Circuit and method for tracking finger off-set in a spread-spectrum rake receiver and wireless infrastructure employing the same
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United States of America Patent
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Jun 22, 1999
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N/A
app pub date -
Dec 17, 1996
filing date -
Dec 17, 1996
priority date (Note) -
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Abstract
A finger tracking circuit for a rake receiver, a method of tracking a carrier signal and a wireless infrastructure. The finger tracking circuit includes: (1) a timing error subcircuit that determines a timing error in a current power control group ('PCG') of a carrier signal to be tracked and (2) a feedback subcircuit that applies a gain signal that is a function of a data rate of the carrier signal and a signal-to-noise ratio ('SNR') to the timing error subcircuit, a convergence rate of the finger tracking circuit therefore depending on the data rate of the carrier signal.
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