BASE-STATION DEVICE AND COMMUNICATION METHOD

摘要

By a base station that is not limited to a cell concept, the system control cost is controlled and an area of high-communication-speed/high-communication-quality is expanded. There are provided fixed-cell support base-station devices 420 and 421 having functions of physical layer processing and higher layer processing according to the cell concept in the related art and an unfixed-area support base-station device 430 having a physical layer processing function that is not limited to the cell concept. The unfixed-cell support base-station device 430 performs physical layer signal processing for a terminal in a low throughput area and selects an arbitrary antenna group from antennas or antenna group linked to the fixed-cell support base stations 420 and 421, and the fixed-cell support base stations 420 and 421 transmit their own transmission signals and transmission signals directed to the terminal together.