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. 01, 2019
Filed:
May. 31, 2017
Applicant:
Electronics and Telecommunications Research Institute, Daejeon, KR;
Inventors:
Assignee:
Electronics and Telecommunications Research Institute, Daejeon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08C 17/00 (2006.01); G05D 1/00 (2006.01); H04N 21/2347 (2011.01); H04W 74/00 (2009.01); H04W 72/04 (2009.01); G08C 17/02 (2006.01);
U.S. Cl.
CPC ...
G05D 1/0022 (2013.01); G08C 17/00 (2013.01); G08C 17/02 (2013.01); H04N 21/23476 (2013.01); H04W 72/0453 (2013.01); H04W 74/00 (2013.01); B64C 2201/02 (2013.01); G08C 2201/50 (2013.01);
Abstract
A channel access method in an unmanned aerial vehicle (UAV) control and non-payload communication (CNPC) system is provided. The channel access method may include setting an uplink frequency and a downlink frequency to each of a ground station and an airborne radio station, and performing, by the ground station and the airborne radio station, an initial access using the uplink frequency or the downlink frequency.