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公开(公告)号：US11510118B2
公开(公告)日：2022-11-22
申请号：US16881446
申请日：2020-05-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Dekui Sun
Abstract: This application provides a server switching method and apparatus, and a communications system. The method includes: receiving, by a terminal, a first notification message, where the first notification message includes an address of a second server; sending, by the terminal, to-be-sent service data to a first server and the second server based on the first notification message; receiving, by the terminal, downlink data from the first server; obtaining, by the terminal, data processing indication information; when obtaining the data processing indication information, sending, by the terminal, the to-be-sent service data to the second server; and receiving, by the terminal, downlink data from the second server. The server switching method and apparatus, and the communications system in the embodiments of this application can implement seamless switching, ensure service continuity, avoid service interruption caused when a terminal switches between servers, and help meet an end-to-end latency requirement.
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公开(公告)号：US11432297B2
公开(公告)日：2022-08-30
申请号：US16862001
申请日：2020-04-29
Applicant: Huawei Technologies Co., Ltd.
Abstract: A method for improving service reliability includes deciding, by a session function entity in a network, to initiate establishment of at least two transmission paths between a terminal and the user plane function entity, and instructing the terminal or the user plane function entity to transmit same data on the at least two paths. The user plane function allocates, based on a notification of the session function entity, user plane resources to the at least two transmission paths, and transmits the same data with the terminal on the at least two transmission paths. A core network initiates the establishment of the at least two transmission paths to the terminal. Two access devices may independently establish the at least two transmission paths.
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公开(公告)号：US20200260457A1
公开(公告)日：2020-08-13
申请号：US16862001
申请日：2020-04-29
Applicant: Huawei Technologies Co., Ltd.
IPC: H04W72/08
Abstract: A method for improving service reliability includes deciding, by a session function entity in a network, to initiate establishment of at least two transmission paths between a terminal and the user plane function entity, and instructing the terminal or the user plane function entity to transmit same data on the at least two paths. The user plane function allocates, based on a notification of the session function entity, user plane resources to the at least two transmission paths, and transmits the same data with the terminal on the at least two transmission paths. A core network initiates the establishment of the at least two transmission paths to the terminal. Two access devices may independently establish the at least two transmission paths.
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Patent Agency Ranking
公开(公告)号：US11606726B2
公开(公告)日：2023-03-14
申请号：US16828562
申请日：2020-03-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dekui Sun , Han Zhou , Zaifeng Zong
Abstract: A method for detecting quality of service of a service includes obtaining, by a packet sending device, detection indication information, where the detection indication information is used to instruct the packet sending device to detect quality of service of a service; and sending, by the packet sending device, a detection packet to a packet receiving device based on the detection indication information, where the detection packet is used to detect the quality of service of the service.
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15.发明申请公开(公告)号：US20210368397A1
公开(公告)日：2021-11-25
申请号：US17397056
申请日：2021-08-09
Applicant: Huawei Technologies Co., Ltd.
Abstract: A service continuity implementation method, a device, and a service continuity implementation system, to ensure service continuity in a handover process, where the method includes: selecting, by a session management function entity, a target user plane function entity to serve a terminal; sending, by the session management function entity, a first message to a control device; receiving, by the session management function entity, indication information of a first application server (AS) from the control device; and sending, by the session management function entity, a first routing rule to the target user plane function entity based on the indication information of the first AS, where the first routing rule specifies that data whose destination address is an address of the first AS is to be sent to the first AS.
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16.发明授权公开(公告)号：US11115876B2
公开(公告)日：2021-09-07
申请号：US16716049
申请日：2019-12-16
Applicant: Huawei Technologies Co., Ltd.
Abstract: A service continuity implementation method, a device, and a service continuity implementation system, to ensure service continuity in a handover process, where the method includes: selecting, by a session management function entity, a target user plane function entity to serve a terminal; sending, by the session management function entity, a first message to a control device; receiving, by the session management function entity, indication information of a first application server (AS) from the control device; and sending, by the session management function entity, a first routing rule to the target user plane function entity based on the indication information of the first AS, where the first routing rule specifies that data whose destination address is an address of the first AS is to be sent to the first AS.
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公开(公告)号：US20210075723A1
公开(公告)日：2021-03-11
申请号：US17100359
申请日：2020-11-20
Applicant: Huawei Technologies Co., Ltd.
IPC: H04L12/741 , H04W4/06 , H04L12/761 , H04L12/18 , H04W4/40
Abstract: The wireless communication method in this application includes: receiving, by a first user plane function (UPF) entity, a first message sent by a session management function (SMF) entity, where the first message includes a multicast address of a group and session information of at least one second terminal; and duplicating, by the first UPF entity, received first service data to obtain N copies of first service data, and sending the duplicated first service data to each second terminal based on the multicast address and the session information of the at least one second terminal, where the first service data is data that is from a first terminal and whose destination address is the multicast address, and N is a total quantity of the at least one second terminal. Embodiments of this application can implement a wireless communication method applied to V2X.
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18.发明申请公开(公告)号：US20190274181A1
公开(公告)日：2019-09-05
申请号：US16415148
申请日：2019-05-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Fenqin Zhu , Dekui Sun , Wenfu Wu
Abstract: A method and an apparatus for initiating user plane path re-establishment and a communications system are disclosed. The method includes: determining, by a session management function entity based on first location information of a terminal device, a session service area to which a current session of the terminal device belongs; and after receiving second location information of the terminal device sent by a mobility management function entity, if determining that the second location information is not within the session service area, instructing the terminal device to initiate a re-establishment procedure for the current session or initiate a handover procedure. Due to introduction of the session service area, when the terminal device moves back and forth at edges of service areas of two adjacent user plane function entities, a ping-pong effect caused by frequent handover between the two user plane function entities is avoided, and user experience is improved.
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