UE Link Release Control for Application-Aware Power Saving
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Solution Overview
Problem
Existing cellular modem power consumption in mobile devices is a significant factor affecting battery life, particularly due to inefficient management of link states in 5G/NR communication systems, which do not account for application-specific traffic patterns.
Innovation Solution
Adaptive link status and configuration methods are implemented based on application traffic patterns to determine when to perform an early link release procedure, reducing power consumption by transitioning between connected and idle states more efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE maintains the cellular link in connected state for robust coverage and mobility support, then the reliability of communication is improved, but the power consumption increases
Solution Approach 1:
The patent dynamically adjusts link management strategies based on real-time traffic patterns and application requirements. The system transitions between connected and idle states adaptively, rather than maintaining a fixed state, thereby optimizing the balance between communication reliability and power consumption.
Solution Approach 2:
The system changes key parameters such as link release timing, discontinuous reception configurations, and RRC state transitions based on application traffic patterns. By modifying these parameters dynamically, the system achieves both reliable communication and reduced power consumption.
2Use of energy by moving object
If the UE releases the link early to save power, then the power consumption is reduced, but the user experience may be degraded
Solution Approach 1:
The system incorporates feedback mechanisms that monitor application traffic patterns, data burst characteristics, and communication requirements. This feedback enables the UE to make informed decisions about link release timing, ensuring that early release occurs only when it will not degrade user experience, thereby balancing power savings with service quality.
Solution Approach 2:
The system performs preliminary analysis of traffic patterns and application requirements before making link release decisions. By anticipating future communication needs based on historical data and current application state, the system can safely release links early without compromising user experience.
3Device complexity
If the UE uses traditional link management without application awareness, then the device complexity is reduced, but the power saving opportunity is lost
Solution Approach 1:
The application layer provides self-service by reporting its traffic patterns, data burst characteristics, and communication requirements to the cellular modem. This allows the modem to make informed link management decisions without requiring complex centralized control, thereby achieving power savings with minimal additional system complexity.
Solution Approach 2:
The system segments the link management function into application-specific and general components. Applications report their specific traffic patterns, while the modem handles general link management based on this information. This segmentation reduces overall complexity by distributing intelligence rather than concentrating it in a single complex controller.
Data Source
AI summary
A method and device for adaptive link status and configuration per the application traffic pattern for UE power saving. The method includes determining whether a UE power saving parameter is met. When the UE power saving parameter is met, performing a link management solution that includes an early link release procedure for releasing a link and reducing UE power consumption. When the UE power saving parameter is not met, not performing the link management solution that includes the early link release procedure for releasing the link and reducing UE power consumption.