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Modify DMRS configuration with command line in ULSIM

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- To modify DMRS use -U flag followed by 3 integers
- Example: ./nr_ulsim -U 2 1 0
- 1st Value is the list of arguments     -> e.g. 2
- 2nd Value is for TYPE{0=A,1=B}         -> e.g. 1
- 3rd Value is for ADD_POS{0,1,2,3}      -> e.g. 0
This commit is contained in:
Parminder Singh
2020-09-01 12:22:12 +02:00
parent 14096886e8
commit 8cf32ed2ad
1 changed files with 40 additions and 9 deletions
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openair1/SIMULATION/NR_PHY/ulsim.c
+40 -9
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@@ -150,7 +150,13 @@ int main(int argc, char **argv)
UE_nr_rxtx_proc_t UE_proc;
FILE *scg_fd=NULL;
int enable_ptrs = 0;
int ptrs_arg[2] = {-1,-1};
int modify_dmrs = 0;
/* L_PTRS = ptrs_arg[0], K_PTRS = ptrs_arg[1] */
int ptrs_arg[2] = {-1,-1};// Invalid values
/* DMRS TYPE = dmrs_arg[0], Add Pos = dmrs_arg[1] */
int dmrs_arg[2] = {-1,-1};// Invalid values
uint8_t dmrs_type = typeB; // Default Values
pusch_dmrs_AdditionalPosition_t add_pos = pusch_dmrs_pos0; // Default Values
int ibwps=24;
int ibwp_rboffset=41;
if ( load_configmodule(argc,argv,CONFIG_ENABLECMDLINEONLY) == 0 ) {
@@ -160,7 +166,7 @@ int main(int argc, char **argv)
//logInit();
randominit(0);
while ((c = getopt(argc, argv, "a:b:c:d:ef:g:h:i:j:kl:m:n:p:r:s:y:z:F:M:N:PR:S:T:L:")) != -1) {
while ((c = getopt(argc, argv, "a:b:c:d:ef:g:h:i:j:kl:m:n:p:r:s:y:z:F:M:N:PR:S:T:U:L:")) != -1) {
printf("handling optarg %c\n",c);
switch (c) {
@@ -349,13 +355,17 @@ int main(int argc, char **argv)
case 'T':
enable_ptrs=1;
int i = 0;
for(; optind < argc; optind++){
ptrs_arg[i] = atoi(argv[optind]);
i++;
for(i=0; i < atoi(optarg); i++){
ptrs_arg[i] = atoi(argv[optind++]);
}
break;
case 'U':
modify_dmrs = 1;
for(i=0; i < atoi(optarg); i++){
dmrs_arg[i] = atoi(argv[optind++]);
}
break;
default:
case 'h':
printf("%s -h(elp) -p(extended_prefix) -N cell_id -f output_filename -F input_filename -g channel_model -n n_frames -t Delayspread -s snr0 -S snr1 -x transmission_mode -y TXant -z RXant -i Intefrence0 -j Interference1 -A interpolation_file -C(alibration offset dB) -N CellId\n", argv[0]);
@@ -385,6 +395,7 @@ int main(int argc, char **argv)
printf("-S Ending SNR, runs from SNR0 to SNR1\n");
printf("-P Print ULSCH performances\n");
printf("-T Enable PTRS, arguments list L_PTRS{0,1,2} K_PTRS{2,4}, e.g. -T 2 0 2 \n");
printf("-U Change DMRS Config, arguments list DMRS TYPE{0=A,1=B} DMRS AddPos{0:3}, e.g. -U 2 0 2 \n");
exit(-1);
break;
@@ -568,8 +579,28 @@ int main(int argc, char **argv)
uint8_t mcs_table = 0;
uint16_t pdu_bit_map = PUSCH_PDU_BITMAP_PUSCH_DATA; // | PUSCH_PDU_BITMAP_PUSCH_PTRS;
/* validate parameters othwerwise default values are used */
/* -U flag can be used to set DMRS parameters*/
if(modify_dmrs)
{
if(dmrs_arg[0] == 0)
{
dmrs_type = typeA;
}
else if (dmrs_arg[0] == 1)
{
dmrs_type = typeB;
}
/* Additional DMRS positions */
if(dmrs_arg[1] >= 0 && dmrs_arg[1] <=3 )
{
add_pos = dmrs_arg[1];
}
printf("NOTE: DMRS config is modified with Type %d , Additional Position %d \n",dmrs_type, add_pos );
}
uint8_t length_dmrs = pusch_len1; // [hna] remove dmrs struct
uint16_t l_prime_mask = get_l_prime(nb_symb_sch, typeB, pusch_dmrs_pos0, length_dmrs); // [hna] remove dmrs struct
uint16_t l_prime_mask = get_l_prime(nb_symb_sch, dmrs_type, add_pos, length_dmrs); // [hna] remove dmrs struct
uint8_t ptrs_time_density = get_L_ptrs(ptrs_mcs1, ptrs_mcs2, ptrs_mcs3, Imcs, mcs_table);
uint8_t ptrs_freq_density = get_K_ptrs(n_rb0, n_rb1, nb_rb);
int ptrs_symbols = 0; // to calculate total PTRS RE's in a slot
@@ -589,7 +620,7 @@ int main(int argc, char **argv)
ptrs_freq_density = ptrs_arg[1];
}
pdu_bit_map |= PUSCH_PDU_BITMAP_PUSCH_PTRS;
printf("PTRS Enabled with L %d, K %d \n",ptrs_time_density, ptrs_freq_density );
printf("NOTE: PTRS Enabled with L %d, K %d \n", ptrs_time_density, ptrs_freq_density );
}
if(1<<ptrs_time_density >= nb_symb_sch)