公开(公告)号：US11812496B2

公开(公告)日：2023-11-07

申请号：US17172708

申请日：2021-02-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuan Wang ,  Zhongping Chen

IPC: G06F15/16 ,  H04W76/40 ,  H04W76/11 ,  H04L65/403 ,  H04L67/141

CPC classification number: H04W76/40 ,  H04L65/403 ,  H04L67/141 ,  H04W76/11

Abstract: A user group session management method includes receiving, by a session management network element from a mobility management network element, a first message for requesting to establish a user group session for a first terminal, where the first message comprises an identifier of the first terminal and an identifier of a user group, generating, by the session management network element based on the identifier of the user group, a routing forwarding policy for the first terminal, and sending, by the session management network element, a second message to a user plane network element, where the second message indicates the user plane network element to establish a first session for the first terminal, and the second message carries the routing forwarding policy.

公开(公告)号：US11743075B2

公开(公告)日：2023-08-29

申请号：US17869596

申请日：2022-07-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changchun Xu ,  Zhongping Chen ,  Yuan Wang ,  Yan Wang

IPC: H04L12/46 ,  H04L12/931 ,  H04L49/351

CPC classification number: H04L12/467 ,  H04L12/4633 ,  H04L49/351

Abstract: In a communication method, when a terminal device initiates establishment of a session of an Ethernet type, a virtual local area network management function entity in a communications system may determine a virtual local area network identifier of a user group to which the terminal device belongs. In this way, a user plane function entity in the session of the terminal device may allocate a plurality of virtual ports to a virtual local area network whose identifier is the virtual local area network identifier and may broadcast the Ethernet broadcast frame on the plurality of virtual ports.

公开(公告)号：US11540337B2

公开(公告)日：2022-12-27

申请号：US16791775

申请日：2020-02-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuan Wang ,  Zhongping Chen ,  Changchun Xu

IPC: H04W76/11 ,  H04L67/146 ,  H04W8/08 ,  H04W36/00 ,  H04W40/02 ,  H04W80/02 ,  H04L69/322

Abstract: A session handling method and apparatus, where the method includes: initiating, by a terminal, an application (APP); determining a session type of a packet data unit (PDU) session based on the APP; and sending a first message to an access and mobility management function (AMF) entity, where the first message includes the session type, and the first message is used to request to establish the PDU session of the session type. In the method, a network side can establish the PDU session of the corresponding type based on the session type of the PDU session that is sent by the terminal, in order to establish the PDU session of the correct type for the terminal.

公开(公告)号：US11469843B2

公开(公告)日：2022-10-11

申请号：US17132150

申请日：2020-12-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yexing Li ,  Yuan Wang ,  Feng Yu ,  Yan Wang ,  Qi Su ,  Zhongping Chen

IPC: H04J3/06 ,  H04W56/00

Abstract: A synchronization method and an apparatus are provided to meet a time precision requirement of an industrial factory in a scenario in which a mobile network is connected to an Ethernet network. In an embodiment, a first device determines seventh timestamp information by using timestamp information of receiving and sending packets in a mobile network, so that a second device calculates a time offset between the first device and the second device based on the seventh timestamp information and time points of receiving and sending packets in an Ethernet network, to perform time synchronization. In the method, impact of a transmission delay between the first device and the second device can be avoided, so that a time precision requirement of an industrial factory can be met in a scenario in which the mobile network is connected to the Ethernet network.

公开(公告)号：US11153816B2

公开(公告)日：2021-10-19

申请号：US16778943

申请日：2020-01-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuan Wang

IPC: H04W48/18 ,  H04W76/25 ,  H04W76/11 ,  H04W84/04

Abstract: An information transmission method and apparatus, such that a terminal device can correctly access a network. The method includes: obtaining, by a core network device, updated first network selection information of a terminal device; obtaining, by the core network device, identifier information of at least one public land mobile network (PLMN) and a correspondence between network slice selection assistance information and network selection information in the at least one PLMN; determining based on the updated first network selection information and the correspondence, target network slice selection assistance information corresponding to the at least one PLMN; and sending to the terminal device, the identifier information of the at least one PLMN and the target network slice selection assistance information corresponding to the at least one PLMN.

公开(公告)号：US20210044454A1

公开(公告)日：2021-02-11

申请号：US17081545

申请日：2020-10-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changchun Xu ,  Zhongping Chen ,  Yuan Wang ,  Yan Wang

IPC: H04L12/46 ,  H04L12/931

Abstract: A communication method and a device, to implement service isolation of an Ethernet broadcast frame. In this method, when a terminal device initiates establishment of a session of an Ethernet type, a virtual local area network management function entity in a communications system may determine a virtual local area network identifier of a user group to which the terminal device belongs. In this way, a user plane function entity in the session of the terminal device may allocate a plurality of virtual ports to a virtual local area network whose identifier is the virtual local area network identifier, and broadcast the Ethernet broadcast frame on the plurality of virtual ports.

公开(公告)号：US10701625B2

公开(公告)日：2020-06-30

申请号：US16037781

申请日：2018-07-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuan Wang ,  Fenqin Zhu ,  Lin Shu

IPC: H04W4/00 ,  H04W48/18 ,  H04W48/14 ,  H04W76/11 ,  H04W4/02 ,  H04W48/08 ,  H04W88/10

Abstract: The present application discloses a DCN processing method for a PLMN that is applied to a network sharing scenario. An access feedback message of a network side is received, and selection assistance information of a DCN and an identifier of a PLMN that serves UE are obtained from the access feedback message, so as to know a PLMN that is actually accessed by the UE. A correspondence between the selection assistance information of the DCN and the identifier of the PLMN that serves the UE is stored. When the UE moves to coverage of the PLMN, a requested DCN to be accessed can be directly determined according to the correspondence, and a RAN node is requested to access the determined DCN. Therefore, a redirection process is reduced, and resource overheads are reduced.

公开(公告)号：US20200187276A1

公开(公告)日：2020-06-11

申请号：US16791775

申请日：2020-02-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuan Wang ,  Zhongping Chen ,  Changchun Xu

IPC: H04W76/11 ,  H04L29/08 ,  H04W36/00 ,  H04W80/02 ,  H04W40/02 ,  H04W8/08

Abstract: A session handling method and apparatus, where the method includes: initiating, by a terminal, an application (APP); determining a session type of a packet data unit (PDU) session based on the APP; and sending a first message to an access and mobility management function (AMF) entity, where the first message includes the session type, and the first message is used to request to establish the PDU session of the session type. In the method, a network side can establish the PDU session of the corresponding type based on the session type of the PDU session that is sent by the terminal, in order to establish the PDU session of the correct type for the terminal.

公开(公告)号：US10659952B2

公开(公告)日：2020-05-19

申请号：US16388616

申请日：2019-04-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuan Wang ,  Zhongping Chen

IPC: H04W8/08 ,  H04W48/00 ,  H04W48/18 ,  H04W60/00 ,  H04W76/11 ,  H04W80/10 ,  H04W76/12 ,  H04W76/18 ,  H04W48/16 ,  H04W48/14

Abstract: A network slice selection policy updating method includes sending, by a terminal device, configured network selection assistance information on the terminal device to an access and mobility management function (AMF), where the configured network selection assistance information includes a first slice identifier. The method further includes receiving, by the terminal device, allowed network selection assistance information and indication information that are returned by the AMF, where the allowed network selection assistance information includes a second slice identifier, and the indication information indicates that the second slice identifier corresponds to the first slice identifier.

公开(公告)号：US20200015290A1

公开(公告)日：2020-01-09

申请号：US16577878

申请日：2019-09-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuan Wang ,  Fenqin Zhu

IPC: H04W76/10 ,  H04W16/02

Abstract: A core network device selection method and apparatus are disclosed. The method includes: receiving, by an access network node, an access stratum message sent by a terminal, where the access stratum message includes a NAS request message and a network selection auxiliary parameter; querying configuration information based on the network selection auxiliary parameter, and determining a group identifier of at least one mobility management device group, where the configuration information includes a correspondence between a network selection auxiliary parameter and a group identifier of a mobility management device group; determining a device identifier of a target mobility management device based on the group identifier of the at least one mobility management device group; and sending the NAS request message to a mobility management device indicated by the device identifier of the target mobility management device.