Network Slice Access Management for Temporary Slice Availability
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Solution Overview
Problem
Existing network slice management systems fail to efficiently handle temporary network slices, leading to resource wastage and registration failures when user equipment (UE) does not apply timing and location criteria consistently across different access types, resulting in inefficient use of radio and core network resources.
Innovation Solution
A method and apparatus for network slice access management that allows user equipment (UE) to prevent transmission of requests for temporarily unavailable slices by utilizing policies or updated lists of allowed network slices, ensuring consistency across 3GPP and non-3GPP access types based on time and location criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If UE requests temporary network slices without checking availability across access types, then UE can potentially access more network slices, but registration failures and resource wastage occur
Solution Approach 1:
The network node performs preliminary actions by determining the availability status of temporary network slices before the UE attempts registration. The network node receives availability information from other network nodes and proactively identifies which temporary slices are unavailable, then communicates this information to the UE in advance through the allowed network slice list, preventing futile registration attempts
Solution Approach 2:
The network node implements a feedback mechanism by providing availability information about temporary network slices to the UE. The UE uses this feedback to adjust its registration behavior, excluding unavailable slices from its registration requests. This feedback loop prevents registration failures and enables the UE to adapt its access strategy based on current network conditions
2Productivity
If UE attempts to register with temporarily unavailable slices, then UE shows high initiative in service access, but network resources are wasted on failed registration attempts
Solution Approach 1:
The network node applies preliminary anti-action by proactively identifying unavailable temporary network slices and communicating this information to the UE before the UE attempts registration. The UE uses this information to prevent (anti-action) registration attempts on unavailable slices, thereby avoiding the waste of network resources that would result from processing and rejecting these registration requests
3Loss of information
If network nodes manage slice availability information centrally, then slice availability is accurately tracked, but system complexity increases
Solution Approach 1:
The network node implements a universal mechanism that handles both permanent and temporary network slice management through the same interface and procedure. The allowed network slice list encompasses all slice types, and the availability determination logic uniformly processes both permanent slices (always available) and temporary slices (conditionally available), eliminating the need for separate management systems and reducing overall complexity
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Specifically, the disclosure related to method and apparatus for a network slice access management for a user equipment in a wireless communication system. The method includes receiving, from an access and mobility management function (AMF) entity, temporary slice related information for a first single network slice selection assistance information (S-NSSAI). Further, the method includes identifying whether the first S-NSSAI is available or not available. Further, the method includes transmitting, to the AMF entity, a registration request message including a second S-NSSAI based on the identification. Further, the registration request message does not include the first S-NSSAI.