Design And Implementation Of Reconstruction Dalian Mobile Metro Transmission Network

Transmission network is the base of the telecommunication network, it carries the business for the entire network to provide transmission channel and the transmission platform. With the continuous development of represented by Internet data services and multimedia services, telecom operation pattern change, transport network construction in the future must meet the bandwidth requirement of business development. Transformation and expansion of transport network Dalian metropolitan area will provide strong support for the Dalian mobile future business development promote the overall communication ability and service level, improve the economic benefit of enterprises.The paper firstly discusses the necessity of existing transmission network expansion rectification, and then introduces the Dalian mobile transmission network by using SDH, OTN, PTN technology and equipment, and through the comparison of several future business forecasting method, select a minimum error forecasting method to predict the future business, based on the prediction results future demand for bandwidth are calculated, and the basis for detennining the scale of expanding the bandwidth. After the completion of the investigation and detailed analysis of the existing situation of mobile Metro Transmission Network in Dalian, according to Mobile Corporation of Metro Transmission Network Organization rules, combined with the results of bandwidth estimation, put forward three network expansion rectification programme, including SDH, OTN and PTN network expansion of the correction scheme. Scheme is proposed for the solution of the existing SDH network of suburban county business return insufficient bandwidth, OTN a plane channel problems, network coverage, PTN nodes and fewer problems. At the same time, this scheme has been by moving the Dalian branch and provincial audit, started to implement.After implementation of the project, the actual operation of the network to achieve the desired goal, network communication ability and service scheduling flexibility greatly enhanced, proves that the prediction model of correct calculation network of the future bandwidth requirement is feasible, solves the technical problems of network bandwidth demand forecasting.