METHOD FOR REPORTING CHANNEL STATE INFORMATION FOR THREE-DIMENSIONAL BEAMFORMING IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR

摘要

Disclosed are a method for reporting channel state information for three-dimensional beamforming in a wireless communication system, and a device therefor. The method by which a terminal transmits channel state information (CSI) in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: receiving a reference signal from a base station which supports a two-dimensional antenna array; determining the CSI by using the reference signal; and transmitting the determined CSI to the base station. The CSI includes a channel quality indicator (CQI), and the CQI can be determined by using a codeword-to-layer mapping rule. The codeword-to-layer mapping rule for one-dimension and the codeword-to-layer mapping rule for two-dimension are different from each other.

主权项

1. A method for transmitting channel state information (CSI) by a user equipment (UE) in a wireless communication system, the method comprising:
receiving a reference signal from a base station supporting a 2-dimensional (2D) antenna array; determining the CSI using the reference signal; and transmitting the determined CSI to the base station, wherein the CSI comprises a channel quality indicator (CQI), wherein the CQI is determined using a codeword-to-layer mapping rule, and wherein a codeword-to-layer mapping rule for a first dimension is different from a codeword-to-layer mapping rule for a second dimension.