Mobile Terminal Standby Power Reduction via Event Alignment
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Solution Overview
Problem
Mobile terminals face significant battery life limitations due to high power consumption during standby mode, especially from frequent wake-up events caused by communication applications, which conventional power-saving methods often compromise user experience by disabling connectivity features.
Innovation Solution
A method that determines alignment processing moments after entering standby mode, controlling alignable wake-up events to process them collectively, and adding unalignable events to a white list for immediate processing, thereby reducing power consumption without affecting user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If communication applications are enabled in standby mode, then user experience is improved, but power consumption increases significantly
Solution Approach 1:
The system pre-determines alignment processing moments and prepares to buffer wake-up events before they occur. By having the processing schedule ready in advance and buffering events as they come in, the system performs preliminary actions that enable efficient batch processing later, reducing the need for frequent active states while maintaining application availability
Solution Approach 2:
The patent introduces a buffering mechanism as an intermediary between wake-up events and processing. Events are stored in a buffer during standby mode and processed collectively at alignment moments, acting as a mediator that decouples event occurrence from processing timing, thereby reducing power consumption while maintaining system responsiveness
2Speed
If wake-up events are processed immediately, then responsiveness is improved, but power consumption increases
Solution Approach 1:
The system transitions from continuous immediate processing to periodic batch processing at alignment moments. By processing wake-up events periodically at predetermined alignment moments rather than immediately upon occurrence, the system reduces the frequency of active states while maintaining acceptable responsiveness for non-critical events
Solution Approach 2:
Multiple wake-up events that occur between alignment moments are merged into a single batch for collective processing. Instead of activating the processor separately for each event, the system combines multiple events and processes them together at the next alignment moment, reducing overall processing frequency and power consumption
3Use of energy by moving object
If communication features are disabled, then power consumption is reduced, but user experience deteriorates
Solution Approach 1:
The system dynamically adjusts its operation mode based on the type of wake-up event. Critical events in the white list trigger immediate processing to maintain user experience, while non-critical events are buffered for later batch processing. This dynamic approach allows the system to optimize power consumption without completely disabling communication features
Solution Approach 2:
The patent applies different processing qualities to different types of wake-up events. By categorizing events into white-listed critical events and non-critical buffered events, the system provides high-quality immediate response for important communications while using lower-power batch processing for less critical events, thereby maintaining overall user experience while reducing average power consumption
Data Source
AI summary
Saving power in a mobile terminal includes determining alignment processing moments after the mobile terminal enters a standby mode. Alignable wakeup events, which occur during alignment processing periods corresponding to each alignment processing moment, are thus controlled to commence related processing at each of the alignment processing moments. Power consumption caused by various wakeup events in a standby mode may thus be reduced and battery life of the mobile terminal may thus be improved.