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公开(公告)号：US20200228254A1
公开(公告)日：2020-07-16
申请号：US16833655
申请日：2020-03-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Liang Ma , Carmela Cozzo , Xin Zeng , Yuejun Wei
IPC: H04L1/18
Abstract: This application discloses an information processing method, an apparatus, a communication device, and a communication system. The communication device is configured to determine a redundancy version transmission sequence, where the redundancy version transmission sequence is used to indicate a sending sequence of a plurality of redundancy versions; determine a transmission number; and obtain a redundancy version from a buffer sequence based on the redundancy version transmission sequence and the transmission number and send the redundancy version. The communication device may be applied to a communication system supporting a plurality of redundancy version transmission sequences, for example, a 5th generation (5G) communication system. Because the redundancy version transmission sequence is determined before data transmission, communication efficiency is improved, and HARQ performance is improved.
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公开(公告)号：US20200220657A1
公开(公告)日：2020-07-09
申请号：US16821986
申请日：2020-03-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chen Zheng , Liang Ma , Jie Xiong , Xin Zeng , Xiaojian Liu , Yuejun Wei
Abstract: This application discloses an information processing method. A communication device obtains an input sequence. The input sequence has a quantity B of bits. The communication devices transforms the input sequence into one or more code blocks. The communication device encodes each of the code blocks, to obtain one or more encoded code blocks. Each of the code blocks has a code block length less than or equal to a maximum code block length. Each of the code blocks includes a segment of the input sequence, one or more cyclic redundancy check (CRC) bits corresponding to the segment of the input sequence, and one or more filler bits. The encoded code blocks can meet various channel coding requirements.
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公开(公告)号：US12218680B2
公开(公告)日：2025-02-04
申请号：US18448782
申请日：2023-08-11
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chen Zheng , Liang Ma , Xiaojian Liu , Yuejun Wei , Xin Zeng
Abstract: This application relates to communicating information between communication devices. A channel coding method is disclosed. A communication device obtains an input sequence of K bits. The communication device encodes the input sequence using a low density parity check (LDPC) matrix H, to obtain an encoded sequence. The LDPC matrix H is determined according to a base matrix and a lifting factor Z. The base matrix includes m rows and n columns, m is greater than or equal to 5, and n is greater than or equal to 27. The lifting factor Z satisfies a relationship of 22*Z≥K. According to the encoding method provided in the embodiments, information bit sequences of a plurality of lengths can be encoded for transmission between the communication devices.
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34.发明公开公开(公告)号：US20240056100A1
公开(公告)日：2024-02-15
申请号：US18447915
申请日：2023-08-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Liang Ma , Chen Zheng , Xiaojian Liu , Yuejun Wei , Xin Zeng
CPC classification number: H03M13/1148 , H03M13/616 , H04L1/0057 , H04L1/0076
Abstract: A low density parity check (LDPC) channel encoding method for use in a wireless communications system includes a communication device encoding an input bit sequence by using a LDPC matrix to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. The encoding method can be used in various communications systems including the fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.
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35.发明授权公开(公告)号：US11469776B2
公开(公告)日：2022-10-11
申请号：US17008081
申请日：2020-08-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Liang Ma , Chen Zheng , Xiaojian Liu , Yuejun Wei , Xin Zeng
Abstract: A low density parity check (LDPC) channel encoding method for use in a wireless communications system includes a communication device encoding an input bit sequence by using a LDPC matrix to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. The encoding method can be used in various communications systems including the fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.
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Patent Agency Ranking
公开(公告)号：US11374591B2
公开(公告)日：2022-06-28
申请号：US17161539
申请日：2021-01-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chen Zheng , Liang Ma , Xiaojian Liu , Yuejun Wei , Xin Zeng
Abstract: This application relates to communicating information between communication devices. A channel coding method is disclosed. A communication device obtains an input sequence of K bits. The communication device encodes the input sequence using a low density parity check (LDPC) matrix H, to obtain an encoded sequence. The LDPC matrix H is determined according to a base matrix and a lifting factor Z. The base matrix includes m rows and n columns, m is greater than or equal to 5, and n is greater than or equal to 27. The lifting factor Z satisfies a relationship of 22*Z≥K. According to the encoding method provided in the embodiments, information bit sequences of a plurality of lengths can be encoded for transmission between the communication devices.
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公开(公告)号：US11368241B2
公开(公告)日：2022-06-21
申请号：US16787958
申请日：2020-02-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Liang Ma , Xin Zeng , Chen Zheng , Xiaojian Liu , Yuejun Wei
Abstract: Embodiments of this application disclose a communication method and a communications apparatus. The method includes: determining an encoding matrix type of a first sequence based on a modulation and encoding scheme (MCS) index, where the first sequence is obtained after code block segmentation is performed on a second sequence, a length of the second sequence is related to the MCS index, and a length of the first sequence is less than or equal to a first threshold; and encoding the first sequence based on the encoding matrix associated with the encoding matrix type. According to the application, the encoding matrix type can be properly selected for encoding.
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公开(公告)号：US11329758B2
公开(公告)日：2022-05-10
申请号：US16875766
申请日：2020-05-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Liang Ma , Xin Zeng , Yuejun Wei
Abstract: Embodiments of this application provide an information processing method and a wireless transmission device. The method includes: obtaining, by a wireless transmission device, a target modulation and coding scheme MCS level; determining, by the wireless transmission device based on a correspondence among MCS levels, modulation schemes, and transport block parameters, a target modulation scheme and a target transport block parameter that correspond to the target MCS level; and performing, by the wireless transmission device, low-density parity-check code LDPC coding or decoding on a transport block based on the target modulation scheme and the target transport block parameter. According to the foregoing technical solution, a wireless transmission device in a system in which LDPC coding is used may perform LDPC coding or decoding on a transport block.
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公开(公告)号：US10944508B2
公开(公告)日：2021-03-09
申请号：US16533343
申请日：2019-08-06
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chen Zheng , Liang Ma , Xin Zeng , Xiaojian Liu , Yuejun Wei
Abstract: This application provides a data processing method and a communications device. The data processing method includes: determining, by a first communications device, NCB, based on a size of the circular buffer of the communications device and an information processing capability of a second communications device; and obtaining, by the first communications device, a second encoded bit segment from a first encoded bit segment having a length of NCB. According to the data processing method and the communications device provided in this application, decoding complexity of the communications device can be reduced and communication reliability can be improved.
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公开(公告)号：US10917114B2
公开(公告)日：2021-02-09
申请号：US16433985
申请日：2019-06-06
Applicant: Huawei Technologies Co., Ltd.
Inventor： Liang Ma , Chen Zheng , Jie Xiong , Xin Zeng , Xiaojian Liu , Yuejun Wei
Abstract: This application discloses a data transmission method, a sending device, a receiving device, and a communications system. The sending device is configured to send a first transport block. The sending device obtains a coded bit segment from a first encoded code block. The first encoded code block is obtained after LDPC encoding is performed on a first code block in the first transport block based on a processing capability of the receiving device. The sending device sends the coded bit segment to the receiving device. Because the processing capability of the receiving device is considered, storage overheads of the sending device or the receiving device can be reduced, encoding or decoding complexity can be reduced, and a decoding success rate can be improved.
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