Circuit and method for tracking finger off-set in a spread-spectrum rake receiver and wireless infrastructure employing the same
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.
Lucent Technologies Inc.
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H04B H04B H04B
additional inventional additional
Guang Y.
Li