| Along with the communication technical renew continuously, the market compete Increasingly fierce,the situation that traditional network face is more and more severe. How can keep on persistent development in protecting the foundation of the existing investment, how acquire the new business growth to order in economizing the foundation of the network construction and maintenance cost.It's becoming a topic that major companies need to solve urgently.Mobile soft- switch is to lead the soft-switch into mobile network, accommodate soft-switch the laye for the next generation separation mobile network construction trend. Mobile soft-switch is a separation that passes to mobile network CS Domain bearer and control,and assemble control and scatters access, becoming the core network programming principle of a net of clear layering, matching the direction of the network development; Lead into the IP loads the speech,making use of the IP address ability of carry to carry,to form the net structure between media gateway, be advantageous to the simplification network structure; The mobile soft-switch that adopts IP bearer can carry out the method of network construction, lowering to construction costs of the net and the operation costs,provide abundant business and functions,and can acheive smothe volution from the existing mobile network to the nextgeneration network.This text introduced the basic concept of the mobile soft-switch and the next generation network firstly,and the system structur of the nextgeneration network based on soft-switch;and the basic networking pattern of the nextgeneration network,the protocol of network interface and the mode of network bakeup.Then introduced the bakeground and the networking pattern and the mode of network bakeup and the design parameters of ANHUI TELECOM NGN project.Then summary the final design program of ANHUI TELECOM NGN project according to the design parametersFinal, the text prospected the direction of development of the mobile next generation network with the advent of the CDMA. |