mirror of https://github.com/pvnis/srsRAN_4G.git
Added LDPC codeblock segmentation
Xavier Arteaga
4 years ago
committed by
Andre Puschmann
parent
fc3d154fe3
commit
e8f94c40b8
@ -0,0 +1,102 @@
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/*
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* Copyright 2013-2020 Software Radio Systems Limited
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*
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* This file is part of srsLTE.
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*
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* srsLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsLTE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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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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} 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_nr_bg2(srslte_cbsegm_t* s, uint32_t tbs);
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#endif // SRSLTE_CBSEGM_H
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@ -1,52 +0,0 @@
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/*
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* Copyright 2013-2020 Software Radio Systems Limited
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*
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* This file is part of srsLTE.
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*
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* srsLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsLTE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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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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#ifndef SRSLTE_CBSEGM_H
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#define SRSLTE_CBSEGM_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;
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uint32_t C;
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uint32_t K1;
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uint32_t K2;
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uint32_t K1_idx;
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uint32_t K2_idx;
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uint32_t C1;
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uint32_t C2;
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uint32_t tbs;
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} srslte_cbsegm_t;
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SRSLTE_API int srslte_cbsegm(srslte_cbsegm_t* s, uint32_t tbs);
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SRSLTE_API int srslte_cbsegm_cbsize(uint32_t index);
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SRSLTE_API bool srslte_cbsegm_cbsize_isvalid(uint32_t size);
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SRSLTE_API int srslte_cbsegm_cbindex(uint32_t long_cb);
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#endif // SRSLTE_CBSEGM_H
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