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.
Patent No.:
Date of Patent:
Oct. 08, 2019
Filed:
Mar. 26, 2017
Applicant:
Electronics and Telecommunications Research Institute, Daejeon, KR;
Inventors:
Jae Sun Cha, Daejeon, KR;
Eunkyung Kim, Daejeon, KR;
Jae Joon Park, Daejeon, KR;
Seung-Kwon Baek, Daejeon, KR;
Pyeong Jung Song, Daejeon, KR;
Chanho Yoon, Daejeon, KR;
Sung Cheol Chang, Daejeon, KR;
Assignee:
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 74/08 (2009.01); H04W 16/14 (2009.01); H04W 88/08 (2009.01);
U.S. Cl.
CPC ...
H04W 74/08 (2013.01); H04W 16/14 (2013.01); H04W 74/0816 (2013.01); H04W 88/08 (2013.01);
Abstract
Disclosed are a base station and a channel access method performing a channel access in a unlicensed band. The channel access method includes: performing channel sensing at least once on a channel of the unlicensed band in a channel sensing period of a frame; and broadcasting a reservation signal for the channel when the channel is empty.