METHODS FOR COGNITIVE RADIO BASED COMMUNICATION AND FOR BROADCASTING POLICY INFORMATION FOR THE SAME AND APPARATUS AND TERMINAL THEREFORE

摘要

Disclosed are methods of broadcasting frequency policy information in a cognitive radio based communication system, apparatus therefore and a communication methods for selecting frequency policy and terminal using the same. In particular, a policy broadcaster is provided as a subject performing a broadcast of frequency policy information in cognitive radio communication. One of the methods of broadcasting frequency policy information using the same and one of the methods of performing cognitive radio communication by obtaining frequency policy information using the same are provided. Moreover, an enhanced superframe structure, which is capable of providing a seamless service in case that a narrowband terminal is introduced in the middle of a superframe, is also provided.