High-speed cell searching apparatus and method using...

Details High-speed cell searching apparatus and method using... High-speed cell searching apparatus and method using...

2005-09-27

2005-09-27

Tse, Young T. (Department: 2637)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S141000, C375S147000

Reexamination Certificate

active

06950456

ABSTRACT:
A next-generation mobile communication system is disclosed, including a high-speed cell searching method and apparatus using a distributed sample acquisition scheme (DSA) and a differentially-coherent phase shift keying (DPSK)-based DSA (hereinafter referred to as D2SA) in a direct sequence code division multiple access (DS/CDMA) system. The high-speed cell searching apparatus uses the D2SA technique using the 2b-ary DPSK modulation instead of the quadrature modulation to simultaneously convey b (b≧1) state samples for the SRG that generates the long-period PN sequences in the next-generation DS/CDMA system using the DSA technique, and employs the data constellation pre-rotation technique to provide the certainty of the channel estimation. A high-speed cell searching method using the apparatus is also provided.

REFERENCES:
patent: 5724384 (1998-03-01), Kim et al.
patent: 6151353 (2000-11-01), Harrison et al.
patent: 6188714 (2001-02-01), Yamaguchi
patent: 6389058 (2002-05-01), Lee et al.
patent: 6668009 (2003-12-01), Lee et al.

Affiliated with

Also associated with

Rating

High-speed cell searching apparatus and method using... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High-speed cell searching apparatus and method using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-speed cell searching apparatus and method using... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3410461