RADIO COMMUNICATION SYSTEM, METHOD FOR RADIO COMMUNICATING, SUITABLE BASE STATION USED FOR THEM AND MOBILE STATION

摘要

PURPOSE: To increase a down link capacity by improving an accuracy of a channel estimation when a base station transmits individual channels via directional beams. CONSTITUTION: The base station 10 includes individual channel transmitter 15 for transmitting the individual channels in which a pilot symbol is inserted, and a format generator 14 for the individual channel for generating a format of the individual channel. The generator 14 changes the format of the individual channel in the case of transmitting via the directional beam, and the format of the individual channel in the case of transmitting via a non-directional beam.