METHOD AND APPARATUS FOR ASSIGNING FREQUENCY FOR FREQUENCY SHARING SYSTEM IN INCUMBENT SYSTEM EXISTING ENVIRONMENT

摘要

PURPOSE: A frequency allocating method for a frequency sharing system is provided to recognize available channel information in a frequency sharing system or a frequency allocation device by classifying each sub frequency resource. CONSTITUTION: If available sub frequency resources do not exist, an apparatus determines the existence of conditional available sub frequency resources(520, 530). If the conditional available sub frequency resource exists, the apparatus decides whether the regulation is satisfied(540). If so, the apparatus allocates conditional available sub frequency resources to a frequency sharing system(541). The apparatus determines the existence of the allocated sub frequency resource using RAT(Radio Access Technology)(550).