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Adjusting power level for TM4,5,6.

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Before that the scaling was aplied in precoder.
Now it is done in sqrt_rho_a and sqrt_rho_b.
For TM4 there still remains 1/sqrt(2) instead of
1/2 both at the transmitter and receievr side.
This commit is contained in:
Elena_Lukashova
2017-02-24 23:35:30 +01:00
parent b81ee87f4d
commit 2ef3dd8ff7
2 changed files with 103 additions and 69 deletions
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openair1/PHY/LTE_TRANSPORT/dlsch_demodulation.c
+54 -36
View File
@@ -107,7 +107,7 @@ int rx_pdsch(PHY_VARS_UE *ue,
unsigned char aatx,aarx;
unsigned short nb_rb, round;
unsigned short nb_rb = 0, round;
int avgs, rb;
LTE_DL_UE_HARQ_t *dlsch0_harq,*dlsch1_harq = 0;
@@ -163,6 +163,10 @@ int rx_pdsch(PHY_VARS_UE *ue,
dlsch1_harq = NULL;
codeword_TB0 = -1;
}
else {
LOG_E(PHY,"[UE][FATAL] Frame %d subframe %d: no active DLSCH\n",ue->proc.proc_rxtx[0].frame_rx,subframe);
return(-1);
}
beamforming_mode = ue->transmission_mode[eNB_id]<7?0:ue->transmission_mode[eNB_id];
break;
@@ -1552,8 +1556,11 @@ void prec2A_TM56_128(unsigned char pmi,__m128i *ch0,__m128i *ch1)
#elif defined(__arm__)
void prec2A_TM56_128(unsigned char pmi,__m128i *ch0,__m128i *ch1) {
__m128i amp;
amp = _mm_set1_epi16(ONE_OVER_SQRT2_Q15);
// sqrt(2) is already taken into account in computation sqrt_rho_a, sqrt_rho_b,
//so removed it
//__m128i amp;
//amp = _mm_set1_epi16(ONE_OVER_SQRT2_Q15);
switch (pmi) {
@@ -1583,8 +1590,8 @@ void prec2A_TM56_128(unsigned char pmi,__m128i *ch0,__m128i *ch1) {
break;
}
ch0[0] = _mm_mulhi_epi16(ch0[0],amp);
ch0[0] = _mm_slli_epi16(ch0[0],1);
//ch0[0] = _mm_mulhi_epi16(ch0[0],amp);
//ch0[0] = _mm_slli_epi16(ch0[0],1);
_mm_empty();
_m_empty();
@@ -1598,10 +1605,12 @@ short TM3_prec[8]__attribute__((aligned(16))) = {1,1,-1,-1,1,1,-1,-1} ;
void prec2A_TM3_128(__m128i *ch0,__m128i *ch1) {
// __m128i amp = _mm_set1_epi16(ONE_OVER_SQRT2_Q15);
__m128i amp = _mm_set1_epi16(ONE_OVER_SQRT2_Q15);
__m128i tmp0,tmp1;
// sqrt(2) is already taken into account in computation sqrt_rho_a, sqrt_rho_b,
//so divide by 2 is replaced by divide by sqrt(2).
// print_shorts("prec2A_TM3 ch0 (before):",ch0);
// print_shorts("prec2A_TM3 ch1 (before):",ch1);
@@ -1617,9 +1626,13 @@ void prec2A_TM3_128(__m128i *ch0,__m128i *ch1) {
// print_shorts("prec2A_TM3 ch0 (mid):",&tmp0);
// print_shorts("prec2A_TM3 ch1 (mid):",ch1);
ch0[0] = _mm_mulhi_epi16(ch0[0],amp);
ch0[0] = _mm_slli_epi16(ch0[0],1);
ch1[0] = _mm_mulhi_epi16(ch1[0],amp);
ch1[0] = _mm_slli_epi16(ch1[0],1);
ch0[0] = _mm_srai_epi16(ch0[0],1);
ch1[0] = _mm_srai_epi16(ch1[0],1);
// ch0[0] = _mm_srai_epi16(ch0[0],1);
// ch1[0] = _mm_srai_epi16(ch1[0],1);
// print_shorts("prec2A_TM3 ch0 (after):",ch0);
// print_shorts("prec2A_TM3 ch1 (after):",ch1);
@@ -1633,9 +1646,12 @@ void prec2A_TM3_128(__m128i *ch0,__m128i *ch1) {
void prec2A_TM4_128(int pmi,__m128i *ch0,__m128i *ch1) {
// sqrt(2) is already taken into account in computation sqrt_rho_a, sqrt_rho_b,
//so divide by 2 is replaced by divide by sqrt(2).
// printf ("demod pmi=%d\n", pmi);
// __m128i amp;
// amp = _mm_set1_epi16(ONE_OVER_SQRT2_Q15);
__m128i amp;
amp = _mm_set1_epi16(ONE_OVER_SQRT2_Q15);
__m128i tmp0,tmp1;
// print_shorts("prec2A_TM4 ch0 (before):",ch0);
@@ -1659,14 +1675,14 @@ void prec2A_TM4_128(int pmi,__m128i *ch0,__m128i *ch1) {
//print_shorts("prec2A_TM4 ch0 (middle):",ch0);
//print_shorts("prec2A_TM4 ch1 (middle):",ch1);
//ch0[0] = _mm_mulhi_epi16(ch0[0],amp);
//ch0[0] = _mm_slli_epi16(ch0[0],1);
//ch1[0] = _mm_mulhi_epi16(ch1[0],amp);
//ch1[0] = _mm_slli_epi16(ch1[0],1);
ch0[0] = _mm_mulhi_epi16(ch0[0],amp);
ch0[0] = _mm_slli_epi16(ch0[0],1);
ch1[0] = _mm_mulhi_epi16(ch1[0],amp);
ch1[0] = _mm_slli_epi16(ch1[0],1);
ch0[0] = _mm_srai_epi16(ch0[0],1); //divide by 2
ch1[0] = _mm_srai_epi16(ch1[0],1); //divide by 2
// ch0[0] = _mm_srai_epi16(ch0[0],1); //divide by 2
// ch1[0] = _mm_srai_epi16(ch1[0],1); //divide by 2
//print_shorts("prec2A_TM4 ch0 (end):",ch0);
//print_shorts("prec2A_TM4 ch1 (end):",ch1);
_mm_empty();
@@ -2086,7 +2102,6 @@ void dlsch_channel_compensation_TM34(LTE_DL_FRAME_PARMS *frame_parms,
unsigned char aarx=0,symbol_mod,pilots=0;
int precoded_signal_strength0=0,precoded_signal_strength1=0;
int rx_power_correction;
int output_shift;
int **rxdataF_ext = pdsch_vars->rxdataF_ext;
int **dl_ch_estimates_ext = pdsch_vars->dl_ch_estimates_ext;
@@ -3149,7 +3164,6 @@ void dlsch_detection_mrc_TM34(LTE_DL_FRAME_PARMS *frame_parms,
unsigned short nb_rb,
unsigned char dual_stream_UE) {
unsigned char aatx;
int i;
__m128i *rxdataF_comp128_0,*rxdataF_comp128_1,*rxdataF_comp128_i0,*rxdataF_comp128_i1,*dl_ch_mag128_0,*dl_ch_mag128_1,*dl_ch_mag128_0b,*dl_ch_mag128_1b,*rho128_0,*rho128_1,*rho128_i0,*rho128_i1,*dl_ch_mag128_i0,*dl_ch_mag128_i1,*dl_ch_mag128_i0b,*dl_ch_mag128_i1b;
@@ -3806,7 +3820,7 @@ void dlsch_channel_level_TM7(int **dl_bf_ch_estimates_ext,
#endif
}
//#define ONE_OVER_2_Q15 16384
void dlsch_alamouti(LTE_DL_FRAME_PARMS *frame_parms,
int **rxdataF_comp,
int **dl_ch_mag,
@@ -3825,9 +3839,9 @@ void dlsch_alamouti(LTE_DL_FRAME_PARMS *frame_parms,
uint8_t pilots = ((symbol_mod==0)||(symbol_mod==(4-frame_parms->Ncp))) ? 1 : 0;
rxF0_128 = (__m128i*) &rxdataF_comp[0][jj];
//amp = _mm_set1_epi16(ONE_OVER_SQRT2_Q15);
//amp = _mm_set1_epi16(ONE_OVER_2_Q15);
// printf("Doing alamouti!\n");
rxF0 = (short*)&rxdataF_comp[0][jj]; //tx antenna 0 h0*y
rxF1 = (short*)&rxdataF_comp[2][jj]; //tx antenna 1 h1*y
@@ -3863,29 +3877,33 @@ void dlsch_alamouti(LTE_DL_FRAME_PARMS *frame_parms,
ch_mag0b[1] = _mm_adds_epi16(ch_mag0b[1],ch_mag1b[1]);
// account for 1/sqrt(2) scaling at transmission
/*
ch_mag0[0] = _mm_srai_epi16(ch_mag0[0],1);
ch_mag0[1] = _mm_srai_epi16(ch_mag0[1],1);
ch_mag0b[0] = _mm_srai_epi16(ch_mag0b[0],1);
ch_mag0b[1] = _mm_srai_epi16(ch_mag0b[1],1);
//ch_mag0[0] = _mm_srai_epi16(ch_mag0[0],1);
//ch_mag0[1] = _mm_srai_epi16(ch_mag0[1],1);
//ch_mag0b[0] = _mm_srai_epi16(ch_mag0b[0],1);
//ch_mag0b[1] = _mm_srai_epi16(ch_mag0b[1],1);
//rxF0_128[0] = _mm_mulhi_epi16(rxF0_128[0],amp);
//rxF0_128[0] = _mm_slli_epi16(rxF0_128[0],1);
//rxF0_128[1] = _mm_mulhi_epi16(rxF0_128[1],amp);
//rxF0_128[1] = _mm_slli_epi16(rxF0_128[1],1);
//rxF0_128[0] = _mm_srai_epi16(rxF0_128[0],1);
//rxF0_128[1] = _mm_srai_epi16(rxF0_128[1],1);
rxF0_128[0] = _mm_mulhi_epi16(rxF0_128[0],amp);
rxF0_128[0] = _mm_slli_epi16(rxF0_128[0],1);
rxF0_128[1] = _mm_mulhi_epi16(rxF0_128[1],amp);
rxF0_128[1] = _mm_slli_epi16(rxF0_128[1],1);
*/
if (pilots==0) {
ch_mag0[2] = _mm_adds_epi16(ch_mag0[2],ch_mag1[2]);
ch_mag0b[2] = _mm_adds_epi16(ch_mag0b[2],ch_mag1b[2]);
/*
ch_mag0[2] = _mm_srai_epi16(ch_mag0[2],1);
ch_mag0b[2] = _mm_srai_epi16(ch_mag0b[2],1);
//ch_mag0[2] = _mm_srai_epi16(ch_mag0[2],1);
//ch_mag0b[2] = _mm_srai_epi16(ch_mag0b[2],1);
//rxF0_128[2] = _mm_mulhi_epi16(rxF0_128[2],amp);
//rxF0_128[2] = _mm_slli_epi16(rxF0_128[2],1);
//rxF0_128[2] = _mm_srai_epi16(rxF0_128[2],1);
rxF0_128[2] = _mm_mulhi_epi16(rxF0_128[2],amp);
rxF0_128[2] = _mm_slli_epi16(rxF0_128[2],1);
*/
ch_mag0+=3;
ch_mag1+=3;
openair1/PHY/LTE_TRANSPORT/dlsch_modulation.c
+49 -33
View File
@@ -1136,13 +1136,24 @@ int allocate_REs_in_RB(PHY_VARS_eNB* phy_vars_eNB,
*jj = *jj + 1;
//normalization for 2 tx antennas
((int16_t*)&txdataF[0][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample1)[0]*ONE_OVER_SQRT2_Q15)>>15);
/*((int16_t*)&txdataF[0][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample1)[0]*ONE_OVER_SQRT2_Q15)>>15);
((int16_t*)&txdataF[0][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample1)[1]*ONE_OVER_SQRT2_Q15)>>15);
if (frame_parms->nb_antenna_ports_eNB == 2) {
layer1prec2A(&tmp_sample1,&tmp_sample2,precoder_index);
((int16_t*)&txdataF[1][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample2)[0]*ONE_OVER_SQRT2_Q15)>>15);
((int16_t*)&txdataF[1][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample2)[1]*ONE_OVER_SQRT2_Q15)>>15);
}*/
// We remove ONE_OVER_SQRT2_Q15 that was coming from precoder, as now it applied in computation sqrt_rho_a, sqrt_rho_b, same in the receiver in precoder function
((int16_t*)&txdataF[0][tti_offset])[0] += ((int16_t*)&tmp_sample1)[0];
((int16_t*)&txdataF[0][tti_offset])[1] += ((int16_t*)&tmp_sample1)[1];
if (frame_parms->nb_antenna_ports_eNB == 2) {
layer1prec2A(&tmp_sample1,&tmp_sample2,precoder_index);
((int16_t*)&txdataF[1][tti_offset])[0] += ((int16_t*)&tmp_sample2)[0];
((int16_t*)&txdataF[1][tti_offset])[1] += ((int16_t*)&tmp_sample2)[1];
}
break;
@@ -1171,13 +1182,13 @@ int allocate_REs_in_RB(PHY_VARS_eNB* phy_vars_eNB,
((int16_t*)&tmp_sample1)[0] = (int16_t)((qam_table_s0[qam16_table_offset_re]));
((int16_t*)&tmp_sample1)[1] = (int16_t)((qam_table_s0[qam16_table_offset_im]));
((int16_t *)&txdataF[0][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample1)[0]*ONE_OVER_SQRT2_Q15)>>15);
((int16_t *)&txdataF[0][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample1)[1]*ONE_OVER_SQRT2_Q15)>>15);
((int16_t *)&txdataF[0][tti_offset])[0] += ((int16_t*)&tmp_sample1)[0];
((int16_t *)&txdataF[0][tti_offset])[1] += ((int16_t*)&tmp_sample1)[1];
if (frame_parms->nb_antennas_tx == 2) {
layer1prec2A(&tmp_sample1,&tmp_sample2,precoder_index);
((int16_t*)&txdataF[1][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample2)[0]*ONE_OVER_SQRT2_Q15)>>15);
((int16_t*)&txdataF[1][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample2)[1]*ONE_OVER_SQRT2_Q15)>>15);
((int16_t*)&txdataF[1][tti_offset])[0] += ((int16_t*)&tmp_sample2)[0];
((int16_t*)&txdataF[1][tti_offset])[1] += ((int16_t*)&tmp_sample2)[1];
}
break;
@@ -1208,13 +1219,13 @@ int allocate_REs_in_RB(PHY_VARS_eNB* phy_vars_eNB,
((int16_t*)&tmp_sample1)[0] = (int16_t)((qam_table_s0[qam64_table_offset_re]));
((int16_t*)&tmp_sample1)[1] = (int16_t)((qam_table_s0[qam64_table_offset_im]));
((int16_t *)&txdataF[0][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample1)[0]*ONE_OVER_SQRT2_Q15)>>15);
((int16_t *)&txdataF[0][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample1)[1]*ONE_OVER_SQRT2_Q15)>>15);
((int16_t *)&txdataF[0][tti_offset])[0] += ((int16_t*)&tmp_sample1)[0];
((int16_t *)&txdataF[0][tti_offset])[1] += ((int16_t*)&tmp_sample1)[1];
if (frame_parms->nb_antenna_ports_eNB == 2) {
layer1prec2A(&tmp_sample1,&tmp_sample2,precoder_index);
((int16_t*)&txdataF[1][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample2)[0]*ONE_OVER_SQRT2_Q15)>>15);
((int16_t*)&txdataF[1][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample2)[1]*ONE_OVER_SQRT2_Q15)>>15);
((int16_t*)&txdataF[1][tti_offset])[0] += ((int16_t*)&tmp_sample2)[0];
((int16_t*)&txdataF[1][tti_offset])[1] += ((int16_t*)&tmp_sample2)[1];
}
break;
@@ -1246,15 +1257,18 @@ int allocate_REs_in_RB(PHY_VARS_eNB* phy_vars_eNB,
*jj = *jj + 1;
//normalization for 2 tx antennas
((int16_t*)&txdataF[0][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample1)[0]*ONE_OVER_2_Q15)>>15);
((int16_t*)&txdataF[0][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample1)[1]*ONE_OVER_2_Q15)>>15);
// We remove ONE_OVER_2_Q15 that was coming from precoder,
//as now it applied in computation sqrt_rho_a, sqrt_rho_b, same in the receiver in precoder function
//ONE_OVER_SQRT2_Q15 remains from it
((int16_t*)&txdataF[0][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample1)[0]*ONE_OVER_SQRT2_Q15)>>15);
((int16_t*)&txdataF[0][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample1)[1]*ONE_OVER_SQRT2_Q15)>>15);
//printf("%d,%d\n",((int16_t*)&txdataF[0][tti_offset])[0],((int16_t*)&txdataF[0][tti_offset])[1]);
if (frame_parms->nb_antenna_ports_eNB == 2) {
layer1prec2A(&tmp_sample1,&tmp_sample2,precoder_index0);
((int16_t*)&txdataF[1][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample2)[0]*ONE_OVER_2_Q15)>>15);
((int16_t*)&txdataF[1][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample2)[1]*ONE_OVER_2_Q15)>>15);
((int16_t*)&txdataF[1][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample2)[0]*ONE_OVER_SQRT2_Q15)>>15);
((int16_t*)&txdataF[1][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample2)[1]*ONE_OVER_SQRT2_Q15)>>15);
}
break;
@@ -1280,13 +1294,17 @@ int allocate_REs_in_RB(PHY_VARS_eNB* phy_vars_eNB,
((int16_t*)&tmp_sample1)[0] = (int16_t)((qam_table_s0[qam16_table_offset_re]));
((int16_t*)&tmp_sample1)[1] = (int16_t)((qam_table_s0[qam16_table_offset_im]));
((int16_t *)&txdataF[0][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample1)[0]*ONE_OVER_2_Q15)>>15);
((int16_t *)&txdataF[0][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample1)[1]*ONE_OVER_2_Q15)>>15);
// We remove ONE_OVER_2_Q15 that was coming from precoder,
//as now it applied in computation sqrt_rho_a, sqrt_rho_b, same in the receiver in precoder function
//ONE_OVER_SQRT2_Q15 remains from it
((int16_t *)&txdataF[0][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample1)[0]*ONE_OVER_SQRT2_Q15)>>15);
((int16_t *)&txdataF[0][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample1)[1]*ONE_OVER_SQRT2_Q15)>>15);
if (frame_parms->nb_antenna_ports_eNB == 2) {
layer1prec2A(&tmp_sample1,&tmp_sample2,precoder_index0);
((int16_t*)&txdataF[1][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample2)[0]*ONE_OVER_2_Q15)>>15);
((int16_t*)&txdataF[1][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample2)[1]*ONE_OVER_2_Q15)>>15);
((int16_t*)&txdataF[1][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample2)[0]*ONE_OVER_SQRT2_Q15)>>15);
((int16_t*)&txdataF[1][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample2)[1]*ONE_OVER_SQRT2_Q15)>>15);
}
break;
@@ -1317,8 +1335,8 @@ int allocate_REs_in_RB(PHY_VARS_eNB* phy_vars_eNB,
((int16_t*)&tmp_sample1)[0] = (int16_t)((qam_table_s0[qam64_table_offset_re]));
((int16_t*)&tmp_sample1)[1] = (int16_t)((qam_table_s0[qam64_table_offset_im]));
((int16_t *)&txdataF[0][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample1)[0]*ONE_OVER_2_Q15)>>15);
((int16_t *)&txdataF[0][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample1)[1]*ONE_OVER_2_Q15)>>15);
((int16_t *)&txdataF[0][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample1)[0]*ONE_OVER_SQRT2_Q15)>>15);
((int16_t *)&txdataF[0][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample1)[1]*ONE_OVER_SQRT2_Q15)>>15);
if (frame_parms->nb_antenna_ports_eNB == 2) {
layer1prec2A(&tmp_sample1,&tmp_sample2,precoder_index);
@@ -1340,13 +1358,13 @@ int allocate_REs_in_RB(PHY_VARS_eNB* phy_vars_eNB,
*jj2 = *jj2 + 1;
//normalization for 2 tx antennas
((int16_t*)&txdataF[0][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample1)[0]*ONE_OVER_2_Q15)>>15);
((int16_t*)&txdataF[0][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample1)[1]*ONE_OVER_2_Q15)>>15);
((int16_t*)&txdataF[0][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample1)[0]*ONE_OVER_SQRT2_Q15)>>15);
((int16_t*)&txdataF[0][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample1)[1]*ONE_OVER_SQRT2_Q15)>>15);
if (frame_parms->nb_antenna_ports_eNB== 2) {
layer1prec2A(&tmp_sample1,&tmp_sample2,precoder_index1);
((int16_t*)&txdataF[1][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample2)[0]*ONE_OVER_2_Q15)>>15);
((int16_t*)&txdataF[1][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample2)[1]*ONE_OVER_2_Q15)>>15);
((int16_t*)&txdataF[1][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample2)[0]*ONE_OVER_SQRT2_Q15)>>15);
((int16_t*)&txdataF[1][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample2)[1]*ONE_OVER_SQRT2_Q15)>>15);
}
break;
@@ -1373,13 +1391,13 @@ int allocate_REs_in_RB(PHY_VARS_eNB* phy_vars_eNB,
((int16_t*)&tmp_sample1)[0] = (int16_t)((qam_table_s1[qam16_table_offset_re]));
((int16_t*)&tmp_sample1)[1] = (int16_t)((qam_table_s1[qam16_table_offset_im]));
((int16_t *)&txdataF[0][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample1)[0]*ONE_OVER_2_Q15)>>15);
((int16_t *)&txdataF[0][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample1)[1]*ONE_OVER_2_Q15)>>15);
((int16_t *)&txdataF[0][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample1)[0]*ONE_OVER_SQRT2_Q15)>>15);
((int16_t *)&txdataF[0][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample1)[1]*ONE_OVER_SQRT2_Q15)>>15);
if (frame_parms->nb_antenna_ports_eNB == 2) {
layer1prec2A(&tmp_sample1,&tmp_sample2,precoder_index1);
((int16_t*)&txdataF[1][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample2)[0]*ONE_OVER_2_Q15)>>15);
((int16_t*)&txdataF[1][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample2)[1]*ONE_OVER_2_Q15)>>15);
((int16_t*)&txdataF[1][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample2)[0]*ONE_OVER_SQRT2_Q15)>>15);
((int16_t*)&txdataF[1][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample2)[1]*ONE_OVER_SQRT2_Q15)>>15);
}
break;
@@ -1409,13 +1427,13 @@ int allocate_REs_in_RB(PHY_VARS_eNB* phy_vars_eNB,
((int16_t*)&tmp_sample1)[0] = (int16_t)((qam_table_s1[qam64_table_offset_re]));
((int16_t*)&tmp_sample1)[1] = (int16_t)((qam_table_s1[qam64_table_offset_im]));
((int16_t *)&txdataF[0][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample1)[0]*ONE_OVER_2_Q15)>>15);
((int16_t *)&txdataF[0][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample1)[1]*ONE_OVER_2_Q15)>>15);
((int16_t *)&txdataF[0][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample1)[0]*ONE_OVER_SQRT2_Q15)>>15);
((int16_t *)&txdataF[0][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample1)[1]*ONE_OVER_SQRT2_Q15)>>15);
if (frame_parms->nb_antenna_ports_eNB == 2) {
layer1prec2A(&tmp_sample1,&tmp_sample2,precoder_index1);
((int16_t*)&txdataF[1][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample2)[0]*ONE_OVER_2_Q15)>>15);
((int16_t*)&txdataF[1][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample2)[1]*ONE_OVER_2_Q15)>>15);
((int16_t*)&txdataF[1][tti_offset])[0] += (int16_t)((((int16_t*)&tmp_sample2)[0]*ONE_OVER_SQRT2_Q15)>>15);
((int16_t*)&txdataF[1][tti_offset])[1] += (int16_t)((((int16_t*)&tmp_sample2)[1]*ONE_OVER_SQRT2_Q15)>>15);
}
break;
@@ -2422,9 +2440,7 @@ int dlsch_modulation_SIC(int32_t **sic_buffer,
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_ENB_DLSCH_MODULATION, VCD_FUNCTION_IN);
amp=1; //we do full scale here for SIC
gain_lin_QPSK = (int16_t)((ONE_OVER_SQRT2_Q15));
//printf("gain=%d\n", gain_lin_QPSK);
jj = 0;
i = 0;