公开(公告)号：US11985589B2

公开(公告)日：2024-05-14

申请号：US16951489

申请日：2020-11-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zaifeng Zong ,  Fenqin Zhu

IPC: H04W4/00 ,  H04W8/12 ,  H04W36/32 ,  H04W48/18 ,  H04W80/10

CPC classification number: H04W48/18 ,  H04W8/12 ,  H04W36/32 ,  H04W80/10

Abstract: A mobility management network element in a visited network performs a method in a home-routed roaming operation to facilitate a switching of a terminal in a session to the visited network. The mobility management network element obtains single network slice selection assistance information (S-NSSAI) for a home network of the terminal corresponding to the session of the terminal. The mobility management network element also obtains S-NSSAI for the visited network corresponding to the session of the terminal, according to a mapping relationship between the S-NSSAI for the home network and the S-NSSAI for the visited network. The mobility management network element then sends the S-NSSAI for the visited network to an access device of the terminal in the visited network, for the access device to process the session.

公开(公告)号：US11706704B2

公开(公告)日：2023-07-18

申请号：US16664481

申请日：2019-10-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fenqin Zhu ,  Wenfu Wu

IPC: H04W48/18 ,  H04W76/10 ,  H04L45/00 ,  H04W64/00 ,  H04W72/51 ,  H04W80/02

CPC classification number: H04W48/18 ,  H04L45/72 ,  H04W64/00 ,  H04W72/51 ,  H04W76/10 ,  H04W80/02

Abstract: This application discloses a session management method, a network device, and a communications system. According to embodiments of the present invention, an intermediate session management entity is selected based on UE location information and PDU session requirement information. In this way, an intermediate session management entity near UE can provide a service for a PDU session, and a delay of data transmission is reduced. In addition, the intermediate session management entity selects a user plane entity based on the UE location information and the PDU requirement information, and the intermediate session management entity is responsible for managing user plane entities within a specified area, and does not need to manage user plane entities in the entire PDU session, thereby reducing management complexity.

公开(公告)号：US20230179664A1

公开(公告)日：2023-06-08

申请号：US18075981

申请日：2022-12-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zaifeng Zong ,  Fenqin Zhu

IPC: H04L67/146 ,  H04W60/04 ,  H04W36/00

CPC classification number: H04L67/146 ,  H04W60/04 ,  H04W36/0022 ,  H04W36/00 ,  H04W84/042

Abstract: A session establishment method and an apparatus, such that an established packet data network (PDN) connection is transferred to a network slice in a fifth generation (5G) network during inter-system mobility of a terminal. The method includes receiving, by a terminal from a control plane function entity, corresponding network slice information used for transferring an established PDN connection to a 5G network, where the corresponding network slice information includes corresponding single network slice selection assistance information (S-NSSAI). The method further includes sending a packet data unit (PDU) session establishment request, where the PDU session establishment request includes corresponding S-NSSAI used for transferring a first PDN connection to the 5G network and a corresponding data network name (DNN) used for transferring the first PDN connection to the 5G network, and the first PDN connection is any one of one or more established PDN connections.

公开(公告)号：US20230080067A1

公开(公告)日：2023-03-16

申请号：US17992494

申请日：2022-11-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qianghua Zhu ,  Fenqin Zhu

IPC: H04W48/18 ,  H04W60/00 ,  H04W48/08

Abstract: A network access method includes a first terminal that sends a first message to an access management network element in a first non-public network, where the first message is used to request to register the first terminal with the first non-public network. The first terminal receives a second message from the access management network element, where the second message is used to indicate that registration of the first terminal with the first non-public network is rejected, the second message includes first indication information, and the first indication information indicates that access of the first terminal to the first non-public network is forbidden. The first terminal adds information about the first non-public network to a forbidden network list of the first terminal based on the first indication information.

公开(公告)号：USRE49395E1

公开(公告)日：2023-01-24

申请号：US16418645

申请日：2019-05-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fenqin Zhu ,  Yan Li ,  Wei Lu

IPC: H04W4/00 ,  H04W68/00 ,  H04L12/26 ,  H04W88/16 ,  H04W4/90

Abstract: A service implementation method, apparatus, and system are disclosed. The service implementation method includes: receiving, by a serving gateway, a data packet of a terminal device sent by a packet data network gateway; if the data packet is a data packet with a serving priority and the serving gateway has sent a paging trigger message with a serving priority to a mobility management element, skipping, by the serving gateway, sending a paging trigger message to the mobility management element; or if the data packet is a data packet with a serving priority and the serving gateway has sent no paging trigger message with a serving priority to a mobility management element, sending, by the serving gateway, a paging trigger message to the mobility management element; wherein the paging trigger message is used to enable the mobility management element to page the terminal device.

公开(公告)号：US11533375B2

公开(公告)日：2022-12-20

申请号：US17074897

申请日：2020-10-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zaifeng Zong ,  Fenqin Zhu

IPC: H04W60/04 ,  H04W36/00 ,  H04L67/146 ,  H04W84/04

Abstract: A session establishment method and an apparatus, such that an established packet data network (PDN) connection is transferred to a network slice in a fifth generation (5G) network during inter-system mobility of a terminal. The method includes receiving, by a terminal from a control plane function entity, corresponding network slice information used for transferring an established PDN connection to a 5G network, where the corresponding network slice information includes corresponding single network slice selection assistance information (S-NSSAI). The method further includes sending a packet data unit (PDU) session establishment request, where the PDU session establishment request includes corresponding S-NSSAI used for transferring a first PDN connection to the 5G network and a corresponding data network name (DNN) used for transferring the first PDN connection to the 5G network, and the first PDN connection is any one of one or more established PDN connections.

公开(公告)号：US11528761B2

公开(公告)日：2022-12-13

申请号：US16928636

申请日：2020-07-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zaifeng Zong ,  Wenfu Wu ,  Fenqin Zhu

IPC: H04W76/12 ,  H04W76/22 ,  H04W8/02 ,  H04W64/00

Abstract: A communication method and a communications apparatus, wherein the communication method includes: receiving, by a network repository network element, a first request message from a mobility management network element, where the first request message carries a data network name of a session that a terminal device requests to establish; determining, by the network repository network element based on the first request message, at least one target session management network element from session management network elements that support the data network name; and sending, by the network repository network element, an identifier of the at least one target session management network element to the mobility management network element, such that a session management network element can be selected to provide a service for a terminal device.

公开(公告)号：US11463920B2

公开(公告)日：2022-10-04

申请号：US17037172

申请日：2020-09-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zaifeng Zong ,  Fenqin Zhu

IPC: H04W36/00 ,  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：US11432366B2

公开(公告)日：2022-08-30

申请号：US16906842

申请日：2020-06-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fenqin Zhu ,  Wenfu Wu

IPC: H04W80/10 ,  H04W76/11 ,  H04M15/00 ,  H04W40/20 ,  H04W60/00 ,  H04W64/00

Abstract: A session management method, device, and system, such that a terminal can access a local data network using a local user plane function (UPF) network element even when the terminal is out of a management area of a remote anchor session management function (SMF) network element. The method includes: receiving, by an intermediate session management network element, one or more local data network access identifiers (DNAIs); and determining, by the intermediate session management network element, a target DNAI based on current location information of a terminal and the one or more local DNAIs, where the target DNAI is used to select a local session management network element for the terminal.

公开(公告)号：US11388762B2

公开(公告)日：2022-07-12

申请号：US16992500

申请日：2020-08-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qi Yao ,  Zaifeng Zong ,  Fenqin Zhu

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

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.