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srsLTE
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Added MCS parameter to pusch_test2

This commit is contained in:
ismagom 2015-07-05 22:30:47 +02:00
parent aed414ad9a
commit baa7e55ffe
2 changed files with 27 additions and 47 deletions
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2
srslte/lib/phch/src/ra.c
View File

@ -110,7 +110,7 @@ uint32_t ra_re_x_prb(uint32_t subframe, uint32_t slot, uint32_t prb_idx, uint32_
int srslte_ul_dci_to_grant_prb_allocation(srslte_ra_ul_dci_t *dci, srslte_ra_ul_grant_t *grant, uint32_t n_rb_ho, uint32_t nof_prb)
{
bzero(grant, sizeof(srslte_ra_ul_grant_t));
bzero(grant, sizeof(srslte_ra_ul_grant_t));
grant->L_prb = dci->type2_alloc.L_crb;
uint32_t n_prb_1 = dci->type2_alloc.RB_start;
uint32_t n_rb_pusch = 0;

72
srslte/lib/phch/test/pusch_test.c
View File

@ -52,10 +52,11 @@ uint32_t L_prb = 2;
uint32_t n_prb = 0;
int freq_hop = -1;
int riv = -1;
uint32_t mcs_idx = 0;
void usage(char *prog) {
printf("Usage: %s [csrnfvmtLNF] -l TBS \n", prog);
printf("\t-m modulation (1: BPSK, 2: QPSK, 3: QAM16, 4: QAM64) [Default BPSK]\n");
printf("Usage: %s [csrnfvmtLNF] -m MCS \n", prog);
printf("\t-m MCS index [Default %d]\n", mcs_idx);
printf("\t-c cell id [Default %d]\n", cell.id);
printf("\t-s subframe [Default %d]\n", subframe);
printf("\t-L L_prb [Default %d]\n", L_prb);
@ -70,27 +71,10 @@ void usage(char *prog) {
void parse_args(int argc, char **argv) {
int opt;
while ((opt = getopt(argc, argv, "lcnfvmtsrLNFR")) != -1) {
while ((opt = getopt(argc, argv, "cnfvmtsrLNFR")) != -1) {
switch(opt) {
case 'm':
switch(atoi(argv[optind])) {
case 1:
modulation = SRSLTE_MOD_BPSK;
break;
case 2:
modulation = SRSLTE_MOD_QPSK;
break;
case 4:
modulation = SRSLTE_MOD_16QAM;
break;
case 6:
modulation = SRSLTE_MOD_64QAM;
break;
default:
fprintf(stderr, "Invalid modulation %d. Possible values: "
"(1: BPSK, 2: QPSK, 3: QAM16, 4: QAM64)\n", atoi(argv[optind]));
break;
}
mcs_idx = atoi(argv[optind]);
break;
case 's':
subframe = atoi(argv[optind]);
@ -110,9 +94,6 @@ void parse_args(int argc, char **argv) {
case 'r':
rv_idx = atoi(argv[optind]);
break;
case 'l':
tbs = atoi(argv[optind]);
break;
case 'n':
cell.nof_prb = atoi(argv[optind]);
break;
@ -150,7 +131,9 @@ int main(int argc, char **argv) {
} else {
srslte_ra_type2_from_riv((uint32_t) riv, &dci.type2_alloc.L_crb, &dci.type2_alloc.RB_start, cell.nof_prb, cell.nof_prb);
}
dci.mcs_idx = mcs_idx;
srslte_dci_msg_t dci_msg;
srslte_dci_msg_pack_pusch(&dci, &dci_msg, cell.nof_prb);
srslte_pusch_hopping_cfg_t ul_hopping;
ul_hopping.n_sb = 1;
@ -164,22 +147,13 @@ int main(int argc, char **argv) {
}
/* Configure PUSCH */
srslte_ul_dci_to_grant_prb_allocation(&dci, &cfg.grant, 0, cell.nof_prb);
cfg.grant.mcs.tbs = tbs;
cfg.grant.mcs.mod = modulation;
cfg.grant.Qm = srslte_mod_bits_x_symbol(modulation);
if (srslte_pusch_cfg(&pusch, &cfg, NULL, &ul_hopping, NULL, subframe, 0, 0)) {
if (srslte_pusch_cfg(&pusch, &cfg, &dci_msg, &ul_hopping, NULL, subframe, 0, 0)) {
fprintf(stderr, "Error configuring PDSCH\n");
exit(-1);
}
srslte_pusch_set_rnti(&pusch, 1234);
if (srslte_softbuffer_tx_init(&softbuffer, cell)) {
fprintf(stderr, "Error initiating soft buffer\n");
goto quit;
}
printf("Encoding rv_idx=%d\n",rv_idx);
cfg.rv = 0;
cfg.sf_idx = subframe;
@ -209,6 +183,12 @@ int main(int argc, char **argv) {
goto quit;
}
cf_t *scfdma = srslte_vec_malloc(sizeof(cf_t) * SRSLTE_SF_LEN_PRB(cell.nof_prb));
bzero(scfdma, sizeof(cf_t) * SRSLTE_SF_LEN_PRB(cell.nof_prb));
srslte_ofdm_t fft;
srslte_ofdm_tx_init(&fft, SRSLTE_CP_NORM, cell.nof_prb);
srslte_ofdm_set_freq_shift(&fft, 0.5);
data = malloc(sizeof(uint8_t) * cfg.grant.mcs.tbs);
if (!data) {
perror("malloc");
@ -219,6 +199,11 @@ int main(int argc, char **argv) {
data[i] = 1;
}
gettimeofday(&t[1], NULL);
if (srslte_softbuffer_tx_init(&softbuffer, cell)) {
fprintf(stderr, "Error initiating soft buffer\n");
goto quit;
}
if (srslte_pusch_uci_encode(&pusch, &cfg, &softbuffer, data, uci_data, sf_symbols)) {
fprintf(stderr, "Error encoding TB\n");
exit(-1);
@ -232,24 +217,19 @@ int main(int argc, char **argv) {
}
}
cf_t *scfdma = srslte_vec_malloc(sizeof(cf_t) * SRSLTE_SF_LEN_PRB(cell.nof_prb));
bzero(scfdma, sizeof(cf_t) * SRSLTE_SF_LEN_PRB(cell.nof_prb));
srslte_ofdm_t fft;
srslte_ofdm_tx_init(&fft, SRSLTE_CP_NORM, cell.nof_prb);
srslte_ofdm_set_freq_shift(&fft, 0.5);
srslte_ofdm_tx_sf(&fft, sf_symbols, scfdma);
gettimeofday(&t[1], NULL);
//int r = srslte_pusch_decode(&pusch, slot_symbols[0], ce, 0, data, subframe, &harq_process, rv);
int r = 0;
gettimeofday(&t[2], NULL);
get_time_interval(t);
//int r = srslte_pusch_decode(&pusch, slot_symbols[0], ce, 0, data, subframe, &harq_process, rv);
int r = 0;
if (r) {
printf("Error decoding\n");
ret = -1;
goto quit;
} else {
printf("DECODED OK in %d:%d (%.2f Mbps)\n", (int) t[0].tv_sec, (int) t[0].tv_usec, (float) cfg.grant.mcs.tbs/t[0].tv_usec);
printf("ENCODED OK in %d:%d (%.2f Mbps)\n", (int) t[0].tv_sec, (int) t[0].tv_usec,
(float) cfg.grant.mcs.tbs/t[0].tv_usec);
}
ret = 0;