Invention Grant
US08477799B2 Method for using flexible bandwidth in OFDMA-based cognitive radio system, base station and subscriber station using the same
有权
在基于OFDMA的认知无线电系统中使用灵活带宽的方法，使用该认知无线电系统的基站和用户站
- Patent Title: Method for using flexible bandwidth in OFDMA-based cognitive radio system, base station and subscriber station using the same
- Patent Title (中): 在基于OFDMA的认知无线电系统中使用灵活带宽的方法，使用该认知无线电系统的基站和用户站
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Application No.: US12092722Application Date: 2006-11-07
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Publication No.: US08477799B2Publication Date: 2013-07-02
- Inventor: Sung Hyun Hwang , Myung Sun Song , Yun Hee Kim , Chang Joo Kim , Gwangzeen Ko , Jung Sun Um
- Applicant: Sung Hyun Hwang , Myung Sun Song , Yun Hee Kim , Chang Joo Kim , Gwangzeen Ko , Jung Sun Um
- Applicant Address: KR Daejeon KR Gyeonggi-do
- Assignee: Electronics and Telecommunications Research Institute,Industry Academic Cooperation Foundation of Kyunghee University
- Current Assignee: Electronics and Telecommunications Research Institute,Industry Academic Cooperation Foundation of Kyunghee University
- Current Assignee Address: KR Daejeon KR Gyeonggi-do
- Agency: Ladas & Parry LLP
- Priority: KR10-2006-0109433 20061107
- International Application: PCT/KR2006/004651 WO 20061107
- International Announcement: WO2007/052995 WO 20070510
- Main IPC: H04J3/16
- IPC: H04J3/16 ; H04J9/00 ; H04W4/00 ; H04W72/00
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.
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