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公开(公告)号：US20200252084A1
公开(公告)日：2020-08-06
申请号：US16830968
申请日：2020-03-26
Applicant: ZTE CORPORATION
Inventor： Mengzhu Chen , Jin Xu , Jun Xu
Abstract: A system and method for polar code coding with information bits placed in particular bit indexes are disclosed herein. In one embodiment, a method for channel coding includes: associating, by a polar code encoder, a first bit sequence with first bit indexes of a polar code input; associating, by the polar code encoder, a second bit sequence with second bit indexes, wherein the first bit indexes have a higher reliability than the second bit indexes; and encoding, by the polar code encoder, both the first bit sequence and the second bit sequence using a generator matrix to generate encoded bits.
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32.发明授权公开(公告)号：US10320419B2
公开(公告)日：2019-06-11
申请号：US15120126
申请日：2014-08-25
Applicant: ZTE CORPORATION
Inventor： Jun Xu , Liguang Li , Zhifeng Yuan , Jin Xu , Kaibo Tian
Abstract: An encoding method, decoding method, encoding device and decoding device for structured LDPC codes. The method includes: determining a basic matrix used for encoding, which includes K0 up-and-down adjacent pairs; and according to the basic matrix and an expansion factor corresponding to the basic matrix, performing an LDPC encoding operation of obtaining a codeword of Nb×z bits according to source data of (Nb−Mb)×z bits, herein z is the expansion factor, and z is a positive integer which is greater than or equal to 1. The provided technical solution is applicable to the encoding and decoding of the structured LDPC, thereby realizing the encoding and decoding of LDPC at the high pipeline speed.
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公开(公告)号：US09998319B2
公开(公告)日：2018-06-12
申请号：US14890931
申请日：2014-02-24
Applicant: ZTE CORPORATION
Inventor： Shuqiang Xia , Jing Shi , Jin Xu , Jun Xu , Peng Hao , Chunli Liang , Bo Dai
CPC classification number: H04L27/3483 , H04L1/1861 , H04L5/0053 , H04L27/183 , H04L27/34 , H04L27/3488 , H04W72/042
Abstract: Disclosed are a method for transferring control information, a transmitting device and a receiving device, the method includes that: a transmitting end orderly selects an element yn or two elements y2m−1, y2m, from a sequence Y to be modulated corresponding to control information B newly added, then it selects pairing elements x2p−1, x2p from a sequence X to be modulated corresponding to related control information A, and groups yn or y2m−1, y2m and the x2p−1, x2p into an element group (x2p−1, x2p, yn) or (x2p−1, x2p, y2m−1, y2m) and maps (x2p−1, x2p, yn) or (x2p−1, x2p, y2m−1, y2m) as specified constellation points of a specified constellation diagram, and takes the constellation points as modulation symbols; it takes each two elements in the elements of the sequence X which are not used for pairing as an element group to perform QPSK modulation, modulating into QPSK modulation symbols; and it maps the constellation points and the QPSK modulation symbols to part of or all resources occupied by a corresponding control channel to be transmitted.
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公开(公告)号：US20170222660A1
公开(公告)日：2017-08-03
申请号：US15124785
申请日：2014-08-26
Applicant: ZTE Corporation
Inventor： Liguang Li , Jun Xu , Zhifeng Yuan , Jin Xu , Kailbo Tian , Jun Zhang , Haiming Wang , Shiwen He
Abstract: The disclosure discloses a method for supporting low bit rate coding. A source data packet to be coded is repeated for i times, and the data packet which is repeated for i times is coded. The disclosure also discloses an apparatus for supporting low bit rate coding and a computer storage medium.
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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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Patent Agency Ranking
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：US11909417B2
公开(公告)日：2024-02-20
申请号：US17825567
申请日：2022-05-26
Applicant: ZTE CORPORATION
Inventor： Saijin Xie , Jun Xu , Jin Xu , Mengzhu Chen
CPC classification number: H03M13/136 , H03M13/091 , H04L1/0057 , H04W72/23
Abstract: A data processing method and apparatus. The data process method includes: determining, by a transmitting node, a code block length N0 for encoding an information bit sequence to be transmitted according to a data characteristic for representing the information bit sequence to be transmitted and a preset parameter corresponding to the data characteristic; performing, by the transmitting node, polar encoding on the information bit sequence to be transmitted according to the code block length N0; and transmitting, by the transmitting node, a code block obtained through the polar encoding to a receiving node.
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公开(公告)号：US11831334B2
公开(公告)日：2023-11-28
申请号：US17942885
申请日：2022-09-12
Applicant: ZTE CORPORATION
Inventor： Mengzhu Chen , Jin Xu , Jun Xu
CPC classification number: H03M13/13 , H03M13/616
Abstract: A system and method for polar code coding with information bits placed in particular bit indexes are disclosed herein. In one embodiment, a method for channel coding includes: associating, by a polar code encoder, a first bit sequence with first bit indexes of a polar code input; associating, by the polar code encoder, a second bit sequence with second bit indexes, wherein the first bit indexes have a higher reliability than the second bit indexes; and encoding, by the polar code encoder, both the first bit sequence and the second bit sequence using a generator matrix to generate encoded bits.
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公开(公告)号：US20220399906A1
公开(公告)日：2022-12-15
申请号：US17664491
申请日：2022-05-23
Applicant: ZTE Corporation
Inventor： Mengzhu Chen , Jin Xu , Jun Xu
Abstract: Provided is a rate matching method and device for a Polar code. The method includes: concatenating K information bits and (N−K) frozen bits to generate a bit sequence of N bits, and encoding the bit sequence of N bits by means of a Polar code encoder with a generator matrix of size N×N to generate an initial bit sequence {S0, S1, . . . , SN−1} of N bits, where K and N are both positive integers and K is less than or equal to N; dividing a circular buffer into q parts, selecting bits from the initial bit sequence {S0, S1, . . . , SN−1} in a non-repeated manner, and writing the bits into the q parts of the circular buffer according to a predefined rule, where q=1, 2, 3 or 4; and sequentially selecting a bit sequence of a specified length from a predefined starting position in a bit sequence in the circular buffer and taking the bit sequence of the specified length as a bit sequence to be transmitted.
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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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