WIRELESS COMMUNICATION SYSTEM, LARGE CELL BASE STATION AND COMMUNICATION CONTROL METHOD

摘要

A large cell base station (100) calculates a small cell base station interference ratio, defined as the ratio of the RSRP (small cell base station†’large cell terminal), which is the interference received from a small cell base station (300) relative to I (large cell terminal), which is the value regarded as the total interference received by a radio terminal (200) connected to the large cell base station (100). When the small cell base station interference ratio is greater than or equal to a threshold (±), the large cell base station (100) sets a transmission power adjustment rate so that the SINR in the radio terminal (200) is a predetermined decibel value ²[dB] or greater, and transmits the rate to the small cell base station (300).