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:
Aug. 26, 2008
Filed:
Jan. 15, 2004
Manhee JO, Yokohama, JP;
Shinichi Isobe, Yokosuka, JP;
Katsutoshi Nishida, Yokohama, JP;
Takatoshi Okagawa, Yokosuka, JP;
Manhee Jo, Yokohama, JP;
Shinichi Isobe, Yokosuka, JP;
Katsutoshi Nishida, Yokohama, JP;
Takatoshi Okagawa, Yokosuka, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
Determining a cross over router on the occasion of a migration of a mobile terminal connected to a network during communication in the network. A path control device receives path control information from each router in the network and stores the information as a path control table. Then, a pre-migration path between the mobile terminal and the correspondent terminal is recognized and, on the occasion of a migration of a mobile terminal, the path control device predicts a post-migration path between the mobile terminal and the correspondent terminal. The path control device then compares the pre-migration path and the post-migration path to derive as a common part, and a router closest to the mobile terminal in the common part is determined as a cross over router.