Method and device for transmitting channel state information in wireless communication system

摘要

The present invention relates to a wireless communication system. A method for transmitting channel state information (CSI) by a user equipment (UE) in a wireless communication system, according to one embodiment of the present invention, can comprise the steps of: receiving a CSI reference signal (CSI-RS); determining an overhead of a common reference signal (CRS) resource element on the basis of the number of antenna ports which is the same number of antenna ports associated with the CSI-RS; and transmitting the CSI calculated on the basis of the CSI-RS and the overhead of the CRS resource element.