A terminal access method, device and storage medium

By adding an N1 interface between N3IWF and AMF and utilizing the traffic feature identification model of NWDAF, the problem of non-3GPP terminals being unable to access 5G was solved, enabling secure and intelligent access and abnormal traffic monitoring for non-3GPP terminals.

CN122120882APending Publication Date: 2026-05-29CHINA MOBILE CHENGDU INFORMATION & TELECOMM TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA MOBILE CHENGDU INFORMATION & TELECOMM TECH CO LTD
Filing Date
2024-11-28
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing non-3GPP terminals cannot access 5G networks because they do not support NWu and N1 interfaces and protocols, making it difficult to promote the integration of non-3GPP networks with 5G technology.

Method used

An N1 interface is added between N3IWF and AMF, and an interaction process is introduced between N3IWF and NWDAF. Non-3GPP data traffic is identified through a traffic feature identification model. After identifying the feature data, the terminal requests 5G access through the N1 interface.

Benefits of technology

It enables secure and intelligent access to 5G networks for non-3GPP terminals that do not support NWu and N1 interfaces, and supports diverse application scenarios of non-3GPP networks, such as access for IoT, personal consumer terminals and specific industry terminals.

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Abstract

The application provides a terminal access method and device and a storage medium, which are applied to a first network element and include the following steps: receiving a first model sent by a second network element, the first model being used for feature identification of non-3GPP data traffic; in the case that feature data is identified from the non-3GPP data traffic, sending a 5G network access request to a third network element through an N1 interface; the 5G network access request is used for requesting the third network element to access a terminal to the 5G, so that a non-3GPP terminal which does not support an NWu and an N1 interface can access the 5G through the first network element.
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