| 摘要 |
A transmission apparatus in a radio communication system which simultaneously uses a plurality of different radio frequencies to transmit signals. The apparatus includes a radio format setting portion, which is provided for each transmission frequency of the plurality of different radio frequencies and separately sets a radio format of transmission signals for each transmission frequency; and a transmitter, which is provided for each transmission frequency of the plurality of different radio frequencies and transmits signals at each of said transmission frequencies. Each radio format setting portion sets a pilot length of the transmission signals separately for each transmission frequency of the plurality of different radio frequencies.
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