The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 02, 2010
Filed:
Oct. 17, 2000
John Eric Kleider, Scottsdale, AZ (US);
Bruce Alan Fette, Mesa, AZ (US);
Jeffrey Scott Chuprun, Scottsdale, AZ (US);
Carl Steven Gifford, Gilbert, AZ (US);
Chad S. Bergstrom, Chandler, AZ (US);
John Eric Kleider, Scottsdale, AZ (US);
Bruce Alan Fette, Mesa, AZ (US);
Jeffrey Scott Chuprun, Scottsdale, AZ (US);
Carl Steven Gifford, Gilbert, AZ (US);
Chad S. Bergstrom, Chandler, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A method () of orthogonal frequency-division multiplex (OFDM) communication via a plurality of subchannels () within a noncontiguous wideband channel () is provided. The method () determines an SNR for each of the subchannels (). The method () then designates a subchannel () as clear () when its SNR is greater than a least-SNR threshold (), as impeded () when its SNR is less than the least-SNR threshold and greater than an SNR-evaluation threshold, and as obstructed () when its SNR is less than both the least-SNR and the SNR-evaluation thresholds. The method () then transmits OFDM data () so that each of the clear subchannels receives the OFDM data () at a maximum subchannel signal level (), each of the impeded subchannels receives the OFDM data () at an intermediate subchannel signal level (), and each of the obstructed subchannels receives the OFDM data () at zero subchannel signal level ().