The Application Of The DDB Technology To The Production Of BSC For The 3rd Generation Mobile Communication System

DDB is the result of combination of distributed technology and traditional database, which reflects the definite tendency of the database system from centralization to discentralization. Especially after 1990, the constructions of rising networks and communication infrastructures on a large scale pressingly need scattered management and distributed operation on mass data and information, which further boosts continual perfectness and breakthrough in the disposal of distributed data so as to meet special demand of the given environment.The 3rd Generation mobile communication standards, chiefly characterizing CDMA, are wireless access technologies for far distance, cdma2000 is one of the 3G international standards, and Central Base Station Controller is important part of Base Station System in the cdma2000 wireless mobile communication network. As a good-sized telecommunication system device, CBSC must runs stably and safely. The distribution of data on many circuit boards inside machine frame of the CBSC system gives rise to that of database, moreover bringing forth even more stern requirements.Firstly, this paper casts back the historical background of DDB and expatiates on the basic concept and technical key. Secondly, emphasize what it focuses on in abstract communication network system. Again, simply introduce the evolutional course of the 3rd mobile communication and the key technology of CDMA, as well as the comparison between CDMA and communication technologies today. Next , systematically explain the composition of cdma2000 mobile communication network and the fundamental framework of CBSC. Then, discuss in detail how the DDB technology applies to the CBSC system and how to realize its function. At last, expound developing & debugging tool as well as procedure, and bring forth personal view of improvement.