The invention relates to an improved distribution-type
base station architecture and a realization method. Device of the improved distribution-type
base station architecture consists of BBU and RRU, wherein connection of BBU is: a
laser is connected with a serial / parallel transformation module, an optical
interface protocol framing and deframing module is respectively connected with the serial / parallel transformation module, a
baseband data link layer
processing module and an operation maintenance module, the
baseband data link layer
processing module is connected with an upper
layer interface module, and the upper
layer interface module is connected with an upper layer; and the connection of RRU is: a
laser is connected with a serial / parallel transformation module, an optical
interface protocol framing and deframing module is respectively connected with the serial / parallel transformation module, a
baseband data
physical layer processing module and an operation maintenance module, the baseband data
physical layer processing module is connected with a middle-frequency processing module, the middle-frequency processing module is connected with a radio-frequency processing module, and the radio-frequency processing module is connected with an antenna; and the
laser of the BBU is connected with the RRU laser. The optical
transmission bandwidth is small, the cost is low, the stability is high, and the
system upgrading can be realized.