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63 lines
2.0 KiB
C
63 lines
2.0 KiB
C
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2020 Software Radio Systems Limited
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*
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* By using this file, you agree to the terms and conditions set
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* forth in the LICENSE file which can be found at the top level of
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* the distribution.
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*
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*/
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/**********************************************************************************************
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* File: turbocoder.h
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*
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* Description: Turbo coder.
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* Parallel Concatenated Convolutional Code (PCCC) with two 8-state constituent
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* encoders and one turbo code internal interleaver. The coding rate of turbo
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* encoder is 1/3.
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*
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* Reference: 3GPP TS 36.212 version 10.0.0 Release 10 Sec. 5.1.3.2
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*********************************************************************************************/
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#ifndef SRSLTE_TURBOCODER_H
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#define SRSLTE_TURBOCODER_H
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#include "srslte/config.h"
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#include "srslte/phy/fec/crc.h"
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#include "srslte/phy/fec/turbo/tc_interl.h"
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#define SRSLTE_TCOD_MAX_LEN_CB_BYTES (6144 / 8)
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#ifndef SRSLTE_TX_NULL
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#define SRSLTE_TX_NULL 100
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#endif
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typedef struct SRSLTE_API {
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uint32_t max_long_cb;
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uint8_t* temp;
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} srslte_tcod_t;
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/* This structure is used as an output for the LUT version of the encoder.
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* The encoder produces parity bits only and rate matching will interleave them
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* with the systematic bits
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*/
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SRSLTE_API int srslte_tcod_init(srslte_tcod_t* h, uint32_t max_long_cb);
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SRSLTE_API void srslte_tcod_free(srslte_tcod_t* h);
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SRSLTE_API int srslte_tcod_encode(srslte_tcod_t* h, uint8_t* input, uint8_t* output, uint32_t long_cb);
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SRSLTE_API int srslte_tcod_encode_lut(srslte_tcod_t* h,
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srslte_crc_t* crc_tb,
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srslte_crc_t* crc_cb,
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uint8_t* input,
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uint8_t* parity,
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uint32_t cblen_idx,
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bool last_cb);
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SRSLTE_API void srslte_tcod_gentable();
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#endif // SRSLTE_TURBOCODER_H
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