BASE STATION, WIRELESS COMMUNICATION SYSTEM, AND PILOT PATTERN DECIDING METHOD

摘要

In a wireless communication system using a pilot signal during transmission from a user terminal to a base station, the base station creates and holds an order table about the peak-to-average power characteristics of pilot patterns; extracts a difference from the user terminal transmission power or maximum transmission power; and refers to the order table to assign, on a priority basis, a pilot pattern having a good peak-to-average power characteristic to a user terminal having a large transmission power or having a small difference from the maximum transmission power. Alternatively, the base station adaptively assigns a pilot pattern, which has an order in accordance with the user terminal transmission conditions (the transmission power, the distance from the base station and so on), to the user terminal.