METHOD FOR CONTROLLING TRANSMISSION OF SIGNAL FOR MEASURING QUALITY OF BASE STATION, USER TERMINAL, AND RECEPTION CHANNEL

摘要

In a radio communication system, a reception channel quality measurement signal transmitted from each user terminal is multiplexed by a distribution type FDMA which allocates a distribution type frequency block formed by frequency sub-carriers discretely distributed in a system bandwidth. The system bandwidth has a binary tree structure. Each division band is divided into two. A base station of the radio communication system includes: means for deciding a transmission bandwidth of a reception channel quality measurement signal for allocation to each user terminal according to a path loss between the local station and the user terminal, which loss has been reported by each user terminal; means for allocating a division band corresponding to the decided transmission bandwidth among the division bandwidths and deciding the transmission frequency; and means for reporting the transmission bandwidth and the transmission frequency.