APPARATUS AND METHOD FOR CONTROLLING SUBCARRIER SPACING IN A WIRELESS COMMUNICATION SYSTEM CAPABLE OF REDUCING INTER-CARRIER INTERFERENCE IN AN OFDM COMMUNICATION SYSTEM

摘要

PURPOSE: An apparatus and method for controlling subcarrier spacing in a wireless communication system are provided to control the increase of interference at each band due to the change of subcarrier spacing or RF increase in a system operating a multi-band.;CONSTITUTION: An interference detection part(510) detects interference generated in a plurality of channel bandwidths or a plurality of frequency bands. The interference detection part provides each detected channel bandwidth or interference information showing the frequency band interference to a subcarrier spacing controlling part(530). A system parameter supplying part(520) supplies a system parameter related to the subcarrier spacing to the subcarrier spacing controlling part. The subcarrier spacing controlling part controls the interval of subcarriers. A subcarrier allocation part(540) arranges the subcarrier by periodically inserting a null subcarrier between existing allocated subcarriers.;COPYRIGHT KIPO 2012