Carrier recovery circuit and method

Abstract

A carrier recovery circuit of receiving an OFDM data, comprising a demodulator, a domain transformer, an equalizer, a frequency offset detector, and a compensator. The demodulator demodulates the OFDM data with a carrier signal. The domain transformer is coupled to the demodulator, and transforms the OFDM data to frequency domain. The equalizer is coupled to the domain transformer and frequency equalizes the OFDM data. The frequency offset detector is coupled to the equalizer, retrieves a phase reference data from the OFDM data, and determines a frequency offset based on the phase reference data and a predetermined data in the carrier recovery circuit. The compensator is coupled to the frequency offset detector, and compensates the frequency offset signal based on the estimated frequency offset.

Dependencies are inferred from the claim text.