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:
Jun. 23, 2009
Filed:
Apr. 24, 2006
Serge M. Manning, Overland Park, KS (US);
Charles Brent Hirschman, Overland Park, KS (US);
Mark A. Lipford, Overland Park, KS (US);
Serge M. Manning, Overland Park, KS (US);
Charles Brent Hirschman, Overland Park, KS (US);
Mark A. Lipford, Overland Park, KS (US);
Sprint Spectrum L.P., Overland Park, KS (US);
Abstract
A mobile node that is in communication with a correspondent node via a home agent initiates a process for establishing a route optimized mode of communication between the mobile node and the correspondent node. The mobile node sends a first initiating message to the home agent for delivery to the correspondent node and sends a second initiating message directly to the correspondent node. The mobile node secures the first initiating message by including an initiating-message authentication code that can be validated by the home agent or by an authentication server. The correspondent node responds by sending a first responsive message to the home agent for delivery to the mobile node and by sending a second responsive message directly to the mobile node. The home agent secures the first responsive message by adding a responsive-message authentication code that can be validated by the mobile node.