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:
Aug. 02, 2016

Filed:

Mar. 15, 2016
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventors:

Yoshiaki Ohta, Kawasaki, JP;

Yoshihiro Kawasaki, Kamakura, JP;

Kazuhisa Obuchi, Kawasaki, JP;

Yoshiharu Tajima, Kawasaki, JP;

Yoshinori Tanaka, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/155 (2006.01); H04W 74/08 (2009.01); H04W 88/04 (2009.01); H04W 74/00 (2009.01); H04W 72/04 (2009.01);
U.S. Cl.
CPC ...
H04B 7/15507 (2013.01); H04W 74/0833 (2013.01); H04W 72/0446 (2013.01); H04W 74/002 (2013.01); H04W 88/04 (2013.01);
Abstract

A base station which is able to perform radio communications with a relay station and a mobile station, the base station includes a transmitter configured to transmit radio signals to the relay station in downlink backhaul subframes, and to limit transmission of radio signals to the relay station in subframes other than the downlink backhaul subframes; and a controller configured to allow, when performing a random access procedure to the relay station, the transmitter to transmit a message of the random access procedure even in the subframes other than the downlink backhaul subframes.


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