Patent ID: 8630251

Claim:
A data communication method of a base station (BS) according to a dual mode of a first system mode and a second system mode in a wireless communication system which uses multiple carriers, the method comprising: transmitting a mode indicator through a first resource zone of a frame, the mode indicator indicating that the wireless communication system supports the dual mode, transmitting, by the BS to at least one mobile station only supporting the first system mode and at least one mobile station supporting both the first system mode and the second system mode, information through the first resource zone of the frame and a second resource zone of the frame, the first and second resource zones being contiguous, wherein the first resource zone is used to transmit, by the BS, data only for the first system mode and control information for the first system mode and the second system mode, wherein the second resource zone is used to transmit, by the BS, data only for the second system mode, the data only for the second system mode being other than control information for the second system mode, wherein the control information for the first system mode and the second system mode includes a preamble, a frame control header and at least one of uplink resource map information and downlink channel resource map information for the at least one mobile station only supporting the first system mode and the at least one mobile station supporting both the first system mode and the second system mode.