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. 29, 2015
Filed:
Nov. 06, 2009
Shinkichi Ikeda, Kanagawa, JP;
Jun Hirano, Kanagawa, JP;
Takashi Aramaki, Osaka, JP;
PANASONIC INTELLECTUAL PROPERTY COPORATION OF AMERICA, Torrance, CA (US);
Abstract
Disclosed is a technique to provide a handover method that can improve the communication efficiency by reducing tunnel overhead between a mobile node and a home agent. When the mobile node (UE) () performs handover (HO) from a first access router () to a second access router () and if the IP versions supported by the networks before and after the HO are different, the UE transmits a first message including an allocation request for a home address of the HO target to the home agent (HA) and a second message including an address allocation request. The HA transmits to the UE, a third message including the home address of the HO target based on the allocation request and transmits to the UE, a fourth message including the home address based on the address allocation request.