BASE STATION APPARATUS, SEQUENCE ALLOCATION METHOD, AND REFERENCE SIGNAL GENERATION METHOD

摘要

PROBLEM TO BE SOLVED: To reduce inter-cell interference of a reference signal when a ZC sequence is used as the reference signal in a mobile communication system.

SOLUTION: R×M pieces of sequence specified by a ZC sequence number r(r=1 to R) and a cyclic shift sequence number m (m=1 to M) are classified into a plurality of sequence groups X (X=1 to R) in accordance with the transmission bandwidth of a reference signal, so that the ZC sequence is allocated to each cell in each sequence group unit. When it is assumed that R=9 and M=6, the number of sequence is 54; each of the sequence groups is formed by two sequences; accordingly, the number of types of sequence groups is 27; and the 27 types of sequence groups are allocated to each cell.

COPYRIGHT: (C)2011,JPO&INPIT