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Apply channel models TDLA, TDLB and TDLC in DLSIM according to TS 138.101

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This commit is contained in:
rmagueta
2023-09-04 18:53:22 +01:00
parent 28438ab5c4
commit f991dc9ebc
2 changed files with 25 additions and 45 deletions
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cmake_targets/autotests/test_case_list.xml
+2 -2
View File
@@ -200,8 +200,8 @@
-n100 -e16 -s11 -S13
-n100 -q1 -e26 -s30
-n100 -e0 -t95 -S-1.0 -i 2 1 0
-n10 -s20 -U 3 0 0 2 -gR -x1 -y4 -z4
-n10 -s20 -U 3 0 0 2 -gR -x2 -y4 -z4
-n10 -s20 -U 3 0 0 2 -gA -x1 -y4 -z4
-n10 -s20 -U 3 0 0 2 -gA -x2 -y4 -z4
-n10 -s20 -U 3 0 0 2 -x4 -y4 -z4</main_exec_args>
<tags>test1 test2 test3 test4 test5 test6 test7</tags>
<search_expr_true>PDSCH test OK</search_expr_true>
openair1/SIMULATION/NR_PHY/dlsim.c
+23 -43
View File
@@ -314,6 +314,7 @@ int main(int argc, char **argv)
//uint8_t frame_mod4,num_pdcch_symbols = 0;
SCM_t channel_model = AWGN; // AWGN Rayleigh1 Rayleigh1_anticorr;
double DS_TDL = .03;
int delay = 0;
//double pbch_sinr;
@@ -378,42 +379,25 @@ int main(int argc, char **argv)
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;
case 'R':
channel_model=Rayleigh1;
break;
default:
printf("Unsupported channel model!\n");
exit(-1);
switch ((char)*optarg) {
case 'A':
channel_model = TDL_A;
DS_TDL = 0.030; // 30 ns
printf("Channel model: TDLA30\n");
break;
case 'B':
channel_model = TDL_B;
DS_TDL = 0.100; // 100ns
printf("Channel model: TDLB100\n");
break;
case 'C':
channel_model = TDL_C;
DS_TDL = 0.300; // 300 ns
printf("Channel model: TDLC300\n");
break;
default:
printf("Unsupported channel model!\n");
exit(-1);
}
break;
@@ -578,7 +562,7 @@ int main(int argc, char **argv)
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,R] Use 3GPP SCM (A,B,C,D) or 36-101 (E-EPA,F-EVA,G-ETU) models or R for MIMO model (ignores delay spread and Ricean factor)\n");
printf("-g Channel model: [A] TDLA30, [B] TDLB100, [C] TDLC300, e.g. -g A\n");
printf("-o Introduce delay in terms of number of samples\n");
printf("-y Number of TX antennas used in gNB\n");
printf("-z Number of RX antennas used in UE\n");
@@ -779,7 +763,7 @@ int main(int argc, char **argv)
fs/1e6,//sampling frequency in MHz
0,
txbw,
30e-9,
DS_TDL,
0.0,
CORR_LEVEL_LOW,
0,
@@ -1115,11 +1099,7 @@ int main(int argc, char **argv)
}
// Apply MIMO Channel
if (channel_model == AWGN) {
multipath_channel(gNB2UE, s_re, s_im, r_re, r_im, slot_length, 0, (n_trials == 1) ? 1 : 0);
} else {
multipath_tv_channel(gNB2UE, s_re, s_im, r_re, r_im, slot_length, 0);
}
multipath_channel(gNB2UE, s_re, s_im, r_re, r_im, slot_length, 0, (n_trials == 1) ? 1 : 0);
add_noise(UE->common_vars.rxdata, (const double **) r_re, (const double **) r_im, sigma2, slot_length, slot_offset, ts, delay, pdu_bit_map, 0x1, frame_parms->nb_antennas_rx);
nr_ue_dcireq(&dcireq); //to be replaced with function pointer later