公开(公告)号：US20190199802A1

公开(公告)日：2019-06-27

申请号：US16292802

申请日：2019-03-05

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Fangyuan Zhu ,  Yan Li

IPC: H04L29/08

CPC classification number: H04L67/14 ,  H04L29/06 ,  H04W24/04 ,  H04W28/16 ,  H04W36/00

Abstract: In a session management method, when a first access and mobility management function (AMF) network element serving a terminal becomes unavailable, a service management function (SMF) network element obtains a pool identifier of an AMF pool that includes the first AMF, and queries a network repository function (NRF) entity to obtain the address or identifier of a second AMF in the same AMF pool. The SMF then triggers the second AMF network element to obtain a context of the terminal from a unstructured data storage function (UDSF) entity.

公开(公告)号：US12213203B2

公开(公告)日：2025-01-28

申请号：US18182512

申请日：2023-03-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongcui Li ,  Fangyuan Zhu ,  Yan Li ,  Hui Ni ,  Yang Xin

IPC: H04W76/22 ,  H04L67/14 ,  H04W28/02 ,  H04W72/23

Abstract: A packet transmission method, including receiving, by a session management function network element, first access network tunnel information and second access network tunnel information that correspond to a first service, and sending a downlink forwarding rule to a user plane function network element, where the downlink forwarding rule includes the first access network tunnel information and the second access network tunnel information, and the downlink forwarding rule indicates the user plane function network element to replicate a received downlink packet of the first service, and send downlink packets of the first service through two paths respectively corresponding to the first access network tunnel information and the second access network tunnel information.

公开(公告)号：US12166743B2

公开(公告)日：2024-12-10

申请号：US17958138

申请日：2022-09-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fangyuan Zhu ,  Yan Li ,  Hui Ni

IPC: H04L61/4511 ,  H04L61/4541

Abstract: This application disclose an application discovery solutions. The application discovery method is applied to a first SMF network element, and includes: obtaining a first domain name requested by a terminal device; sending the first domain name to a second SMF network element; and receiving first information from the second SMF network element, where the first information includes information about a first application platform or an IP address of a DNS server corresponding to the first application platform, the first application platform is an application platform on which a first application corresponding to the first domain name is located, and the first information is for obtaining a target IP address corresponding to the first domain name. The terminal device may access, by using the target IP address, the first application corresponding to the first domain name.

公开(公告)号：US11877346B2

公开(公告)日：2024-01-16

申请号：US17140460

申请日：2021-01-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongcui Li ,  Fangyuan Zhu ,  Yan Li ,  Hui Ni ,  Yang Xin

IPC: H04W8/08 ,  H04W76/11 ,  H04W84/18

CPC classification number: H04W8/08 ,  H04W76/11 ,  H04W84/18

Abstract: A service transmission method and apparatus are provided to establish a connection between an access and mobility management function network element and a secondary base station, when a master base station is not capable of continuing to provide a service for a terminal device. In an embodiment, an access and mobility management function network element determines that a master base station is not capable of continuing to provide a service for a terminal device. The access and mobility management function network element sends a mobility management context of the terminal device to a secondary base station, where the mobility management context is used by the secondary base station to perform mobility management on the terminal device. Therefore, a signaling connection between the access and mobility management function network element and the secondary base station can be quickly established, thereby ensuring service transmission and improving user experience.

公开(公告)号：US11855846B2

公开(公告)日：2023-12-26

申请号：US18167347

申请日：2023-02-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yang Xin ,  Fangyuan Zhu ,  Weiwei Chong ,  Xiaobo Wu

IPC: H04L41/0893 ,  H04L41/14 ,  H04L9/40

CPC classification number: H04L41/0893 ,  H04L41/14 ,  H04L63/0236

Abstract: The present disclosure relates to communication methods and communication apparatuses. In one example method, a first data analytics network element receives first information of an application from a first network element, where the first information includes at least one of first application description information or an application status that correspond/corresponds to the application. The first application description information includes an application identifier and first IP information that correspond to the application, and the application status includes a foreground state or a background state of the application. The first data analytics network element determines second information based on the first information. The first data analytics network element sends the second information to a second network element.

公开(公告)号：US20230388908A1

公开(公告)日：2023-11-30

申请号：US18446486

申请日：2023-08-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yaxin Wang ,  Yan Li ,  Fangyuan Zhu

IPC: H04W48/14 ,  H04W60/04

CPC classification number: H04W48/14 ,  H04W60/04

Abstract: This application provides a network slice-based communication method and an apparatus to improve a success rate of accessing a network slice by a terminal. A network device determining, by a network device, a network slice that a terminal is allowed to access and a network slice that the terminal is rejected to access; determines a registration area of the terminal based on the network slice that the terminal is allowed to access and the network slice that the terminal is rejected to access; and sends information about the registration area to the terminal.

公开(公告)号：US20230328640A1

公开(公告)日：2023-10-12

申请号：US18325686

申请日：2023-05-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fangyuan Zhu ,  Yan Li ,  Hui Ni

IPC: H04W84/04 ,  H04W84/12 ,  H04W48/18 ,  H04W8/12

CPC classification number: H04W48/18 ,  H04W8/12 ,  H04W84/042 ,  H04W84/12

Abstract: A communication method includes sending, by a source mobility management network element in a first area, a first slice set for a home public land mobile network (PLMN) (HPLMN) of a terminal device to a target mobility management network element in a second area when handing over the terminal device from a source access network device in the first area to a target access network device in the second area, where the first slice set corresponds to a second slice set for the first area, and obtaining, by the target mobility management network element, a third slice set for the second area based on the first slice set.

公开(公告)号：US11689496B2

公开(公告)日：2023-06-27

申请号：US17675301

申请日：2022-02-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fangyuan Zhu ,  Yan Li ,  Hui Ni

IPC: H04L61/4541 ,  H04L61/4511 ,  H04L61/5007 ,  H04L67/141 ,  H04L67/146

CPC classification number: H04L61/4511 ,  H04L61/5007 ,  H04L67/141 ,  H04L67/146

Abstract: A domain name system query method in which: a first network element receives a DNS query request including a first domain name from a terminal apparatus; the first network element sends first request information which comprises location information of the terminal apparatus and the first domain name to a second network element; the second network element determines, based on the first request information, an IP address and feeds back the IP address to the first network element; and the first network element sends the IP address to the terminal apparatus. When a terminal apparatus performs domain name query, a core network element determines an IP address of an application server based on location information of the terminal apparatus and a queried domain name. In this way, the terminal apparatus obtains an IP address of an application server close to the terminal apparatus, thereby improving service access efficiency of the terminal apparatus.

公开(公告)号：US11451286B2

公开(公告)日：2022-09-20

申请号：US16824859

申请日：2020-03-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yan Li ,  Xiaobo Wu ,  Fangyuan Zhu ,  Yang Xin

IPC: H04W76/11 ,  H04W80/10 ,  H04B7/06 ,  H04B7/0426

Abstract: This application provides a communication method. The communication method includes: obtaining, by the database network element, training data, where the training data includes service transmission data and network data; sending, by the database network element, the training data to the data analytics network element; and receiving, by the database network element, first information from the data analytics network element, where the first information includes a first feature index list set, a service identifier corresponding to each feature index list in the first feature index list set, and a DNN corresponding to the service identifier.

公开(公告)号：US11411667B2

公开(公告)日：2022-08-09

申请号：US17031524

申请日：2020-09-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fangyuan Zhu ,  Yan Li

IPC: H04J3/06 ,  H04W56/00

Abstract: A clock source determining method and an apparatus are provided. The method includes: A session management network element receives a session request from a mobility management network element. The session request includes information about a network slice and a DNN, and the session request is used to request to create a session. The session management network element determines clock source information corresponding to both the information about the network slice and the DNN. The session management network element sends the clock source information to an access network device. The clock source information is used by the access network device to perform clock synchronization with a terminal device.