Peter G Becker

7570689, Aug 4, 2009

Sep 29, 2005

11/238318

Bin Li - Ronkonkoma NY, US
Robert A. DiFazio - Greenlawn NY, US
Jung-Lin Pan - Selden NY, US
Alexander Reznik - Titusville NJ, US
Peter Edward Becker - Coatesville PA, US

InterDigital Technology Corporation - Wilmington DE

H04L 25/49
H04L 27/04
H03H 7/30

375229, 375297, 37524002

A receiver or an integrated circuit (IC) incorporated therein includes a fast Fourier transform (FFT)-based (or hybrid FFT-based) sliding window block level equalizer (BLE) for generating equalized samples. The BLE includes a noise power estimator, first and second channel estimators, an FFT-based chip level equalizer (CLEQ) and a channel monitor unit. The noise power estimator generates a noise power estimate based on two diverse sample data streams. The channel estimators generate respective channel estimates based on the sample data streams. The channel monitor unit generates a first channel monitor signal including truncated channel estimate vectors based on the channel estimates, and a second channel monitor signal which indicates an approximate rate of change of the truncated channel estimate vectors. The FFT-based CLEQ generates the equalized samples based on the noise power estimate, one-block samples of the first and second sample data streams, the channel estimates and the monitor signals.

20090190645, Jul 30, 2009

Apr 7, 2009

12/419333

Bin Li - Shenzhen, CN
Robert A. DiFazio - Greenlawn NY, US
Jung-Lin Pan - Smithtown NY, US
Alexander Reznik - Titusville NJ, US
Peter Edward Becker - Coatesville PA, US

INTERDIGITAL TECHNOLOGY CORPORATION - Wilmington DE

H04L 25/49
H03H 7/30

375229

A receiver or an integrated circuit (IC) incorporated therein includes a fast Fourier transform (FFT)-based (or hybrid FFT-based) sliding window block level equalizer (BLE) for generating equalized samples. The BLE includes a noise power estimator, first and second channel estimators, an FFT-based chip level equalizer (CLEQ) and a channel monitor unit. The noise power estimator generates a noise power estimate based on two diverse sample data streams. The channel estimators generate respective channel estimates based on the sample data streams. The channel monitor unit generates a first channel monitor signal including truncated channel estimate vectors based on the channel estimates, and a second channel monitor signal which indicates an approximate rate of change of the truncated channel estimate vectors. The FFT-based CLEQ generates the equalized samples based on the noise power estimate, one-block samples of the first and second sample data streams, the channel estimates and the monitor signals.