Abstract: A method in which a User Equipment (UE) measures a downlink signal in a wireless communication system is disclosed. The method includes receiving information about a Beam Direction Pattern (BDP) of the downlink signal and measuring the downlink signal based on the information about the BDP. The information about the BDP includes an index of a subframe in which the downlink signal is to be transmitted using a specific BDP and includes an identifier (ID) of the specific BDP. The BDP of the downlink signal is switched according to the subframe index based on the information about the BDP.

Abstract: Disclosed is a method for generating an ultrasonic image, the method including: transmitting an ultrasonic signal to a predetermined portion of an object and receiving at least three response signals which are reflected from the predetermined portion; selecting at least two response signals from among the at least three received response signals; and acquiring vector information which indicates a speed and a movement direction of the predetermined portion based on a receiving angle and a Doppler frequency of each of the selected at least two response signals.

Abstract: A method and apparatus for performing analog beamforming is provided. According to the method and apparatus, the analog beamforming is effectively performed by using as small a number of devices as possible and by processing a relatively small amount of data.