Double layer maximum ratio combining for an OFDM receiver...

Details Double layer maximum ratio combining for an OFDM receiver... Double layer maximum ratio combining for an OFDM receiver...

2011-03-22

2011-03-22

Corrielus, Jean B (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Antinoise or distortion

C375S267000, C375S346000, C375S347000

Reexamination Certificate

active

07912142

ABSTRACT:
An apparatus, method, and system for reducing a C/N in an OFDM receiver using diversity combining techniques in the presence of ICI, wherein the apparatus comprises an encoded data estimator adapted to estimate data received in the OFDM receiver; a pair of ICI estimators operatively connected to the encoded data estimator and adapted to calculate an inter-carrier-interference term of the data; and a pair of diversity combining equalizers adapted to compensate multi-path interference of the data, wherein a first one of the diversity combining equalizers is operatively connected to the encoded data estimator, and a second one of the diversity combining equalizers is operatively connected to the pair of ICI estimators. The diversity combining equalizer may comprise a MRC diversity combining equalizer. Preferably, the encoded data estimator, the pair of ICI estimators, and the pair of diversity combining equalizers are implemented on a DVB-T/H diversity SoC.

REFERENCES:
patent: 6922549 (2005-07-01), Lyons et al.
patent: 7362832 (2008-04-01), Yoshida
patent: 7515893 (2009-04-01), Lyons et al.

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