The Design And Project-Practice On A New Generation NGN Of Chenzhou Railcom

After the long-term development through Internet and voice network in ChenZhou TieTong, more and more network problems gradually appeared, so network improvement becomes very urgent. Also because current construction needs of optical fiber into and the Copper out, PSTN network’s optimization, timely using the software exchange, communication networks becoming bandwidth and multimedia, and integration of the traditional internets and mobile 3G. In order to meet market development’s requirement and enhance the advantages of competition in the future, ChenZhou TieTong’s Internet and PSTN definitely have to run onto the road of network transformation optimization.This paper points out that the chenzhou tietong network at present the difficulties and the trend of the development of the network. Again from existing operators used network technology is mentioned, and looking to the future of the network technology operators, such as:NGN technology, EPON technology and GPON technology. For NGN technology, EPON technology, GPON technology are discussed. Including the concept of the soft exchange, the soft exchange system structure, basic elements, the soft exchange use the soft exchange agreement, the design principle and achieve the goal, the advantages of the soft exchange the further discussed. At the same time the soft exchange and NGN of the relationship of in-depth research, eventually got the integrity of the soft exchange concept and in the soft exchange and NGN difference lies. Then this paper the PON relevant technology research, including PON technology, the principle of the PON technology development trend. On the next generation PON technology to indicate the five direction. In short, the soft exchange, NGN, PON technology is a new generation of Internet core technology. This paper are described in detail in the future chenzhou tietong a new generation network technology development lays theoretical foundation, at the same time for the future of the network to escort normal maintenance.The key to paper department in part 3, namely chenzhou tietong network overall design scheme. The first part of chenzhou tietong network needs analysis, presents the design principles; Then give NGN construction general thought. The network construction bureau put forward the basic program, and gives the network topology network bureau, this stage key technology is placed in the soft exchange bureau of the position. Bureau of the basic network plan, propose core network construction total solution. Core nets stage SS directly through access SHLR MAP, the soft exchange domain users (narrowband speech user+multimedia terminal user) by SS responsible for call control and intelligent business trigger, comprehensive and consequently bureau is responsible for the PSTN users call control and intelligent business trigger, to the equivalence nets stage, this phase can be used as the future of the network architecture chenzhou tietong goal. Chenzhou tietong next generation network is completed, the evolution of the network is also given in this paper clear direction. With an ageing PSTN switch, the original PSTN users will then constantly moved to NGN domain, this time can be one-time PSTN user moving to SS, the SS united complete including PSTN users, the entire network users call control, business trigger, etc. At this time the original bureau can consequently the evolution of the media gateway TG equipment.In a word,this paper analysis the problems which existed in Chenzhou TieTong network, than combines with the development trend of next generation networks. Finally, this paper proposed a new construction plan, which can be used for next generation network construction in Chenzhou TieTong. This new plan further enhanced the network and analysis the network evolution. At the same time, this paper gives proper recommendations in the plan configuration and network performance monitoring.If one project implements this plan, this project’s network quality will be further improved. And the voice and the Internet can share the same platform, network has common IP. It can provide users of one multimedia service which integrates voice, data and video. This plan also lays a solid foundation to develop Chenzhou TieTong network to a deeper level, gradually achieves full network has common IP, and integrates network...