The IMS Network Design And Project Of Taiyuan Unicom

Telecommunication technology has developed rapidly during the 21st century. The market demands are promoting telecommunication development again since the end of the financial crisis in 2008. The market demands in the future are changing from simple voice technology to advanced and diverse multi-media technology; in the meantime, the telecommunication operators tend to update their old equipment with the minimal investment necessary to solve the technical problems in the current network; therefore, IMS (IP multi-media subsystem) depend on its rapid、simply、low-investment and ability to arrive at market demands in the future has been welcomed by telecommunication operator from all over the world.To begin with, IMS is an advanced multi-media business system which has been able to satisfy terminal customs’demands on a variety of multi-media businesses; then, IMS is core technique of fixed mobile convergence due to not being associated with access and support roaming.We have gained an extended understanding from IMS principle to IMS system structure, access protocol and call-progress through theoretical study. Apart from this, we did lots of research on the core technologies of fixed network and mobile network TAIYUAN UNICOM in the current and proposed ideas of design and project of TAIYUAN UNICOM core network with IMS. Combined with practical network capacity of Taiyuan Unicom, we analyzed the netting mode of core of fixed network and mobile network and determined the initial IMS construction principle. With network operating, the special maintenance model of IMS Network is growing up outstandingly, we should take some measures to optimize the maintenance model taking advantage of IMS, not only just paying attention to IMS technique; thereby achieving the best optimization of model operating and maintenance.