mirror of https://github.com/PentHertz/srsLTE.git
97 lines
3.3 KiB
C
97 lines
3.3 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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#ifndef SRSLTE_CBSEGM_H
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#define SRSLTE_CBSEGM_H
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#include <stdbool.h>
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#include <stdint.h>
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#include "srslte/config.h"
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#define SRSLTE_NOF_TC_CB_SIZES 188
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typedef struct SRSLTE_API {
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uint32_t F; ///< \brief Total number of the transport block bit
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uint32_t C; ///< \brief Total number of code blocks
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uint32_t K1; ///< \brief Code block size 1
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uint32_t K2; ///< \brief Code block size 2
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uint32_t K1_idx; ///< \brief Code block size index 1
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uint32_t K2_idx; ///< \brief Code block size index 2
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uint32_t C1; ///< \brief Number of code blocks of size 1
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uint32_t C2; ///< \brief Number of code blocks of size 2
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uint32_t tbs; ///< \brief Actual transport block size
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uint32_t L_tb; ///< \brief Transport block CRC length
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uint32_t L_cb; ///< \brief Code block CRC length
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uint32_t Z; ///< \brief Lifting size, LDPC only
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} srslte_cbsegm_t;
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/**
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* @brief Calculate code block Segmentation for LTE
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*
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* @remark Defined as in TS 36.212 V8.8.0 section 5.1.2 Code block segmentation and code block CRC attachment
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*
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* @param[out] s Output of code block segmentation calculation
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* @param[in] tbs Input Transport Block Size in bits. CRC's will be added to this
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* @return It returns SRSLTE_SUCCESS if the provided arguments are valid, otherwise it returns SRSLTE_ERROR code
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*/
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SRSLTE_API int srslte_cbsegm(srslte_cbsegm_t* s, uint32_t tbs);
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/**
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* @brief provides interleaver size Table 5.1.3-3 (36.212) index
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*
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* @remark Defined as in TS 36.212 V8.8.0 Table 5.1.3-3 Turbo code internal interleaver parameters
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*
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* @return It returns Turbo coder interleaver size if the provided arguments are valid, otherwise it returns
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* SRSLTE_ERROR code
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*/
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SRSLTE_API int srslte_cbsegm_cbsize(uint32_t index);
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/**
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* @brief Check is code block size is valid for LTE Turbo Code
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*
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* @param[in] size Size of code block in bits
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* @return true if Code Block size is allowed
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*/
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SRSLTE_API bool srslte_cbsegm_cbsize_isvalid(uint32_t size);
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/**
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* @brief Finds index of minimum K>=long_cb in Table 5.1.3-3 of 36.212
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*
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* @return I_TBS or error code
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*/
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SRSLTE_API int srslte_cbsegm_cbindex(uint32_t long_cb);
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/**
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* @brief Calculate code block Segmentation for NR LDPC base graph 1
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*
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* @remark Defined as in Section 5.2.2 of 38.212 V15.9.0
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*
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* @param[out] s Output of code block segmentation calculation
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* @param[in] tbs Input Transport Block Size in bits. CRC's will be added to this
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* @return It returns SRSLTE_SUCCESS if the provided arguments are valid, otherwise it returns SRSLTE_ERROR code
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*/
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SRSLTE_API int srslte_cbsegm_ldpc_bg1(srslte_cbsegm_t* s, uint32_t tbs);
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/**
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* @brief Calculate code block Segmentation for NR LDPC base graph 2
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*
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* @remark Defined as in Section 5.2.2 of 38.212 V15.9.0
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*
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* @param[out] s Output of code block segmentation calculation
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* @param[in] tbs Input Transport Block Size in bits. CRC's will be added to this
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* @return It returns SRSLTE_SUCCESS if the provided arguments are valid, otherwise it returns SRSLTE_ERROR code
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*/
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SRSLTE_API int srslte_cbsegm_ldpc_bg2(srslte_cbsegm_t* s, uint32_t tbs);
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#endif // SRSLTE_CBSEGM_H
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