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Commit b44bb412 authored by Robert Schmidt's avatar Robert Schmidt
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Merge remote-tracking branch 'origin/develop-UL-Rx' into integration_2023_w12

parents 6475cf21 9e6fe8cf
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cmake_targets/autotests/test_case_list.xml
View file @ b44bb412
...@@ -442,7 +442,8 @@ ...@@ -442,7 +442,8 @@
(Test21: 3GPP G-FR1-A5-13, PUSCH Type B, 40 MHz BW, 30 kHz SCS, 8 RX Antennas Requirements Test), (Test21: 3GPP G-FR1-A5-13, PUSCH Type B, 40 MHz BW, 30 kHz SCS, 8 RX Antennas Requirements Test),
(Test22: 3GPP G-FR1-A5-14, PUSCH Type B, 100 MHz BW, 30 kHz SCS, 2 RX Antennas Requirements Test), (Test22: 3GPP G-FR1-A5-14, PUSCH Type B, 100 MHz BW, 30 kHz SCS, 2 RX Antennas Requirements Test),
(Test23: 3GPP G-FR1-A5-14, PUSCH Type B, 100 MHz BW, 30 kHz SCS, 4 RX Antennas Requirements Test), (Test23: 3GPP G-FR1-A5-14, PUSCH Type B, 100 MHz BW, 30 kHz SCS, 4 RX Antennas Requirements Test),
(Test24: 3GPP G-FR1-A5-14, PUSCH Type B, 100 MHz BW, 30 kHz SCS, 8 RX Antennas Requirements Test)</desc> (Test24: 3GPP G-FR1-A5-14, PUSCH Type B, 100 MHz BW, 30 kHz SCS, 8 RX Antennas Requirements Test),
(Test25: 3GPP G-FR1-A4-27, PUSCH Type B, 40 MHz BW, 30 kHz SCS, 2 RX Antennas Requirements Test, 2 layers)</desc>
<main_exec>nr_ulsim</main_exec> <main_exec>nr_ulsim</main_exec>
<main_exec_args>-n100 -b14 -I7 -i 0,1 -g A,l,10 -t70 -u 1 -m20 -R106 -r106 -U 0,1,1,2 -z2 -s12.4 -S12.4 <main_exec_args>-n100 -b14 -I7 -i 0,1 -g A,l,10 -t70 -u 1 -m20 -R106 -r106 -U 0,1,1,2 -z2 -s12.4 -S12.4
-n100 -b14 -I7 -i 0,1 -g A,l,10 -t70 -u 1 -m20 -R106 -r106 -U 0,1,1,2 -z4 -s8.5 -S8.5 -n100 -b14 -I7 -i 0,1 -g A,l,10 -t70 -u 1 -m20 -R106 -r106 -U 0,1,1,2 -z4 -s8.5 -S8.5
...@@ -467,8 +468,9 @@ ...@@ -467,8 +468,9 @@
-n100 -b14 -I7 -i 0,1 -g A,l,10 -t70 -u 1 -m20 -R106 -r106 -U 1,1,1,2 -z8 -s5.5 -S5.5 -n100 -b14 -I7 -i 0,1 -g A,l,10 -t70 -u 1 -m20 -R106 -r106 -U 1,1,1,2 -z8 -s5.5 -S5.5
-n100 -b14 -I7 -i 0,1 -g A,l,10 -t70 -u 1 -m20 -R273 -r273 -U 1,1,1,2 -z2 -s13.1 -S13.1 -n100 -b14 -I7 -i 0,1 -g A,l,10 -t70 -u 1 -m20 -R273 -r273 -U 1,1,1,2 -z2 -s13.1 -S13.1
-n100 -b14 -I7 -i 0,1 -g A,l,10 -t70 -u 1 -m20 -R273 -r273 -U 1,1,1,2 -z4 -s9.2 -S9.2 -n100 -b14 -I7 -i 0,1 -g A,l,10 -t70 -u 1 -m20 -R273 -r273 -U 1,1,1,2 -z4 -s9.2 -S9.2
-n100 -b14 -I8 -i 0,1 -g A,l,10 -t70 -u 1 -m20 -R273 -r273 -U 1,1,1,2 -z8 -s5.9 -S5.9</main_exec_args> -n100 -b14 -I8 -i 0,1 -g A,l,10 -t70 -u 1 -m20 -R273 -r273 -U 1,1,1,2 -z8 -s5.9 -S5.9
<tags>test1 test2 test3 test4 test5 test6 test7 test8 test9 test10 test11 test12 test13 test14 test15 test16 test17 test18 test19 test20 test21 test22 test23 test24</tags> -n100 -b14 -I15 -i 0,1 -g C,l -t70 -u 1 -m16 -R106 -r106 -U 1,1,1,2 -W2 -y2 -z2 -s18.7 -S18.7</main_exec_args>
<tags>test1 test2 test3 test4 test5 test6 test7 test8 test9 test10 test11 test12 test13 test14 test15 test16 test17 test18 test19 test20 test21 test22 test23 test24 test25</tags>
<search_expr_true>PUSCH test OK</search_expr_true> <search_expr_true>PUSCH test OK</search_expr_true>
<search_expr_false>segmentation fault|assertion|exiting|fatal</search_expr_false> <search_expr_false>segmentation fault|assertion|exiting|fatal</search_expr_false>
<nruns>3</nruns> <nruns>3</nruns>
......
openair1/PHY/NR_ESTIMATION/nr_measurements_gNB.c
View file @ b44bb412
...@@ -45,9 +45,8 @@ void nr_est_timing_advance_pusch(const NR_DL_FRAME_PARMS *frame_parms, const int ...@@ -45,9 +45,8 @@ void nr_est_timing_advance_pusch(const NR_DL_FRAME_PARMS *frame_parms, const int
const int sync_pos = 0; const int sync_pos = 0;
for (int i = 0; i < frame_parms->ofdm_symbol_size; i++) { for (int i = 0; i < frame_parms->ofdm_symbol_size; i++) {
int Re = ((int16_t *)ul_ch_estimates_time)[(i << 1)]; c16_t *sample = (c16_t *)&ul_ch_estimates_time[i];
int Im = ((int16_t *)ul_ch_estimates_time)[1 + (i << 1)]; int temp = (sample->r * sample->r / 2) + (sample->i * sample->i / 2);
int temp = (Re * Re / 2) + (Im * Im / 2);
if (temp > max_val) { if (temp > max_val) {
max_pos = i; max_pos = i;
max_val = temp; max_val = temp;
......
openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
View file @ b44bb412
...@@ -102,9 +102,11 @@ __attribute__((always_inline)) inline c16_t c32x16cumulVectVectWithSteps(c16_t * ...@@ -102,9 +102,11 @@ __attribute__((always_inline)) inline c16_t c32x16cumulVectVectWithSteps(c16_t *
int get_delay_idx(int delay) { int get_delay_idx(int delay) {
int delay_idx = MAX_UL_DELAY_COMP + delay; int delay_idx = MAX_UL_DELAY_COMP + delay;
// If the measured delay is less than -MAX_UL_DELAY_COMP, a -MAX_UL_DELAY_COMP delay is compensated.
if (delay_idx < 0) { if (delay_idx < 0) {
delay_idx = 0; delay_idx = 0;
} }
// If the measured delay is greater than +MAX_UL_DELAY_COMP, a +MAX_UL_DELAY_COMP delay is compensated.
if (delay_idx > MAX_UL_DELAY_COMP<<1) { if (delay_idx > MAX_UL_DELAY_COMP<<1) {
delay_idx = MAX_UL_DELAY_COMP<<1; delay_idx = MAX_UL_DELAY_COMP<<1;
} }
......
openair1/PHY/NR_TRANSPORT/nr_ulsch_demodulation.c
View file @ b44bb412
...@@ -547,7 +547,19 @@ void nr_ulsch_channel_level(int **ul_ch_estimates_ext, ...@@ -547,7 +547,19 @@ void nr_ulsch_channel_level(int **ul_ch_estimates_ext,
#endif #endif
} }
__m128i a_mult_conjb(__m128i a, __m128i b, unsigned char output_shift)
{
__m128i mmtmpD0 = _mm_madd_epi16(b, a);
__m128i mmtmpD1 = _mm_shufflelo_epi16(b, _MM_SHUFFLE(2, 3, 0, 1));
mmtmpD1 = _mm_shufflehi_epi16(mmtmpD1, _MM_SHUFFLE(2, 3, 0, 1));
mmtmpD1 = _mm_sign_epi16(mmtmpD1, *(__m128i *)&conjugate[0]);
mmtmpD1 = _mm_madd_epi16(mmtmpD1, a);
mmtmpD0 = _mm_srai_epi32(mmtmpD0, output_shift);
mmtmpD1 = _mm_srai_epi32(mmtmpD1, output_shift);
__m128i mmtmpD2 = _mm_unpacklo_epi32(mmtmpD0, mmtmpD1);
__m128i mmtmpD3 = _mm_unpackhi_epi32(mmtmpD0, mmtmpD1);
return _mm_packs_epi32(mmtmpD2, mmtmpD3);
}
//============================================================================================== //==============================================================================================
// Pre-processing for LLR computation // Pre-processing for LLR computation
...@@ -689,71 +701,16 @@ void nr_ulsch_channel_compensation(int **rxdataF_ext, ...@@ -689,71 +701,16 @@ void nr_ulsch_channel_compensation(int **rxdataF_ext,
} }
// multiply by conjugated channel // Multiply received data by conjugated channel
mmtmpD0 = _mm_madd_epi16(ul_ch128[0],rxdataF128[0]); rxdataF_comp128[0] = a_mult_conjb(rxdataF128[0], ul_ch128[0], output_shift);
// print_ints("re",&mmtmpD0); rxdataF_comp128[1] = a_mult_conjb(rxdataF128[1], ul_ch128[1], output_shift);
rxdataF_comp128[2] = a_mult_conjb(rxdataF128[2], ul_ch128[2], output_shift);
// mmtmpD0 contains real part of 4 consecutive outputs (32-bit)
mmtmpD1 = _mm_shufflelo_epi16(ul_ch128[0],_MM_SHUFFLE(2,3,0,1));
mmtmpD1 = _mm_shufflehi_epi16(mmtmpD1,_MM_SHUFFLE(2,3,0,1));
mmtmpD1 = _mm_sign_epi16(mmtmpD1,*(__m128i*)&conjugate[0]);
// print_ints("im",&mmtmpD1);
mmtmpD1 = _mm_madd_epi16(mmtmpD1,rxdataF128[0]);
// mmtmpD1 contains imag part of 4 consecutive outputs (32-bit)
mmtmpD0 = _mm_srai_epi32(mmtmpD0,output_shift);
// print_ints("re(shift)",&mmtmpD0);
mmtmpD1 = _mm_srai_epi32(mmtmpD1,output_shift);
// print_ints("im(shift)",&mmtmpD1);
mmtmpD2 = _mm_unpacklo_epi32(mmtmpD0,mmtmpD1);
mmtmpD3 = _mm_unpackhi_epi32(mmtmpD0,mmtmpD1);
// print_ints("c0",&mmtmpD2);
// print_ints("c1",&mmtmpD3);
rxdataF_comp128[0] = _mm_packs_epi32(mmtmpD2,mmtmpD3);
// print_shorts("rx:",rxdataF128);
// print_shorts("ch:",ul_ch128);
// print_shorts("pack:",rxdataF_comp128);
// multiply by conjugated channel
mmtmpD0 = _mm_madd_epi16(ul_ch128[1],rxdataF128[1]);
// mmtmpD0 contains real part of 4 consecutive outputs (32-bit)
mmtmpD1 = _mm_shufflelo_epi16(ul_ch128[1],_MM_SHUFFLE(2,3,0,1));
mmtmpD1 = _mm_shufflehi_epi16(mmtmpD1,_MM_SHUFFLE(2,3,0,1));
mmtmpD1 = _mm_sign_epi16(mmtmpD1,*(__m128i*)conjugate);
mmtmpD1 = _mm_madd_epi16(mmtmpD1,rxdataF128[1]);
// mmtmpD1 contains imag part of 4 consecutive outputs (32-bit)
mmtmpD0 = _mm_srai_epi32(mmtmpD0,output_shift);
mmtmpD1 = _mm_srai_epi32(mmtmpD1,output_shift);
mmtmpD2 = _mm_unpacklo_epi32(mmtmpD0,mmtmpD1);
mmtmpD3 = _mm_unpackhi_epi32(mmtmpD0,mmtmpD1);
rxdataF_comp128[1] = _mm_packs_epi32(mmtmpD2,mmtmpD3);
// print_shorts("rx:",rxdataF128+1);
// print_shorts("ch:",ul_ch128+1);
// print_shorts("pack:",rxdataF_comp128+1);
// multiply by conjugated channel
mmtmpD0 = _mm_madd_epi16(ul_ch128[2],rxdataF128[2]);
// mmtmpD0 contains real part of 4 consecutive outputs (32-bit)
mmtmpD1 = _mm_shufflelo_epi16(ul_ch128[2],_MM_SHUFFLE(2,3,0,1));
mmtmpD1 = _mm_shufflehi_epi16(mmtmpD1,_MM_SHUFFLE(2,3,0,1));
mmtmpD1 = _mm_sign_epi16(mmtmpD1,*(__m128i*)conjugate);
mmtmpD1 = _mm_madd_epi16(mmtmpD1,rxdataF128[2]);
// mmtmpD1 contains imag part of 4 consecutive outputs (32-bit)
mmtmpD0 = _mm_srai_epi32(mmtmpD0,output_shift);
mmtmpD1 = _mm_srai_epi32(mmtmpD1,output_shift);
mmtmpD2 = _mm_unpacklo_epi32(mmtmpD0,mmtmpD1);
mmtmpD3 = _mm_unpackhi_epi32(mmtmpD0,mmtmpD1);
rxdataF_comp128[2] = _mm_packs_epi32(mmtmpD2,mmtmpD3);
//print_shorts("rx:",rxdataF128+2);
//print_shorts("ch:",ul_ch128+2);
//print_shorts("pack:",rxdataF_comp128+2);
ul_ch128+=3; ul_ch128 += 3;
ul_ch_mag128+=3; ul_ch_mag128 += 3;
ul_ch_mag128b+=3; ul_ch_mag128b += 3;
rxdataF128+=3; rxdataF128 += 3;
rxdataF_comp128+=3; rxdataF_comp128 += 3;
} }
} }
} }
...@@ -1375,13 +1332,14 @@ __m128i nr_ulsch_comp_muli_sum(__m128i input_x, ...@@ -1375,13 +1332,14 @@ __m128i nr_ulsch_comp_muli_sum(__m128i input_x,
//printf("det_%d = %d log2 =%d \n",k,(((int *)&det[0])[k]),log2_approx(((int *)&det[0])[k])); //printf("det_%d = %d log2 =%d \n",k,(((int *)&det[0])[k]),log2_approx(((int *)&det[0])[k]));
} }
xy_re_128 = _mm_slli_epi32(xy_re_128,5); int b = log2_approx(sum_det) - 8;
xy_re_128 = _mm_srai_epi32(xy_re_128,log2_approx(sum_det)); if (b > 0) {
xy_re_128 = _mm_slli_epi32(xy_re_128,5); xy_re_128 = _mm_srai_epi32(xy_re_128, b);
xy_im_128 = _mm_srai_epi32(xy_im_128, b);
xy_im_128 = _mm_slli_epi32(xy_im_128,5); } else {
xy_im_128 = _mm_srai_epi32(xy_im_128,log2_approx(sum_det)); xy_re_128 = _mm_slli_epi32(xy_re_128, -b);
xy_im_128 = _mm_slli_epi32(xy_im_128,5); xy_im_128 = _mm_slli_epi32(xy_im_128, -b);
}
tmp_z0 = _mm_unpacklo_epi32(xy_re_128,xy_im_128); tmp_z0 = _mm_unpacklo_epi32(xy_re_128,xy_im_128);
//print_ints("unpack lo:",&tmp_z0[0]); //print_ints("unpack lo:",&tmp_z0[0]);
...@@ -1514,16 +1472,17 @@ void nr_ulsch_construct_HhH_elements(int *conjch00_ch00, ...@@ -1514,16 +1472,17 @@ void nr_ulsch_construct_HhH_elements(int *conjch00_ch00,
* *
* *
* */ * */
uint8_t nr_ulsch_zero_forcing_rx_2layers(int **rxdataF_comp, uint8_t nr_ulsch_zero_forcing_rx_2layers(NR_DL_FRAME_PARMS *frame_parms,
int **ul_ch_mag, int **rxdataF_comp,
int **ul_ch_magb, int **ul_ch_mag,
int **ul_ch_estimates_ext, int **ul_ch_magb,
unsigned short nb_rb, int **ul_ch_estimates_ext,
unsigned char n_rx, unsigned short nb_rb,
unsigned char mod_order, unsigned char n_rx,
int shift, unsigned char mod_order,
unsigned char symbol, int shift,
int length) unsigned char symbol,
int length)
{ {
int *ch00, *ch01, *ch10, *ch11; int *ch00, *ch01, *ch10, *ch11;
int *ch20, *ch30, *ch21, *ch31; int *ch20, *ch30, *ch21, *ch31;
...@@ -1765,10 +1724,10 @@ uint8_t nr_ulsch_zero_forcing_rx_2layers(int **rxdataF_comp, ...@@ -1765,10 +1724,10 @@ uint8_t nr_ulsch_zero_forcing_rx_2layers(int **rxdataF_comp,
* *
* *
**************************************************************************/ **************************************************************************/
__m128i *rxdataF_comp128_0,*rxdataF_comp128_1,*ul_ch_mag128_0=NULL,*ul_ch_mag128b_0=NULL,*determ_fin_128;//*dl_ch_mag128_1,*dl_ch_mag128b_1,*dl_ch_mag128r_1 __m128i *rxdataF_comp128_0, *rxdataF_comp128_1, *ul_ch_mag128_0 = NULL, *ul_ch_mag128b_0 = NULL, *ul_ch_mag128_1 = NULL, *ul_ch_mag128b_1 = NULL, *determ_fin_128;
__m128i mmtmpD0,mmtmpD1,mmtmpD2,mmtmpD3; __m128i mmtmpD0, mmtmpD1, mmtmpD2, mmtmpD3;
__m128i *after_mf_a_128,*after_mf_b_128, *after_mf_c_128, *after_mf_d_128; __m128i *after_mf_a_128, *after_mf_b_128, *after_mf_c_128, *after_mf_d_128;
__m128i QAM_amp128={0},QAM_amp128b={0}; __m128i QAM_amp128 = {0}, QAM_amp128b = {0};
determ_fin_128 = (__m128i *)&determ_fin[0]; determ_fin_128 = (__m128i *)&determ_fin[0];
...@@ -1787,45 +1746,50 @@ uint8_t nr_ulsch_zero_forcing_rx_2layers(int **rxdataF_comp, ...@@ -1787,45 +1746,50 @@ uint8_t nr_ulsch_zero_forcing_rx_2layers(int **rxdataF_comp,
} else if (mod_order == 6) { } else if (mod_order == 6) {
QAM_amp128 = _mm_set1_epi16(QAM64_n1); //4/sqrt{42} QAM_amp128 = _mm_set1_epi16(QAM64_n1); //4/sqrt{42}
QAM_amp128b = _mm_set1_epi16(QAM64_n2); //2/sqrt{42} QAM_amp128b = _mm_set1_epi16(QAM64_n2); //2/sqrt{42}
} }
ul_ch_mag128_0 = (__m128i *)&ul_ch_mag[0][symbol*(off+nb_rb*12)]; ul_ch_mag128_0 = (__m128i *)&ul_ch_mag[0][symbol * (off + nb_rb * 12)];
ul_ch_mag128b_0 = (__m128i *)&ul_ch_magb[0][symbol*(off+nb_rb*12)]; ul_ch_mag128b_0 = (__m128i *)&ul_ch_magb[0][symbol * (off + nb_rb * 12)];
ul_ch_mag128_1 = (__m128i *)&ul_ch_mag[frame_parms->nb_antennas_rx][symbol * (off + nb_rb * 12)];
ul_ch_mag128b_1 = (__m128i *)&ul_ch_magb[frame_parms->nb_antennas_rx][symbol * (off + nb_rb * 12)];
} }
for (int rb=0; rb<3*nb_rb_0; rb++) { for (int rb = 0; rb < 3 * nb_rb_0; rb++) {
if (mod_order>2) {
int sum_det =0;
for (int k=0; k<4;k++) {
sum_det += ((((int *)&determ_fin_128[0])[k])>>2);
//printf("det_%d = %d\n",k,sum_det);
}
mmtmpD2 = _mm_slli_epi32(determ_fin_128[0],5);
mmtmpD2 = _mm_srai_epi32(mmtmpD2,log2_approx(sum_det));
mmtmpD2 = _mm_slli_epi32(mmtmpD2,5);
mmtmpD3 = _mm_unpacklo_epi32(mmtmpD2,mmtmpD2); // Magnitude computation
if (mod_order > 2) {
mmtmpD2 = _mm_unpackhi_epi32(mmtmpD2,mmtmpD2); int sum_det = 0;
for (int k = 0; k < 4; k++) {
sum_det += ((((int *)&determ_fin_128[0])[k]) >> 2);
}
mmtmpD2 = _mm_packs_epi32(mmtmpD3,mmtmpD2); int b = log2_approx(sum_det) - 8;
if (b > 0) {
mmtmpD2 = _mm_srai_epi32(determ_fin_128[0], b);
} else {
mmtmpD2 = _mm_slli_epi32(determ_fin_128[0], -b);
}
mmtmpD3 = _mm_unpacklo_epi32(mmtmpD2, mmtmpD2);
mmtmpD2 = _mm_unpackhi_epi32(mmtmpD2, mmtmpD2);
mmtmpD2 = _mm_packs_epi32(mmtmpD3, mmtmpD2);
// Layer 0
ul_ch_mag128_0[0] = mmtmpD2; ul_ch_mag128_0[0] = mmtmpD2;
ul_ch_mag128b_0[0] = mmtmpD2; ul_ch_mag128b_0[0] = mmtmpD2;
ul_ch_mag128_0[0] = _mm_mulhi_epi16(ul_ch_mag128_0[0], QAM_amp128);
ul_ch_mag128_0[0] = _mm_mulhi_epi16(ul_ch_mag128_0[0],QAM_amp128); ul_ch_mag128_0[0] = _mm_slli_epi16(ul_ch_mag128_0[0], 1);
ul_ch_mag128_0[0] = _mm_slli_epi16(ul_ch_mag128_0[0],1); ul_ch_mag128b_0[0] = _mm_mulhi_epi16(ul_ch_mag128b_0[0], QAM_amp128b);
ul_ch_mag128b_0[0] = _mm_slli_epi16(ul_ch_mag128b_0[0], 1);
ul_ch_mag128b_0[0] = _mm_mulhi_epi16(ul_ch_mag128b_0[0],QAM_amp128b);
ul_ch_mag128b_0[0] = _mm_slli_epi16(ul_ch_mag128b_0[0],1); // Layer 1
ul_ch_mag128_1[0] = mmtmpD2;
//print_shorts("mag layer 1:",(int16_t*)&dl_ch_mag128_0[0]); ul_ch_mag128b_1[0] = mmtmpD2;
//print_shorts("mag layer 2:",(int16_t*)&dl_ch_mag128_1[0]); ul_ch_mag128_1[0] = _mm_mulhi_epi16(ul_ch_mag128_1[0], QAM_amp128);
//print_shorts("magb layer 1:",(int16_t*)&dl_ch_mag128b_0[0]); ul_ch_mag128_1[0] = _mm_slli_epi16(ul_ch_mag128_1[0], 1);
//print_shorts("magb layer 2:",(int16_t*)&dl_ch_mag128b_1[0]); ul_ch_mag128b_1[0] = _mm_mulhi_epi16(ul_ch_mag128b_1[0], QAM_amp128b);
//print_shorts("magr layer 1:",(int16_t*)&dl_ch_mag128r_0[0]); ul_ch_mag128b_1[0] = _mm_slli_epi16(ul_ch_mag128b_1[0], 1);
//print_shorts("magr layer 2:",(int16_t*)&dl_ch_mag128r_1[0]);
} }
// multiply by channel Inv // multiply by channel Inv
//rxdataF_zf128_0 = rxdataF_comp128_0*d - b*rxdataF_comp128_1 //rxdataF_zf128_0 = rxdataF_comp128_0*d - b*rxdataF_comp128_1
//rxdataF_zf128_1 = rxdataF_comp128_1*a - c*rxdataF_comp128_0 //rxdataF_zf128_1 = rxdataF_comp128_1*a - c*rxdataF_comp128_0
...@@ -1844,12 +1808,7 @@ uint8_t nr_ulsch_zero_forcing_rx_2layers(int **rxdataF_comp, ...@@ -1844,12 +1808,7 @@ uint8_t nr_ulsch_zero_forcing_rx_2layers(int **rxdataF_comp,
determ_fin_128[0]); determ_fin_128[0]);
rxdataF_comp128_0[0] = mmtmpD0; rxdataF_comp128_0[0] = mmtmpD0;
if (mod_order > 2) { rxdataF_comp128_1[0] = mmtmpD1;
// We need to check why it is a shift of 3
rxdataF_comp128_1[0] = simde_mm_srai_epi16(mmtmpD1, 3);
} else {
rxdataF_comp128_1[0] = mmtmpD1;
}
#ifdef DEBUG_DLSCH_DEMOD #ifdef DEBUG_DLSCH_DEMOD
printf("\n Rx signal after ZF l%d rb%d\n",symbol,rb); printf("\n Rx signal after ZF l%d rb%d\n",symbol,rb);
...@@ -1858,7 +1817,9 @@ uint8_t nr_ulsch_zero_forcing_rx_2layers(int **rxdataF_comp, ...@@ -1858,7 +1817,9 @@ uint8_t nr_ulsch_zero_forcing_rx_2layers(int **rxdataF_comp,
#endif #endif
determ_fin_128 += 1; determ_fin_128 += 1;
ul_ch_mag128_0 += 1; ul_ch_mag128_0 += 1;
ul_ch_mag128b_0 += 1; ul_ch_mag128_1 += 1;
ul_ch_mag128b_0 += 1;
ul_ch_mag128b_1 += 1;
rxdataF_comp128_0 += 1; rxdataF_comp128_0 += 1;
rxdataF_comp128_1 += 1; rxdataF_comp128_1 += 1;
after_mf_a_128 += 1; after_mf_a_128 += 1;
...@@ -1964,7 +1925,13 @@ void nr_rx_pusch(PHY_VARS_gNB *gNB, ...@@ -1964,7 +1925,13 @@ void nr_rx_pusch(PHY_VARS_gNB *gNB,
int off = ((rel15_ul->rb_size&1) == 1)? 4:0; int off = ((rel15_ul->rb_size&1) == 1)? 4:0;
uint32_t rxdataF_ext_offset = 0; uint32_t rxdataF_ext_offset = 0;
uint8_t shift_ch_ext = rel15_ul->nrOfLayers > 1 ? log2_approx(max_ch >> 11) : 0; uint8_t shift_ch_ext = rel15_ul->nrOfLayers > 1 ? log2_approx(max_ch >> 11) : 0;
uint8_t ad_shift = 1 + log2_approx(frame_parms->nb_antennas_rx >> 2) + (rel15_ul->nrOfLayers == 2);
int ad_shift = 0;
if (rel15_ul->nrOfLayers == 1) {
ad_shift = 1 + log2_approx(frame_parms->nb_antennas_rx >> 2);
} else {
ad_shift = -3; // For 2-layers, we are already doing a bit shift in the nr_ulsch_zero_forcing_rx_2layers() function, so we can use more bits
}
for(uint8_t symbol = rel15_ul->start_symbol_index; symbol < (rel15_ul->start_symbol_index + rel15_ul->nr_of_symbols); symbol++) { for(uint8_t symbol = rel15_ul->start_symbol_index; symbol < (rel15_ul->start_symbol_index + rel15_ul->nr_of_symbols); symbol++) {
uint8_t dmrs_symbol_flag = (rel15_ul->ul_dmrs_symb_pos >> symbol) & 0x01; uint8_t dmrs_symbol_flag = (rel15_ul->ul_dmrs_symb_pos >> symbol) & 0x01;
...@@ -2033,7 +2000,10 @@ void nr_rx_pusch(PHY_VARS_gNB *gNB, ...@@ -2033,7 +2000,10 @@ void nr_rx_pusch(PHY_VARS_gNB *gNB,
for (aarx=0;aarx<frame_parms->nb_antennas_rx;aarx++) for (aarx=0;aarx<frame_parms->nb_antennas_rx;aarx++)
avgs = cmax(avgs,avg[aatx*frame_parms->nb_antennas_rx+aarx]); avgs = cmax(avgs,avg[aatx*frame_parms->nb_antennas_rx+aarx]);
gNB->pusch_vars[ulsch_id]->log2_maxh = (log2_approx(avgs) / 2) + ad_shift; gNB->pusch_vars[ulsch_id]->log2_maxh = (log2_approx(avgs) >> 1) + ad_shift;
if (gNB->pusch_vars[ulsch_id]->log2_maxh < 0) {
gNB->pusch_vars[ulsch_id]->log2_maxh = 0;
}
gNB->pusch_vars[ulsch_id]->cl_done = 1; gNB->pusch_vars[ulsch_id]->cl_done = 1;
} }
...@@ -2071,7 +2041,8 @@ void nr_rx_pusch(PHY_VARS_gNB *gNB, ...@@ -2071,7 +2041,8 @@ void nr_rx_pusch(PHY_VARS_gNB *gNB,
//Apply zero forcing for 2 Tx layers //Apply zero forcing for 2 Tx layers
if (rel15_ul->nrOfLayers == 2) { if (rel15_ul->nrOfLayers == 2) {
nr_ulsch_zero_forcing_rx_2layers(gNB->pusch_vars[ulsch_id]->rxdataF_comp, nr_ulsch_zero_forcing_rx_2layers(frame_parms,
gNB->pusch_vars[ulsch_id]->rxdataF_comp,
gNB->pusch_vars[ulsch_id]->ul_ch_mag0, gNB->pusch_vars[ulsch_id]->ul_ch_mag0,
gNB->pusch_vars[ulsch_id]->ul_ch_magb0, gNB->pusch_vars[ulsch_id]->ul_ch_magb0,
gNB->pusch_vars[ulsch_id]->ul_ch_estimates_ext, gNB->pusch_vars[ulsch_id]->ul_ch_estimates_ext,
......
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