Method of transmitting information for supporting legacy system

A method of transmitting information for supporting legacy system is provided to perform efficient data communication by various frame structures. A frame structure where the base station BS supports the legacy system can be produced(S601). The base station can inform the terminal of the frame texture information about the frame structure produced in advance by the system information forwarded message(S602). The frame structure information can be delivered to the base station to the terminal by transmitting the system flash with information message(S603).