UE Network Slice Information Handling During Pending Authentication
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Solution Overview
Problem
The processing of updating network slice information related to network slice-specific authentication and authorization at a UE is not clarified, leading to the UE's inability to determine which network slice information to update and provide services using network slice functions after the authentication and authorization procedure is completed.
Innovation Solution
A wireless terminal equipped with a reception unit to receive information on pending network slice-specific authentication and authorization, along with a storage unit to manage first and second network slice information, including slices rejected or permitted by the network, enabling the UE to manage network slice information independently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network activates the procedure of network slice-specific authentication and authorization, then the security and authorization control for network slices is improved, but the processing of updating network slice information at the UE is not clarified, causing the UE to be unable to determine which network slice information to update
Solution Approach 1:
The patent segments network slice information into two distinct categories: first network slice information (indicating rejected slices) and second network slice information (indicating permitted slices). This segmentation is stored independently in the UE, allowing clear differentiation and management of slice statuses. The segmentation resolves the contradiction by providing structured organization that simplifies the UE's information management while maintaining reliable authentication and authorization control.
2Loss of information
If the UE stores multiple types of network slice information independently, then the clarity and manageability of network slice information is improved, but the storage structure and processing complexity at the UE increases
Solution Approach 1:
The storage unit is designed to store first network slice information and second network slice information independently and separately. This segmentation prevents information confusion and ensures clarity in managing different slice statuses (rejected vs. permitted), directly addressing the information loss problem while maintaining a structured storage approach.
Solution Approach 2:
The patent introduces third information as an intermediary indicator that explicitly indicates whether the network slice-specific authentication and authorization procedure is pending. This intermediary element mediates between the network's authentication procedures and the UE's information management, providing clear status indication without requiring complex processing logic in the UE.
3Adaptability or versatility
If the network provides detailed network slice information to the UE, then the service provision capability after authentication is improved, but the UE cannot determine which information to update without clear indicators
Solution Approach 1:
The third information acts as an intermediary indicator that clearly signals to the UE whether authentication and authorization procedures are pending for specific network slices. This intermediary element enables the UE to easily identify which network slice information requires updating, simplifying the operation process while maintaining comprehensive service provision capability through detailed slice information management.
Solution Approach 2:
The patent applies local quality by providing specific indicators (third information) only where needed - namely, for network slices undergoing authentication and authorization procedures. This targeted approach allows the UE to focus update operations on specific slices requiring authentication without being overwhelmed by global information management, thereby improving ease of operation while maintaining adaptability.
Data Source
AI summary
Network slice information management by a UE 10 has not been defined for a network slice for which network slice-specific authentication and authorization are pending. A UE may receive, from a core network node, first information indicating that a procedure of network slice-specific authentication and authorization is pending; store first network slice information including one or more pieces of first slice information or one or more pieces of second slice information, the first slice information indicating a slice that a network rejects to be used, the second slice information indicating a slice that the network permits to be used; and store, independently from the first network slice information, second network slice information corresponding to the first information.