Tune-Away Management for Multi-Subscription RF Resource Sharing
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Solution Overview
Problem
Multi-subscription multi-standby communication devices face data loss and degradation in active communication sessions due to tune-aways, particularly in sensitive applications like streaming media, as they share RF resources, leading to interruptions and corruption of data during frequency band changes.
Innovation Solution
Implement methods to monitor and manage tune-aways by determining data loss thresholds and adjusting them based on anticipated data loss, prioritizing subscriptions, and probabilistically applying tune-away blocking to minimize data loss during RF resource sharing, ensuring continuous data reception and reducing throughput degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If multiple subscriptions share a common RF resource chain to enable multi-standby operation, then device complexity and cost are reduced, but data loss and communication quality degradation occur during tune-away operations
Solution Approach 1:
The system performs preliminary actions by monitoring data loss in advance and determining data loss thresholds before tune-away operations occur. The network entity is notified of anticipated data loss conditions, allowing preventive measures to be taken before actual data loss occurs during RF resource sharing.
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring data loss during RF resource sharing and using this information to dynamically adjust tune-away operations. The network entity receives feedback about data loss conditions and can modify subscription prioritization and RF resource allocation accordingly.
2Adaptability or versatility
If tune-aways are permitted to allow subscriptions to access their respective networks, then network connectivity and versatility are improved, but data loss and throughput degradation occur in active communication sessions
Solution Approach 1:
The system applies dynamic principles by making subscription prioritization adjustable rather than fixed. The network entity can dynamically modify which subscription receives RF resource access based on real-time data loss conditions, active communication states, and network requirements, allowing the system to adapt between connectivity and data protection needs.
Solution Approach 2:
The system changes parameters by adjusting data loss thresholds and subscription priority levels based on monitored conditions. When data loss exceeds thresholds, the system modifies RF resource allocation parameters to prevent further loss, balancing connectivity requirements with data integrity.
3Reliability
If data loss thresholds are set low to protect active communication sessions, then data integrity is improved, but tune-away operations are excessively restricted reducing network responsiveness
Solution Approach 1:
The system applies partial action by selectively restricting tune-away operations only when and where data loss thresholds are exceeded, rather than imposing blanket restrictions. This allows tune-aways to proceed normally when data integrity is not at risk, maintaining network responsiveness while providing targeted protection when needed.
Data Source
AI summary
Various embodiments include a device processor that may monitor a data loss from a broadcast data stream received by a radio frequency (RF) resource of a multi-subscription multi-standby (MSMS) communication device using a first subscription. In response to determining that an amount of the monitored data loss plus an amount of expected data loss from anticipated tune-aways to a second subscription and a third subscription does not meet a first data loss threshold, the device processor may determine whether an amount of the monitored data loss plus an amount of expected data loss from an anticipated tune-away to a third subscription meets a second data loss threshold. The device processor may prevent the tune-away to the third subscription in response to determining that the amount of the monitored data loss plus the expected data loss from the anticipated tune-away to the third subscription meets the second data loss threshold.