/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see .
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@lists.eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#ifdef RTAI_ENABLED
#include
#include
#endif
#include "SIMULATION/TOOLS/defs.h"
#include "SIMULATION/RF/defs.h"
#include "PHY/types.h"
#include "PHY/defs.h"
#include "PHY/vars.h"
#include "MAC_INTERFACE/vars.h"
#ifdef IFFT_FPGA
#include "PHY/LTE_REFSIG/mod_table.h"
#endif
#ifdef EMOS
#include "SCHED/phy_procedures_emos.h"
#endif
#include "SCHED/defs.h"
#include "SCHED/vars.h"
#include "ARCH/CBMIMO1/DEVICE_DRIVER/vars.h"
#include "ARCH/CBMIMO1/DEVICE_DRIVER/cbmimo1_device.h"
#include "ARCH/COMMON/defs.h"
#include "LAYER2/MAC/vars.h"
#ifdef XFORMS
#include
#include "../../USERSPACE_TOOLS/SCOPE/lte_scope.h"
#endif //XFORMS
#include "OCG_vars.h"
#include "openair_hw.h"
#define BW 5.0
PHY_VARS_eNB *PHY_vars_eNB,*PHY_vars_eNB1,*PHY_vars_eNB2;
PHY_VARS_UE *PHY_vars_UE[2];
#define DLSCH_RB_ALLOC 0x1fff // igore DC component,RB13
#ifdef XFORMS
void do_forms2(FD_lte_scope *form,
LTE_DL_FRAME_PARMS *frame_parms,
int pdcch_symbols,
int16_t **channel,
int16_t **channel_f,
int16_t **rx_sig,
int16_t **rx_sig_f,
int16_t *pdcch_comp,
int16_t *dlsch_comp,
int16_t *dlsch_comp_i,
int16_t *dlsch_llr,
int16_t *pbch_comp,
int8_t *pbch_llr,
int coded_bits_per_codeword)
{
int i,j,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;
int ind;
float avg, cum_avg;
extern int* sync_corr_ue0;
// uint16_t nsymb = (frame_parms->Ncp == 0) ? 14 : 12;
llr = malloc(max(coded_bits_per_codeword,1920)*sizeof(float));
llr_time = malloc(max(coded_bits_per_codeword,1920)*sizeof(float));
// Channel frequency response
if (channel_f[0] != NULL) {
cum_avg = 0;
ind = 0;
for (j=0; j<2; j++) {
for (i=0; inb_antennas_rx; i++) {
for (k=0; k<(13*frame_parms->N_RB_DL); 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,"","","");
}
// sync_corr
for (i=0; ichannel_t_im,time2,sig2,FRAME_LENGTH_COMPLEX_SAMPLES,"","","");
fl_set_xyplot_ybounds(form->channel_t_im,0,1e6);
// rx sig 0
for (i=0; isymbols_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_re,30,60);
//fl_set_xyplot_data(form->channel_t_re,&time2[640*12*6],&sig2[640*12*6],640*12,"","","");
fl_set_xyplot_data(form->channel_t_re,time2,sig2,FRAME_LENGTH_COMPLEX_SAMPLES,"","","");
/*
// rx sig 1
for (i=0; isymbols_per_tti/2; i++) {
sig2[i] = 10*log10(1.0+(double) ((rx_sig[1][2*i])*(rx_sig[1][2*i])+(rx_sig[1][2*i+1])*(rx_sig[1][2*i+1])));
time2[i] = (float) i;
}
fl_set_xyplot_ybounds(form->channel_t_im,30,60);
//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
if (pbch_llr!=NULL) {
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
if (pbch_comp!=NULL) {
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*1; i++) {
I[j] = pdcch_comp[2*i];
Q[j] = pdcch_comp[2*i+1];
j++;
}
fl_set_xyplot_data(form->scatter_plot1,I,Q,12*25*1,"","","");
//fl_set_xyplot_xbounds(form->scatter_plot,-100,100);
//fl_set_xyplot_ybounds(form->scatter_plot,-100,100);
// DLSCH LLR
if (dlsch_llr != NULL) {
for(i=0; idemod_out,llr_time,llr,coded_bits_per_codeword,"","","");
// fl_set_xyplot_ybounds(form->demod_out,-1000,1000);
}
// DLSCH I/Q
if (dlsch_comp!=NULL) {
j=0;
for (s=pdcch_symbols; ssymbols_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_plot2,I,Q,j,"","","");
//fl_set_xyplot_xbounds(form->scatter_plot,-2000,2000);
//fl_set_xyplot_ybounds(form->scatter_plot,-2000,2000);
}
free(llr);
free(llr_time);
}
#endif
void lte_param_init(unsigned char N_tx, unsigned char N_rx,unsigned char transmission_mode,unsigned char extended_prefix_flag,uint8_t frame_type,uint16_t Nid_cell,uint8_t N_RB_DL,uint8_t osf)
{
LTE_DL_FRAME_PARMS *lte_frame_parms;
int i;
printf("Start lte_param_init, frame_type %d, extended_prefix %d\n",frame_type,extended_prefix_flag);
PHY_vars_eNB = malloc(sizeof(PHY_VARS_eNB));
PHY_vars_eNB1 = malloc(sizeof(PHY_VARS_eNB));
PHY_vars_eNB2 = malloc(sizeof(PHY_VARS_eNB));
PHY_vars_UE[0] = malloc(sizeof(PHY_VARS_UE));
PHY_vars_UE[1] = malloc(sizeof(PHY_VARS_UE));
//PHY_config = malloc(sizeof(PHY_CONFIG));
mac_xface = malloc(sizeof(MAC_xface));
randominit(0);
set_taus_seed(0);
lte_frame_parms = &(PHY_vars_eNB->lte_frame_parms);
lte_frame_parms->N_RB_DL = N_RB_DL; //50 for 10MHz and 25 for 5 MHz
lte_frame_parms->N_RB_UL = N_RB_DL;
lte_frame_parms->Ncp = extended_prefix_flag;
lte_frame_parms->Nid_cell = Nid_cell;
lte_frame_parms->nushift = Nid_cell%6;
lte_frame_parms->phich_config_common.phich_resource = oneSixth;
lte_frame_parms->nb_antennas_tx = N_tx;
lte_frame_parms->nb_antennas_rx = N_rx;
// lte_frame_parms->Csrs = 2;
// lte_frame_parms->Bsrs = 0;
// lte_frame_parms->kTC = 0;
// lte_frame_parms->n_RRC = 0;
lte_frame_parms->mode1_flag = (transmission_mode == 1)? 1 : 0;
lte_frame_parms->tdd_config = 3;
lte_frame_parms->frame_type = frame_type;
lte_frame_parms->node_id = 2;
init_frame_parms(lte_frame_parms,osf);
phy_init_top(lte_frame_parms); //allocation
lte_frame_parms->twiddle_fft = twiddle_fft;
lte_frame_parms->twiddle_ifft = twiddle_ifft;
lte_frame_parms->rev = rev;
phy_init_lte_top(lte_frame_parms);
memcpy((void*)&PHY_vars_UE[0]->lte_frame_parms,(void*)&PHY_vars_eNB->lte_frame_parms,sizeof(LTE_DL_FRAME_PARMS));
memcpy((void*)&PHY_vars_UE[1]->lte_frame_parms,(void*)&PHY_vars_eNB->lte_frame_parms,sizeof(LTE_DL_FRAME_PARMS));
phy_init_lte_ue(PHY_vars_UE[0],1,0);
for (i=0; i<3; i++)
lte_gold(lte_frame_parms,PHY_vars_UE[0]->lte_gold_table[i],i);
PHY_vars_UE[0]->Mod_id = 0;
phy_init_lte_ue(PHY_vars_UE[1],1,0);
for (i=0; i<3; i++)
lte_gold(lte_frame_parms,PHY_vars_UE[1]->lte_gold_table[i],i);
PHY_vars_UE[1]->Mod_id = 1;
phy_init_lte_eNB(PHY_vars_eNB,0,0,0);
memcpy((void*)&PHY_vars_eNB1->lte_frame_parms,(void*)&PHY_vars_eNB->lte_frame_parms,sizeof(LTE_DL_FRAME_PARMS));
PHY_vars_eNB1->lte_frame_parms.nushift=1;
PHY_vars_eNB1->lte_frame_parms.Nid_cell=2;
memcpy((void*)&PHY_vars_eNB2->lte_frame_parms,(void*)&PHY_vars_eNB->lte_frame_parms,sizeof(LTE_DL_FRAME_PARMS));
PHY_vars_eNB2->lte_frame_parms.nushift=2;
PHY_vars_eNB2->lte_frame_parms.Nid_cell=3;
phy_init_lte_eNB(PHY_vars_eNB1,0,0,0);
phy_init_lte_eNB(PHY_vars_eNB2,0,0,0);
phy_init_lte_top(lte_frame_parms);
printf("Done lte_param_init\n");
}
int main(int argc, char **argv)
{
char c;
int i,iout,l,aa,aarx;
double sigma2, sigma2_dB=0,SNR,snr0=10.0,snr1=11.0;
uint8_t snr1set=0;
//mod_sym_t **txdataF;
#ifdef IFFT_FPGA
int **txdataF2;
#endif
int **txdata,**txdata1,**txdata2;
double **s_re,**s_im,**s_re1,**s_im1,**s_re2,**s_im2,**r_re,**r_im,**r_re1,**r_im1,**r_re2,**r_im2;
double iqim = 0.0;
unsigned char pbch_pdu[6];
FILE *output_fd=NULL;
uint8_t write_output_file=0;
int trial, n_errors=0,n_errors2=0,n_alamouti=0;
uint8_t transmission_mode = 1,n_tx=1,n_rx=1;
unsigned char eNb_id = 0;
uint16_t Nid_cell=0;
uint8_t awgn_flag=0;
int n_frames=1;
channel_desc_t *eNB2UE=NULL,*eNB2UE1=NULL,*eNB2UE2=NULL;
uint32_t nsymb,tx_lev=0;
uint8_t extended_prefix_flag=0,frame_type=1;
int8_t interf1=-21,interf2=-21;
LTE_DL_FRAME_PARMS *frame_parms;
#ifdef EMOS
fifo_dump_emos emos_dump;
#endif
FILE *input_fd=NULL,*pbch_file_fd=NULL;
char input_val_str[50],input_val_str2[50];
uint8_t num_pdcch_symbols=1;
uint16_t NB_RB=25;
SCM_t channel_model=Rayleigh8;
uint8_t abstraction_flag=0;
double pbch_sinr;
uint8_t N_RB_DL=25,osf=1;
int openair_fd=(int)0;
int tcxo=74,fc=0;
unsigned char temp[4];
int oai_hw_input=0;
int oai_hw_output=0;
DCI_ALLOC_t dci_alloc[8],dci_alloc_rx[8];
uint16_t n_rnti=1234,dci_cnt;
uint16_t coded_bits_per_codeword;
double tmp_re,tmp_im,foff,deltaF=0.0,cs,sn;
uint32_t carrier_freq[4]= {1907600000,1907600000,1907600000,1907600000};
uint32_t rf_mode[4] = {55759,55759,55759,55759};
uint32_t rf_local[4] = {8254681, 8254816, 8254617, 8254617}; //eNB khalifa
//{8255067,8254810,8257340,8257340}; // eNB PETRONAS
uint32_t rf_vcocal[4] = {910,910,910,910};
uint32_t rf_rxdc[4] = {32896,32896,32896,32896};
uint32_t rxgain[4]= {30,30,30,30};
uint32_t do_forms=0;
int ret;
#ifdef XFORMS
FD_lte_scope *form_dl=NULL;
FD_lte_scope *form_dl1=NULL;
char title[255];
#endif
int UE_idx,N_carriers=1,subframe=2;
int dual_stream_flag=0;
unsigned char i_mod = 2;
int rx_offset_mod;
#ifdef RTAI_ENABLED
int period;
RTIME expected;
RT_TASK *task;
#define PERIOD 1000000000
#endif
logInit();
number_of_cards = 1;
openair_daq_vars.rx_rf_mode = 1;
/*
rxdataF = (int **)malloc16(2*sizeof(int*));
rxdataF[0] = (int *)malloc16(FRAME_LENGTH_BYTES);
rxdataF[1] = (int *)malloc16(FRAME_LENGTH_BYTES);
rxdata = (int **)malloc16(2*sizeof(int*));
rxdata[0] = (int *)malloc16(FRAME_LENGTH_BYTES);
rxdata[1] = (int *)malloc16(FRAME_LENGTH_BYTES);
*/
while ((c = getopt (argc, argv, "aehc:f:g:i:j:n:r:s:t:x:y:z:A:F:N:O:R:S:ZYDT:C:G:dB:U:u")) != -1) {
switch (c) {
case 'a':
printf("Running AWGN simulation\n");
awgn_flag = 1;
break;
case 'f':
output_fd = fopen(optarg,"w");
write_output_file=1;
break;
case 'g':
switch((char)*optarg) {
case 'A':
channel_model=SCM_A;
break;
case 'B':
channel_model=SCM_B;
break;
case 'C':
channel_model=SCM_C;
break;
case 'D':
channel_model=SCM_D;
break;
case 'E':
channel_model=EPA;
break;
case 'F':
channel_model=EVA;
break;
case 'G':
channel_model=ETU;
break;
default:
msg("Unsupported channel model!\n");
exit(-1);
}
break;
case 'C':
sscanf(optarg,"%d,%d,%d,%d",&carrier_freq[0],&carrier_freq[1],&carrier_freq[2],&carrier_freq[3]);
printf("Configuring for frequencies %d,%d,%d,%d\n",carrier_freq[0],carrier_freq[1],carrier_freq[2],carrier_freq[3]);
//carrier_freq = atoi(optarg);
break;
case 'G':
sscanf(optarg,"%d,%d,%d,%d",&rxgain[0],&rxgain[1],&rxgain[2],&rxgain[3]);
printf("Configuring for gains %d,%d,%d,%d\n",rxgain[0],rxgain[1],rxgain[2],rxgain[3]);
//rxgain = atoi(optarg);
break;
case 'i':
interf1=atoi(optarg);
break;
case 'c':
deltaF=atof(optarg);
break;
case 'j':
interf2=atoi(optarg);
break;
case 'n':
n_frames = atoi(optarg);
break;
case 's':
snr0 = atof(optarg);
msg("Setting SNR0 to %f\n",snr0);
break;
case 'S':
snr1 = atof(optarg);
snr1set=1;
msg("Setting SNR1 to %f\n",snr1);
break;
/*
case 't':
Td= atof(optarg);
break;
*/
case 'e':
extended_prefix_flag=1;
break;
case 'd':
do_forms=1;
break;
case 'r':
n_rnti=atoi(optarg);
break;
case 'x':
transmission_mode=atoi(optarg);
if ((transmission_mode!=1) &&
(transmission_mode!=2) &&
(transmission_mode!=5) &&
(transmission_mode!=6)) {
msg("Unsupported transmission mode %d\n",transmission_mode);
exit(-1);
}
break;
case 'y':
n_tx=atoi(optarg);
if ((n_tx==0) || (n_tx>2)) {
msg("Unsupported number of tx antennas %d\n",n_tx);
exit(-1);
}
break;
case 'z':
n_rx=atoi(optarg);
if ((n_rx==0) || (n_rx>2)) {
msg("Unsupported number of rx antennas %d\n",n_rx);
exit(-1);
}
break;
/*
case 'A':
abstraction_flag=1;
ntrials=10000;
msg("Running Abstraction test\n");
pbch_file_fd=fopen(optarg,"r");
if (pbch_file_fd==NULL) {
printf("Problem with filename %s\n",optarg);
exit(-1);
}
break;
*/
case 'D':
frame_type=0;
msg("Running in FDD\n");
break;
case 'N':
Nid_cell = atoi(optarg);
break;
case 'R':
N_RB_DL = atoi(optarg);
break;
case 'O':
osf = atoi(optarg);
break;
case 'Z':
oai_hw_input = 1;
break;
case 'Y':
oai_hw_output = 1;
break;
case 'F':
input_fd = fopen(optarg,"r");
if (input_fd==NULL) {
printf("Problem with filename %s\n",optarg);
exit(-1);
}
break;
case 'T':
tcxo = atoi(optarg);
break;
case 'B':
N_carriers = atoi(optarg);
if ((N_carriers!=1) && (N_carriers!=2)) {
printf("N_carriers must be 1 or 2!\n");
exit(-1);
}
break;
case 'U':
subframe = atoi(optarg);
break;
case 'u':
dual_stream_flag=1;
break;
default:
case 'h':
printf("-h This message\n");
printf("-a Use AWGN channel and not multipath\n");
printf("-e Use extended prefix mode\n");
printf("-d Display signal output on XFORMS scope\n");
printf("-D Use FDD frame\n");
printf("-n Number of frames to simulate\n");
printf("-r RNTI for DCI detection in SF 0/5\n");
printf("-s Starting SNR, runs from SNR0 to SNR0 + 5 dB. If n_frames is 1 then just SNR is simulated\n");
printf("-S Ending SNR, runs from SNR0 to SNR1\n");
printf("-t Delay spread for multipath channel\n");
printf("-g [A,B,C,D,E,F,G] Use 3GPP SCM (A,B,C,D) or 36-101 (E-EPA,F-EVA,G-ETU) models (ignores delay spread and Ricean factor)\n");
printf("-c Frequency offset\n");
printf("-x Transmission mode (1,2,6 for the moment)\n");
printf("-y Number of TX antennas used in eNB\n");
printf("-z Number of RX antennas used in UE\n");
printf("-i Relative strength of first intefering eNB (in dB) - cell_id mod 3 = 1\n");
printf("-j Relative strength of second intefering eNB (in dB) - cell_id mod 3 = 2\n");
printf("-N Nid_cell\n");
printf("-R N_RB_DL\n");
printf("-O oversampling factor (1,2,4,8,16)\n");
//printf("-A Interpolation_filname Run with Abstraction to generate Scatter plot using interpolation polynomial in file\n");
printf("-f Output filename (.txt format) for Pe/SNR results\n");
printf("-F Input filename (.txt format) for RX conformance testing\n");
printf("-Y just generate tx frame and send it to hardware\n");
printf("-Z grab frame from hardware and do rx processing\n");
printf("-T set TCXO parameter on CBMIMO1 hardware\n");
printf("-C set frequency for ExpressMIMO hardware. Can take up to four parameters in format f1,f2,f3,f4\n");
printf("-G set RX gain for ExpressMIMO hardware. Can take up to four parameters in format g1,g2,g3,g4\n");
printf("-d enables the graphical display");
exit (-1);
break;
}
}
#ifdef RTAI_ENABLED
if (!(task = rt_task_init_schmod(nam2num("SYNCSIM"), 0, 0, 0, SCHED_FIFO, 0xF))) {
printf("CANNOT INIT MASTER TASK\n");
exit(1);
}
rt_set_periodic_mode();
period = start_rt_timer(nano2count(PERIOD));
mlockall(MCL_CURRENT | MCL_FUTURE);
rt_make_hard_real_time();
rt_task_make_periodic(task, expected = rt_get_time() + 10*period, period);
#endif
#ifdef XFORMS
if (do_forms==1) {
fl_initialize (&argc, argv, NULL, 0, 0);
form_dl = create_form_lte_scope();
sprintf (title, "LTE DL SCOPE UE carrier 0");
fl_show_form (form_dl->lte_scope, FL_PLACE_HOTSPOT, FL_FULLBORDER, title);
if (N_carriers==2) {
form_dl1 = create_form_lte_scope();
sprintf (title, "LTE DL SCOPE UE carrier 1");
fl_show_form (form_dl1->lte_scope, FL_PLACE_HOTSPOT, FL_FULLBORDER, title);
}
}
#endif
if (transmission_mode==2)
n_tx=2;
lte_param_init(n_tx,n_rx,transmission_mode,extended_prefix_flag,
frame_type,Nid_cell,N_RB_DL,osf);
if (snr1set==0) {
if (n_frames==1)
snr1 = snr0+.1;
else
snr1 = snr0+5.0;
}
printf("SNR0 %f, SNR1 %f\n",snr0,snr1);
frame_parms = &PHY_vars_eNB->lte_frame_parms;
frame_parms->dual_tx = 0;
frame_parms->freq_idx = 0;
for (i=0; i<4; i++) {
frame_parms->carrier_freq[i] = carrier_freq[i];
frame_parms->carrier_freqtx[i] = carrier_freq[i];
frame_parms->rxgain[i] = rxgain[i];
frame_parms->rfmode[i] = rf_mode[i];
frame_parms->rflocal[i] = rf_local[i];
frame_parms->rfvcolocal[i] = rf_vcocal[i];
frame_parms->rxdc[i] = rf_rxdc[i];
}
if (oai_hw_input == 1) {
openair_fd=setup_oai_hw(frame_parms);
setup_ue_buffers(PHY_vars_UE[0],frame_parms,0);
if (N_carriers==2)
setup_ue_buffers(PHY_vars_UE[1],frame_parms,1);
}
if (oai_hw_output == 1) {
openair_fd=setup_oai_hw(frame_parms);
setup_eNB_buffers(PHY_vars_eNB,frame_parms);
}
if ((oai_hw_input==1) ||
(oai_hw_output==1)) {
msg("setting TCXO to %d\n",tcxo);
ioctl(openair_fd,openair_SET_TCXO_DAC,(void *)&tcxo);
}
#ifdef IFFT_FPGA
txdata = (int **)malloc16(2*sizeof(int*));
txdata[0] = (int *)malloc16(FRAME_LENGTH_BYTES);
txdata[1] = (int *)malloc16(FRAME_LENGTH_BYTES);
bzero(txdata[0],FRAME_LENGTH_BYTES);
bzero(txdata[1],FRAME_LENGTH_BYTES);
txdataF2 = (int **)malloc16(2*sizeof(int*));
txdataF2[0] = (int *)malloc16(FRAME_LENGTH_BYTES_NO_PREFIX);
txdataF2[1] = (int *)malloc16(FRAME_LENGTH_BYTES_NO_PREFIX);
bzero(txdataF2[0],FRAME_LENGTH_BYTES_NO_PREFIX);
bzero(txdataF2[1],FRAME_LENGTH_BYTES_NO_PREFIX);
#else
txdata = PHY_vars_eNB->lte_eNB_common_vars.txdata[eNb_id];
txdata1 = PHY_vars_eNB1->lte_eNB_common_vars.txdata[eNb_id];
txdata2 = PHY_vars_eNB2->lte_eNB_common_vars.txdata[eNb_id];
#endif
s_re = malloc(2*sizeof(double*));
s_im = malloc(2*sizeof(double*));
s_re1 = malloc(2*sizeof(double*));
s_im1 = malloc(2*sizeof(double*));
s_re2 = malloc(2*sizeof(double*));
s_im2 = malloc(2*sizeof(double*));
r_re = malloc(2*sizeof(double*));
r_im = malloc(2*sizeof(double*));
r_re1 = malloc(2*sizeof(double*));
r_im1 = malloc(2*sizeof(double*));
r_re2 = malloc(2*sizeof(double*));
r_im2 = malloc(2*sizeof(double*));
nsymb = (frame_parms->Ncp == 0) ? 14 : 12;
printf("FFT Size %d, Extended Prefix %d, Samples per subframe %d, Symbols per subframe %d\n",NUMBER_OF_OFDM_CARRIERS,
frame_parms->Ncp,frame_parms->samples_per_tti,nsymb);
eNB2UE = new_channel_desc_scm(PHY_vars_eNB->lte_frame_parms.nb_antennas_tx,
PHY_vars_UE[0]->lte_frame_parms.nb_antennas_rx,
channel_model,
BW,
0,
0,
0);
if (interf1>-20)
eNB2UE1 = new_channel_desc_scm(PHY_vars_eNB->lte_frame_parms.nb_antennas_tx,
PHY_vars_UE[0]->lte_frame_parms.nb_antennas_rx,
channel_model,
BW,
0,
0,
0);
if (interf2>-20)
eNB2UE2 = new_channel_desc_scm(PHY_vars_eNB->lte_frame_parms.nb_antennas_tx,
PHY_vars_UE[0]->lte_frame_parms.nb_antennas_rx,
channel_model,
BW,
0,
0,
0);
if (eNB2UE==NULL) {
msg("Problem generating channel model. Exiting.\n");
exit(-1);
}
for (i=0; i<2; i++) {
s_re[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
bzero(s_re[i],FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
s_im[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
bzero(s_im[i],FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
s_re1[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
bzero(s_re1[i],FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
s_im1[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
bzero(s_im1[i],FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
s_re2[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
bzero(s_re2[i],FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
s_im2[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
bzero(s_im2[i],FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
r_re[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
bzero(r_re[i],FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
r_im[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
bzero(r_im[i],FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
r_re1[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
bzero(r_re1[i],FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
r_im1[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
bzero(r_im1[i],FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
r_re2[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
bzero(r_re2[i],FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
r_im2[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
bzero(r_im2[i],FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
}
for (i=0; i<2; i++) {
PHY_vars_UE[0]->dlsch_ue[0][i] = new_ue_dlsch(1,8,0);
if (!PHY_vars_UE[0]->dlsch_ue[0][i]) {
printf("Can't get ue dlsch structures\n");
exit(-1);
}
}
for (i=0; i<2; i++) {
PHY_vars_UE[1]->dlsch_ue[0][i] = new_ue_dlsch(1,8,0);
if (!PHY_vars_UE[1]->dlsch_ue[0][i]) {
printf("Can't get ue dlsch structures\n");
exit(-1);
}
}
PHY_vars_UE[0]->transmission_mode[0] = transmission_mode;
PHY_vars_UE[1]->transmission_mode[0] = transmission_mode;
// if (pbch_file_fd!=NULL) {
// load_pbch_desc(pbch_file_fd);
// }
if ((input_fd==NULL)&&(oai_hw_input==0)) {
// for (i=0;i<6;i++)
// pbch_pdu[i] = i;
//pbch_pdu[0]=100;
//pbch_pdu[1]=1;
//pbch_pdu[2]=0;
((uint8_t*) pbch_pdu)[0] = 0;
switch (PHY_vars_eNB->lte_frame_parms.N_RB_DL) {
case 6:
((uint8_t*) pbch_pdu)[0] = (((uint8_t*) pbch_pdu)[0]&0x1f) | (0<<5);
break;
case 15:
((uint8_t*) pbch_pdu)[0] = (((uint8_t*) pbch_pdu)[0]&0x1f) | (1<<5);
break;
case 25:
((uint8_t*) pbch_pdu)[0] = (((uint8_t*) pbch_pdu)[0]&0x1f) | (2<<5);
break;
case 50:
((uint8_t*) pbch_pdu)[0] = (((uint8_t*) pbch_pdu)[0]&0x1f) | (3<<5);
break;
case 100:
((uint8_t*) pbch_pdu)[0] = (((uint8_t*) pbch_pdu)[0]&0x1f) | (4<<5);
break;
default:
((uint8_t*) pbch_pdu)[0] = (((uint8_t*) pbch_pdu)[0]&0x1f) | (2<<5);
break;
}
((uint8_t*) pbch_pdu)[0] = (((uint8_t*) pbch_pdu)[0]&0xef) |
((PHY_vars_eNB->lte_frame_parms.phich_config_common.phich_duration << 4)&0x10);
switch (PHY_vars_eNB->lte_frame_parms.phich_config_common.phich_resource) {
case oneSixth:
((uint8_t*) pbch_pdu)[0] = (((uint8_t*) pbch_pdu)[0]&0xf3) | (0<<3);
break;
case half:
((uint8_t*) pbch_pdu)[0] = (((uint8_t*) pbch_pdu)[0]&0xf3) | (1<<3);
break;
case one:
((uint8_t*) pbch_pdu)[0] = (((uint8_t*) pbch_pdu)[0]&0xf3) | (2<<3);
break;
case two:
((uint8_t*) pbch_pdu)[0] = (((uint8_t*) pbch_pdu)[0]&0xf3) | (3<<3);
break;
default:
break;
}
((uint8_t*) pbch_pdu)[0] = (((uint8_t*) pbch_pdu)[0]&0xfc) | ((PHY_vars_eNB->frame>>8)&0x3);
((uint8_t*) pbch_pdu)[1] = PHY_vars_eNB->frame&0xfc;
((uint8_t*) pbch_pdu)[2] = 0;
if (PHY_vars_eNB->lte_frame_parms.frame_type == 1) {
generate_pss(PHY_vars_eNB->lte_eNB_common_vars.txdataF[0],
AMP,
&PHY_vars_eNB->lte_frame_parms,
2,
2);
generate_pss(PHY_vars_eNB->lte_eNB_common_vars.txdataF[0],
AMP,
&PHY_vars_eNB->lte_frame_parms,
2,
12);
generate_sss(PHY_vars_eNB->lte_eNB_common_vars.txdataF[0],
AMP,
&PHY_vars_eNB->lte_frame_parms,
(PHY_vars_eNB->lte_frame_parms.Ncp==0) ? 6 : 5,
1);
generate_sss(PHY_vars_eNB->lte_eNB_common_vars.txdataF[0],
AMP,
&PHY_vars_eNB->lte_frame_parms,
(PHY_vars_eNB->lte_frame_parms.Ncp==0) ? 6 : 5,
11);
} else {
generate_pss(PHY_vars_eNB->lte_eNB_common_vars.txdataF[0],
AMP,
&PHY_vars_eNB->lte_frame_parms,
(PHY_vars_eNB->lte_frame_parms.Ncp==0) ? 6 : 5,
0);
generate_sss(PHY_vars_eNB->lte_eNB_common_vars.txdataF[0],
AMP,
&PHY_vars_eNB->lte_frame_parms,
(PHY_vars_eNB->lte_frame_parms.Ncp==0) ? 5 : 4,
0);
generate_pss(PHY_vars_eNB->lte_eNB_common_vars.txdataF[0],
AMP,
&PHY_vars_eNB->lte_frame_parms,
(PHY_vars_eNB->lte_frame_parms.Ncp==0) ? 6 : 5,
10);
generate_sss(PHY_vars_eNB->lte_eNB_common_vars.txdataF[0],
AMP,
&PHY_vars_eNB->lte_frame_parms,
(PHY_vars_eNB->lte_frame_parms.Ncp==0) ? 5 : 4,
10);
}
printf("Generating PBCH for mode1_flag = %d, frame_type %d\n", PHY_vars_eNB->lte_frame_parms.mode1_flag,PHY_vars_eNB->lte_frame_parms.frame_type);
generate_pilots(PHY_vars_eNB,
PHY_vars_eNB->lte_eNB_common_vars.txdataF[0],
AMP,
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME);
generate_pbch(&PHY_vars_eNB->lte_eNB_pbch,
PHY_vars_eNB->lte_eNB_common_vars.txdataF[0],
AMP,
&PHY_vars_eNB->lte_frame_parms,
pbch_pdu,
0);
/*
generate_pbch(PHY_vars_eNB->lte_eNB_common_vars.txdataF[0],
AMP,
&PHY_vars_eNB->lte_frame_parms,
pbch_pdu,
3);
*/
if (interf1>-20) {
generate_pss(PHY_vars_eNB1->lte_eNB_common_vars.txdataF[0],
AMP,
&PHY_vars_eNB1->lte_frame_parms,
(PHY_vars_eNB1->lte_frame_parms.Ncp==0)?6:5,
0);
generate_pilots(PHY_vars_eNB1,
PHY_vars_eNB1->lte_eNB_common_vars.txdataF[0],
AMP,
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME);
generate_pbch(&PHY_vars_eNB1->lte_eNB_pbch,
PHY_vars_eNB1->lte_eNB_common_vars.txdataF[0],
AMP,
&PHY_vars_eNB1->lte_frame_parms,
pbch_pdu,
0);
}
if (interf2>-20) {
generate_pss(PHY_vars_eNB2->lte_eNB_common_vars.txdataF[0],
AMP,
&PHY_vars_eNB2->lte_frame_parms,
(PHY_vars_eNB2->lte_frame_parms.Ncp==0)?6:5,
0);
generate_pilots(PHY_vars_eNB2,
PHY_vars_eNB2->lte_eNB_common_vars.txdataF[0],
AMP,
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME);
generate_pbch(&PHY_vars_eNB2->lte_eNB_pbch,
PHY_vars_eNB2->lte_eNB_common_vars.txdataF[0],
AMP,
&PHY_vars_eNB2->lte_frame_parms,
pbch_pdu,
0);
}
// Generate two PDCCH
if (frame_type == 0) {
((DCI1_5MHz_FDD_t*)&DLSCH_alloc_pdu)->rah = 0;
((DCI1_5MHz_FDD_t*)&DLSCH_alloc_pdu)->rballoc = DLSCH_RB_ALLOC;
((DCI1_5MHz_FDD_t*)&DLSCH_alloc_pdu)->TPC = 0;
((DCI1_5MHz_FDD_t*)&DLSCH_alloc_pdu)->harq_pid = 0;
((DCI1_5MHz_FDD_t*)&DLSCH_alloc_pdu)->mcs = 0;
((DCI1_5MHz_FDD_t*)&DLSCH_alloc_pdu)->ndi = 1;
((DCI1_5MHz_FDD_t*)&DLSCH_alloc_pdu)->rv = 0;
dci_alloc[0].dci_length = sizeof_DCI1_5MHz_FDD_t;
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu,sizeof(DCI1_5MHz_FDD_t));
dci_alloc[0].L = 2;
dci_alloc[0].rnti = n_rnti;
dci_alloc[0].format = format1;
} else {
((DCI1E_5MHz_2A_M10PRB_TDD_t*)&DLSCH_alloc_pdu)->rah = 0;
((DCI1E_5MHz_2A_M10PRB_TDD_t*)&DLSCH_alloc_pdu)->rballoc = DLSCH_RB_ALLOC;
((DCI1E_5MHz_2A_M10PRB_TDD_t*)&DLSCH_alloc_pdu)->TPC = 0;
((DCI1E_5MHz_2A_M10PRB_TDD_t*)&DLSCH_alloc_pdu)->dai = 0;
((DCI1E_5MHz_2A_M10PRB_TDD_t*)&DLSCH_alloc_pdu)->harq_pid = 0;
((DCI1E_5MHz_2A_M10PRB_TDD_t*)&DLSCH_alloc_pdu)->mcs = 0;
((DCI1E_5MHz_2A_M10PRB_TDD_t*)&DLSCH_alloc_pdu)->ndi = 1;
((DCI1E_5MHz_2A_M10PRB_TDD_t*)&DLSCH_alloc_pdu)->rv = 0;
((DCI1E_5MHz_2A_M10PRB_TDD_t*)&DLSCH_alloc_pdu)->tpmi = (transmission_mode>=5 ? 5 : 0); // precoding
((DCI1E_5MHz_2A_M10PRB_TDD_t*)&DLSCH_alloc_pdu)->dl_power_off = (transmission_mode==5 ? 0 : 1);
dci_alloc[0].dci_length = sizeof_DCI1E_5MHz_2A_M10PRB_TDD_t;
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu,sizeof(DCI1E_5MHz_2A_M10PRB_TDD_t));
dci_alloc[0].L = 2;
dci_alloc[0].rnti = n_rnti;
dci_alloc[0].format = format1E_2A_M10PRB;
}
num_pdcch_symbols = generate_dci_top(1,
0,
dci_alloc,
0,
AMP,
&PHY_vars_eNB->lte_frame_parms,
PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNb_id],
subframe);
/*
num_pdcch_symbols = generate_dci_top(1,
0,
dci_alloc,
0,
AMP,
&PHY_vars_eNB->lte_frame_parms,
PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNb_id],
5);
*/
// write_output("pilotsF.m","rsF",txdataF[0],lte_frame_parms->ofdm_symbol_size,1,1);
#ifdef IFFT_FPGA
write_output("txsigF0.m","txsF0", PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNb_id][0],300*120,1,4);
if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1)
write_output("txsigF1.m","txsF1", PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNb_id][1],300*120,1,4);
for (i=0; i<10; i++)
debug_msg("%08x\n",((unsigned int*)&PHY_vars_eNB->lte_eNB_common_vars.txdataF[0][0][1*(PHY_vars_eNB->lte_frame_parms.N_RB_DL*12)*(PHY_vars_eNB->lte_frame_parms.symbols_per_tti>>1)])[i]);
// do talbe lookup and write results to txdataF2
for (aa=0; aalte_frame_parms.nb_antennas_tx; aa++) {
l = 0;
for (i=0; i=1) && (i%512<=150))
txdataF2[aa][i] = ((int*)mod_table)[PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNb_id][aa][l++]];
else if (i%512>=362)
txdataF2[aa][i] = ((int*)mod_table)[PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNb_id][aa][l++]];
else
txdataF2[aa][i] = 0;
//printf("l=%d\n",l);
}
write_output("txsigF20.m","txsF20", txdataF2[0],FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX,1,1);
if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1)
write_output("txsigF21.m","txsF21", txdataF2[1],FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX,1,1);
tx_lev=0;
for (aa=0; aalte_frame_parms.nb_antennas_tx; aa++) {
if (frame_parms->Ncp == 1)
PHY_ofdm_mod(txdataF2[aa], // input
txdata[aa], // output
PHY_vars_eNB->lte_frame_parms.log2_symbol_size, // log2_fft_size
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*nsymb, // number of symbols
PHY_vars_eNB->lte_frame_parms.nb_prefix_samples, // number of prefix samples
PHY_vars_eNB->lte_frame_parms.twiddle_ifft, // IFFT twiddle factors
PHY_vars_eNB->lte_frame_parms.rev, // bit-reversal permutation
CYCLIC_PREFIX);
else {
normal_prefix_mod(txdataF2[aa],txdata[aa],LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*nsymb,frame_parms);
}
tx_lev += signal_energy(&txdata[aa][0],
OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES);
}
#else
write_output("txsigF0.m","txsF0", PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNb_id][0],FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX,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[eNb_id][1],FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX,1,1);
tx_lev = 0;
for (aa=0; aalte_frame_parms.nb_antennas_tx; aa++) {
if (frame_parms->Ncp == 1)
PHY_ofdm_mod(PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNb_id][aa], // input,
txdata[aa], // output
frame_parms->log2_symbol_size, // log2_fft_size
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*nsymb, // 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(PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNb_id][aa],
txdata[aa],
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*nsymb,
frame_parms);
}
tx_lev += signal_energy(&txdata[aa][0],
OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES);
}
if (interf1>-20) {
for (aa=0; aalte_frame_parms.nb_antennas_tx; aa++) {
if (frame_parms->Ncp == 1)
PHY_ofdm_mod(PHY_vars_eNB1->lte_eNB_common_vars.txdataF[eNb_id][aa], // input,
PHY_vars_eNB1->lte_eNB_common_vars.txdata[eNb_id][aa], // output
frame_parms->log2_symbol_size, // log2_fft_size
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*nsymb, // 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(PHY_vars_eNB1->lte_eNB_common_vars.txdataF[eNb_id][aa],
PHY_vars_eNB1->lte_eNB_common_vars.txdata[eNb_id][aa],
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*nsymb,
frame_parms);
}
}
}
if (interf2>-20) {
for (aa=0; aalte_frame_parms.nb_antennas_tx; aa++) {
if (frame_parms->Ncp == 1)
PHY_ofdm_mod(PHY_vars_eNB2->lte_eNB_common_vars.txdataF[eNb_id][aa], // input,
PHY_vars_eNB2->lte_eNB_common_vars.txdata[eNb_id][aa], // output
frame_parms->log2_symbol_size, // log2_fft_size
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*nsymb, // 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(PHY_vars_eNB2->lte_eNB_common_vars.txdataF[eNb_id][aa],
PHY_vars_eNB2->lte_eNB_common_vars.txdata[eNb_id][aa],
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*nsymb,
frame_parms);
}
}
}
#endif
write_output("txsig0.m","txs0", txdata[0],FRAME_LENGTH_COMPLEX_SAMPLES,1,1);
if (frame_parms->nb_antennas_tx>1)
write_output("txsig1.m","txs1", txdata[1],FRAME_LENGTH_COMPLEX_SAMPLES,1,1);
} else if ((oai_hw_input==0)&&(oai_hw_output==0)) { //read in from file
i=0;
while (!feof(input_fd)) {
ret=fscanf(input_fd,"%s %s",input_val_str,input_val_str2);//&input_val1,&input_val2);
/*
if ((i%4)==0) {
((short*)txdata[0])[i/2] = (short)((1<<15)*strtod(input_val_str,NULL));
((short*)txdata[0])[(i/2)+1] = (short)((1<<15)*strtod(input_val_str2,NULL));
if ((i/4)<100)
printf("sample %d => %e + j%e (%d +j%d)\n",i/4,strtod(input_val_str,NULL),strtod(input_val_str2,NULL),((short*)txdata[0])[i/4],((short*)txdata[0])[(i/4)+1]);//1,input_val2,);
}
*/
((short*)txdata[0])[i<<1] = 16*(short)(strtod(input_val_str,NULL));
((short*)txdata[0])[(i<<1)+1] = 16*(short)(strtod(input_val_str2,NULL));
i++;
if (i==(FRAME_LENGTH_COMPLEX_SAMPLES))
break;
}
printf("Read in %d samples (%d)\n",i,FRAME_LENGTH_COMPLEX_SAMPLES);
write_output("txsig0.m","txs0", txdata[0],10*frame_parms->samples_per_tti,1,1);
// write_output("txsig1.m","txs1", txdata[1],FRAME_LENGTH_COMPLEX_SAMPLES,1,1);
tx_lev = signal_energy(&txdata[0][0],
OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES);
} else { // get from OAI HW
// set check if we have to set up a signal generator here
printf("Doing Acquisition from OAI HW\n");
snr0=snr1-.1;
}
foff = deltaF/(PHY_vars_UE[0]->lte_frame_parms.ofdm_symbol_size*15e3);
for (i=0; ilte_frame_parms.nb_antennas_tx; aa++) {
tmp_re = (double)((short*)txdata[aa])[(i<<1)]*cs - (double)((short*)txdata[aa])[1+(i<<1)]*sn;
tmp_im = (double)((short*)txdata[aa])[1+(i<<1)]*cs + (double)((short*)txdata[aa])[(i<<1)]*sn;
if (awgn_flag == 0) {
s_re[aa][i] = tmp_re;
s_im[aa][i] = tmp_im;
if (interf1>-20) {
s_re1[aa][i] = ((double)(((short *)txdata1[aa]))[(i<<1)]);
s_im1[aa][i] = ((double)(((short *)txdata1[aa]))[(i<<1)+1]);
}
if (interf2>-20) {
s_re2[aa][i] = ((double)(((short *)txdata2[aa]))[(i<<1)]);
s_im2[aa][i] = ((double)(((short *)txdata2[aa]))[(i<<1)+1]);
}
} else {
for (aarx=0; aarxlte_frame_parms.nb_antennas_rx; aarx++) {
if (aa==0) {
r_re[aarx][i] = tmp_re;//((double)(((short *)txdata[aa]))[(i<<1)]);
r_im[aarx][i] = tmp_im;//((double)(((short *)txdata[aa]))[(i<<1)+1]);
} else {
r_re[aarx][i] += tmp_re;//((double)(((short *)txdata[aa]))[(i<<1)]);
r_im[aarx][i] += tmp_im;//((double)(((short *)txdata[aa]))[(i<<1)+1]);
}
/*
if (interf1>=-20) {
r_re[aarx][i]+= pow(10.0,.05*interf1)*((double)(((short *)PHY_vars_eNB1->lte_eNB_common_vars.txdata[eNb_id][aa]))[(i<<1)]);
r_im[aarx][i]+= pow(10.0,.05*interf1)*((double)(((short *)PHY_vars_eNB1->lte_eNB_common_vars.txdata[eNb_id][aa]))[(i<<1)+1]);
}
if (interf2>=-20) {
r_re[aarx][i]+=pow(10.0,.05*interf2)*((double)(((short *)PHY_vars_eNB2->lte_eNB_common_vars.txdata[eNb_id][aa]))[(i<<1)]);
r_im[aarx][i]+=pow(10.0,.05*interf2)*((double)(((short *)PHY_vars_eNB2->lte_eNB_common_vars.txdata[eNb_id][aa]))[(i<<1)+1]);
}
*/
}
}
}
}
if (oai_hw_output==0) {
for (SNR=snr0; SNR-20)
multipath_channel(eNB2UE1,s_re1,s_im1,r_re1,r_im1,
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES,0);
if (interf2>-20)
multipath_channel(eNB2UE2,s_re2,s_im2,r_re2,r_im2,
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES,0);
} // awgn_flag
sigma2_dB = 10*log10((double)tx_lev) +10*log10(PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size/(12*NB_RB)) - SNR;
if (n_frames==1)
printf("sigma2_dB %f (SNR %f dB) tx_lev_dB %f\n",sigma2_dB,SNR,10*log10((double)tx_lev));
//AWGN
sigma2 = pow(10,sigma2_dB/10);
/*
if (n_frames==1) {
printf("rx_level data symbol %f, tx_lev %f\n",
10*log10(signal_energy_fp(r_re,r_im,1,OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES,0)),
10*log10(tx_lev));
}
*/
iout = 0;//taus()%(FRAME_LENGTH_COMPLEX_SAMPLES>>2);
for (i=0; ilte_frame_parms.nb_antennas_rx; aa++) {
r_re[aa][i] += (pow(10.0,.05*interf1)*r_re1[aa][i] + pow(10.0,.05*interf2)*r_re2[aa][i]);
r_im[aa][i] += (pow(10.0,.05*interf1)*r_im1[aa][i] + pow(10.0,.05*interf2)*r_im2[aa][i]);
((short*) PHY_vars_UE[0]->lte_ue_common_vars.rxdata[aa])[2*i] = (short) (.167*(r_re[aa][i] +sqrt(sigma2/2)*gaussdouble(0.0,1.0)));
((short*) PHY_vars_UE[0]->lte_ue_common_vars.rxdata[aa])[(2*i)+1] = (short) (.167*(r_im[aa][i] + (iqim*r_re[aa][i]) + sqrt(sigma2/2)*gaussdouble(0.0,1.0)));
}
iout++;
if (iout==FRAME_LENGTH_COMPLEX_SAMPLES)
iout=0;
}
} else {
fc=0;
ioctl(openair_fd,openair_GET_BUFFER,(void *)&fc);
// sleep(1);
}
// printf("Calling initial_sync\n");
PHY_vars_UE[0]->rx_offset = 0;
PHY_vars_UE[0]->lte_frame_parms.frame_type = 1;
PHY_vars_UE[0]->lte_frame_parms.Ncp = 0;
PHY_vars_UE[0]->lte_frame_parms.Nid_cell = 0;
if (initial_sync(PHY_vars_UE[0],normal_txrx)==0) {
//if (1) {
printf("Synchronized to %s %s prefix Cell with id %d\n",
(PHY_vars_UE[0]->lte_frame_parms.frame_type == 0) ? "FDD\0" : "TDD\0",
(PHY_vars_UE[0]->lte_frame_parms.Ncp == 0) ? "Normal\0" : "Extended\0",
PHY_vars_UE[0]->lte_frame_parms.Nid_cell);
if (subframe*PHY_vars_UE[0]->lte_frame_parms.samples_per_tti+PHY_vars_UE[0]->rx_offset>
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*PHY_vars_UE[0]->lte_frame_parms.samples_per_tti)
rx_offset_mod = PHY_vars_UE[0]->rx_offset - LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*PHY_vars_UE[0]->lte_frame_parms.samples_per_tti;
else
rx_offset_mod = PHY_vars_UE[0]->rx_offset;
// overwrite some values until source is sure
PHY_vars_UE[0]->lte_frame_parms.N_RB_DL=N_RB_DL;
PHY_vars_UE[0]->lte_frame_parms.phich_config_common.phich_duration=0;
PHY_vars_UE[0]->lte_frame_parms.phich_config_common.phich_resource = oneSixth;
generate_pcfich_reg_mapping(&PHY_vars_UE[0]->lte_frame_parms);
generate_phich_reg_mapping(&PHY_vars_UE[0]->lte_frame_parms);
if (N_carriers==2) {
PHY_vars_UE[1]->lte_frame_parms = PHY_vars_UE[0]->lte_frame_parms;
for (i=0; i<3; i++)
lte_gold(&PHY_vars_UE[1]->lte_frame_parms,PHY_vars_UE[1]->lte_gold_table[i],i);
generate_pcfich_reg_mapping(&PHY_vars_UE[1]->lte_frame_parms);
generate_phich_reg_mapping(&PHY_vars_UE[1]->lte_frame_parms);
}
for (UE_idx=0; UE_idxlte_frame_parms.Ncp==0)?4:3)); l++) {
slot_fep(PHY_vars_UE[UE_idx],
l,
subframe<<1,
rx_offset_mod,
0);
}
PHY_vars_UE[UE_idx]->lte_ue_pdcch_vars[0]->crnti = n_rnti;
PHY_vars_UE[UE_idx]->transmission_mode[0] = transmission_mode;
PHY_vars_UE[UE_idx]->UE_mode[0] = PUSCH;
printf("Fine Frequency offset %d\n",PHY_vars_UE[UE_idx]->lte_ue_common_vars.freq_offset);
printf("Doing PDCCH RX : num_pdcch_symbols at TX %d\n",num_pdcch_symbols);
rx_pdcch(&PHY_vars_UE[UE_idx]->lte_ue_common_vars,
PHY_vars_UE[UE_idx]->lte_ue_pdcch_vars,
&PHY_vars_UE[UE_idx]->lte_frame_parms,
subframe,
0,
(PHY_vars_UE[UE_idx]->lte_frame_parms.mode1_flag == 1) ? SISO : ALAMOUTI,
PHY_vars_UE[UE_idx]->is_secondary_ue);
printf("Got PCFICH for %d pdcch symbols\n",PHY_vars_UE[UE_idx]->lte_ue_pdcch_vars[0]->num_pdcch_symbols);
dci_cnt = dci_decoding_procedure(PHY_vars_UE[UE_idx],
dci_alloc_rx,
0,
0,
subframe);
printf("Found %d DCIs\n",dci_cnt);
if (dci_cnt>0) {
generate_ue_dlsch_params_from_dci(subframe,
(void *)&dci_alloc_rx[0].dci_pdu,
PHY_vars_UE[UE_idx]->lte_ue_pdcch_vars[0]->crnti,
dci_alloc_rx[0].format,
PHY_vars_UE[UE_idx]->dlsch_ue[0],
&PHY_vars_UE[UE_idx]->lte_frame_parms,
PHY_vars_UE[UE_idx]->pdsch_config_dedicated,
SI_RNTI,
0,
P_RNTI);
i_mod = get_Qm(PHY_vars_UE[UE_idx]->dlsch_ue[0][0]->harq_processes[0]->mcs);
/*
// overwrite some values until source is sure
PHY_vars_UE[UE_idx]->dlsch_ue[0][0]->nb_rb = 25;
PHY_vars_UE[UE_idx]->dlsch_ue[0][0]->rb_alloc[0] = 0x1ffffff;
PHY_vars_UE[UE_idx]->dlsch_ue[0][0]->harq_processes[0]->Ndi = 1;
PHY_vars_UE[UE_idx]->dlsch_ue[0][0]->harq_processes[0]->mcs = 0;
*/
dump_dci(&PHY_vars_UE[UE_idx]->lte_frame_parms, &dci_alloc_rx[0]);
for (l=PHY_vars_UE[UE_idx]->lte_ue_pdcch_vars[0]->num_pdcch_symbols;
l<(((PHY_vars_UE[UE_idx]->lte_frame_parms.Ncp==0)?4:3));
l++) {
rx_pdsch(PHY_vars_UE[UE_idx],
PDSCH,
0,
1,
subframe, // subframe,
l, // symbol
(l==PHY_vars_UE[UE_idx]->lte_ue_pdcch_vars[0]->num_pdcch_symbols)?1:0, // first_symbol_flag
dual_stream_flag, // dual stream
i_mod);
}
for (l=1+(PHY_vars_UE[UE_idx]->lte_frame_parms.Ncp==0)?4:3 ;
l<((PHY_vars_UE[UE_idx]->lte_frame_parms.Ncp==0)?7:6);
l++) {
slot_fep(PHY_vars_UE[UE_idx],
l,
subframe<<1,
rx_offset_mod,
0);
}
slot_fep(PHY_vars_UE[UE_idx],
0,
(subframe<<1)+1,
rx_offset_mod,
0);
for (l=(PHY_vars_UE[UE_idx]->lte_frame_parms.Ncp==0)?4:3 ;
l<((PHY_vars_UE[UE_idx]->lte_frame_parms.Ncp==0)?7:6);
l++) {
rx_pdsch(PHY_vars_UE[UE_idx],
PDSCH,
0,
1,
subframe, // subframe,
l, // symbol
0, // first_symbol_flag
dual_stream_flag, // dual stream
i_mod);
}
for (l=1;
l<1+((PHY_vars_UE[UE_idx]->lte_frame_parms.Ncp==0)?4:3);
l++) {
slot_fep(PHY_vars_UE[UE_idx],
l,
(subframe<<1)+1, //slot 1
rx_offset_mod,
0);
}
for (l=(PHY_vars_UE[UE_idx]->lte_frame_parms.Ncp==0)?7:6 ;
l<((PHY_vars_UE[UE_idx]->lte_frame_parms.Ncp==0)?11:9);
l++) {
rx_pdsch(PHY_vars_UE[UE_idx],
PDSCH,
0,
1,
subframe, // subframe,
l, // symbol
0, // first_symbol_flag
dual_stream_flag, // dual stream
i_mod);
}
for (l=1+(PHY_vars_UE[UE_idx]->lte_frame_parms.Ncp==0)?4:3 ;
l<((PHY_vars_UE[UE_idx]->lte_frame_parms.Ncp==0)?7:6);
l++) {
slot_fep(PHY_vars_UE[UE_idx],
l,
(subframe<<1)+1,
rx_offset_mod,
0);
}
slot_fep(PHY_vars_UE[UE_idx],
0,
(subframe<<1)+2, //slot 1
rx_offset_mod,
0);
for (l=(PHY_vars_UE[UE_idx]->lte_frame_parms.Ncp==0)?11:9 ;
l<((PHY_vars_UE[UE_idx]->lte_frame_parms.Ncp==0)?14:12);
l++) {
rx_pdsch(PHY_vars_UE[UE_idx],
PDSCH,
0,
1,
subframe, // subframe,
l, // symbol
0, // first_symbol_flag
dual_stream_flag, // dual stream
i_mod);
}
coded_bits_per_codeword = get_G(&PHY_vars_UE[UE_idx]->lte_frame_parms,
PHY_vars_UE[UE_idx]->dlsch_ue[0][0]->nb_rb,
PHY_vars_UE[UE_idx]->dlsch_ue[0][0]->rb_alloc,
get_Qm(PHY_vars_UE[UE_idx]->dlsch_ue[0][0]->harq_processes[PHY_vars_UE[UE_idx]->dlsch_ue[0][0]->current_harq_pid]->mcs),
PHY_vars_UE[UE_idx]->lte_ue_pdcch_vars[0]->num_pdcch_symbols,
subframe);
printf("G %d, TBS %d, pdcch_sym %d\n",
coded_bits_per_codeword,
dlsch_tbs25[get_I_TBS(PHY_vars_UE[UE_idx]->dlsch_ue[0][0]->harq_processes[0]->mcs)][PHY_vars_UE[UE_idx]->dlsch_ue[0][0]->nb_rb-1],
num_pdcch_symbols);
dlsch_unscrambling(&PHY_vars_UE[UE_idx]->lte_frame_parms,
PHY_vars_UE[UE_idx]->lte_ue_pdcch_vars[0]->num_pdcch_symbols,
PHY_vars_UE[UE_idx]->dlsch_ue[0][0],
coded_bits_per_codeword,
PHY_vars_UE[UE_idx]->lte_ue_pdsch_vars[0]->llr[0],
0,
subframe<<1);
ret = dlsch_decoding(PHY_vars_UE[UE_idx],
PHY_vars_UE[UE_idx]->lte_ue_pdsch_vars[0]->llr[0],
&PHY_vars_UE[UE_idx]->lte_frame_parms,
PHY_vars_UE[UE_idx]->dlsch_ue[0][0],
subframe,
0,
PHY_vars_UE[UE_idx]->lte_ue_pdcch_vars[0]->num_pdcch_symbols);
if (ret <= MAX_TURBO_ITERATIONS)
printf("DLSCH decoded correctly!!!\n");
else
printf("DLSCH not decoded!\n");
}
} //UE_idx
} //if sync
else {
if (PHY_vars_UE[0]->lte_frame_parms.Nid_cell != Nid_cell)
n_errors2++;
else
n_errors++;
}
#ifdef XFORMS
if (do_forms==1) {
do_forms2(form_dl,
frame_parms,
PHY_vars_UE[0]->lte_ue_pdcch_vars[0]->num_pdcch_symbols,
(int16_t**)PHY_vars_UE[0]->lte_ue_common_vars.dl_ch_estimates_time,
(int16_t**)PHY_vars_UE[0]->lte_ue_common_vars.dl_ch_estimates[0],
(int16_t**)PHY_vars_UE[0]->lte_ue_common_vars.rxdata,
(int16_t**)PHY_vars_UE[0]->lte_ue_common_vars.rxdataF,
(int16_t*)PHY_vars_UE[0]->lte_ue_pdcch_vars[0]->rxdataF_comp[0],
(int16_t*)PHY_vars_UE[0]->lte_ue_pdsch_vars[0]->rxdataF_comp[0],
(int16_t*)PHY_vars_UE[0]->lte_ue_pdsch_vars[1]->rxdataF_comp[0],
(int16_t*)PHY_vars_UE[0]->lte_ue_pdsch_vars[0]->llr[0],
(int16_t*)PHY_vars_UE[0]->lte_ue_pbch_vars[0]->rxdataF_comp[0],
(int8_t*)PHY_vars_UE[0]->lte_ue_pbch_vars[0]->llr,
coded_bits_per_codeword);
if (N_carriers==2)
do_forms2(form_dl1,
frame_parms,
PHY_vars_UE[1]->lte_ue_pdcch_vars[0]->num_pdcch_symbols,
(int16_t**)PHY_vars_UE[1]->lte_ue_common_vars.dl_ch_estimates_time,
(int16_t**)PHY_vars_UE[1]->lte_ue_common_vars.dl_ch_estimates[0],
(int16_t**)PHY_vars_UE[1]->lte_ue_common_vars.rxdata,
(int16_t**)PHY_vars_UE[1]->lte_ue_common_vars.rxdataF,
(int16_t*)PHY_vars_UE[1]->lte_ue_pdcch_vars[0]->rxdataF_comp[0],
(int16_t*)PHY_vars_UE[1]->lte_ue_pdsch_vars[0]->rxdataF_comp[0],
(int16_t*)PHY_vars_UE[1]->lte_ue_pdsch_vars[3]->rxdataF_comp[0],
(int16_t*)PHY_vars_UE[1]->lte_ue_pdsch_vars[0]->llr[0],
(int16_t*)PHY_vars_UE[1]->lte_ue_pbch_vars[0]->rxdataF_comp[0],
(int8_t*)PHY_vars_UE[1]->lte_ue_pbch_vars[0]->llr,
1920);
}
#endif
} // trials
} // SNR
if (n_frames==1) {
write_output("H00.m","h00",&(PHY_vars_UE[0]->lte_ue_common_vars.dl_ch_estimates[0][0][0]),((frame_parms->Ncp==0)?7:6)*(PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size),1,1);
if (n_tx==2)
write_output("H10.m","h10",&(PHY_vars_UE[0]->lte_ue_common_vars.dl_ch_estimates[0][2][0]),((frame_parms->Ncp==0)?7:6)*(PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size),1,1);
write_output("rxsig0.m","rxs0", PHY_vars_UE[0]->lte_ue_common_vars.rxdata[0],FRAME_LENGTH_COMPLEX_SAMPLES,1,1);
write_output("rxsigF0.m","rxsF0", PHY_vars_UE[0]->lte_ue_common_vars.rxdataF[0],NUMBER_OF_OFDM_CARRIERS*LTE_NUMBER_OF_SUBFRAMES_PER_FRAME*nsymb,2,1);
write_output("PBCH_rxF0_ext.m","pbch0_ext",PHY_vars_UE[0]->lte_ue_pbch_vars[0]->rxdataF_ext[0],12*4*6,1,1);
write_output("PBCH_rxF0_comp.m","pbch0_comp",PHY_vars_UE[0]->lte_ue_pbch_vars[0]->rxdataF_comp[0],12*4*6,1,1);
write_output("PBCH_rxF_llr.m","pbch_llr",PHY_vars_UE[0]->lte_ue_pbch_vars[0]->llr,(frame_parms->Ncp==0) ? 1920 : 1728,1,4);
write_output("pdcch_rxF_ext0.m","pdcch_rxF_ext0",PHY_vars_UE[0]->lte_ue_pdcch_vars[eNb_id]->rxdataF_ext[0],3*300,1,1);
write_output("pdcch_rxF_comp0.m","pdcch0_rxF_comp0",PHY_vars_UE[0]->lte_ue_pdcch_vars[eNb_id]->rxdataF_comp[0],4*300,1,1);
write_output("pdcch_rxF_llr.m","pdcch_llr",PHY_vars_UE[0]->lte_ue_pdcch_vars[eNb_id]->llr,2400,1,4);
coded_bits_per_codeword = get_G(&PHY_vars_UE[0]->lte_frame_parms,
PHY_vars_UE[0]->dlsch_ue[0][0]->nb_rb,
PHY_vars_UE[0]->dlsch_ue[0][0]->rb_alloc,
get_Qm(PHY_vars_UE[0]->dlsch_ue[0][0]->harq_processes[0]->mcs),
PHY_vars_UE[0]->lte_ue_pdcch_vars[0]->num_pdcch_symbols,
0);
dump_dlsch2(PHY_vars_UE[0],0,coded_bits_per_codeword);
}
} else {
printf("Sending frame to OAI HW\n");
temp[0] = 110;
temp[1] = 110;
temp[2] = 110;
temp[3] = 110;
ioctl(openair_fd,openair_SET_TX_GAIN,(void *)&temp[0]);
ioctl(openair_fd,openair_START_TX_SIG,(void *)NULL);
}
#ifdef RTAI_ENABLED
rt_make_soft_real_time();
rt_task_delete(task);
#endif
#ifdef XFORMS
if (do_forms==1) {
fl_hide_form(form_dl->lte_scope);
fl_free_form(form_dl->lte_scope);
}
#endif
#ifdef IFFT_FPGA
free(txdataF2[0]);
free(txdataF2[1]);
free(txdataF2);
free(txdata[0]);
free(txdata[1]);
free(txdata);
#endif
for (i=0; i<2; i++) {
printf("Freeing s_re[%d]\n",i);
free(s_re[i]);
printf("Freeing s_im[%d]\n",i);
free(s_im[i]);
printf("Freeing r_re[%d]\n",i);
free(r_re[i]);
printf("Freeing r_im[%d]\n",i);
free(r_im[i]);
}
printf("Freeing s_re\n");
free(s_re);
printf("Freeing s_im\n");
free(s_im);
printf("Freeing r_re\n");
free(r_re);
printf("Freeing r_im\n");
free(r_im);
lte_sync_time_free();
if (write_output_file)
fclose(output_fd);
if ((oai_hw_input==1)||
(oai_hw_output==1)) {
close(openair_fd);
}
return(n_errors);
}
/*
for (i=1;i<4;i++)
memcpy((void *)&PHY_vars->tx_vars[0].TX_DMA_BUFFER[i*12*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES_NO_PREFIX*2],
(void *)&PHY_vars->tx_vars[0].TX_DMA_BUFFER[0],
12*OFDM_SYMBOL_SIZE_SAMPLES_NO_PREFIX*2);
*/