Method and system for OFDM symbol timing synchronization

Details Method and system for OFDM symbol timing synchronization Method and system for OFDM symbol timing synchronization

2007-08-07

2007-08-07

Tran, Khanh (Department: 2611)

Pulse or digital communications

Synchronizers

Synchronizing the sampling time of digital data

Reexamination Certificate

active

10604614

ABSTRACT:
A method includes converting a received time domain digital signal to a corresponding frequency domain digital signal, calculating phase angles of tones of at least one symbol of the frequency domain digital signal when a symbol timing offset exists, and calculating at least one differential phase offset (DPO). A DPO is the difference between two consecutive gaps, a gap being the difference between the phase angle of a tone of the symbol of the frequency domain digital signal when the timing offset of the symbol exists and a correct phase angle of the tone of the symbol of the frequency domain digital signal. The method estimates the symbol timing offset with at least one DPO.

REFERENCES:
patent: 6456654 (2002-09-01), Ginesi et al.
patent: 6628735 (2003-09-01), Belotserkovsky et al.
patent: 6628738 (2003-09-01), Peeters et al.
patent: 6744821 (2004-06-01), Van Acker et al.
patent: 7133474 (2006-11-01), Ramasubramanian et al.

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