|
|
/**
|
|
|
* Copyright 2013-2020 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/.
|
|
|
*
|
|
|
*/
|
|
|
|
|
|
#ifndef SRSLTE_BLOCK_H
|
|
|
#define SRSLTE_BLOCK_H
|
|
|
|
|
|
#include "srslte/config.h"
|
|
|
#include <stdbool.h>
|
|
|
#include <stdint.h>
|
|
|
|
|
|
/**
|
|
|
* @brief Maximum number of bits that can be encoded
|
|
|
*/
|
|
|
#define SRSLTE_FEC_BLOCK_MAX_NOF_BITS 11U
|
|
|
|
|
|
/**
|
|
|
* @brief Block coding output complete length
|
|
|
*/
|
|
|
#define SRSLTE_FEC_BLOCK_SIZE 32U
|
|
|
|
|
|
/**
|
|
|
* @brief Encodes unpacked data using Reed–Muller code block channel coding.
|
|
|
*
|
|
|
* @remark Described by 3GPP 36.212 section 5.2.3.3 for 4G/LTE
|
|
|
* @remark Described by 3GPP 38.212 section 5.3.3.3 for 5G/NR
|
|
|
*
|
|
|
* @param[in] input provides unpacked bits to encode
|
|
|
* @param[in] input_len number of bits to encode, the maximum number of bits is SRSLTE_FEC_BLOCK_MAX_NOF_BITS
|
|
|
* @param[out] output points to the unpacked encoded data
|
|
|
* @param[in] output_len number of bits of encoded bits
|
|
|
*/
|
|
|
SRSLTE_API void srslte_block_encode(const uint8_t* input, uint32_t input_len, uint8_t* output, uint32_t output_len);
|
|
|
|
|
|
/**
|
|
|
* @brief Decodes 16-bit signed data using Reed–Muller code block channel coding.
|
|
|
*
|
|
|
* @param[in] llr Provides received LLRs
|
|
|
* @param[in] nof_llr number of available LLRs
|
|
|
* @param[out] data Data destination to store unpacked received bits
|
|
|
* @param[in] data_len number of bits to decode, the maximum number of bits is SRSLTE_FEC_BLOCK_MAX_NOF_BITS
|
|
|
* @return Decoded bits correlation if provided arguments are valid, otherwise SRSLTE_ERROR code
|
|
|
*/
|
|
|
SRSLTE_API int32_t srslte_block_decode_i16(const int16_t* llr, uint32_t nof_llr, uint8_t* data, uint32_t data_len);
|
|
|
|
|
|
/**
|
|
|
* @brief Decodes 8-bit signed data using Reed–Muller code block channel coding.
|
|
|
*
|
|
|
* @param[in] llr Provides received LLRs
|
|
|
* @param[in] nof_llr number of available LLRs
|
|
|
* @param[out] data Data destination to store unpacked received bits
|
|
|
* @param[in] data_len number of bits to decode, the maximum number of bits is SRSLTE_FEC_BLOCK_MAX_NOF_BITS
|
|
|
* @return Decoded bits correlation if provided arguments are valid, otherwise SRSLTE_ERROR code
|
|
|
*/
|
|
|
SRSLTE_API int32_t srslte_block_decode_i8(const int8_t* llr, uint32_t nof_llr, uint8_t* data, uint32_t data_len);
|
|
|
|
|
|
#endif // SRSLTE_BLOCK_H
|