METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA BY USING PLURALITY OF CARRIERS IN MOBILE COMMUNICATION SYSTEMS

摘要

The method for transmitting and receiving data at a base station in a wireless communication system according to one embodiment of the present invention includes the steps of: receiving a performance report from a terminal; determining whether the addition of a serving cell is necessary; when the addition of the serving cell is necessary, transmitting a request for receiving a cell identifying signal to one or more other base stations on the basis of the received performance report; and transmitting a request for transmitting the cell identifying signal to the terminal. According to the embodiment, in a network in which a small cell and a macro cell are overlapped and operated, the terminal can minimize battery consumption and quickly recognize the small cell.