Dynamic frequency selection scheme for IEEE 802.11 WLANs
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United States of America Patent
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Apr 17, 2007
Grant Date -
Dec 12, 2002
app pub date -
Oct 12, 2001
filing date -
May 11, 2001
priority date (Note) -
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Abstract
Disclosed is a method and system for dynamically selecting a communication channel between an access point (AP) and a plurality of stations (STAs) in an IEEE 802.11 wireless local area network (WLAN). The method includes the steps of: determining whether a new channel to be used by the plurality of STAs is needed; measuring the channel quality of a plurality of frequency channels by at least one of the plurality of STAs; reporting the quality of the plurality of frequency channels in terms of a received signal strength indication (RSSI), Clear Channel Assessment (CCA) busy periods and periodicity; and, selecting one of the candidate channels based on the channel quality report for use in communication between the AP and the plurality of STAs.
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