static void put_mib(srslte_enb_dl_t* q)
{
uint8_t bch_payload[SRSLTE_BCH_PAYLOAD_LEN];
uint32_t sf_idx = q->dl_sf.tti % 10;
uint32_t sfn = q->dl_sf.tti / 10;
if (sf_idx == 0) {
srslte_pbch_mib_pack(&q->cell, sfn, bch_payload);
srslte_pbch_encode(&q->pbch, bch_payload, q->sf_symbols, sfn % 4);
}
}
int main(int argc, char **argv) {
srslte_pbch_t pbch;
uint8_t bch_payload_tx[SRSLTE_BCH_PAYLOAD_LEN], bch_payload_rx[SRSLTE_BCH_PAYLOAD_LEN];
int i, j;
cf_t *ce[SRSLTE_MAX_PORTS];
int nof_re;
cf_t *slot1_symbols[SRSLTE_MAX_PORTS];
uint32_t nof_rx_ports;
parse_args(argc,argv);
nof_re = SRSLTE_SLOT_LEN_RE(cell.nof_prb, SRSLTE_CP_NORM);
/* init memory */
for (i=0;i<cell.nof_ports;i++) {
ce[i] = malloc(sizeof(cf_t) * nof_re);
if (!ce[i]) {
perror("malloc");
exit(-1);
}
for (j=0;j<nof_re;j++) {
ce[i][j] = 1;
}
slot1_symbols[i] = malloc(sizeof(cf_t) * nof_re);
if (!slot1_symbols[i]) {
perror("malloc");
exit(-1);
}
}
if (srslte_pbch_init(&pbch, cell)) {
fprintf(stderr, "Error creating PBCH object\n");
exit(-1);
}
srand(time(NULL));
for (i=0;i<SRSLTE_BCH_PAYLOAD_LEN;i++) {
bch_payload_tx[i] = rand()%2;
}
srslte_pbch_encode(&pbch, bch_payload_tx, slot1_symbols, 0);
/* combine outputs */
for (i=1;i<cell.nof_ports;i++) {
for (j=0;j<nof_re;j++) {
slot1_symbols[0][j] += slot1_symbols[i][j];
}
}
srslte_pbch_decode_reset(&pbch);
if (1 != srslte_pbch_decode(&pbch, slot1_symbols[0], ce, 0, bch_payload_rx, &nof_rx_ports, NULL)) {
printf("Error decoding\n");
exit(-1);
}
srslte_pbch_free(&pbch);
for (i=0;i<cell.nof_ports;i++) {
free(ce[i]);
free(slot1_symbols[i]);
}
printf("Tx ports: %d - Rx ports: %d\n", cell.nof_ports, nof_rx_ports);
printf("Tx payload: ");
srslte_vec_fprint_hex(stdout, bch_payload_tx, SRSLTE_BCH_PAYLOAD_LEN);
printf("Rx payload: ");
srslte_vec_fprint_hex(stdout, bch_payload_rx, SRSLTE_BCH_PAYLOAD_LEN);
if (nof_rx_ports == cell.nof_ports && !memcmp(bch_payload_rx, bch_payload_tx, sizeof(uint8_t) * SRSLTE_BCH_PAYLOAD_LEN)) {
printf("OK\n");
exit(0);
} else {
printf("Error\n");
exit(-1);
}
}
