PROBLEM TO BE SOLVED: To provide a method for setting a cyclic shift sequence to a frequency offset.SOLUTION: One embodiment of the present invention includes the processes of calculating a distance between a channel response position of a sequence and an alias channel response position of the sequence caused by a frequency offset, calculating the number of cyclic shifts per group constituting the sequence according to an interval of the calculated distance, and setting a cyclic shift applying interval. Even when a reception signal is shifted by channel delay spreading or radio wave delay, the cyclic shift applying interval is set by an easy method at a position not overlapping with each other in consideration of a channel response of a reception sequence and an alias position of the reception sequence, so that detection errors and a false alarm rate due to the frequency offset are greatly reduced. When a sequence to apply the cyclic shift is allocated to a cell having the frequency offset at or above a prescribed level, influence of the frequency offset on a high-mobility cell can be minimized.