公开(公告)号：US11477170B2

公开(公告)日：2022-10-18

申请号：US16691299

申请日：2019-11-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kedi Wu ,  Yuejun Wei ,  Xu Wang

IPC: H04L9/40 ,  H04L1/16 ,  H04L9/08 ,  H04L9/14 ,  H04L27/00 ,  H04L69/22 ,  H04W80/06

Abstract: This disclosure provides a decoding method and apparatus in the communications field. The method includes: extracting at least one piece of prior information from at least one first transport block that has been successfully decoded, and assembling the at least one piece of prior information into a prior information set, where one piece of prior information includes header information of a transmission protocol layer of one first transport block; when a to-be-decoded second transport block sent by a transmit end is received, selecting first prior information from the prior information set, where the second transport block is a transport block obtained by the transmit end by coding a third transport block; and decoding the second transport block based on the first prior information and first demodulation information of the second transport block, to obtain the third transport block.

公开(公告)号：US11469864B2

公开(公告)日：2022-10-11

申请号：US17114171

申请日：2020-12-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Nijun Li ,  Yuejun Wei ,  Weiqiang Yang ,  Ming Li

IPC: H04L1/22 ,  H04L1/16 ,  H04W28/06 ,  H04W80/02

Abstract: This application provides a data transmission method and apparatus. The method includes: obtaining significant bits in an Nth data frame, where N is an integer greater than or equal to 1, a quantity of the significant bits in the Nth data frame is smaller than a quantity of bits in the Nth data frame, and remaining bits other than the significant bits in the Nth data frame are insignificant bits in the Nth data frame; and sending the significant bits in the Nth data frame, and skipping sending the insignificant bits in the Nth data frame. According to the application, on a premise of ensuring voice intelligibility, a transmit end apparatus transmits only the significant bits, to minimize a data transmission amount, thereby improving transmission reliability and coverage.

公开(公告)号：US11128401B2

公开(公告)日：2021-09-21

申请号：US16529438

申请日：2019-08-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

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

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：US11070316B2

公开(公告)日：2021-07-20

申请号：US16563545

申请日：2019-09-06

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H03M13/00 ,  H04L1/00 ,  H04L1/18 ,  H03M13/11

Abstract: An information processing method, an apparatus, a communications device, and a communications system are provided. The communications device is configured to: obtain a starting position in a buffer sequence W for an output bit sequence, and determine the output bit sequence from the buffer sequence W based on the starting position, where a value of the starting position is one element in {p0, p1, p2, . . . , pkmax−1}, 0≤k

公开(公告)号：US10985868B2

公开(公告)日：2021-04-20

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：US10944427B2

公开(公告)日：2021-03-09

申请号：US16436912

申请日：2019-06-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Liang Ma ,  Yuejun Wei

IPC: H03M13/11 ,  H03M13/09 ,  H03M13/37 ,  H04L1/00

Abstract: A data transmission method, a sending device, and a receiving device are provided. A sending device obtains information data, encodes the information data by using a quasi-cyclic low-density parity-check (LDPC) code matrix, modulates the encoded data to obtain first data, and sends the first data. A receiving device obtains second data, demodulates the second data to obtain to-be-decoded data, and decodes the to-be-decoded data by using a block matrix in an LDPC code matrix, where the block matrix is a submatrix in the quasi-cyclic LDPC matrix, and in the quasi-cyclic LDPC matrix, a row weight of a row (H−1) is greater than or equal to a row weight of a row H, or a row weight of a row (H−1) is less than or equal to a row weight of a row H. In this way, decoding efficiency can be improved.

公开(公告)号：US10693609B2

公开(公告)日：2020-06-23

申请号：US16231946

申请日：2018-12-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: G06F15/16 ,  H04L5/00 ,  H04L1/18

Abstract: Embodiments of this application relate to communication technologies and provide a method for transmitting or retransmitting data in a transport block. The transport block includes one or more code block groups, and each code block group includes one or more code blocks. A data processing device determines a code block group in the transport block that needs to be transmitted. Each code block in the code block group is processed by the data processing device to obtain a bit sequence. The data processing device transmits one or more bit sequences obtained by processing one or more code blocks in the code block group. The method and the apparatus provided in this application help reduce waste of air interface resources.

公开(公告)号：US20200021310A1

公开(公告)日：2020-01-16

申请号：US16580398

申请日：2019-09-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H03M13/15 ,  H03M13/11

Abstract: Embodiments of the present invention disclose an information processing method and apparatus, and a device. The method includes: if Rreal is greater than or equal to Rmin, determining, based on a maximum code block length Kmax of an LDPC (low-density parity-check code) code, a quantity C of code blocks into which a transport block is to be segmented, where Rreal is a largest one among an encoding code rate of the transport block, a code rate limit of the transport block, and a minimum code rate of the LDPC code, and Rmin is a minimum code rate corresponding to the maximum code block length of the LDPC code, or a larger one between a minimum code rate corresponding to the maximum code block length of the LDPC code and a code rate limit of the maximum code block length of the LDPC code.

公开(公告)号：US11770135B2

公开(公告)日：2023-09-26

申请号：US17888198

申请日：2022-08-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

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

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.

公开(公告)号：US11438099B2

公开(公告)日：2022-09-06

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

IPC: H04L1/00 ,  H03M13/00 ,  H03M13/09 ,  H03M13/11 ,  H04L1/18

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.