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.:

US 7684801 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 23, 2010

Filed:

Sep. 20, 2007
Applicants:

Toshihiro Suzuki, Kawasaki, JP;

Hiroshi Kawakami, Yokosuka, JP;

Akihito Okura, Yokohama, JP;

Masami Yabusaki, Kashiwa, JP;

Inventors:

Toshihiro Suzuki, Kawasaki, JP;

Hiroshi Kawakami, Yokosuka, JP;

Akihito Okura, Yokohama, JP;

Masami Yabusaki, Kashiwa, JP;

Assignee:

NTT DoCoMo, Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 36/00 (2009.01); H04W 4/00 (2009.01);
U.S. Cl.
CPC ...
Abstract

An object of the present invention is to avoid packet loss and implement a seamless handover by minimizing the handover latency when a handover is implemented by a multihomed moving network (MN) or a mobile host (MH). The present invention is a mobile communication system that is constituted comprising an MN, a plurality of AI each constituting an interface for the connection to a core network at the MN, and a control device (MMF), wherein the MMF dynamically changes the AI adopted as the connection interface when a predetermined condition is satisfied on the basis of the connection status to the core network at each AI or the prediction information for a subsequent handover. In so doing, the control device continues the transmission and receipt of data with respect to an appropriate AI capable of maintaining a predetermined communication quality, and maintains the connection to the core network of another AI while causing this AI to enter a closed state in which the transmission and receipt of data is disabled.


Find Patent Forward Citations

Suzuki, Toshihiro. (2010). Control device, handover control method and mobile communication system (U.S. Patent No. 7684801). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7684801

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