Method and apparatus for estimating timing error and...

Details Method and apparatus for estimating timing error and... Method and apparatus for estimating timing error and...

2011-06-14

2011-06-14

Ton, Dang T (Department: 2475)

Multiplex communications

Communication over free space

Combining or distributing information via frequency channels

C370S208000, C370S319000, C370S430000

Reexamination Certificate

active

07961697

ABSTRACT:
The present invention relates to a method for estimating a timing error and a frequency offset in a high-speed portable Internet system and a method thereof. A predetermined preamble symbol is added to an OFDM frame to be transmitted by a transmitter according to an exemplary embodiment of the present invention, an IFFT operation is performed, and then a pseudo noise is multiplexed by the preamble symbol to estimate the timing error and the frequency offset. A receiver receives an OFDM symbol, extracts the preamble symbol from the OFDM symbol, and multiplexes the extracted preamble symbol by a local pseudo noise, which is equal to the pseudo noise used by the transmitter but is shifted.

REFERENCES:
patent: 4715029 (1987-12-01), Crookshanks
patent: 5689502 (1997-11-01), Scott
patent: 6633614 (2003-10-01), Barton et al.
patent: 6633616 (2003-10-01), Crawford
patent: 6650616 (2003-11-01), Crawford
patent: 6658063 (2003-12-01), Mizoguchi et al.
patent: 7042858 (2006-05-01), Ma et al.
patent: 7286514 (2007-10-01), Bar-Ness et al.
patent: 2003/0026197 (2003-02-01), Crawford
patent: 2003/0053413 (2003-03-01), Sawahashi et al.
patent: 2004/0076225 (2004-04-01), You et al.
patent: 2004/0240376 (2004-12-01), Wang et al.
patent: WO 03/081938 (2003-10-01), None

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