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openairinterface5g/openair1/SIMULATION/LTE_FEMTO/femtosim.c
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#include <stdio.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <execinfo.h>
#include <sys/stat.h>
#include "SIMULATION/TOOLS/defs.h"
#include "PHY/types.h"
#include "PHY/defs.h"
#include "PHY/vars.h"
#include "MAC_INTERFACE/vars.h"
#include "ARCH/CBMIMO1/DEVICE_DRIVER/vars.h"
#include "SCHED/defs.h"
#include "SCHED/vars.h"
#include "LAYER2/MAC/vars.h"
#include "OCG_vars.h"
#include "SCHED/defs.h"
#include "femtoUtils.h"
#include "UTIL/LOG/log.h"
#include "RadioResourceConfigCommonSIB.h"
#include "RadioResourceConfigDedicated.h"
#ifdef XFORMS
#include "forms.h"
#include "../../USERSPACE_TOOLS/SCOPE/lte_scope.h"
PHY/TOOLS/lte_phy_scope.h
#include "UTIL/LOG/vcd_signal_dumper.h" //TVT:Navid
void do_forms(FD_lte_scope *form, LTE_DL_FRAME_PARMS *frame_parms, short **channel,
short **channel_f, short **rx_sig, short **rx_sig_f, short *dlsch_comp,
short* dlsch_comp_i, short* dlsch_rho, short *dlsch_llr, int coded_bits_per_codeword);
#endif
double BW = 7.68; //TVT: 20MHz BW 7.68
#define N_RB 25 //TVT: 50 for 10MHz and 25 for 5 MHz 100 for 20MHz
#define UL_RB_ALLOC 0x1ff;
u32 DLSCH_RB_ALLOC = 0x1fff; // TVT: 0x1fff for 5MHz 0x1ffffff for 20MHz
u32 DLSCH_RB_ALLOC2[4]; //TVT: RB_ALLOC per round
#define CCCH_RB_ALLOC computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_UL,0,2)
PHY_VARS_eNB *PHY_vars_eNB;
PHY_VARS_UE *PHY_vars_UE;
PHY_VARS_eNB **interf_PHY_vars_eNB;
channel_desc_t *eNB2UE;
channel_desc_t **interf_eNB2UE;
DCI1_5MHz_TDD_t DLSCH_alloc_pdu2_1; // DCI format 1 for BW MHz
uint64_t DLSCH_alloc_pdu_1;
LTE_DL_FRAME_PARMS *frame_parms; //WARNING if you don't put this variable, some functions don't work
int WRITE_FILES =1;
int NOISE=1;
int x=0;
int totErrors=0;
int totBits=0;
#ifdef XFORMS
FD_lte_scope *form;
char title[255];
#endif
int main(int argc,char **argv)
{
options_t opts;
data_t data;
u16 NB_RB;
u32 NB_RB2[4];
u8 num_pdcch_symbols=1;
DCI_ALLOC_t dci_alloc[8],dci_alloc_rx[8];
//Init LOG
logInit();
//vcd_signal_dumper_init();
set_comp_log(PHY,LOG_DEBUG,LOG_LOW,1);
//Parse options
_initDefaults(&opts);
_parseOptions(&opts,argc,argv);
_printOptions(&opts);
_makeOutputDir(&opts);
//Init Lte Params
frame_parms=_lte_param_init(opts);
/*printf("frame_parms.pdsch_config_common.p_b:%d\n",frame_parms->pdsch_config_common.p_b);
printf("PHY_vars_UE->pdsch_config_dedicated.p_a:%d\n",PHY_vars_UE->pdsch_config_dedicated[0].p_a);
printf("PHY_vars_eNB->pdsch_config_dedicated.p_a:%d\n",PHY_vars_eNB->pdsch_config_dedicated[0].p_a);
printf("PHY_vars_UE->cqi_report_config.nomPDSCH_RS_EPRE_Offset:%d\n",PHY_vars_UE->cqi_report_config[0].nomPDSCH_RS_EPRE_Offset);
printf("PHY_vars_eNB->cqi_report_config.nomPDSCH_RS_EPRE_Offset:%d\n",PHY_vars_eNB->cqi_report_config[0].nomPDSCH_RS_EPRE_Offset);
*/
opts.SIZE_TXDATAF=FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX;
opts.SIZE_TXDATA=FRAME_LENGTH_COMPLEX_SAMPLES;
opts.SIZE_RXDATAF= (2*(frame_parms->ofdm_symbol_size*opts.nsymb));
opts.SIZE_RXDATA=FRAME_LENGTH_COMPLEX_SAMPLES;
printf("Size txdataF:\t%d \tsymbols x 512 subcarriers = %d OFDBM symbols\n",opts.SIZE_TXDATAF/512,opts.SIZE_TXDATAF);
printf("Size txdata: \t%d \tsamples x frame\n",opts.SIZE_TXDATA);
printf("Size rxdataF:\t%d \tsymbols x 512 subcarriers = %d OFDM symbols just 2 subframes\n", opts.SIZE_RXDATAF/512, opts.SIZE_RXDATAF);
printf("Size rxdata: \t%d \tsamples x frame\n",opts.SIZE_RXDATA);
//****************************************************
if (opts.common_flag == 0) {
switch (opts.N_RB_DL) {
case 6:
if (opts.rballocset==0)
{DLSCH_RB_ALLOC = 0x3f;}
BW = 1.25;
num_pdcch_symbols = 4;
break;
case 25:
if (opts.rballocset==0) {
DLSCH_RB_ALLOC2[0]=_allocRBs(&opts,0);
DLSCH_RB_ALLOC2[1]= _allocRBs(&opts,1);}
//DLSCH_RB_ALLOC2[0] = 0x1f80;
//DLSCH_RB_ALLOC2[1] = 0x7f;}
BW = 7.68;
break;
case 50:
if (opts.rballocset==0)
{//DLSCH_RB_ALLOC = 0x1ffff;
DLSCH_RB_ALLOC2[0] = 0x1fe00;
DLSCH_RB_ALLOC2[1] = 0x1ff;}
BW = 10.00;
break;
case 100:
if (opts.rballocset==0)
{//DLSCH_RB_ALLOC = 0x1ffffff;
DLSCH_RB_ALLOC2[0] = 0x1ffe000;
DLSCH_RB_ALLOC2[1] = 0x1fff;}
BW = 20.00;
break;
}
DLSCH_RB_ALLOC2[2]=DLSCH_RB_ALLOC2[0];
DLSCH_RB_ALLOC2[3]=DLSCH_RB_ALLOC2[1];
NB_RB2[0]=conv_nprb(0,(u32)DLSCH_RB_ALLOC2[0],opts.N_RB_DL);
NB_RB2[1]=conv_nprb(0,(u32)DLSCH_RB_ALLOC2[1],opts.N_RB_DL);
NB_RB2[2]=conv_nprb(0,(u32)DLSCH_RB_ALLOC2[2],opts.N_RB_DL);
NB_RB2[3]=conv_nprb(0,(u32)DLSCH_RB_ALLOC2[3],opts.N_RB_DL);
//NB_RB=conv_nprb(0,DLSCH_RB_ALLOC,opts.N_RB_DL);
}
else
NB_RB = 4;
NB_RB2[0]=conv_nprb(0,(u32)DLSCH_RB_ALLOC2[0],opts.N_RB_DL);
NB_RB2[1]=conv_nprb(0,(u32)DLSCH_RB_ALLOC2[1],opts.N_RB_DL);
NB_RB2[2]=conv_nprb(0,(u32)DLSCH_RB_ALLOC2[2],opts.N_RB_DL);
NB_RB2[3]=conv_nprb(0,(u32)DLSCH_RB_ALLOC2[3],opts.N_RB_DL);
NB_RB=conv_nprb(0,(u32)DLSCH_RB_ALLOC,opts.N_RB_DL);
//****************************************************
#ifdef XFORMS
fl_initialize (&argc, argv, NULL, 0, 0);
form = create_form_lte_scope();
sprintf (title, "LTE DLSIM SCOPE");
fl_show_form (form->lte_scope, FL_PLACE_HOTSPOT, FL_FULLBORDER, title);
#endif
_allocData(opts,&data,opts.n_tx,opts.n_rx,FRAME_LENGTH_COMPLEX_SAMPLES);
_fill_Ul_CCCH_DLSCH_Alloc(opts);
_generatesRandomChannel(opts);
_allocDLSChannel(opts); // ??
_generateDCI(opts,dci_alloc,dci_alloc_rx);
fprintf(opts.outputFile,"s%d=[",opts.testNumber);
fprintf(opts.outputBer,"b%d=[",opts.testNumber);
fprintf(opts.outputTrougput,"t%d=[",opts.testNumber);
_makeSimulation(data,opts,dci_alloc,dci_alloc_rx,NB_RB2,frame_parms,num_pdcch_symbols);
_freeMemory(data,opts);
fprintf(opts.outputFile,"];\n");
fprintf(opts.outputBer,"];\n");
fprintf(opts.outputTrougput,"];\n");
fclose(opts.outputFile);
fclose(opts.outputBler);
fclose(opts.outputBer);
fclose(opts.outputTrougput);
return 0;
}
void _initDefaults(options_t *opts) {
opts->snr_init =0;
opts->snr_max=20;
opts->snr_step=0.1;
opts->nframes=1;
opts->nsymb=14;
opts->frame_type=1; //1 FDD
opts->transmission_mode=1; //
opts->n_tx=1;
opts->n_rx=1;
opts->nInterf=0;
opts->Nid_cell=0;
opts->oversampling=1;
opts->channel_model=Rayleigh1;
opts->channel_modeli=Rayleigh1;
opts->dbInterf=NULL;
opts->awgn_flag=0;
opts->awgn_flagi=0;
opts->common_flag=0;
opts->TPC=0;
opts->n_rnti=0x1234; //Ratio Network Temporary Identifiers
opts->mcs=0;
opts->nprb2=25;
opts->search_prb2=0;
opts->extended_prefix_flag=0; //false
opts->nsymb=14; // Prefix normal
opts->pilot1 = 4;
opts->pilot2 = 7;
opts->pilot3 = 11;
opts->num_rounds=4;
opts->fix_rounds=0;
opts->subframe=7;
opts->amp=AMP; //1024
opts->dci_flag=0;
opts->N_RB_DL=25;
opts->rballocset=0;
opts->DLSCH_RB_ALLOC = 0x1fff;
opts->ratio=1;
opts->prob_flag=0;
opts->testNumber=0;
sprintf(opts->interfLevels," ");
opts->n_adj_cells=0;
opts->dual_stream_UE = 0;
opts->perfect_ce=0;
opts->p_b=0;
opts->p_a=dB0; // To be 0 need
opts->d_offset=0;
}
LTE_DL_FRAME_PARMS* _lte_param_init(options_t opts) {
int i;
printf("Start lte_param_init\n");
PHY_vars_eNB = malloc(sizeof(PHY_VARS_eNB));
PHY_vars_UE = malloc(sizeof(PHY_VARS_UE));
mac_xface = malloc(sizeof(MAC_xface));
LTE_DL_FRAME_PARMS *lte_frame_parms = &(PHY_vars_eNB->lte_frame_parms);
lte_frame_parms->N_RB_DL = opts.N_RB_DL;
lte_frame_parms->N_RB_UL = opts.N_RB_DL;
lte_frame_parms->Ncp = opts.extended_prefix_flag;
lte_frame_parms->Nid_cell = opts.Nid_cell;
lte_frame_parms->nushift = (opts.Nid_cell)%6;
lte_frame_parms->nb_antennas_tx = opts.n_tx;
lte_frame_parms->nb_antennas_rx = opts.n_rx;
lte_frame_parms->nb_antennas_tx_eNB = opts.n_tx;
lte_frame_parms->phich_config_common.phich_resource = oneSixth; //TODO Why??
lte_frame_parms->tdd_config = 3;
lte_frame_parms->frame_type = opts.frame_type;
lte_frame_parms->mode1_flag = (opts.transmission_mode == 1)? 1 : 0;
srand(1);
randominit(0);
set_taus_seed(0);
init_frame_parms(lte_frame_parms,opts.oversampling);
phy_init_top(lte_frame_parms);
//para que se usan estos ??
lte_frame_parms->twiddle_fft = twiddle_fft;
lte_frame_parms->twiddle_ifft = twiddle_ifft;
lte_frame_parms->rev = rev;
PHY_vars_UE->is_secondary_ue = 0;
PHY_vars_UE->lte_frame_parms = *lte_frame_parms;
PHY_vars_eNB->lte_frame_parms = *lte_frame_parms;
phy_init_lte_top(lte_frame_parms);
dump_frame_parms(lte_frame_parms); //print
//set number of adjacent cell for channel estimation
PHY_vars_UE->PHY_measurements.n_adj_cells=opts.n_adj_cells;
//Init de Cell Id of adjacent cells to estimate
for(i=1;i<=opts.n_adj_cells;i++)
{
PHY_vars_UE->PHY_measurements.adj_cell_id[i-1] = (opts.Nid_cell+i)%6;
}
for (i=0; i<3; i++)
lte_gold(lte_frame_parms,PHY_vars_UE->lte_gold_table[i],opts.Nid_cell+i);
phy_init_lte_ue(PHY_vars_UE,2,0);
phy_init_lte_eNB(PHY_vars_eNB,0,0,0);
// Set p_a and p_b
PHY_vars_eNB->lte_frame_parms.pdsch_config_common.p_b=opts.p_b;
PHY_vars_eNB->pdsch_config_dedicated->p_a=opts.p_a;
PHY_vars_UE->lte_frame_parms.pdsch_config_common.p_b=opts.p_b;
PHY_vars_UE->pdsch_config_dedicated->p_a=opts.p_a;
PHY_vars_UE->n_connected_eNB=2;
//Init interference nodes
interf_PHY_vars_eNB=null;
if (opts.nInterf>0)
{
interf_PHY_vars_eNB = (PHY_VARS_eNB **)malloc(opts.nInterf*sizeof(PHY_VARS_eNB *));
for (i=0; i<opts.nInterf; i++)
{
interf_PHY_vars_eNB[i]=malloc(sizeof(PHY_VARS_eNB));
memcpy(&interf_PHY_vars_eNB[i]->lte_frame_parms,lte_frame_parms,sizeof(LTE_DL_FRAME_PARMS));
interf_PHY_vars_eNB[i]->lte_frame_parms.Nid_cell=opts.Nid_cell+i+1;
interf_PHY_vars_eNB[i]->lte_frame_parms.nushift=(opts.Nid_cell+i+1)%6;
//printf("NRB: %d\n", interf_PHY_vars_eNB[i]->lte_frame_parms.N_RB_DL);
interf_PHY_vars_eNB[i]->Mod_id=i+1;
phy_init_lte_eNB(interf_PHY_vars_eNB[i],0,0,0);
interf_PHY_vars_eNB[i]->lte_frame_parms.pdsch_config_common.p_b=opts.p_b;
interf_PHY_vars_eNB[i]->pdsch_config_dedicated->p_a=opts.p_a;
}
}
// DL power control init
/*pdsch_config_dedicated->p_a = opts.p_a; // 4 = 0dB
pdsch_config_common->p_b = opts.p_b;*/
printf("Done lte_param_init\n");
return &PHY_vars_eNB->lte_frame_parms;
}
void _fill_Ul_CCCH_DLSCH_Alloc(options_t opts) {
PHY_vars_UE->lte_ue_pdcch_vars[0]->crnti = opts.n_rnti;
UL_alloc_pdu.type = 0;
UL_alloc_pdu.hopping = 0;
UL_alloc_pdu.rballoc = UL_RB_ALLOC;
UL_alloc_pdu.mcs = 1;
UL_alloc_pdu.ndi = 1;
UL_alloc_pdu.TPC = 0;
UL_alloc_pdu.cqi_req = 1;
CCCH_alloc_pdu.type = 0;
CCCH_alloc_pdu.vrb_type = 0;
CCCH_alloc_pdu.rballoc = CCCH_RB_ALLOC;
CCCH_alloc_pdu.ndi = 1;
CCCH_alloc_pdu.mcs = 1;
CCCH_alloc_pdu.harq_pid = 0;
DLSCH_alloc_pdu2_1.rah = 0;
DLSCH_alloc_pdu2_1.rballoc = DLSCH_RB_ALLOC;
DLSCH_alloc_pdu2_1.TPC = 0;
DLSCH_alloc_pdu2_1.dai = 0;
DLSCH_alloc_pdu2_1.harq_pid = 0;
//DLSCH_alloc_pdu2_1E.tb_swap = 0;
DLSCH_alloc_pdu2_1.mcs = opts.mcs;
DLSCH_alloc_pdu2_1.ndi = 1;
DLSCH_alloc_pdu2_1.rv = 0;
// Forget second codeword
//TVT: is this needed? DLSCH_alloc_pdu2_1.tpmi = (opts.transmission_mode>=5 ? 5 : 0); // precoding
//TVT: is this needed? DLSCH_alloc_pdu2_1.dl_power_off = (opts.transmission_mode==5 ? 0 : 1);
}
void _generatesRandomChannel(options_t opts) {
int i;
eNB2UE = new_channel_desc_scm(PHY_vars_eNB->lte_frame_parms.nb_antennas_tx,
PHY_vars_UE->lte_frame_parms.nb_antennas_rx,
opts.channel_model,
BW,0.0,0,0);
if (eNB2UE==NULL)
{
msg("Problem generating channel model. Exiting.\n");
exit(-1);
}
//Channel of interferents
interf_eNB2UE=malloc(opts.nInterf*sizeof(channel_desc_t));
for(i=0;i<opts.nInterf;i++)
{
interf_eNB2UE[i]=new_channel_desc_scm(PHY_vars_eNB->lte_frame_parms.nb_antennas_tx,
PHY_vars_UE->lte_frame_parms.nb_antennas_rx,
opts.channel_modeli,BW,0,0,0);
if (interf_eNB2UE[i]==NULL)
{
msg("Problem generating channel model. For interferent %d Exiting.\n",i+1);
exit(-1);
}
}
}
void _allocDLSChannel(options_t opts) {
int i,j;
for (i=0; i<2; i++)
{
//eNB
PHY_vars_eNB->dlsch_eNB[0][i] = new_eNB_dlsch(1,8,opts.N_RB_DL,0);
PHY_vars_eNB->dlsch_eNB[0][i]->dl_power_off =1;
if (!PHY_vars_eNB->dlsch_eNB[0][i]) {
printf("Can't get eNB dlsch structures\n");
exit(-1);
}
PHY_vars_eNB->dlsch_eNB[0][i]->rnti = opts.n_rnti;
//computeRhoA_eNB(PHY_vars_eNB->pdsch_config_dedicated,PHY_vars_eNB->dlsch_eNB[0][i]);
// computeRhoB_eNB(PHY_vars_eNB->pdsch_config_dedicated,&PHY_vars_eNB->lte_frame_parms.pdsch_config_common,PHY_vars_eNB->lte_frame_parms.nb_antennas_tx,PHY_vars_eNB->dlsch_eNB[0][i]);
for(j=0;j<opts.nInterf;j++)
{
interf_PHY_vars_eNB[j]->dlsch_eNB[0][i]=new_eNB_dlsch(1,8,opts.N_RB_DL,0);
interf_PHY_vars_eNB[j]->dlsch_eNB[0][i]->dl_power_off =1;
if (!interf_PHY_vars_eNB[j]->dlsch_eNB[0][i]) {
printf("Can't get interferer eNB dlsch structures\n");
exit(-1);
}
interf_PHY_vars_eNB[j]->dlsch_eNB[0][i]->rnti = opts.n_rnti;
// computeRhoA_eNB(interf_PHY_vars_eNB[j]->pdsch_config_dedicated,interf_PHY_vars_eNB[j]->dlsch_eNB[0][i]);
// computeRhoB_eNB(interf_PHY_vars_eNB[j]->pdsch_config_dedicated,&interf_PHY_vars_eNB[j]->lte_frame_parms.pdsch_config_common,interf_PHY_vars_eNB[j]->lte_frame_parms.nb_antennas_tx,interf_PHY_vars_eNB[j]->dlsch_eNB[0][i]);
}
//UE
PHY_vars_UE->dlsch_ue[0][i] = new_ue_dlsch(1,8,MAX_TURBO_ITERATIONS,opts.N_RB_DL,0);
// PHY_vars_UE->dlsch_ue[0][i] = new_ue_dlsch(1,8,MAX_TURBO_ITERATIONS,0);
if (!PHY_vars_UE->dlsch_ue[0][i]) {
printf("Can't get ue dlsch structures\n");
exit(-1);
}
PHY_vars_UE->dlsch_ue[0][i]->rnti = opts.n_rnti;
// computeRhoA_UE(PHY_vars_UE->pdsch_config_dedicated,PHY_vars_UE->dlsch_ue[0][i]);
// computeRhoB_UE(PHY_vars_UE->pdsch_config_dedicated,&PHY_vars_UE->lte_frame_parms.pdsch_config_common,PHY_vars_UE->lte_frame_parms.nb_antennas_tx,PHY_vars_UE->dlsch_ue[0][i]);
}
//TVT: this is for DCI format 1B,D and 2 ----------------------
//if (DLSCH_alloc_pdu2_1.tpmi == 5)
//PHY_vars_eNB->eNB_UE_stats[0].DL_pmi_single = (unsigned short)(taus()&0xffff);//DL PMI Single Stream. (precoding matrix indicator)
//else
//PHY_vars_eNB->eNB_UE_stats[0].DL_pmi_single = 0;
// compute_sqrt_RhoAoRhoB( PHY_vars_eNB->pdsch_config_dedicated,
// &PHY_vars_eNB->lte_frame_parms.pdsch_config_common,opts.n_tx,PHY_vars_UE->dlsch_ue[0][0]);
//---------------------------------
}
void _generateDCI(options_t opts,DCI_ALLOC_t *dci_alloc,DCI_ALLOC_t *dci_alloc_rx)
{
int num_dci = 0,i;
int dci_length_bytes=0,dci_length=0;
// UE specific DCI
//*******************************************************
if (opts.common_flag == 0) {
if (PHY_vars_eNB->lte_frame_parms.frame_type == TDD) {
switch (PHY_vars_eNB->lte_frame_parms.N_RB_DL) {
case 6:
dci_length = sizeof_DCI1_1_5MHz_TDD_t;
dci_length_bytes = sizeof(DCI1_1_5MHz_TDD_t);
((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rah = 0;
((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rballoc = DLSCH_RB_ALLOC;
((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->TPC = 0;
((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->dai = 0;
((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->harq_pid = 0;
((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->mcs = opts.mcs;
((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->ndi = 1;
((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rv = 0;
break;
case 25:
dci_length = sizeof_DCI1_5MHz_TDD_t;
dci_length_bytes = sizeof(DCI1_5MHz_TDD_t);
((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rah = 0;
((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rballoc = DLSCH_RB_ALLOC;
((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->TPC = 0;
((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->dai = 0;
((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->harq_pid = 0;
((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->mcs = opts.mcs;
((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->ndi = 1;
((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rv = 0;
break;
case 50:
dci_length = sizeof_DCI1_10MHz_TDD_t;
dci_length_bytes = sizeof(DCI1_10MHz_TDD_t);
((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rah = 0;
((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rballoc = DLSCH_RB_ALLOC;
((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1)->TPC = 0;
((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1)->dai = 0;
((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1)->harq_pid = 0;
((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1)->mcs = opts.mcs;
((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1)->ndi = 1;
((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rv = 0;
break;
case 100:
((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rah = 0;
((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rballoc = DLSCH_RB_ALLOC;
((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1)->TPC = 0;
((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1)->dai = 0;
((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1)->harq_pid = 0;
((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1)->mcs = opts.mcs;
((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1)->ndi = 1;
((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rv = 0;
dci_length = sizeof_DCI1_20MHz_TDD_t;
dci_length_bytes = sizeof(DCI1_20MHz_TDD_t);
break;
}
}
else {
switch (PHY_vars_eNB->lte_frame_parms.N_RB_DL) {
case 6:
dci_length = sizeof_DCI1_1_5MHz_FDD_t;
dci_length_bytes = sizeof(DCI1_1_5MHz_FDD_t);
((DCI1_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1)->rah = 0;
((DCI1_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1)->rballoc = DLSCH_RB_ALLOC;
((DCI1_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1)->TPC = 0;
((DCI1_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1)->harq_pid = 0;
((DCI1_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1)->mcs = opts.mcs;
((DCI1_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1)->ndi = 1;
((DCI1_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1)->rv = 0;
break;
case 25:
dci_length = sizeof_DCI1_5MHz_FDD_t;
dci_length_bytes = sizeof(DCI1_5MHz_FDD_t);
((DCI1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1)->rah = 0;
((DCI1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1)->rballoc = DLSCH_RB_ALLOC;
((DCI1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1)->TPC = 0;
((DCI1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1)->harq_pid = 0;
((DCI1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1)->mcs = opts.mcs;
((DCI1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1)->ndi = 1;
((DCI1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1)->rv = 0;
break;
case 50:
dci_length = sizeof_DCI1_10MHz_FDD_t;
dci_length_bytes = sizeof(DCI1_10MHz_FDD_t);
((DCI1_10MHz_FDD_t *)&DLSCH_alloc_pdu_1)->rah = 0;
((DCI1_10MHz_FDD_t *)&DLSCH_alloc_pdu_1)->rballoc = DLSCH_RB_ALLOC;
((DCI1_10MHz_FDD_t *)&DLSCH_alloc_pdu_1)->TPC = 0;
((DCI1_10MHz_FDD_t *)&DLSCH_alloc_pdu_1)->harq_pid = 0;
((DCI1_10MHz_FDD_t *)&DLSCH_alloc_pdu_1)->mcs = opts.mcs;
((DCI1_10MHz_FDD_t *)&DLSCH_alloc_pdu_1)->ndi = 1;
((DCI1_10MHz_FDD_t *)&DLSCH_alloc_pdu_1)->rv = 0;
break;
case 100:
dci_length = sizeof_DCI1_20MHz_FDD_t;
dci_length_bytes = sizeof(DCI1_20MHz_FDD_t);
((DCI1_20MHz_FDD_t *)&DLSCH_alloc_pdu_1)->rah = 0;
((DCI1_20MHz_FDD_t *)&DLSCH_alloc_pdu_1)->rballoc = DLSCH_RB_ALLOC;
((DCI1_20MHz_FDD_t *)&DLSCH_alloc_pdu_1)->TPC = 0;
((DCI1_20MHz_FDD_t *)&DLSCH_alloc_pdu_1)->harq_pid = 0;
((DCI1_20MHz_FDD_t *)&DLSCH_alloc_pdu_1)->mcs = opts.mcs;
((DCI1_20MHz_FDD_t *)&DLSCH_alloc_pdu_1)->ndi = 1;
((DCI1_20MHz_FDD_t *)&DLSCH_alloc_pdu_1)->rv = 0;
break;
}
}
//*******************************************************
memcpy(&dci_alloc[num_dci].dci_pdu[0],&DLSCH_alloc_pdu_1,dci_length_bytes);
dci_alloc[num_dci].dci_length = dci_length;
dci_alloc[num_dci].L = 2;
dci_alloc[num_dci].rnti = opts.n_rnti;
dci_alloc[num_dci].nCCE = 0;
dci_alloc[num_dci].format = format1;//TVT: E_2A_M10PRB; for format 1 instead of 1E
}
generate_eNB_dlsch_params_from_dci(0,
&DLSCH_alloc_pdu_1,
opts.n_rnti,
format1,//TVT:E_2A_M10PRB,
PHY_vars_eNB->dlsch_eNB[0],
&PHY_vars_eNB->lte_frame_parms, PHY_vars_eNB->pdsch_config_dedicated,
SI_RNTI,
0,
P_RNTI,
PHY_vars_eNB->eNB_UE_stats[0].DL_pmi_single);
for(i=0;i<opts.nInterf;i++)
{
generate_eNB_dlsch_params_from_dci(0,
&DLSCH_alloc_pdu_1,
opts.n_rnti,
format1,//TVT: E_2A_M10PRB,
interf_PHY_vars_eNB[i]->dlsch_eNB[0],
&(interf_PHY_vars_eNB[i])->lte_frame_parms, PHY_vars_eNB->pdsch_config_dedicated,
SI_RNTI,
0,
P_RNTI,
interf_PHY_vars_eNB[i]->eNB_UE_stats[0].DL_pmi_single);
}
}
void _freeMemory(data_t data,options_t opts)
{
int i;
printf("Freeing channel I/O\n");
for (i=0; i<opts.n_tx; i++) {
free(data.s_re[i]);
free(data.s_im[i]);
free(data.r_re[i]);
free(data.r_im[i]);
}
free(data.s_re);
free(data.s_im);
free(data.r_re);
free(data.r_im);
printf("Freeing dlsch structures\n");
for (i=0; i<2; i++) {
printf("eNB %d\n",i);
free_eNB_dlsch(PHY_vars_eNB->dlsch_eNB[0][i]);
printf("UE %d\n",i);
free_ue_dlsch(PHY_vars_UE->dlsch_ue[0][i]);
}
}
void _printResults(u32 *errs,u32 *round_trials,u32 dci_errors,double rate)
{
printf("\tErrors/trials (%d/%d, %d/%d ,%d/%d ,%d/%d) Pe = (%e,%e,%e,%e) \n\tdci_errors %d/%d, Pe = %e \n\teffective rate \t%f (%f) \n\tnormalized delay\t %f (%f)\n",
errs[0],
round_trials[0],
errs[1],
round_trials[1],
errs[2],
round_trials[2],
errs[3],
round_trials[3],
(double)errs[0]/(round_trials[0]),
(double)errs[1]/(round_trials[0]+round_trials[1]),
(double)errs[2]/(round_trials[0]+round_trials[1]+round_trials[2]),
(double)errs[3]/(round_trials[0]+round_trials[1]+round_trials[2]+round_trials[3]),
dci_errors,
round_trials[0],
(double)dci_errors/(round_trials[0]),
rate*((double)(round_trials[0]-dci_errors)/((double)round_trials[0] + round_trials[1] + round_trials[2] + round_trials[3])),
rate,
(1.0*(round_trials[0]-errs[0])+2.0*(round_trials[1]-errs[1])+3.0*(round_trials[2]-errs[2])+4.0*(round_trials[3]-errs[3]))/((double)round_trials[0])/(double)PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->TBS,
(1.0*(round_trials[0]-errs[0])+2.0*(round_trials[1]-errs[1])+3.0*(round_trials[2]-errs[2])+4.0*(round_trials[3]-errs[3]))/((double)round_trials[0]));
}
void _printFileResults(double SNR,double rate1, double rate,u32 *errs,u32 *round_trials,u32 dci_errors,options_t opts,double BER)
{
fprintf(opts.outputFile,"%f %f;\n", SNR, (float)errs[0]/round_trials[0]);
fprintf(opts.outputBler,"%f;%f;%d;%d;%f;%d;%d;%d;%d;%d;%d;%d;%d;%d;%d;%d\n",
SNR,
rate1,
opts.mcs,
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->TBS,
rate,
errs[0],
round_trials[0],
errs[1],
round_trials[1],
errs[2],
round_trials[2],
errs[3],
round_trials[3],
dci_errors,
opts.nprb1,
opts.nprb2);
fprintf(opts.outputBer,"%f %f;\n",SNR, BER);
}
void _initErrsRoundsTrials(u32 **errs,u32 **trials,int allocFlag,options_t opts)
{
int i=0;
if (allocFlag==1)
{
*errs=(u32*)malloc(4*sizeof(u32));
*trials=(u32*)malloc(4*sizeof(u32));
}
for (i=0; i<4; i++)
{
(*errs)[i]=0;
(*trials)[i]=0;
}
}
void _fillData(options_t opts,data_t data,int numSubFrames)
{
u32 aux=2*opts.subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti;
int i,aa,j;
//Copy numframes
for (i=0; i<numSubFrames*frame_parms->samples_per_tti; i++) // Size of one subframe * numframes
{
for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_tx; aa++)
{
data.s_re[aa][i] = ((double)(((short *)PHY_vars_eNB->lte_eNB_common_vars.txdata[0][aa]))[aux + (i<<1)]);
data.s_im[aa][i] = ((double)(((short *)PHY_vars_eNB->lte_eNB_common_vars.txdata[0][aa]))[aux +(i<<1)+1]);
for(j=0;j<opts.nInterf;j++)
{
data.is_re[j][aa][i] = ((double)(((short *)interf_PHY_vars_eNB[j]->lte_eNB_common_vars.txdata[0][aa]))[aux + (i<<1)]);
data.is_im[j][aa][i] = ((double)(((short *)interf_PHY_vars_eNB[j]->lte_eNB_common_vars.txdata[0][aa]))[aux +(i<<1)+1]);
}
}
}
}
void _applyInterference(options_t opts,data_t data,double sigma2,double iqim,int numSubFrames)
{
int i,aa,j;
if(opts.nInterf<=0)
return;
for (i=0; i<numSubFrames*frame_parms->samples_per_tti; i++)
{
for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_rx; aa++)
{
for(j=0;j<opts.nInterf;j++)
{
//prob_flag=1 means that interference is active with a probability of opts->probabilityInterf[i]
if(opts.prob_flag){
// printf("\n interf probability: %f",opts.probabilityInterf[j]);
if(opts.probabilityInterf[j]>((double)rand() / (double)RAND_MAX) ){
//printf("aplica interf \n");
data.r_re[aa][i] += (pow(10.0,.05*opts.dbInterf[j])*data.ir_re[j][aa][i]);
data.r_im[aa][i] += (pow(10.0,.05*opts.dbInterf[j])*data.ir_im[j][aa][i]);}
}
else{
//printf("caso anterior \n");
data.r_re[aa][i] += (pow(10.0,.05*opts.dbInterf[j])*data.ir_re[j][aa][i]);
data.r_im[aa][i] += (pow(10.0,.05*opts.dbInterf[j])*data.ir_im[j][aa][i]);
}
//printf("no aplica interf \n");
}
}
}
}
void _applyNoise(options_t opts, data_t data,double sigma2,double iqim,int numSubFrames)
{
u32 aux=2*opts.subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti;
// printf("\naux:%d\n",aux);
int i,aa;
for (i=0; i<numSubFrames*frame_parms->samples_per_tti; i++)
{
for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_rx; aa++) {
if( NOISE)
{
((short*) PHY_vars_UE->lte_ue_common_vars.rxdata[aa])[(aux)+2*i] = (short) (data.r_re[aa][i] + sqrt(sigma2/2)*gaussdouble(0.0,1.0));
((short*) PHY_vars_UE->lte_ue_common_vars.rxdata[aa])[(aux)+2*i+1] = (short) (data.r_im[aa][i] + (iqim*data.r_re[aa][i]) + sqrt(sigma2/2)*gaussdouble(0.0,1.0));
}else
{
((short*) PHY_vars_UE->lte_ue_common_vars.rxdata[aa])[(aux)+2*i] = (short) (data.r_re[aa][i]);
((short*) PHY_vars_UE->lte_ue_common_vars.rxdata[aa])[(aux)+2*i+1] = (short) (data.r_im[aa][i]) ;
}
}
}
}
u8 _generate_dci_top(int num_ue_spec_dci,int num_common_dci,DCI_ALLOC_t *dci_alloc,options_t opts,u8 num_pdcch_symbols)
{
u8 num_pdcch_symbols_2=0,aux=0;
int i;
//TODO: We apply rho_b to DCI information because we part that in this simulation we
//use just the first symbol, but in other simulation that use more than one, it's necesary
//change the function to apply rho_b or rho_a in the correct symbol
//This routine codes an set of DCI PDUs and performs PDCCH modulation, interleaving and mapping.
num_pdcch_symbols_2= generate_dci_top(num_ue_spec_dci,
num_common_dci,
dci_alloc,
0,
1024,//(s16)(((s32)AMP*PHY_vars_eNB->dlsch_eNB[0][0]->sqrt_rho_b)>>13),
&PHY_vars_eNB->lte_frame_parms,
PHY_vars_eNB->lte_eNB_common_vars.txdataF[opts.Nid_cell],
opts.subframe);
//
//printf("num_pdcch_symbols %d , num_pdcch_symbols_2 %d=> ",num_pdcch_symbols,num_pdcch_symbols_2);
if (num_pdcch_symbols_2 > num_pdcch_symbols) {
msg("Error: given num_pdcch_symbols not big enough\n");
exit(-1);
}
for(i=0;i<opts.nInterf;i++)
{
aux=generate_dci_top(num_ue_spec_dci,
num_common_dci,
dci_alloc,
0,
0,//(s16)(((s32)AMP*PHY_vars_eNB->dlsch_eNB[0][0]->sqrt_rho_b)>>13),
&PHY_vars_eNB->lte_frame_parms,
interf_PHY_vars_eNB[i]->lte_eNB_common_vars.txdataF[0],
opts.subframe);
if (aux > num_pdcch_symbols) {
msg("Error: given num_pdcch_symbols not big enough ...interferer %d\n",i);
exit(-1);
}
}
return num_pdcch_symbols_2;
}
u32 _allocRBs(options_t *opts,int ind)
{
static u32 allocRB;
static u32 allocRBs[25]={1,2,3,6,7,14,15,30,31,62,63,126,127,254,255,510,511,1022,1023,2046,2047,4094,4095,8190,8191};
switch (opts->N_RB_DL) {
case 6:
break;
case 25: //search_prb2 is a flag that means nprb2 will be optimized
if (opts->search_prb2){
switch(ind)
{
case 0:
case 2:
case 4:
case 6:
allocRB=allocRBs[opts->nprb1-1];
//printf("nprb1: %d, mcs: %d, allocRB: %X\n",opts->nprb1,opts->mcs,allocRB);
break;
case 1:
case 3:
case 5:
case 7:
allocRB=allocRBs[opts->nprb2-1];
opts->mcs2=29;
//printf("nprb2: %d, mcs: %d, allocRB: %X\n",opts->nprb2,opts->mcs,allocRB);
break;
}
}
else{
switch (opts->ratio){
case 1: // # of dimensions per round: 13/12
if (ind==0) {
allocRB=0x7f;
opts->mcs=4;}
else{
allocRB=0x1f80;
opts->mcs2=opts->mcs;}
break;
case 2: // 12/13
if (ind==0) {
allocRB=0x1f80;
opts->mcs=5;}
else{
allocRB=0x7f;
opts->mcs2=opts->mcs;}
break;
case 3: // 10/15
if (ind==0) {
allocRB=0x1f00;
opts->mcs=6;}
else{
allocRB=0xff;
opts->mcs2=opts->mcs;}
break;
case 4: // 8/17
if (ind==0) {
allocRB=0x1e00;
opts->mcs=7;}
else{
allocRB=0x1ff;
opts->mcs2=opts->mcs;}
break;
case 5: // 6/19
if (ind==0) {
allocRB=0x1c00;
opts->mcs=11;}
else{
allocRB=0x3ff;
opts->mcs2=opts->mcs;}
break;
case 6: // 4/21
if (ind==0) {
allocRB=0x1800;
opts->mcs=14;}
else{
allocRB=0x7ff;
opts->mcs2=opts->mcs;}
break;
case 7: // 2/23
if (ind==0) {
allocRB=0x1000;
opts->mcs=23;}
else{
allocRB=0xfff;
opts->mcs2=opts->mcs;}
break;
case 8: // 15/10
if (ind==0) {
allocRB=0xff;
opts->mcs=4;}
else{
allocRB=0x1f00;
opts->mcs2=opts->mcs;}
break;
case 9: // 17/8
if (ind==0) {
allocRB=0x1ff;
opts->mcs=3;}
else{
allocRB=0x1e00;
opts->mcs2=opts->mcs;}
break;
case 91: // 2/23 force the 2nd round with QPSK and llrclear
if (ind==0) {
allocRB=0x1000;
opts->mcs=23;}
else{
allocRB=0xfff;
opts->mcs2=29;}
break;
case 92: // 6/19 force the 2nd round with QPSK
if (ind==0) {
allocRB=0x1c00;
opts->mcs=11;}
else{
allocRB=0x3ff;
opts->mcs2=29;}
break;
case 93: // 4/21 force the 2nd round with QPSK
if (ind==0) {
allocRB=0x1800;
opts->mcs=14;}
else{
allocRB=0x7ff;
opts->mcs2=29;}
break;
case 94: // 2/23 force the 2nd round with 16QAM
if (ind==0) {
allocRB=0x1000;
opts->mcs=23;}
else{
allocRB=0xfff;
opts->mcs2=30;}
break;
case 10: // 19/6
if (ind==0) {
allocRB=0x3ff;
opts->mcs=3;}
else{
allocRB=0x1c00;
opts->mcs2=opts->mcs;}
break;
case 11: // 21/4
if (ind==0) {
allocRB=0x7ff;
opts->mcs=2;}
else{
allocRB=0x1800;
opts->mcs2=opts->mcs;}
break;
case 12: // 5/25
if (ind==0) {
allocRB=0x1801;
opts->mcs=12;}
else{
allocRB=0x7fe;
opts->mcs2=opts->mcs;}
break;
default:
allocRB = 0x1fff;
opts->mcs=0;
break;}
}
break;
case 50:
break;
case 100:
break;
}
return allocRB;
}
void _get_nprb1(options_t *opts)
{
static u32 nprb1[28]={25,23,18,14,12,10,8,7,6,6,6,5,4,4,4,3,3,3,3,3,3,2,2,2,2,2,2,1};
opts->nprb1=nprb1[opts->mcs-1];
}
void _makeSimulation(data_t data,options_t opts,DCI_ALLOC_t *dci_alloc,DCI_ALLOC_t *dci_alloc_rx,u32 *NB_RB2,LTE_DL_FRAME_PARMS *frame_parms,u8 num_pdcch_symbols)
{
u32 *errs,*round_trials;
unsigned char *input_buffer;
unsigned char **interferer_input_buffer=null;
unsigned short input_buffer_length;
double raw_ber;
double rawberT;
int numresults;
//Index and counters
int aa; //Antennas index
int i,j;//ind,mcsi[2]={3,4}; //General index for arrays
u32 round;
double SNR;
u32 dci_errors=0;
u32 cont_frames=0;
u8 Ns,l,m;
//Variables
u32 tbs,coded_bits_per_codeword;
int num_common_dci=0,num_ue_spec_dci=1;
double rate=0,rate1=0, sigma2, sigma2_dB=10,uncoded_ber,avg_ber;
short *uncoded_ber_bit;
unsigned int dci_cnt,dlsch_active=0;
unsigned int tx_lev,tx_lev_dB=0,*itx_lev=null,*itxlev_dB=null; // Signal Power
//Other defaults values
u8 i_mod = 2;
//u8 num_pdcch_symbols=1,num_pdcch_symbols_2=0;
u8 num_pdcch_symbols_2=0;
int eNB_id_i = 1;//Id Interferer;
int idUser=0; //index of number of user, this program use just one user allowed in position 0 of PHY_vars_eNB->dlsch_eNB
//Just allow transmision mode 1
double numOFDMSymbSubcarrier;
//Status flags
s32 status;
u32 ret;
int re_allocated;
//Init Pointers to 8 HARQ processes for the DLSCH
//printf("PHY_vars_eNB->dlsch_eNB[idUser][0]->harq_processes[0]->TBS: %d\n",(PHY_vars_eNB->dlsch_eNB[idUser][0]->harq_processes[0]->TBS));
input_buffer_length = PHY_vars_eNB->dlsch_eNB[idUser][0]->harq_processes[0]->TBS/8;
input_buffer = (unsigned char *)malloc(input_buffer_length+4);
memset(input_buffer,0,input_buffer_length+4);
for (i=0; i<input_buffer_length; i++) {
input_buffer[i]= (unsigned char)(unsigned char)(taus()&0xff);
}
if(opts.nInterf>0)
{
interferer_input_buffer=(unsigned char**)malloc(opts.nInterf);
itx_lev=(unsigned int*)malloc(opts.nInterf*sizeof(unsigned int));
itxlev_dB=(unsigned int*)malloc(opts.nInterf*sizeof(unsigned int));
for(j=0;j<opts.nInterf;j++)
{
interferer_input_buffer[j]=(unsigned char *)malloc(input_buffer_length+4);
memset(interferer_input_buffer[j],0,input_buffer_length+4);
}
}
/*********************************************************************************/
/* TVT: this has to be done per round since NB_RB2 will be different
numOFDMSymbSubcarrier=PHY_vars_UE->lte_frame_parms.ofdm_symbol_size/(NB_RB2[0]*12);
printf("numOFDMSymbSubcarrier: %d\n",numOFDMSymbSubcarrier);*/
_initErrsRoundsTrials(&errs,&round_trials,1, opts);
//for (ind=1; ind<3; ind++)
//{
// opts.mcs=mcsi[ind-1];
_get_nprb1(&opts);
opts.nprb2=PHY_vars_eNB->lte_frame_parms.N_RB_DL;
for (SNR=opts.snr_init; SNR<=opts.snr_max; SNR+=opts.snr_step)
{
//opts.nprb2=PHY_vars_eNB->lte_frame_parms.N_RB_DL;
while(opts.nprb2>0){
printf("\n\nsnr: %f, nprb1: %d, nprb2: %d, mcs: %d\n",SNR,opts.nprb1,opts.nprb2,opts.mcs);
_initErrsRoundsTrials(&errs,&round_trials,0,opts);
dci_errors=0;
numresults=0;
raw_ber=0;
rawberT=0;
x=0;
totBits=0;
totErrors=0;
avg_ber = 0;
for (cont_frames = 0; cont_frames<opts.nframes; cont_frames++)
{
round=0;
eNB2UE->first_run = 1;
while (round < opts.num_rounds)
{
round_trials[round]++;
tx_lev = 0;
for(i=0;i<opts.nInterf;i++)
{
itx_lev[i]=0;
itxlev_dB[i]=0;
}
//Clear the the transmit data in the frequency domain for principal eNB and interferer eNB
for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_tx; aa++) {
memset(&PHY_vars_eNB->lte_eNB_common_vars.txdataF[opts.Nid_cell][aa][0],0,FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX*sizeof(mod_sym_t));
for(i=0;i<opts.nInterf;i++)
{
memset(interf_PHY_vars_eNB[i]->lte_eNB_common_vars.txdataF[0][aa],0,FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX*sizeof(mod_sym_t));
}
}
//Init input buffer for interferer
for(j=0;j<opts.nInterf;j++)
{
memset(interferer_input_buffer[j],0,input_buffer_length+4);
for (i=0; i<input_buffer_length; i++) {
interferer_input_buffer[j][i]= (unsigned char)(taus()&0xff);
}
}
/*Lid: Simulate HARQ procedures!!!
if (round == 0) // First round, set Ndi to 1 and rv to floor(round/2)
{
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->Ndi = 1;
//Lid:PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->rvidx = round>>1;
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->rvidx = round&3;
DLSCH_alloc_pdu2_1.ndi = 1; //New Data Indicator 1.
DLSCH_alloc_pdu2_1.rv = 0; //Redundancy version 0.
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu2_1,sizeof(DCI1_20MHz_TDD_t));
}
else // set Ndi to 0
{
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->Ndi = 0;
//Lid: PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->rvidx = round>>1;
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->rvidx = round&3;
DLSCH_alloc_pdu2_1.ndi = 0; //New Data Indicator 0.
//Lid:DLSCH_alloc_pdu2_1E.rv = round>>1; //Redundancy version 1.
DLSCH_alloc_pdu2_1.rv = round&3;
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu2_1,sizeof(DCI1_20MHz_TDD_t));
}*/
//*******************************************************
// TVT: This is the new stuff to change the BW and N_RB_DL
// Simulate HARQ procedures!!!
if (opts.common_flag == 0) {
if (round == 0) { // First round, set Ndi to 1 and rv to floor(round
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->Ndi = 1;
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->rvidx = round&3;
if (PHY_vars_eNB->lte_frame_parms.frame_type == TDD) {
switch (opts.transmission_mode) {
case 1:
case 2:
switch (PHY_vars_eNB->lte_frame_parms.N_RB_DL) {
case 6:
((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->ndi = 1;
((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rv = 0;
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1,sizeof(DCI1_1_5MHz_TDD_t));
break;
case 25:
((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->ndi = 1;
((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rv = 0;
// ((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rballoc = DLSCH_RB_ALLOC2[0];
((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rballoc = _allocRBs(&opts,0);
((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->mcs = opts.mcs;
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1,sizeof(DCI1_5MHz_TDD_t));
break;
case 50:
((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1)->ndi = 1;
((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rv = 0;
((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rballoc = DLSCH_RB_ALLOC2[0];
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1,sizeof(DCI1_10MHz_TDD_t));
break;
case 100:
((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1)->ndi = 1;
((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rv = 0;
((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rballoc = DLSCH_RB_ALLOC2[0];
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1,sizeof(DCI1_20MHz_TDD_t));
break;
}
break;
}
PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->first_Qm = get_Qm(opts.mcs);
}
else { // FDD TVT:not our case
switch (opts.transmission_mode) {
case 1:
case 2:
switch (PHY_vars_eNB->lte_frame_parms.N_RB_DL) {
case 6:
((DCI1_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1)->ndi = 1;
((DCI1_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1)->rv = 0;
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1,sizeof(DCI1_1_5MHz_FDD_t));
break;
case 25:
((DCI1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1)->ndi = 1;
((DCI1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1)->rv = 0;
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1,sizeof(DCI1_5MHz_FDD_t));
break;
case 50:
((DCI1_10MHz_FDD_t *)&DLSCH_alloc_pdu_1)->ndi = 1;
((DCI1_10MHz_FDD_t *)&DLSCH_alloc_pdu_1)->rv = 0;
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1,sizeof(DCI1_10MHz_FDD_t));
break;
case 100:
((DCI1_20MHz_FDD_t *)&DLSCH_alloc_pdu_1)->ndi = 1;
((DCI1_20MHz_FDD_t *)&DLSCH_alloc_pdu_1)->rv = 0;
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1,sizeof(DCI1_20MHz_FDD_t));
break;
}
break;
}
}
}
else { // set Ndi to 0 round>0
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->Ndi = 0;
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->rvidx = round&3;
if (PHY_vars_eNB->lte_frame_parms.frame_type == TDD) {
switch (opts.transmission_mode) {
case 1:
case 2:
switch (PHY_vars_eNB->lte_frame_parms.N_RB_DL) {
case 6:
((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->ndi = 0;
((DCI1_1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rv = round&3;;
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1,sizeof(DCI1_1_5MHz_TDD_t));
break;
case 25:
((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->ndi = 0;
((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rv = round&3;
((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rballoc = _allocRBs(&opts,round);
((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->mcs = opts.mcs2;
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1,sizeof(DCI1_5MHz_TDD_t));
//printf("round: %d\n",round);
break;
case 50:
((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1)->ndi = 0;
((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rv = round&3;
((DCI1_10MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rballoc = DLSCH_RB_ALLOC2[round];
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1,sizeof(DCI1_10MHz_TDD_t));
break;
case 100:
((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1)->ndi = 0;
((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rv = round&3;
((DCI1_20MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rballoc = DLSCH_RB_ALLOC2[round];
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1,sizeof(DCI1_20MHz_TDD_t));
break;
}
break;
}
}
else { //FDD TVT:not our case
switch (opts.transmission_mode) {
case 1:
case 2:
switch (PHY_vars_eNB->lte_frame_parms.N_RB_DL) {
case 6:
((DCI1_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1)->ndi = 0;
((DCI1_1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1)->rv = round&3;;
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1,sizeof(DCI1_1_5MHz_FDD_t));
break;
case 25:
((DCI1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1)->ndi = 0;
((DCI1_5MHz_FDD_t *)&DLSCH_alloc_pdu_1)->rv = round&3;
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1,sizeof(DCI1_5MHz_FDD_t));
break;
case 50:
((DCI1_10MHz_FDD_t *)&DLSCH_alloc_pdu_1)->ndi = 0;
((DCI1_10MHz_FDD_t *)&DLSCH_alloc_pdu_1)->rv = round&3;
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1,sizeof(DCI1_10MHz_FDD_t));
break;
case 100:
((DCI1_20MHz_FDD_t *)&DLSCH_alloc_pdu_1)->ndi = 0;
((DCI1_20MHz_FDD_t *)&DLSCH_alloc_pdu_1)->rv = round&3;
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu_1,sizeof(DCI1_20MHz_FDD_t));
break;
}
break;
}
}
}
}
//TVT: since we changed the dci_rballoc, we have to call this function again.
generate_eNB_dlsch_params_from_dci(0,
&DLSCH_alloc_pdu_1,
opts.n_rnti,
format1,
PHY_vars_eNB->dlsch_eNB[0],
&PHY_vars_eNB->lte_frame_parms, PHY_vars_eNB->pdsch_config_dedicated,
SI_RNTI,
0,
P_RNTI,
PHY_vars_eNB->eNB_UE_stats[0].DL_pmi_single);
//*******************************************************
//printf("PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->TBS: %d \n",PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->TBS);
num_pdcch_symbols_2 = _generate_dci_top(num_ue_spec_dci,num_common_dci,dci_alloc,opts,num_pdcch_symbols);
_writeTxData("1","dci", 0, 2,opts,0,0);
/*****Sending******/ //TVT:force it to use QPSK in the 2nd round
if (round==0)
i_mod=get_Qm(opts.mcs); //Compute Q (modulation order) based on I_MCS.
else
i_mod=get_Qm(opts.mcs2);
coded_bits_per_codeword = get_G(&PHY_vars_eNB->lte_frame_parms,
PHY_vars_eNB->dlsch_eNB[idUser][0]->nb_rb,
PHY_vars_eNB->dlsch_eNB[idUser][0]->rb_alloc,
i_mod,
num_pdcch_symbols,0,
opts.subframe);
tbs = (double)dlsch_tbs25[get_I_TBS(PHY_vars_eNB->dlsch_eNB[idUser][0]->harq_processes[0]->mcs)][PHY_vars_eNB->dlsch_eNB[idUser][0]->nb_rb-1];
//printf("\nround: %d dlsch_enB=->nb_rb: %d mcs: %d\n",round,PHY_vars_eNB->dlsch_eNB[idUser][0]->nb_rb,opts.mcs);
//printf("PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->MCS %d\n",PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->mcs);
//printf("tbs= %d, G=%d \n",tbs,coded_bits_per_codeword);
rate = (double)tbs/(double)coded_bits_per_codeword;
uncoded_ber_bit = (short*) malloc(2*coded_bits_per_codeword);
if (cont_frames==0 && round==0){
printf("\tRate = %f (%f bits/dim) (G %d, TBS %d, mod %d, pdcch_sym %d)\n",
rate,rate*i_mod,coded_bits_per_codeword,tbs,i_mod,num_pdcch_symbols);
rate1=rate*i_mod;}
//TVT: no tpmi in DCI format 1 --------------
// use the PMI from previous trial
//if (DLSCH_alloc_pdu2_1.tpmi == 5)
//{
//PHY_vars_eNB->dlsch_eNB[0][0]->pmi_alloc = quantize_subband_pmi(&PHY_vars_UE->PHY_measurements,0);
//PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->pmi_alloc = quantize_subband_pmi(&PHY_vars_UE->PHY_measurements,0);
//}
//----------------------
//encoding dlsch for principal eNB and interferer
status= dlsch_encoding(input_buffer,
&PHY_vars_eNB->lte_frame_parms,num_pdcch_symbols,
PHY_vars_eNB->dlsch_eNB[idUser][0],0,opts.subframe,
&PHY_vars_eNB->dlsch_rate_matching_stats,
&PHY_vars_eNB->dlsch_turbo_encoding_stats,
&PHY_vars_eNB->dlsch_interleaving_stats);
if (status<0) exit(-1);
for(i=0;i<opts.nInterf;i++)
{
status= dlsch_encoding(interferer_input_buffer[i],
&(interf_PHY_vars_eNB[i]->lte_frame_parms),num_pdcch_symbols,
interf_PHY_vars_eNB[i]->dlsch_eNB[0][0],0,opts.subframe,
&interf_PHY_vars_eNB[i]->dlsch_rate_matching_stats,
&interf_PHY_vars_eNB[i]->dlsch_turbo_encoding_stats,
&interf_PHY_vars_eNB[i]->dlsch_interleaving_stats
);
if (status<0) exit(-1);
}
PHY_vars_eNB->dlsch_eNB[idUser][0]->rnti = opts.n_rnti+idUser;
//scrambling
dlsch_scrambling(&PHY_vars_eNB->lte_frame_parms,
0,
PHY_vars_eNB->dlsch_eNB[idUser][0],
coded_bits_per_codeword, 0, opts.subframe<<1);
for(i=0;i<opts.nInterf;i++)
{
dlsch_scrambling(&(interf_PHY_vars_eNB[i]->lte_frame_parms),
0,
interf_PHY_vars_eNB[i]->dlsch_eNB[0][0],
coded_bits_per_codeword, 0, opts.subframe<<1);
}
if (opts.nframes==1)
{
_dumpTransportBlockSegments(PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->C,
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->Cminus,
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->Kminus,
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->Kplus,
null,
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->c);
}
//Modulation
re_allocated = dlsch_modulation(PHY_vars_eNB->lte_eNB_common_vars.txdataF[opts.Nid_cell],
AMP,
opts.subframe,
&PHY_vars_eNB->lte_frame_parms,
num_pdcch_symbols,
PHY_vars_eNB->dlsch_eNB[idUser][0]);
for(i=0;i<opts.nInterf;i++)
{
dlsch_modulation(interf_PHY_vars_eNB[i]->lte_eNB_common_vars.txdataF[0],
AMP,
opts.subframe,
&(interf_PHY_vars_eNB[i])->lte_frame_parms,
num_pdcch_symbols,
interf_PHY_vars_eNB[i]->dlsch_eNB[0][0]);
}
_writeTxData("2","mod", 0, 2,opts,0,0);
/*if (cont_frames==0 && round==0)
printf("re_allocated: %d\n",re_allocated);*/
//Generate pilots
generate_pilots(PHY_vars_eNB,PHY_vars_eNB->lte_eNB_common_vars.txdataF[opts.Nid_cell],
AMP,
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME);
for(i=0;i<opts.nInterf;i++)
{
generate_pilots(interf_PHY_vars_eNB[i],interf_PHY_vars_eNB[i]->lte_eNB_common_vars.txdataF[0],
AMP,
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME);
}
_writeTxData("3","pilots", 0, 2,opts,0,0);
//OFDM Modulation
for(i=0;i<3;i++)
{
do_OFDM_mod(PHY_vars_eNB->lte_eNB_common_vars.txdataF[opts.Nid_cell],
PHY_vars_eNB->lte_eNB_common_vars.txdata[opts.Nid_cell],
(opts.subframe*2)+i,
&PHY_vars_eNB->lte_frame_parms);
for(j=0;j<opts.nInterf;j++)
{
do_OFDM_mod(interf_PHY_vars_eNB[j]->lte_eNB_common_vars.txdataF[0],
interf_PHY_vars_eNB[j]->lte_eNB_common_vars.txdata[0],
(opts.subframe*2)+i,
&interf_PHY_vars_eNB[j]->lte_frame_parms);
}
}
_writeTxData("6","ofdm3", 0, 3,opts,0,1);
for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_tx; aa++) {
tx_lev += signal_energy(&PHY_vars_eNB->lte_eNB_common_vars.txdata[opts.Nid_cell][aa]
[opts.subframe*PHY_vars_eNB->lte_frame_parms.samples_per_tti],
PHY_vars_eNB->lte_frame_parms.samples_per_tti);
for(i=0;i<opts.nInterf;i++)
{
itx_lev[i] += signal_energy(&interf_PHY_vars_eNB[i]->lte_eNB_common_vars.txdata[0][aa]
[opts.subframe*interf_PHY_vars_eNB[i]->lte_frame_parms.samples_per_tti],
interf_PHY_vars_eNB[i]->lte_frame_parms.samples_per_tti);
}
}
tx_lev_dB = (unsigned int) dB_fixed(tx_lev);
for(i=0;i<opts.nInterf;i++)
{
itxlev_dB[i] = (unsigned int) dB_fixed(itx_lev[i]);
}
if (opts.nframes==1) {
printf("tx_lev = %d (%d dB)\n",tx_lev,tx_lev_dB);
for(i=0;i<opts.nInterf;i++)
{
printf("itx_lev[%d] = %d (%d dB)\n",i,itx_lev[i],itxlev_dB[i]);
}
write_output("txsigF0.m","txsF0", &PHY_vars_eNB->lte_eNB_common_vars.txdataF[opts.Nid_cell][0][0],opts.SIZE_TXDATAF ,1,1);
if(opts.nInterf>0)
{
write_output("txsigF1.m","txsF1", &interf_PHY_vars_eNB[0]->lte_eNB_common_vars.txdataF[opts.Nid_cell][0][0],opts.SIZE_TXDATAF ,1,1);
write_output("txsig1.m","txs1", &interf_PHY_vars_eNB[0]->lte_eNB_common_vars.txdata[opts.Nid_cell][0][0],opts.SIZE_TXDATA/20,1,1);
}
if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1)
write_output("txsigF1.m","txsF1", &PHY_vars_eNB->lte_eNB_common_vars.txdataF[opts.Nid_cell][1][0],opts.SIZE_TXDATAF,1,1);
write_output("txsig0.m","txs0", &PHY_vars_eNB->lte_eNB_common_vars.txdata[opts.Nid_cell][0][0],opts.SIZE_TXDATA/20,1,1);
}
_fillData(opts,data,2);
NB_RB2[round]=conv_nprb(0,((DCI1_5MHz_TDD_t *)&DLSCH_alloc_pdu_1)->rballoc,opts.N_RB_DL);
numOFDMSymbSubcarrier=(double)PHY_vars_UE->lte_frame_parms.ofdm_symbol_size/(NB_RB2[round]*12.0);
sigma2_dB = 10*log10((double)tx_lev) +10*log10(numOFDMSymbSubcarrier) - SNR- get_pa_dB(PHY_vars_eNB->pdsch_config_dedicated);
sigma2 = pow(10,sigma2_dB/10);
//printf("\nround: %d sigma2_dB: %f\n",round,sigma2_dB);
//Noise and Interference
_apply_Multipath_Noise_Interference(opts,data,sigma2_dB,sigma2,2);
_writeTxData("7","noise_ch_int", 0, 3,opts,1,1);
/*****End Sending***/
if (opts.nframes==1) {
printf("Sigma2 %f (sigma2_dB %f)\n",sigma2,sigma2_dB);
printf("RX level in null symbol %d\n",dB_fixed(signal_energy(&PHY_vars_UE->lte_ue_common_vars.rxdata[0][160+OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES],OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2)));
printf("RX level in data symbol %d\n",dB_fixed(signal_energy(&PHY_vars_UE->lte_ue_common_vars.rxdata[0][160+(2*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES)],OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2)));
printf("rx_level Null symbol %f\n",10*log10(signal_energy_fp(data.r_re,data.r_im,1,OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2,256+(OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES))));
printf("rx_level data symbol %f\n",10*log10(signal_energy_fp(data.r_re,data.r_im,1,OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2,256+(2*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES))));
}
if (round==0)
i_mod = get_Qm(opts.mcs);
else
i_mod = get_Qm(opts.mcs2);
/*********Reciver **************/
//TODO: Optimize and clean code
// Inner receiver scheduling for 3 slots
for (Ns=(2*opts.subframe); Ns<((2*opts.subframe)+3); Ns++)
{
for (l=0; l<opts.pilot2 ; l++)
{
slot_fep(PHY_vars_UE,l,Ns%20,0,0);
//TODO: Set NCell_id_i = syronger interferer
#ifdef PERFECT_CE
_fillPerfectChannelDescription(opts,l);
#endif
if ((Ns==((2*opts.subframe))) && (l==0)) {
lte_ue_measurements(PHY_vars_UE,opts.subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti,1,0);
}
if ((Ns==(2*opts.subframe)) && (l==opts.pilot1))
{// process symbols 0,1,2
if (opts.dci_flag == 1)
{
rx_pdcch(&PHY_vars_UE->lte_ue_common_vars,
PHY_vars_UE->lte_ue_pdcch_vars,
&PHY_vars_UE->lte_frame_parms,
opts.subframe,
0,
(PHY_vars_UE->lte_frame_parms.mode1_flag == 1) ? SISO : ALAMOUTI,
0);
PHY_vars_UE->lte_ue_pdcch_vars[0]->num_pdcch_symbols = num_pdcch_symbols;
dci_cnt = dci_decoding_procedure(PHY_vars_UE,dci_alloc_rx,1,0,opts.subframe);
//
if (dci_cnt==0)
{
dlsch_active = 0;
if (round==0) {
dci_errors++;
round=5;
errs[0]++;
round_trials[0]++;
}
}
for (i=0; i<dci_cnt; i++)
{
status =generate_ue_dlsch_params_from_dci(0,dci_alloc_rx[i].dci_pdu,
dci_alloc_rx[i].rnti,dci_alloc_rx[i].format,
PHY_vars_UE->dlsch_ue[0],&PHY_vars_UE->lte_frame_parms,PHY_vars_UE->pdsch_config_dedicated,
SI_RNTI,0,P_RNTI);
if ((dci_alloc_rx[i].rnti == opts.n_rnti) && (status==0)) {
coded_bits_per_codeword = get_G(&PHY_vars_eNB->lte_frame_parms,
PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->nb_rb,
PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->rb_alloc,
get_Qm(PHY_vars_UE->dlsch_ue[0][0]->harq_processes[PHY_vars_UE->dlsch_ue[0][0]->current_harq_pid]->mcs),
PHY_vars_UE->lte_ue_pdcch_vars[0]->num_pdcch_symbols,
0,opts.subframe);
dlsch_active = 1;
}
else {
dlsch_active = 0;
if (round==0) {
dci_errors++;
errs[0]++;
round_trials[0]++;
if (opts.nframes==1) {
printf("DCI misdetection trial %d\n",cont_frames);
round=5;
}
}
}
}
} // if dci_flag==1
else { //dci_flag == 0
PHY_vars_UE->lte_ue_pdcch_vars[0]->crnti = opts.n_rnti;
PHY_vars_UE->lte_ue_pdcch_vars[0]->num_pdcch_symbols = num_pdcch_symbols;
generate_ue_dlsch_params_from_dci(0,&DLSCH_alloc_pdu_1,
C_RNTI,
format1,//TVT: E_2A_M10PRB,
PHY_vars_UE->dlsch_ue[0],
&PHY_vars_UE->lte_frame_parms,PHY_vars_UE->pdsch_config_dedicated,
SI_RNTI,
0,
P_RNTI);
dlsch_active = 1;
} // if dci_flag == 1
}
if (dlsch_active == 1)
{
if ((Ns==(1+(2*opts.subframe))) && (l==0))
{// process PDSCH symbols 1,2,3,4,5,(6 Normal Prefix)
for (m=PHY_vars_UE->lte_ue_pdcch_vars[0]->num_pdcch_symbols; m<opts.pilot2; m++)
{
#if defined ENABLE_FXP || ENABLE_FLP
//printf("fxp or flp release used\n");
if (rx_pdsch(PHY_vars_UE,
PDSCH,
opts.Nid_cell,
eNB_id_i,
opts.subframe,
m,
(m==PHY_vars_UE->lte_ue_pdcch_vars[0]->num_pdcch_symbols)?1:0,
opts.dual_stream_UE,
i_mod,
0))
{
dlsch_active = 0;
break;
}
#endif
#ifdef ENABLE_FULL_FLP
// printf("Full flp release used\n");
if (rx_pdsch_full_flp(PHY_vars_UE,
PDSCH,
opts.Nid_cell,
eNB_id_i,
opts.subframe,
m,
(m==PHY_vars_UE->lte_ue_pdcch_vars[0]->num_pdcch_symbols)?1:0,
opts.dual_stream_UE,
i_mod))
{
dlsch_active = 0;
break;
}
#endif
}
}
if ((Ns==(1+(2*opts.subframe))) && (l==opts.pilot1))
{// process symbols (6 Extended Prefix),7,8,9
for (m=opts.pilot2; m<opts.pilot3; m++)
{
#if defined ENABLE_FXP || ENABLE_FLP
// printf("fxp or flp release used\n");
if (rx_pdsch(PHY_vars_UE,
PDSCH,
opts.Nid_cell,
eNB_id_i,
opts.subframe,
m,
0,
opts.dual_stream_UE,
i_mod,0)==-1)
{
dlsch_active=0;
break;
}
#endif
#ifdef ENABLE_FULL_FLP
// printf("Full flp release used\n");
if (rx_pdsch_full_flp(PHY_vars_UE,
PDSCH,
opts.Nid_cell,
eNB_id_i,
opts.subframe,
m,
0,
opts.dual_stream_UE,
i_mod)==-1)
{
dlsch_active=0;
break;
}
#endif
}
}
if ((Ns==(2+(2*opts.subframe))) && (l==0)) // process symbols 10,11,(12,13 Normal Prefix) do deinterleaving for TTI
{
for (m=opts.pilot3; m<PHY_vars_UE->lte_frame_parms.symbols_per_tti; m++)
{
#if defined ENABLE_FXP || ENABLE_FLP
// printf("fxp or flp release used\n");
if (rx_pdsch(PHY_vars_UE,
PDSCH,
opts.Nid_cell,
eNB_id_i,
opts.subframe,
m,
0,
opts.dual_stream_UE,
i_mod,0)==-1)
{
dlsch_active=0;
break;
}
#endif
#ifdef ENABLE_FULL_FLP
// printf("Full flp release used\n");
if (rx_pdsch_full_flp(PHY_vars_UE,
PDSCH,
opts.Nid_cell,
eNB_id_i,
opts.subframe,
m,
0,
opts.dual_stream_UE,
i_mod)==-1)
{
dlsch_active=0;
break;
}
#endif
}
}
}
}
}
if(opts.nframes==1)
{
printf("Dumping DLSCH output\n");
_writeOuputOneFrame(opts,coded_bits_per_codeword,uncoded_ber_bit,tbs);
write_output("fch0e.m","ch0e",&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][0][0]),PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*opts.nsymb/2,1,1);
write_output("fch1e.m","ch1e",&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[1][0][0]),PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*opts.nsymb/2,1,1);
}
/*if(round==0)
{
raw_ber += compute_ber_soft(PHY_vars_eNB->dlsch_eNB[0][0]->e,
PHY_vars_UE->lte_ue_pdsch_vars[0]->llr[0],
coded_bits_per_codeword);
}*/
//Compute BER
uncoded_ber=0;
for (i=0;i<coded_bits_per_codeword;i++)
{
if (PHY_vars_eNB->dlsch_eNB[0][0]->e[i] != (PHY_vars_UE->lte_ue_pdsch_vars[0]->llr[0][i]<0)) {
uncoded_ber_bit[i] = 1;
uncoded_ber++;
}
else
uncoded_ber_bit[i] = 0;
}
// printf("uncoded_ber %f coded_bits_per_codeword %d \n ",uncoded_ber,coded_bits_per_codeword);
uncoded_ber/=coded_bits_per_codeword;
avg_ber += uncoded_ber;
numresults++;
// printf("avg_ber: %f\n",avg_ber);
//End compute BER
PHY_vars_UE->dlsch_ue[0][0]->rnti = opts.n_rnti;
PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->G = coded_bits_per_codeword;
dlsch_unscrambling(&PHY_vars_UE->lte_frame_parms,
0,
PHY_vars_UE->dlsch_ue[0][0],
coded_bits_per_codeword,
PHY_vars_UE->lte_ue_pdsch_vars[opts.Nid_cell]->llr[0],
0,
opts.subframe<<1);
ret = dlsch_decoding(PHY_vars_UE,
PHY_vars_UE->lte_ue_pdsch_vars[opts.Nid_cell]->llr[0],
&PHY_vars_UE->lte_frame_parms,
PHY_vars_UE->dlsch_ue[0][0],
PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0],
opts.subframe,0,
1,0);
#ifdef XFORMS
do_forms(form,
&PHY_vars_UE->lte_frame_parms,
PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates_time[0],
PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0],
PHY_vars_UE->lte_ue_common_vars.rxdata,
PHY_vars_UE->lte_ue_common_vars.rxdataF,
PHY_vars_UE->lte_ue_pdsch_vars[0]->rxdataF_comp[0],
PHY_vars_UE->lte_ue_pdsch_vars[1]->rxdataF_comp[0],
PHY_vars_UE->lte_ue_pdsch_vars[0]->dl_ch_rho_ext[0],
PHY_vars_UE->lte_ue_pdsch_vars[0]->llr[0],coded_bits_per_codeword);
/* printf("Hit a key to continue\n");
char c = getchar();*/
#endif
_writeTxData("8","unsc_undec", 0, 2,opts,1,2);
if (ret <= MAX_TURBO_ITERATIONS) //No hay errores 4
{
//round=5;
if (opts.fix_rounds==0)
round=5;
else
round++;
if (opts.nframes==1) {
printf("No DLSCH errors found\n");
_dumpTransportBlockSegments(PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->C,
PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->Cminus,
PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->Kminus,
PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->Kplus,
PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->c,
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->c);
}
}
else
{
errs[round]++;
//Lid: round++;
if (opts.nframes==1)
{
printf("DLSCH in error in round %d (ret %d)\n",round,ret);
printf("DLSCH errors found, uncoded ber %f\n",uncoded_ber);
_dumpTransportBlockSegments(PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->C,
PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->Cminus,
PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->Kminus,
PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->Kplus,
PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->c,
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->c);
exit(1);
}
round++;
if (opts.nframes==1) printf("DLSCH error in round %d\n",round);
}
free(uncoded_ber_bit);
uncoded_ber_bit = NULL;
} //round
if ((errs[0]>=opts.nframes/10) && (cont_frames>(opts.nframes/2)))
break;
} //cont_frames
//printf("nprb1: %d, nprb2: %d, mcs: %d, mcs2: %d\n",opts.nprb1,opts.nprb2,opts.mcs, opts.mcs2);
printf("\n---------------------------------------------------------------------\n");
printf("SNR = %f dB (tx_lev %f, sigma2_dB %f) BER (%f/%d=%f) BLER(%d/%d=%f)\n\t T (%d/%d = %f ) \n",
SNR,(double)tx_lev_dB+10*log10(numOFDMSymbSubcarrier),
sigma2_dB,avg_ber,numresults,(avg_ber/numresults),
errs[0],round_trials[0],((float)errs[0]/round_trials[0]),
0,0,0.0);
fprintf(opts.outputTrougput,"%f %f;\n",SNR, rate*((double)(round_trials[0]-dci_errors)/((double)round_trials[0] + round_trials[1] + round_trials[2] + round_trials[3])));
_printResults(errs,round_trials,dci_errors,rate);
//_printFileResults( SNR, rate1, rate,errs,round_trials, dci_errors, opts,avg_ber/numresults);
//if (((double)errs[0]/(round_trials[0]))<1e-2) break;//IF errors > 1%
//TVT:if the outage is greater than some threshold stop, otherwise decrease the nprb2
if (((double)errs[1]/(round_trials[0]+round_trials[1]))>1e-2){ //IF Pout2 > 1%
_printFileResults( SNR, rate1, rate,errs,round_trials, dci_errors, opts,avg_ber/numresults);
break;
}
opts.nprb2--;
}//nprb2
if ((double)errs[0]/round_trials[0]<1e-2) //IF Pout1 > 1%
break;
}// SNR
//}//mcs
}
void do_OFDM_mod(mod_sym_t **txdataF, s32 **txdata, u16 next_slot, LTE_DL_FRAME_PARMS *frame_parms) {
int aa, slot_offset, slot_offset_F;
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++) {
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
frame_parms->twiddle_ifft, // IFFT twiddle factors
frame_parms->rev, // bit-reversal permutation
CYCLIC_PREFIX);
else {
normal_prefix_mod(&txdataF[aa][slot_offset_F],
&txdata[aa][slot_offset],
7,
frame_parms);
}
}
}
void _apply_Multipath_Noise_Interference(options_t opts,data_t data,double sigma2_dB,double sigma2,int numSubFrames)
{
double iqim=0.0;
int j;
//Multipath channel
//Generates and applys a random frequency selective random channel model.
multipath_channel(eNB2UE,data.s_re,data.s_im,data.r_re,data.r_im,numSubFrames*frame_parms->samples_per_tti,0);
for(j=0;j<opts.nInterf;j++)
{
multipath_channel(interf_eNB2UE[j],data.is_re[j],data.is_im[j],data.ir_re[j],data.ir_im[j],numSubFrames*frame_parms->samples_per_tti,0);
}
//Interference
_applyInterference(opts,data,sigma2,iqim,numSubFrames);
//Noise
_applyNoise(opts,data,sigma2,iqim,numSubFrames);
if (opts.nframes==1) {
printf("Sigma2 %f (sigma2_dB %f)\n",sigma2,sigma2_dB);
printf("RX level in null symbol %d\n",dB_fixed(signal_energy(&PHY_vars_UE->lte_ue_common_vars.rxdata[0][160+OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES],OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2)));
printf("RX level in data symbol %d\n",dB_fixed(signal_energy(&PHY_vars_UE->lte_ue_common_vars.rxdata[0][160+(2*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES)],OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2)));
printf("rx_level Null symbol %f\n",10*log10(signal_energy_fp(data.r_re,data.r_im,1,OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2,256+(OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES))));
printf("rx_level data symbol %f\n",10*log10(signal_energy_fp(data.r_re,data.r_im,1,OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2,256+(2*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES))));
}
}
void _writeOuputOneFrame(options_t opts,u32 coded_bits_per_codeword,short *uncoded_ber_bit,u32 tbs)
{
printf("log2_maxh => %d\n",PHY_vars_UE->lte_ue_pdsch_vars[0]->log2_maxh);
write_output("rho.m","rho_0",PHY_vars_UE->lte_ue_pdsch_vars[0]->dl_ch_rho_ext[0],300*((PHY_vars_UE->lte_frame_parms.Ncp == 0) ? 14 : 12),1,1);
if (PHY_vars_UE->lte_frame_parms.nb_antennas_rx>1) {
write_output("dlsch01_ch0.m","dl01_ch0",&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[opts.Nid_cell][1][0]),PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*opts.nsymb/2,1,1);
write_output("dlsch10_ch0.m","dl10_ch0",&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[opts.Nid_cell][2][0]),PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*opts.nsymb/2,1,1);
write_output("rxsigF1.m","rxsF1", &PHY_vars_UE->lte_ue_common_vars.rxdataF[1][0],opts.SIZE_RXDATAF,1,1);
write_output("rxsig1.m","rxs1", &PHY_vars_UE->lte_ue_common_vars.rxdata[1][0],opts.SIZE_RXDATA,1,1);
if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1)
write_output("dlsch11_ch0.m","dl11_ch0",&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[opts.Nid_cell][3][0]),PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*opts.nsymb/2,1,1);
}
write_output("dlsch00_ch0.m","dl00_ch0",&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[opts.Nid_cell][0][0]),PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*opts.nsymb/2,1,1);
write_output("dlsch00_ch1.m","dl00_ch1",&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[1][0][0]),PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*opts.nsymb/2,1,1);
write_output("dlsch_e.m","e",PHY_vars_eNB->dlsch_eNB[0][0]->e,coded_bits_per_codeword,1,4);
write_output("dlsch_ber_bit.m","ber_bit",uncoded_ber_bit,coded_bits_per_codeword,1,0);
write_output("dlsch_eNB_w.m","w",PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->w[0],3*(tbs+64),1,4);
write_output("dlsch_UE_w.m","w",PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->w[0],3*(tbs+64),1,0);
write_output("rxsigF0.m","rxsF0", &PHY_vars_UE->lte_ue_common_vars.rxdataF[0][0],opts.SIZE_RXDATAF,1,1);
write_output("rxsig0.m","rxs0", &PHY_vars_UE->lte_ue_common_vars.rxdata[0][0],opts.SIZE_RXDATA,1,1);
write_output("ch0.m","ch0",eNB2UE->ch[0],eNB2UE->channel_length,1,8);
if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1)
{
write_output("ch1.m","ch1",eNB2UE->ch[PHY_vars_eNB->lte_frame_parms.nb_antennas_rx],eNB2UE->channel_length,1,8);
}
write_output("pdcchF0_ext.m","pdcchF_ext", PHY_vars_UE->lte_ue_pdcch_vars[opts.Nid_cell]->rxdataF_ext[0],2*3*PHY_vars_UE->lte_frame_parms.ofdm_symbol_size,1,1);
write_output("pdcch00_ch0_ext.m","pdcch00_ch0_ext",PHY_vars_UE->lte_ue_pdcch_vars[opts.Nid_cell]->dl_ch_estimates_ext[0],300*3,1,1);
write_output("pdcch_rxF_comp0.m","pdcch0_rxF_comp0",PHY_vars_UE->lte_ue_pdcch_vars[opts.Nid_cell]->rxdataF_comp[0],opts.nsymb*300,1,1);
write_output("pdcch_rxF_llr.m","pdcch_llr",PHY_vars_UE->lte_ue_pdcch_vars[opts.Nid_cell]->llr,2400,1,4);
dump_dlsch2(PHY_vars_UE,opts.Nid_cell,coded_bits_per_codeword);
dump_dlsch2(PHY_vars_UE,1,coded_bits_per_codeword);
char fname[32],vname[32];
int i;
for(i=0;i<2;i++)
{
sprintf(fname,"dlsch%d_rxF_ext0_%d.m",i,opts.testNumber);
sprintf(vname,"dl%d_rxF_ext0_%d",i,opts.testNumber);
write_output(fname,vname,PHY_vars_UE->lte_ue_pdsch_vars[i]->rxdataF_ext[0],300*opts.nsymb,1,1);
sprintf(fname,"dlsch%d_rxF_comp0_%d.m",i,opts.testNumber);
sprintf(vname,"dl%d_rxF_comp0_%d",i,opts.testNumber);
write_output(fname,vname,PHY_vars_UE->lte_ue_pdsch_vars[i]->rxdataF_comp[0],300*opts.nsymb,1,1);
}
sprintf(fname,"dlsch%d_rxF_llr_%d.m",i,opts.testNumber);
sprintf(vname,"dl%d_llr_%d",i,opts.testNumber);
write_output(fname,vname, PHY_vars_UE->lte_ue_pdsch_vars[0]->llr[0],coded_bits_per_codeword,1,0);
}
void _dumpTransportBlockSegments(u32 C,u32 Cminus,u32 Kminus,u32 Kplus, u8 ** c_UE, u8 ** c_eNB)
{
int i,s;
int Kr,Kr_bytes;
for (s=0; s<C; s++)
{
if (s<Cminus)
Kr = Kminus;
else
Kr = Kplus;
Kr_bytes = Kr>>3;
// printf("Decoded_output (Segment %d):\n",s);
for (i=0; i<Kr_bytes; i++)
{
if ( c_UE !=NULL)
printf("%d : %x (%x)\n",i,c_UE[s][i],c_UE[s][i]^c_eNB[s][i]);
else
printf("%d : (%x)\n",i,c_eNB[s][i]);
}
}
}
void _writeTxData(char *num,char *desc, int init, int numframes,options_t opts, int output,int senial)
{
char fileName[80], vectorName[80];
int i;
if(WRITE_FILES && opts.nframes==1)
{
if(!output)
{
if(senial==0 || senial==2)
{
sprintf(fileName,"log%s_txsigF_%s.m",num,desc);
sprintf(vectorName,"txF%s",num);
write_output(fileName,vectorName, &PHY_vars_eNB->lte_eNB_common_vars.txdataF[opts.Nid_cell][0][0],(opts.SIZE_TXDATAF/10)*numframes ,1,1);
}
if(senial==1 || senial==2)
{
sprintf(fileName,"log%s_txsig_%s.m",num,desc);
sprintf(vectorName,"tx%s",num);
write_output(fileName,vectorName, &PHY_vars_eNB->lte_eNB_common_vars.txdata[opts.Nid_cell][0][0],opts.SIZE_TXDATA,1,1);
}
for(i=0;i<opts.nInterf;i++)
{
if(senial==0 || senial==2)
{
sprintf(fileName,"i%dlog%s_txsigF_%s.m",i,num,desc);
sprintf(vectorName,"i%dtxF%s",i,num);
write_output(fileName,vectorName, &(interf_PHY_vars_eNB[i]->lte_eNB_common_vars.txdataF[opts.Nid_cell][0][0]),(opts.SIZE_TXDATAF/10)*numframes ,1,1);
}
if(senial==1 || senial==2)
{
sprintf(fileName,"i%dog%s_txsig_%s.m",i,num,desc);
sprintf(vectorName,"i%tx%s",i,num);
write_output(fileName,vectorName, &interf_PHY_vars_eNB[i]->lte_eNB_common_vars.txdata[opts.Nid_cell][0][0],opts.SIZE_TXDATA,1,1);
}
}
}
else
{
sprintf(fileName,"log%s_rxsigF_%s.m",num,desc);
sprintf(vectorName,"rxF%s",num);
write_output(fileName,vectorName,&PHY_vars_UE->lte_ue_common_vars.rxdataF[0][0],opts.SIZE_RXDATAF,1,1);
sprintf(fileName,"log%s_rxsig_%s.m",num,desc);
sprintf(vectorName,"rx%s",num);
write_output(fileName,vectorName, &PHY_vars_UE->lte_ue_common_vars.rxdata[0][0],opts.SIZE_RXDATA,1,1);
}
}
}
double compute_ber_soft(u8* ref, s16* rec, int n)
{
int k;
int e = 0;
for(k = 0; k < n; k++) {
if((ref[k]==1) != (rec[k]<0)) {
#ifdef SIG_DEBUG
printf("error pos %d ( %d => %d)\n",k,ref[k],rec[k]);
#endif
e++;
}
}
//printf("ber:%d ,%d , %f\t\n",x++,e ,(double)n);
return (double)e / (double)n;
}
void _fillPerfectChannelDescription(options_t opts,u8 l)
{
//printf("Algo con la inter : %f",pow(10.0,.05*opts.dbInterf[0]));
int aa, aarx,i,j;
//init_freq_channel(eNB2UE,PHY_vars_UE->lte_frame_parms.N_RB_DL,12*PHY_vars_UE->lte_frame_parms.N_RB_DL + 1);
freq_channel(eNB2UE,PHY_vars_UE->lte_frame_parms.N_RB_DL,12*PHY_vars_UE->lte_frame_parms.N_RB_DL + 1);
for(j=0;j<opts.nInterf;j++)
{
//init_freq_channel(interf_eNB2UE[j],PHY_vars_UE->lte_frame_parms.N_RB_DL,12*PHY_vars_UE->lte_frame_parms.N_RB_DL + 1);
freq_channel(interf_eNB2UE[j],PHY_vars_UE->lte_frame_parms.N_RB_DL,12*PHY_vars_UE->lte_frame_parms.N_RB_DL + 1);
} printf("PHY_vars_UE->dlsch_ue[0][0]->sqrt_rho_b %d",PHY_vars_UE->dlsch_ue[0][0]->sqrt_rho_b);
for (aa=0; aa<frame_parms->nb_antennas_tx; aa++)
{
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++)
{
for (i=0; i<frame_parms->N_RB_DL*12; i++)
{
if (opts.awgn_flag==0)
{
/*((s16 *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[opts.Nid_cell][(aa<<1)+aarx])[2*i+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(s16)(eNB2UE->chF[aarx+(aa*frame_parms->nb_antennas_rx)][i].x*AMP/2);
((s16 *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[opts.Nid_cell][(aa<<1)+aarx])[2*i+1+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(s16)(eNB2UE->chF[aarx+(aa*frame_parms->nb_antennas_rx)][i].y*AMP/2) ;
*/
((s16 *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[opts.Nid_cell][(aa<<1)+aarx])[2*i+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(s16)(eNB2UE->chF[aarx+(aa*frame_parms->nb_antennas_rx)][i].x*AMP/2);
((s16 *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[opts.Nid_cell][(aa<<1)+aarx])[2*i+1+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(s16)(eNB2UE->chF[aarx+(aa*frame_parms->nb_antennas_rx)][i].y*AMP/2) ;
if(opts.nInterf>0) //Max num interferer
{
if(opts.awgn_flagi==0){
if(j==opts.Nid_cell) continue;
((s16 *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[1][(aa<<1)+aarx])[2*i+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(s16)(interf_eNB2UE[0]->chF[aarx+(aa*frame_parms->nb_antennas_rx)][i].x*AMP/2)*pow(10.0,.05*opts.dbInterf[0]);
((s16 *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[1][(aa<<1)+aarx])[2*i+1+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(s16)(interf_eNB2UE[0]->chF[aarx+(aa*frame_parms->nb_antennas_rx)][i].y*AMP/2)*pow(10.0,.05*opts.dbInterf[0]) ;
}
else{
if(j==opts.Nid_cell) continue;
((s16 *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[1][(aa<<1)+aarx])[2*i+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(short)((AMP/2)*(pow(10.0,.05*opts.dbInterf[0])));
((s16 *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[1][(aa<<1)+aarx])[2*i+1+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=0;
}
}
}
else{
((s16 *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[opts.Nid_cell][(aa<<1)+aarx])[2*i+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=AMP/2;
((s16 *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][(aa<<1)+aarx])[2*i+1+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=0;
if(opts.nInterf>0)//Max num interferer
{
/*if(j==opts.Nid_cell) continue;
((s16 *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[1][(aa<<1)+aarx])[2*i+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(short)((AMP/2)*(pow(10.0,.05*opts.dbInterf[0])));
((s16 *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[1][(aa<<1)+aarx])[2*i+1+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=0;
*/
if(opts.awgn_flagi==0){
if(j==opts.Nid_cell) continue;
((s16 *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[1][(aa<<1)+aarx])[2*i+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(s16)(interf_eNB2UE[0]->chF[aarx+(aa*frame_parms->nb_antennas_rx)][i].x*AMP/2)*pow(10.0,.05*opts.dbInterf[0]);
((s16 *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[1][(aa<<1)+aarx])[2*i+1+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(s16)(interf_eNB2UE[0]->chF[aarx+(aa*frame_parms->nb_antennas_rx)][i].y*AMP/2)*pow(10.0,.05*opts.dbInterf[0]) ;
}
else{
if(j==opts.Nid_cell) continue;
((s16 *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[1][(aa<<1)+aarx])[2*i+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(short)((AMP/2)*(pow(10.0,.05*opts.dbInterf[0])));
((s16 *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[1][(aa<<1)+aarx])[2*i+1+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=0;
}
}
}
}
}
}
}
#ifdef XFORMS
void do_forms(FD_lte_scope *form, LTE_DL_FRAME_PARMS *frame_parms, short **channel, short **channel_f, short **rx_sig, short **rx_sig_f, short *dlsch_comp, short* dlsch_comp_i, short* dlsch_rho, short *dlsch_llr, int coded_bits_per_codeword)
{
int i,j,ind,k,s;
float Re,Im;
float mag_sig[NB_ANTENNAS_RX*4*NUMBER_OF_OFDM_CARRIERS*NUMBER_OF_OFDM_SYMBOLS_PER_SLOT],
sig_time[NB_ANTENNAS_RX*4*NUMBER_OF_OFDM_CARRIERS*NUMBER_OF_OFDM_SYMBOLS_PER_SLOT],
sig2[FRAME_LENGTH_COMPLEX_SAMPLES],
time2[FRAME_LENGTH_COMPLEX_SAMPLES],
I[25*12*11*4], Q[25*12*11*4],
*llr,*llr_time;
float avg, cum_avg;
llr = malloc(coded_bits_per_codeword*sizeof(float));
llr_time = malloc(coded_bits_per_codeword*sizeof(float));
// Channel frequency response
cum_avg = 0;
ind = 0;
for (j=0; j<4; j++) {
for (i=0;i<frame_parms->nb_antennas_rx;i++) {
for (k=0;k<NUMBER_OF_OFDM_CARRIERS*7;k++){
sig_time[ind] = (float)ind;
Re = (float)(channel_f[(j<<1)+i][2*k]);
Im = (float)(channel_f[(j<<1)+i][2*k+1]);
//mag_sig[ind] = (short) rand();
mag_sig[ind] = (short)10*log10(1.0+((double)Re*Re + (double)Im*Im));
cum_avg += (short)sqrt((double)Re*Re + (double)Im*Im) ;
ind++;
}
// ind+=NUMBER_OF_OFDM_CARRIERS/4; // spacing for visualization
}
}
avg = cum_avg/NUMBER_OF_USEFUL_CARRIERS;
//fl_set_xyplot_ybounds(form->channel_f,30,70);
fl_set_xyplot_data(form->channel_f,sig_time,mag_sig,ind,"","","");
/*
// channel time resonse
cum_avg = 0;
ind = 0;
for (k=0;k<1;k++){
for (j=0;j<1;j++) {
for (i=0;i<frame_parms->ofdm_symbol_size;i++){
sig_time[ind] = (float)ind;
Re = (float)(channel[k+2*j][2*i]);
Im = (float)(channel[k+2*j][2*i+1]);
//mag_sig[ind] = (short) rand();
mag_sig[ind] = (short)10*log10(1.0+((double)Re*Re + (double)Im*Im));
cum_avg += (short)sqrt((double)Re*Re + (double)Im*Im) ;
ind++;
}
}
}
//fl_set_xyplot_ybounds(form->channel_t_im,10,90);
fl_set_xyplot_data(form->channel_t_im,sig_time,mag_sig,ind,"","","");
*/
// channel_t_re = rx_sig_f[0]
//for (i=0; i<FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX; i++) {
for (i=0; i<NUMBER_OF_OFDM_CARRIERS*frame_parms->symbols_per_tti/2; i++) {
sig2[i] = 10*log10(1.0+(double) ((rx_sig_f[0][4*i])*(rx_sig_f[0][4*i])+(rx_sig_f[0][4*i+1])*(rx_sig_f[0][4*i+1])));
time2[i] = (float) i;
}
//fl_set_xyplot_ybounds(form->channel_t_re,10,90);
fl_set_xyplot_data(form->channel_t_re,time2,sig2,NUMBER_OF_OFDM_CARRIERS*frame_parms->symbols_per_tti,"","","");
//fl_set_xyplot_data(form->channel_t_re,time2,sig2,FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX,"","","");
// channel_t_im = rx_sig[0]
//if (frame_parms->nb_antennas_rx>1) {
for (i=0; i<FRAME_LENGTH_COMPLEX_SAMPLES; i++) {
//for (i=0; i<NUMBER_OF_OFDM_CARRIERS*frame_parms->symbols_per_tti/2; i++) {
sig2[i] = 10*log10(1.0+(double) ((rx_sig[0][2*i])*(rx_sig[0][2*i])+(rx_sig[0][2*i+1])*(rx_sig[0][2*i+1])));
time2[i] = (float) i;
}
//fl_set_xyplot_ybounds(form->channel_t_im,0,100);
//fl_set_xyplot_data(form->channel_t_im,&time2[640*12*6],&sig2[640*12*6],640*12,"","","");
fl_set_xyplot_data(form->channel_t_im,time2,sig2,FRAME_LENGTH_COMPLEX_SAMPLES,"","","");
//}
/*
// PBCH LLR
j=0;
for(i=0;i<1920;i++) {
llr[j] = (float) pbch_llr[i];
llr_time[j] = (float) j;
//if (i==63)
// i=127;
//else if (i==191)
// i=319;
j++;
}
fl_set_xyplot_data(form->decoder_input,llr_time,llr,1920,"","","");
//fl_set_xyplot_ybounds(form->decoder_input,-100,100);
// PBCH I/Q
j=0;
for(i=0;i<12*12;i++) {
I[j] = pbch_comp[2*i];
Q[j] = pbch_comp[2*i+1];
j++;
//if (i==47)
// i=96;
//else if (i==191)
// i=239;
}
fl_set_xyplot_data(form->scatter_plot,I,Q,12*12,"","","");
//fl_set_xyplot_xbounds(form->scatter_plot,-100,100);
//fl_set_xyplot_ybounds(form->scatter_plot,-100,100);
// PDCCH I/Q
j=0;
for(i=0;i<12*25*3;i++) {
I[j] = pdcch_comp[2*i];
Q[j] = pdcch_comp[2*i+1];
j++;
//if (i==47)
// i=96;
//else if (i==191)
// i=239;
}
fl_set_xyplot_data(form->scatter_plot1,I,Q,12*25*3,"","","");
//fl_set_xyplot_xbounds(form->scatter_plot,-100,100);
//fl_set_xyplot_ybounds(form->scatter_plot,-100,100);
*/
// DLSCH LLR
for(i=0;i<coded_bits_per_codeword;i++) {
llr[i] = (float) dlsch_llr[i];
llr_time[i] = (float) i;
}
fl_set_xyplot_data(form->demod_out,llr_time,llr,coded_bits_per_codeword,"","","");
fl_set_xyplot_ybounds(form->demod_out,-256,256);
// DLSCH I/Q
j=0;
for (s=0;s<frame_parms->symbols_per_tti;s++) {
for(i=0;i<12*25;i++) {
I[j] = dlsch_comp[(2*25*12*s)+2*i];
Q[j] = dlsch_comp[(2*25*12*s)+2*i+1];
j++;
}
//if (s==2)
// s=3;
//else if (s==5)
// s=6;
//else if (s==8)
// s=9;
}
fl_set_xyplot_data(form->scatter_plot,I,Q,j,"","","");
fl_set_xyplot_xbounds(form->scatter_plot,-200,200);
fl_set_xyplot_ybounds(form->scatter_plot,-200,200);
// DLSCH I/Q
j=0;
for (s=0;s<frame_parms->symbols_per_tti;s++) {
for(i=0;i<12*25;i++) {
I[j] = dlsch_comp_i[(2*25*12*s)+2*i];
Q[j] = dlsch_comp_i[(2*25*12*s)+2*i+1];
j++;
}
//if (s==2)
// s=3;
//else if (s==5)
// s=6;
//else if (s==8)
// s=9;
}
fl_set_xyplot_data(form->scatter_plot1,I,Q,j,"","","");
fl_set_xyplot_xbounds(form->scatter_plot1,-1000,1000);
fl_set_xyplot_ybounds(form->scatter_plot1,-1000,1000);
// DLSCH I/Q
j=0;
for (s=0;s<frame_parms->symbols_per_tti;s++) {
for(i=0;i<12*25;i++) {
I[j] = dlsch_rho[(2*25*12*s)+2*i];
Q[j] = dlsch_rho[(2*25*12*s)+2*i+1];
j++;
}
//if (s==2)
// s=3;
//else if (s==5)
// s=6;
//else if (s==8)
// s=9;
}
fl_set_xyplot_data(form->scatter_plot2,I,Q,j,"","","");
fl_set_xyplot_xbounds(form->scatter_plot2,-1000,1000);
fl_set_xyplot_ybounds(form->scatter_plot2,-1000,1000);
free(llr);
free(llr_time);
}
#endif
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