公开(公告)号：US10784893B2

公开(公告)日：2020-09-22

申请号：US16525076

申请日：2019-07-29

Applicant: Huawei Technologies Co., Ltd.

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

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

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：US10659195B2

公开(公告)日：2020-05-19

申请号：US16262921

申请日：2019-01-31

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 information bits. The communication devices transforms the input sequence into one or more code blocks. The communication device encodes each of the code blocks individually, 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 and may include one or more cyclic redundancy check (CRC) bits corresponding to the segment of the input sequence. The encoded code blocks can meet various channel coding requirements.

公开(公告)号：US10425191B2

公开(公告)日：2019-09-24

申请号：US16234138

申请日：2018-12-27

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：US10419158B2

公开(公告)日：2019-09-17

申请号：US16196824

申请日：2018-11-20

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 of 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 an output sequence of rate matching 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：US20190132097A1

公开(公告)日：2019-05-02

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: H04L5/00

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.