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OpenXG-RAN
Commit b21b87df authored by lukashov's avatar lukashov
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Fixing perfect channel estimation for TM4

parent e4485130
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Showing with 22 additions and 6 deletions
openair1/SIMULATION/LTE_PHY/dlsim.c
View file @ b21b87df
......@@ -2986,7 +2986,12 @@ n(tikz_fname,"w");
if (awgn_flag == 0) {
multipath_channel(eNB2UE[0],s_re,s_im,r_re,r_im,
2*frame_parms->samples_per_tti,hold_channel);
// printf("amc: ****************** eNB2UE[%d]->n_rx = %d,dd %d\n",round,eNB2UE[round]->nb_rx,eNB2UE[round]->channel_offset);
if (PHY_vars_UE->perfect_ce==1){
freq_channel(eNB2UE[round],PHY_vars_UE->lte_frame_parms.N_RB_DL,12*PHY_vars_UE->lte_frame_parms.N_RB_DL + 1);
// write_output("channel.m","ch",eNB2UE[round]->ch[0],eNB2UE[round]->channel_length,1,8);
// write_output("channelF.m","chF",eNB2UE[round]->chF[0],12*PHY_vars_UE->lte_frame_parms.N_RB_DL +1,1,8);
}
// printf("amc: ****************** eNB2UE[%d]->n_rx = %d,dd %d\n",round,eNB2UE[round]->nb_rx,eNB2UE[round]->channel_offset);
if(abstx==1 && num_rounds>1)
if(round==0 && hold_channel==0){
random_channel(eNB2UE[1],0);
......@@ -3138,11 +3143,7 @@ n(tikz_fname,"w");
if (PHY_vars_UE->perfect_ce==1) {
if (awgn_flag==0) {
// fill in perfect channel estimates
freq_channel(eNB2UE[round],PHY_vars_UE->lte_frame_parms.N_RB_DL,12*PHY_vars_UE->lte_frame_parms.N_RB_DL + 1);
//write_output("channel.m","ch",desc1->ch[0],desc1->channel_length,1,8);
//write_output("channelF.m","chF",desc1->chF[0],nb_samples,1,8);
//fill the channel estimates
for(k=0; k<NUMBER_OF_eNB_MAX; k++) {
for(aa=0; aa<frame_parms->nb_antennas_tx; aa++) {
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) {
......@@ -3159,9 +3160,24 @@ n(tikz_fname,"w");
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 (transmission_mode==4) {
((int16_t *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][0])[2*i+((l+(Ns%2)*pilot2)*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(short)(AMP);
((int16_t *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][0])[2*i+1+((l+(Ns%2)*pilot2)*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(short)(AMP);
((int16_t *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][1])[2*i+((l+(Ns%2)*pilot2)*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=0;//(short)(AMP);
((int16_t *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][1])[2*i+1+((l+(Ns%2)*pilot2)*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=0;//(short)(AMP);
((int16_t *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][2])[2*i+((l+(Ns%2)*pilot2)*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=0;//(short)(AMP);
((int16_t *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][2])[2*i+1+((l+(Ns%2)*pilot2)*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=0;//(short)(AMP);
((int16_t *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][3])[2*i+((l+(Ns%2)*pilot2)*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(short)(AMP);
((int16_t *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][3])[2*i+1+((l+(Ns%2)*pilot2)*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(short)(AMP);
}
else{
((int16_t *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][(aa<<1)+aarx])[2*i+((l+(Ns%2)*pilot2)*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(short)(AMP);
((int16_t *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][(aa<<1)+aarx])[2*i+1+((l+(Ns%2)*pilot2)*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=0/2;
}
}
}
}
}
......
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