Patent ID: 8594229

Claim:
A method for transmitting a reference signal, by a user equipment, in a wireless communication system, the method comprising: transmitting the reference signal, the reference signal being generated based on a cyclic shift and a base sequence x u (n), wherein the base sequence x u (n) is expressed by x u ( n )= e jp(n)π/4 , and wherein a length of the base sequence x u (n) is one of 12 or 24, wherein, if the length of the base sequence x u (n) is 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, and wherein, if the length of the base sequence x u (n) is 24, at least one of the sets of values provided in the below table is used as the set of values for the phase parameter p(n): p(0), . . . , p(23) −1 −3 3 −1 −1 −1 −1 1 1 −3 3 1 3 3 1 −1 1 −3 1 −3 1 1 −3 −1 −1 −3 3 −3 −3 −3 −1 −1 −3 −1 −3 3 1 3 −3 −1 3 −1 1 −1 3 −3 1 −1 −1 −1 1 −3 1 3 −3 1 −1 −3 −1 3 1 3 1 −1 −3 −3 −1 −1 −3 −3 −3 −1 −1 −3 1 1 3 −3 1 1 −3 −1 −1 1 3 1 3 1 −1 3 1 1 −3 −1 −3 −1 −1 −3 −1 −1 1 −3 −1 −1 1 −1 −3 1 1 −3 1 −3 −3 3 1 1 −1 3 −1 −1.