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公开(公告)号：US11239957B2
公开(公告)日：2022-02-01
申请号：US16665750
申请日：2019-10-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Liang Ma , Chen Zheng , Xiaojian Liu , Yuejun Wei
Abstract: This application provides a data processing method and a data processing apparatus. The data processing method includes: determining C code blocks, where C is a positive integer; and dividing the C code blocks into K code block groups, where an absolute value ΔC of a difference between quantities of code blocks included in any two of the K code block groups is less than or equal to a first threshold, and K is a positive integer. The data processing method and the data processing apparatus provided in this application help lower a bit error rate.
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公开(公告)号：US11133832B2
公开(公告)日：2021-09-28
申请号：US16531956
申请日：2019-08-05
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Liang Ma , Chen Zheng , Xin Zeng , Yuejun Wei
Abstract: Embodiments of this application disclose a data processing method and a data processing device. The method includes: obtaining a first to-be-processed bit sequence, where the first to-be-processed bit sequence is a transport block or a code block generated by performing code block segmentation on a transport block; encoding the first to-be-processed bit sequence to obtain a first encoded bit sequence; storing all or at least some bits of the first encoded bit sequence into a circular buffer; and outputting a first output bit sequence from the bits stored in the circular buffer. According to the method and the device that are provided in this application, rate matching can be implemented for a sequence generated through LDPC encoding.
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公开(公告)号：US11101927B2
公开(公告)日：2021-08-24
申请号：US16673613
申请日：2019-11-04
Applicant: Huawei Technologies Co., Ltd.
Inventor： Liang Ma , Xin Zeng , Chen Zheng , Yuejun Wei
Abstract: This application provides a data transmission method, a base station, and a terminal device. The method includes: determining, by a base station, a target base graph in N Raptor-like low-density parity-check (LDPC) base graphs; and sending, by the base station, indication information to a terminal device, where the indication information is used to indicate the terminal device to use the target base graph to perform LDPC encoding and decoding. Based on the foregoing technical solution, the base station may determine a target base graph in a plurality of Raptor-like LDPC base graphs that may be used to perform LDPC encoding and decoding, and indicate the target base graph to the terminal device. Further, for one code rate or one code length, the base station may select different base graphs as required.
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公开(公告)号：US10951352B2
公开(公告)日：2021-03-16
申请号：US16562389
申请日：2019-09-05
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chen Zheng , Liang Ma , Yuejun Wei , Xin Zeng
Abstract: Embodiments of this application provide a communications method and apparatus. The method includes: obtaining an input sequence for rate matching, wherein the input sequence is a retransmission sequence corresponding to a transport block, the input sequence comprises M code block groups, a value of M is less than a quantity of code block groups obtained after the transport block is segmented, and the M code block groups comprise Ct code blocks; and performing rate matching on the Ct code blocks, wherein a length of a rate matching output sequence of of each of the Ct code blocks satisfies the following conditions: when j≤Ct−γ−1, E=NL·Qm·└G′/Ct┘; when j>Ct−γ−1, E=NL·Qm·┌G′/Ct┐. The method may be applicable to a system in which transmission is performed based on a code block group, and resources are fully used as many as possible, thereby improving performance.
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公开(公告)号：US10826530B2
公开(公告)日：2020-11-03
申请号：US16279551
申请日：2019-02-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Liang Ma , Yuejun Wei , Chen Zheng , Xin Zeng
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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Patent Agency Ranking
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：US09529650B2
公开(公告)日：2016-12-27
申请号：US15059380
申请日：2016-03-03
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chen Zheng , Ruihua Hou , Jianfeng Zhan , Lixin Zhang
CPC classification number: G06F9/545 , G06F9/468 , G06F12/1027 , G06F13/24 , G06F2212/681
Abstract: A method and an apparatus for accessing a hardware resource are provided. The method includes configuring permission for one or more privileged instructions that are used for hardware access such that when the privileged instructions are used by a user mode application program, the application program can access a hardware resource without trapping into a kernel, and executing the privileged instructions that are encapsulated in the privileged application programming interface (API) that is called at the code level by the application program , and a privileged instruction for direct access to a hardware resource is set and encapsulated into an API, which is deployed in user space in order to reduce system overheads for accessing the hardware resource and improve processing efficiency.
Abstract translation: 提供了一种用于访问硬件资源的方法和装置。 该方法包括配置用于硬件访问的一个或多个特权指令的许可，使得当用户模式应用程序使用特权指令时，应用程序可以访问硬件资源而不会陷入内核，并执行特权 封装在由应用程序在代码级调用的特权应用程序编程接口（API）中的指令以及用于直接访问硬件资源的特权指令被设置并封装到部署在用户空间中的API 以减少用于访问硬件资源的系统开销并提高处理效率。
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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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19.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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20.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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