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.

Date of Patent:
Dec. 18, 2012

Filed:

Sep. 16, 2010
Applicants:

Kazuyuki Ozaki, Kawasaki, JP;

Yuuta Nakaya, Kawasaki, JP;

Makoto Yoshida, Kawasaki, JP;

Inventors:

Kazuyuki Ozaki, Kawasaki, JP;

Yuuta Nakaya, Kawasaki, JP;

Makoto Yoshida, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08G 1/00 (2006.01); G08B 1/08 (2006.01); H04B 17/00 (2006.01); B60Q 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A communication system includes a roadside unit and a mobile communication unit that communicates with the roadside unit by using one of a plurality of communication channels. The mobile communication unit obtains, for each communication channel, a reception condition measurement representing the reception condition of a radio signal received from the roadside unit, creates information of a candidate channel for a receiving channel to be used to receive the radio signal from the roadside unit, and reports the candidate channel information to the roadside unit. On the other hand, the roadside unit assigns the receiving channel by selecting it from among the candidate channels, and reports the receiving channel to the mobile communication unit.


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