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:
Dec. 06, 2005
Filed:
May. 15, 2001
Yukiko Takeda, Tokorozawa, JP;
Hidenori Inouchi, Higashimurayama, JP;
Takumi Oishi, Yokohama, JP;
Haruo Shibata, Yokohama, JP;
Yukiko Takeda, Tokorozawa, JP;
Hidenori Inouchi, Higashimurayama, JP;
Takumi Oishi, Yokohama, JP;
Haruo Shibata, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An IPv6 mobile packet communication network in which mobile VPN service can be provided without having to use a mobile tunnel. A control signal for enabling packet data transmission and reception is sent from a mobile terminal to a gateway node. Using destination-of-connection information contained in the control signal, the gateway node checks whether mobile VPN service is requested or not. Upon detection of a mobile VPN service request, the gateway node returns IP address information of the gateway node to the mobile terminal via a subscriber node. The mobile terminal then assembles an IPv6 header () and an IPv6 routing header () so that packet data will be unexceptionally transferred through the gateway node.