METHOD AND APPARATUS FOR TRANSMITTING DOWNLINK REFERENCE SIGNAL

摘要

The present invention relates to a wireless communication system, and provides a method and an apparatus for transmitting a downlink reference signal in the wireless communication system. According to one embodiment of the present invention, a method for a base station to transmit a downlink signal by using two or more layers, comprises the steps of: multiplexing and transmitting a reference signal for the two or more layers on the basis of a reference signal pattern on a data region of a downlink subframe; and transmitting data for the two or more layers on the data region of the downlink subframe, wherein the reference signal for the two or more layers is a dedicated reference signal that is used to demodulate the data for the two or more layers on a receiving end, and in the multiplexing step of the reference signal, the reference signal for the two or more layers is code-division-multiplexed by an orthogonal code of a length of at least 2.