| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a communication device capable of enhancing channel estimation accuracy with appropriate demultiplexing of a multiplexed reference signal.SOLUTION: A base station device includes a channel estimation unit 10 for estimating a channel characteristic of each of a plurality of reception signals. The channel estimation unit includes a division calculation unit 11, a DCT unit 12, a window processing unit 13 and a plurality of IDCT units 14. The channel estimation unit performs discrete cosine transformation of the transmission path frequency response of a received multiplex signal having a plurality of multiplexed reference signals by cyclic shift, and based on the transmission path time response obtained therefrom, estimates the channel characteristic.</p> |
