/* * Copyright 2013-2019 Software Radio Systems Limited * * This file is part of srsLTE. * * 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: turbodecoder.h * * Description: Turbo Decoder. * Parallel Concatenated Convolutional Code (PCCC) with two 8-state constituent * encoders and one turbo code internal interleaver. The coding rate of turbo * encoder is 1/3. * MAP_GEN is the MAX-LOG-MAP generic implementation of the decoder. * * Reference: 3GPP TS 36.212 version 10.0.0 Release 10 Sec. 5.1.3.2 *********************************************************************************************/ #ifndef SRSLTE_TURBODECODER_GEN_H #define SRSLTE_TURBODECODER_GEN_H #include "srslte/config.h" #include "srslte/phy/fec/cbsegm.h" #include "srslte/phy/fec/tc_interl.h" #define SRSLTE_TCOD_RATE 3 #define SRSLTE_TCOD_TOTALTAIL 12 #define SRSLTE_TCOD_MAX_LEN_CB 6144 typedef struct SRSLTE_API { uint32_t max_long_cb; int16_t* beta; } tdec_gen_t; int tdec_gen_init(void** h, uint32_t max_long_cb); void tdec_gen_free(void* h); void tdec_gen_dec(void* h, int16_t* input, int16_t* app, int16_t* parity, int16_t* output, uint32_t long_cb); void tdec_gen_extract_input(int16_t* input, int16_t* syst, int16_t* parity0, int16_t* parity1, int16_t* app2, uint32_t long_cb); void tdec_gen_decision_byte(int16_t* app1, uint8_t* output, uint32_t long_cb); #endif // SRSLTE_TURBODECODER_GEN_H