METHOD FOR EXPANSIVELY TRANSMITTING CHANNEL ESTIMATION REFERENCE SIGNAL AND METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING CHANNEL ESTIMATION REFERENCE SIGNAL USING SAME

摘要

The present invention relates to a method for expansively transmitting a channel estimation reference signal and a method and a device for transmitting and receiving the channel estimation reference signal using the same. According to one embodiment of the present invention, a method for transmitting control information to expansively transmit a channel estimation reference signal comprises the steps of: allowing a base station to determine not to transmit a channel estimation reference signal through a first frequency band, relative to a first user terminal which was set to transmit the channel estimation reference signal in the first frequency band; generating first control information which instructs a second user terminal to transmit the channel estimation reference signal in said first frequency band; and transmitting a wireless signal including said generated first control information to the second user terminal.