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:
Jul. 02, 2013
Filed:
Nov. 07, 2006
Sung Hyun Hwang, Daejeon, KR;
Myung Sun Song, Daejeon, KR;
Yun Hee Kim, Yongin, KR;
Chang Joo Kim, Daejeon, KR;
Gwangzeen Ko, Seoul, KR;
Jung Sun Um, Suwon, KR;
Sung Hyun Hwang, Daejeon, KR;
Myung Sun Song, Daejeon, KR;
Yun Hee Kim, Yongin, KR;
Chang Joo Kim, Daejeon, KR;
Gwangzeen Ko, Seoul, KR;
Jung Sun Um, Suwon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Industry Academic Cooperation Foundation of Kyunghee University, Gyeonggi-do, KR;
Abstract
Provided are a method for using a flexible bandwidth in an orthogonal frequency division multiple access (OFDMA)-based cognitive radio system, and a base station (BS) and a subscriber station using the method. The method includes: allocating a channel band from among unused channel bands having a bandwidth that is a natural number times a bandwidth resolution to customer premises equipment (CPE), wherein the bandwidth resolution is a predetermined bandwidth smaller than a bandwidth of a broadcast channel band, and transmitting an OFDMA-based signal comprising band allocation information indicating information regarding the allocated channel band.