Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2007-06-13
2010-11-02
Payne, David C (Department: 2611)
Pulse or digital communications
Receivers
Interference or noise reduction
C375S260000, C370S210000
Reexamination Certificate
active
07826572
ABSTRACT:
A method of adjusting overlap-and-add length for zero-padded suffixes. The method includes, based on a channel impulse response, estimating an effective channel length. When the effective channel length is less than a default overlap-and-add length and greater than a minimum length, the method includes setting the overlap-and-add length to the effective channel length. When the effective channel length is less than the minimum length, the method includes setting the overlap-and-add length to the minimum length. When the effective channel length is greater than the default overlap-and-add length, the method includes setting the overlap-and-add length to the default overlap-and-add length.
REFERENCES:
patent: 2003/0088406 (2003-05-01), Chen et al.
patent: 2005/0058145 (2005-03-01), Florencio et al.
patent: 2005/0157801 (2005-07-01), Gore et al.
patent: 2005/0208897 (2005-09-01), Lyons et al.
patent: 2006/0109897 (2006-05-01), Guo et al.
patent: 2006/0159187 (2006-07-01), Wang et al.
patent: 2006/0159189 (2006-07-01), Balakrishnan et al.
patent: 2007/0094031 (2007-04-01), Chen
patent: 2007/0171993 (2007-07-01), Lai et al.
patent: 2007/0280366 (2007-12-01), Aytur et al.
patent: 2008/0165909 (2008-07-01), Amanullah
patent: 2009/0028220 (2009-01-01), Roh et al.
Lowe, D. et al, Adaptive Overlap-Add Equilization for MB-OFDM Ultra-Wideband; Int'l Symposium on Communication & Information Technologies, Oct. 18-20, 2006; Bangkok, Thailand.
B. Muquet et al. “OFDM with trailing zeroes versus OFDM with cyclic prefix : Links, Comparisons and Application to the HIPERLAN/2 System”, IEEE International Conference on Communications, Jun. 18-22, 2000, pp. 1045-1053. See figures 3 and 4.
K. Shi et al. “On the design of robust multiband OFDM Ultra-Wideband receivers”, Texes Wireless Symposium 2005, pp. 81-85. See the abstract and figure 1.
Abbott William L.
Azenkot Yehuda
Brady W. James
File Erin M
Payne David C
Shaw Steven A.
Telecky , Jr. Frederick J.
LandOfFree
Dynamic optimization of overlap-and-add length does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dynamic optimization of overlap-and-add length, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamic optimization of overlap-and-add length will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4224755