mirror of https://github.com/pvnis/srsRAN_4G.git
made srslte static srslte_rf shared. Deleted tutorial examples
Ismael Gomez
8 years ago
parent
40ab4b8b57
commit
f264b4d652
@ -1,35 +0,0 @@
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#
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# Copyright 2013-2017 Software Radio Systems Limited
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#
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# This file is part of srsLTE
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#
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# srsLTE is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero 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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# srsLTE 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 Affero General Public License for more details.
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#
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# A copy of the GNU Affero 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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# EXAMPLES shown in WinnForum 2015 Tutorial
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#################################################################
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if(SRSGUI_FOUND AND UHD_FOUND)
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add_executable(pss pss.c)
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target_link_libraries(pss srslte_phy ${SRSGUI_LIBRARIES})
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add_executable(simple_tx simple_tx.c)
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target_link_libraries(simple_tx srslte_phy)
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endif(SRSGUI_FOUND AND UHD_FOUND)
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@ -1,399 +0,0 @@
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/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2015 Software Radio Systems Limited
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*
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* \section LICENSE
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*
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* This file is part of the srsLTE library.
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*
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* srsLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero 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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* srsLTE 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 Affero General Public License for more details.
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*
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* A copy of the GNU Affero 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 <time.h>
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#include <stdbool.h>
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#include "srslte/srslte.h"
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#include "srslte/phy/rf/rf.h"
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#ifndef DISABLE_GRAPHICS
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void init_plots();
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void do_plots(float *corr, float energy, uint32_t size, cf_t ce[SRSLTE_PSS_LEN]);
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void do_plots_sss(float *corr_m0, float *corr_m1);
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#endif
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bool disable_plots = false;
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int cell_id = -1;
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char *rf_args="";
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float rf_gain=40.0, rf_freq=-1.0;
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int nof_frames = -1;
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uint32_t fft_size=128;
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float threshold = 0.4;
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int N_id_2_sync = -1;
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srslte_cp_t cp=SRSLTE_CP_NORM;
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void usage(char *prog) {
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printf("Usage: %s [aedgtvnp] -f rx_frequency_hz -i cell_id\n", prog);
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printf("\t-a RF args [Default %s]\n", rf_args);
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printf("\t-g RF Gain [Default %.2f dB]\n", rf_gain);
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printf("\t-n nof_frames [Default %d]\n", nof_frames);
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printf("\t-l N_id_2 to sync [Default use cell_id]\n");
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printf("\t-e Extended CP [Default Normal]\n", fft_size);
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printf("\t-s symbol_sz [Default %d]\n", fft_size);
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printf("\t-t threshold [Default %.2f]\n", threshold);
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#ifndef DISABLE_GRAPHICS
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printf("\t-d disable plots [Default enabled]\n");
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#else
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printf("\t plots are disabled. Graphics library not available\n");
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#endif
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printf("\t-v srslte_verbose\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, "adgetvsfil")) != -1) {
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switch (opt) {
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case 'a':
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rf_args = argv[optind];
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break;
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case 'g':
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rf_gain = atof(argv[optind]);
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break;
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case 'f':
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rf_freq = atof(argv[optind]);
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break;
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case 't':
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threshold = atof(argv[optind]);
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break;
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case 'e':
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cp = SRSLTE_CP_EXT;
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break;
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case 'i':
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cell_id = atoi(argv[optind]);
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break;
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case 'l':
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N_id_2_sync = atoi(argv[optind]);
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break;
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case 's':
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fft_size = atoi(argv[optind]);
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break;
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case 'n':
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nof_frames = atoi(argv[optind]);
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break;
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case 'd':
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disable_plots = true;
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break;
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case 'v':
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srslte_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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if (cell_id < 0 || rf_freq < 0) {
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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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float m0_value, m1_value;
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int main(int argc, char **argv) {
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cf_t *buffer;
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int frame_cnt, n;
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srslte_rf_t rf;
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srslte_pss_synch_t pss;
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srslte_cfo_t cfocorr, cfocorr64;
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srslte_sss_synch_t sss;
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int32_t flen;
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int peak_idx, last_peak;
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float peak_value;
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float mean_peak;
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uint32_t nof_det, nof_nodet, nof_nopeak, nof_nopeakdet;
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cf_t ce[SRSLTE_PSS_LEN];
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parse_args(argc, argv);
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if (N_id_2_sync == -1) {
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N_id_2_sync = cell_id%3;
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}
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uint32_t N_id_2 = cell_id%3;
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uint32_t N_id_1 = cell_id/3;
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#ifndef DISABLE_GRAPHICS
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if (!disable_plots)
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init_plots();
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#endif
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flen = 4800*(fft_size/64);
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buffer = malloc(sizeof(cf_t) * flen * 2);
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if (!buffer) {
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perror("malloc");
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exit(-1);
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}
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if (srslte_pss_synch_init_fft(&pss, flen, fft_size)) {
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fprintf(stderr, "Error initiating PSS\n");
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exit(-1);
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}
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if (srslte_pss_synch_set_N_id_2(&pss, N_id_2_sync)) {
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fprintf(stderr, "Error setting N_id_2=%d\n",N_id_2_sync);
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exit(-1);
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}
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srslte_cfo_init(&cfocorr, flen);
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srslte_cfo_init(&cfocorr64, flen);
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if (srslte_sss_synch_init(&sss, fft_size)) {
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fprintf(stderr, "Error initializing SSS object\n");
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return SRSLTE_ERROR;
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}
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srslte_sss_synch_set_N_id_2(&sss, N_id_2);
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printf("Opening RF device...\n");
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if (srslte_rf_open(&rf, rf_args)) {
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fprintf(stderr, "Error opening rf\n");
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exit(-1);
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}
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printf("N_id_2: %d\n", N_id_2);
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printf("Set RX rate: %.2f MHz\n", srslte_rf_set_rx_srate(&rf, flen*2*100) / 1000000);
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printf("Set RX gain: %.1f dB\n", srslte_rf_set_rx_gain(&rf, rf_gain));
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printf("Set RX freq: %.2f MHz\n", srslte_rf_set_rx_freq(&rf, rf_freq) / 1000000);
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srslte_rf_rx_wait_lo_locked(&rf);
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srslte_rf_start_rx_stream(&rf);
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printf("Frame length %d samples\n", flen);
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printf("PSS detection threshold: %.2f\n", threshold);
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nof_det = nof_nodet = nof_nopeak = nof_nopeakdet = 0;
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frame_cnt = 0;
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last_peak = 0;
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mean_peak = 0;
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int peak_offset = 0;
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float cfo;
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float mean_cfo = 0;
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uint32_t m0, m1;
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uint32_t sss_error1 = 0, sss_error2 = 0, sss_error3 = 0;
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uint32_t cp_is_norm = 0;
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srslte_sync_t ssync;
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bzero(&ssync, sizeof(srslte_sync_t));
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ssync.fft_size = fft_size;
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while(frame_cnt < nof_frames || nof_frames == -1) {
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peak_offset = 0;
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n = srslte_rf_recv(&rf, buffer, flen - peak_offset, 1);
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if (n < 0) {
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fprintf(stderr, "Error receiving samples\n");
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exit(-1);
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}
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peak_idx = srslte_pss_synch_find_pss(&pss, buffer, &peak_value);
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if (peak_idx < 0) {
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fprintf(stderr, "Error finding PSS peak\n");
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exit(-1);
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}
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mean_peak = SRSLTE_VEC_CMA(peak_value, mean_peak, frame_cnt);
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if (peak_value >= threshold) {
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nof_det++;
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if (peak_idx >= fft_size) {
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// Estimate CFO
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cfo = srslte_pss_synch_cfo_compute(&pss, &buffer[peak_idx-fft_size]);
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mean_cfo = SRSLTE_VEC_CMA(cfo, mean_cfo, frame_cnt);
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// Correct CFO
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srslte_cfo_correct(&cfocorr, buffer, buffer, -mean_cfo / fft_size);
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// Estimate channel
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if (srslte_pss_synch_chest(&pss, &buffer[peak_idx-fft_size], ce)) {
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fprintf(stderr, "Error computing channel estimation\n");
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exit(-1);
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}
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// Find SSS
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int sss_idx = peak_idx-2*fft_size-(SRSLTE_CP_ISNORM(cp)?SRSLTE_CP_LEN(fft_size, SRSLTE_CP_NORM_LEN):SRSLTE_CP_LEN(fft_size, SRSLTE_CP_EXT_LEN));
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if (sss_idx >= 0 && sss_idx < flen-fft_size) {
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srslte_sss_synch_m0m1_partial(&sss, &buffer[sss_idx], 3, NULL, &m0, &m0_value, &m1, &m1_value);
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if (srslte_sss_synch_N_id_1(&sss, m0, m1) != N_id_1) {
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sss_error2++;
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}
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INFO("Partial N_id_1: %d\n", srslte_sss_synch_N_id_1(&sss, m0, m1));
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srslte_sss_synch_m0m1_diff(&sss, &buffer[sss_idx], &m0, &m0_value, &m1, &m1_value);
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if (srslte_sss_synch_N_id_1(&sss, m0, m1) != N_id_1) {
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sss_error3++;
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}
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INFO("Diff N_id_1: %d\n", srslte_sss_synch_N_id_1(&sss, m0, m1));
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srslte_sss_synch_m0m1_partial(&sss, &buffer[sss_idx], 1, NULL, &m0, &m0_value, &m1, &m1_value);
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if (srslte_sss_synch_N_id_1(&sss, m0, m1) != N_id_1) {
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sss_error1++;
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}
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INFO("Full N_id_1: %d\n", srslte_sss_synch_N_id_1(&sss, m0, m1));
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}
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// Estimate CP
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if (peak_idx > 2*(fft_size + SRSLTE_CP_LEN_EXT(fft_size))) {
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srslte_cp_t cp = srslte_sync_detect_cp(&ssync, buffer, peak_idx);
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if (SRSLTE_CP_ISNORM(cp)) {
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cp_is_norm++;
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}
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}
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} else {
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INFO("No space for CFO computation. Frame starts at \n",peak_idx);
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}
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if(srslte_sss_synch_subframe(m0,m1) == 0)
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{
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#ifndef DISABLE_GRAPHICS
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if (!disable_plots)
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do_plots_sss(sss.corr_output_m0, sss.corr_output_m1);
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#endif
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}
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} else {
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nof_nodet++;
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}
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if (frame_cnt > 100) {
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if (abs(last_peak-peak_idx) > 4) {
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if (peak_value >= threshold) {
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nof_nopeakdet++;
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}
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nof_nopeak++;
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}
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}
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frame_cnt++;
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printf("[%5d]: Pos: %5d, PSR: %4.1f (~%4.1f) Pdet: %4.2f, "
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"FA: %4.2f, CFO: %+4.1f kHz SSSmiss: %4.2f/%4.2f/%4.2f CPNorm: %.0f\%\r",
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frame_cnt,
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peak_idx,
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peak_value, mean_peak,
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(float) nof_det/frame_cnt,
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(float) nof_nopeakdet/frame_cnt, mean_cfo*15,
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(float) sss_error1/nof_det,(float) sss_error2/nof_det,(float) sss_error3/nof_det,
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(float) cp_is_norm/nof_det * 100);
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if (SRSLTE_VERBOSE_ISINFO()) {
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printf("\n");
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}
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#ifndef DISABLE_GRAPHICS
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if (!disable_plots)
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do_plots(pss.conv_output_avg, pss.conv_output_avg[peak_idx], pss.fft_size+pss.frame_size-1, ce);
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#endif
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last_peak = peak_idx;
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}
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srslte_pss_synch_free(&pss);
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free(buffer);
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srslte_rf_close(&rf);
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printf("Ok\n");
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exit(0);
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}
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extern cf_t *tmp2;
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/**********************************************************************
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* Plotting Functions
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***********************************************************************/
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#ifndef DISABLE_GRAPHICS
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#include "srsgui/srsgui.h"
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plot_real_t pssout;
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//plot_complex_t pce;
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plot_real_t psss1;//, psss2;
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float tmp[100000];
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cf_t tmpce[SRSLTE_PSS_LEN];
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void init_plots() {
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sdrgui_init();
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plot_real_init(&pssout);
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plot_real_setTitle(&pssout, "PSS xCorr");
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plot_real_setLabels(&pssout, "Index", "Absolute value");
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plot_real_setYAxisScale(&pssout, 0, 1);
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/*
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plot_complex_init(&pce);
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plot_complex_setTitle(&pce, "Channel Estimates");
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plot_complex_setYAxisScale(&pce, Ip, -2, 2);
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plot_complex_setYAxisScale(&pce, Q, -2, 2);
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plot_complex_setYAxisScale(&pce, Magnitude, 0, 2);
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plot_complex_setYAxisScale(&pce, Phase, -M_PI, M_PI);
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*/
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plot_real_init(&psss1);
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plot_real_setTitle(&psss1, "SSS xCorr m0");
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plot_real_setLabels(&psss1, "Index", "Absolute value");
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plot_real_setYAxisScale(&psss1, 0, 1);
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/*
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plot_real_init(&psss2);
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plot_real_setTitle(&psss2, "SSS xCorr m1");
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plot_real_setLabels(&psss2, "Index", "Absolute value");
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plot_real_setYAxisScale(&psss2, 0, 1);
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*/
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}
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void do_plots(float *corr, float energy, uint32_t size, cf_t ce[SRSLTE_PSS_LEN]) {
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srslte_vec_sc_prod_fff(corr,1./energy,tmp, size);
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plot_real_setNewData(&pssout, tmp, size);
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// float norm = srslte_vec_avg_power_cf(ce, SRSLTE_PSS_LEN);
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// srslte_vec_sc_prod_cfc(ce, 1.0/sqrt(norm), tmpce, SRSLTE_PSS_LEN);
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//plot_complex_setNewData(&pce, tmpce, SRSLTE_PSS_LEN);
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}
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void do_plots_sss(float *corr_m0, float *corr_m1) {
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if (m0_value > 0)
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srslte_vec_sc_prod_fff(corr_m0,1./m0_value,corr_m0, SRSLTE_SSS_N);
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plot_real_setNewData(&psss1, corr_m0, SRSLTE_SSS_N);
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// if (m1_value > 0)
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// srslte_vec_sc_prod_fff(corr_m1,1./m1_value,corr_m1, SRSLTE_SSS_N);
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// plot_real_setNewData(&psss2, corr_m1, SRSLTE_SSS_N);
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}
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#endif
|
||||
@ -1,262 +0,0 @@
|
||||
/**
|
||||
*
|
||||
* \section COPYRIGHT
|
||||
*
|
||||
* Copyright 2013-2015 Software Radio Systems Limited
|
||||
*
|
||||
* \section LICENSE
|
||||
*
|
||||
* This file is part of the srsLTE library.
|
||||
*
|
||||
* 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 <sys/select.h>
|
||||
#include <pthread.h>
|
||||
#include <semaphore.h>
|
||||
|
||||
#include "srslte/srslte.h"
|
||||
|
||||
#include "srslte/phy/rf/rf.h"
|
||||
srslte_rf_t rf;
|
||||
|
||||
char *output_file_name = NULL;
|
||||
|
||||
srslte_cell_t cell = {
|
||||
6, // nof_prb
|
||||
1, // nof_ports
|
||||
1, // cell_id
|
||||
SRSLTE_CP_NORM, // cyclic prefix
|
||||
SRSLTE_PHICH_R_1, // PHICH resources
|
||||
SRSLTE_PHICH_NORM // PHICH length
|
||||
};
|
||||
|
||||
|
||||
char *rf_args = "";
|
||||
float rf_amp = 0.5, rf_gain = 30.0, rf_freq = 2400000000;
|
||||
|
||||
bool null_file_sink=false;
|
||||
srslte_filesink_t fsink;
|
||||
srslte_ofdm_t ifft;
|
||||
srslte_mod_t modulation;
|
||||
|
||||
uint32_t sf_n_re, sf_n_samples;
|
||||
|
||||
cf_t *sf_buffer = NULL, *output_buffer = NULL;
|
||||
|
||||
void usage(char *prog) {
|
||||
printf("Usage: %s [algfmv]\n", prog);
|
||||
printf("\t-a RF args [Default %s]\n", rf_args);
|
||||
printf("\t-l RF amplitude [Default %.2f]\n", rf_amp);
|
||||
printf("\t-g RF TX gain [Default %.2f dB]\n", rf_gain);
|
||||
printf("\t-f RF TX frequency [Default %.1f MHz]\n", rf_freq / 1000000);
|
||||
printf("\t-m modulation (1: BPSK, 2: QPSK, 3: QAM16, 4: QAM64) [Default BPSK]\n");
|
||||
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, "algfmv")) != -1) {
|
||||
switch (opt) {
|
||||
case 'a':
|
||||
rf_args = argv[optind];
|
||||
break;
|
||||
case 'g':
|
||||
rf_gain = atof(argv[optind]);
|
||||
break;
|
||||
case 'l':
|
||||
rf_amp = atof(argv[optind]);
|
||||
break;
|
||||
case 'f':
|
||||
rf_freq = atof(argv[optind]);
|
||||
break;
|
||||
case 'm':
|
||||
switch(atoi(argv[optind])) {
|
||||
case 1:
|
||||
modulation = SRSLTE_MOD_BPSK;
|
||||
break;
|
||||
case 2:
|
||||
modulation = SRSLTE_MOD_QPSK;
|
||||
break;
|
||||
case 4:
|
||||
modulation = SRSLTE_MOD_16QAM;
|
||||
break;
|
||||
case 6:
|
||||
modulation = SRSLTE_MOD_64QAM;
|
||||
break;
|
||||
default:
|
||||
fprintf(stderr, "Invalid modulation %d. Possible values: "
|
||||
"(1: BPSK, 2: QPSK, 3: QAM16, 4: QAM64)\n", atoi(argv[optind]));
|
||||
break;
|
||||
}
|
||||
break;
|
||||
case 'v':
|
||||
srslte_verbose++;
|
||||
break;
|
||||
default:
|
||||
usage(argv[0]);
|
||||
exit(-1);
|
||||
}
|
||||
}
|
||||
#ifdef DISABLE_RF
|
||||
if (!output_file_name) {
|
||||
usage(argv[0]);
|
||||
exit(-1);
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
void base_init() {
|
||||
|
||||
/* init memory */
|
||||
sf_buffer = malloc(sizeof(cf_t) * sf_n_re);
|
||||
if (!sf_buffer) {
|
||||
perror("malloc");
|
||||
exit(-1);
|
||||
}
|
||||
output_buffer = malloc(sizeof(cf_t) * sf_n_samples);
|
||||
if (!output_buffer) {
|
||||
perror("malloc");
|
||||
exit(-1);
|
||||
}
|
||||
printf("Opening RF device...\n");
|
||||
if (srslte_rf_open(&rf, rf_args)) {
|
||||
fprintf(stderr, "Error opening rf\n");
|
||||
exit(-1);
|
||||
}
|
||||
|
||||
/* create ifft object */
|
||||
if (srslte_ofdm_tx_init(&ifft, SRSLTE_CP_NORM, cell.nof_prb)) {
|
||||
fprintf(stderr, "Error creating iFFT object\n");
|
||||
exit(-1);
|
||||
}
|
||||
srslte_ofdm_set_normalize(&ifft, true);
|
||||
}
|
||||
|
||||
void base_free() {
|
||||
|
||||
srslte_ofdm_tx_free(&ifft);
|
||||
|
||||
if (sf_buffer) {
|
||||
free(sf_buffer);
|
||||
}
|
||||
if (output_buffer) {
|
||||
free(output_buffer);
|
||||
}
|
||||
srslte_rf_close(&rf);
|
||||
}
|
||||
|
||||
|
||||
int main(int argc, char **argv) {
|
||||
int sf_idx=0, N_id_2=0;
|
||||
cf_t pss_signal[SRSLTE_PSS_LEN];
|
||||
float sss_signal0[SRSLTE_SSS_LEN]; // for subframe 0
|
||||
float sss_signal5[SRSLTE_SSS_LEN]; // for subframe 5
|
||||
int i;
|
||||
|
||||
#ifdef DISABLE_RF
|
||||
if (argc < 3) {
|
||||
usage(argv[0]);
|
||||
exit(-1);
|
||||
}
|
||||
#endif
|
||||
|
||||
parse_args(argc, argv);
|
||||
|
||||
N_id_2 = cell.id % 3;
|
||||
sf_n_re = 2 * SRSLTE_CP_NORM_NSYMB * cell.nof_prb * SRSLTE_NRE;
|
||||
sf_n_samples = 2 * SRSLTE_SLOT_LEN(srslte_symbol_sz(cell.nof_prb));
|
||||
|
||||
cell.phich_length = SRSLTE_PHICH_NORM;
|
||||
cell.phich_resources = SRSLTE_PHICH_R_1;
|
||||
|
||||
/* this *must* be called after setting slot_len_* */
|
||||
base_init();
|
||||
|
||||
/* Generate PSS/SSS signals */
|
||||
srslte_pss_generate(pss_signal, N_id_2);
|
||||
srslte_sss_generate(sss_signal0, sss_signal5, cell.id);
|
||||
|
||||
printf("Set TX rate: %.2f MHz\n",
|
||||
srslte_rf_set_tx_srate(&rf, srslte_sampling_freq_hz(cell.nof_prb)) / 1000000);
|
||||
printf("Set TX gain: %.1f dB\n", srslte_rf_set_tx_gain(&rf, rf_gain));
|
||||
printf("Set TX freq: %.2f MHz\n",
|
||||
srslte_rf_set_tx_freq(&rf, rf_freq) / 1000000);
|
||||
|
||||
uint32_t nbits;
|
||||
|
||||
srslte_modem_table_t modulator;
|
||||
srslte_modem_table_init(&modulator);
|
||||
srslte_modem_table_lte(&modulator, modulation);
|
||||
|
||||
srslte_tcod_t turbocoder;
|
||||
srslte_tcod_init(&turbocoder, SRSLTE_TCOD_MAX_LEN_CB);
|
||||
|
||||
srslte_dft_precoding_t dft_precod;
|
||||
srslte_dft_precoding_init(&dft_precod, 12);
|
||||
|
||||
nbits = srslte_cbsegm_cbindex(sf_n_samples/8/srslte_mod_bits_x_symbol(modulation)/3 - 12);
|
||||
uint32_t ncoded_bits = sf_n_samples/8/srslte_mod_bits_x_symbol(modulation);
|
||||
|
||||
uint8_t *data = malloc(sizeof(uint8_t)*nbits);
|
||||
uint8_t *data_enc = malloc(sizeof(uint8_t)*ncoded_bits);
|
||||
cf_t *symbols = malloc(sizeof(cf_t)*sf_n_samples);
|
||||
|
||||
bzero(data_enc, sizeof(uint8_t)*ncoded_bits);
|
||||
while (1) {
|
||||
for (sf_idx = 0; sf_idx < SRSLTE_NSUBFRAMES_X_FRAME; sf_idx++) {
|
||||
bzero(sf_buffer, sizeof(cf_t) * sf_n_re);
|
||||
|
||||
#ifdef kk
|
||||
if (sf_idx == 0 || sf_idx == 5) {
|
||||
srslte_pss_put_slot(pss_signal, sf_buffer, cell.nof_prb, SRSLTE_CP_NORM);
|
||||
srslte_sss_put_slot(sf_idx ? sss_signal5 : sss_signal0, sf_buffer, cell.nof_prb,
|
||||
SRSLTE_CP_NORM);
|
||||
/* Transform to OFDM symbols */
|
||||
srslte_ofdm_tx_sf(&ifft, sf_buffer, output_buffer);
|
||||
|
||||
float norm_factor = (float) sqrtf(cell.nof_prb)/15;
|
||||
srslte_vec_sc_prod_cfc(output_buffer, rf_amp*norm_factor, output_buffer, SRSLTE_SF_LEN_PRB(cell.nof_prb));
|
||||
|
||||
} else {
|
||||
#endif
|
||||
/* Generate random data */
|
||||
for (i=0;i<nbits;i++) {
|
||||
data[i] = rand()%2;
|
||||
}
|
||||
srslte_tcod_encode(&turbocoder, data, data_enc, nbits);
|
||||
srslte_mod_modulate(&modulator, data_enc, symbols, ncoded_bits);
|
||||
srslte_interp_linear_offset_cabs(symbols, output_buffer, 8, sf_n_samples/8, 0, 0);
|
||||
// }
|
||||
|
||||
/* send to usrp */
|
||||
srslte_vec_sc_prod_cfc(output_buffer, rf_amp, output_buffer, sf_n_samples);
|
||||
srslte_rf_send(&rf, output_buffer, sf_n_samples, true);
|
||||
}
|
||||
}
|
||||
|
||||
base_free();
|
||||
|
||||
printf("Done\n");
|
||||
exit(0);
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue