Method for transmitting sounding reference signal in MIMO wireless communication system and apparatus therefor

A method for transmitting sounding reference signals (SRSs) by a User Equipment in a MIMO wireless communication system, the method comprising:

• receiving sounding reference signal parameters from a base station (BS), wherein the sounding reference signal parameters including an initial cyclic shift value nCSSRS, and an initial transmissionComb parameter value ktc;
• and
• transmitting the sounding reference signals simultaneously to the BS at a specific transmission time interval,
• wherein when the sounding reference signal transmission is triggered via high layer signaling, the sounding reference signals are generated based on a cyclic shift value and a transmissionComb parameter value, and
• wherein the cyclic shift value is configured based on number of antenna ports used for the sounding reference signal transmission, and
• wherein the transmissionComb parameter value is determined based on the number of antenna ports and the initial transmissionComb parameter value ktc, when the number of antenna ports is four.