Patent ID: 7952987

Claim:
A signal reception apparatus in a communication system, the apparatus comprising: a reception unit configured to receive an incoming signal and divide the incoming signal into a first communication service signal corresponding to a first communication scheme and a second communication service signal corresponding to a second communication scheme; a first cyclic prefix (CP) remover configured to generate a first signal by removing a first CP corresponding to the first communication scheme from the first communication service signal; a second CP remover for configured to generate a second signal by removing a CP corresponding to the second communication scheme from the second communication service signal; and a fast Fourier transform (FFT) unit configured to perform FFT on the first signal and the second signal, wherein a first frequency band corresponding to the first communication service signal is different from a second frequency band corresponding to the second communication service signal, and a length of the first CP is different from a length of the second CP, and wherein the FFT unit has a size corresponding to a number of the first frequency band and the second frequency band.