公开(公告)号：US10574264B2

公开(公告)日：2020-02-25

申请号：US15124785

申请日：2014-08-26

Applicant: ZTE Corporation

Inventor： Liguang Li ,  Jun Xu ,  Zhifeng Yuan ,  Jin Xu ,  Kaibo Tian ,  Jun Zhang ,  Haiming Wang ,  Shiwen He

IPC: H03M13/00 ,  H03M13/11

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.

公开(公告)号：US12052095B2

公开(公告)日：2024-07-30

申请号：US17971006

申请日：2022-10-21

Applicant: ZTE Corporation

Inventor： Liguang Li ,  Jun Xu ,  Zhisong Zuo ,  Hao Wu ,  Yu Xin ,  Luanjian Bian ,  Jin Xu

IPC: H04L1/00 ,  H04W28/06

CPC classification number: H04L1/0002 ,  H04L1/0015 ,  H04W28/06 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0016

Abstract: Provided are a data communication processing method and device. The method includes: acquiring a modulation order and a target code rate; calculating an intermediate number Ninfo of information bits at least according to a total number of resource elements, the modulation order and the target code rate; quantizing the intermediate number Ninfo of the information bits to obtain the quantized intermediate number N′info; determining a transport block size (TBS) according to the quantized intermediate number N′info.

公开(公告)号：US11843394B2

公开(公告)日：2023-12-12

申请号：US17843677

申请日：2022-06-17

Applicant: ZTE Corporation

Inventor： Liguang Li ,  Jun Xu ,  Jin Xu

IPC: H03M13/00 ,  H03M13/11

CPC classification number: H03M13/116 ,  H03M13/616

Abstract: Provided are a processing method and device for quasi-cyclic low density parity check (LDPC) coding. The processing method for LDPC coding includes: determining, according to a data feature of an information bit sequence to be encoded, a processing strategy for the quasi-cyclic LDPC coding according to a data feature of an information bit sequence to be encoded; and performing, according to the processing strategy and based on a base matrix and a lifting size, the quasi-cyclic LDPC coding and rate matching output on the information bit sequence according to the processing strategy, a base matrix and a lifting value. This technical solution is able to improve adaptability and flexibility of the quasi-cyclic LDPC coding.

公开(公告)号：US11791933B2

公开(公告)日：2023-10-17

申请号：US17588056

申请日：2022-01-28

Applicant: ZTE Corporation

Inventor： Liguang Li ,  Jun Xu ,  Jin Xu

IPC: H04L1/00 ,  H04L1/1812

CPC classification number: H04L1/0057 ,  H04L1/0013 ,  H04L1/0041 ,  H04L1/0071 ,  H04L1/1819

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.

公开(公告)号：US11683051B2

公开(公告)日：2023-06-20

申请号：US17493612

申请日：2021-10-04

Applicant: ZTE Corporation

Inventor： Liguang Li ,  Jun Xu ,  Jin Xu

IPC: H03M13/00 ,  H03M13/11 ,  H03M13/29 ,  H03M13/09

CPC classification number: H03M13/1148 ,  H03M13/00 ,  H03M13/11 ,  H03M13/114 ,  H03M13/116 ,  H03M13/1137 ,  H03M13/1185 ,  H03M13/2906 ,  H03M13/616 ,  H03M13/6356 ,  H03M13/6516 ,  H03M13/09

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 expansion 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 expansion 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.

公开(公告)号：US20220416945A1

公开(公告)日：2022-12-29

申请号：US17929299

申请日：2022-09-01

Applicant: ZTE Corporation

Inventor： Jin Xu ,  Jun Xu ,  Liguang Li

IPC: H04L1/00 ,  H04L5/00

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.

公开(公告)号：US11522633B2

公开(公告)日：2022-12-06

申请号：US16989761

申请日：2020-08-10

Applicant: ZTE Corporation

Inventor： Liguang Li ,  Jun Xu ,  Zhisong Zuo ,  Hao Wu ,  Yu Xin ,  Luanjian Bian ,  Jin Xu

IPC: H04L1/00 ,  H04W28/06

Abstract: Provided are a data communication processing method and device. The method includes: acquiring a modulation order and a target code rate; calculating an intermediate number Ninfo of information bits at least according to a total number of resource elements, the modulation order and the target code rate; quantizing the intermediate number Ninfo of the information bits to obtain the quantized intermediate number N′info; determining a transport block size (TBS) according to the quantized intermediate number N′info.

公开(公告)号：US20220038115A1

公开(公告)日：2022-02-03

申请号：US17493612

申请日：2021-10-04

Applicant: ZTE Corporation

Inventor： Liguang Li ,  Jun Xu ,  Jin Xu

IPC: H03M13/11 ,  H03M13/00 ,  H03M13/29

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 expansion 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 expansion 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.

公开(公告)号：US11239946B2

公开(公告)日：2022-02-01

申请号：US16787009

申请日：2020-02-10

Applicant: ZTE Corporation

Inventor： Liguang Li ,  Jun Xu ,  Jin Xu

IPC: H04L1/00 ,  H04L1/18

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.

公开(公告)号：US11133826B2

公开(公告)日：2021-09-28

申请号：US16338333

申请日：2017-09-30

Applicant: ZTE CORPORATION

Inventor： Liguang Li ,  Jun Xu ,  Jin Xu

IPC: H03M13/00 ,  H03M13/11 ,  H03M13/03 ,  H04L1/00

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).