Methods and apparatus to manage power consumption in wireless local area network devices
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United States of America Patent
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Oct 25, 2011
Grant Date -
Apr 15, 2010
app pub date -
Oct 14, 2008
filing date -
Oct 14, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Methods and apparatus to manage power consumption in wireless devices are disclosed. A disclosed example apparatus comprises performing a first received signal strength indicator (RSSI) scan to determine a beacon interval and a first beacon time for a wireless channel, calculating a second beacon time for the wireless channel based on the beacon interval and the first beacon time, and performing a second RSSI scan for the wireless channel during a time interval that includes the calculated second beacon time. In some examples, the wireless channel is a wireless channel that was previously identified as active, is a wireless channel that previously had the highest received power level, and/or is selected from a list of popular or frequently used channels. Additionally or alternatively, when a wireless channel with sufficient signal level is identified, scanning for additional channels is not performed.
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