Local Switching Network Reconstruction Based On The Research And NGN

With the development of Internet technology, particularly Internet-based Voip technology continues to practice in today's telecommunications market in terms of business services and operational modes of delivery are undergoing rapid changes that profoundly affect the structure and infrastructure networks characteristics. PSTN network to speed up the pace of reform, combined with light back into the copper access network, the prevalence of the rapid increase in broadband services, as well as the gradual growth of NGN network size and maturity, marked the telecommunications network has entered a period of great change and transition.Next generation network is built on the packet switching technology is based on the system structure, and various forms of information, convenient, video, images of voice and data, etc. Various media business opening, the network system integration. In this sense, the next generation network covering the longitudinal network service (application) layer, the control layer, the transport layer, the access layer, even all sorts of next-generation technology terminal level, including fixed nets, transverse mobile, such as the Internet network system of the next generation of technology. Despite the next generation network included in the next generation of technology, but the main technical characteristics should be attributed to network between each layer USES open apis interface, agreement or to break the traditional pattern of closed, telecommunications integration of various heterogeneous network support. More precisely, the next generation network system through the business and call control separation, call control and load control separation to achieve relatively independent layered structure, with the upper layer of the business, not the heterogeneous network access to truly independent business open for business, independent service provider of business operators independently, and even provide a broad space. The increasing competition in the market, how to meet the market demand of new intelligent business, effectively reduce the investment and operation and maintenance cost, increase ROI, also can make the Internet more flexibility and have better business quality, provide better service for customers, has become the primary consideration. Operators, But in the early stages of development, NGN really can attract the user "killer" business needs cultivating and undergo inspection, so in the market at the network construction process NGN to pay close attention to the benefit of investment, especially for the traditional fixed-line operator, due to its own numerous fixed-line exchange equipment, completely abandoned the original PSTN, NGN transformation efforts to bring investment and profit is bound to the huge pressure, and to protect the fixed-line aspects in the investment, simultaneously satisfy traditional pabx system for new users within the network business requirements of the network reconstruction or upgrade for soft switching yuan, will surely become the key choice.In this background and circumstances, NGN network in the guangxi telecom intelligent projects to enhance network of intelligence and ability, and provide services for the future of Internet evolution and 3G, IMS fusion lay a good foundation. My company as a traditional PSTN network operators in the network, and how to achieve rapid transformation in the evolution of change, is one of the key problems to consider. This paper based on the fixed-line network survival and the development of switch within the soft exchange network combining the current situation, development process and direction, energy consumption and revitalize the assets from the actual income, network, transition into the light into construction requirements of copper retreat, the local fixed-line network optimization and transformation is proposed. This paper firstly describes the research background, research and achievements. Then detailed introduces the soft exchange technology background, topology and standardization, aiming to NGN network evolution fixed-line contents, and the future development is discussed. And from the local network of current PSTN switches specific situation, problems and NGN network based on the feasibility of the reform, this paper discusses the aspects of the network to the evolution of ideas and NGN transformation of the concrete implementation steps and matters needing attention. Finally on traditional circuit switching NGN network reconstruction to summarized and future prospects, and some problems in the construction and the experience in this part are summarized.