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:
Apr. 20, 2021

Filed:

Nov. 08, 2017
Applicants:

Sharp Kabushiki Kaisha, Osaka, JP;

Fg Innovation Company Limited, New Territories, HK;

Inventors:

Liqing Liu, Sakai, JP;

Shoichi Suzuki, Sakai, JP;

Tomoki Yoshimura, Sakai, JP;

Wataru Ouchi, Sakai, JP;

Kimihiko Imamura, Sakai, JP;

Assignees:

SHARP KABUSHIKI KAISHA, Sakai, JP;

FG INNOVATION COMPANY LIMITED, New Territories, HK;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2018.01); H04W 74/08 (2009.01); H04W 76/27 (2018.01); H04W 72/04 (2009.01); H04W 72/08 (2009.01); H04W 72/14 (2009.01); H04W 16/14 (2009.01); H04W 88/02 (2009.01);
U.S. Cl.
CPC ...
H04W 74/0833 (2013.01); H04W 16/14 (2013.01); H04W 72/04 (2013.01); H04W 72/0446 (2013.01); H04W 72/085 (2013.01); H04W 72/14 (2013.01); H04W 74/08 (2013.01); H04W 76/27 (2018.02); H04W 88/02 (2013.01);
Abstract

Provided is a terminal apparatus that performs an uplink LBT procedure, wherein one or more than one subframes are allocated for transmission of a message 3 in an LAA cell, and an LBT procedure for transmission of a random access preamble is initiated in a case where it is determined that a channel is busy in all of the one or more than one subframes.


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