The present invention proposes an RACH subframe structure of a self-contained frame structure for transmitting an uplink synchronization signal (RACH sequence) without influence on a downlink/uplink control zone. For clarity, a TDD new frame structure is explained as an example among the self-contained frame structures. As mentioned in the foregoing description, the present invention can be applied not only to the TDD new frame structure but also to a FDD new frame structure and a self-contained frame structure.