Apparatus and method for transmitting and receiving reference signal in a wireless communication system using mimo and system thereof

The present invention relates to an apparatus and method and system for transmitting reference signals in a wireless communication system, in particular a multiple-input multiple-output for transmitting a reference signal in a wireless communication system using a (Multiple Input Multiple Output, MIMO) scheme to an apparatus and method and the system. Method in accordance with one embodiment of the present invention, a method for transmitting a reference signal from the transmitter of the wireless communication system using a multiple input multiple output system, the to be transmitted to more than one port of each of one or more antenna elements determining a number of transmissions of the reference signal to the number of the antenna elements included in each port; The step of creating a different pattern transmitted cyclically by the number of transmissions for transmitting the reference signal by the number of transmissions; And according to each pattern of said generated by mapping the reference signal to at least one of said antenna element transmitting in sequence; may include.