Terminal and control method thereof in wireless communication system

A method performed by a base station in a wireless communication system, the method comprising:

• receiving, to a terminal, a radio resource control (RRC) connection request message;
• transmitting, from the terminal, an RRC connection setup message;
• and
• receiving, to the terminal, an RRC connection setup complete message,
• wherein a default beam book is configured by the terminal, and
• wherein a beam book is changed in case that a preconfigured event occurred.

A terminal in a wireless communication system, the terminal comprising:

• a transceiver configured to transmit and receive a signal;
• and
• a controller configured to control the transceiver,
• the controller is configured to:
• configure a default beam book,
• transmit, to a base station, a radio resource control (RRC) connection request message,
• receive, from the base station, an RRC connection setup message,
• transmit, to the base station, an RRC connection setup complete message,
• identify whether a preconfigured event occurred, and
• change a beam book, in case that the preconfigured event occurred.

A base station in a wireless communication system, the base station comprising:

• a transceiver configured to transmit and receive a signal;
• and
• a controller configured to control the transceiver,
• the controller is configured to:
• receive, to a terminal, a radio resource control (RRC) connection request message,
• transmit, from the terminal, an RRC connection setup message, and
• receive, to the terminal, an RRC connection setup complete message,
• wherein a default beam book is configured by the terminal, and
• wherein a beam book is changed in case that a preconfigured event occurred.