Patent ID: 7848448

Claim:
A method for transmitting a reference signal in a wireless communication system, the method comprising: mapping a reference signal sequence r(n), defined by a base sequence x u (n) and having a length N, to N subcarriers; and transmitting the mapped reference signal sequences r(n) on an uplink channel, wherein the base sequence x u (n) is expressed by x u ( n )= e jp(n)π/4 , and if N=12, at least one of the sets of values provided in the below table is used as a set of values for the phase parameter p(n): p(0), . . . , p(11) −1 3 −1 1 1 −3 −3 −1 −3 −3 3 −1 −1 3 1 3 1 −1 −1 3 −3 −1 −3 −1 −1 −3 1 1 1 1 3 1 −1 1 −3 −1 −1 3 −3 3 −1 3 3 −3 3 3 −1 −1.