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. 20, 2007
Filed:
Jun. 14, 2001
Gregory K. Lewis, Poway, CA (US);
Frederick J. Dickson, San Diego, CA (US);
Abhishek Sharma, Mt. Prospect, IL (US);
Yingchun Xu, Buffalo Grove, IL (US);
Gregory K. Lewis, Poway, CA (US);
Frederick J. Dickson, San Diego, CA (US);
Abhishek Sharma, Mt. Prospect, IL (US);
Yingchun Xu, Buffalo Grove, IL (US);
UTStarcom, Inc., Alameda, CA (US);
Abstract
A system and methods are shown for providing Internet Protocol communication services to a mobile client. One method includes sending a registration request from a radio node to a control node responsive to detecting a mobile client in a service area of the radio node. When the control node receives the request from the radio node, the control node determines a foreign agent to provide communication services to the mobile client. In one embodiment, the control node determines the foreign agent based on a mobile client information record, a radio node record, and a plurality of foreign agent records associated with the radio node. In one embodiment, the control node may select a last serving foreign agent associated with the mobile client. Alternatively, if the control node selects a different foreign agent than the last serving foreign agent, the control node sends a registration update message to the last serving foreign agent so that the last serving foreign agent may terminate any communication sessions associated with the mobile client.