OFDM receiver clock synchronization system

Details OFDM receiver clock synchronization system OFDM receiver clock synchronization system

2005-09-27

2005-09-27

Liu, Shuwang (Department: 2634)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S354000, C375S355000, C375S366000, C370S203000, C370S208000, C455S063300

Reexamination Certificate

active

06950475

ABSTRACT:
A method is disclosed for synchronizing a OFDM signal. The method includes receiving an OFDM signal including a plurality of long and short synchronization symbols, each comprising a plurality of points. The method includes correlating a predetermined number of points in a long symbol of the received OFDM signal against corresponding points in a reference symbol. A correlation peak is obtained between the received long symbol and the reference symbol, wherein the peak occurs at the time when the receiver has clock synchronization.

REFERENCES:
patent: 5852630 (1998-12-01), Langberg et al.
patent: 6111919 (2000-08-01), Yonge, III
patent: 6654339 (2003-11-01), Bohnke et al.
patent: 6754170 (2004-06-01), Ward
patent: 2002/0065047 (2002-05-01), Moose

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