mirror of https://github.com/pvnis/srsRAN_4G.git
Merged with #51
ismagom
10 years ago
parent
36e6c153d9
commit
cc364f7dfa
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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 <math.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include <assert.h>
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#include <signal.h>
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#include "liblte/phy/phy.h"
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#include "liblte/cuhd/cuhd.h"
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#include "cell_search_utils.h"
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/**********************************************************************
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* Program arguments processing
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***********************************************************************/
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typedef struct {
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int nof_subframes;
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bool disable_plots;
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int force_N_id_2;
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char *uhd_args;
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float uhd_freq;
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float uhd_gain;
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}prog_args_t;
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void args_default(prog_args_t *args) {
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args->nof_subframes = -1;
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args->force_N_id_2 = -1; // Pick the best
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args->uhd_args = "";
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args->uhd_freq = -1.0;
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args->uhd_gain = 60.0;
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}
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void usage(prog_args_t *args, char *prog) {
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printf("Usage: %s [aglnv] -f rx_frequency (in Hz)\n", prog);
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printf("\t-a UHD args [Default %s]\n", args->uhd_args);
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printf("\t-g UHD RX gain [Default %.2f dB]\n", args->uhd_gain);
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printf("\t-l Force N_id_2 [Default best]\n");
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printf("\t-n nof_subframes [Default %d]\n", args->nof_subframes);
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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(prog_args_t *args, int argc, char **argv) {
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int opt;
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args_default(args);
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while ((opt = getopt(argc, argv, "aglnvf")) != -1) {
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switch (opt) {
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case 'a':
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args->uhd_args = argv[optind];
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break;
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case 'g':
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args->uhd_gain = atof(argv[optind]);
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break;
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case 'f':
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args->uhd_freq = atof(argv[optind]);
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break;
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case 'n':
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args->nof_subframes = atoi(argv[optind]);
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break;
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case 'l':
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args->force_N_id_2 = 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(args, argv[0]);
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exit(-1);
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}
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}
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if (args->uhd_freq < 0) {
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usage(args, argv[0]);
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exit(-1);
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}
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}
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/**********************************************************************/
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/* TODO: Do something with the output data */
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char data[10000];
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int cuhd_recv_wrapper(void *h, void *data, uint32_t nsamples) {
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DEBUG(" ---- Receive %d samples ---- \n", nsamples);
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return cuhd_recv(h, data, nsamples, 1);
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}
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int main(int argc, char **argv) {
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int ret;
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cf_t *sf_buffer;
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prog_args_t prog_args;
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lte_cell_t cell;
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int64_t sf_cnt;
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pbch_mib_t mib;
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ue_sync_t ue_sync;
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void *uhd;
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parse_args(&prog_args, argc, argv);
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printf("Opening UHD device...\n");
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if (cuhd_open(prog_args.uhd_args, &uhd)) {
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fprintf(stderr, "Error opening uhd\n");
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exit(-1);
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}
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/* Set receiver gain */
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cuhd_set_rx_gain(uhd, prog_args.uhd_gain);
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/* set receiver frequency */
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cuhd_set_rx_freq(uhd, (double) prog_args.uhd_freq);
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cuhd_rx_wait_lo_locked(uhd);
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printf("Tunning receiver to %.3f MHz\n", (double ) prog_args.uhd_freq/1000000);
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if (cell_search(uhd, prog_args.force_N_id_2, &cell, &mib)) {
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fprintf(stderr, "Cell not found\n");
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exit(-1);
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}
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cuhd_start_rx_stream(uhd);
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if (ue_sync_init(&ue_sync, cell, cuhd_recv_wrapper, uhd)) {
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fprintf(stderr, "Error initiating ue_sync\n");
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exit(-1);
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}
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/* Initialize subframe counter */
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sf_cnt = 0;
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lte_fft_t fft;
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chest_t chest;
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if (lte_fft_init(&fft, cell.cp, cell.nof_prb)) {
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fprintf(stderr, "Error initiating FFT\n");
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return -1;
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}
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if (chest_init_LTEDL(&chest, cell)) {
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fprintf(stderr, "Error initiating channel estimator\n");
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return -1;
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}
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int sf_re = SF_LEN_RE(cell.nof_prb, cell.cp);
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cf_t *sf_symbols = vec_malloc(sf_re * sizeof(cf_t));
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unsigned int nframes=0;
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/* Main loop */
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while (sf_cnt < prog_args.nof_subframes || prog_args.nof_subframes == -1) {
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ret = ue_sync_get_buffer(&ue_sync, &sf_buffer);
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if (ret < 0) {
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fprintf(stderr, "Error calling ue_sync_work()\n");
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}
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float rssi=0, rsrp=0, rsrq=0;
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/* iodev_receive returns 1 if successfully read 1 aligned subframe */
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if (ret == 1) {
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/* Run FFT for all subframe data */
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lte_fft_run_sf(&fft, sf_buffer, sf_symbols);
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chest_measure_sf(&chest, sf_symbols, ue_sync_get_sfidx(&ue_sync));
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rssi = VEC_CMA(chest_rssi_sf(&chest, sf_symbols),rssi,nframes);
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rsrq = VEC_CMA(chest_rsrq_sf(&chest, sf_symbols, ue_sync_get_sfidx(&ue_sync)),rsrq,nframes);
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rsrp = VEC_CMA(chest_rsrp_sf(&chest, ue_sync_get_sfidx(&ue_sync)),rsrp,nframes);
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nframes++;
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// Plot and Printf
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if ((nframes%10) == 0) {
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printf("CFO: %+6.4f KHz, SFO: %+6.4f Khz, RSSI: %+5.2f dBm, RSRP: %+4.2f dBm, RSRQ: %4.2f dB\r",
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ue_sync_get_cfo(&ue_sync)/1000, ue_sync_get_sfo(&ue_sync)/1000,
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10*log10(rssi*1000/4/cell.nof_prb/12/2)-prog_args.uhd_gain,
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10*log10(rsrp*1000)-prog_args.uhd_gain,
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10*log10(rsrq));
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}
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} else if (ret == 0) {
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printf("Finding PSS... Peak: %8.1f, FrameCnt: %d, State: %d\r",
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sync_get_peak_value(&ue_sync.sfind),
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ue_sync.frame_total_cnt, ue_sync.state);
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}
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sf_cnt++;
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} // Main loop
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ue_sync_free(&ue_sync);
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cuhd_close(uhd);
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printf("\nBye\n");
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exit(0);
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}
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@ -0,0 +1,127 @@
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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 <stdint.h>
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// Phi values for M_sc=12 Table 5.5.1.2-1 in 36.211
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int phi_M_sc_12[30][12] = {{-1, 1, 3,-3, 3, 3, 1, 1, 3, 1,-3, 3},
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{ 1, 1, 3, 3, 3,-1, 1,-3,-3, 1,-3, 3},
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{ 1, 1,-3,-3,-3,-1,-3,-3, 1,-3, 1,-1},
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{-1, 1, 1, 1, 1,-1,-3,-3, 1,-3, 3,-1},
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{-1, 3, 1,-1, 1,-1,-3,-1, 1,-1, 1, 3},
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{ 1,-3, 3,-1,-1, 1, 1,-1,-1, 3,-3, 1},
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{-1, 3,-3,-3,-3, 3, 1,-1, 3, 3,-3, 1},
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{-3,-1,-1,-1, 1,-3, 3,-1, 1,-3, 3, 1},
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{ 1,-3, 3, 1,-1,-1,-1, 1, 1, 3,-1, 1},
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{ 1,-3,-1, 3, 3,-1,-3, 1, 1, 1, 1, 1},
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{-1, 3,-1, 1, 1,-3,-3,-1,-3,-3, 3,-1},
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{ 3, 1,-1,-1, 3, 3,-3, 1, 3, 1, 3, 3},
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{ 1,-3, 1, 1,-3, 1, 1, 1,-3,-3,-3, 1},
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{ 3, 3,-3, 3,-3, 1, 1, 3,-1,-3, 3, 3},
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{-3, 1,-1,-3,-1, 3, 1, 3, 3, 3,-1, 1},
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{ 3,-1, 1,-3,-1,-1, 1, 1, 3, 1,-1,-3},
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{ 1, 3, 1,-1, 1, 3, 3, 3,-1,-1, 3,-1},
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{-3, 1, 1, 3,-3, 3,-3,-3, 3, 1, 3,-1},
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{-3, 3, 1, 1,-3, 1,-3,-3,-1,-1, 1,-3},
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{-1, 3, 1, 3, 1,-1,-1, 3,-3,-1,-3,-1},
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{-1,-3, 1, 1, 1, 1, 3, 1,-1, 1,-3,-1},
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{-1, 3,-1, 1,-3,-3,-3,-3,-3, 1,-1,-3},
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{ 1, 1,-3,-3,-3,-3,-1, 3,-3, 1,-3, 3},
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{ 1, 1,-1,-3,-1,-3, 1,-1, 1, 3,-1, 1},
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{ 1, 1, 3, 1, 3, 3,-1, 1,-1,-3,-3, 1},
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{ 1,-3, 3, 3, 1, 3, 3, 1,-3,-1,-1, 3},
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{ 1, 3,-3,-3, 3,-3, 1,-1,-1, 3,-1,-3},
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{-3,-1,-3,-1,-3, 3, 1,-1, 1, 3,-3,-3},
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{-1, 3,-3, 3,-1, 3, 3,-3, 3, 3,-1,-1},
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{ 3,-3,-3,-1,-1,-3,-1, 3,-3, 3, 1,-1}};
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// Phi values for M_sc=24 Table 5.5.1.2-2 in 36.211
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int phi_M_sc_24[30][24] = {{-1, 3, 1,-3, 3,-1, 1, 3,-3, 3, 1, 3,-3, 3, 1, 1,-1, 1, 3,-3, 3,-3,-1,-3},
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{-3, 3,-3,-3,-3, 1,-3,-3, 3,-1, 1, 1, 1, 3, 1,-1, 3,-3,-3, 1, 3, 1, 1,-3},
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{ 3,-1, 3, 3, 1, 1,-3, 3, 3, 3, 3, 1,-1, 3,-1, 1, 1,-1,-3,-1,-1, 1, 3, 3},
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{-1,-3, 1, 1, 3,-3, 1, 1,-3,-1,-1, 1, 3, 1, 3, 1,-1, 3, 1, 1,-3,-1,-3,-1},
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{-1,-1,-1,-3,-3,-1, 1, 1, 3, 3,-1, 3,-1, 1,-1,-3, 1,-1,-3,-3, 1,-3,-1,-1},
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{-3, 1, 1, 3,-1, 1, 3, 1,-3, 1,-3, 1, 1,-1,-1, 3,-1,-3, 3,-3,-3,-3, 1, 1},
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{ 1, 1,-1,-1, 3,-3,-3, 3,-3, 1,-1,-1, 1,-1, 1, 1,-1,-3,-1, 1,-1, 3,-1,-3},
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{-3, 3, 3,-1,-1,-3,-1, 3, 1, 3, 1, 3, 1, 1,-1, 3, 1,-1, 1, 3,-3,-1,-1, 1},
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{-3, 1, 3,-3, 1,-1,-3, 3,-3, 3,-1,-1,-1,-1, 1,-3,-3,-3, 1,-3,-3,-3, 1,-3},
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{ 1, 1,-3, 3, 3,-1,-3,-1, 3,-3, 3, 3, 3,-1, 1, 1,-3, 1,-1, 1, 1,-3, 1, 1},
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{-1, 1,-3,-3, 3,-1, 3,-1,-1,-3,-3,-3,-1,-3,-3, 1,-1, 1, 3, 3,-1, 1,-1, 3},
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{ 1, 3, 3,-3,-3, 1, 3, 1,-1,-3,-3,-3, 3, 3,-3, 3, 3,-1,-3, 3,-1, 1,-3, 1},
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{ 1, 3, 3, 1, 1, 1,-1,-1, 1,-3, 3,-1, 1, 1,-3, 3, 3,-1,-3, 3,-3,-1,-3,-1},
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{ 3,-1,-1,-1,-1,-3,-1, 3, 3, 1,-1, 1, 3, 3, 3,-1, 1, 1,-3, 1, 3,-1,-3, 3},
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{-3,-3, 3, 1, 3, 1,-3, 3, 1, 3, 1, 1, 3, 3,-1,-1,-3, 1,-3,-1, 3, 1, 1, 3},
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{-1,-1, 1,-3, 1, 3,-3, 1,-1,-3,-1, 3, 1, 3, 1,-1,-3,-3,-1,-1,-3,-3,-3,-1},
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{-1,-3, 3,-1,-1,-1,-1, 1, 1,-3, 3, 1, 3, 3, 1,-1, 1,-3, 1,-3, 1, 1,-3,-1},
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{ 1, 3,-1, 3, 3,-1,-3, 1,-1,-3, 3, 3, 3,-1, 1, 1, 3,-1,-3,-1, 3,-1,-1,-1},
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{ 1, 1, 1, 1, 1,-1, 3,-1,-3, 1, 1, 3,-3, 1,-3,-1, 1, 1,-3,-3, 3, 1, 1,-3},
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{ 1, 3, 3, 1,-1,-3, 3,-1, 3, 3, 3,-3, 1,-1, 1,-1,-3,-1, 1, 3,-1, 3,-3,-3},
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{-1,-3, 3,-3,-3,-3,-1,-1,-3,-1,-3, 3, 1, 3,-3,-1, 3,-1, 1,-1, 3,-3, 1,-1},
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{-3,-3, 1, 1,-1, 1,-1, 1,-1, 3, 1,-3,-1, 1,-1, 1,-1,-1, 3, 3,-3,-1, 1,-3},
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{-3,-1,-3, 3, 1,-1,-3,-1,-3,-3, 3,-3, 3,-3,-1, 1, 3, 1,-3, 1, 3, 3,-1,-3},
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{-1,-1,-1,-1, 3, 3, 3, 1, 3, 3,-3, 1, 3,-1, 3,-1, 3, 3,-3, 3, 1,-1, 3, 3},
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||||||
|
{ 1,-1, 3, 3,-1,-3, 3,-3,-1,-1, 3,-1, 3,-1,-1, 1, 1, 1, 1,-1,-1,-3,-1, 3},
|
||||||
|
{ 1,-1, 1,-1, 3,-1, 3, 1, 1,-1,-1,-3, 1, 1,-3, 1, 3,-3, 1, 1,-3,-3,-1,-1},
|
||||||
|
{-3,-1, 1, 3, 1, 1,-3,-1,-1,-3, 3,-3, 3, 1,-3, 3,-3, 1,-1, 1,-3, 1, 1, 1},
|
||||||
|
{-1,-3, 3, 3, 1, 1, 3,-1,-3,-1,-1,-1, 3, 1,-3,-3,-1, 3,-3,-1,-3,-1,-3,-1},
|
||||||
|
{-1,-3,-1,-1, 1,-3,-1,-1, 1,-1,-3, 1, 1,-3, 1,-3,-3, 3, 1, 1,-1, 3,-1,-1},
|
||||||
|
{ 1, 1,-1,-1,-3,-1, 3,-1, 3,-1, 1, 3, 1,-1, 3, 1, 3,-3,-3, 1,-1,-1, 1, 3}};
|
||||||
|
|
||||||
|
// Prime numbers used for Section 5.5.1.1 of 36.211
|
||||||
|
#define NOF_PRIME_NUMBERS 309
|
||||||
|
uint32_t prime_numbers[NOF_PRIME_NUMBERS] = { 2, 3, 5, 7, 11, 13, 17, 19, 23, 29,
|
||||||
|
31, 37, 41, 43, 47, 53, 59, 61, 67, 71,
|
||||||
|
73, 79, 83, 89, 97, 101, 103, 107, 109, 113,
|
||||||
|
127, 131, 137, 139, 149, 151, 157, 163, 167, 173,
|
||||||
|
179, 181, 191, 193, 197, 199, 211, 223, 227, 229,
|
||||||
|
233, 239, 241, 251, 257, 263, 269, 271, 277, 281,
|
||||||
|
283, 293, 307, 311, 313, 317, 331, 337, 347, 349,
|
||||||
|
353, 359, 367, 373, 379, 383, 389, 397, 401, 409,
|
||||||
|
419, 421, 431, 433, 439, 443, 449, 457, 461, 463,
|
||||||
|
467, 479, 487, 491, 499, 503, 509, 521, 523, 541,
|
||||||
|
547, 557, 563, 569, 571, 577, 587, 593, 599, 601,
|
||||||
|
607, 613, 617, 619, 631, 641, 643, 647, 653, 659,
|
||||||
|
661, 673, 677, 683, 691, 701, 709, 719, 727, 733,
|
||||||
|
739, 743, 751, 757, 761, 769, 773, 787, 797, 809,
|
||||||
|
811, 821, 823, 827, 829, 839, 853, 857, 859, 863,
|
||||||
|
877, 881, 883, 887, 907, 911, 919, 929, 937, 941,
|
||||||
|
947, 953, 967, 971, 977, 983, 991, 997,1009,1013,
|
||||||
|
1019,1021,1031,1033,1039,1049,1051,1061,1063,1069,
|
||||||
|
1087,1091,1093,1097,1103,1109,1117,1123,1129,1151,
|
||||||
|
1153,1163,1171,1181,1187,1193,1201,1213,1217,1223,
|
||||||
|
1229,1231,1237,1249,1259,1277,1279,1283,1289,1291,
|
||||||
|
1297,1301,1303,1307,1319,1321,1327,1361,1367,1373,
|
||||||
|
1381,1399,1409,1423,1427,1429,1433,1439,1447,1451,
|
||||||
|
1453,1459,1471,1481,1483,1487,1489,1493,1499,1511,
|
||||||
|
1523,1531,1543,1549,1553,1559,1567,1571,1579,1583,
|
||||||
|
1597,1601,1607,1609,1613,1619,1621,1627,1637,1657,
|
||||||
|
1663,1667,1669,1693,1697,1699,1709,1721,1723,1733,
|
||||||
|
1741,1747,1753,1759,1777,1783,1787,1789,1801,1811,
|
||||||
|
1823,1831,1847,1861,1867,1871,1873,1877,1879,1889,
|
||||||
|
1901,1907,1913,1931,1933,1949,1951,1973,1979,1987,
|
||||||
|
1993,1997,1999,2003,2011,2017,2027,2029,2039};
|
||||||
|
|
||||||
@ -0,0 +1,249 @@
|
|||||||
|
/**
|
||||||
|
*
|
||||||
|
* \section COPYRIGHT
|
||||||
|
*
|
||||||
|
* Copyright 2013-2014 The libLTE Developers. See the
|
||||||
|
* COPYRIGHT file at the top-level directory of this distribution.
|
||||||
|
*
|
||||||
|
* \section LICENSE
|
||||||
|
*
|
||||||
|
* This file is part of the libLTE library.
|
||||||
|
*
|
||||||
|
* libLTE is free software: you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU Lesser General Public License as
|
||||||
|
* published by the Free Software Foundation, either version 3 of
|
||||||
|
* the License, or (at your option) any later version.
|
||||||
|
*
|
||||||
|
* libLTE 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 Lesser General Public License for more details.
|
||||||
|
*
|
||||||
|
* A copy of the GNU Lesser 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 <strings.h>
|
||||||
|
#include <unistd.h>
|
||||||
|
#include <complex.h>
|
||||||
|
|
||||||
|
#include "liblte/phy/phy.h"
|
||||||
|
|
||||||
|
lte_cell_t cell = {
|
||||||
|
6, // nof_prb
|
||||||
|
MAX_PORTS, // nof_ports
|
||||||
|
1000, // cell_id
|
||||||
|
CPNORM // cyclic prefix
|
||||||
|
};
|
||||||
|
|
||||||
|
char *output_matlab = NULL;
|
||||||
|
|
||||||
|
void usage(char *prog) {
|
||||||
|
printf("Usage: %s [recov]\n", prog);
|
||||||
|
|
||||||
|
printf("\t-r nof_prb [Default %d]\n", cell.nof_prb);
|
||||||
|
printf("\t-e extended cyclic prefix [Default normal]\n");
|
||||||
|
|
||||||
|
printf("\t-c cell_id (1000 tests all). [Default %d]\n", cell.id);
|
||||||
|
|
||||||
|
printf("\t-o output matlab file [Default %s]\n",output_matlab?output_matlab:"None");
|
||||||
|
printf("\t-v increase verbosity\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
void parse_args(int argc, char **argv) {
|
||||||
|
int opt;
|
||||||
|
while ((opt = getopt(argc, argv, "recov")) != -1) {
|
||||||
|
switch(opt) {
|
||||||
|
case 'r':
|
||||||
|
cell.nof_prb = atoi(argv[optind]);
|
||||||
|
break;
|
||||||
|
case 'e':
|
||||||
|
cell.cp = CPEXT;
|
||||||
|
break;
|
||||||
|
case 'c':
|
||||||
|
cell.id = atoi(argv[optind]);
|
||||||
|
break;
|
||||||
|
case 'o':
|
||||||
|
output_matlab = argv[optind];
|
||||||
|
break;
|
||||||
|
case 'v':
|
||||||
|
verbose++;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
usage(argv[0]);
|
||||||
|
exit(-1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
int check_mse(float mod, float arg, int n_port) {
|
||||||
|
INFO("mod=%.4f, arg=%.4f, n_port=%d\n", mod, arg, n_port);
|
||||||
|
switch(n_port) {
|
||||||
|
case 0:
|
||||||
|
if (mod > 0.029) {
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
if (arg > 0.029) {
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case 1:
|
||||||
|
if (mod > 0.012) {
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
if (arg > 0.012) {
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case 2:
|
||||||
|
case 3:
|
||||||
|
if (mod > 3.33) {
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
if (arg > 0.63) {
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
int main(int argc, char **argv) {
|
||||||
|
chest_t eq;
|
||||||
|
cf_t *input = NULL, *ce = NULL, *h = NULL;
|
||||||
|
refsignal_t refs;
|
||||||
|
int i, j, n_port, n_slot, cid, num_re;
|
||||||
|
int ret = -1;
|
||||||
|
int max_cid;
|
||||||
|
FILE *fmatlab = NULL;
|
||||||
|
float mse_mag, mse_phase;
|
||||||
|
|
||||||
|
parse_args(argc,argv);
|
||||||
|
|
||||||
|
if (output_matlab) {
|
||||||
|
fmatlab=fopen(output_matlab, "w");
|
||||||
|
if (!fmatlab) {
|
||||||
|
perror("fopen");
|
||||||
|
goto do_exit;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
num_re = cell.nof_prb * RE_X_RB * CP_NSYMB(cell.cp);
|
||||||
|
|
||||||
|
input = malloc(num_re * sizeof(cf_t));
|
||||||
|
if (!input) {
|
||||||
|
perror("malloc");
|
||||||
|
goto do_exit;
|
||||||
|
}
|
||||||
|
h = malloc(num_re * sizeof(cf_t));
|
||||||
|
if (!h) {
|
||||||
|
perror("malloc");
|
||||||
|
goto do_exit;
|
||||||
|
}
|
||||||
|
ce = malloc(num_re * sizeof(cf_t));
|
||||||
|
if (!ce) {
|
||||||
|
perror("malloc");
|
||||||
|
goto do_exit;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (cell.id == 1000) {
|
||||||
|
cid = 0;
|
||||||
|
max_cid = 504;
|
||||||
|
} else {
|
||||||
|
cid = cell.id;
|
||||||
|
max_cid = cell.id;
|
||||||
|
}
|
||||||
|
|
||||||
|
while(cid <= max_cid) {
|
||||||
|
cell.id = cid;
|
||||||
|
if (chest_init_LTEUL(&eq, cell)) {
|
||||||
|
fprintf(stderr, "Error initializing equalizer\n");
|
||||||
|
goto do_exit;
|
||||||
|
}
|
||||||
|
|
||||||
|
for (n_slot=0;n_slot<NSLOTS_X_FRAME;n_slot++) {
|
||||||
|
for (n_port=0;n_port<cell.nof_ports;n_port++) {
|
||||||
|
|
||||||
|
if (refsignal_init_LTEDL(&refs, n_port, n_slot, cell)) {
|
||||||
|
fprintf(stderr, "Error initiating CRS slot=%d\n", i);
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
bzero(input, sizeof(cf_t) * num_re);
|
||||||
|
for (i=0;i<num_re;i++) {
|
||||||
|
input[i] = 0.5-rand()/RAND_MAX+I*(0.5-rand()/RAND_MAX);
|
||||||
|
}
|
||||||
|
|
||||||
|
bzero(ce, sizeof(cf_t) * num_re);
|
||||||
|
bzero(h, sizeof(cf_t) * num_re);
|
||||||
|
|
||||||
|
refsignal_put(&refs, input);
|
||||||
|
|
||||||
|
for (i=0;i<CP_NSYMB(cell.cp);i++) {
|
||||||
|
for (j=0;j<cell.nof_prb * RE_X_RB;j++) {
|
||||||
|
float x = -1+(float) i/CP_NSYMB(cell.cp) + cosf(2 * M_PI * (float) j/cell.nof_prb/RE_X_RB);
|
||||||
|
h[i*cell.nof_prb * RE_X_RB+j] = (3+x) * cexpf(I * x);
|
||||||
|
input[i*cell.nof_prb * RE_X_RB+j] *= h[i*cell.nof_prb * RE_X_RB+j];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
chest_ce_slot_port(&eq, input, ce, n_slot, n_port);
|
||||||
|
|
||||||
|
mse_mag = mse_phase = 0;
|
||||||
|
for (i=0;i<num_re;i++) {
|
||||||
|
mse_mag += (cabsf(h[i]) - cabsf(ce[i])) * (cabsf(h[i]) - cabsf(ce[i])) / num_re;
|
||||||
|
mse_phase += (cargf(h[i]) - cargf(ce[i])) * (cargf(h[i]) - cargf(ce[i])) / num_re;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (check_mse(mse_mag, mse_phase, n_port)) {
|
||||||
|
goto do_exit;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (fmatlab) {
|
||||||
|
fprintf(fmatlab, "input=");
|
||||||
|
vec_fprint_c(fmatlab, input, num_re);
|
||||||
|
fprintf(fmatlab, ";\n");
|
||||||
|
fprintf(fmatlab, "h=");
|
||||||
|
vec_fprint_c(fmatlab, h, num_re);
|
||||||
|
fprintf(fmatlab, ";\n");
|
||||||
|
fprintf(fmatlab, "ce=");
|
||||||
|
vec_fprint_c(fmatlab, ce, num_re);
|
||||||
|
fprintf(fmatlab, ";\n");
|
||||||
|
chest_fprint(&eq, fmatlab, n_slot, n_port);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
chest_free(&eq);
|
||||||
|
cid+=10;
|
||||||
|
INFO("cid=%d\n", cid);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
ret = 0;
|
||||||
|
|
||||||
|
do_exit:
|
||||||
|
|
||||||
|
if (ce) {
|
||||||
|
free(ce);
|
||||||
|
}
|
||||||
|
if (input) {
|
||||||
|
free(input);
|
||||||
|
}
|
||||||
|
if (h) {
|
||||||
|
free(h);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!ret) {
|
||||||
|
printf("OK\n");
|
||||||
|
} else {
|
||||||
|
printf("Error at cid=%d, slot=%d, port=%d\n",cid, n_slot, n_port);
|
||||||
|
}
|
||||||
|
|
||||||
|
exit(ret);
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue