Invention Grant
- Patent Title: Wireless LAN with channel swapping between DFS access points
- Patent Title (中): 无线局域网与DFS接入点之间的信道交换
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Application No.: US12274458Application Date: 2008-11-20
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Publication No.: US08150955B2Publication Date: 2012-04-03
- Inventor: Patrick Busch , Richa Malhotra
- Applicant: Patrick Busch , Richa Malhotra
- Applicant Address: US PA Allentown
- Assignee: Agere Systems Inc.
- Current Assignee: Agere Systems Inc.
- Current Assignee Address: US PA Allentown
- Agency: Mendelsohn, Drucker & Associates, P.C.
- Agent Steve Mendelsohn
- Priority: EP01304146 20010508
- Main IPC: G06F15/173
- IPC: G06F15/173 ; H04W4/00 ; H04W72/00 ; H04J3/16

Abstract:
The present invention enhances the dynamic frequency selection 9DFS) algorithms used in Wireless LANs by adding a channel swapping mechanism. The aim of the traditional DFS algorithm is to dynamically select channels in a wireless LAN in such a way that the best performance is achieved. However, not always the optimal channel selection is achieved. This invention describes an addition to the DFS algorithm in such a way that two APs can decide to swap channels instead of one AP switching to another channel. To avoid the problem of sub-optimal channel selection, a requesting AP sends Swap Requests to other APs in order to sense the willingness of other APs to swap channels with the requesting AP.
Public/Granted literature
- US20090092101A1 WIRELESS LAN WITH CHANNEL SWAPPING BETWEEN DFS ACCESS POINTS Public/Granted day:2009-04-09
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