Method of equalization in an OFDM system

Multiplex communications – Generalized orthogonal or special mathematical techniques – Particular set of orthogonal functions

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C375S260000, C375S349000, C375S229000, C370S210000

Reexamination Certificate

active

10778087

ABSTRACT:
An equalization method suitable for use in a receiver in an orthogonal frequency division multiplexing (OFDM) system utilizing a plurality of sub-carriers. The receiver includes an outer receiver for decoding. The equalization method includes receiving an input signal including at least one preamble symbol containing a training sequence and a plurality of informative OFDM symbols each containing a serial stream of samples, and performing compensations for each of the informative OFDM symbols. Compensation for each of the informative OFDM symbols includes converting the serial stream of samples into parallel samples, performing a fast Fourier transform (FFT) of the parallel samples to obtain a plurality of data symbols, each data symbol corresponding to a sub-carrier, compensating the data symbols for at least one first phase distortion and at least one second phase distortion, and providing at least one amplitude distortion factor to the outer receiver.

REFERENCES:
patent: 5285474 (1994-02-01), Chow et al.
patent: 5483529 (1996-01-01), Baggen et al.
patent: 5559830 (1996-09-01), Dapper et al.
patent: 5796814 (1998-08-01), Brajal et al.
patent: 5963592 (1999-10-01), Kim
patent: 5987063 (1999-11-01), Rinne
patent: 6061327 (2000-05-01), Demoulin et al.
patent: 6088398 (2000-07-01), Wahlqvist et al.
patent: 6141393 (2000-10-01), Thomas et al.
patent: 6181714 (2001-01-01), Isaksson et al.
patent: 6292511 (2001-09-01), Goldston et al.
patent: 6295317 (2001-09-01), Hartup et al.
patent: 6295326 (2001-09-01), Tonissen et al.
patent: 6320903 (2001-11-01), Isaksson et al.
patent: 6408038 (2002-06-01), Takeuchi
patent: 6643339 (2003-11-01), Okanoue et al.
patent: 2002/0012392 (2002-01-01), Goldston et al.
patent: 2002/0021750 (2002-02-01), Belotserkovsky et al.
patent: 2002/0037058 (2002-03-01), Birru
patent: 2002/0057734 (2002-05-01), Sandberg et al.
patent: 2002/0131537 (2002-09-01), Storm et al.
patent: 2002/0145971 (2002-10-01), Cho et al.
patent: 2003/0053564 (2003-03-01), Kim et al.
patent: 2004/0233838 (2004-11-01), Sudo et al.
patent: 421928 (2001-02-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method of equalization in an OFDM system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of equalization in an OFDM system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of equalization in an OFDM system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3934980

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.