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:
Oct. 22, 2013
Filed:
Oct. 25, 2007
Da-shan Shiu, San Jose, CA (US);
LI Zhang, San Diego, CA (US);
Eugene SY, San Jose, CA (US);
David Malonado, Chula Vista, CA (US);
Upkar Dhaliwal, San Diego, CA (US);
Da-shan Shiu, San Jose, CA (US);
Li Zhang, San Diego, CA (US);
Eugene Sy, San Jose, CA (US);
David Malonado, Chula Vista, CA (US);
Upkar Dhaliwal, San Diego, CA (US);
QUALCOMM, Incorporated, San Diego, CA (US);
Abstract
Techniques for improved low latency frequency switching are disclosed. In one embodiment, a controller receives a frequency switch command and generates a frequency switch signal at a time determined in accordance with a system timer. In another embodiment, gain calibration is initiated subsequent to the frequency switch signal delayed by the expected frequency synthesizer settling time. In yet another embodiment, DC cancellation control and gain control are iterated to perform gain calibration, with signaling to control the iterations without need for processor intervention. Various other embodiments are also presented. Aspects of the embodiments disclosed may yield the benefit of reducing latency during frequency switching, allowing for increased measurements at alternate frequencies, reduced time spent on alternate frequencies, and the capacity and throughput improvements that follow from minimization of disruption of an active communication session and improved neighbor selection.