srsLTE/lib/include/srslte/phy/fec/convcoder.h

57 lines
1.7 KiB
C

/**
*
* \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 <stdbool.h>
#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