WiFi Pre-fetch for Imminent Link Loss
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
User equipment (UE) often experiences a decrease in data exchange rate and increased costs when switching from a high-data-rate WiFi connection to a lower-data-rate cellular connection, as conventional systems do not anticipate disconnections from WiFi networks, leading to inefficient data management.
Innovation Solution
Implementing a pre-fetch operation that anticipatorily downloads data for select applications over the WiFi connection when a disconnect is imminent, allowing the UE to utilize the higher data exchange rate before switching to a cellular connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the UE prioritizes WiFi connection for high data exchange rate, then data transmission efficiency is improved, but connection stability deteriorates due to imminent disconnection without anticipation
Solution Approach 1:
The system performs preliminary actions by detecting conditions that indicate an imminent WiFi disconnection (such as signal strength thresholds or network condition changes) and proactively switching to the cellular connection before the WiFi connection is fully lost. This preliminary switch prevents data transmission interruptions and maintains connection stability while preserving the high data exchange rate advantage of WiFi during its operational period
2Stability of the object's composition
If the UE switches to cellular connection when WiFi disconnects, then connection continuity is maintained, but data exchange rate decreases
Solution Approach 1:
The system performs a preliminary switch to the cellular connection upon detecting conditions indicating imminent WiFi disconnection, rather than waiting for the WiFi connection to fully terminate. This proactive approach ensures seamless connection continuity while maintaining optimal data exchange rates by transitioning before the high-speed WiFi connection is lost
Solution Approach 2:
The system dynamically monitors WiFi connection conditions (such as signal strength, network status, and disconnection probability) and adaptively switches between WiFi and cellular connections based on real-time conditions. This dynamic approach optimizes the balance between connection continuity and data exchange rate by selecting the appropriate network at the optimal moment
3Reliability
If the UE uses cellular connection for data exchange, then connection reliability is maintained, but data transmission cost increases
Solution Approach 1:
The system performs a preliminary switch to the cellular connection when conditions indicate imminent WiFi disconnection, ensuring that data transmission can continue without interruption. By switching proactively rather than reactively, the system minimizes the duration of potential data loss or retransmission, thereby reducing the overall cost impact of using the higher-cost cellular network
Solution Approach 2:
The system maintains continuous data transmission by seamlessly transitioning from WiFi to cellular connection before the WiFi connection is lost. This continuity prevents data transmission interruptions, reconnections, and retransmissions, thereby optimizing the use of cellular data and reducing overall transmission costs despite the higher per-unit cost of cellular data
Data Source
AI summary
A method performed by a device that has a current first network connection to a first network. The device determining one or more current conditions associated with the device, determining whether a disconnect of the first network connection is imminent based on the one or more current conditions and responsive to determining that the disconnect is imminent, performing a pre-fetch operation to request data over the first network connection for at least one application resident on the device.