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公开(公告)号：US11438099B2
公开(公告)日：2022-09-06
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：US11368264B2
公开(公告)日：2022-06-21
申请号：US15930175
申请日：2020-05-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Liang Ma , Chen Zheng , Xin Zeng , Yuejun Wei
Abstract: Embodiments of this application relate to communication technologies and provide a method for transmitting or retransmitting data in a transport block. The transport block includes one or more code block groups, and each code block group includes one or more code blocks. A data processing device determines a code block group in the transport block that needs to be transmitted. Each code block in the code block group is processed by the data processing device to obtain a bit sequence. The data processing device transmits one or more bit sequences obtained by processing one or more code blocks in the code block group. The method and the apparatus provided in this application help reduce waste of air interface resources.
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公开(公告)号：US11317334B2
公开(公告)日：2022-04-26
申请号：US16749815
申请日：2020-01-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xin Zeng
Abstract: Obtaining, by a source cell, a key retention policy of a terminal device, where the source cell and the terminal device use a first key to communicate with each other; determining, by the source cell according to the key retention policy of the terminal device and a key retention policy of the source cell, whether the terminal device and a target cell use the first key to communicate with each other; and sending, by the source cell, a handover request message to the target cell, where the handover request message is used to request to hand over the terminal device from the source cell to the target cell, the handover request message includes first indication information, and the first indication information is used to indicate whether the terminal device and the target cell use the first key to communicate with each other.
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公开(公告)号：US11277231B2
公开(公告)日：2022-03-15
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：US20210242881A1
公开(公告)日：2021-08-05
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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Patent Agency Ranking
公开(公告)号：US11025277B2
公开(公告)日：2021-06-01
申请号：US16563396
申请日：2019-09-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Liang Ma , Xiaojian Liu , Chen Zheng , Yuejun Wei , Xin Zeng
IPC: H03M13/11
Abstract: This application provides a data processing method, a data processing apparatus, and a communications device. The data processing method includes: coding a first bit sequence, to obtain a second bit sequence, where the first bit sequence includes a first information bit and a first padding bit, and the second bit sequence includes a second information bit and a redundant bit; and storing the second bit sequence in a circular buffer.
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公开(公告)号：US10924134B2
公开(公告)日：2021-02-16
申请号：US16584911
申请日：2019-09-26
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：US20200044665A1
公开(公告)日：2020-02-06
申请号：US16584911
申请日：2019-09-26
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：US10432219B2
公开(公告)日：2019-10-01
申请号：US16205186
申请日：2018-11-29
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：US20190181883A1
公开(公告)日：2019-06-13
申请号：US16279551
申请日：2019-02-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Liang Ma , Yuejun Wei , Chen Zheng , Xin Zeng
IPC: H03M13/11
Abstract: The present disclosure relates to a communications field, and discloses a method for generating a base matrix of an LDPC code, an encoding/decoding method, and a device, to resolve a problem that a probability of a decoding error increases because performance of a transformed check matrix cannot be ensured due to a poor puncturing pattern. A specific solution is as follows: A size of a check bit part of a base matrix is determined based on a required minimum bit rate, and the check bit part of the base matrix is determined based on the size of the check bit part and an initial matrix. The initial matrix is a matrix with a size of m×m that has a bidiagonal structure, the check bit part is a k-order transformation matrix Hk obtained after the initial matrix is transformed k times, k meets 2k−1m
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