The Expansion Construction Plan About Convergence Layer Of Zhengzhou Unicom Local Core

This paper, by 2011 China Unicom local transmission network of Zhengzhou core convergence layer extend project, focuses on network technology of local transmission core convergence layerWith the popularity of mobile Internet, broadband and upgrading of the" triple play", all kinds of business bandwidth demand is bound to a larger increase. Upgrading mobile network service quality and user experience, to reduce the bandwidth charges, reduce network construction and maintenance cost, become focused on network construction work, also be the operators to win in the market competition the key factors. The transmission network as carrying all types of business based network, is affecting the business opened, high and low cost, the network quality and scalability, service quality is the key link in the whole communication network development, plays an important role in.In this paper, through the analysis of Zhengzhou Unicom local transmission network core convergence layer status, listed appear net OTN/WDM system, the ASON/SDH system, service network, interconnection, network management system, network integration, local pipeline, cable and other specific circumstances and existing problems. The status quo of technical analysis and comparison of network expansion, optimization of construction scheme and technical difficulties of the solution. And the program used in the ASON, OTN technology are introduced. At the end of the project are summarized, the problems and put forward the concrete solution measures and recommendations. For each of the carriers to local transmission network convergence layer construction of core network provides the valuable experience.Local transmission convergence layer expansion core construction is a complex and arduous system engineering, examples of experience of expansion construction work has a very important guiding role. So we should study more hard optimization problems, collecting case, sum up experience, make their own participation in the construction process and constantly improve the ability to solve problems.