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:
Jun. 29, 2010
Filed:
Nov. 08, 2006
Seong Taek Chung, Redwood City, CA (US);
Krishna Kiran Mukkavilli, San Diego, CA (US);
Vinay Murthy, San Diego, CA (US);
Tao Tian, San Diego, CA (US);
Seong Taek Chung, Redwood City, CA (US);
Krishna Kiran Mukkavilli, San Diego, CA (US);
Vinay Murthy, San Diego, CA (US);
Tao Tian, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Methods and apparatus for frequency tracking of a received signal. In an aspect, a method is provided wherein the received signal comprises one or more symbols having a periodic structure. The method comprises receiving a plurality of samples of a selected symbol that comprises pilot signals scrambled with data and determining a window size and a periodicity factor. The method also comprises accumulating a correlation between samples in a first window and samples in a second window to produce an accumulated correlation value, wherein the first and second windows have a size and a separation based on the window size and the periodicity factor, respectively, and deriving a frequency error estimate based on the accumulated correlation value.