公开(公告)号：US20230171320A1

公开(公告)日：2023-06-01

申请号：US18161234

申请日：2023-01-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Di ZHANG ,  Youyang YU

IPC: H04L67/141

CPC classification number: H04L67/141 ,  H04L12/66

Abstract: A communication method and apparatus includes: An access gateway function network element sends a session establishment request message of a terminal to a session management function network element. The session management function network element sends, to the access gateway function network element, at least one of a session identifier and an address of the terminal that correspond to an established session. The access gateway function network element obtains virtual interface information corresponding to the identifier of the established session. The access gateway function network element further sends the virtual interface information and the at least one of the session identifier and the address of the terminal to the terminal, so that the terminal establishes a first association relationship between the virtual interface information and the at least one of the session identifier and the address of the terminal.

公开(公告)号：US20220377721A1

公开(公告)日：2022-11-24

申请号：US17879567

申请日：2022-08-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Peng GUAN ,  Yi QIN ,  Jianqin LIU ,  Peng JIANG ,  Di ZHANG

IPC: H04W72/04

Abstract: The present disclosure relates to beam configuration methods and apparatus. One example method includes receiving, by a terminal, beam configuration information from a network device, where the beam configuration information is used to instruct the terminal to transmit a signal by using a first beam, and transmitting, by the terminal, the signal by using at least the first beam when a first preset duration starting from a first time point expires, where the first time point is a time point at which the terminal sends an acknowledgement (ACK) message for the beam configuration information to the network device.

公开(公告)号：US20210352753A1

公开(公告)日：2021-11-11

申请号：US17382783

申请日：2021-07-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Di ZHANG

IPC: H04W76/19 ,  H04W72/04 ,  H04L1/00

Abstract: This application provides example communication methods and example communications apparatuses. One example communication method includes sending first information on a first resource, where the first information is used to indicate a link failure. Second information can then be received, where the second information is used to indicate a second resource. Third information can then be sent on the second resource based on the second information, where the third information is used to indicate at least one of a first reference signal or a first cell, and where when channel quality of the first reference signal is greater than or equal to a preset threshold, the link failure occurs in the first cell.

公开(公告)号：US20210067234A1

公开(公告)日：2021-03-04

申请号：US17095506

申请日：2020-11-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Peng GUAN ,  Lei CHEN ,  Shitong YUAN ,  Xi ZHANG ,  Di ZHANG

IPC: H04B7/08 ,  H04W76/19 ,  H04W24/08

Abstract: This application provides a communication method and a communications apparatus. The method includes: in a process in which a terminal device performs beam failure recovery in a first bandwidth, determining, by the terminal device, that an operating bandwidth needs to be switched from the first bandwidth to a second bandwidth; and switching, by the terminal device, from the first bandwidth to the second bandwidth according to a preset policy. According to embodiments of this application, the operating bandwidth can be switched in the beam failure recovery process.

公开(公告)号：US20200280483A1

公开(公告)日：2020-09-03

申请号：US16875551

申请日：2020-05-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Di ZHANG ,  Kunpeng LIU

IPC: H04L12/24 ,  H04W72/04 ,  H04L5/00 ,  H04W16/28

Abstract: This application discloses a signal transmission method, related devices, and a system. The method includes: sending, by a terminal, link reconfiguration request information to a network device at a moment n, where the link reconfiguration request information is used to initiate link reconfiguration; and detecting, by the terminal based on first information, a PDCCH during a first time period after the moment n, where the first information includes QCL information of a first reference signal and a second reference signal, the first reference signal is used to demodulate the PDCCH, and the second reference signal is a reference signal meeting a first threshold.

公开(公告)号：US20190013971A1

公开(公告)日：2019-01-10

申请号：US16131533

申请日：2018-09-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kunpeng LIU ,  Yongxing ZHOU ,  Di ZHANG

IPC: H04L25/02 ,  H04L5/00 ,  H04W24/10 ,  H04B7/0456

Abstract: A channel information reporting method and apparatus and a system are used to improve adaptive performance of a link. A first device includes: a receiving module, configured to receive a reference signal from a second device; a processing module, configured to: perform channel estimation based on the reference signal to obtain a channel matrix, decompose the channel matrix to obtain an unquantized precoding matrix, and generate channel information used to describe the unquantized precoding matrix; and a sending module, configured to send the channel information used to describe the unquantized precoding matrix to the second device. The second device sends the channel information used to describe the unquantized precoding matrix. Therefore, a quantization error is avoided, so that a precoding matrix obtained by the first device is more accurate, thereby effectively improving the adaptive performance of the link.

公开(公告)号：US20220151009A1

公开(公告)日：2022-05-12

申请号：US17586198

申请日：2022-01-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Di ZHANG ,  Kunpeng LIU

IPC: H04W76/19 ,  H04W72/12

Abstract: This application provides example link failure recovery methods and apparatuses. One example method includes sending, by a terminal device, a first media access control-control element (MAC-CE) to a network device, where the first MAC-CE includes information about a cell in which the a first link failure occurs. The terminal device can then start a first timer. The terminal device can then send a first request message when the first timer expires, where the first request message is the first MAC-CE or a second MAC-CE including information about at least one cell in which a link failure occurs.

公开(公告)号：US20220061038A1

公开(公告)日：2022-02-24

申请号：US17520416

申请日：2021-11-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianqin LIU ,  Di ZHANG

IPC: H04W72/04 ,  H04B7/06 ,  H04L5/00 ,  H04W24/10 ,  H04W56/00

Abstract: Example transmission methods and apparatus are described. One example method includes: determining, by a network device, downlink control information (DCI), wherein the DCI includes a first request field. The first request field indicates sending reference signal from the network device to a terminal device, and the first request field triggers the terminal device to report a measurement result of the reference signal to the network device. The measurement result includes channel state information (CSI) and/or beam state information (BSI). The DCI is sent by the network device to the terminal.

公开(公告)号：US20210337584A1

公开(公告)日：2021-10-28

申请号：US17372222

申请日：2021-07-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Di ZHANG ,  Kunpeng LIU

IPC: H04W72/12 ,  H04W72/04 ,  H04W16/28 ,  H04W80/02 ,  H04L5/00

Abstract: A reference signal transmission method is disclosed, the method including: determining at least two first reference signal resources; receiving a first channel based on the at least two first reference signal resources when a scheduling offset is less than or equal to a preset threshold and/or there is no spatial relation parameter information indication field in downlink control information DCI; and demodulating the first channel. When data on at least two reference signal resources needs to be received within a period of time, the method can increase a probability that a terminal device successfully receives the data.

公开(公告)号：US20210076372A1

公开(公告)日：2021-03-11

申请号：US16952962

申请日：2020-11-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Di ZHANG ,  Kunpeng LIU

IPC: H04W72/04 ,  H04W72/08

Abstract: A communication method and a communications apparatus are provided. The method includes: determining a first bandwidth part (BWP) and a second BWP; determining an association relationship between the first BWP and the second BWP; and recovering a link of a first downlink resource of the first BWP based on the association relationship and/or detecting a link failure of a second downlink resource of the second BWP based on the association relationship. The link of the first downlink resource of the first BWP can be accurately recovered based on the association relationship between the two BWPs, thereby ensuring communication reliability.