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Registered METHOD FOR USING FLEXIBLE BANDWIDTH IN ODFMA-BASED COGNITIVE RADIO SYSTEM, BASE STATION AND SUBSCRIBER STATION USING THE SAME
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METHOD FOR USING FLEXIBLE BANDWIDTH IN ODFMA-BASED COGNITIVE RADIO SYSTEM, BASE STATION AND SUBSCRIBER STATION USING THE SAME
- Inventors
- Sunghyun Hwang, Song Myung Sun, Kim Chang-Joo, 김윤희, Um Jung Sun, Gwangzeen Ko
- Application No.
- 12092722 (2006.11.07)
- Publication No.
- 20090135713 (2009.05.28)
- Registration No.
- 8477799 (2013.07.02)
- Country
- UNITED STATES
- Project Code
- 06MR1200, Development of cognitive radio technology for efficient spectrum utilization, Song Myung Sun
- 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.
- KSP Keywords
- Broadcast Channel, Cognitive Radio System, Customer Premises Equipment, Flexible Bandwidth, Frequency division, Frequency division multiple access(FDMA), Orthogonal Frequency Division Multiple Access(OFDMA), Subscriber station, base station(BS), cognitive radio(CR), multiple access, radio system
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