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 9203575 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 01, 2015

Filed:

Oct. 27, 2011
Applicants:

Yunjian Jia, Chongqing, CN;

Kenzaburo Fujishima, Yokohama, JP;

Inventors:

Yunjian Jia, Chongqing, CN;

Kenzaburo Fujishima, Yokohama, JP;

Assignee:

HITACHI, LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 5/00 (2006.01); H04W 28/06 (2009.01); H04W 72/04 (2009.01); H04W 88/08 (2009.01);
U.S. Cl.
CPC ...
H04L 5/0035 (2013.01); H04L 5/006 (2013.01); H04L 5/0069 (2013.01); H04L 5/0094 (2013.01); H04W 28/06 (2013.01); H04L 5/0023 (2013.01); H04W 72/042 (2013.01); H04W 72/0413 (2013.01); H04W 72/0453 (2013.01); H04W 88/08 (2013.01);
Abstract

A base station performs an association between frequency range and combinations of a plurality of base stations including an local base station to notify a terminal of the association. According to the notified association, the terminal, for each frequency, calculates quality of communication with one base station or quality of communication with the combination of the plurality of base stations. The base station and the control station determine the base station/the plurality of base stations that communicate with the terminal, the wireless resource and the transmission scheme, based on the result. Further, the base station selects whether to notify an entirety of or a part of the association to the terminal using positional information of the terminal. Since the association information that is unnecessary for the terminal is not communicated, it is possible to further lighten the load of control.


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