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:
Mar. 05, 2019

Filed:

Jun. 08, 2017
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventor:

Hongyang Chen, Kawasaki, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 28/18 (2009.01); H04W 74/08 (2009.01); H04W 16/14 (2009.01); H04W 4/70 (2018.01); H04W 72/04 (2009.01); H04W 72/14 (2009.01); H04W 92/18 (2009.01); H04B 17/336 (2015.01); H04W 88/08 (2009.01);
U.S. Cl.
CPC ...
H04W 74/0808 (2013.01); H04W 4/70 (2018.02); H04W 16/14 (2013.01); H04W 72/0453 (2013.01); H04W 72/14 (2013.01); H04B 17/336 (2015.01); H04W 88/08 (2013.01); H04W 92/18 (2013.01);
Abstract

A base station includes a storage device to store results of carrier sensing performed respectively on a data transmission side and on a data reception side with respect to a plurality of sub-bands in unlicensed frequencies being the frequencies of which a use is not licensed for data transmission, and a controller to extract sub-bands of the unlicensed frequencies being determined that are in an idle status or have high possibility to be in the idle status by both of the data transmission side and the data reception side in the carrier sensing results as candidates for sub-bands of the unlicensed frequencies to be used for transmitting data by the data transmission side.


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