Multi-Band WLAN Link Configuration via Beacon Channel Information
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Solution Overview
Problem
Configuring wireless links between WLAN devices supporting multiple frequency bands is time-consuming, especially when the channel used for receiving a beacon message differs from the channel accessed by the mobile station.
Innovation Solution
A method and apparatus for configuring wireless links that involve receiving a beacon message from a wireless access station, obtaining access information, and determining an appropriate communication channel for access, which may include transmitting a probe request and receiving a probe response to rapidly establish a connection, even when the access channel differs from the beacon-receiving channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a mobile station receives a beacon message on one channel and then attempts to access the wireless access station on a different channel, then the mobile station can establish a wireless link across frequency bands, but the link configuration time increases
Solution Approach 1:
The patent applies preliminary action by having the wireless access station include information about other available communication channels in the beacon message transmitted on the first channel. This allows the mobile station to obtain channel information in advance before attempting to switch channels, thereby reducing the time required for link configuration across frequency bands without requiring multiple sequential beacon receptions
Solution Approach 2:
The patent uses the beacon message as an intermediary carrier that transports not only standard beacon information but also additional channel availability information. This intermediary mechanism enables the mobile station to learn about alternative channels efficiently, facilitating faster multi-band link establishment by mediating the information transfer between access station and mobile station
Data Source
AI summary
A method and a device for setting a multi-band based link in a wireless LAN system are disclosed. The method for configuring a wireless link comprises the steps of: receiving, from a wireless access device supporting the plurality of communication channels, a beacon message through a first communication channel among a plurality of communication channels; obtaining, from the beacon message, wireless access information which is used for accessing a first communication channel; and obtaining, from the beacon message, at least one available communication channel list except for the first communication channel among the plurality of communication channels. Thus, the time for configuring a link between wireless LAN apparatuses can be reduced.