Bit confidence weighting based on levels of interference
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United States of America Patent
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Issued Date -
Apr 23, 2009
app pub date -
Nov 6, 2007
filing date -
Oct 18, 2007
priority date (Note) -
Abandoned
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Abstract
Methods and systems of frequency hopping communication are disclosed. One method includes a receiver obtaining a frequency hopping sequence, wherein the frequency hopping sequence defines a time sequence of reception through each of a plurality of frequency hopping bands. For each of the plurality of frequency hopping bands, the receiver estimates an interference level and assigns a band weight to the frequency hopping band based on the estimated interference level. The receiver receives a signal that includes symbols occupying the plurality of frequency hopping bands according to the frequency hopping sequence, and demodulates the symbols producing a stream of estimated bit values and corresponding bit value confidence levels. The bit value confidence levels of each of the estimated bit values are adjusted according to the band weight of a corresponding frequency hopping band.
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