| 摘要 |
A radio communication apparatus capable of minimizing the affection of feedback information on line capacity without degradation of information transmission efficiency due to transmission of a pilot symbol. In the apparatus, a delay dispersion measuring part (272) uses a received signal to make a delay profile and measures delay dispersion indicative of dispersion of delayed waves. A movement speed estimating part (274) estimates, based on variation of reception electric power of the pilot symbol, the movement speed of a mobile station apparatus that has transmitted the pilot symbol. An other- cell interference measuring part (276) uses the pilot symbol to measure an other-cell interference caused by a signal transmitted from a cell other than the cell to which the local apparatus belongs. A pilot pattern information producing part (278) produces pilot information by selecting a pilot pattern, in which the location of the pilot symbol in a frame is the most desirable, in accordance with the delay dispersion, movement speed and other-cell interference. |
