Sequence mapping method and apparatus in wireless communication system

An embodiment of the present invention relates to a method for mapping a sequence in a wireless communication system, comprising the steps of determining one or more resource blocks to which the sequence will be mapped; and mapping a plurality of modulation symbols to a plurality of resource elements included in the resource blocks, wherein the resource elements are positioned in regions other than OFDM symbol regions indicated by a physical control format indicator channel (PCHICH).