Patent ID: 9198230
Filing Date: 2015-11-24
Classification: H04B,H04W

Abstract:
1. A radio base station used in an FDD radio communication system in which an uplink frequency band is different from a downlink frequency band, comprising: at least one antenna; at least one duplexer configured to extract a signal component of the uplink frequency band from a radio signal received by the antenna; a frequency converter provided on a signal path between the antenna and the duplexer and is configured to convert a signal component of the downlink frequency band contained in the radio signal received by the antenna to a signal component of the uplink frequency band; a measurement unit configured to perform a measurement on the signal component of the uplink frequency band extracted by the duplexer, wherein the measurement unit measures received power; a transmitter configured to transmit a radio signal via the duplexer and the antenna; an inter-base station communication unit configured to receive transmission power information showing transmission power of a radio signal transmitted by another radio base station by using an inter-base station communication; and a controller configured to determine a transmission parameter to be used when the transmitter performs transmission processing on a radio signal, based on received power information obtained by the measurement unit and the transmission power information received by the inter-base station communication unit.