Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Reexamination Certificate
2006-08-29
2006-08-29
Rao, Seema S. (Department: 2616)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
C370S208000, C375S137000
Reexamination Certificate
active
07099353
ABSTRACT:
A wireless transmitter (TX1). The transmitter comprises circuitry for providing a plurality of control bits (CONTROL) and circuitry for providing a plurality of user bits (USER). The transmitter further comprises circuitry (16) for modulating the plurality of control bits and the plurality of user bits into a stream of complex symbols and circuitry (18) for converting the stream of complex symbols into a parallel plurality of complex symbol streams. The transmitter further comprises circuitry (20) for performing an inverse fast Fourier transform on the parallel plurality of complex symbol streams to form a parallel plurality of OFDM symbols and circuitry (22) for converting the parallel plurality of OFDM symbols into a serial stream of OFDM symbols. The serial stream consists of an integer N+1 OFDM symbols. Each OFDM symbol in the serial stream of OFDM symbols comprises a plurality of data points. Finally, selected OFDM symbols (SF1.x′) in the serial stream of OFDM symbols each comprise control data points carrying a portion of a synchronization code.
REFERENCES:
patent: 6192026 (2001-02-01), Pollack et al.
patent: 6738443 (2004-05-01), Bohnke et al.
patent: 6937558 (2005-08-01), Wakutsu
patent: 2002/0122499 (2002-09-01), Kannan et al.
patent: 2003/0095506 (2003-05-01), Jalali et al.
patent: 2005/0169166 (2005-08-01), Okada et al.
Brady W. James
Rao Seema S.
Shaw Steven A.
Shew John
Telecky , Jr. Frederick J.
LandOfFree
Orthogonal frequency division multiplexing system with... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Orthogonal frequency division multiplexing system with..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Orthogonal frequency division multiplexing system with... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3693203