Method and apparatus for controlling operation state of base station in wireless communication system

A method for activating a cell by a terminal in a wireless communication system, the method comprising the steps of:

• receiving, from a serving cell, control information for use in receiving a discovery signal of the cell;
• receiving, from the cell, the discovery signal including cell state information based on the control information, the cell state information indicating an operation state of the cell is an active state or a dormant state;
• generating neighbor cell measurement information based on the discovery signal;
• and
• transmitting the neighbor cell measurement information to the serving cell,
• wherein the operation state of the cell is transitioned from the dormant state to the active state, if a cell activation signal, which is generated by the serving cell based on the neighbor cell measurement information, is transmitted to the cell.

A method for activating a cell by a serving cell in a wireless communication system, the method comprising the steps of:

• receiving, from a terminal served by the serving cell, neighbor cell measurement information generated based on a discovery signal, the discovery signal being transmitted from the cell to the terminal and including cell state information that indicates that an operation state of the cell is an active state or a dormant state;
• checking the operation state of the cell based on the neighbor cell measurement information;
• determining whether to activate the cell, when the cell is in the dormant state;
• and
• transmitting an activation message from the serving cell to the cell, if it is determined to activate the cell.

A terminal for activating a cell in a wireless communication system, the terminal comprising:

• a transceiver configured to transmit and receive signals;
• and
• a controller configured to control reception of control information for use in receiving a discovery signal of the cell from a serving cell, reception of the discovery signal, based on the control information including cell state information that indicates that an operation state of the cell is an active state or a dormant state, generation of neighbor cell measurement information based on the discovery signal, and transmission of the neighbor cell measurement information to the serving cell,
• wherein the operation state of the cell is transitioned from the dormant state to the active state, if a cell activation signal, which is generated by the serving cell based on the neighbor cell measurement information, is transmitted to the cell.