The terminal reports the generated or updated UE vector to the base station. For example, the terminal reports the UE vector to the base station according to a UE vector report method (S380).

If a UE vector generation subject is not a terminal, the terminal provides beam-related measurement information to the base station according to a measurement request of the base station (S390). The base station generates a UE vector according to beam-related measurement information that the terminal provides, and updates the UE vector as needed.

In such an exemplary embodiment of the present invention, UE vector generation is basically performed in the terminal. The terminal generates a UE vector based on measured beam reception intensity, measures intensity of a periodically received peripheral beam, and measures a receiving change amount of the peripheral beam. The terminal sets a beam having strongest energy, i.e., intensity, to a serving beam based on the information, and sets a beam moving direction based on a receiving change amount of a peripheral beam. The base station allocates a beam resource to the terminal based on such information (a beam moving direction of the terminal, a serving beam, and a receiving change amount) and performs handover. Further, in an initial terminal ability negotiation process, the base station may generate a UE vector according to determination of the base station.

The UE vector update rule is transferred to the terminal through broadcasting information of the base station, and may include updates such as a cyclic update and an event-based update, a report method, and an update cycle.