Patent ID: 8514702
Filing Date: 2013-08-20
Classification: H04W

Abstract:
1. A radio base station comprising radio equipment and a radio equipment control which are connected through a physical circuit, wherein the radio equipment includes: an uplink communication processing unit configured to transmit uplink IQ data, as uplink IQ data for a combination of each antenna and each carrier, to the radio equipment control through the physical circuit, the transmitted uplink IQ data acquired by demodulating an uplink signal of each carrier received through each antenna; and a downlink radio unit configured to transmit a downlink signal of each carrier through each antenna, the downlink signal acquired by modulating downlink IQ data for a combination of each antenna and each carrier received from the radio equipment control through the physical circuit, the radio equipment control includes: an uplink communication processing unit configured to acquire uplink user data from the uplink IQ data received from the radio equipment through the physical circuit; and a downlink communication processing unit configured to transmit the downlink IQ data acquired from downlink user data to the radio equipment through the physical circuit, in the radio equipment control, when the occurrence of an uplink communication failure is detected in the physical circuit, the downlink communication processing unit transmits the downlink IQ data for all combinations of antennas and carriers to the radio equipment with all values of the downlink IQ data set to “0”, and the downlink radio unit stops the transmission of downlink signals of all the carriers through all the antennas when the downlink IQ data whose values are all “0” is received.