5G Core Network Access Control via Dynamic Authorization Indications
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Solution Overview
Problem
Existing wireless networks face challenges in efficiently managing access control for User Equipment (UEs) to different core networks, leading to resource wastage and poor user experience due to unauthorized access attempts.
Innovation Solution
The system dynamically grants or revokes authorization for UEs to access specific core networks based on subscription, network load, and other factors, providing indications to UEs about their authorization status to avoid unnecessary access requests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If UEs attempt to access core networks without prior authorization checks, then access control flexibility is improved, but network resource wastage increases due to unsuccessful access attempts
Solution Approach 1:
The system performs preliminary authorization checks by the access control element before UEs attempt to access the core network. The access control element determines whether UEs are authorized to access specific core networks based on subscription information and network policies, and provides indications to UEs about their authorization status. This preliminary action prevents unsuccessful access attempts and reduces network resource wastage while maintaining access control flexibility.
2Ease of operation
If the system provides authorization indications to all UEs, then user experience is improved by avoiding unnecessary access requests, but system complexity increases
Solution Approach 1:
The system applies local quality by providing authorization indications selectively rather than universally. The access control element determines authorization status based on specific UE characteristics, subscription information, and network conditions, providing indications only to UEs that would benefit from them. This selective approach improves user experience for relevant UEs while avoiding unnecessary system complexity.
3Measurement precision
If dynamic authorization is implemented based on multiple factors, then access control precision is improved, but processing time increases
Solution Approach 1:
The system implements partial action by evaluating only the most relevant authorization factors for each UE access request rather than comprehensively checking all possible criteria. The access control element uses subscription information, network policies, and UE characteristics to make authorization determinations efficiently. This approach maintains access control precision while minimizing processing time delays.
Data Source
AI summary
A device described herein, such as a User Equipment (“UE”), may receive an indication that the device is not authorized to access a first type of core network; detect a first set of wireless signals associated with a first network that is associated with the first type of core network; detect a second set of wireless signals associated with a second network that is associated with a second type of core network; and request, based on detecting the first and second sets of wireless signals and further based on the indication that the device is not authorized to access the first type of core network, establishment of a communication session with the second network.