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. 24, 2009
Filed:
Jun. 16, 2006
Ben-ren Chen, Northboro, MA (US);
Jingyi Zhou, South River, NJ (US);
Ben-Ren Chen, Northboro, MA (US);
Jingyi Zhou, South River, NJ (US);
Cellco Partnership, Basking Ridge, NJ (US);
Abstract
Mobile station position determination through a wireless communication network, such as a preliminary fix for use in satellite acquisition assistance, utilizes wireless network almanac data defined in a 'virtual' manner, for example, with regard to 'virtual base stations.' A virtual base station (VBS) is a logical construct, essentially modeled from a number of actual base stations in a generally known region that use some common identification (e.g. the same SID/NID combination). The VBS has a coverage/service area approximating the aggregate coverage area of the actual base stations. The service provider offering acquisition assistance or a location based service need not know the precise locations of the actual base stations. Instead, the service provider can compile a virtual base station almanac (VBSA) based on the identification information and virtual base station location information, for example, to support the service(s) when the provider's customers roam onto another carrier's network facilities.