2015-01-29 16:15:09 -08:00
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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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#include <sys/time.h>
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#include "liblte/phy/phy.h"
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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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0, // cell_id
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CPNORM, // cyclic prefix
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R_1_6, // PHICH resources
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PHICH_NORM // PHICH length
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};
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uint32_t cfi = 2;
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uint32_t tbs = 0;
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uint32_t subframe = 1;
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lte_mod_t modulation = LTE_QPSK;
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uint32_t rv_idx = 0;
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void usage(char *prog) {
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2015-02-13 01:02:10 -08:00
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printf("Usage: %s [csrnfvmt] -l TBS \n", prog);
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2015-01-29 16:15:09 -08:00
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printf("\t-m modulation (1: BPSK, 2: QPSK, 3: QAM16, 4: QAM64) [Default BPSK]\n");
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printf("\t-c cell id [Default %d]\n", cell.id);
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printf("\t-s subframe [Default %d]\n", subframe);
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printf("\t-r rv_idx [Default %d]\n", rv_idx);
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printf("\t-f cfi [Default %d]\n", cfi);
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printf("\t-n cell.nof_prb [Default %d]\n", cell.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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2015-02-13 01:02:10 -08:00
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while ((opt = getopt(argc, argv, "lcnfvmtsr")) != -1) {
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2015-01-29 16:15:09 -08:00
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switch(opt) {
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case 'm':
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switch(atoi(argv[optind])) {
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case 1:
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modulation = LTE_BPSK;
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break;
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case 2:
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modulation = LTE_QPSK;
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break;
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case 4:
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modulation = LTE_QAM16;
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break;
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case 6:
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modulation = LTE_QAM64;
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break;
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default:
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fprintf(stderr, "Invalid modulation %d. Possible values: "
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"(1: BPSK, 2: QPSK, 3: QAM16, 4: QAM64)\n", atoi(argv[optind]));
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break;
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}
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break;
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case 's':
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subframe = atoi(argv[optind]);
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break;
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case 'r':
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rv_idx = atoi(argv[optind]);
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break;
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case 'l':
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tbs = atoi(argv[optind]);
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break;
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case 'n':
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cell.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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pusch_t pusch;
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uint8_t *data = NULL;
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2015-02-13 01:02:10 -08:00
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cf_t *ce;
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2015-01-29 16:15:09 -08:00
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uint32_t nof_re;
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2015-02-13 01:02:10 -08:00
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cf_t *sf_symbols;
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2015-01-29 16:15:09 -08:00
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int ret = -1;
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struct timeval t[3];
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ra_mcs_t mcs;
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ra_prb_t prb_alloc;
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harq_t harq_process;
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2015-02-09 02:32:47 -08:00
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2015-01-29 16:15:09 -08:00
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parse_args(argc,argv);
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nof_re = 2 * CPNORM_NSYMB * cell.nof_prb * RE_X_RB;
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mcs.tbs = tbs;
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mcs.mod = modulation;
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prb_alloc.slot[0].nof_prb = 1;
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memcpy(&prb_alloc.slot[1], &prb_alloc.slot[0], sizeof(ra_prb_slot_t));
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/* init memory */
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2015-02-13 01:02:10 -08:00
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ce = malloc(sizeof(cf_t) * nof_re);
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if (!ce) {
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perror("malloc");
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goto quit;
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}
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sf_symbols = calloc(sizeof(cf_t) , nof_re);
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if (!sf_symbols) {
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perror("malloc");
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goto quit;
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2015-01-29 16:15:09 -08:00
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}
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data = malloc(sizeof(uint8_t) * mcs.tbs);
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if (!data) {
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perror("malloc");
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goto quit;
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}
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if (pusch_init(&pusch, cell)) {
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fprintf(stderr, "Error creating PDSCH object\n");
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goto quit;
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}
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pusch_set_rnti(&pusch, 1234);
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if (harq_init(&harq_process, cell)) {
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fprintf(stderr, "Error initiating HARQ process\n");
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goto quit;
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}
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2015-02-13 01:02:10 -08:00
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for (uint32_t i=0;i<mcs.tbs;i++) {
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2015-02-09 02:32:47 -08:00
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data[i] = 1;
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2015-01-29 16:15:09 -08:00
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}
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2015-02-09 02:32:47 -08:00
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printf("INPUT: ");
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2015-01-29 16:15:09 -08:00
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vec_fprint_b(stdout, data, mcs.tbs);
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2015-02-12 07:41:16 -08:00
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printf("Encoding rv_idx=%d\n",rv_idx);
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uint8_t tmp[20];
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2015-02-13 01:02:10 -08:00
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for (uint32_t i=0;i<20;i++) {
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2015-02-12 07:41:16 -08:00
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tmp[i] = 1;
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}
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uci_data_t uci_data;
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bzero(&uci_data, sizeof(uci_data_t));
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uci_data.beta_cqi = 2.0;
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uci_data.beta_ri = 2.0;
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uci_data.beta_ack = 2.0;
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uci_data.uci_cqi_len = 0;
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uci_data.uci_ri_len = 0;
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uci_data.uci_ack_len = 0;
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uci_data.uci_cqi = tmp;
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uci_data.uci_ri = 1;
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uci_data.uci_ack = 1;
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2015-02-13 02:13:56 -08:00
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if (harq_setup_ul(&harq_process, mcs, 0, subframe, &prb_alloc)) {
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fprintf(stderr, "Error configuring HARQ process\n");
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goto quit;
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}
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2015-01-29 16:15:09 -08:00
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2015-02-13 02:13:56 -08:00
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if (pusch_uci_encode(&pusch, &harq_process, data, uci_data, sf_symbols)) {
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2015-02-12 07:41:16 -08:00
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fprintf(stderr, "Error encoding TB\n");
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exit(-1);
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}
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if (rv_idx > 0) {
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2015-02-13 02:13:56 -08:00
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if (harq_setup_ul(&harq_process, mcs, rv_idx, subframe, &prb_alloc)) {
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fprintf(stderr, "Error configuring HARQ process\n");
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goto quit;
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}
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if (pusch_uci_encode(&pusch, &harq_process, data, uci_data, sf_symbols)) {
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2015-01-29 16:15:09 -08:00
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fprintf(stderr, "Error encoding TB\n");
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exit(-1);
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}
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2015-02-12 07:41:16 -08:00
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}
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2015-01-29 16:15:09 -08:00
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2015-02-12 07:41:16 -08:00
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gettimeofday(&t[1], NULL);
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//int r = pusch_decode(&pusch, slot_symbols[0], ce, 0, data, subframe, &harq_process, rv);
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int r = 0;
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gettimeofday(&t[2], NULL);
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get_time_interval(t);
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if (r) {
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printf("Error decoding\n");
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ret = -1;
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goto quit;
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} else {
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printf("DECODED OK in %d:%d (%.2f Mbps)\n", (int) t[0].tv_sec, (int) t[0].tv_usec, (float) mcs.tbs/t[0].tv_usec);
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}
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2015-01-29 16:15:09 -08:00
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ret = 0;
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quit:
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pusch_free(&pusch);
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harq_free(&harq_process);
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2015-02-13 01:02:10 -08:00
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if (ce) {
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free(ce);
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}
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if (sf_symbols) {
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free(sf_symbols);
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2015-01-29 16:15:09 -08:00
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}
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if (data) {
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free(data);
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}
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if (ret) {
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printf("Error\n");
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} else {
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printf("Ok\n");
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}
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exit(ret);
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}
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