The present invention provides a method including two operations of a first operation and a second operation. The first operation may determine between a terminal located in a space including the small base station and a terminal located in a space excluding the small base station based on a value reported by a terminal. The second operation may be performed using information received from a neighboring macro base station in response to the determination failing to be performed in the first operation, thereby ultimately discriminating between an area including the small base station and an area excluding the small base station corresponding to a location of a terminal.