Restricted Registration Control for NPN Terminal Access
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Solution Overview
Problem
Current communication networks lack a mechanism for managing and controlling the configuration of third-party subscription data on terminal devices in non-public networks (NPNs), leading to potential unauthorized access and prolonged usage by terminal devices.
Innovation Solution
Implement a restricted registration timer and deregistration procedure managed by an access management network element to control terminal device access and ensure timely detachment from the network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminal devices are allowed to register and access the network without restriction, then network service availability is improved, but network security deteriorates due to potential malicious camping and unauthorized access
Solution Approach 1:
The network side performs preliminary actions by configuring third-party subscription data on the terminal device before the device can access the network. The access management network element receives a registration request, determines that restricted registration is required based on configuration type indication information, and starts a restricted registration timer. This preliminary configuration and timer setup prevents unauthorized access before it can occur, while still allowing legitimate devices to register and receive necessary configuration data.
2Duration of action of moving object
If terminal devices can remain registered for extended periods, then service continuity is improved, but network control capability deteriorates due to inability to enforce timely detachment
Solution Approach 1:
The access management network element implements a feedback mechanism through the restricted registration timer. When the timer expires, the network side automatically initiates a deregistration procedure to force the terminal device to detach from the network. This feedback loop ensures that terminal devices cannot remain registered indefinitely, maintaining network control capability while allowing sufficient time for legitimate service operations. The timer provides automatic enforcement of registration duration limits without requiring continuous manual intervention.
Data Source
AI summary
This application provides example communication methods and example apparatuses. One example method includes receiving, by an access management network element, a registration request from a terminal device. The access management network element can then obtain configuration type indication information. The access management network element can then determine, based on the configuration type indication information, to perform restricted registration. The access management network element can then start a restricted registration timer. After the restricted registration timer expires, the access management network element can initiate a deregistration procedure to deregister the terminal device from a network.