UE and AMF Timer Handling for Updated Unavailability Periods
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Solution Overview
Problem
Existing systems lack efficient control methods for managing unavailability periods during events like OS upgrades or modem updates in 5G communication systems, leading to inefficiencies in UE and network behavior.
Innovation Solution
Incorporating a controller and storage unit in UE and AMF to manage and update unavailability periods by stopping and restarting timers with updated durations during such events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the unavailability period is updated while a timer is running, then the system can adapt to changing events (e.g., extended OS upgrade duration), but the timer management becomes complex and may lead to inconsistent state
Solution Approach 1:
The timer automatically detects when its associated unavailability period is updated and self-corrects by stopping and restarting with the new duration. This self-service mechanism eliminates the need for external controller intervention, reducing complexity while maintaining adaptability to extended unavailability periods
Solution Approach 2:
The system implements feedback by monitoring changes to the unavailability period and automatically adjusting the timer accordingly. When the unavailability period is extended or modified, the timer receives feedback about the change and adjusts its operation to match the new period, ensuring consistent state management
2Device complexity
If the timer continues running with the original unavailability period, then timer management is simple, but the system cannot reflect updated event durations (e.g., extended security patch update time)
Solution Approach 1:
The timer transitions from a static, fixed-duration mechanism to a dynamic one that automatically adjusts its duration based on updated unavailability period values. This dynamic behavior ensures the timer always reflects the current event status while maintaining automatic operation without complex external control
Solution Approach 2:
The timer autonomously detects updates to the unavailability period and self-corrects by stopping and restarting with the new duration. This self-service capability ensures accuracy reflects updated event durations without requiring complex external timer management mechanisms
3Ease of operation
If the system does not stop and restart the timer upon unavailability period update, then operation is simple, but time tracking becomes inaccurate during extended events
Solution Approach 1:
The timer efficiently handles updates by stopping and restarting in quick succession when the unavailability period changes. This skipping approach minimizes disruption to operation simplicity while ensuring accurate time tracking reflects the extended or modified event duration
Solution Approach 2:
The timer automatically detects unavailability period updates and self-corrects its timing without external intervention. This self-service mechanism maintains operational simplicity while ensuring time tracking accuracy by automatically adjusting to extended event durations
Data Source
AI summary
To clarify an efficient control method related to an unavailability period, and UE behavior and network behavior associated with the unavailability period. In a case of updating the unavailability period while a timer using the unavailability period is running, a UE updates the stored unavailability period, stops the timer, and starts the timer by using the updated unavailability period.