Processing for improved performance and reduced pilot

Details Processing for improved performance and reduced pilot Processing for improved performance and reduced pilot

2005-09-13

2005-09-13

Tran, Khai (Department: 2637)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S152000

Reexamination Certificate

active

06944209

ABSTRACT:
The present invention is a user equipment (UE), including a receiver and method for receiving one of a plurality of channels in a communication signal. An adaptive matched filter produces a filtered signal by using a weighting signal. A rake receiver produces a filter weighting signal using a pseudo-noise signal generator. A channel despreader despreads the filtered signal using the pseudo-noise signal generated to produce a despread channel signal of the selected channel. A pilot channel despreader despreads the filtered signal using a pseudo-noise signal generator to produce a despread pilot signal of the pilot channel. A hard decision processor receives the despread channel signal of the selected channel and produces a correction signal. A phase-locked loop utilizes at least the despread pilot signal and produces a phase correction signal which is applied to produce phase-corrected channel signals.

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Sadayuki et al., A Coherent Detection System with a Suppressed Pilot Channel for DS/CDMA Systems, Electronics and Communications in Japan, Part 1, vol. 79, No. 4, 1996, pp. 95-102.

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