Interference cancellation in a spread spectrum communication system
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United States of America Patent
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-
May 31, 2011
Grant Date -
Oct 15, 2009
app pub date -
Jun 8, 2009
filing date -
Sep 10, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A code division multiple access communication system transmits a pilot and traffic signal over a shared spectrum. The pilot and traffic signal have an associated code and are received over the shared spectrum. The received signals are sampled and the samples are delayed to produce a window. A weighted value for each despread pilot code window sample is determined using an adaptive algorithm. Each window sample is despread with a traffic code. Each despread traffic code window sample is weighted according to a weight corresponding to its respective pilot code sample.
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