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:
Jan. 17, 2012
Filed:
Feb. 28, 2008
Tae Soo Kwon, Gyeonggi-do, KR;
IN Sun Lee, Gyeonggi-do, KR;
Hyo Sun Hwang, Seoul, KR;
Youngsoo Kim, Seoul, KR;
Hyun Ho Choi, Gyeonggi-do, KR;
Young Hoon Lee, Daejeon, KR;
Young Chul Sung, Daejeon, KR;
Hee Jung Yu, Daejeon, KR;
Young Seok OH, Seoul, KR;
Tae Soo Kwon, Gyeonggi-do, KR;
In Sun Lee, Gyeonggi-do, KR;
Hyo Sun Hwang, Seoul, KR;
Youngsoo Kim, Seoul, KR;
Hyun Ho Choi, Gyeonggi-do, KR;
Young Hoon Lee, Daejeon, KR;
Young Chul Sung, Daejeon, KR;
Hee Jung Yu, Daejeon, KR;
Young Seok Oh, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Korea Advanced Institute of Science and Technology, Daejeon, KR;
Abstract
A pilot signal power control apparatus to determine a power level of a pilot signal of a primary network to indicate an availability of a wireless resource of thereof to a secondary user of a secondary network according to a cognitive radio technology, the pilot signal power control apparatus and an operation method thereof, the pilot signal power control apparatus including: a prediction unit to predict a noise increase and/or a sensing probability, the noise increase occurring in a primary user of the primary network due to a channel estimation error, and the sensing probability being a probability that a secondary user senses the pilot signal of; a channel capacity calculation unit to calculate a channel capacity of the primary user based on the predicted noise increase and/or sensing probability; and a power level determination unit to determine the power level of the pilot signal using the calculated channel capacity.