METHOD FOR GROUPING AND TRANSMITTING SEQUENCE

摘要

PURPOSE: A sequence grouping method for preventing performance deterioration of channel estimation and a sequence transfer method are provided to maintain low correlation maximum between uplink reference signals about 1RB/2RB case. CONSTITUTION: Permutation is applied to an index of 1 RB(Resource Block)/2RB sequence(S310). 1RB/2RB sequence in which a permutation is applied is grouped with a sequence(S320). A CGS(Computer Generated Sequence) about 1RB/2RB is included in first step. A ZC(Zadoff-Chu) which is more 3RB is applied in circular shift. The ZC sequence which is more 1RB sequence, 2RB sequence and 3RB sequence is a cyclic extension type sequence.