Radio communication system using wideband code division...

Details Radio communication system using wideband code division... Radio communication system using wideband code division...

2005-11-22

2005-11-22

Ngo, Ricky (Department: 2666)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S342000

Reexamination Certificate

active

06967939

ABSTRACT:
A third generation general partnership program radio communication system or a universal mobile telephone system employs a wide band code division multiple access system. The codes in various incoming signals from different sources are identified by cross correlation using a code matched filter. A multiplexer, samples the signals from each of the P sources at P times the chip rate of the codes in the incoming signals. The mutliplexer time multiplexes the received signals and feeds them to single delay line consisting of N stages each having P elements. Each stage will thus store one sample from each of the P sources. A selected element in each stage has an output which feeds a corresponding input of a code matched filter dot-product adder chain to enable a cross-correlation to be established for each incoming signal in turn.

REFERENCES:
patent: 6269126 (2001-07-01), Toskala et al.
patent: 6463048 (2002-10-01), Garyantes
patent: 6480526 (2002-11-01), Shoki et al.
patent: 6496551 (2002-12-01), Dam et al.
patent: 6507603 (2003-01-01), Haga et al.
patent: 6683906 (2004-01-01), Iwamatsu
patent: 2002/0039884 (2002-04-01), Raynes et al.
patent: 2002/0154705 (2002-10-01), Walton et al.
patent: 0 667 686 (1995-08-01), None
patent: 0 998 052 (2000-03-01), None
European Search Report dated Nov. 24, 2000.

Affiliated with

Also associated with

Rating

Radio communication system using wideband code division... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Radio communication system using wideband code division..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio communication system using wideband code division... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3504263