公开(公告)号：US11805482B2

公开(公告)日：2023-10-31

申请号：US17655445

申请日：2022-03-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoying Xu ,  Qinghai Zeng ,  Qufang Huang ,  Xiaoxiao Zheng

IPC: H04W52/02 ,  H04W76/11 ,  H04L1/00 ,  H04L1/1812 ,  H04L5/00 ,  H04L27/26 ,  H04W28/02 ,  H04W52/36 ,  H04W80/02

CPC classification number: H04W52/0229 ,  H04L1/0003 ,  H04L1/1819 ,  H04L5/0082 ,  H04L27/2607 ,  H04W28/0278 ,  H04W52/365 ,  H04W76/11 ,  H04W80/02

Abstract: Embodiments of this application provide a data transmission method and apparatus. The method includes: receiving data sent by a terminal in an inactive state, where the data includes to-be-sent data sent by the terminal and identification information of the terminal; determining an anchor base station of the terminal based on the identification information; and sending the data to the anchor base station, so that the anchor base station sends the data to a core-network device. The uplink data of the terminal is forwarded to the anchor base station by using a serving base station and through an interaction between the anchor base station and the serving base station that currently provides an air interface resource for the terminal, and is then transmitted to a core network.

公开(公告)号：US11678351B2

公开(公告)日：2023-06-13

申请号：US16994023

申请日：2020-08-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qiang Fan ,  Qufang Huang ,  Qinghai Zeng

IPC: H04W72/04 ,  H04W28/02 ,  H04W72/12 ,  H04W80/02 ,  H04W72/0446 ,  H04W72/1268

CPC classification number: H04W72/0493 ,  H04W28/0278 ,  H04W72/0413 ,  H04W72/0446 ,  H04W72/1268 ,  H04W80/02

Abstract: Example data sending methods and apparatus are described. One example method includes sending a first message to a network device by a terminal device. The first message is used to indicate information about remaining time of each of one or more data packets. The remaining time of each of the one or more data packets is used to indicate that the terminal device needs to finish sending each of the one or more data packets before the end of the remaining time. The terminal device obtains information about a resource configured by the network device for the terminal device, wherein the resource is used to send each of the one or more data packets before the end of the remaining time.

公开(公告)号：US11677689B2

公开(公告)日：2023-06-13

申请号：US17036990

申请日：2020-09-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaoying Xu ,  Guohua Zhou ,  Xing Liu ,  Qinghai Zeng ,  Li Ji

IPC: H04L12/861 ,  H04L49/9005 ,  H04L47/2416 ,  H04L47/283 ,  H04L47/32

CPC classification number: H04L49/9005 ,  H04L47/2416 ,  H04L47/283 ,  H04L47/32

Abstract: Example data processing methods and apparatuses are disclosed. In one example data processing method, a first terminal obtains packet delay budget adjustment information, where the packet delay budget adjustment information is used to indicate an adjusted packet delay budget, a packet delay budget adjustment amount, or a packet delay budget adjustment range. The first terminal adjusts a size of a jitter buffer based on the packet delay budget adjustment information, and then buffers data based on the adjusted jitter buffer.

公开(公告)号：US11671884B2

公开(公告)日：2023-06-06

申请号：US17245183

申请日：2021-04-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rui Wang ,  Li Hu ,  Mingzeng Dai ,  Qinghai Zeng

IPC: H04W36/00 ,  H04W76/19 ,  H04L9/08 ,  H04W12/02 ,  H04W12/04

CPC classification number: H04W36/0079 ,  H04L9/0891 ,  H04W12/02 ,  H04W12/04 ,  H04W36/0038 ,  H04W76/19 ,  H04L2209/80

Abstract: The present disclosure relates to connection reestablishment methods and apparatus. In one example method, when a handover fails, a terminal reverts back to a source configuration, and obtains a selected cell. The terminal sends a connection reestablishment request to a selected radio access network device. The terminal receives a first message from the selected radio access network device, where the first message includes indication information used to indicate to derive an access network key based on a core network key. The terminal obtains a first core network key based on the indication information, and derives a first access network key based on the first core network key. The terminal communicates with the selected radio access network device by using the first access network key.

公开(公告)号：US11589220B2

公开(公告)日：2023-02-21

申请号：US16712712

申请日：2019-12-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoying Xu ,  Hao Bi ,  Li Hu ,  Qinghai Zeng ,  Qufang Huang

IPC: H04L29/06 ,  H04W12/037 ,  H04W76/30 ,  H04W76/27 ,  H04L9/08 ,  H04W12/06 ,  H04W28/02 ,  H04W12/69

Abstract: An embodiment of this application provides a communications method. The method includes: generating, by an first base station, a radio resource control release message on which encryption and integrity protection are performed by using a new key; and sending, by the first base station, the radio resource control release message to a second base station, thereby improving security of communication between the serving device and the terminal and reducing signaling overheads for performing key negotiation over an air interface.

公开(公告)号：US11570670B2

公开(公告)日：2023-01-31

申请号：US17127388

申请日：2020-12-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lili Zheng ,  Hongping Zhang ,  Qinghai Zeng

IPC: H04W36/00 ,  H04W36/08 ,  H04W72/04 ,  H04W36/30 ,  H04W24/10 ,  H04W36/36

Abstract: Embodiments of the application provide a communications method and apparatus. A target cell is determined based on measurement results of N measured cells and a preset value when there is a first cell satisfying a report trigger condition. A measurement result of the target cell is sent to a base station. A terminal may not only send the measurement result of the cell satisfying the trigger condition to the base station, but also send a measurement result of another cell to the base station. In this way, a quantity of cells that can be selected during determining of handover can be increased, to help the base station select a suitable cell for the terminal.

公开(公告)号：US20220377541A1

公开(公告)日：2022-11-24

申请号：US17882038

申请日：2022-08-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haiyan Luo ,  Qinghai Zeng ,  Mingzeng Dai

IPC: H04W12/0433 ,  H04W12/041 ,  H04W12/63

Abstract: A key management method and a communication apparatus is disclosed. The method includes receiving, by a first radio access network (RAN) device, a key parameter and an identifier of a target terminal device sent by a first terminal device, performing at least one of encryption or decryption on transmission data related to communication between the first terminal device and the target terminal device based on the key parameter, and sending, by the first RAN device, the key parameter and an identifier of the first terminal device to the target terminal device.

公开(公告)号：US20220330074A1

公开(公告)日：2022-10-13

申请号：US17853446

申请日：2022-06-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qufang Huang ,  Qinghai Zeng

IPC: H04W24/10 ,  H04W64/00

Abstract: A communication method and apparatus are provided to improve an immersive experience of a user. The method includes: a terminal apparatus receives information from a network device, where the information indicates an air interface status or indicates an amount of data stored by the network device, the terminal apparatus receives data from the network device and processes the data based on the air interface status or the amount of data stored by the network device.

公开(公告)号：US11463937B2

公开(公告)日：2022-10-04

申请号：US16925614

申请日：2020-07-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rui Wang ,  Mingzeng Dai ,  You Li ,  Qinghai Zeng

IPC: H04W40/22 ,  H04L69/326 ,  H04W24/10

Abstract: The present disclosure relates to data transmission methods. One example method is applied to a first communications device or a chip in the first communications device. The method includes obtaining first data, and sending, to a second communications device, a first message including the first data and a type identifier, where the type identifier is used to indicate a type of the first data, and the type of the first data includes at least one of user plane data, a status report, a control plane message, and a radio resource control RRC message of a terminal.

公开(公告)号：US11445434B2

公开(公告)日：2022-09-13

申请号：US16544661

申请日：2019-08-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qinghai Zeng ,  Yada Huang ,  Jian Zhang ,  Lifeng Han

IPC: H04W48/18 ,  H04W8/02

Abstract: A communication method includes: receiving, by a terminal device, sub-network information of a RAN sent by a network side device, where the sub-network information is used to indicate at least one RAN sub-network included in the RAN; accessing, by the terminal device, a target RAN sub-network among the at least one RAN sub-network based on a service requirement of the terminal device; and communicating, by the terminal device, with the network side device by using the target RAN sub-network.