2014-03-27 09:31:25 -07:00
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/**
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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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2014-06-17 06:20:00 -07:00
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#include "liblte/phy/phy.h"
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2014-03-27 09:31:25 -07:00
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2014-06-29 10:51:25 -07:00
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lte_cell_t cell = {
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6, // nof_prb
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1, // nof_ports
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1000, // cell_id
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CPNORM // cyclic prefix
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};
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2014-03-27 09:31:25 -07:00
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phich_resources_t phich_res = R_1;
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phich_length_t phich_length = PHICH_NORM;
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void usage(char *prog) {
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2014-06-17 02:11:41 -07:00
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printf("Usage: %s [cpvgel]\n", prog);
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2014-06-29 10:51:25 -07:00
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printf("\t-c cell id [Default %d]\n", cell.id);
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printf("\t-p cell.nof_ports [Default %d]\n", cell.nof_ports);
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printf("\t-n cell.nof_prb [Default %d]\n", cell.nof_prb);
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2014-06-17 02:11:41 -07:00
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printf("\t-g phich ng factor: 1/6, 1/2, 1, 2 [Default 1]\n");
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printf("\t-e phich extended length [Default normal]\n");
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printf("\t-l extended cyclic prefix [Default normal]\n");
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printf("\t-v [set verbose to debug, default none]\n");
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2014-03-27 09:31:25 -07:00
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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, "cpnvgel")) != -1) {
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switch(opt) {
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case 'p':
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2014-06-29 10:51:25 -07:00
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cell.nof_ports = atoi(argv[optind]);
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2014-06-17 02:11:41 -07:00
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break;
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case 'n':
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2014-06-29 10:51:25 -07:00
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cell.nof_prb = atoi(argv[optind]);
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2014-06-17 02:11:41 -07:00
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break;
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case 'c':
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2014-06-29 10:51:25 -07:00
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cell.id = atoi(argv[optind]);
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2014-06-17 02:11:41 -07:00
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break;
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case 'g':
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if (!strcmp(argv[optind], "1/6")) {
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phich_res = R_1_6;
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} else if (!strcmp(argv[optind], "1/2")) {
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phich_res = R_1_2;
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} else if (!strcmp(argv[optind], "1")) {
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phich_res = R_1;
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} else if (!strcmp(argv[optind], "2")) {
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phich_res = R_2;
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} else {
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fprintf(stderr, "Invalid phich ng factor %s. Setting to default.\n", argv[optind]);
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}
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break;
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case 'e':
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phich_length = PHICH_EXT;
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break;
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case 'l':
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2014-06-29 10:51:25 -07:00
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cell.cp = CPEXT;
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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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2014-03-27 09:31:25 -07:00
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}
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int main(int argc, char **argv) {
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phich_t phich;
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regs_t regs;
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int i, j;
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2014-06-27 09:36:25 -07:00
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cf_t *ce[MAX_PORTS];
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int nof_re;
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2014-06-27 09:36:25 -07:00
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cf_t *slot_symbols[MAX_PORTS];
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2014-06-17 02:11:41 -07:00
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char ack[50][PHICH_NORM_NSEQUENCES], ack_rx;
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2014-06-29 10:51:25 -07:00
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uint8_t nsf, distance;
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2014-06-17 02:11:41 -07:00
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int cid, max_cid;
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2014-06-29 10:51:25 -07:00
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uint8_t ngroup, nseq, max_nseq;
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2014-06-17 02:11:41 -07:00
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parse_args(argc,argv);
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2014-06-29 10:51:25 -07:00
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max_nseq = CP_ISNORM(cell.cp)?PHICH_NORM_NSEQUENCES:PHICH_EXT_NSEQUENCES;
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2014-06-17 02:11:41 -07:00
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2014-06-29 10:51:25 -07:00
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nof_re = CPNORM_NSYMB * cell.nof_prb * RE_X_RB;
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2014-06-17 02:11:41 -07:00
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/* init memory */
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2014-06-27 09:36:25 -07:00
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for (i=0;i<MAX_PORTS;i++) {
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2014-06-17 02:11:41 -07:00
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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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slot_symbols[i] = malloc(sizeof(cf_t) * nof_re);
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if (!slot_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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2014-06-29 10:51:25 -07:00
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if (cell.id == 1000) {
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cid = 0;
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max_cid = 503;
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} else {
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2014-06-29 10:51:25 -07:00
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cid = cell.id;
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max_cid = cell.id;
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2014-06-17 02:11:41 -07:00
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}
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while(cid <= max_cid) {
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2014-06-29 10:51:25 -07:00
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cell.id = cid;
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2014-06-17 02:11:41 -07:00
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printf("Testing CellID=%d...\n", cid);
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2014-06-29 10:51:25 -07:00
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if (regs_init(®s, phich_res, phich_length, cell)) {
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2014-06-17 02:11:41 -07:00
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fprintf(stderr, "Error initiating regs\n");
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exit(-1);
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}
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2014-06-29 10:51:25 -07:00
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if (phich_init(&phich, ®s, cell)) {
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2014-06-17 02:11:41 -07:00
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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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for (nsf=0;nsf<10;nsf++) {
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phich_reset(&phich, slot_symbols);
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/* Transmit all PHICH groups and sequence numbers */
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for (ngroup=0;ngroup<phich_ngroups(&phich);ngroup++) {
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for (nseq=0;nseq<max_nseq;nseq++) {
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ack[ngroup][nseq] = rand()%2;
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phich_encode(&phich, ack[ngroup][nseq], ngroup, nseq, nsf, slot_symbols);
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}
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}
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/* combine outputs */
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2014-06-29 10:51:25 -07:00
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for (i=1;i<cell.nof_ports;i++) {
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2014-06-17 02:11:41 -07:00
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for (j=0;j<nof_re;j++) {
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slot_symbols[0][j] += slot_symbols[i][j];
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}
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}
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/* Receive all PHICH groups and sequence numbers */
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for (ngroup=0;ngroup<phich_ngroups(&phich);ngroup++) {
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for (nseq=0;nseq<max_nseq;nseq++) {
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if (phich_decode(&phich, slot_symbols[0], ce, ngroup, nseq, nsf, &ack_rx, &distance)<0) {
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printf("Error decoding ACK\n");
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exit(-1);
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}
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INFO("%d/%d, ack_tx: %d, ack_rx: %d, ns: %d, distance: %d\n",
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ngroup, nseq, ack[ngroup][nseq], ack_rx, nsf, distance);
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if (ack[ngroup][nseq] != ack_rx) {
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printf("Invalid received ACK: %d!=%d\n", ack[ngroup][nseq], ack_rx);
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exit(-1);
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}
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if (distance) {
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printf("Error\n");
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exit(-1);
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}
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}
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}
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}
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phich_free(&phich);
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regs_free(®s);
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cid++;
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}
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2014-06-27 09:36:25 -07:00
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for (i=0;i<MAX_PORTS;i++) {
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2014-06-17 02:11:41 -07:00
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free(ce[i]);
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free(slot_symbols[i]);
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}
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printf("OK\n");
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exit(0);
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2014-03-27 09:31:25 -07:00
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}
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