Apparatus and method for estimating interference and noise...

Pulse or digital communications – Testing – Signal noise

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C375S340000, C375S346000, C375S349000

Reexamination Certificate

active

07623569

ABSTRACT:
A method and apparatus for estimating interference and noise power in an orthogonal frequency division multiplexing/orthogonal frequency division multiple access/discrete multi-tone (OFDM/OFDMA/DMT) system is disclosed. A correlator correlates a plurality of sub-carriers with a preset reference sequence on an element-by-element basis and outputs a result of the correlation. A signal noise producer calculates a difference between a correlation value associated with each of the plurality of sub-carriers output from the correlator and a correlation value produced from at least one adjacent sub-carrier and outputs a result of the calculation. An interference and noise power producer produce interference and noise power from the difference between the correlation values calculated by the signal noise producer.

REFERENCES:
patent: 6317456 (2001-11-01), Sayeed
patent: 6456653 (2002-09-01), Sayeed
patent: 2003/0016622 (2003-01-01), McCarty, Jr.
patent: 2003/0223354 (2003-12-01), Olszewski
patent: 1 207 663 (2001-11-01), None
patent: 1 303 064 (2003-04-01), None
patent: 11-252040 (1999-09-01), None
patent: 2001-103032 (2001-04-01), None
patent: 2002-124931 (2002-04-01), None
patent: 2002-158631 (2002-05-01), None
patent: 2002-232388 (2002-08-01), None
patent: 2003-069523 (2003-03-01), None
patent: 2003-229919 (2003-08-01), None
patent: 2003-324407 (2003-11-01), None
patent: 2004-072724 (2004-03-01), None
patent: 10-2000-0066459 (2000-11-01), None
patent: 2 235 435 (2000-06-01), None
patent: 2 192 094 (2001-02-01), None
patent: 809592 (1981-02-01), None
Muneta et al., “A New Frequency-Domain Link Adaptation Scheme for Broadband OFDM Systems”, 1999 IEEE, pp. 253-257.

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

Apparatus and method for estimating interference and noise... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for estimating interference and noise..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for estimating interference and noise... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4124618

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