Patent ID: 8619692

Claim:
A method for transmitting uplink reference signals through multiple antennas by a user equipment in a wireless communication system, the method comprising: receiving control information related to a first cyclic delay value and a second cyclic delay value from a base station; transmitting a first reference signal sequence to the base station, wherein the first reference signal sequence is generated by cyclically shifting a base reference signal sequence by the first cyclic delay value; and transmitting a second reference signal sequence to the base station, the second reference signal sequence being obtained by cyclically shifting the first reference signal sequence by a multiple of the second cyclic delay value, wherein the second cyclic delay value is set to a minimum of values larger than a cyclic prefix length, wherein the first cyclic delay value is determined according to the cyclic prefix length used in the wireless communication system, and wherein the first cyclic delay value is calculated by multiplying a symbol duration by a minimum of p/12 values larger than a value resulting from dividing the cyclic prefix length by the symbol duration, p being integers equal to or larger than 0 and less than 12.