Robust fine frequency and time estimation in mobile...

Details Robust fine frequency and time estimation in mobile... Robust fine frequency and time estimation in mobile...

2011-05-17

2011-05-17

Corrielus, Jean B (Department: 2611)

Pulse or digital communications

Receivers

Angle modulation

C375S344000, C375S355000

Reexamination Certificate

active

07944999

ABSTRACT:
A technique for estimating a carrier frequency offset and a timing offset in a MediaFLO™ (Forward Link Only) system, wherein the method comprises receiving Orthogonal Frequency Division Multiplexing (OFDM) symbols; interpolating pilots on odd or even symbols of the received OFDM symbols; determining a phase difference between two successive symbols using the interpolated pilots; obtaining an estimate of the carrier frequency offset and the timing offset from the determined phase difference between two successive symbols; and correcting a sampling frequency in accordance with the estimated carrier frequency offset and timing offset.

REFERENCES:
patent: 7627049 (2009-12-01), Kim
patent: 7693039 (2010-04-01), Roh et al.
patent: 7706823 (2010-04-01), Buda et al.
patent: 7733971 (2010-06-01), Roh et al.
patent: 2006/0176802 (2006-08-01), Ko et al.
patent: 2009/0046816 (2009-02-01), Hong et al.

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