The Design And Practice On IP Bearer Network CDMA Of Ningxia Telecom

China telecom October 2008 undertake CDMA network, for rapid expansion mobile business, on the one hand, invested a huge sum of money, rapid upgrade to C nets, with less than a year time, CDMA network from 2G network upgrades to the present EVDO 3G networks, enabling the network covering, the Internet speed to get fast ascension; On the other hand, China telecom USES the original strong network resources and technical resources, deepened ceaselessly, strengthening fixed network business and C nets business integration, the original only on the solid online realization of various applications, rack through to CDMA network, various based on wireless network industry application layer are emerging one after another, such as mobile office, global eyes, one card, IPTV, etc, to the telecommunications business development has brought great benefits, but in market and bring market and benefit, but also for CDMA network maintenance put forward higher request, especially CDMA network, how to load bearing CDMA business network in this paper is the key.The paper first IP bearing CDMA wireless network business is discussed, and through the communication network development trend, IP technology are analyzed, and then to IP bearing China telecom CDMA multi-business feasibility. And put forward in telecom existing IP backbone CN2 basis, through increasing CE equipment, realize CE+ CN2 network structure, bearing the CIP then according to various bearing business, and put forward the corresponding network load logical framework.VPN technology is IP bearing network may be widely applied to the key technology. Its application makes bearing in IP network communications between the different network yuan possible. MPLS/BGP VPN can make telecom operators and other large IP/MPLS network for the users to provide a method based on network and easy management, expand the gender is good, has the same on ATM/FR virtual circuit VPN has the same level of security, has authored QoS guarantee, arbitrary nodes interconnection VPN.Taking MPLS VPN technology principle as the foundation, through from business for carrying and demand Angle, based on the division of VPN CDMA network internal visits demand design analysis and the implementation scheme, mutual visits strategy paper (including link docking, routing docking, type VRF (variable refrigerant flowrate) docking and QOS docking, etc), the study designed with high scalability, safety isolation, flexible visits, easy to implement end-to-end MPLS VPN technical architecture IP network load model.The main purpose of this design is based on IP bearing network technology research, designed for 3G mobile business development of bearing network structure. Meanwhile in paper finally, I also in ningxia telecom current network structure makes a simple analysis, I also would like to own research present area nets transport department as then ningxia telecom network optimization of reference.