Base band pool device, and method for implementing base band data switch thereof

#This application is the U.S. national phase of PCT Appln. No. PCT/CN2010/073435 filed Jun. 1, 2010 which claims priority to Chinese application 200910179698.7 filed Oct. 20, 2009, the disclosures of which are incorporated in their entirety by reference herein.

#The present invention relates to a wireless communication system, and in particular, to a baseband pool device and a method for implementing baseband data switch thereof.

#In recent years, the development of the wireless communication system architecture gradually evolves into a trend of a distributed base station system. The distributed base station system is to separate a Base Band Unit (BBU) from a Remote Radio Unit (RRU) of a base station, i.e., separating a baseband processing module from a radio frequency module, and to connect the BBU with the RRU through the transmission media such as optical fibers etc.

#FIG. 1 is a structural diagram of a baseband pool device in the related art;

#FIG. 2 is a structural diagram of a baseband pool device according to the present embodiment;

#FIG. 3(a) is a flowchart of a baseband pool device receiving downlink data according to the present embodiment;

#The main concept of the present invention is based on a structure of the baseband pool in the related art illustrated in FIG. 1, which can change the centralized baseband data switch into that each baseband processing unit itself has a baseband data switch module with a small capacity, thus implementing distributed switch of the baseband data.

#The technical scheme according to the present invention will be further described in combination with accompanying drawings and specific embodiments hereinafter.

#A baseband pool device can implement baseband data distributed switch. The structure of the baseband pool device is shown in FIG. 2, which comprises a plurality of baseband processing units (comprising four baseband processing units 100, 200, 300 and 400 in the present embodiment), a network interface module 500, a radio frequency module, a control unit 600 and other modules (such as clocks and power etc.). The functions of each portion will be described hereinafter.