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:
Jan. 11, 2011
Filed:
Jun. 13, 2007
Sridhar Rajagopal, Plano, TX (US);
Brian C. Joseph, McKinney, TX (US);
Syed N. Ahmed, Allen, TX (US);
Yaming Zhang, Plano, TX (US);
Sidney B. Schrum, Jr., Fairview, TX (US);
Sridhar Rajagopal, Plano, TX (US);
Brian C. Joseph, McKinney, TX (US);
Syed N. Ahmed, Allen, TX (US);
Yaming Zhang, Plano, TX (US);
Sidney B. Schrum, Jr., Fairview, TX (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
A system for detection and avoidance of victim services in ultra-wideband (UWB) systems is provided. A detect and avoid module may calculate power averages of Orthogonal Frequency Division Multiplexing tones. The power of tones may be measured and compared with power averages of corresponding tones. If a measured tone power exceeds an average power of a corresponding tone by a dynamic threshold, the tone may be identified as associated with an interferer. The threshold may be inversely related to the gain level of an automatic gain control module. The UWB subsystem may be configured with known bands of victim services of other radio frequency systems, and a tone identified as associated with an interferer that is within a known victim service band may be identified as a victim service. The UWB subsystem may attenuate or otherwise suppress transmission within the victim service band to avoid interfering with the victim service.