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:
Nov. 13, 2012
Filed:
May. 02, 2007
Shinji Murai, Hachioji, JP;
Tomoaki Ishifuji, Tokyo, JP;
Takashi Yano, Tokorozawa, JP;
Masaaki Shida, Hachioji, JP;
Shigenori Hayase, Kodaira, JP;
Shinji Murai, Hachioji, JP;
Tomoaki Ishifuji, Tokyo, JP;
Takashi Yano, Tokorozawa, JP;
Masaaki Shida, Hachioji, JP;
Shigenori Hayase, Kodaira, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a wireless communication system for communicating with a plurality of stations at the same point of time with the same frequency using a Space Division Multiple Access (SDMA), wireless resources are allocated by a first decision unit which evaluates performance of each station obtained when the SDMA is used and which determines periods of time to be allocated to groups of stations formed according to the SDMA technique. Using a first evaluation unit and a second evaluation unit to evaluate performance required by each station and each application, the first decision unit allocates the wireless resources to the stations. It is therefore possible that the wireless resources are efficiently allocated to the stations while preventing an event in which the wireless resources are excessive or insufficient for required quality of service.