Method for estimating time and frequency offset in an OFDM system

A receiver that employs inherent characteristics of frequency domain representation of the data symbols. By computing a differential-in-frequency function across a large number of OFDM tones, robust estimates of time and frequency offset are obtained. The obtained time and frequency estimates provid...

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Bibliographische Detailangaben
Hauptverfasser:	CIMINI, JR. LEONARD JOSEPH, MCNAIR BRUCE EDWIN
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY MULTIPLEX COMMUNICATION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	A receiver that employs inherent characteristics of frequency domain representation of the data symbols. By computing a differential-in-frequency function across a large number of OFDM tones, robust estimates of time and frequency offset are obtained. The obtained time and frequency estimates provide control to sampling and frequency offset elements that are interposed between the reliever input and subsequent receiver stages.