The Third Generation Mobile Telecommunication (3G) Network Technology
The information-based is the important topic that world develop nowadays, which enters since 90's in 20 centuries. The information-based construction of the world has already drawn back the prologue, only owning the information resources development and networks to apply the advantage, then can control active power of the information-based construction. information-based，has been the standard every countries The development nature that is the main industry of the information industry to move the correspondence becomes heavy to win of heavy.
The development of the third generation mobile communication experienced the competition of the system, it have already gradually evolved the standard of perfection, the development of the equipments and the competition of the future industry development. Facing the vigorous competition situation, it becomes a triumphant key factor in the market that is quickly providing the business, reducing the cost of bandwidth and exaltating the service quantity of communication. The focus of the key factor is the construction of the basal network. Transport network is the foundation network, so the construction of the 3G transport network play an important role in the whole network. How to go to the relation between the traditional service and the burgeoning data service, the relation between the existing network and the Large-scale 3G network, comprehensive technique cost and customer need, which to choose the technique and the project, all of them is the problem which we must consider.
This article take the third generation mobile telecommunication (3G) as the topic, carrying on the analysis and discussing. First，it introduced the development of 3G and the good and challenging environment。Go deep into the technique foundation of analyze its most and the key technique The full text compares to carried on the overall description and analysis to the background that the 3G network construction and the main technique use systematically.
Key words: CDMA，WCDMA，TD-CDMA，Connect the dint cut over