Wireless Device Session Management for Access Point Reconnection
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Solution Overview
Problem
Devices disconnecting from wireless access points often experience delays in reconnecting due to active sessions being retained by the access points, leading to association comeback timers that reject connection requests.
Innovation Solution
A computing device predicts whether a target access point has an active session with it upon disconnection, sends a clearing request to clear the session if necessary, and then reconnects to the access point.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the access point retains the active session after device disconnection, then the session state is preserved for potential quick reconnection, but the device experiences delayed reconnection due to association comeback timer rejection
Solution Approach 1:
The device performs a prediction check before reconnection to determine whether the access point retains an active session. Based on this prediction, the device proactively sends a session clearing request to remove the retained session, thereby preventing the association comeback timer from triggering and eliminating reconnection delays.
2Productivity
If the device sends connection requests during the association comeback timer period, then the device attempts to reconnect promptly, but the access point rejects these requests due to the active session
Solution Approach 1:
Before attempting reconnection, the device predicts whether an active session exists at the access point and clears it in advance. This preliminary action ensures that subsequent connection requests are not rejected by the association comeback timer, thereby maintaining both fast reconnection attempts and high connection success rates.
Data Source
AI summary
An example computing device includes: a wireless communications interface configured to connect to a network deployed by one or more access points; a controller for the wireless communications interface, the controller configured to: predict whether a target access point for connecting to the network has an active session with the computing device when the computing device is disconnected from the target access point; when the uncleared session is predicted, send a clearing request to the target access point to clear the active session; and connect to the target access point.