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:
Jul. 20, 2010
Filed:
Feb. 20, 2007
Takayuki Nyu, Tokyo, JP;
Takayuki Nyu, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
In one of multiple mobile communication networks, a serving node responsible for locating mobile terminals is responsive to a registration request from a mobile terminal for storing the serving node identity in a home location database to which the mobile terminal is subscribed. In response to a location request message from a client terminal requesting the location of a target mobile terminal, a serving node identity is retrieved from the home location database of the target mobile terminal. The serving node identity represents the current location of the target mobile terminal. If the current location area is within the coverage area of location-based service provided by the client terminal, the location request message is forwarded to a serving node identified by the retrieved serving node identity. Otherwise, an error message is transmitted to the client terminal to indicate that the target mobile terminal is roaming outside of the coverage area.