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TM7 dlsim works

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This commit is contained in:
Xiwen JIANG
2015-11-26 10:32:43 +01:00
parent 0d681a0e72
commit ed83cbd1eb
29 changed files with 563 additions and 426 deletions
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openair1/SIMULATION/LTE_PHY/dlsim.c
+108 -66
View File
@@ -134,7 +134,7 @@ void lte_param_init(unsigned char N_tx_port_eNB, unsigned char N_tx_phy, unsigne
lte_frame_parms->nushift = Nid_cell%6;
lte_frame_parms->nb_antennas_tx = N_tx_phy;
lte_frame_parms->nb_antennas_rx = N_rx;
lte_frame_parms->nb_antennas_tx_eNB = N_tx_port_eNB;
lte_frame_parms->nb_antenna_ports_eNB = N_tx_port_eNB;
lte_frame_parms->phich_config_common.phich_resource = one;
lte_frame_parms->tdd_config = tdd_config;
lte_frame_parms->frame_type = (fdd_flag==1)?0 : 1;
@@ -205,32 +205,59 @@ uint64_t DLSCH_alloc_pdu_1[2];
#define CCCH_RB_ALLOC computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_UL,0,2)
//#define DLSCH_RB_ALLOC 0x1fbf // igore DC component,RB13
//#define DLSCH_RB_ALLOC 0x0001
void do_OFDM_mod_l(mod_sym_t **txdataF, int32_t **txdata, uint16_t next_slot, LTE_DL_FRAME_PARMS *frame_parms)
void do_OFDM_mod_l(LTE_eNB_COMMON *eNB_common_vars, int eNB_id, uint16_t next_slot, LTE_DL_FRAME_PARMS *frame_parms, uint8_t num_pdcch_symbols, unsigned char transmission_mode)
{
int aa, slot_offset, slot_offset_F;
int aa, l, slot_offset, slot_offset_F;
mod_sym_t **txdataF = eNB_common_vars->txdataF[eNB_id];
mod_sym_t **txdataF_BF = eNB_common_vars->txdataF_BF[eNB_id];
int32_t **txdata = eNB_common_vars->txdata[eNB_id];
slot_offset_F = (next_slot)*(frame_parms->ofdm_symbol_size)*((frame_parms->Ncp==1) ? 6 : 7);
//slot_offset_F = (next_slot)*(frame_parms->ofdm_symbol_size)*((frame_parms->Ncp==1) ? 6 : 7);
slot_offset = (next_slot)*(frame_parms->samples_per_tti>>1);
for (aa=0; aa<frame_parms->nb_antennas_tx; aa++) {
// printf("Thread %d starting ... aa %d (%llu)\n",omp_get_thread_num(),aa,rdtsc());
// printf("Thread %d starting ... aa %d (%llu)\n",omp_get_thread_num(),aa,rdtsc());
for (l=0; l<frame_parms->symbols_per_tti>>1; l++) {
//printf("do_OFDM_mod_l, slot=%d, l=%d, NUMBER_OF_OFDM_CARRIERS=%d,OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES=%d\n",next_slot, l,NUMBER_OF_OFDM_CARRIERS,OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES);
if (l<num_pdcch_symbols)
cell_spec_beamforming(txdataF,txdataF_BF,frame_parms,eNB_common_vars->cell_spec_bf_weights,next_slot,l);
else
if (transmission_mode<7)
cell_spec_beamforming(txdataF,txdataF_BF,frame_parms,eNB_common_vars->cell_spec_bf_weights,next_slot,l);
else
ue_spec_beamforming(txdataF,txdataF_BF,frame_parms,eNB_common_vars->ue_spec_bf_weights,next_slot,l);
if (frame_parms->Ncp == 1)
PHY_ofdm_mod(&txdataF[aa][slot_offset_F], // input
&txdata[aa][slot_offset], // output
frame_parms->log2_symbol_size, // log2_fft_size
6, // number of symbols
frame_parms->nb_prefix_samples, // number of prefix samples
CYCLIC_PREFIX);
else {
normal_prefix_mod(&txdataF[aa][slot_offset_F],
&txdata[aa][slot_offset],
7,
frame_parms);
for (aa=0; aa<frame_parms->nb_antennas_tx; aa++) {
if (frame_parms->Ncp == 1)
PHY_ofdm_mod(txdataF_BF[aa], // input
&txdata[aa][slot_offset+l*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES], // output
frame_parms->log2_symbol_size, // log2_fft_size
1, // number of symbols
frame_parms->nb_prefix_samples, // number of prefix samples
CYCLIC_PREFIX);
else {
if (l==0) {
PHY_ofdm_mod(txdataF_BF[aa], // input
&txdata[aa][slot_offset], // output
frame_parms->log2_symbol_size, // log2_fft_size
1, // number of symbols
frame_parms->nb_prefix_samples0, // number of prefix samples
CYCLIC_PREFIX);
} else {
PHY_ofdm_mod(txdataF_BF[aa], // input
&txdata[aa][slot_offset+OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES0+(l-1)*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES], // output
frame_parms->log2_symbol_size, // log2_fft_size
1, // number of symbols
frame_parms->nb_prefix_samples, // number of prefix samples
CYCLIC_PREFIX);
}
}
}
}
}
@@ -239,7 +266,8 @@ int main(int argc, char **argv)
{
int c;
int k,i,aa,aarx,aatx;
int k,i,j,aa,aarx,aatx;
int re;
int s,Kr,Kr_bytes;
@@ -253,7 +281,7 @@ int main(int argc, char **argv)
uint8_t extended_prefix_flag=0,transmission_mode=1,n_tx_port=1,n_tx_phy=1,n_rx=1;
uint16_t Nid_cell=0;
int32_t **beamforming_weights;
int32_t **ue_spec_bf_weights, **cell_spec_bf_weights;
int eNB_id = 0, eNB_id_i = 1;
unsigned char mcs1=0,mcs2=0,mcs_i=0,dual_stream_UE = 0,awgn_flag=0,round,dci_flag=0;
@@ -585,7 +613,7 @@ int main(int argc, char **argv)
//if (transmission_mode==7 && (n_tx_phy!=1 && n_tx_phy!=2 && n_tx_phy!=4 && n_tx_phy!=8 && n_tx_phy!=16 && n_tx_phy!=64 && n_tx_phy!=128)) {
if (transmission_mode==7 && (n_tx_phy!=1 && n_tx_phy!=2 && n_tx_phy!=4 && n_tx_phy!=16 && n_tx_phy!=64)) {
msg("For TM7, physical antenna number should be an exponent of 4, maximum 64 antennas supported.\n");
msg("Physical number of antennas not supported for TM7.\n");
exit(-1);
}
@@ -767,28 +795,21 @@ int main(int argc, char **argv)
lte_param_init(n_tx_port,n_tx_phy,n_rx,transmission_mode,extended_prefix_flag,fdd_flag,Nid_cell,tdd_config,N_RB_DL,osf,perfect_ce);
frame_parms = &PHY_vars_eNB->lte_frame_parms;
cell_spec_bf_weights = PHY_vars_eNB->lte_eNB_common_vars.cell_spec_bf_weights[0][0];
for(aa=0;aa<n_tx_phy;aa++) {
for(i=0;i<frame_parms->ofdm_symbol_size;i++) {
cell_spec_bf_weights[aa][i] = 0x00007fff;
}
}
if (transmission_mode==7){
lte_gold_ue_spec_port5(PHY_vars_eNB->lte_gold_uespec_port5_table[0],Nid_cell,n_rnti);
lte_gold_ue_spec_port5(PHY_vars_UE->lte_gold_uespec_port5_table,Nid_cell,n_rnti);
beamforming_weights = (int32_t **)malloc(12*N_RB_DL*sizeof(int32_t*));
for(i=0;i<12*N_RB_DL;i++){
beamforming_weights[i]=(int32_t *)malloc(n_tx_phy*sizeof(int32_t));
for(aa=0;aa<n_tx_phy;aa++){
//tmp
if (n_tx_phy==1 || n_tx_phy==2)
beamforming_weights[i][aa] = 0x00007fff;
else if (n_tx_phy==4)
beamforming_weights[i][aa] = 0x00007fff>>1;
else if (n_tx_phy==16)
beamforming_weights[i][aa] = 0x00007fff>>2;
else if (n_tx_phy==64)
beamforming_weights[i][aa] = 0x00007fff>>4;//3
}
}
printf("***n_tx_phy=%d,n_tx_phy>>2=%d,beamforming_weights=%d\n",n_tx_phy,n_tx_phy>>2,beamforming_weights[0][0]);
}
eNB_id_i = PHY_vars_UE->n_connected_eNB;
printf("Setting mcs1 = %d\n",mcs1);
@@ -810,8 +831,6 @@ int main(int argc, char **argv)
txdata[1] = (int *)malloc16(FRAME_LENGTH_BYTES);
*/
frame_parms = &PHY_vars_eNB->lte_frame_parms;
s_re = malloc(n_tx_phy*sizeof(double*));
s_im = malloc(n_tx_phy*sizeof(double*));
r_re = malloc(2*sizeof(double*));
@@ -1041,11 +1060,31 @@ int main(int argc, char **argv)
for (k=0; k<n_users; k++) {
// Create transport channel structures for 2 transport blocks (MIMO)
for (i=0; i<2; i++) {
PHY_vars_eNB->dlsch_eNB[k][i] = new_eNB_dlsch(Kmimo,8,N_RB_DL,0);
PHY_vars_eNB->dlsch_eNB[k][i] = new_eNB_dlsch(Kmimo,8,N_RB_DL,0,&PHY_vars_UE->lte_frame_parms);
if (!PHY_vars_eNB->dlsch_eNB[k][i]) {
printf("Can't get eNB dlsch structures\n");
exit(-1);
} else {
// this initilisation may should be moved to another place
for (j=0; j<4; j++) { // antenna port 5,7-14
ue_spec_bf_weights = PHY_vars_eNB->dlsch_eNB[k][i]->ue_spec_bf_weights[j];
for (aa=0; aa<frame_parms->nb_antennas_tx; aa++) {
for (re=0;re<frame_parms->ofdm_symbol_size;re++) {
if (n_tx_phy==1 || n_tx_phy==2)
ue_spec_bf_weights[aa][re] = 0x00007fff;
else if (n_tx_phy==4)
ue_spec_bf_weights[aa][re] = 0x00007fff>>1;
else if (n_tx_phy==16)
ue_spec_bf_weights[aa][re] = 0x00007fff>>2;
else if (n_tx_phy==64)
ue_spec_bf_weights[aa][re] = 0x00007fff>>4;
}
}
}
}
PHY_vars_eNB->dlsch_eNB[k][i]->rnti = n_rnti+k;
@@ -1064,7 +1103,7 @@ int main(int argc, char **argv)
}
// structure for SIC at UE
PHY_vars_UE->dlsch_eNB[0] = new_eNB_dlsch(Kmimo,8,N_RB_DL,0);
PHY_vars_UE->dlsch_eNB[0] = new_eNB_dlsch(Kmimo,8,N_RB_DL,0,&PHY_vars_eNB->lte_frame_parms);
if (DLSCH_alloc_pdu2_1E[0].tpmi == 5) {
@@ -2221,8 +2260,7 @@ int main(int argc, char **argv)
PMI_FEEDBACK:
//printf("Trial %d : Round %d, pmi_feedback %d \n",trials,round,pmi_feedback);
//for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_tx; aa++) {
for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_tx; aa++) {
for (aa=0; aa<NB_ANTENNA_PORTS_ENB; aa++) {
memset(&PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id][aa][0],0,FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX*sizeof(mod_sym_t));
}
@@ -2738,8 +2776,7 @@ PMI_FEEDBACK:
subframe,
num_pdcch_symbols,
PHY_vars_eNB->dlsch_eNB[k][0],
PHY_vars_eNB->dlsch_eNB[k][1],
beamforming_weights);
PHY_vars_eNB->dlsch_eNB[k][1]);
stop_meas(&PHY_vars_eNB->dlsch_modulation_stats);
/*
if (trials==0 && round==0)
@@ -2883,27 +2920,37 @@ PMI_FEEDBACK:
}
*/
do_OFDM_mod_l(PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id],
do_OFDM_mod_l(&PHY_vars_eNB->lte_eNB_common_vars,
eNB_id,
(subframe*2),
&PHY_vars_eNB->lte_frame_parms);
&PHY_vars_eNB->lte_frame_parms,
num_pdcch_symbols,
transmission_mode);
do_OFDM_mod_l(PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id],
do_OFDM_mod_l(&PHY_vars_eNB->lte_eNB_common_vars,
eNB_id,
(subframe*2)+1,
&PHY_vars_eNB->lte_frame_parms);
&PHY_vars_eNB->lte_frame_parms,
num_pdcch_symbols,
transmission_mode);
stop_meas(&PHY_vars_eNB->ofdm_mod_stats);
stop_meas(&PHY_vars_eNB->phy_proc_tx);
do_OFDM_mod_l(PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id],
/* do_OFDM_mod_l(&PHY_vars_eNB->lte_eNB_common_vars,
eNB_id,
(subframe*2)+2,
&PHY_vars_eNB->lte_frame_parms);
&PHY_vars_eNB->lte_frame_parms); */
if (n_frames==1) {
write_output("txsigF0.m","txsF0", &PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id][0][subframe*nsymb*PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size],
nsymb*PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size,1,1);
if (transmission_mode<7)
write_output("txsigF0.m","txsF0", &PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id][0][subframe*nsymb*PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size],
nsymb*PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size,1,1);
else if (transmission_mode==7)
write_output("txsigF0.m","txsF0", &PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id][5][subframe*nsymb*PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size],
nsymb*PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size,1,1);
write_output("txsigF0_BF.m","txsF0_BF", &PHY_vars_eNB->lte_eNB_common_vars.txdataF_BF[eNB_id][0][0],
PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size,1,1);
if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1)// to be updated
write_output("txsigF1.m","txsF1", &PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id][1][subframe*nsymb*PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size],
@@ -3144,7 +3191,7 @@ PMI_FEEDBACK:
//write_output("channel.m","ch",desc1->ch[0],desc1->channel_length,1,8);
//write_output("channelF.m","chF",desc1->chF[0],nb_samples,1,8);
for(k=0; k<NUMBER_OF_eNB_MAX; k++) {
for(aa=0; aa<frame_parms->nb_antennas_tx_eNB; aa++) {
for(aa=0; aa<frame_parms->nb_antenna_ports_eNB; aa++) {
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) {
for (i=0; i<frame_parms->N_RB_DL*12; i++) {
((int16_t *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[k][(aa<<1)+aarx])[2*i+((l+(Ns%2)*pilot2)*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(int16_t)(
@@ -3173,7 +3220,7 @@ PMI_FEEDBACK:
}
}
} else {
for(aa=0; aa<frame_parms->nb_antennas_tx_eNB; aa++) {
for(aa=0; aa<frame_parms->nb_antenna_ports_eNB; aa++) {
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) {
for (i=0; i<frame_parms->N_RB_DL*12; i++) {
((int16_t *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][(aa<<1)+aarx])[2*i+((l+(Ns%2)*pilot2)*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(short)(AMP);
@@ -4347,16 +4394,11 @@ PMI_FEEDBACK:
free(r_im[i]);
}
if(transmission_mode == 7){
for(i=0;i<12*N_RB_DL;i++)
free(beamforming_weights[i]);
}
free(s_re);
free(s_im);
free(r_re);
free(r_im);
free(beamforming_weights);
// lte_sync_time_free();
openair1/SIMULATION/LTE_PHY/framegen.c
+1 -1
View File
@@ -401,7 +401,7 @@ void lte_param_init( unsigned char transmission_mode,
lte_frame_parms->Nid_cell = Nid_cell;
lte_frame_parms->nushift = Nid_cell%6;
lte_frame_parms->nb_antennas_tx = (transmission_mode == 1) ? 1 : 2;
lte_frame_parms->nb_antennas_tx_eNB = (transmission_mode == 1) ? 1 : 2;
lte_frame_parms->nb_antenna_ports_eNB = (transmission_mode == 1) ? 1 : 2;
lte_frame_parms->nb_antennas_rx = (transmission_mode == 1) ? 1 : 2;
lte_frame_parms->mode1_flag = (transmission_mode == 1)? 1 : 0;
lte_frame_parms->phich_config_common.phich_resource = oneSixth;
openair1/SIMULATION/LTE_PHY/pbchsim.c
+1 -1
View File
@@ -88,7 +88,7 @@ void lte_param_init(unsigned char N_tx, unsigned char N_rx,unsigned char transmi
lte_frame_parms->Nid_cell = Nid_cell;
lte_frame_parms->nushift = Nid_cell%6;
lte_frame_parms->nb_antennas_tx = N_tx;
lte_frame_parms->nb_antennas_tx_eNB = N_tx;
lte_frame_parms->nb_antenna_ports_eNB = N_tx;
lte_frame_parms->nb_antennas_rx = N_rx;
// lte_frame_parms->Csrs = 2;
// lte_frame_parms->Bsrs = 0;
openair1/SIMULATION/LTE_PHY/pdcchsim.c
+7 -7
View File
@@ -85,7 +85,7 @@ void lte_param_init(unsigned char N_tx, unsigned char N_rx,unsigned char transmi
lte_frame_parms->Ncp = extended_prefix_flag;
lte_frame_parms->Nid_cell = Nid_cell;
lte_frame_parms->nushift = Nid_cell%6;
lte_frame_parms->nb_antennas_tx_eNB = N_tx;
lte_frame_parms->nb_antenna_ports_eNB = N_tx;
lte_frame_parms->nb_antennas_tx = N_tx;
lte_frame_parms->nb_antennas_rx = N_rx;
lte_frame_parms->phich_config_common.phich_resource = one; //half
@@ -858,7 +858,7 @@ int main(int argc, char **argv)
break;
}
eNB2UE = new_channel_desc_scm(PHY_vars_eNB->lte_frame_parms.nb_antennas_tx_eNB,
eNB2UE = new_channel_desc_scm(PHY_vars_eNB->lte_frame_parms.nb_antenna_ports_eNB,
PHY_vars_UE->lte_frame_parms.nb_antennas_rx,
channel_model,
BW,
@@ -940,7 +940,7 @@ int main(int argc, char **argv)
for (trial=0; trial<n_frames; trial++) {
// printf("DCI (SF %d): txdataF %p (0 %p)\n",subframe,&PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNb_id][aa][512*14*subframe],&PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNb_id][aa][0]);
for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_tx_eNB; aa++) {
for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antenna_ports_eNB; aa++) {
memset(&PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNb_id][aa][0],0,FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX*sizeof(mod_sym_t));
/*
@@ -1090,7 +1090,7 @@ int main(int argc, char **argv)
if (n_frames==1) {
write_output("txsigF0.m","txsF0", PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNb_id][0],4*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES_NO_PREFIX,1,1);
if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx_eNB > 1)
if (PHY_vars_eNB->lte_frame_parms.nb_antenna_ports_eNB > 1)
write_output("txsigF1.m","txsF1", PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNb_id][1],4*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES_NO_PREFIX,1,1);
}
@@ -1098,7 +1098,7 @@ int main(int argc, char **argv)
for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_tx_eNB; aa++) {
for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antenna_ports_eNB; aa++) {
if (PHY_vars_eNB->lte_frame_parms.Ncp == 1)
PHY_ofdm_mod(&PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNb_id][aa][subframe*nsymb*PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size], // input,
&txdata[aa][subframe*PHY_vars_eNB->lte_frame_parms.samples_per_tti], // output
@@ -1123,7 +1123,7 @@ int main(int argc, char **argv)
for (i=0; i<2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES; i++) {
for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_tx_eNB; aa++) {
for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antenna_ports_eNB; aa++) {
if (awgn_flag == 0) {
s_re[aa][i] = ((double)(((short *)txdata[aa]))[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti) + (i<<1)]);
s_im[aa][i] = ((double)(((short *)txdata[aa]))[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti) + (i<<1)+1]);
@@ -1211,7 +1211,7 @@ int main(int argc, char **argv)
}
}
} else {
for(aa=0; aa<frame_parms->nb_antennas_tx_eNB; aa++) {
for(aa=0; aa<frame_parms->nb_antenna_ports_eNB; aa++) {
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) {
for (i=0; i<frame_parms->N_RB_DL*12; i++) {
((int16_t *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][(aa<<1)+aarx])[2*i+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(short)(AMP);
openair1/SIMULATION/LTE_PHY/scansim.c
+1 -1
View File
@@ -88,7 +88,7 @@ void lte_param_init(unsigned char N_tx, unsigned char N_rx,unsigned char transmi
lte_frame_parms->Nid_cell = Nid_cell;
lte_frame_parms->nushift = Nid_cell%6;
lte_frame_parms->nb_antennas_tx = N_tx;
lte_frame_parms->nb_antennas_tx_eNB = N_tx;
lte_frame_parms->nb_antenna_ports_eNB = N_tx;
lte_frame_parms->nb_antennas_rx = N_rx;
// lte_frame_parms->Csrs = 2;
// lte_frame_parms->Bsrs = 0;