Method for performing beam search or beam transmission in wireless communication system

A first user equipment for performing beam searching or beam transmission in a wireless communication system, the first UE comprising:

• a transmitter;
• a receiver;
• and
• a processor,
• wherein the processor configured to:
• control the receiver to receive location information from a second UE, and
• perform either or both of the beam searching and beam transmission for an area determined based on the received location information through the transmitter,
• wherein at least one of a beam direction, a preferential beam searching direction, and a beam width for the beam searching or beam transmission is determined according to at least one of a location, a speed, a moving direction, a service, and a packet latency requirement of the first UE,
• wherein a frequency band in which the location information is received s lower than a frequency band in which the either or both of the beam searching and beam transmission is performed, and
• wherein as the speed of the first UE increases, the beam width for the beam searching decreases.