| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication device, a communication method and an integrated circuit, reducing inter-sequence interference on a pilot signal between terminals with the suppression of inter-sequence interference among a plurality of pilot signals used in an identical terminal, even when SU-MIMO and MU-MIMO are simultaneously applied.SOLUTION: A base station device 100 includes: a transmission RF unit 103 which transmits, to a terminal, control information for identifying correspondence, in which one of a plurality of cyclic shift amounts is associated with one of a plurality of orthogonal sequences, for each of a plurality of layer numbers; and Based on the correspondence specified by the control information a reception RF unit 104 which receives a signal generated using the cyclic shift amount for each layer number and the orthogonal sequence and transmitted from the terminal. The cyclic shift amount takes 12 values, from 0 to 11, and to an identical layer number among the plurality of layer numbers, two cyclic shift amounts of which difference is 6 are respectively associated with different orthogonal sequences.SELECTED DRAWING: Figure 7 |
