc_group_size*4/2)+((int16_t*)(&prod_re[aa]))[0]);
corr_im = ( corr32_im[half_prb>>2][aa]/(2*nc_group_size*4/2)+((int16_t*)(&prod_im[aa]))[0]);
corr_tmp += corr_re*corr_re + corr_im*corr_im;
LOG_D(PHY,"pucch2 half_prb %d cw %d (%d,%d) aa %d: (%d,%d,%d,%d,%d,%d,%d,%d)x(%d,%d,%d,%d,%d,%d,%d,%d) (%d,%d)+(%d,%d) = (%d,%d) => %d\n",
half_prb,cw,cw&15,cw>>4,aa,
((int16_t*)&pucch2_polar_4bit[cw&15])[0],((int16_t*)&pucch2_polar_4bit[cw>>4])[0],
((int16_t*)&pucch2_polar_4bit[cw&15])[1],((int16_t*)&pucch2_polar_4bit[cw>>4])[1],
((int16_t*)&pucch2_polar_4bit[cw&15])[2],((int16_t*)&pucch2_polar_4bit[cw>>4])[2],
((int16_t*)&pucch2_polar_4bit[cw&15])[3],((int16_t*)&pucch2_polar_4bit[cw>>4])[3],
((int16_t*)&rp_re[aa][half_prb])[0],((int16_t*)&rp_im[aa][half_prb])[0],
((int16_t*)&rp_re[aa][half_prb])[1],((int16_t*)&rp_im[aa][half_prb])[1],
((int16_t*)&rp_re[aa][half_prb])[2],((int16_t*)&rp_im[aa][half_prb])[2],
((int16_t*)&rp_re[aa][half_prb])[3],((int16_t*)&rp_im[aa][half_prb])[3],
corr32_re[half_prb>>2][aa]/(2*nc_group_size*4/2),corr32_im[half_prb>>2][aa]/(2*nc_group_size*4/2),
((int16_t*)(&prod_re[aa]))[0],
((int16_t*)(&prod_im[aa]))[0],
corr32_re[half_prb>>2][aa]+((int16_t*)(&prod_re[aa]))[0],
corr32_im[half_prb>>2][aa]+((int16_t*)(&prod_im[aa]))[0]);
corr_re = ( corr32_re[half_prb>>2][aa]+((int16_t*)(&prod_re[aa]))[0]);
corr_im = ( corr32_im[half_prb>>2][aa]+((int16_t*)(&prod_im[aa]))[0]);
corr_tmp += corr_re*corr_re + corr_im*corr_im;
corr_re,
corr_im,
corr_tmp);
}
int64_t corr_tmp = corr_re*corr_re + corr_im*corr_im;
}
} // half_prb
AssertFatal(1==0,"stopping here\n");
}
} // n_bit > 11
}
openair1/PHY/NR_UE_TRANSPORT/pucch_nr.c
View file @ 613d1e8c
......@@ -806,18 +806,26 @@ inline void nr_pucch2_3_4_scrambling(uint16_t M_bit,uint16_t rnti,uint16_t n_id,
// c_init=nRNTI*2^15+n_id according to TS 38.211 Subclause 6.3.2.6.1
//x2 = (rnti) + ((uint32_t)(1+nr_tti_tx)<<16)*(1+(fp->Nid_cell<<1));
x2 = ((rnti)<<15)+n_id;
s = lte_gold_generic(&x1, &x2, 1);
#ifdef DEBUG_NR_PUCCH_TX
printf("\t\t [nr_pucch2_3_4_scrambling] gold sequence s=%x\n",s);
#endif
for (i=0; i<M_bit; i++) {
uint8_t *btildep=btilde;
int M_bit2=M_bit > 31 ? 32 : (M_bit&31), M_bit3=M_bit;
for (int iprime=0;iprime<=(M_bit>>5);iprime++,btildep+=32) {
s = lte_gold_generic(&x1, &x2, (iprime==0) ? 1 : 0);
for (i=0; i<M_bit2; i++) {
c = (uint8_t)((s>>i)&1);
btilde[i] = (((B>>i)&1) ^ c);
btildep[i] = (((B>>i)&1) ^ c);
#ifdef DEBUG_NR_PUCCH_TX
//printf("\t\t\t btilde[%d]=%lx from scrambled bit %d\n",i,btilde[i],((B>>i)&1));
printf("\t\t\t btilde[%d]=%lx from unscrambled bit %d and scrambling %d (%x)\n",i+(iprime<<5),btilde[i],((B>>i)&1),c,s>>i);
#endif
}
M_bit3-=32;
M_bit2=M_bit3 > 31 ? 32 : (M_bit3&31);
}
#ifdef DEBUG_NR_PUCCH_TX
printf("\t\t [nr_pucch2_3_4_scrambling] scrambling M_bit=%d bits\n", M_bit);
......
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