mirror of https://github.com/PentHertz/srsLTE.git
163 lines
4.1 KiB
C
163 lines
4.1 KiB
C
/*
|
|
* Copyright 2013-2019 Software Radio Systems Limited
|
|
*
|
|
* This file is part of srsLTE.
|
|
*
|
|
* srsLTE is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as
|
|
* published by the Free Software Foundation, either version 3 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* srsLTE is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* A copy of the GNU Affero General Public License can be found in
|
|
* the LICENSE file in the top-level directory of this distribution
|
|
* and at http://www.gnu.org/licenses/.
|
|
*
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <strings.h>
|
|
#include <unistd.h>
|
|
|
|
#include "srslte/srslte.h"
|
|
|
|
srslte_cell_t cell = {
|
|
6, // nof_prb
|
|
1, // nof_ports
|
|
1000, // cell_id
|
|
SRSLTE_CP_NORM, // cyclic prefix
|
|
SRSLTE_PHICH_NORM, // PHICH length
|
|
SRSLTE_PHICH_R_1, // PHICH resources
|
|
SRSLTE_FDD,
|
|
|
|
};
|
|
|
|
void usage(char* prog)
|
|
{
|
|
printf("Usage: %s [cpv]\n", prog);
|
|
printf("\t-c cell id [Default %d]\n", cell.id);
|
|
printf("\t-p nof_ports [Default %d]\n", cell.nof_ports);
|
|
printf("\t-n nof_prb [Default %d]\n", cell.nof_prb);
|
|
printf("\t-v [set srslte_verbose to debug, default none]\n");
|
|
}
|
|
|
|
void parse_args(int argc, char** argv)
|
|
{
|
|
int opt;
|
|
while ((opt = getopt(argc, argv, "cpnv")) != -1) {
|
|
switch (opt) {
|
|
case 'p':
|
|
cell.nof_ports = (uint32_t)strtol(argv[optind], NULL, 10);
|
|
break;
|
|
case 'n':
|
|
cell.nof_prb = (uint32_t)strtol(argv[optind], NULL, 10);
|
|
break;
|
|
case 'c':
|
|
cell.id = (uint32_t)strtol(argv[optind], NULL, 10);
|
|
break;
|
|
case 'v':
|
|
srslte_verbose++;
|
|
break;
|
|
default:
|
|
usage(argv[0]);
|
|
exit(-1);
|
|
}
|
|
}
|
|
}
|
|
|
|
int main(int argc, char** argv)
|
|
{
|
|
srslte_chest_dl_res_t chest_res;
|
|
srslte_pcfich_t pcfich;
|
|
srslte_regs_t regs;
|
|
int i, j;
|
|
int nof_re;
|
|
cf_t* slot_symbols[SRSLTE_MAX_PORTS];
|
|
uint32_t cfi, nsf;
|
|
int cid, max_cid;
|
|
float corr_res;
|
|
|
|
parse_args(argc, argv);
|
|
|
|
nof_re = SRSLTE_CP_NORM_NSYMB * cell.nof_prb * SRSLTE_NRE;
|
|
|
|
/* init memory */
|
|
srslte_chest_dl_res_init(&chest_res, cell.nof_prb);
|
|
srslte_chest_dl_res_set_identity(&chest_res);
|
|
srslte_chest_dl_res_set_identity(&chest_res);
|
|
|
|
for (i = 0; i < SRSLTE_MAX_PORTS; i++) {
|
|
slot_symbols[i] = malloc(sizeof(cf_t) * nof_re);
|
|
if (!slot_symbols[i]) {
|
|
perror("malloc");
|
|
exit(-1);
|
|
}
|
|
}
|
|
|
|
if (cell.id == 1000) {
|
|
cid = 0;
|
|
max_cid = 503;
|
|
} else {
|
|
cid = cell.id;
|
|
max_cid = cell.id;
|
|
}
|
|
|
|
srslte_dl_sf_cfg_t dl_sf;
|
|
ZERO_OBJECT(dl_sf);
|
|
|
|
while (cid <= max_cid) {
|
|
cell.id = cid;
|
|
|
|
printf("Testing CellID=%d...\n", cid);
|
|
|
|
if (srslte_regs_init(®s, cell)) {
|
|
ERROR("Error initiating regs\n");
|
|
exit(-1);
|
|
}
|
|
|
|
if (srslte_pcfich_init(&pcfich, 1)) {
|
|
ERROR("Error creating PBCH object\n");
|
|
exit(-1);
|
|
}
|
|
if (srslte_pcfich_set_cell(&pcfich, ®s, cell)) {
|
|
ERROR("Error creating PBCH object\n");
|
|
exit(-1);
|
|
}
|
|
|
|
for (nsf = 0; nsf < 10; nsf++) {
|
|
dl_sf.tti = nsf;
|
|
|
|
for (cfi = 1; cfi < 4; cfi++) {
|
|
dl_sf.cfi = cfi;
|
|
srslte_pcfich_encode(&pcfich, &dl_sf, slot_symbols);
|
|
|
|
/* combine outputs */
|
|
for (i = 1; i < cell.nof_ports; i++) {
|
|
for (j = 0; j < nof_re; j++) {
|
|
slot_symbols[0][j] += slot_symbols[i][j];
|
|
}
|
|
}
|
|
if (srslte_pcfich_decode(&pcfich, &dl_sf, &chest_res, slot_symbols, &corr_res) < 0) {
|
|
exit(-1);
|
|
}
|
|
INFO("cfi_tx: %d, cfi_rx: %d, ns: %d, distance: %f\n", cfi, dl_sf.cfi, nsf, corr_res);
|
|
}
|
|
}
|
|
srslte_pcfich_free(&pcfich);
|
|
srslte_regs_free(®s);
|
|
cid++;
|
|
}
|
|
srslte_chest_dl_res_free(&chest_res);
|
|
for (i = 0; i < SRSLTE_MAX_PORTS; i++) {
|
|
free(slot_symbols[i]);
|
|
}
|
|
printf("OK\n");
|
|
exit(0);
|
|
}
|