Access Point Roaming Control via Pre-Authentication and Packet Reconstruction
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Solution Overview
Problem
Existing wireless communication systems experience temporary communication disconnection during roaming due to the need for re-authentication when switching between access points, leading to increased communication disconnection time.
Innovation Solution
The use of access point devices and communication control devices that communicate using at least two different frequency bands, allowing for seamless data packet transmission and reception between access points, including data packet reconstruction and transfer between devices, to minimize disconnection time during roaming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If re-authentication processing is performed when wireless terminal switches connection between access points, then connection stability is improved, but communication disconnection time increases
Solution Approach 1:
The patent performs re-authentication processing in advance before the wireless terminal actually switches access points. The source access point initiates re-authentication with the destination access point while the terminal is still connected, so that authentication is already completed when the switch occurs, eliminating communication disconnection time while maintaining connection stability
2Duration of action of stationary object
If data packet transmission continues during roaming between access points, then communication continuity is improved, but data packet management complexity increases
Solution Approach 1:
The patent introduces a communication control device as an intermediary that manages data packet routing between source and destination access points during roaming. This mediator handles the complexity of data packet management, allowing continuous transmission while simplifying the burden on individual access points and maintaining communication continuity
Data Source
AI summary
An access point device includes circuitry configured to communicate with a wireless terminal by using at least first and second frequency bands that are different from each other, and receive a data packet destined for the access point device that includes a data packet destined for the wireless terminal. The circuitry of the access point device is also configured to reconstruct the data packet destined for the wireless terminal from the data packet for the access point device that is received, and transmit the data packet destined for the wireless terminal that is reconstructed, to the wireless terminal by using one of the first and second frequency bands.