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:
Oct. 08, 2019

Filed:

Aug. 02, 2016
Applicant:

Sharp Kabushiki Kaisha, Sakai, Osaka, JP;

Inventors:

Naoki Kusashima, Sakai, JP;

Kazuyuki Shimezawa, Sakai, JP;

Wataru Ouchi, Sakai, JP;

Alvaro Ruiz Delgado, Sakai, JP;

Assignee:

SHARP KABUSHIKI KAISHA, Sakai, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 74/08 (2009.01); H04W 72/04 (2009.01); H04J 1/00 (2006.01); H04J 11/00 (2006.01); H04W 16/14 (2009.01); H04W 72/08 (2009.01); H04W 72/12 (2009.01);
U.S. Cl.
CPC ...
H04W 74/0808 (2013.01); H04J 1/00 (2013.01); H04J 11/00 (2013.01); H04W 16/14 (2013.01); H04W 72/08 (2013.01); H04W 72/12 (2013.01);
Abstract

To efficiently control a cell by using a non-allocated frequency band or a shared frequency band. A terminal device includes a transmission unit configured to transmit a PUSCH and a CCA check unit configured to perform LBT before a subframe for which a transmission of the PUSCH is indicated. The terminal device determines start time of the LBT, based on start time of the transmission of the PUSCH, a CCA slot length, and the number of CCA checks. The terminal device includes a reception unit configured to receive a PDCCH. The number of CCA checks is indicated on the PDCCH.


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