Network Slice Registration Compatibility Control
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Solution Overview
Problem
In wireless communication systems, managing simultaneous registrations to multiple network slices is challenging due to compatibility restrictions, leading to sub-optimal network slice selection for user equipment (UE) when network slice-specific authentication and authorization procedures are completed.
Innovation Solution
A method and apparatus for updating the UE configuration by determining compatibility and priority of network slices, sending configuration update commands to include or exclude specific Single Network Slice Selection Assistance Information (S-NSSAI) in the Allowed or Pending NSSAI, ensuring optimal network slice registration based on authentication and authorization outcomes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple network slices are simultaneously registered to meet diverse service requirements, then service versatility is improved, but compatibility restrictions cause registration failures and reduce reliability
Solution Approach 1:
The patent performs network slice compatibility verification and authentication before final registration. The AMF checks whether the requested network slice is compatible with already registered slices, and initiates authentication procedures in advance to prevent registration failures, thus ensuring reliable multi-slice registration while maintaining service versatility
Solution Approach 2:
The patent implements a feedback mechanism where the AMF continuously monitors the registration status and compatibility of multiple network slices. When a registration attempt is made, the system checks compatibility with existing slices and provides feedback on whether the registration should proceed, allowing dynamic adjustment of slice registrations to maintain both versatility and reliability
2Reliability
If network slice compatibility restrictions are enforced to ensure reliable connections, then registration reliability is improved, but the ability to support diverse services across multiple slices is reduced
Solution Approach 1:
The patent implements dynamic network slice registration management where the AMF adjusts registration decisions based on real-time compatibility assessments. The system dynamically determines which slices can be simultaneously registered by evaluating compatibility relationships, allowing the maximum number of diverse services to be supported while maintaining connection reliability through continuous compatibility monitoring
3Stability of the object's composition
If configuration updates are sent to exclude incompatible network slices, then registration compatibility is improved, but additional signaling overhead increases network complexity
Solution Approach 1:
The patent extracts and processes compatibility information during the initial registration and authentication phases. By identifying incompatible slices early and excluding them through targeted configuration updates rather than comprehensive signaling, the system maintains registration compatibility while minimizing signaling overhead and network complexity
Data Source
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AI summary
Techniques to update a user equipment configuration which has requested a network slice when registering to a network are provided. For example, a method to update a user equipment configuration is disclosed. The method comprises: after a network slice-specific authentication and authorization procedure for a first single network slice selection assistance information associated with the requested network slice is successfully completed, sending to the user equipment a configuration update command to update a user equipment configuration of the user equipment, based on a determination that no common network slice simultaneous registration group value is associated with the first single network slice selection assistance information and all single network slice selection assistance information in an allowed NSSAI for the user equipment. The configuration update command comprising a new pending NSSAI for the user equipment, the pending NSSAI excluding the first single network slice selection assistance information.