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公开(公告)号：US20190068224A1
公开(公告)日：2019-02-28
申请号：US16171314
申请日：2018-10-25
Applicant: ZTE Corporation
Inventor： Liguang Li , Jun Xu , Jin Xu
Abstract: The embodiments of the present disclosure provide a method and an apparatus for data processing with structured LDPC codes. The method includes: obtaining a code block size for structured LDPC coding; determining a coding spread factor z based on at least one of the code block size, a parameter kb of a basic check matrix, a positive integer value p or the basic check matrix having mb rows and nb columns; and encoding a data sequence to be encoded, or decoding a data sequence to be decoded, based on the basic check matrix and the coding spread factor. The present disclosure is capable of solving the problem in the related art associated with low flexibility in data processing with LDPC coding and improving the flexibility in data processing with LDPC coding.
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公开(公告)号：US12289676B2
公开(公告)日：2025-04-29
申请号：US17245292
申请日：2021-04-30
Applicant: ZTE Corporation
Inventor： Liguang Li , Jun Xu , Mengzhu Chen , Xiaoying Ma , Jin Xu
IPC: H04W52/02
Abstract: Methods, systems, and devices for power saving schemes in a wireless communication are described. A wireless communication method is provided to include obtaining, by a network device, one or more parameters of a user device, determining, by the network device, whether the one or more parameters satisfy a predetermined condition, and configuring the user device in a power saving mode based on the one or more parameters.
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公开(公告)号：US12218686B2
公开(公告)日：2025-02-04
申请号：US18138702
申请日：2023-04-24
Applicant: ZTE Corporation
Inventor： Liguang Li , Jun Xu , Jin Xu
Abstract: A quasi-cyclic LDPC coding and decoding method and apparatus, and an LDPC coder and decoder. The method includes: determining from a mother basis matrix set a basis matrix used for low density parity check (LDPC) coding (S202), wherein the basis matrix used for LDPC coding includes a first-type element and a second-type element, the first-type element corresponds to an all-zero square matrix, the second-type element corresponds to a matrix obtained by means of a cyclic shift of a unit matrix according to a value of the second-type element, and dimensions of the all-zero square matrix and the unit matrix are equal; and performing LDPC coding on an information sequence to be coded according to the basis matrix used for LDPC coding, and/or performing LDPC decoding on a data sequence to be decoded according to the basis matrix used for LDPC coding (S204).
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公开(公告)号：US20240372771A1
公开(公告)日：2024-11-07
申请号：US18566060
申请日：2022-05-09
Applicant: ZTE Corporation
Inventor： Chulong Liang , Jin Xu , Liguang Li , Guanghui Yu , Jian Kang , Qiang Fu
Abstract: Disclosed are a data transmission method, a communication node, and a non-transitory computer readable storage medium. The method is applied to a first communication node and may include: acquiring a first bit sequence f0, f1, f2, . . . , fE−1; mapping every Qm bits in the first bit sequence f0, f1, f2, . . . , fE−1 to one complex-valued modulation symbol based on a Regular Amplitude Phase Shift Keying (RAPSK) constellation to obtain a symbol sequence x0, x1, x2, . . . , xE/Qm-1, wherein E denotes a length of the first bit sequence and is a positive integer, Qm denotes a modulation order of RAPSK modulation, and the RAPSK constellation has 2Qm constellation points; and transmitting the symbol sequence x0, x1, x2, . . . , xE/Qm−1 to a second communication node.
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公开(公告)号：US11477065B2
公开(公告)日：2022-10-18
申请号：US16921875
申请日：2020-07-06
Applicant: ZTE Corporation
Inventor： Jin Xu , Jun Xu , Liguang Li
Abstract: A method and apparatus for code block division are provided. The method may include the following acts. A reference information block length of a code block is determined according to an obtained division related parameter. A maximum information block length is determined according to the reference information block length and a hardware parameter. A Transport Block (TB) having a length greater than the maximum information block length may be divided into two or more code blocks according to the obtained division related parameter, the hardware parameter and the determined maximum information block length. An information length after code block division is less than the determined maximum information block length.
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Patent Agency Ranking
公开(公告)号：US20220069843A1
公开(公告)日：2022-03-03
申请号：US17510216
申请日：2021-10-25
Applicant: ZTE Corporation
Inventor： Liguang Li , Jun XU , Jin XU
Abstract: Provided is a design method and apparatus for quasi-cyclic low-density parity-check (LDPC) encoding. The method includes: performing LDPC encoding on a K-bit information sequence to be encoded according to a parity check matrix of a quasi-cyclic LDPC code to obtain an N-bit LDPC encoded sequence, where the parity check matrix is determined according to a basic matrix and a lifting size Z, and the basic matrix is determined according to the lifting size Z and a coefficient matrix, where K is a positive integer, N is an integer greater than K, and Z is a positive integer.
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公开(公告)号：US11251813B2
公开(公告)日：2022-02-15
申请号：US16861990
申请日：2020-04-29
Applicant: ZTE CORPORATION
Inventor： Liguang Li , Jun Xu , Jin Xu
Abstract: A system and method for allocating network resources are disclosed herein. In one embodiment, the system and method are configured to perform: determining a redundancy version and a new data indicator indicated by control information; determining a base graph of a low density parity check code based on which of a plurality of predefined conditions the redundancy version, and/or the new data indicator satisfy; and sending a signal comprising information bits that are encoded based on the determined base graph of the low density parity check code.
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公开(公告)号：US20210288667A1
公开(公告)日：2021-09-16
申请号：US16325030
申请日：2017-08-01
Applicant: ZTE CORPORATION
Inventor： Jin Xu , Jun Xu , Liguang Li
Abstract: Provided are an encoding method and device, a decoding method and device, and a storage medium. The encoding method comprises: encoding an initial to-be-encoded bit sequence with a low density parity check code LDPC having a code rate R1, to obtain an encoded first bit sequence, where 0≤R1≤1; linearly combining at least two bit sequence segments in the first bit sequence to obtain a second bit sequence; and cascading the first bit sequence and the second bit sequence to obtain a target bit sequence having a code rate R2, where 0≤R2≤R1≤1.
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公开(公告)号：US20200304235A1
公开(公告)日：2020-09-24
申请号：US16787009
申请日：2020-02-10
Applicant: ZTE Corporation
Inventor： Liguang Li , Jun Xu , Jin Xu
IPC: H04L1/00
Abstract: Provided are a data encoding method and device, a storage medium, and a processor. The method includes: obtaining data to be sent; performing quasi-cyclic low-density parity check (LDPC) encoding on the data to be sent to obtain an LDPC codeword sequence, and interleaving the LDPC codeword sequence to obtain an interleaved LDPC codeword sequence; performing cyclic bit selection on the interleaved LDPC codeword sequence from a starting position to obtain a rate-matched codeword sequence, where the starting position is determined according to a predetermined parameter; and sending the rate-matched codeword sequence. The solution above resolves the problem in the related art of unstable transmission after performing quasi-cyclic LDPC encoding on data to be transmitted, and achieves stable transmission after the quasi-cyclic LDPC encoding.
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公开(公告)号：US10708099B2
公开(公告)日：2020-07-07
申请号：US15566771
申请日：2016-04-06
Applicant: ZTE Corporation
Inventor： Jin Xu , Jun Xu , Liguang Li
Abstract: A method and apparatus for code block division are provided. The method may include the following acts. A reference information block length of a code block is determined according to an obtained division related parameter. A maximum information block length is determined according to the reference information block length and a hardware parameter. A Transport Block (TB) having a length greater than the maximum information block length may be divided into two or more code blocks according to the obtained division related parameter, the hardware parameter and the determined maximum information block length. An information length after code block division is less than the determined maximum information block length.
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