METHOD AND APPARATUS FOR TRANSMISSION AND RECEIVING SIGNAL DESIGNED GUARDBAND IN CELLULAR COMMUNICATION SYSTEMS SUPPORTING BANDWIDTH SCALABILITY

摘要

PURPOSE: A method and an apparatus for transmitting and receiving downlink signal is provided to search cells by receiving synchronized channel from each sub-band. CONSTITUTION: Synchronization is performed by searching cells with respect to at least two sub-bands, and system information with respect to synchronized sub-bands is obtained(1100). The bandwidth of each sub-band and the bandwidth system parameter of a medium protective band are obtained. The bandwidth of the medium protective band is calculated(1103). According to the bandwidth of the medium protective band, receiving FFT output mapping is set. A downlink signal is received by setting the receiving FFT output mapping(1104).