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:
Sep. 30, 2014
Filed:
Jul. 26, 2011
Tao-yuan Hsiao, San Jose, CA (US);
Tak Ming Francis Pang, Palo Alto, CA (US);
Tao-Yuan Hsiao, San Jose, CA (US);
Tak Ming Francis Pang, Palo Alto, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Techniques are provided for a foreign controller to receive a handoff message including information for a multicast group that is used to forward network control information originating from an Internet Protocol version 6 (IPv6) network router by a home wireless controller to one or more foreign wireless controllers for mobile client devices that were first associated with the home controller. The foreign controller joins a multicast group based on the information contained in the handoff message and establishes a communication path with a mobile client device. The foreign controller extracts network control information addressed to the mobile client device received from the home wireless controller via a multicast stream associated with the multicast group, and forwards the network control information to the mobile client device via the communication path.