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. 30, 2009
Filed:
Jan. 21, 2005
Keiichi Nakatugawa, Kawasaki, JP;
Ryuichi Takechi, Kawasaki, JP;
Hideaki Takusagawa, Kawasaki, JP;
Hideaki Ono, Hagi, JP;
Keiichi Nakatugawa, Kawasaki, JP;
Ryuichi Takechi, Kawasaki, JP;
Hideaki Takusagawa, Kawasaki, JP;
Hideaki Ono, Hagi, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A handover method in a mobile communication system utilizing the Mobile IP, which method solves the problem of the loss of communication packets (packet loss) and deterioration of the quality of service occurring when switching communication media, including switching connection from a first network NWto which a terminal is currently connected to a second network NWat which time transferring once to a third network NW(first step), establishing connection with the second network NWduring the transfer (second step), then breaking the connection with the third network NWand transferring to the second network NW(third step).