User Equipment for Area- and Time-Conditional Network Slices
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Solution Overview
Problem
There is no clear implementation method for network slices in the 5G System (5GS) that are valid only in specific areas and/or times, failing to meet the demands for diverse network services.
Innovation Solution
A User Equipment (UE) includes a transmission and/or reception unit and a controller that processes Single Network Slice Selection Assistance Information (S-NSSAI) and condition information, initiating a registration request procedure based on matching or non-matching conditions, allowing or disallowing network slice functions under specific criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If network slices are defined for specific service types or groups, then network service diversity is improved, but implementation complexity increases due to lack of clear methods for area and time-specific validation
Solution Approach 1:
The network slice selection assistance information is segmented into multiple condition fields (first condition field, second condition field, third condition field) that can independently evaluate different aspects such as area, time, and service type. This segmentation allows the system to manage complex slicing requirements through modular condition evaluation rather than monolithic implementation.
Solution Approach 2:
The network slice availability is made dynamic through time-dependent conditions. The fourth condition field enables time-based validation where network slices can be activated or deactivated at specific times, allowing the system to adapt network slice availability dynamically rather than statically configuring all slices permanently.
2Area of stationary object
If network slices are made available across all areas and times, then service coverage is improved, but network resource efficiency deteriorates due to unnecessary allocation in specific areas and times
Solution Approach 1:
The system applies local quality by enabling network slices to be valid only in specific areas through the second condition field. Different network slices can have different area validity conditions, allowing resources to be allocated precisely where needed rather than uniformly across the entire network coverage area.
Solution Approach 2:
The system implements periodic action through time-based condition fields that enable network slices to be activated or deactivated at specific times. This allows network resources to be allocated periodically when needed rather than continuously, improving resource efficiency while maintaining service coverage when required.
3Measurement precision
If condition information includes multiple conditions, then network slice control precision is improved, but processing complexity increases requiring multiple condition evaluations
Solution Approach 1:
The condition information is segmented into distinct condition fields (first, second, third, fourth condition fields) that can independently evaluate different aspects such as area, time, and service type. This segmentation allows the system to manage complex slicing requirements through modular condition evaluation rather than monolithic implementation.
Solution Approach 2:
The system performs preliminary action by pre-configuring multiple condition fields with their respective validation criteria before network slice activation. This allows the terminal to efficiently evaluate multiple conditions in a structured sequence rather than processing complex conditions ad hoc, reducing processing complexity while maintaining precision.
Data Source
AI summary
A communication mechanism for realizing a function related to management of information about network slices or a non-public network function is provided in 5GS. Provided are, in the 5GS, a method and a communication mechanism for procedures of initial registration of a UE and a periodic or mobility-based registration for implementing management of information about network slice or non-public network function. Furthermore, provided are a method and a communication mechanism after completion of the registration procedure and for a UE configuration update procedure. Furthermore, provided is a method for managing information about network slice in association with each procedure and state transition.