Bi-casting based mobility control method, and apparatus therefor

An operation method for a handover of a terminal, performed by a base station of a serving cell, the operation method comprising:

• transmitting, to the terminal, a first message including parameters for measurement and reporting;
• receiving, from the terminal, a second message including a measurement result based on the parameters for measurement and reporting;
• determining whether the serving cell and a target cell simultaneously provide services to the terminal based on the measurement result, or requesting a handover of the terminal to a base station of the target ell and receiving, from the base station of target cell, a result of determination on whether the serving cell and the target cell simultaneously provide the services to the terminal;
• in response to determination that the serving cell and the target cell simultaneously provide the services to the terminal, transmitting, to the terminal, a third message instructing the terminal to receive the services simultaneously from the serving cell and the target cell;
• and
• receiving, from the terminal, a fourth message reporting completion of configuration for receiving the services simultaneously from the serving cell and the target cell.

An operation method for a handover of a terminal, performed by a base station of a target cell, the operation method comprising:

• receiving, from a base station of a serving cell, a first message requesting a handover of the terminal and determining whether the serving cell and the target cell simultaneously provide services to the terminal, or receiving, from the base station of the serving cell, information indicating that the serving cell and the target cell are to simultaneously provide the services to the terminal;
• transmitting, to the base station of the serving cell, a second message including a result of the determination;
• performing a radio access request procedure with the terminal;
• and
• receiving, from the terminal, a third message reporting completion of configuration for receiving the services simultaneously from the serving cell and the target cell.