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:
Feb. 02, 2010
Filed:
Feb. 10, 2006
Rotem Cooper, San Diego, CA (US);
Glenn Salaman, Lafayette, CO (US);
James A. Hutchison, San Diego, CA (US);
Robbin D. Hughes, San Diego, CA (US);
Vanitha Aravamudhan, San Diego, CA (US);
Rotem Cooper, San Diego, CA (US);
Glenn Salaman, Lafayette, CO (US);
James A. Hutchison, San Diego, CA (US);
Robbin D. Hughes, San Diego, CA (US);
Vanitha Aravamudhan, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
One aspect of the invention provides a system, apparatus and method that allow a wireless communication device to intelligently search for and select a communication cell based on a system identifier (SID) and network identifier (NID) order of preference rather than just pilot signal strength. Generally, a mobile device scans a frequency channel associated with the highest preferred SID/NID for pilot signals at different PN offsets. The cell associated with the strongest pilot signal detected is queried to determine whether it belongs to the SID/NID sought. If the selected PN offset belongs to a cell associated with the SID/NID sought then it is used for communications. Otherwise, the SID/NID identification process is repeated for the next strongest PN offset detected on the same frequency channel. If no pilot signals meeting these criteria are found in the frequency channel, the next highest preferred SID/NID is selected and the process is repeated.