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:
Nov. 12, 2019
Filed:
Jan. 26, 2018
Industry-academic Cooperation Foundation, Yonsei University, Seoul, KR;
Kwang-Soon Kim, Seoul, KR;
Seong-Lyun Kim, Seoul, KR;
Moon Kyu Jo, Seoul, KR;
Xilei Chen, Seoul, KR;
Abstract
A central management server for special communication may include: a spectrum sensing information acquisition unit for acquiring spectrum sensing information from spectrum sensing servers; an OP map generation unit for generating an OP value for each channel if there is an access request from a second layer; and a channel allocation unit configured to allocate a channel based on the OP value to a user terminal of the second layer requesting access if there is an access request from the second layer. The channel allocation unit may allocate a channel corresponding to the highest OP value from among the available channels, if there are available channels unused by both a first layer and a lower-level layer, and may select and allocate a channel unused by the first layer but used by the lower-level layer, if there are no such available channels.