Bbu refers to the building baseband unit (indoor baseband processing unit), and rru refers to the radio remote unit (radio frequency remote unit). bbu (indoor baseband processing unit) bbu is mainly responsible for the processing of baseband signals. base. Bbu and rru are key components in the 4g communication system. The full name of bbu is building baseband unit, which is an indoor baseband processing unit, responsible for processing the baseband part of wireless signals. And rru is radio remote unit. Bbu and rru are both mobile base station equipment. Bbu is uplink for transmission, downlink is rru, and rru is connected to the antenna. rru is equivalent to a transceiver, which receives and transmits signals, bbu+rru=bts mobile transceiver station bbu (bui lding base band unite) indoor baseband.
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