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:
Nov. 18, 2008
Filed:
Jun. 20, 2003
Cedric Westphal, San Francisco, CA (US);
Hermant Chaskar, Woburn, MA (US);
Cedric Westphal, San Francisco, CA (US);
Hermant Chaskar, Woburn, MA (US);
Spyder Navigations L.L.C., Wilmington, DE (US);
Abstract
A quality of service (QoS) signaling packet for arranging QoS connections upon handoff between a mobile node (MN) and a correspondent node (CN) using Internet Protocol (IP), the signaling packet includes one or more QoS flow requirements, one or more classifier parameters, QoS session identification information composed of a previous QoS session ID, a new QoS session ID, and a sequence number. The QoS session IDs are used for establishing a new data path and for added security against spoofing, can be composed of a key-based signature combination of a mobile node's new care of address (CoA) and the sequence number. The packet may also include a previous node address and a cookie, both of which are inserted by a previous node. The previous router address is used for backtracking communications and establishing/updating flow tables while the cookie is used for authentification of node-to-node messages.