公开(公告)号：US11742987B2

公开(公告)日：2023-08-29

申请号：US17406354

申请日：2021-08-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Liang Ma ,  Xin Zeng ,  Yuejun Wei ,  Carmela Cozzo

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

CPC classification number: H04L1/0067 ,  H03M13/11 ,  H03M13/616 ,  H03M13/635 ,  H03M13/6393 ,  H04L1/0013

Abstract: This application discloses a method and an apparatus for processing information, a communications device, and a communications system. The communications device is configured to obtain a starting position of an output bit sequence in a coded block in a circular buffer, and determine the output bit sequence in the coded block based on a length of the output bit sequence and the starting position. A value of the starting position is one of {p0, p1, p2, . . . , pkmax−1}, where 0≤pk

公开(公告)号：US11588576B2

公开(公告)日：2023-02-21

申请号：US17389004

申请日：2021-07-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liang Ma ,  Xin Zeng ,  Chen Zheng ,  Yuejun Wei

IPC: H04L1/00 ,  H04W72/04 ,  H03M13/11 ,  H03M13/25 ,  H03M13/00

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 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.

公开(公告)号：US11463108B2

公开(公告)日：2022-10-04

申请号：US16691281

申请日：2019-11-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chen Zheng ,  Yuejun Wei ,  Liang Ma ,  Xiaojian Liu ,  Xin Zeng

IPC: H03M13/00 ,  H03M13/11 ,  H03M13/27

Abstract: This application discloses an information processing method and apparatus, a communications device, and a communications system. The method includes: encoding an input sequence by using a low-density parity-check (LDPC) matrix, to obtain a bit sequence D, where a base matrix of the LDPC matrix is represented as a matrix of m rows and n columns, each column corresponds to a group of Z consecutive bits in the bit sequence D, and n and Z are both integers greater than 0; and obtaining an output bit sequence based on a bit sequence V, where the bit sequence V is obtained by permuting two groups of bits corresponding to at least two parity check columns in the bit sequence D.

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

IPC: H04L1/18 ,  H04L1/00 ,  H04L5/00 ,  H04W72/04

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.

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

IPC: G11C16/26 ,  G06F11/10 ,  G11C16/04 ,  H03M13/39 ,  H03M13/11 ,  H03M13/27

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.

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

IPC: H04L1/00 ,  H04W72/04 ,  H03M13/11 ,  H03M13/25 ,  H03M13/00

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.

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

IPC: H04L1/00 ,  H04L1/18

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.

公开(公告)号：US10826651B2

公开(公告)日：2020-11-03

申请号：US16183187

申请日：2018-11-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liang Ma ,  Yuejun Wei

IPC: H04L1/00 ,  H03M13/13 ,  H04L1/08 ,  H04L1/18 ,  H03M13/35

Abstract: This application provides a data sending method, a data receiving method, a sending device, and a receiving device. The data sending method includes: sending a 1st polar-coded code word, where the 1st code word includes n 1st information bits carrying user data; and sending a 2nd polar-coded code word after sending the 1st code word is completed, where the 2nd code word includes p 2nd information bits carrying user data, and each 2nd information bit carries same user data as one uniquely corresponding 1st retransmission bit. According to the data sending method, the data receiving method, an apparatus, a device, and a system provided in this application, decoding performance of the code words can be improved.

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

IPC: H03M13/11 ,  H03M13/00

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

公开(公告)号：USD896770S1

公开(公告)日：2020-09-22

申请号：US29683389

申请日：2019-03-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Designer： Liang Ma ,  Bin Xie ,  Guoping Wu