公开(公告)号：US20210377138A1

公开(公告)日：2021-12-02

申请号：US17404232

申请日：2021-08-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haiyang Sun ,  Yizhuang Wu ,  Wanqiang Zhang

IPC: H04L12/26

Abstract: A communication method, apparatus, and system, the method including sending, by a policy control network element, policy control information to a network device, where the policy control information includes a trigger event for reporting transport network information, and where the trigger event triggers the network device to report the transport network information to the policy control network element, receiving, by the policy control network element, the transport network information from the network device, formulating, by the policy control network element, a control policy based on the transport network information, and sending, by the policy control network element, the control policy to the network device.

公开(公告)号：US20210360379A1

公开(公告)日：2021-11-18

申请号：US17334233

申请日：2021-05-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yizhuang Wu ,  Chunshan Xiong ,  Haiyang Sun

IPC: H04W8/14 ,  H04W28/06

Abstract: Embodiments of the present application relate to the field of communications technologies, and provide a PCF determining method, an apparatus, and a system. The method includes: receiving, by a first AMF, PCF identification information sent by a second AMF, and obtaining, by the first AMF, policy information from a target PCF when at least one PCF corresponding to the PCF identification information includes the target PCF, where the PCF identification information includes identification information of at least one first PCF, the identification information of the first PCF includes at least one of an IP address of the first PCF, an IP prefix of the first PCF, and an FQDN of the first PCF, the first AMF is an AMF providing a service for the terminal to access a network this time, and the second AMF is an AMF providing a service for the terminal to access a network last time.

公开(公告)号：US10952036B2

公开(公告)日：2021-03-16

申请号：US16592569

申请日：2019-10-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanmei Yang ,  Yizhuang Wu ,  Cuili Ge

IPC: H04W4/08 ,  H04W4/10 ,  H04W84/08

Abstract: A method for regrouping multiple groups and a device are provided. The method includes: receiving, by a first group management functional entity, a group regrouping creation message sent by first UE, where the group regrouping creation message includes identifiers of N MCPTT groups, and the group regrouping creation message is used to request the first group management functional entity to create, according to the identifiers of the N MCPTT groups, a temporary group which is initiated by a first MCPTT user and into which the N MCPTT groups are regrouped; and the first MCPTT user belongs to at least one MCPTT group of the N MCPTT groups; and configuring information about the temporary group, where the information about the temporary group includes an identifier of the temporary group into which the N MCPTT groups are regrouped, and the identifiers of the N MCPTT groups.

公开(公告)号：US20210076192A1

公开(公告)日：2021-03-11

申请号：US17067377

申请日：2020-10-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yizhuang Wu

IPC: H04W8/08 ,  H04W4/50 ,  H04W24/10

Abstract: A communications method includes determining a session management function entity based on at least one of a data network name, slice information, and an application function service identifier, and sending a first message to the session management function entity, where the first message is used to subscribe to a terminal event, the first message includes service description information, and the service description information is used to indicate a service corresponding to the terminal event.

公开(公告)号：US10924892B2

公开(公告)日：2021-02-16

申请号：US15971380

申请日：2018-05-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yao Hua ,  Yizhuang Wu ,  Yongqiang Gao

IPC: H04W4/08 ,  H04W4/46 ,  H04J11/00 ,  H04W84/04

Abstract: Embodiments of the present invention relate to the communications field and provide a group communications method, device, and system to reduce a waste of an uplink resource and a downlink resource. The method may include obtaining, by a group communications server, group communication data to be sent by first user equipment and a cell identifier of a first cell, wherein the first cell provides a service for the first user equipment; obtaining, by the group communications server according to the cell identifier of the first cell, a group identifier of a first mobile group corresponding to the cell identifier of the first cell from a first preset correspondence; and sending, by the group communications server, the group communication data to a user equipment in the first mobile group other than the first user equipment according to the group identifier of the first mobile group.

公开(公告)号：US20200037119A1

公开(公告)日：2020-01-30

申请号：US16592569

申请日：2019-10-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanmei Yang ,  Yizhuang Wu ,  Cuili Ge

IPC: H04W4/08 ,  H04W4/10 ,  H04W84/08

Abstract: Embodiments of the present disclosure provide a method for regrouping multiple groups and a device, including: receiving, by a first group management functional entity, a group regrouping creation message sent by first UE, where the group regrouping creation message includes identifiers of N MCPTT groups, and the group regrouping creation message is used to request the first group management functional entity to create, according to the identifiers of the N MCPTT groups, a temporary group which is initiated by a first MCPTT user and into which the N MCPTT groups are regrouped; and the first MCPTT user belongs to at least one MCPTT group of the N MCPTT groups; and configuring information about the temporary group, where the information about the temporary group includes an identifier of the temporary group into which the N MCPTT groups are regrouped, and the identifiers of the N MCPTT groups.

公开(公告)号：US20180167786A1

公开(公告)日：2018-06-14

申请号：US15892713

申请日：2018-02-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yizhuang Wu ,  Cuili Ge ,  Yanmei Yang

IPC: H04W4/08 ,  H04W4/10 ,  H04W8/20 ,  H04W4/90

CPC classification number: H04W4/08 ,  H04L67/306 ,  H04W4/10 ,  H04W4/90 ,  H04W8/20 ,  H04W72/04 ,  H04W76/45 ,  H04W76/50

Abstract: Embodiments of the present disclosure provide a method, an apparatus, and a system for changing an association relationship between an MCPTT user and an MCPTT group. A method for changing an association relationship between an MCPTT user and an MCPTT group is performed by a first network element device, including: receiving an association change request sent by first UE, where the association change request includes request information, the request information is used to indicate that a first MCPTT user requests to change an association relationship between a second MCPTT user and a first MCPTT group, and the first MCPTT user is an MCPTT user using the first UE; and setting the association relationship between the second MCPTT user and the first MCPTT group according to the association change request. The present disclosure implements that an MCPTT user changes an association relationship between another MCPTT user and a group.

公开(公告)号：US12262273B2

公开(公告)日：2025-03-25

申请号：US18422915

申请日：2024-01-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongcui Li ,  Fang Yu ,  Yan Li ,  Hui Ni ,  Yizhuang Wu

IPC: H04W36/00 ,  H04W36/12

Abstract: This application provides a method for controlling disorder of downlink data and an apparatus thereof. The method includes: A control plane network element determines to switch from a first user plane device to a second user plane device, and sends indication information to the second user plane device. The second user plane device buffers, according to the received indication information, downlink data received from a session anchor, and sends the buffered downlink data after reception of an end marker from the first user plane device.

公开(公告)号：US20250024261A1

公开(公告)日：2025-01-16

申请号：US18899771

申请日：2024-09-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yizhuang Wu ,  Yang Cui

IPC: H04W12/088 ,  H04W12/37

Abstract: This application provides a communication method and apparatus, to reduce a risk of user plane data exposure. In the communication method, after an IPsec connection is established between a first user plane network element and a terminal, the terminal or the first user plane network element may be used as an endpoint device on the IPsec connection. In this case, when transmission of user plane data protected by IPsec is performed between endpoint devices, an intermediate transmission device (for example, an access network device) located between the endpoint devices, that is, an access network device on the IPsec connection, may directly perform transparent transmission of the user plane data.

公开(公告)号：US20250016555A1

公开(公告)日：2025-01-09

申请号：US18893109

申请日：2024-09-23

Applicant: Huawei Technologies Co, Ltd.

Inventor： Hongyu Xiang ,  Lei Chen ,  Yang Cui ,  Yizhuang Wu ,  Ao Lei ,  Ruijie Li

IPC: H04W12/033 ,  H04W12/10 ,  H04W74/0833

Abstract: This application relates to communication technologies, and provides a channel key-based encryption method and an apparatus, to resolve a problem that a terminal cannot avoid an attack from a false base station before a security mode is enabled, and a security risk. The method includes: A network device broadcasts a system information block, indicating that channel key generation is supported, where the system information block includes a preamble and a resource configuration of a physical random access channel; receives, on the physical random access channel, a first message from a user equipment, where the first message includes the preamble; sends a second message to the user equipment, where the second message includes configuration information of a first time-frequency resource; receives, on the first time-frequency resource, a third message from the user equipment; and performs channel measurement based on the third message, to obtain a channel key.