Per-Application Link Selection Across Wi-Fi, Cell, and Wired Access
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Solution Overview
Problem
Current technologies fail to ensure robust selection of the best available link between multiple simultaneously available link types for cloud applications when users transition between different network environments, such as workplaces and remote locations, leading to inconsistent security and reliability.
Innovation Solution
A method and system that identifies running cloud applications by monitoring TCP connections, tests link quality based on latency, jitter, and packet loss, and selects the best link for each application independently, allowing simultaneous use of Wi-Fi, cell, and wired links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple link types (Wi-Fi, cell, wired) are made simultaneously available, then link selection flexibility and reliability are improved, but device complexity and configuration difficulty increase
Solution Approach 1:
The system automatically performs link quality testing, application identification, and link selection without user intervention. The controller autonomously monitors TCP connections, tests link qualities using test applications, and determines the best link for each cloud application, eliminating the need for manual configuration while maintaining multiple simultaneous links
Solution Approach 2:
The system dynamically changes link selection parameters (latency, jitter, packet loss) based on real-time quality testing results. Different links are selected for different applications based on their specific requirements and current network conditions, allowing flexible adaptation without increasing configuration complexity
2Measurement precision
If link quality is tested for each cloud application independently, then link selection accuracy is improved, but measurement and monitoring complexity increase
Solution Approach 1:
A test application is introduced as an intermediary tool to measure link quality parameters. This test application communicates with a controller that coordinates the testing process, automatically analyzing TCP connections and determining link qualities for multiple cloud applications without requiring complex manual monitoring procedures
3Ease of operation
If automatic link selection is implemented, then ease of operation is improved, but device complexity increases
Solution Approach 1:
Multiple functions (link quality testing, application identification, link selection) are merged into a single integrated system controlled by a controller. The controller coordinates all aspects of automatic link selection, managing multiple links and applications through a unified approach that simplifies operation while containing complexity within the control mechanism
Data Source
AI summary
Multiple types of lines are made simultaneously available, including a Wi-Fi link, a cell link and a wired link. A list of running cloud applications is identified by monitoring A quality of each available link for each running cloud application is periodically tested, including measurements of latency, jitter and packet loss. A first link is selected for a first application and a second link is selected for a second application. Data packets related to the first application are transmitted over a first link and data packets related to the second application over the second link.