Time Synchronization Service Activation and Deactivation by UE Mobility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current systems lack the ability for an AF to activate and deactivate a time synchronization service in response to a UE entering or leaving a specific coverage area, which is crucial for efficient time synchronization management.
Innovation Solution
A method involving a time synchronization entity (TSE) that receives UE and coverage area information to invoke a subscription service for notifications when the UE enters or leaves an area of interest, or sends a request to a PCF to manage these notifications, enabling activation and deactivation of the time synchronization service based on UE mobility events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the time synchronization service is activated continuously for all UEs, then time synchronization availability is improved, but resource consumption and system complexity increase
Solution Approach 1:
The patent implements dynamic service activation and deactivation based on UE mobility events. The AF receives notifications when UEs enter or leave coverage areas and accordingly activates or deactivates the time synchronization service. This dynamic approach ensures service availability when needed while reducing complexity and resource usage when UEs are outside the coverage area.
Solution Approach 2:
The system performs preliminary configuration by the AF, which sets up the service parameters and coverage area information in advance. When a UE enters the coverage area, the service can be quickly activated using the pre-configured parameters, reducing the need for complex real-time decision-making and simplifying the overall service management.
2Reliability
If the time synchronization service is activated for all UEs regardless of location, then service coverage is improved, but resource utilization deteriorates
Solution Approach 1:
The patent applies local quality by activating the time synchronization service only in specific coverage areas where it is actually needed. The AF configures service parameters for specific coverage areas, and the service is activated only when UEs are within those areas. This localized approach improves resource utilization efficiency while maintaining service coverage where required.
Solution Approach 2:
The system uses event-triggered periodic action where the service is activated and deactivated based on periodic mobility events (UE entering or leaving coverage areas). This ensures the service is available when needed while avoiding continuous operation, thereby improving resource utilization efficiency without compromising service coverage availability.
3Measurement precision
If manual activation and deactivation of time synchronization service is required, then service control precision is improved, but operational complexity increases
Solution Approach 1:
The patent implements automatic feedback-based control where the AF receives notifications about UE mobility events and automatically activates or deactivates the time synchronization service accordingly. This feedback mechanism maintains precise service control based on actual UE location while eliminating manual operations, thereby improving ease of operation without sacrificing control precision.
Solution Approach 2:
The system enables self-service operation where the AF autonomously manages service activation and deactivation based on received mobility event notifications. The AF uses pre-configured service parameters to automatically make activation decisions, eliminating the need for manual intervention while maintaining precise control over service activation based on actual network conditions.
Data Source
AI summary
A method 600 performed by a TSE (e.g., a TSCTSF) The method includes receiving a first request comprising i) an ID associated with at least a first UE (e.g., the ID is associated only with the first UE, the ID is associated with a group of UEs that includes the first UE, or the ID identifies any UE) and ii) coverage area (CA) information specifying a CA. In response to receiving the create service request, the TSE either: i) invokes a subscription service to receive a notification whenever the first UE enters (moves into) or leaves (moves out of) an AoI, or ii) sends to a PCF a second request comprising the CA information, wherein the second requests is configured to cause the PCF to invoke the subscription service to receive a notification whenever the first UE moves into or moves out of an AoI, wherein the AoI is identical to the CA or the AoI is a subset of the CA.