CDMA RADIO BASE STATION

PROBLEM TO BE SOLVED: To simplify the configuration for composing the received signals in an inter-sector handover state in a CDMA radio base station provided with plural sector antennas having directivity and capable of receiving signals modulated by a CDMA system and radio transmitted from a mobile station by these antennas and demodulating the received signals. SOLUTION: This CDMA radio base station is individually provided with non-handover signal processing parts B1a to B2a, B1b to B2b for demodulating a signal received by a single antenna in each of receiving parts S1a, S1b of respective sector antennas T1a, T1b and handover signal processing parts B3a, B3b capable of synthesizing signals at the time of demodulating signals received by plural antennas and control means 27a, 27b respectively detect an inter-sector handover state receiving the same signal radio transmitted from a mobile station by plural antennas and allow the handover signal processing parts B3a, B3b to demodulate and synthesize the received signals.