METHOD AND APPARATUS FOR ACQUIRING CHANNEL STATE INFORMATION IN ANTENNA ARRAY

摘要

A method and an apparatus for acquiring channel state information in an antenna array are disclosed. A method for transmitting channel state information by a terminal comprises the step of: receiving relation information on a CSI-RS and a physical antenna from a base station by the terminal, the relation information including information on a first CSI-RS and a first physical antenna transmitting the first CSI-RS and information on a second CSI-RS and a second physical antenna transmitting the second CSI-RS; and transmitting first channel state information and second channel state information to the base station on the basis of the relation information by the terminal, wherein the first physical antenna and the second physical antenna may be included in one antenna array, the first channel state information may be information on a channel state between the terminal and the first physical antenna determined on the basis of the first CSI-RS, and the second channel state information may be information on a channel state between the terminal and the second physical antenna determined on the basis of the second CSI-RS.