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:
Aug. 19, 2014
Filed:
Nov. 25, 2011
Sang Won Kim, Daejeon-si, KR;
Sun Min Lim, Daejeon-si, KR;
Hoi Yoon Jung, Daejeon-si, KR;
Byung Jang Jeong, Daejeon-si, KR;
Sang Won Kim, Daejeon-si, KR;
Sun Min Lim, Daejeon-si, KR;
Hoi Yoon Jung, Daejeon-si, KR;
Byung Jang Jeong, Daejeon-si, KR;
Electronics and Telecommunications Research Institute, Daejeon-si, KR;
Abstract
The present invention relates to a wireless communication system and, more particularly, to a spectrum sensing method in cognitive radio communication. According to an aspect of the present invention, a method of canceling an introduced transmission signal includes generating a first signal, having an inverse phase, using a data transmission signal transmitted by a data transmission unit, adjusting a path and/or an amplitude of the first signal, and generating a first signal, having an inverse phase, using a data transmission signal transmitted by a data transmission unit, adjusting a path and/or an amplitude of the first signal, and canceling a second signal, introduced through a data receiving unit, and the first signal by the data transmission signal.