Intelligentized Transformation And Implementation Of Chongqing Telecom Fixed Network

At present, as market competition intensifies, the global telecommunications operators have implemented the strategic restructuring. Although the specific strategies vary, their overall directions are the same: through a convergence of multi-network, multi-terminals and multi-business as well as the extension of the value chain, they intend to achieve changes from a traditional basic network operator to an integrated provider who can provide information services any time and any place. And the network transformation is the basis of a series of restructuring. NGN (Next Generation Network) has become one of the hottest topics in communications industry, which is expected to resolve many present problems in all types of networks. To the traditional fixed network operators, the use of NGN technology to upgrade the voice network becomes more and more urgent and important, by which the network is more open, flexible, rapid in response and able to satisfy the need of market competition. This paper not only describes the NGN structure, standardization process of NGN and the telecommunication network evolution based on the Soft Switching technology, but also discusses the relationship between the Soft Switching and IMS (IP Multimedia Subsystem). Against the existing PSTN (Public Switched Telephone Network) this paper has also discussed several solutions to intelligent transformation of fixed network, including " Board + Tandem Bureau visit SHLR(Smart Home Location Register)" solution, "TDM Tandem Bureau fully visits SHLR" solution and "Soft Switching Tandem fully visits SHLR" solution. Use of SHLR can separate the user attributes from business carrying network, upgrade network intelligence and lay a foundation for evaluation to NGN. Comparing the above solutions as well as concerning the actual Network of Chongqing Telecom we choose the "Soft Switching Tandem fully visits SHLR" solution to implement the intelligent transformation. Adopting the Soft Switching technology in present network combines the NGN development with fixed network intelligence. On one hand, it can avoid the existing technological bottlenecks of switching equipments and meet the traditional and emerging value-added business needs. On the other hand, it can do good to the optimal structure of the network and the integration of resources, avoid duplicate construction, lower the construction investment and maintenance costs. Through the implementation of this specific solution we have effectively solved the problems of original network and enable existing networks to meet various business development and network convergence needs. Finally, the paper also discusses the future direction of the fixed network development and how to evaluate to IMS-based NGN smoothly.