Dual Standby DSDS Mobility Detection Power Save Duration
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Solution Overview
Problem
In wireless communication systems, mobile devices sharing a single radio resource for multiple subscriptions face challenges with high power consumption and increased page loss due to independent system acquisition for each subscription, especially in mobility-related scenarios, leading to delayed system acquisition and higher battery usage.
Innovation Solution
A method for determining a power save duration for an out-of-service subscription based on the mobility status of a mobile device, allowing the device to optimize power usage and reduce page loss by adjusting the power saving mode accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If independent system acquisition is performed for each subscription, then each subscription can be served independently, but power consumption increases and page loss probability increases
Solution Approach 1:
The patent merges the system acquisition processes of multiple subscriptions by implementing a unified acquisition mechanism. When the mobile device is out of service on one subscription, it performs system acquisition for other subscriptions in a coordinated manner rather than independently, thereby reducing redundant operations and lowering power consumption while maintaining service reliability.
Solution Approach 2:
The patent applies preliminary action by detecting mobility status changes before they affect service availability. When a mobility status change is detected, the device proactively performs system acquisition for affected subscriptions in advance, preventing page loss and ensuring continuous service without requiring continuous monitoring and acquisition operations.
2Reliability
If the mobile device performs system acquisition frequently to detect mobility changes, then service continuity is improved, but power consumption increases
Solution Approach 1:
The patent implements feedback mechanisms by monitoring mobility status changes and using this information to dynamically adjust system acquisition operations. When mobility status changes are detected, the device activates targeted system acquisition only when necessary, rather than performing continuous acquisition, thus maintaining service continuity while reducing power consumption.
Solution Approach 2:
The patent applies dynamics by making the system acquisition process adaptive rather than static. The acquisition operations are dynamically adjusted based on real-time mobility status detection, activating only when needed and remaining inactive during stable conditions, thereby optimizing the balance between service continuity and power consumption.
3Device complexity
If the mobile device shares a single radio resource for multiple subscriptions, then device complexity is reduced, but page loss probability increases due to radio unavailability
Solution Approach 1:
The patent applies preliminary action by detecting mobility status changes before they cause page loss. When a mobility status change is detected, the device proactively performs system acquisition for affected subscriptions before the radio becomes unavailable, thereby preventing page loss while maintaining the simplicity of single radio resource sharing.
Data Source
AI summary
Aspects of the present disclosure relate to wireless communications and techniques for determining a power save duration for an out of service subscription based, at least in part, on a detected mobility status change of a mobile device. Aspects generally include a mobile device, that shares a single radio resource for establishing connections with a first and second subscription, using a detected mobility status change to determine a power saving duration for an out of service subscription.