Multiplex communications – Communication over free space – Combining or distributing information via code word channels...
Reexamination Certificate
2006-10-31
2006-10-31
Ngo, Ricky Q. (Department: 2616)
Multiplex communications
Communication over free space
Combining or distributing information via code word channels...
C370S350000, C370S210000, C370S320000, C370S208000, C370S335000, C370S441000, C370S479000, C370S464000, C370S503000
Reexamination Certificate
active
07130293
ABSTRACT:
A reception step receives a multicarrier signal containing subcarriers, at least one of which a synchronization signal is transmitted therein, multiplied only by a synchronization signal spreading code, a correlation detection step detects correlation values between the received multicarrier signal and replicas of the synchronization signal, and a timing detection step detects a FFT timing and a long code received timing according to the correlation values.
REFERENCES:
patent: 5757766 (1998-05-01), Sugita
patent: 5832029 (1998-11-01), Mimura
patent: 5886999 (1999-03-01), Kojima et al.
patent: 5933424 (1999-08-01), Muto
patent: 6167037 (2000-12-01), Higuchi et al.
patent: 6246675 (2001-06-01), Beasley et al.
patent: 6370134 (2002-04-01), Aramaki
patent: 6445713 (2002-09-01), Nowara
patent: 6646980 (2003-11-01), Yamamoto et al.
patent: 6647025 (2003-11-01), Sudo
patent: 6907026 (2005-06-01), Akiyama
patent: 2002/0136176 (2002-09-01), Abeta et al.
patent: 2002/0181489 (2002-12-01), Kitagawa et al.
patent: 2004/0085946 (2004-05-01), Morita et al.
patent: 2004/0141481 (2004-07-01), Lee et al.
patent: 2004/0199554 (2004-10-01), Aslanis et al.
patent: 2005/0180311 (2005-08-01), Wang et al.
patent: 0 795 971 (1997-09-01), None
patent: 0 944 178 (1999-09-01), None
patent: 11-340874 (1999-12-01), None
patent: 2000-22588 (2000-01-01), None
K. Higuchi, et al., “Fast Cell Search Algorithm in DS-CDMA Mobile Radio Using Long Spreading Codes”, Vehicular Technology Conference, IEEE, XP-010229096, vol. 3, May 4, 1997, pp. 1430-1434.
Dong-Seog Han, et al. “On the Synchronization of MC-CDMA System for Indoor Wireless Communications”, Vehicular Technology Conference, IEEE, XP-010353144, vol. 2, Sep. 19, 1999, pp. 693-697.
Hanada Yukiko
Higuchi Kenichi
Sawahashi Mamoru
Haile Feben Micael
Ngo Ricky Q.
NTT DoCoMo Inc.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
LandOfFree
Transmitter, transmitting method, receiver, and receiving... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transmitter, transmitting method, receiver, and receiving..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmitter, transmitting method, receiver, and receiving... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3696995