公开(公告)号：US11968743B2

公开(公告)日：2024-04-23

申请号：US17478218

申请日：2021-09-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zaifeng Zong ,  Fenqin Zhu

IPC: H04W8/08 ,  H04W60/04

CPC classification number: H04W8/08 ,  H04W60/04

Abstract: A communication method, a communications device, and a communications system to avoid, when an access and mobility management function (AMF) entity fails, a case in which a re-registration process of a terminal that is being served is triggered because a context of the terminal is lost. The method includes: obtaining, by a communications device, a first group identifier of a terminal group to which a first terminal served by a first mobility management entity belongs; and sending, by the communications device, a message related to the first terminal to a second mobility management entity based on the first group identifier when an exception occurs in the first mobility management entity, where the second mobility management entity is a mobility management entity in which a context of the first terminal exists.

公开(公告)号：US11950136B2

公开(公告)日：2024-04-02

申请号：US18075105

申请日：2022-12-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fenqin Zhu ,  Wenfu Wu

IPC: H04W28/086 ,  H04W28/02 ,  H04W28/08 ,  H04W36/00 ,  H04W36/08 ,  H04W36/10

CPC classification number: H04W28/086 ,  H04W28/0242 ,  H04W28/0247 ,  H04W28/08 ,  H04W36/0033 ,  H04W36/08 ,  H04W36/10

Abstract: This application discloses a load relocation method, apparatus, and a system. The method includes determining, by a communications network entity, a target access management entity for load relocation; and sending, to an access network entity, an identifier of an original access management entity and an identifier of the target access management entity or an address of the target access management entity with respect to the access network entity. The access network entity sends a message from a user equipment (UE) to the target access management entity based on the identifier of the original access management entity carried in the message from the UE. In the foregoing solution, signaling overheads in a load relocation process are reduced and load relocation efficiency is improved.

公开(公告)号：US11930406B2

公开(公告)日：2024-03-12

申请号：US17584993

申请日：2022-01-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zaifeng Zong ,  Fenqin Zhu

IPC: H04W36/00 ,  H04W76/11 ,  H04W76/12

CPC classification number: H04W36/0055 ,  H04W36/0016 ,  H04W76/11 ,  H04W76/12

Abstract: A handover method and apparatus, where the method includes: determining, by a first control plane function network element, at least one bearer that needs to be established when a protocol data unit (PDU) session of a terminal in a first network is to be switched to a packet data network (PDN) connection in a second network; and obtaining, by the first control plane function network element, tunnel information of the PDN connection, where the tunnel information of the PDN connection includes user plane tunnel information corresponding to each of the at least one bearer.

公开(公告)号：US20240080931A1

公开(公告)日：2024-03-07

申请号：US18506908

申请日：2023-11-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianxin Jia ,  Wenfu Wu ,  Zaifeng Zong ,  Fenqin Zhu

IPC: H04W76/20 ,  H04W68/02 ,  H04W76/40

CPC classification number: H04W76/20 ,  H04W68/02 ,  H04W76/40

Abstract: Embodiments of this application relate to the field of communication technologies, and disclose a communication method and apparatus, to optimize a multicast service processing procedure. The method may include: A first session management function network element receives a first message from a second session management function network element, where the second session management function network element corresponds to a multicast session, and the first message notifies that the multicast session is activated or notifies that the multicast session is released. The first session management function network element sends first information to an access and mobility management function network element based on the first message, where the first information includes identification information of the multicast session and/or indication information indicating group paging.

公开(公告)号：US11902379B2

公开(公告)日：2024-02-13

申请号：US16992770

申请日：2020-08-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qianghua Zhu ,  Fenqin Zhu ,  Wenfu Wu

IPC: H04W76/19 ,  H04W36/00 ,  H04W48/18 ,  H04W76/30 ,  H04W12/06 ,  H04W76/10 ,  H04L67/142

CPC classification number: H04L67/142

Abstract: A method for determining a service and session continuity (SSC) mode and an apparatus, where the method includes: determining, by a terminal device, a requested SSC mode; and sending a first request message to a first core network element, where the first request message is used to request to establish a first protocol data unit (PDU) session, and the first request message includes a session type of the first PDU session, the requested SSC mode, and first indication information. The first request message sent by the terminal device to the first core network element may carry the first indication information, used to indicate that the SSC mode requested by the terminal device is not allowed to be modified, to prevent a network-side network element from subsequently making an erroneous decision, for example, modifying the requested SSC mode to another SSC mode that is not supported by the terminal device.

公开(公告)号：US11895715B2

公开(公告)日：2024-02-06

申请号：US17740868

申请日：2022-05-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qi Yao ,  Zaifeng Zong ,  Fenqin Zhu

IPC: H04W76/11 ,  H04W76/12 ,  H04W76/15 ,  H04W48/16 ,  H04W48/18 ,  H04W64/00 ,  H04W74/00 ,  G06N3/08 ,  H04L41/16

CPC classification number: H04W76/11 ,  G06N3/08 ,  H04L41/16 ,  H04W48/16 ,  H04W48/18 ,  H04W64/003 ,  H04W74/002 ,  H04W76/12 ,  H04W76/15

Abstract: A method and an apparatus for determining a protocol data unit (PDU) session service network element to control an aggregated maximum bit rate (AMBR), where the method includes receiving, by a control plane function network element, a request for establishing a first PDU session from a mobility management device, where the request for establishing the first PDU session includes a first data network name (DNN), determining, by the control plane function network element, that a same control plane function network element and a same user plane function network element need to be selected for a PDU session corresponding to the first DNN, and sending, by the control plane function network element, first indication information to the mobility management device, where the first indication information is used to indicate that a same control plane function network element needs to be selected for the PDU session corresponding to the first DNN.

公开(公告)号：US11856469B2

公开(公告)日：2023-12-26

申请号：US17980129

申请日：2022-11-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qianghua Zhu ,  Yali Yan ,  Fenqin Zhu ,  Wenfu Wu

IPC: H04W36/14 ,  H04W4/50 ,  G06F9/54

CPC classification number: H04W36/14 ,  G06F9/546 ,  G06F9/547 ,  H04W4/50

Abstract: A communication method includes a first network element receiving identity information of a terminal from a second network element, where the identity information includes an identity of the terminal or an identity of a group of the terminal; the first network element obtaining, based on the identity information, type information of a serving network corresponding to the identity information; and the first network element sending API information of the first network element based on the type information. Based on this communication method, the second network element can select an available API based on the API information or the type information of the serving network and invoke the available API.

公开(公告)号：US20230388756A1

公开(公告)日：2023-11-30

申请号：US18446672

申请日：2023-08-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianxin Jia ,  Wenfu Wu ,  Zaifeng Zong ,  Fenqin Zhu

IPC: H04W4/06 ,  H04W4/02 ,  H04W72/04

CPC classification number: H04W4/06 ,  H04W4/023 ,  H04W72/04

Abstract: This application provides a communication method and apparatus for a multicast/broadcast service. The method is performed by a network device and including: obtaining reference location information of a terminal representing a reference location of the terminal. When the reference location of the terminal is inside a service area of a first multicast/broadcast service, triggering a target access network device of the terminal to allocate, to the terminal, a data resource for transmitting the first multicast/broadcast service. When the reference location of the terminal is outside the service area, triggering the target access network device not to allocate, to the terminal, a data resource for transmitting the first multicast/broadcast service. According to the method, when the terminal moves into the service area or moves out of the service area, the network device can dynamically and flexibly interact with an access network device, thereby effectively saving network resources.

公开(公告)号：US11812309B2

公开(公告)日：2023-11-07

申请号：US17548958

申请日：2021-12-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zaifeng Zong ,  Fenqin Zhu

IPC: H04W36/00 ,  H04W76/12 ,  H04W36/08

CPC classification number: H04W36/0016 ,  H04W76/12 ,  H04W36/08

Abstract: A communications method, apparatus, and system to implement handover between session management network elements, where a target session management network element sends a first message to a source session management network element based on the information about the source session management network element received. After receiving the first message from the target intermediate session management network element, the source session management network element indicates, based on the first message, a source intermediate user plane network element to establish a forwarding tunnel. As such, the forwarding tunnel between the source intermediate user plane network element and a target intermediate user plane network element is established, and the source intermediate user plane network element can forward data to the target intermediate user plane network element through the forwarding tunnel.

公开(公告)号：US11792695B2

公开(公告)日：2023-10-17

申请号：US17851192

申请日：2022-06-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fenqin Zhu ,  Hao Jing

IPC: H04W36/00

CPC classification number: H04W36/0022 ,  H04W36/0016

Abstract: This application provides a communication method and a communications apparatus, to help control switching of a PDU session, thereby improving system performance. The method includes: determining, by a network device based on switching indication information of protocol data unit PDU sessions established by a terminal in a first network, a target PDU session from the established PDU sessions, where all the established PDU sessions have a same data network name DNN; and sending, by the network device, session information of the target PDU session to a mobility management entity device in a second network.