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. 09, 2010
Filed:
Sep. 13, 2006
Applicants:
Cory S. Modlin, Chevy Chase, MD (US);
Tarik Muharemovic, Dallas, TX (US);
Inventors:
Cory S. Modlin, Chevy Chase, MD (US);
Tarik Muharemovic, Dallas, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 7/216 (2006.01); H04W 4/00 (2009.01); H04B 7/208 (2006.01); H04J 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for Orthogonal Frequency Division Multiplexing Access (OFDMA) ranging is provided. The method includes receiving a signal having OFDMA symbols. An FFT is performed on this signal. Matching ranging codes are found. The power for a given hypothesized ranging code is determined and compared to a power threshold to determine if the code was transmitted. The timing offset and power are reported as the result of ranging.