公开(公告)号：US20180103143A1

公开(公告)日：2018-04-12

申请号：US15835821

申请日：2017-12-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuejun WEI ,  Xin TANG

IPC: H04M3/22 ,  H04L12/26 ,  H04W24/08 ,  H04W24/10 ,  H04L29/06

CPC classification number: H04M3/2236 ,  H04L43/0847 ,  H04L65/80 ,  H04W24/02 ,  H04W24/08 ,  H04W24/10

Abstract: Embodiments of the present invention disclose a voice quality assessment method and apparatus. The method includes: obtaining a first transmission error code parameter and a second transmission error code parameter, where the first transmission error code parameter is a transmission error code parameter of an uplink channel of first user equipment, and the second transmission error code parameter is a transmission error code parameter of a downlink channel of second user equipment; and generating an end-to-end voice quality index between the first user equipment and the second user equipment according to the first transmission error code parameter and the second transmission error code parameter.

公开(公告)号：US20230115181A1

公开(公告)日：2023-04-13

申请号：US18062235

申请日：2022-12-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qufang HUANG ,  Kedi WU ,  Nijun LI ,  Yuejun WEI

IPC: H04L47/24 ,  H04W28/02

Abstract: A data transmission method and an apparatus. A transmission priority of a data packet may be changed so that the data packet has an opportunity to continue to be transmitted. when the data packet just arrives at a PDCP layer of a communication apparatus, and the priority of the data packet is an initial priority. If the data packet is not sent or is not successfully sent after a decoding moment of a receiver is exceeded, compared with a manner of directly discarding the data packet, in this manner, the priority of the data packet may be changed, so that the data packet has the opportunity to continue to be transmitted. This helps improve a compression rate and a decoding effect, to improve user experience.

公开(公告)号：US20230093435A1

公开(公告)日：2023-03-23

申请号：US17994043

申请日：2022-11-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qufang HUANG ,  Jingwang MA ,  Yuejun WEI ,  Nijun LI

IPC: H04L65/80 ,  H04L65/60

Abstract: A communication method includes receiving, by a first communication apparatus, indication information from a second communication apparatus, and determining, by the first communication apparatus, a first quality of service (QoS) of the extended reality (XR) service based on the at least one piece of QoS of an XR service. The first communication apparatus is a core network device or an access network device. The indication information is useable to indicate at least one piece of QoS of the XR service. The XR device receives data of the XR service or sends data of the XR service by a terminal device. The second communication apparatus is an XR server or a chip in the XR server.

公开(公告)号：US20220352903A1

公开(公告)日：2022-11-03

申请号：US17742183

申请日：2022-05-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chen ZHENG ,  Liang MA ,  Xiaojian LIU ,  Yuejun WEI ,  Xin ZENG

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

Abstract: This application relates to communicating information between communication devices. A channel coding method is disclosed. A communication device obtains an input sequence of K bits. The communication device encodes the input sequence using a low density parity check (LDPC) matrix H, to obtain an encoded sequence. The LDPC matrix H is determined according to a base matrix and a lifting factor Z. The base matrix includes m rows and n columns, m is greater than or equal to 5, and n is greater than or equal to 27. The lifting factor Z satisfies a relationship of 22*Z≥K. According to the encoding method provided in the embodiments, information bit sequences of a plurality of lengths can be encoded for transmission between the communication devices.

公开(公告)号：US20210359786A1

公开(公告)日：2021-11-18

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：US20210168593A1

公开(公告)日：2021-06-03

申请号：US17171148

申请日：2021-02-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuchen CHEN ,  Yuejun WEI ,  Weiqiang YANG ,  Liang MA

IPC: H04W8/26 ,  H04W4/02

Abstract: A method includes: obtaining, by a first network element, first information that carries location information of a first terminal device, determining an identifier set based on the first information, where the identifier set includes an identifier of the first terminal device, communication information of the first terminal device can be obtained based on the identifier of the first terminal device; sending, by the first network element, a request to a second network element based on each identifier in the identifier set, to determine location information of a terminal device corresponding to the identifier, so that the first network element can obtain location information of the terminal device corresponding to each identifier in the identifier set; and comparing the location information of the first terminal device with the location information of the terminal device corresponding to each identifier in the identifier set to obtain the identifier of the first terminal device.

公开(公告)号：US20200280389A1

公开(公告)日：2020-09-03

申请号：US16875766

申请日：2020-05-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liang MA ,  Xin ZENG ,  Yuejun WEI

IPC: H04L1/00 ,  H04W72/04 ,  H04L27/18 ,  H04L27/34

Abstract: Embodiments of this application provide an information processing method and a wireless transmission device. The method includes: obtaining, by a wireless transmission device, a target modulation and coding scheme MCS level; determining, by the wireless transmission device based on a correspondence among MCS levels, modulation schemes, and transport block parameters, a target modulation scheme and a target transport block parameter that correspond to the target MCS level; and performing, by the wireless transmission device, low-density parity-check code LDPC coding or decoding on a transport block based on the target modulation scheme and the target transport block parameter. According to the foregoing technical solution, a wireless transmission device in a system in which LDPC coding is used may perform LDPC coding or decoding on a transport block.

公开(公告)号：US20200091934A1

公开(公告)日：2020-03-19

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: H03M13/11 ,  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：US20190393985A1

公开(公告)日：2019-12-26

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

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：US20190393896A1

公开(公告)日：2019-12-26

申请号：US16563396

申请日：2019-09-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Liang MA ,  Xiaojian LIU ,  Chen ZHENG ,  Yuejun WEI ,  Xin ZENG

IPC: H03M13/11

Abstract: This application provides a data processing method, a data processing apparatus, and a communications device. The data processing method includes: coding a first bit sequence, to obtain a second bit sequence, where the first bit sequence includes a first information bit and a first padding bit, and the second bit sequence includes a second information bit and a redundant bit; and storing the second bit sequence in a circular buffer.