Memory Device Background Operation Deferral for Low Host Battery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Memory devices continue background operations even when configured for low power modes, leading to increased power consumption and reduced efficiency when the host device has a low battery status.
Innovation Solution
Implementing a low battery status indication mechanism that causes memory devices to defer or refrain from performing background operations, store them in a pending job queue, and switch control to the host device for managing these operations when the host battery is low.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If memory device continues background operations in low power mode, then data reliability is maintained, but power consumption increases
Solution Approach 1:
The system dynamically adjusts background operation execution based on real-time battery status detection. When low battery status is detected, the memory device suspends background operations to reduce power consumption. When battery status improves, background operations are resumed to maintain data reliability, thus dynamically balancing between reliability and energy consumption.
Solution Approach 2:
The system changes the operational parameter of background operation execution based on battery status. By detecting battery level and changing the execution state of background operations accordingly, the system optimizes the trade-off between maintaining data reliability and reducing power consumption under different power conditions.
2Use of energy by moving object
If memory device defers background operations during low battery status, then power consumption is reduced, but operation completion time increases
Solution Approach 1:
The system implements periodic monitoring of battery status and periodically checks whether to resume background operations. By using periodic action, the system ensures that background operations are resumed promptly when power conditions improve, minimizing the delay in operation completion while maintaining low power consumption during low battery periods.
Data Source
AI summary
In some aspects, a memory system may detect that a host device of the memory system has a low battery status using a comparison of a battery level of the host device to a low battery threshold. The memory system may set, in association with detecting that the host device has the low battery status, a low battery status indication of a status register for a memory device of the memory system to indicate that the host device has the low battery status. The memory system may cause, in association with the status register indicating the low battery status indication, one or more background operations of the memory device to be deferred or unexecuted. Numerous other aspects are described.