Advanced whitener-rake receiver for WCDMA terminal

Details Advanced whitener-rake receiver for WCDMA terminal Advanced whitener-rake receiver for WCDMA terminal

2005-09-20

2005-09-20

Vu, Huy D. (Department: 2665)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S342000, C370S310000

Reexamination Certificate

active

06947403

ABSTRACT:
A CDMA receiver (10) includes a receiver input for coupling to signal outputs of Nrxreceive antennas (20A,20B), where the signal outputs are sampled at Nssamples per symbol or chip, a matched filter (14), such as a RAKE, and a whitening filter (20) for coupling the receiver input to an input of the matched filter. The whitening filter contains NsNrxparallel whitening filters wj,k(22A-22D), individual ones of the whitening filters wj,kreceiving during each symbol interval i, NsNrxnew signal samples via a signal connection matrix (28) such that a first individual whitening filter receives only one of the new samples, a second individual whitening filter receives the same sample as the first individual whitening filter, and one additional sample, and such that an nth individual whitening filter receives the same n−1 samples as the first n−1 individual whitening filters, plus one of the remaining samples. The whitening filter has Nrxoutputs for outputting filtered signal samples such that a filtered signal sample appearing in the Nrxoutputs does not correlate with any other filtered signal sample appearing in Nrxoutputs. The whitening filter also includes a delay line (30) constructed as a plurality of serially coupled delay line elements each having a delay of one symbol interval. The delay line has an input coupled to an output of said signal connection matrix and provides the NsNrxparallel whitening filters wj,kwith delayed versions of the signal samples.

REFERENCES:
patent: 5937014 (1999-08-01), Pelin et al.
patent: 6470044 (2002-10-01), Kowalski
patent: 6654365 (2003-11-01), Sylvester et al.
patent: WO-01/39448 (2001-05-01), None
patent: WO-02/075950 (2002-09-01), None
J. Vidal, M. Cabrera, A. Agustin, “Space-Time Front-Ends for RAKE Receivers in the FDD Mode of UTRA”, Universitat Politecnica de Catalunya, Barcelona, Spain.
Hafez Hadinejad-Mahram and Gholamrez Alirezaei, “A Linear Receiver for WCDMA Downlink Exploiting the Coloration of the Interference”, Aachen University, Aachen, Germany, 2003 IEEE.

Affiliated with

Also associated with

Rating

Advanced whitener-rake receiver for WCDMA terminal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Advanced whitener-rake receiver for WCDMA terminal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Advanced whitener-rake receiver for WCDMA terminal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3450510