公开(公告)号：US12207345B2

公开(公告)日：2025-01-21

申请号：US17551551

申请日：2021-12-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tingfang Tang ,  Yan Li ,  Hui Ni

IPC: H04W4/00 ,  H04W4/02 ,  H04W4/021 ,  H04W8/12 ,  H04W48/16 ,  H04W80/10

Abstract: A communication method and apparatus, where the method includes: a session management network element sending location area information; a mobility management network element receiving the location area information from the session management network element; obtaining location information of a terminal; determining, based on the location area information and the location information, that the terminal is located outside a service area indicated by the location area information; and in response to the determination, sending, to the session management network element, a message for triggering update of a session management information.

公开(公告)号：US11218867B2

公开(公告)日：2022-01-04

申请号：US16930710

申请日：2020-07-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tingfang Tang ,  Yan Li ,  Hui Ni

IPC: H04W4/00 ,  H04W8/12 ,  H04W4/021 ,  H04W4/02 ,  H04W48/16 ,  H04W80/10

Abstract: A communication method and apparatus, where the method includes: a session management network element sending location area information; a mobility management network element receiving the location area information from the session management network element; obtaining location information of a terminal; determining, based on the location area information and the location information, that the terminal is located outside a service area indicated by the location area information; and in response to the determination, sending, to the session management network element, a message for triggering update of a session management information.

公开(公告)号：US10785635B2

公开(公告)日：2020-09-22

申请号：US16688082

申请日：2019-11-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tingfang Tang ,  Yan Li ,  Hui Ni

IPC: H04W4/00 ,  H04W8/12 ,  H04W4/021 ,  H04W4/02 ,  H04W48/16 ,  H04W80/10

Abstract: A communication method and apparatus, where the method includes: a session management network element sending location area information; a mobility management network element receiving the location area information from the session management network element; obtaining location information of a terminal; determining, based on the location area information and the location information, that the terminal is located outside a service area indicated by the location area information; and in response to the determination, sending, to the session management network element, a message for triggering update of a session management information.

公开(公告)号：US11071167B2

公开(公告)日：2021-07-20

申请号：US16726439

申请日：2019-12-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiao Yang ,  Tingfang Tang ,  Yan Li ,  Hui Ni

IPC: H04W80/10 ,  H04W76/12 ,  H04W76/11 ,  H04M15/00 ,  H04W8/08 ,  H04W48/16 ,  H04L29/12

Abstract: Embodiments of this application provide a session management method, apparatus, and system. The method includes: receiving, by a first session management network element, a session request message from a second session management network element; allocating, by the first session management network element, Internet protocol IP information of a terminal device to a first session based on the session request message, where the first session is a branch of an established second session; and sending, by the first session management network element, the IP information of the terminal device to the second session management network element, where the IP information is used to obtain policy information corresponding to the IP information.

公开(公告)号：US20200274805A1

公开(公告)日：2020-08-27

申请号：US16874074

申请日：2020-05-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiao Yang ,  Tingfang Tang ,  Yan Li ,  Yongcui Li

IPC: H04L12/741 ,  H04L29/12 ,  H04L29/08 ,  H04L12/28 ,  H04L12/947

Abstract: A data processing method includes obtaining, by a session management function (SMF) network element from an external network element, a media access control (MAC) address of a terminal device and an Internet Protocol (IP) address corresponding to the MAC address, and sending, by the SMF network element, the MAC address and the IP address to a first user plane function (UPF) network element, where the MAC address and the IP address are used to send an Address Resolution Protocol (ARP) message, and the ARP message includes the MAC address and the IP address.

公开(公告)号：US20200100095A1

公开(公告)日：2020-03-26

申请号：US16688082

申请日：2019-11-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tingfang Tang ,  Yan Li ,  Hui Ni

IPC: H04W8/12 ,  H04W80/10 ,  H04W4/021 ,  H04W4/02 ,  H04W48/16

Abstract: A communication method and apparatus, where the method includes: a session management network element sending location area information; a mobility management network element receiving the location area information from the session management network element; obtaining location information of a terminal; determining, based on the location area information and the location information, that the terminal is located outside a service area indicated by the location area information; and in response to the determination, sending, to the session management network element, a message for triggering update of a session management information.

公开(公告)号：US20170223410A1

公开(公告)日：2017-08-03

申请号：US15490967

申请日：2017-04-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tingfang Tang ,  Xin Liu

IPC: H04N21/44 ,  H04N21/61 ,  H04N21/84

CPC classification number: H04N21/44016 ,  H04N7/08 ,  H04N21/4312 ,  H04N21/6106 ,  H04N21/84 ,  H04N21/8456 ,  H04N21/8543

Abstract: A mosaic service presentation method is disclosed, including receiving a media presentation description file that describes a mosaic service, where the media presentation description file describes presentation locations of logical presentation cells of the mosaic service and mosaic media of the logical presentation cells; obtaining the mosaic media of the logical presentation cells from a multimedia broadcast multicast service (MBMS) client according to a logical-presentation-cell mosaic-media description provided in the media presentation description file. The method also includes presenting the mosaic media at the presentation locations of the logical presentation cells according to a logical-presentation-cell presentation-location description provided in the media presentation description file.

公开(公告)号：US11464070B2

公开(公告)日：2022-10-04

申请号：US16661101

申请日：2019-10-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tingfang Tang ,  Yan Li ,  Hui Ni

IPC: H04W80/10 ,  H04W76/34 ,  H04W8/12 ,  H04W48/16

Abstract: A data buffering method including: a session management function (SMF) interacting with a first user plane function (UPF1) and a second UPF2, such that the UPF1 sends first downlink data of a first session to an access network device via UPF2, where UPF1 is an anchor of the first session; and the SMS releasing UPF2 in a procedure in which a terminal device enters an idle state and a transmission resource associated with the first session in an access network is released, where UPF1 buffers incoming second downlink data of the first session. After the terminal device is switched to a connected state, both a transmission path of incoming third downlink data of the first session and that of the buffered second downlink data pass through UPF1, UPF3, the access network device, and the terminal device successively.

公开(公告)号：US20220109973A1

公开(公告)日：2022-04-07

申请号：US17551551

申请日：2021-12-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tingfang Tang ,  Yan Li ,  Hui Ni

IPC: H04W8/12 ,  H04W48/16 ,  H04W80/10 ,  H04W4/02 ,  H04W4/021

Abstract: A communication method and apparatus, where the method includes: a session management network element sending location area information; a mobility management network element receiving the location area information from the session management network element; obtaining location information of a terminal; determining, based on the location area information and the location information, that the terminal is located outside a service area indicated by the location area information; and in response to the determination, sending, to the session management network element, a message for triggering update of a session management information.

公开(公告)号：US11140592B2

公开(公告)日：2021-10-05

申请号：US16796550

申请日：2020-02-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongcui Li ,  Tingfang Tang ,  Yan Li

IPC: H04W36/00 ,  H04W36/32

Abstract: This application relates to the field of wireless communications technologies, and provides a method for selecting a radio access network device. The method includes: obtaining, by a first RAN device, capability information of a second RAN device, where the capability information is used to indicate an LADN supported by the second RAN device; and sending, by the first RAN device, a handover request message to the second RAN device.