lte_phy_scope.c 29.7 KB
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/*******************************************************************************
    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 <http://www.gnu.org/licenses/>.

  Contact Information
  OpenAirInterface Admin: openair_admin@eurecom.fr
  OpenAirInterface Tech : openair_tech@eurecom.fr
  OpenAirInterface Dev  : openair4g-devel@eurecom.fr
  
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  Address      : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
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 *******************************************************************************/
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/* Form definition file generated by fdesign */

#include <stdlib.h>
#include "lte_phy_scope.h"

#define TPUT_WINDOW_LENGTH 100
int otg_enabled;

FL_COLOR rx_antenna_colors[4] = {FL_RED,FL_BLUE,FL_GREEN,FL_YELLOW};

float tput_time_enb[NUMBER_OF_UE_MAX][TPUT_WINDOW_LENGTH] = {{0}};
float tput_enb[NUMBER_OF_UE_MAX][TPUT_WINDOW_LENGTH] = {{0}};
float tput_time_ue[NUMBER_OF_UE_MAX][TPUT_WINDOW_LENGTH] = {{0}};
float tput_ue[NUMBER_OF_UE_MAX][TPUT_WINDOW_LENGTH] = {{0}};
float tput_ue_max[NUMBER_OF_UE_MAX] = {0};

static void ia_receiver_on_off( FL_OBJECT *button, long arg) {

    if (fl_get_button(button)) {
        fl_set_object_label(button, "IA Receiver ON");
        openair_daq_vars.use_ia_receiver = 1;
        fl_set_object_color(button, FL_GREEN, FL_GREEN);
    } else {
        fl_set_object_label(button, "IA Receiver OFF");
        openair_daq_vars.use_ia_receiver = 0;
        fl_set_object_color(button, FL_RED, FL_RED);
    }
}

static void dl_traffic_on_off( FL_OBJECT *button, long arg) {

    if (fl_get_button(button)) {
        fl_set_object_label(button, "DL Traffic ON");
        otg_enabled = 1;
        fl_set_object_color(button, FL_GREEN, FL_GREEN);
    } else {
        fl_set_object_label(button, "DL Traffic OFF");
        otg_enabled = 0;
        fl_set_object_color(button, FL_RED, FL_RED);
    }
}

FD_lte_phy_scope_enb *create_lte_phy_scope_enb( void ) {

    FL_OBJECT *obj;
    FD_lte_phy_scope_enb *fdui = fl_malloc( sizeof *fdui );
    
    // Define form
    fdui->lte_phy_scope_enb = fl_bgn_form( FL_NO_BOX, 800, 600 );

    // This the whole UI box
    obj = fl_add_box( FL_BORDER_BOX, 0, 0, 800, 600, "" );
    fl_set_object_color( obj, FL_BLACK, FL_BLACK );

    // Received signal
    fdui->rxsig_t = fl_add_xyplot( FL_NORMAL_XYPLOT, 20, 20, 370, 100, "Received Signal (Time-Domain, dB)" );
    fl_set_object_boxtype( fdui->rxsig_t, FL_EMBOSSED_BOX );
    fl_set_object_color( fdui->rxsig_t, FL_BLACK, FL_RED );
    fl_set_object_lcolor( fdui->rxsig_t, FL_WHITE ); // Label color
    fl_set_xyplot_ybounds(fdui->rxsig_t,30,70);

    // Time-domain channel response
    fdui->chest_t = fl_add_xyplot( FL_NORMAL_XYPLOT, 410, 20, 370, 100, "Channel Impulse Response (samples, abs)" );
    fl_set_object_boxtype( fdui->chest_t, FL_EMBOSSED_BOX );
    fl_set_object_color( fdui->chest_t, FL_BLACK, FL_RED );
    fl_set_object_lcolor( fdui->chest_t, FL_WHITE ); // Label color

    // Frequency-domain channel response
    fdui->chest_f = fl_add_xyplot( FL_IMPULSE_XYPLOT, 20, 140, 760, 100, "Channel Frequency  Response (RE, dB)" );
    fl_set_object_boxtype( fdui->chest_f, FL_EMBOSSED_BOX );
    fl_set_object_color( fdui->chest_f, FL_BLACK, FL_RED );
    fl_set_object_lcolor( fdui->chest_f, FL_WHITE ); // Label color
    fl_set_xyplot_ybounds( fdui->chest_f,30,70);

    // LLR of PUSCH
    fdui->pusch_llr = fl_add_xyplot( FL_POINTS_XYPLOT, 20, 260, 500, 200, "PUSCH Log-Likelihood Ratios (LLR, mag)" );
    fl_set_object_boxtype( fdui->pusch_llr, FL_EMBOSSED_BOX );
    fl_set_object_color( fdui->pusch_llr, FL_BLACK, FL_YELLOW );
    fl_set_object_lcolor( fdui->pusch_llr, FL_WHITE ); // Label color
    fl_set_xyplot_symbolsize( fdui->pusch_llr,2);    

    // I/Q PUSCH comp
    fdui->pusch_comp = fl_add_xyplot( FL_POINTS_XYPLOT, 540, 260, 240, 200, "PUSCH I/Q of MF Output" );
    fl_set_object_boxtype( fdui->pusch_comp, FL_EMBOSSED_BOX );
    fl_set_object_color( fdui->pusch_comp, FL_BLACK, FL_YELLOW );
    fl_set_object_lcolor( fdui->pusch_comp, FL_WHITE ); // Label color
    fl_set_xyplot_symbolsize( fdui->pusch_comp,2);
    fl_set_xyplot_xgrid( fdui->pusch_llr,FL_GRID_MAJOR);
    
    // Throughput on PUSCH
    fdui->pusch_tput = fl_add_xyplot( FL_NORMAL_XYPLOT, 20, 480, 500, 100, "PUSCH Throughput [frame]/[kbit/s]" );
    fl_set_object_boxtype( fdui->pusch_tput, FL_EMBOSSED_BOX );
    fl_set_object_color( fdui->pusch_tput, FL_BLACK, FL_WHITE );
    fl_set_object_lcolor( fdui->pusch_tput, FL_WHITE ); // Label color

    // Generic eNB Button
    fdui->button_0 = fl_add_button( FL_PUSH_BUTTON, 540, 480, 240, 40, "" );
    fl_set_object_lalign(fdui->button_0, FL_ALIGN_CENTER );
    fl_set_button(fdui->button_0,0);
    otg_enabled = 0;
    fl_set_object_label(fdui->button_0, "DL Traffic OFF");
    fl_set_object_color(fdui->button_0, FL_RED, FL_RED);  
    fl_set_object_callback(fdui->button_0, dl_traffic_on_off, 0 );

    fl_end_form( );
    fdui->lte_phy_scope_enb->fdui = fdui;

    return fdui;
}

void phy_scope_eNB(FD_lte_phy_scope_enb *form, 
                   PHY_VARS_eNB *phy_vars_enb,
                   int UE_id) {
    int eNB_id = 0;
    int i,arx,atx,ind,k;
    LTE_DL_FRAME_PARMS *frame_parms = &phy_vars_enb->lte_frame_parms;
    int nsymb_ce = 12*frame_parms->N_RB_UL*frame_parms->symbols_per_tti;
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    uint8_t nb_antennas_rx = frame_parms->nb_antennas_rx;
    uint8_t nb_antennas_tx = 1; // frame_parms->nb_antennas_tx; // in LTE Rel. 8 and 9 only a single transmit antenna is assumed at the UE
    int16_t **rxsig_t;
    int16_t **chest_t;
    int16_t **chest_f;
    int16_t *pusch_llr;
    int16_t *pusch_comp;
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    float Re,Im,ymax;
    float *llr, *bit;
    float I[nsymb_ce*2], Q[nsymb_ce*2];
    float rxsig_t_dB[nb_antennas_rx][FRAME_LENGTH_COMPLEX_SAMPLES];
    float chest_t_abs[nb_antennas_rx][frame_parms->ofdm_symbol_size];
    float *chest_f_abs;
    float time[FRAME_LENGTH_COMPLEX_SAMPLES];
    float freq[nsymb_ce*nb_antennas_rx*nb_antennas_tx];
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    int frame = phy_vars_enb->proc[0].frame_tx;
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    uint32_t total_dlsch_bitrate = phy_vars_enb->total_dlsch_bitrate;
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    int coded_bits_per_codeword = 0;
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    uint8_t harq_pid; // in TDD config 3 it is sf-2, i.e., can be 0,1,2
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    int mcs = 0;
    // choose max MCS to compute coded_bits_per_codeword
    if (phy_vars_enb->ulsch_eNB[UE_id]!=NULL) {
        for (harq_pid=0;harq_pid<3;harq_pid++) {
            mcs = cmax(phy_vars_enb->ulsch_eNB[UE_id]->harq_processes[harq_pid]->mcs,mcs);
        }
    }

    coded_bits_per_codeword = frame_parms->N_RB_UL*12*get_Qm(mcs)*frame_parms->symbols_per_tti;

    chest_f_abs = (float*) calloc(nsymb_ce*nb_antennas_rx*nb_antennas_tx,sizeof(float));    
    llr = (float*) calloc(coded_bits_per_codeword,sizeof(float)); // init to zero
    bit = malloc(coded_bits_per_codeword*sizeof(float));
    
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    rxsig_t = (int16_t**) phy_vars_enb->lte_eNB_common_vars.rxdata[eNB_id];
    chest_t = (int16_t**) phy_vars_enb->lte_eNB_pusch_vars[UE_id]->drs_ch_estimates_time[eNB_id];
    chest_f = (int16_t**) phy_vars_enb->lte_eNB_pusch_vars[UE_id]->drs_ch_estimates[eNB_id];
    pusch_llr = (int16_t*) phy_vars_enb->lte_eNB_pusch_vars[UE_id]->llr;
    pusch_comp = (int16_t*) phy_vars_enb->lte_eNB_pusch_vars[UE_id]->rxdataF_comp[eNB_id][0];
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    // Received signal in time domain of receive antenna 0
    if (rxsig_t != NULL) { 
        if (rxsig_t[0] != NULL) { 
            for (i=0; i<FRAME_LENGTH_COMPLEX_SAMPLES; i++) {
                rxsig_t_dB[0][i] = 10*log10(1.0+(float) ((rxsig_t[0][2*i])*(rxsig_t[0][2*i])+(rxsig_t[0][2*i+1])*(rxsig_t[0][2*i+1])));
                time[i] = (float) i;
            }
            fl_set_xyplot_data(form->rxsig_t,time,rxsig_t_dB[0],FRAME_LENGTH_COMPLEX_SAMPLES,"","","");
        }
        
        for (arx=1;arx<nb_antennas_rx;arx++) {
            if (rxsig_t[arx] != NULL) { 
                for (i=0; i<FRAME_LENGTH_COMPLEX_SAMPLES; i++) {
                    rxsig_t_dB[arx][i] = 10*log10(1.0+(float) ((rxsig_t[arx][2*i])*(rxsig_t[arx][2*i])+(rxsig_t[arx][2*i+1])*(rxsig_t[arx][2*i+1])));
                }
                fl_add_xyplot_overlay(form->rxsig_t,arx,time,rxsig_t_dB[arx],FRAME_LENGTH_COMPLEX_SAMPLES,rx_antenna_colors[arx]);
            }
        }
    }
    
    // Channel Impulse Response (still repeated format)
    if (chest_t != NULL) {
        ymax = 0;
        if (chest_t[0] !=NULL) {
            for (i=0; i<(frame_parms->ofdm_symbol_size); i++) {
                chest_t_abs[0][i] = (float) (chest_t[0][4*i]*chest_t[0][4*i]+chest_t[0][4*i+1]*chest_t[0][4*i+1]);
                if (chest_t_abs[0][i] > ymax) 
                    ymax = chest_t_abs[0][i];
            }
            fl_set_xyplot_data(form->chest_t,time,chest_t_abs[0],(frame_parms->ofdm_symbol_size),"","","");
        }
        for (arx=1;arx<nb_antennas_rx;arx++) {
            if (chest_t[arx] !=NULL) {
                for (i=0; i<(frame_parms->ofdm_symbol_size>>3); i++) {
                    chest_t_abs[arx][i] = (float) (chest_t[arx][4*i]*chest_t[arx][4*i]+chest_t[arx][4*i+1]*chest_t[arx][4*i+1]);
                    if (chest_t_abs[arx][i] > ymax) 
                        ymax = chest_t_abs[arx][i];
                }
                fl_add_xyplot_overlay(form->chest_t,arx,time,chest_t_abs[arx],(frame_parms->ofdm_symbol_size>>3),rx_antenna_colors[arx]);
                fl_set_xyplot_overlay_type(form->chest_t,arx,FL_DASHED_XYPLOT);
            }
        }
        // Avoid flickering effect
        //        fl_get_xyplot_ybounds(form->chest_t,&ymin,&ymax);
        fl_set_xyplot_ybounds(form->chest_t,0,ymax);
    }
    
    // Channel Frequency Response
    if (chest_f != NULL) {
        ind = 0;
        for (atx=0;atx<nb_antennas_tx;atx++) {
            for (arx=0;arx<nb_antennas_rx;arx++) {
                if (chest_f[(atx<<1)+arx] != NULL) {
                    for (k=0; k<nsymb_ce; k++) {                     
                        freq[ind] = (float)ind;
                        Re = (float)(chest_f[(atx<<1)+arx][(2*k)]);
                        Im = (float)(chest_f[(atx<<1)+arx][(2*k)+1]);
                        
                        chest_f_abs[ind] = (short)10*log10(1.0+((double)Re*Re + (double)Im*Im));
                        ind++;
                    }
                }
            }
        }
            
        // tx antenna 0
        fl_set_xyplot_xbounds(form->chest_f,0,nb_antennas_rx*nb_antennas_tx*nsymb_ce);
        fl_set_xyplot_xtics(form->chest_f,nb_antennas_rx*nb_antennas_tx*frame_parms->symbols_per_tti,3);
        fl_set_xyplot_xgrid(form->chest_f,FL_GRID_MAJOR);
        fl_set_xyplot_data(form->chest_f,freq,chest_f_abs,nsymb_ce,"","","");
        
        for (arx=1;arx<nb_antennas_rx;arx++) {
            fl_add_xyplot_overlay(form->chest_f,1,&freq[arx*nsymb_ce],&chest_f_abs[arx*nsymb_ce],nsymb_ce,rx_antenna_colors[arx]);
        }
        // other tx antennas
        if (nb_antennas_tx > 1) {
            if (nb_antennas_rx > 1) {
                for (atx=1;atx<nb_antennas_tx;atx++) {
                    for (arx=0;arx<nb_antennas_rx;arx++) {
                        fl_add_xyplot_overlay(form->chest_f,(atx<<1)+arx,&freq[((atx<<1)+arx)*nsymb_ce],&chest_f_abs[((atx<<1)+arx)*nsymb_ce],nsymb_ce,rx_antenna_colors[arx]);
                    }
                }
            } else { // 1 rx antenna
                atx=1; arx=0;
                fl_add_xyplot_overlay(form->chest_f,atx,&freq[atx*nsymb_ce],&chest_f_abs[atx*nsymb_ce],nsymb_ce,rx_antenna_colors[arx]);
            }
        }
    }

    // PUSCH LLRs
    if (pusch_llr != NULL) {
        for (i=0; i<coded_bits_per_codeword; i++) {
            llr[i] = (float) pusch_llr[i];
            bit[i] = (float) i;
        }
        
        fl_set_xyplot_data(form->pusch_llr,bit,llr,coded_bits_per_codeword,"","","");
    }
    
    // PUSCH I/Q of MF Output
    if (pusch_comp!=NULL) {
        ind=0;
        for (k=0; k<frame_parms->symbols_per_tti; k++) {
            for (i=0; i<12*frame_parms->N_RB_UL; i++) {
                I[ind] = pusch_comp[(2*frame_parms->N_RB_UL*12*k)+2*i];
                Q[ind] = pusch_comp[(2*frame_parms->N_RB_UL*12*k)+2*i+1];
                ind++;
            }
        }
        fl_set_xyplot_data(form->pusch_comp,I,Q,ind,"","","");
    }
    
    // PUSCH Throughput
    memcpy((void*)tput_time_enb[UE_id],(void*)&tput_time_enb[UE_id][1],(TPUT_WINDOW_LENGTH-1)*sizeof(float));
    memcpy((void*)tput_enb[UE_id],(void*)&tput_enb[UE_id][1],(TPUT_WINDOW_LENGTH-1)*sizeof(float));
    
    tput_time_enb[UE_id][TPUT_WINDOW_LENGTH-1]  = (float) frame;
    tput_enb[UE_id][TPUT_WINDOW_LENGTH-1] = ((float) total_dlsch_bitrate)/1000.0;
    
    fl_set_xyplot_data(form->pusch_tput,tput_time_enb[UE_id],tput_enb[UE_id],TPUT_WINDOW_LENGTH,"","","");
    
    //    fl_get_xyplot_ybounds(form->pusch_tput,&ymin,&ymax);
    //    fl_set_xyplot_ybounds(form->pusch_tput,0,ymax);

    fl_check_forms();
    
    free(llr);
    free(bit);
    free(chest_f_abs);
}

FD_lte_phy_scope_ue *create_lte_phy_scope_ue( void ) {

    FL_OBJECT *obj;
    FD_lte_phy_scope_ue *fdui = fl_malloc( sizeof *fdui );
    
    // Define form
    fdui->lte_phy_scope_ue = fl_bgn_form( FL_NO_BOX, 800, 900 );

    // This the whole UI box
    obj = fl_add_box( FL_BORDER_BOX, 0, 0, 800, 900, "" );
    fl_set_object_color( obj, FL_BLACK, FL_BLACK );

    // Received signal
    fdui->rxsig_t = fl_add_xyplot( FL_NORMAL_XYPLOT, 20, 20, 370, 100, "Received Signal (Time-Domain, dB)" );
    fl_set_object_boxtype( fdui->rxsig_t, FL_EMBOSSED_BOX );
    fl_set_object_color( fdui->rxsig_t, FL_BLACK, FL_RED );
    fl_set_object_lcolor( fdui->rxsig_t, FL_WHITE ); // Label color
    fl_set_xyplot_ybounds(fdui->rxsig_t,30,70);

    // Time-domain channel response
    fdui->chest_t = fl_add_xyplot( FL_NORMAL_XYPLOT, 410, 20, 370, 100, "Channel Impulse Response (samples, abs)" );
    fl_set_object_boxtype( fdui->chest_t, FL_EMBOSSED_BOX );
    fl_set_object_color( fdui->chest_t, FL_BLACK, FL_RED );
    fl_set_object_lcolor( fdui->chest_t, FL_WHITE ); // Label color

    // Frequency-domain channel response
    fdui->chest_f = fl_add_xyplot( FL_IMPULSE_XYPLOT, 20, 140, 760, 100, "Channel Frequency Response (RE, dB)" );
    fl_set_object_boxtype( fdui->chest_f, FL_EMBOSSED_BOX );
    fl_set_object_color( fdui->chest_f, FL_BLACK, FL_RED );
    fl_set_object_lcolor( fdui->chest_f, FL_WHITE ); // Label color
    fl_set_xyplot_ybounds( fdui->chest_f,30,70);

    // LLR of PBCH
    fdui->pbch_llr = fl_add_xyplot( FL_POINTS_XYPLOT, 20, 260, 500, 100, "PBCH Log-Likelihood Ratios (LLR, mag)" );
    fl_set_object_boxtype( fdui->pbch_llr, FL_EMBOSSED_BOX );
    fl_set_object_color( fdui->pbch_llr, FL_BLACK, FL_GREEN );
    fl_set_object_lcolor( fdui->pbch_llr, FL_WHITE ); // Label color
    fl_set_xyplot_symbolsize( fdui->pbch_llr,2);    
    fl_set_xyplot_xgrid( fdui->pbch_llr,FL_GRID_MAJOR);
    fl_set_xyplot_xbounds( fdui->pbch_llr,0,1920);

    // I/Q PBCH comp
    fdui->pbch_comp = fl_add_xyplot( FL_POINTS_XYPLOT, 540, 260, 240, 100, "PBCH I/Q of MF Output" );
    fl_set_object_boxtype( fdui->pbch_comp, FL_EMBOSSED_BOX );
    fl_set_object_color( fdui->pbch_comp, FL_BLACK, FL_GREEN );
    fl_set_object_lcolor( fdui->pbch_comp, FL_WHITE ); // Label color
    fl_set_xyplot_symbolsize( fdui->pbch_comp,2);
    fl_set_xyplot_xbounds( fdui->pbch_comp,-100,100);
    fl_set_xyplot_ybounds( fdui->pbch_comp,-100,100);

    // LLR of PDCCH
    fdui->pdcch_llr = fl_add_xyplot( FL_POINTS_XYPLOT, 20, 380, 500, 100, "PDCCH Log-Likelihood Ratios (LLR, mag)" );
    fl_set_object_boxtype( fdui->pdcch_llr, FL_EMBOSSED_BOX );
    fl_set_object_color( fdui->pdcch_llr, FL_BLACK, FL_CYAN );
    fl_set_object_lcolor( fdui->pdcch_llr, FL_WHITE ); // Label color
    fl_set_xyplot_symbolsize( fdui->pdcch_llr,2);    

    // I/Q PDCCH comp
    fdui->pdcch_comp = fl_add_xyplot( FL_POINTS_XYPLOT, 540, 380, 240, 100, "PDCCH I/Q of MF Output" );
    fl_set_object_boxtype( fdui->pdcch_comp, FL_EMBOSSED_BOX );
    fl_set_object_color( fdui->pdcch_comp, FL_BLACK, FL_CYAN );
    fl_set_object_lcolor( fdui->pdcch_comp, FL_WHITE ); // Label color
    fl_set_xyplot_symbolsize( fdui->pdcch_comp,2);
    fl_set_xyplot_xgrid( fdui->pdcch_llr,FL_GRID_MAJOR);

    // LLR of PDSCH
    fdui->pdsch_llr = fl_add_xyplot( FL_POINTS_XYPLOT, 20, 500, 500, 200, "PDSCH Log-Likelihood Ratios (LLR, mag)" );
    fl_set_object_boxtype( fdui->pdsch_llr, FL_EMBOSSED_BOX );
    fl_set_object_color( fdui->pdsch_llr, FL_BLACK, FL_YELLOW );
    fl_set_object_lcolor( fdui->pdsch_llr, FL_WHITE ); // Label color
    fl_set_xyplot_symbolsize( fdui->pdsch_llr,2);    
    fl_set_xyplot_xgrid( fdui->pdsch_llr,FL_GRID_MAJOR);

    // I/Q PDSCH comp
    fdui->pdsch_comp = fl_add_xyplot( FL_POINTS_XYPLOT, 540, 500, 240, 200, "PDSCH I/Q of MF Output" );
    fl_set_object_boxtype( fdui->pdsch_comp, FL_EMBOSSED_BOX );
    fl_set_object_color( fdui->pdsch_comp, FL_BLACK, FL_YELLOW );
    fl_set_object_lcolor( fdui->pdsch_comp, FL_WHITE ); // Label color
    fl_set_xyplot_symbolsize( fdui->pdsch_comp,2);
    
    // Throughput on PDSCH
    fdui->pdsch_tput = fl_add_xyplot( FL_NORMAL_XYPLOT, 20, 720, 500, 100, "PDSCH Throughput [frame]/[kbit/s]" );
    fl_set_object_boxtype( fdui->pdsch_tput, FL_EMBOSSED_BOX );
    fl_set_object_color( fdui->pdsch_tput, FL_BLACK, FL_WHITE );
    fl_set_object_lcolor( fdui->pdsch_tput, FL_WHITE ); // Label color

    // Generic UE Button
    fdui->button_0 = fl_add_button( FL_PUSH_BUTTON, 540, 720, 240, 40, "" );
    fl_set_object_lalign(fdui->button_0, FL_ALIGN_CENTER );
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    //openair_daq_vars.use_ia_receiver = 0;
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    fl_set_button(fdui->button_0,0);
    fl_set_object_label(fdui->button_0, "IA Receiver OFF");
    fl_set_object_color(fdui->button_0, FL_RED, FL_RED);  
    fl_set_object_callback(fdui->button_0, ia_receiver_on_off, 0 );
    fl_hide_object(fdui->button_0);

    fl_end_form( );
    fdui->lte_phy_scope_ue->fdui = fdui;

    return fdui;
}

void phy_scope_UE(FD_lte_phy_scope_ue *form, 
                  PHY_VARS_UE *phy_vars_ue,
                  int eNB_id,
                  int UE_id,
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                  uint8_t subframe){    
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    int i,arx,atx,ind,k;
    LTE_DL_FRAME_PARMS *frame_parms = &phy_vars_ue->lte_frame_parms;
    int nsymb_ce = frame_parms->ofdm_symbol_size*frame_parms->symbols_per_tti;
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    uint8_t nb_antennas_rx = frame_parms->nb_antennas_rx;
    uint8_t nb_antennas_tx = frame_parms->nb_antennas_tx_eNB;
    int16_t **rxsig_t;
    int16_t **chest_t;
    int16_t **chest_f;
    int16_t *pdsch_llr;
    int16_t *pdsch_comp;
    int8_t *pdcch_llr;
    int16_t *pdcch_comp;
    int8_t *pbch_llr;
    int16_t *pbch_comp;
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    float Re,Im,ymax=1;
    int num_pdcch_symbols=3;
    float *llr, *bit, *chest_f_abs, llr_pbch[1920], bit_pbch[1920], *llr_pdcch, *bit_pdcch;
    float *I, *Q;
    float rxsig_t_dB[nb_antennas_rx][FRAME_LENGTH_COMPLEX_SAMPLES];
    float **chest_t_abs;
    float time[FRAME_LENGTH_COMPLEX_SAMPLES];
    float freq[nsymb_ce*nb_antennas_rx*nb_antennas_tx];
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    int frame = phy_vars_ue->frame_rx;
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    uint32_t total_dlsch_bitrate = phy_vars_ue->bitrate[eNB_id];
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    int coded_bits_per_codeword = 0;
    int mcs = 0;
    unsigned char harq_pid = 0;
    if (phy_vars_ue->dlsch_ue[eNB_id][0]!=NULL) {
        harq_pid = phy_vars_ue->dlsch_ue[eNB_id][0]->current_harq_pid;
	if (harq_pid>=8)
	  return;
        mcs = phy_vars_ue->dlsch_ue[eNB_id][0]->harq_processes[harq_pid]->mcs;    
        // Button 0
        if(!phy_vars_ue->dlsch_ue[eNB_id][0]->harq_processes[harq_pid]->dl_power_off) {
            // we are in TM5
            fl_show_object(form->button_0);
        } 
    }        
    
    if (phy_vars_ue->lte_ue_pdcch_vars[eNB_id]!=NULL) {
        num_pdcch_symbols = phy_vars_ue->lte_ue_pdcch_vars[eNB_id]->num_pdcch_symbols;
    }

    //    coded_bits_per_codeword = frame_parms->N_RB_DL*12*get_Qm(mcs)*(frame_parms->symbols_per_tti);
    if (phy_vars_ue->dlsch_ue[eNB_id][0]!=NULL) {
        coded_bits_per_codeword = get_G(frame_parms,
                                        phy_vars_ue->dlsch_ue[eNB_id][0]->harq_processes[harq_pid]->nb_rb,
                                        phy_vars_ue->dlsch_ue[eNB_id][0]->harq_processes[harq_pid]->rb_alloc,
                                        get_Qm(mcs),
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					phy_vars_ue->dlsch_ue[eNB_id][0]->harq_processes[harq_pid]->Nl,
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                                        num_pdcch_symbols,
                                        frame,
                                        subframe);
    } else {
        coded_bits_per_codeword = frame_parms->N_RB_DL*12*get_Qm(mcs)*(frame_parms->symbols_per_tti);
    }
    
    I = (float*) calloc(nsymb_ce*2,sizeof(float));
    Q = (float*) calloc(nsymb_ce*2,sizeof(float));
    chest_t_abs = (float**) malloc(nb_antennas_rx*sizeof(float*));
    for (arx=0;arx<nb_antennas_rx;arx++) {
        chest_t_abs[arx] = (float*) calloc(frame_parms->ofdm_symbol_size,sizeof(float));
    }
    chest_f_abs = (float*) calloc(nsymb_ce*nb_antennas_rx*nb_antennas_tx,sizeof(float));
    llr = (float*) calloc(coded_bits_per_codeword,sizeof(float)); // init to zero
    bit = malloc(coded_bits_per_codeword*sizeof(float));
    llr_pdcch = (float*) calloc(12*frame_parms->N_RB_DL*num_pdcch_symbols*2,sizeof(float)); // init to zero
    bit_pdcch = (float*) calloc(12*frame_parms->N_RB_DL*num_pdcch_symbols*2,sizeof(float));
    
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    rxsig_t = (int16_t**) phy_vars_ue->lte_ue_common_vars.rxdata;
    chest_t = (int16_t**) phy_vars_ue->lte_ue_common_vars.dl_ch_estimates_time[eNB_id];
    chest_f = (int16_t**) phy_vars_ue->lte_ue_common_vars.dl_ch_estimates[eNB_id];
    pbch_llr = (int8_t*) phy_vars_ue->lte_ue_pbch_vars[eNB_id]->llr;
    pbch_comp = (int16_t*) phy_vars_ue->lte_ue_pbch_vars[eNB_id]->rxdataF_comp[0];
    pdcch_llr = (int8_t*) phy_vars_ue->lte_ue_pdcch_vars[eNB_id]->llr;
    pdcch_comp = (int16_t*) phy_vars_ue->lte_ue_pdcch_vars[eNB_id]->rxdataF_comp[0];
    pdsch_llr = (int16_t*) phy_vars_ue->lte_ue_pdsch_vars[eNB_id]->llr[0]; // stream 0
    //    pdsch_llr = (int16_t*) phy_vars_ue->lte_ue_pdsch_vars_SI[eNB_id]->llr[0]; // stream 0
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    pdsch_comp = (int16_t*) phy_vars_ue->lte_ue_pdsch_vars[eNB_id]->rxdataF_comp0[0];
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    // Received signal in time domain of receive antenna 0
    if (rxsig_t != NULL) { 
        if (rxsig_t[0] != NULL) { 
            for (i=0; i<FRAME_LENGTH_COMPLEX_SAMPLES; i++) {
                rxsig_t_dB[0][i] = 10*log10(1.0+(float) ((rxsig_t[0][2*i])*(rxsig_t[0][2*i])+(rxsig_t[0][2*i+1])*(rxsig_t[0][2*i+1])));
                time[i] = (float) i;
            }
            fl_set_xyplot_data(form->rxsig_t,time,rxsig_t_dB[0],FRAME_LENGTH_COMPLEX_SAMPLES,"","","");
        }
        
        for (arx=1;arx<nb_antennas_rx;arx++) {
            if (rxsig_t[arx] != NULL) { 
                for (i=0; i<FRAME_LENGTH_COMPLEX_SAMPLES; i++) {
                    rxsig_t_dB[arx][i] = 10*log10(1.0+(float) ((rxsig_t[arx][2*i])*(rxsig_t[arx][2*i])+(rxsig_t[arx][2*i+1])*(rxsig_t[arx][2*i+1])));
                }
                fl_add_xyplot_overlay(form->rxsig_t,arx,time,rxsig_t_dB[arx],FRAME_LENGTH_COMPLEX_SAMPLES,rx_antenna_colors[arx]);
            }
        }
    }

    // Channel Impulse Response (still repeated format)
    if (chest_t != NULL) {
        ymax = 0;
        if (chest_t[0] !=NULL) {
            for (i=0; i<(frame_parms->ofdm_symbol_size>>3); i++) {
                chest_t_abs[0][i] = (float) (chest_t[0][4*i]*chest_t[0][4*i]+chest_t[0][4*i+1]*chest_t[0][4*i+1]);
                if (chest_t_abs[0][i] > ymax) 
                    ymax = chest_t_abs[0][i];
            }
            fl_set_xyplot_data(form->chest_t,time,chest_t_abs[0],(frame_parms->ofdm_symbol_size>>3),"","","");
        }
        for (arx=1;arx<nb_antennas_rx;arx++) {
            if (chest_t[arx] !=NULL) {
                for (i=0; i<(frame_parms->ofdm_symbol_size>>3); i++) {
                    chest_t_abs[arx][i] = (float) (chest_t[arx][4*i]*chest_t[arx][4*i]+chest_t[arx][4*i+1]*chest_t[arx][4*i+1]);
                    if (chest_t_abs[arx][i] > ymax) 
                        ymax = chest_t_abs[arx][i];
                }
                fl_add_xyplot_overlay(form->chest_t,arx,time,chest_t_abs[arx],(frame_parms->ofdm_symbol_size>>3),rx_antenna_colors[arx]);
                fl_set_xyplot_overlay_type(form->chest_t,arx,FL_DASHED_XYPLOT);
            }
        }
        // Avoid flickering effect
        //        fl_get_xyplot_ybounds(form->chest_t,&ymin,&ymax); // Does not always work...
        fl_set_xyplot_ybounds(form->chest_t,0,(double) ymax);
    }
    
    // Channel Frequency Response (includes 5 complex sample for filter)
    if (chest_f != NULL) {
        ind = 0;
        for (atx=0;atx<nb_antennas_tx;atx++) {
            for (arx=0;arx<nb_antennas_rx;arx++) {
                if (chest_f[(atx<<1)+arx] != NULL) {
                    for (k=0; k<nsymb_ce; k++) {                     
                        freq[ind] = (float)ind;
                        Re = (float)(chest_f[(atx<<1)+arx][(2*k)]);
                        Im = (float)(chest_f[(atx<<1)+arx][(2*k)+1]);
                        
                        chest_f_abs[ind] = (short)10*log10(1.0+((double)Re*Re + (double)Im*Im));
                        ind++;
                    }
                }
            }
        }
        
        // tx antenna 0
        fl_set_xyplot_xbounds(form->chest_f,0,nb_antennas_rx*nb_antennas_tx*nsymb_ce);
        //fl_set_xyplot_xtics(form->chest_f,nb_antennas_rx*nb_antennas_tx*frame_parms->symbols_per_tti,2);
        //        fl_set_xyplot_xtics(form->chest_f,nb_antennas_rx*nb_antennas_tx*2,2);
        fl_set_xyplot_xgrid(form->chest_f,FL_GRID_MAJOR);
        fl_set_xyplot_data(form->chest_f,freq,chest_f_abs,nsymb_ce,"","","");
        
        for (arx=1;arx<nb_antennas_rx;arx++) {
            fl_add_xyplot_overlay(form->chest_f,1,&freq[arx*nsymb_ce],&chest_f_abs[arx*nsymb_ce],nsymb_ce,rx_antenna_colors[arx]);
        }
        // other tx antennas
        if (nb_antennas_tx > 1) {
            if (nb_antennas_rx > 1) {
                for (atx=1;atx<nb_antennas_tx;atx++) {
                    for (arx=0;arx<nb_antennas_rx;arx++) {
                        fl_add_xyplot_overlay(form->chest_f,(atx<<1)+arx,&freq[((atx<<1)+arx)*nsymb_ce],&chest_f_abs[((atx<<1)+arx)*nsymb_ce],nsymb_ce,rx_antenna_colors[arx]);
                    }
                }
            } else { // 1 rx antenna
                atx=1; arx=0;
                fl_add_xyplot_overlay(form->chest_f,atx,&freq[atx*nsymb_ce],&chest_f_abs[atx*nsymb_ce],nsymb_ce,rx_antenna_colors[arx]);
            }
        }
    }

    // PBCH LLRs
    if (pbch_llr != NULL) {
        for (i=0; i<1920;i++) {
            llr_pbch[i] = (float) pbch_llr[i];
            bit_pbch[i] = (float) i;
        }
        
        fl_set_xyplot_data(form->pbch_llr,bit_pbch,llr_pbch,1920,"","","");
    }

    // PBCH I/Q of MF Output
    if (pbch_comp!=NULL) {
        for (i=0; i<72*2; i++) {
            I[i] = pbch_comp[2*i];
            Q[i] = pbch_comp[2*i+1];
        }
        
        fl_set_xyplot_data(form->pbch_comp,I,Q,72*2,"","","");
    }

    // PDCCH LLRs
    if (pdcch_llr != NULL) {
        for (i=0; i<12*frame_parms->N_RB_DL*2*num_pdcch_symbols;i++) {
            llr_pdcch[i] = (float) pdcch_llr[i];
            bit_pdcch[i] = (float) i;
        }

        fl_set_xyplot_xbounds(form->pdcch_llr,0,12*frame_parms->N_RB_DL*2*3);
        fl_set_xyplot_data(form->pdcch_llr,bit_pdcch,llr_pdcch,12*frame_parms->N_RB_DL*2*num_pdcch_symbols,"","","");
    }

    // PDCCH I/Q of MF Output
    if (pdcch_comp!=NULL) {
        for (i=0; i<12*frame_parms->N_RB_DL*num_pdcch_symbols; i++) {
            I[i] = pdcch_comp[2*i];
            Q[i] = pdcch_comp[2*i+1];
        }
        
        fl_set_xyplot_data(form->pdcch_comp,I,Q,12*frame_parms->N_RB_DL*num_pdcch_symbols,"","","");
    }

    // PDSCH LLRs
    if (pdsch_llr != NULL) {
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        for (i=0; i<coded_bits_per_codeword/4; i++) {
            llr[i] = (float) pdsch_llr[4*i];
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            bit[i] = (float) i;
        }

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        fl_set_xyplot_xbounds(form->pdsch_llr,0,coded_bits_per_codeword/4);        
        fl_set_xyplot_data(form->pdsch_llr,bit,llr,coded_bits_per_codeword/4,"","","");
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    }
    
    // PDSCH I/Q of MF Output
    if (pdsch_comp!=NULL) {
        ind=0;
        for (k=0; k<frame_parms->symbols_per_tti; k++) {
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            for (i=0; i<12*frame_parms->N_RB_DL/2; i++) {
                I[ind] = pdsch_comp[(2*frame_parms->N_RB_DL*12*k)+4*i];
                Q[ind] = pdsch_comp[(2*frame_parms->N_RB_DL*12*k)+4*i+1];
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                ind++;
            }
        }
        fl_set_xyplot_data(form->pdsch_comp,I,Q,ind,"","","");
    }
    
    // PDSCH Throughput
    memcpy((void*)tput_time_ue[UE_id],(void*)&tput_time_ue[UE_id][1],(TPUT_WINDOW_LENGTH-1)*sizeof(float));
    memcpy((void*)tput_ue[UE_id],(void*)&tput_ue[UE_id][1],(TPUT_WINDOW_LENGTH-1)*sizeof(float));
    
    tput_time_ue[UE_id][TPUT_WINDOW_LENGTH-1]  = (float) frame;
    tput_ue[UE_id][TPUT_WINDOW_LENGTH-1] = ((float) total_dlsch_bitrate)/1000.0;
    
    if (tput_ue[UE_id][TPUT_WINDOW_LENGTH-1] > tput_ue_max[UE_id]) {
        tput_ue_max[UE_id] = tput_ue[UE_id][TPUT_WINDOW_LENGTH-1];
    }
    
    fl_set_xyplot_data(form->pdsch_tput,tput_time_ue[UE_id],tput_ue[UE_id],TPUT_WINDOW_LENGTH,"","","");
    
    fl_set_xyplot_ybounds(form->pdsch_tput,0,tput_ue_max[UE_id]);

    fl_check_forms();

    free(I);
    free(Q);
    free(chest_f_abs);
    free(llr);
    free(bit);
    free(bit_pdcch);
    free(llr_pdcch);
    for (arx=0;arx<nb_antennas_rx;arx++) {
        free(chest_t_abs[arx]);
    }
    free(chest_t_abs);
}