5G CAG Area Change Reporting Through AMF Location Messages
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Solution Overview
Problem
Existing 4G/5G systems face challenges in efficiently managing network slicing and user equipment (UE) registration and connection management, particularly in integrating diverse access networks and ensuring seamless service continuity across different network slices.
Innovation Solution
The implementation of enhanced features and functionalities in 4G/5G systems, including the use of network functions such as AMF, SMF, UPF, and PCF, to support network slicing, unified policy frameworks, and edge computing, enabling efficient management of UE registration, connection, and service continuity across various access networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing 4G/5G systems use traditional network slicing management, then network slicing can be implemented, but the management complexity increases and service continuity across different network slices becomes difficult to ensure
Solution Approach 1:
The patent merges registration management and connection management into a unified registration procedure. The AMF handles both registration and connection management functions within a single procedure, eliminating the need for separate management processes and reducing overall system complexity while maintaining network slicing capabilities.
Solution Approach 2:
The registration procedure is designed to be universal, handling multiple functions including registration, connection establishment, and service continuity management within a single procedure. This multi-functional approach allows the system to manage diverse network slices without requiring separate specialized procedures for each function.
2Reliability
If separate registration and connection management procedures are used, then each function can be optimized independently, but the overall process time increases and service continuity is disrupted
Solution Approach 1:
The patent combines registration management and connection management into a single unified registration procedure. This merging eliminates the sequential execution of separate procedures, reducing total process time while ensuring service continuity through coordinated handling of both functions within the same procedure framework.
Solution Approach 2:
The unified registration procedure performs preliminary actions for both registration and connection management simultaneously. By preparing and executing both functions in advance within the same procedure, the system avoids delays that would occur with sequential execution and ensures smoother service continuity.
3Adaptability or versatility
If access networks have high dependency on core networks, then core network control is strengthened, but the system becomes less adaptable to diverse access types and latency-sensitive services
Solution Approach 1:
The patent segments the management functions by introducing a location reporting handler that operates independently within the registration procedure. This segmentation allows the location reporting handler to manage location-related functions autonomously, reducing the dependency burden on the core network while maintaining overall control stability.
Solution Approach 2:
The location reporting handler acts as an intermediary component between the access network and core network. It mediates location-related communications and management tasks, enabling diverse access types to interact with the core network through a standardized interface, thereby reducing direct dependencies and enhancing adaptability.
4Reliability
If location reporting is handled within the registration procedure, then service continuity is improved, but the registration procedure complexity increases
Solution Approach 1:
The patent merges location reporting handling with the registration procedure, combining multiple functions into a single unified process. This merging ensures service continuity by handling location reporting in the context of registration, while the modular design of the location reporting handler helps manage the added complexity through structured organization.
Solution Approach 2:
The location reporting handler serves as a dedicated intermediary module within the registration procedure. It isolates location reporting logic from the main registration flow, making the procedure more manageable despite the added functionality. This modular intermediary approach maintains service continuity while preventing excessive complexity from overwhelming the registration process.
Data Source
AI summary
A first base station receives a first request to notify a change of a closed access group (CAG) area of a wireless device. The first base station sends, to an access and mobility management function (AMF), a location report message indicating the change of the CAG area of the wireless device.