Correlation detection apparatus and fourier transform apparatus

Details Correlation detection apparatus and fourier transform apparatus Correlation detection apparatus and fourier transform apparatus

2003-06-18

2008-11-11

Patel, Ajit (Department: 2617)

Multiplex communications

Generalized orthogonal or special mathematical techniques

Fourier transform

C370S210000

Reexamination Certificate

active

07450492

ABSTRACT:
A correlation detection apparatus which realizes software CDMA inverse-spread processing. A reception circuit receives an RACH preamble from a mobile station, and an A/D converts the preamble into digital received data. An FFT unit FFT-processes the received data to obtain an FFT result. An RACH code storage unit holds an RACH preamble code, and another FFT unit FFT-processes the RACH preamble code to obtain another FFT result. A multiplication unit multiples the FFT result by the other FFT result. An IFFT unit IFFT-processes a result of multiplication input from the multiplication unit to obtain a delay profile. A data decoding unit decodes the received data by using the delay profile, and obtains decoded data.

REFERENCES:
patent: 6111538 (2000-08-01), Schuchman et al.
patent: 6603822 (2003-08-01), Brede et al.
patent: 2002/0037058 (2002-03-01), Birru
patent: 2002/0094044 (2002-07-01), Kolze et al.
patent: 2005/0031061 (2005-02-01), Ojard et al.
patent: 2005/0207334 (2005-09-01), Hadad
patent: 2007/0121718 (2007-05-01), Wang et al.
patent: A 2000-48008 (2000-02-01), None
patent: A 2000-231552 (2000-08-01), None
patent: A-2001-313589 (2001-11-01), None
patent: A 2002-32357 (2002-01-01), None
patent: A 2002-32359 (2002-01-01), None
patent: A 2002-542529 (2002-12-01), None
patent: WO 02/13476 (2002-02-01), None

Affiliated with

Also associated with

Rating

Correlation detection apparatus and fourier transform apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Correlation detection apparatus and fourier transform apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Correlation detection apparatus and fourier transform apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4036279