Patent ID: 9237052
Filing Date: 2016-01-12
CPC Classification: H04L,H04W

Claim Text:
1. A radio base station used in a radio communication system in which a single-carrier frequency-division multiple access (SC-FDMA) scheme is adopted for an uplink and an orthogonal frequency-division multiple access (OFDMA) scheme is adopted for a downlink, comprising: a receiver configured to perform reception processing on a radio signal transmitted by an another radio base station in the SC-FDMA scheme or the OFDMA scheme; an orthogonal frequency-division multiplexing (OFDM) demodulator configured to convert a received signal obtained by the receiver from a time domain to a frequency domain and perform a primary demodulation of the resultant signal; a frame processor configured to convert a data symbol obtained by the OFDM demodulator from a frequency domain to a time domain and perform a secondary demodulation of the resultant symbol; a measurement unit configured to determine a received power of the radio signal transmitted by the another radio base station by measuring a signal which is a signal after conversion to the frequency domain by the OFDM demodulator and is the signal before conversion to the time domain by the frame processor; an inter-base station communication unit configured to receive information including a transmission power of the radio signal transmitted by the another radio base station, wherein if the transmission power received from the inter-base station communication unit is larger than the received power determined by the measurement unit, the measurement unit measures values showing a magnitude of an amplitude error and a phase error between a data symbol and a reference point of the data symbol.