Patent ID: 8098760

Claim:
A method for transmitting a reference signal in a wireless communication system, the method comprising: generating a plurality of reference signal sequences by cyclically shifting a base sequence x u (n); mapping each of the plurality of reference signal sequences to a corresponding Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbol among a plurality of SC-FDMA symbols in a subframe, the subframe including the plurality of SC-FDMA symbols in time domain and a plurality of resource blocks in frequency domain, each resource block including N subcarriers; and transmitting the mapped reference signal sequences in the subframe, 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.