Circuit and method for tracking finger off-set in a spread-spect

Details Circuit and method for tracking finger off-set in a spread-spect Circuit and method for tracking finger off-set in a spread-spect

1996-12-17

1999-06-22

Vu, Hug D.

Multiplex communications

Communication over free space

Combining or distributing information via code word channels...

375349, H04J 1302

Patent

active

059149493

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.

REFERENCES:
patent: 5361276 (1994-11-01), Subramaniam
patent: 5608722 (1997-03-01), Miller
patent: 5621752 (1997-04-01), Antonio et al.
patent: 5691974 (1997-11-01), Zehavi et al.
patent: 5737326 (1998-04-01), I et al.

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