Patent ID: 7457366

Claim:
A method for generating a phase compensation estimate comprising: recursively filtering an observation vector formed by weighted pilot subcarriers of a data symbol of an orthogonal frequency division multiplexed (OFDM) packet; and applying the phase compensation estimate to channel equalized subcarriers of the data symbol in the frequency domain after performance of a Fourier transform on the data symbol, wherein the pilot subcarriers are weighted based on fading gains, wherein the recursively filtering includes generating a predicted observation vector from a phase compensation estimate, the phase compensation estimate generated for a prior data symbol using a recursive algorithm, and wherein the recursively filtering includes subtracting the predicted observation vector from the observation vector, wherein recursively filtering comprises performing extended Kalman filtering on the observation vector using a channel estimate, an additive noise power estimate, a signal to noise ratio (SNR) estimate, a priori information about a dynamic model of phase, and a phase noise power value from a phase noise spectrum of transceiver oscillators.