Abstract
A reference signal transmission method and apparatus in a multi-antenna system are provided. A terminal generates a plurality of reference signal sequences each assigned a different cyclic shift value, generates an OFDM (Orthogonal Frequency Division Multiplexing) symbol to which the plurality of reference signal sequences are mapped, and generates the OFDM symbol. Is transmitted to the base station via a plurality of antennas. Each cyclic shift value assigned to each reference signal sequence is determined based on a parameter n indicated by a cyclic shift field transmitted by a PDCCH (Physical Downlink Control Channel). (Selection) Figure 13
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