| 摘要 |
Disclosed are a base station, a mobile station, a pilot transmission method, and a channel estimation method, whereby excellent zone interference blocking characteristics can be obtained and high channel estimation precision is ensured even on a propagation path with low frequency correlation similar to when transmitting on an SFN of an MBS. A pilot symbol generating unit (110) divides a minimum resource unit, which is the minimum unit of resource allocation during MBS transmission, into a plurality of sub blocks on the basis of the correlation bandwidth corresponding to the delay spread of a propagation path in an MBS zone, and generates a pilot sequence by multiplying an orthogonal code sequence, which sets the length corresponding to the number of pilot symbols contained in each sub block as the orthogonal code length, by the pilot symbols contained in each sub block.
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