Efficient pilot tracking method for OFDM receivers

Pulse or digital communications – Receivers – Particular pulse demodulator or detector

Reexamination Certificate

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Reexamination Certificate

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10076022

ABSTRACT:
A method for maintaining an accurate channel estimate. The method includes providing a reference channel estimate based on at least one long training symbol, and generating a frequency domain representation of a first data symbol including a plurality of pilots. The method then includes tracking phase change in the plurality of pilots of the first data symbol relative to pilots of the at least one long training symbol to produce correction factors, and adjusting the reference channel estimate based upon the correction factors.

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