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:
May. 12, 2009
Filed:
Dec. 08, 2003
Akihito Hanaki, Yokohama, JP;
Minami Ishii, Yokohama, JP;
Sung Uk Moon, Yokosuka, JP;
Takehiro Nakamura, Yokosuka, JP;
Masafumi Usuda, Yokosuka, JP;
Mayu Yamada, Yokosuka, JP;
Akihito Hanaki, Yokohama, JP;
Minami Ishii, Yokohama, JP;
Sung Uk Moon, Yokosuka, JP;
Takehiro Nakamura, Yokosuka, JP;
Masafumi Usuda, Yokosuka, JP;
Mayu Yamada, Yokosuka, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
The object of the present invention is to provide a communication system which makes it possible to avoid a control load from being generated while effectively utilizing the reception capabilities of mobile stations. The communication system includes a category managerconfigured to categorize reception capability values showing reception capabilities necessary for receiving multicast data in the mobile stations, a reception capability collectorconfigured to collect the reception capability values of the mobile stations, a deciderconfigured to decide a hierarchical structure of the multicast data from a plurality of categories corresponding to the collected reception capability values of the mobile stations and a transmitterconfigured to transmit the multicast data using the decided hierarchical structure.