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:
Aug. 10, 2010
Filed:
Aug. 01, 2006
Chang-soo Koo, Melville, NY (US);
Peter J. Voltz, Commack, NY (US);
I-tai LU, Dix Hills, NY (US);
Qingyuan Dai, Germantown, MD (US);
Robert L. Olesen, Huntington, NY (US);
Chang-Soo Koo, Melville, NY (US);
Peter J. Voltz, Commack, NY (US);
I-Tai Lu, Dix Hills, NY (US);
Qingyuan Dai, Germantown, MD (US);
Robert L. Olesen, Huntington, NY (US);
InterDigital Technology Corporation, Wilmington, DE (US);
Abstract
In a wireless communication system, a method and apparatus for noise estimation of a received OFDM communication signal, wherein the signal comprises a data frame with a preamble having at least one long training field (LTF) containing two substantially similar OFDM symbols, comprise examining the LTF for substantially similar OFDM symbols. The noise power in the signal is estimated and the received signal power is measured. The signal to noise ratio is calculated and the signal power is determined by subtracting the noise power from the signal noise.