Patent ID: 8189516

Claim:
A method for receiving a packet data control channel in an Orthogonal Frequency Division Multiple Access (OFDMA) wireless communication system, the method comprising: receiving a signal including a first packet data, a first packet data control information for the first packet data, a second packet data, and a second packet data control information for the second packet data in a single frame from a transmitter, and removing a cyclic prefix (CP) from the received signal, wherein the first packet data control information and the first packet data are received in the diversity mode and the second packet data control information and the second packet data are received in the Adaptive Modulation and Coding (AMC) mode; performing a Fast Fourier Transform (FFT) process on the CP-removed signal; demodulating the first packet data control information and the second packet data control information for the FFT-processed signal; and decoding the demodulated first and second packet data control information, generating a single packet data control information from the first and second packet data control information, and outputting the single packet data control information.