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

摘要

The present invention relates to a wireless communication system. A method for a terminal to transmit channel state information (CSI) comprises the steps of: determining a precoding matrix by selecting a first precoding matrix and a second precoding matrix; and transmitting the CSI including an index of the said first precoding matrix and an index of the said second precoding matrix. The said first precoding matrix relates to a method for transmitting CSI in which a revision factor according to a relationship between the said terminal and a transmission point is applied.

主权项

1. A method for transmitting channel state information (CSI) at a user equipment (UE) served by two or more transmission points (TPs) in a wireless communication system, the method comprising:
determining a precoding matrix by selecting a first precoding matrix having a revision factor for revising a difference between channel states of the two or more TPs and a second precoding matrix; and transmitting the CSI including an index of the first precoding matrix and an index of the second precoding matrix.