Patent ID: 8571557

Claim:
A relay station capable of relaying communication between a radio communication terminal and a base station, the relay station comprising: a communication quality acquisition unit which, when communication between the radio communication terminal and the base station is relayed, acquires communication quality in communication between the self-station and the radio communication terminal; an interference determination unit which determines whether the communication between the self-station and the radio communication terminal is receiving interference based on the acquired communication quality; and an interference notification unit which, if it is determined that the communication is receiving interference, notifies the base station of interference information informing of the interference in order to prompt handover of a radio communication terminal, which is communicating with the base station, wherein if it is determined that the radio communication terminal is receiving interference, the interference notification unit notifies the base station and another base station adjacent to the base station of the interference information informing of the interference in order to prompt handover of an radio communication terminal, which is communicating with the base station, and wherein the communication quality acquired by the communication quality acquisition unit is an RSSI, and one of an SINR or a CINR.