Radio coexistence mechanism for variable data rate radio links
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United States of America Patent
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-
May 22, 2012
Grant Date -
Aug 21, 2008
app pub date -
Feb 15, 2008
filing date -
Feb 19, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A device has a radio transmitter for a first radio link such as a Bluetooth link, having a coexistence controller arranged to communicate with a co-located other radio transmitter for another radio link, to enable both radio links to use potentially conflicting transmission frequencies. A link monitor monitors the first radio link, according to an output from the coexistence controller. By making the link monitor dependent on the coexistence controller, it can distinguish between transmission losses caused by the coexistence interface, and those caused by other effects, to reduce the risk of a data rate controller unnecessarily reducing a transmission rate if transmission losses caused by the coexistence control are misinterpreted as a drop in link quality.
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