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143 lines
3.0 KiB
C
143 lines
3.0 KiB
C
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2014 The libLTE Developers. See the
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* COPYRIGHT file at the top-level directory of this distribution.
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*
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* \section LICENSE
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*
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* This file is part of the libLTE library.
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*
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* libLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* libLTE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* A copy of the GNU Lesser General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <strings.h>
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#include <unistd.h>
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#include "lte.h"
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int cell_id = 1;
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int nof_prb = 6;
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int nof_ports = 1;
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void usage(char *prog) {
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printf("Usage: %s [cpv]\n", prog);
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printf("\t-c cell id [Default %d]\n", cell_id);
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printf("\t-p nof_ports [Default %d]\n", nof_ports);
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printf("\t-n nof_prb [Default %d]\n", nof_prb);
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printf("\t-v [set verbose to debug, default none]\n");
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}
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void parse_args(int argc, char **argv) {
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int opt;
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while ((opt = getopt(argc, argv, "cpnv")) != -1) {
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switch(opt) {
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case 'p':
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nof_ports = atoi(argv[optind]);
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break;
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case 'n':
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nof_prb = atoi(argv[optind]);
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break;
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case 'c':
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cell_id = atoi(argv[optind]);
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break;
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case 'v':
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verbose++;
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break;
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default:
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usage(argv[0]);
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exit(-1);
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}
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}
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}
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int main(int argc, char **argv) {
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pbch_t pbch;
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pbch_mib_t mib_tx, mib_rx;
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int i, j;
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cf_t *ce[MAX_PORTS_CTRL];
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int nof_re;
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cf_t *slot1_symbols[MAX_PORTS_CTRL];
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parse_args(argc,argv);
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nof_re = CPNORM_NSYMB * nof_prb * RE_X_RB;
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/* init memory */
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for (i=0;i<MAX_PORTS_CTRL;i++) {
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ce[i] = malloc(sizeof(cf_t) * nof_re);
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if (!ce[i]) {
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perror("malloc");
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exit(-1);
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}
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for (j=0;j<nof_re;j++) {
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ce[i][j] = 1;
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}
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slot1_symbols[i] = malloc(sizeof(cf_t) * nof_re);
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if (!slot1_symbols[i]) {
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perror("malloc");
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exit(-1);
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}
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}
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if (pbch_init(&pbch, nof_prb, cell_id, CPNORM)) {
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fprintf(stderr, "Error creating PBCH object\n");
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exit(-1);
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}
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mib_tx.nof_ports = nof_ports;
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mib_tx.nof_prb = 50;
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mib_tx.phich_length = PHICH_EXT;
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mib_tx.phich_resources = R_1_6;
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mib_tx.sfn = 124;
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pbch_encode(&pbch, &mib_tx, slot1_symbols, nof_ports);
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/* combine outputs */
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for (i=1;i<nof_ports;i++) {
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for (j=0;j<nof_re;j++) {
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slot1_symbols[0][j] += slot1_symbols[i][j];
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}
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}
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pbch_decode_reset(&pbch);
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if (1 != pbch_decode(&pbch, slot1_symbols[0], ce, 1, &mib_rx)) {
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printf("Error decoding\n");
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exit(-1);
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}
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pbch_free(&pbch);
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for (i=0;i<MAX_PORTS_CTRL;i++) {
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free(ce[i]);
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free(slot1_symbols[i]);
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}
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if (!memcmp(&mib_tx, &mib_rx, sizeof(pbch_mib_t))) {
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printf("OK\n");
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exit(0);
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} else {
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pbch_mib_fprint(stdout, &mib_rx);
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exit(-1);
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}
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}
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