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. 09, 2008
Filed:
Mar. 27, 2007
Shinichi Isobe, Kanagawa, JP;
Ken Igarashi, Kanagawa, JP;
Atsushi Iwasaki, Kanagawa, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
When a radio terminal unitundergoes a handover between base stations, a previous edge routerhaving been connected to the radio terminal unit, out of edge routersprovided in respective base stations, provides an instruction to instruct a relay router, under which the edge routerand every edge routerin the base stationas a candidate for a destination of the movement are connected, to buffer data from a correspondent node, and instructs the relay router to forward the data buffered in the relay routeraccording to the instruction, to the radio terminal unitafter the movement, after completion of the handover, whereby the buffered data is forwarded to the radio terminal unit. This implements forwarding packet data through the optimal path to the radio terminal unit after the movement in the handover control and achieves effective utilization of network resources and reduction of handover transactions.