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. 06, 2012
Filed:
Aug. 24, 2007
Gaurav Lamba, Los Altos, CA (US);
Kirk Allan Burroughs, Alamo, CA (US);
Barbara L. Haskins, Mountain View, CA (US);
James D. Deloach, Jr., Los Altos, CA (US);
Zoltan Biacs, San Mateo, CA (US);
Gaurav Lamba, Los Altos, CA (US);
Kirk Allan Burroughs, Alamo, CA (US);
Barbara L. Haskins, Mountain View, CA (US);
James D. DeLoach, Jr., Los Altos, CA (US);
Zoltan Biacs, San Mateo, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Techniques to support positioning of roaming mobile stations are described. A roaming mobile station communicates with a visited network and has a data connection to a home network. The mobile station sends a request for positioning assistance to a home position determining entity (H-PDE) in the home network. The H-PDE determines that base station almanac (BSA) data applicable for the mobile station is not locally available and sends a request for location information for the mobile station to a designated network entity. This entity may be a BSA server storing BSA data for different networks or a visited PDE (V-PDE) in the visited network. The H-PDE receives location information (e.g., BSA data, assistance data, and/or a position estimate for the mobile station) from the designated network entity and provides positioning assistance to the mobile station based on the received location information.