Method of transmitting uplink demodulation reference signal

PURPOSE: In the reference signal transmission method for the uplink demodulation is the inside a slot, the uplink demodulation performance is kept in LTE-advanced by using two or more DFT-s-OFDM symbols. CONSTITUTION: In the first slot, the sequence element C1, 0 or the C30 which is similar about the subcarrier 0, 1 becomes in case of the transmission antenna 1 and 3 with the use(301). The sequence element C1, 1 or the C3, 1 which is similar about the subcarrier 2,3 becomes with the use(302). In case of the transmission antenna 2 and 4, the sequence element C20 or C4, 0 becomes about the subcarrier 0 with the use(303).