公开(公告)号：US20220225203A1

公开(公告)日：2022-07-14

申请号：US17706913

申请日：2022-03-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingxing Hu ,  Le Yan ,  Hongping Zhang

IPC: H04W36/30 ,  H04W36/00 ,  H04W36/06 ,  H04W72/10 ,  H04W24/10

Abstract: A communication method and apparatus, the method including performing, by a terminal device or a chip of the terminal device, sending a master cell group (MCG) failure message to a master node (MN) via a secondary node (SN) in response to detecting that a wireless connection fails, and further in response to a secondary cell group (SCG) not failing, performing cell selection in response to the SCG failing, and accessing a target cell in response to the target cell being a candidate cell pre-configured by the MN, where the target cell is a cell selected by the terminal device during the cell selection, where the SCG is a group of cells associated with the SN, and where the MCG is a group of cells associated with the MN.

公开(公告)号：US11369000B2

公开(公告)日：2022-06-21

申请号：US16991824

申请日：2020-08-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tingting Geng ,  Hongping Zhang ,  Qinghai Zeng

IPC: H04W76/30 ,  H04W76/27 ,  H04W28/06 ,  H04W52/02 ,  H04W92/20

Abstract: Embodiments of this application provide a communication method and a communications system. The method includes: receiving, by a second network device from a first network device, information used to indicate that a terminal initiates a radio access network notification area update (RNAU), generating, by the second network device based on the information, a radio resource control release message on which security protection has been performed, and sending, to the first network device, the radio resource control release message on which the security protection has been performed.

公开(公告)号：US20220167215A1

公开(公告)日：2022-05-26

申请号：US17670798

申请日：2022-02-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingxing Hu ,  Hongping Zhang ,  Xiaoli Shi

IPC: H04W36/00 ,  H04W24/10 ,  H04W4/02 ,  H04W88/06

Abstract: A history information recording method, including obtaining, by a current secondary node, information about a history cell that a terminal device visits, where the information about the history cell comprises at least one of stay time of the terminal device in the history or moving speed information of the terminal device in the history cell, and performing, by the current secondary node, handover preparation based on the information about the history cell.

公开(公告)号：US11246074B2

公开(公告)日：2022-02-08

申请号：US16910541

申请日：2020-06-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Le Yan ,  Yanglai Shuai ,  Hongping Zhang ,  Qinghai Zeng

IPC: H04W76/38 ,  H04W36/18 ,  H04W76/27 ,  H04L1/16 ,  H04W36/08 ,  H04W80/02 ,  H04W80/08

Abstract: Embodiments of this application disclose a communication method and a communications apparatus. A source base station instructs a terminal to hand over from the source base station to a target base station, and sends, to the terminal, configuration information of a second connection required for communication between the terminal and the target base station. The terminal maintains a first connection for communication with the source base station, and establishes the second connection for communication with the target base station based on the configuration information of the second connection. The solutions in the embodiments of this application reduces latency in a handover process.

公开(公告)号：US20220022275A1

公开(公告)日：2022-01-20

申请号：US17488150

申请日：2021-09-28

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Tingting Geng ,  Rui Wang ,  Hongping Zhang ,  Qinghai Zeng

IPC: H04W76/19 ,  H04W24/04

Abstract: The embodiments of this application provide a communication method and an apparatus, and relate to the field of communications technologies, to successfully report MCG link failure information. The method includes: When a terminal device sends a first data unit to a first access network device via an MCG split bearer, the terminal device determines that an MCG link failure occurs. In addition, the terminal device sends a second data unit to a second access network device via an SCG split bearer, so that the second access network device sends the second data unit to the first access network device, where the second data unit includes information used to indicate the MCG link failure.

公开(公告)号：US20210377816A1

公开(公告)日：2021-12-02

申请号：US17401913

申请日：2021-08-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Le Yan ,  Hongping Zhang ,  Qinghai Zeng ,  Tingting Geng ,  Xingxing Hu

IPC: H04W36/00 ,  H04W76/12

Abstract: A source base station receives a first data packet from a core network device; a target base station receives a second data packet from the core network device, where the second data packet is a duplicate of the first data packet, and the first data packet and the second data packet each include a first index; the source base station sends first indication information to the target base station, where the first indication information indicates a mapping relationship between the first index and a second index; the source base station sends a third data packet to a user equipment UE in response to the first data packet; the target base station sends a fourth data packet to the UE in response to the second data packet, where the third data packet and the fourth data packet each include the second index.

公开(公告)号：US11178588B2

公开(公告)日：2021-11-16

申请号：US16832236

申请日：2020-03-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hongping Zhang ,  Qinghai Zeng

IPC: H04W36/00 ,  H04B17/318 ,  H04W76/15 ,  H04L5/00 ,  H04W24/10 ,  H04W36/30

Abstract: This application provides a measurement method and an apparatus. The method includes: receiving a measurement configuration from a base station, where the measurement configuration includes indication information, and the indication information is used to indicate a relationship between neighboring cell measurement of a terminal and configured s-measure of the terminal. In the method, the indication information may be carried in the measurement configuration, and the indication information indicates the relationship between the neighboring cell measurement of the terminal and configured s-measure of the terminal.

公开(公告)号：US20210321313A1

公开(公告)日：2021-10-14

申请号：US17358746

申请日：2021-06-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Le Yan ,  Hongping Zhang ,  Qinghai Zeng ,  Tingting Geng ,  Shitong Yuan

IPC: H04W36/08 ,  H04W36/00 ,  H04W36/30

Abstract: This application provides a communication method and a communications apparatus. The method includes: receiving, by a terminal device, conditional handover configuration information from a first network device, where the first network device is a network device to which a serving cell belongs, and the serving cell is a cell that currently accessed by the terminal belongs; and determining, by the terminal device, a first target cell based on the conditional handover configuration information.

公开(公告)号：US11134427B2

公开(公告)日：2021-09-28

申请号：US16822543

申请日：2020-03-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qinghai Zeng ,  Hongping Zhang

IPC: H04W36/36 ,  H04W48/16 ,  H04W76/25 ,  H04W36/08 ,  H04W36/30

Abstract: A cell access method includes determining, by a terminal in communication with a first cell, to communicate with a second cell, establishing a wireless connection by which the terminal communicates with the second cell in response to the determining to communicate with the second cell, accessing the second cell on the wireless connection by the terminal, and receiving, by the terminal, a reconfiguration message sent by a first base station of the first cell. The reconfiguration message is sent by the first base station to the terminal. The method further includes reconfiguring the wireless connection according to the reconfiguration message, and communicating with the second cell on the reconfigured wireless connection.

公开(公告)号：US20210160798A1

公开(公告)日：2021-05-27

申请号：US17170524

申请日：2021-02-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lili Zheng ,  Hongping Zhang ,  Qinghai Zeng ,  Le Yan ,  Xingxing Hu

IPC: H04W56/00 ,  H04W24/10 ,  H04W36/00 ,  H04W36/08 ,  H04W76/19

Abstract: This application provides a measurement configuration method and an apparatus. The method includes: determining that a serving cell changes from a first cell to a second cell; and updating or deleting a current measurement window configuration. The measurement window configuration is used to indicate a time domain position at which a terminal device measures a downlink reference signal. According to the solution provided in this application, when the serving cell of the terminal device changes, the current measurement window configuration of the terminal device is updated or deleted.