/** * * \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/. * */ /********************************************************************************************** * File: convcoder.h * * Description: Convolutional encoder. * LTE uses a tail biting convolutional code with constraint length 7 * and coding rate 1/3. * * Reference: 3GPP TS 36.212 version 10.0.0 Release 10 Sec. 5.1.3.1 *********************************************************************************************/ #ifndef CONVCODER_ #define CONVCODER_ #include #include "srslte/config.h" typedef struct SRSLTE_API { uint32_t R; uint32_t K; int poly[3]; bool tail_biting; }srslte_convcoder_t; SRSLTE_API int srslte_convcoder_encode(srslte_convcoder_t *q, uint8_t *input, uint8_t *output, uint32_t frame_length); #endif