Method and apparatus for establishing local area network across core network, storage medium and electronic device

By establishing a local area network across the core network and utilizing the information exchange between the SMF and UPF, the problem of establishing a local area network caused by the dynamic changes of the UPF in low-Earth orbit satellite networks was solved, and stable and reliable 5G local area network communication was achieved.

CN122421085APending Publication Date: 2026-07-17CHINA SATELLITE NETWORK INNOVATION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA SATELLITE NETWORK INNOVATION CO LTD
Filing Date
2026-05-06
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies cannot establish local area networks across core networks, especially in low-Earth orbit satellite networks, where static configurations cannot meet dynamic requirements due to the dynamic changes in the UPF.

Method used

The first session management function (SMF) sends SMF information of the first user equipment to the application function and receives network group SMF information of the virtual network group, including the second SMF information of the second user equipment. Then, it sends the information of the first user plane function (UPF) to the second SMF of the second user equipment and receives the information of the second UPF, thereby realizing tunnel interoperability between UPFs.

Benefits of technology

It enables the establishment of a local area network across the core network in a low-Earth orbit satellite network, ensuring the utilization rate and service quality of network resources, enhancing the flexibility and dynamic adaptability of the system, reducing the complexity of operation and maintenance, and improving the practicality and competitiveness of the network in NTN scenarios.

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Abstract

本发明公开了一种跨核心网的局域网建立方法、装置、存储介质及电子设备,其中,该方法包括:向应用功能发送第一用户设备的第一SMF信息;接收应用功能发送的虚拟网络组的网络组SMF信息,其中,虚拟网络组为第一用户设备所在的网络组,网络组SMF信息中包括第二用户设备的第二SMF信息;基于第二SMF信息向第二用户设备的第二SMF发送第一用户设备的第一用户面功能UPF的第一UPF信息;接收第二SMF发送的第二用户设备的第二UPF的第二UPF信息。通过本申请,解决了相关技术中存在无法跨核心网建立局域网的问题,达到跨核心网建立局域网效果。
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