Research On PON Network Evolution Strategy Under The Background Of Broadband Speed-up Strategy

The 5G era is coming.The carrier network of telecom operators will face the requirements of full service and the access capacity of high bandwidth.Under the background of national "Speed-up Strategy",the passive Optical network(PON)as the basis of the carrier network,the rationality of evolution scheme and the quality of network construction will directly affect the performance of the whole full service bearer network.How do operators achieve smooth transition of bandwidth acceleration scheme on the basis of current huge PON network,how to ensure the rationality and scientificity of the evolution scheme,how to ensure the maximum benefit,which have become an important issue faced by operators.This thesis is based on practical work experience.The object of study is a PON network evolution strategy for OLT and ODN nodes carrying all kinds of services.The details are as follows:(1)The research background of this thesis is introduced.And the development status of broadband network at home and abroad is summarized.On the basis of fully mastering the optical access network and PON technology,through the research and collection of internal operators' network status data,this thesis summarizes the bottlenecks of the development of PON network in OLT equipment platform and ODN network capacity.(2)The development forecast,diversified demand,high-bandwidth development forecast and bearing demand of various services to be faced with in the 5G era are analyzed and summarized in detail.The research puts forward the bearing pressure that PON network will face in the future and the necessity and urgency of formulating a suitable evolution strategy for future PON network.(3)Combining the development trend of PON technology in the future,according to the PON network problems and service demand forecasting data of two dimensions,an evolutionary strategy is proposed for each OLT,each optical node and each optical cable in urban and rural scenarios.Then the calculation process of the strategy is transformed into EXCEL table with a formula link.Evolution schemes can be automatically generated after inputting status data and business requirement data.Then the evolutionary scheme is drawn on the network status map,and the future evolutionary plan of PON network is obtained.Finally,the detailed calculation process of the evolution strategy is introduced through a project case,and the effect of this strategy is analyzed from three dimensions of network coverage,capacity and security.This evolution strategy solves the disadvantage that all nodes in PON network are single capacity in the past.And not only solves the existing various problems of PON network,but also meets the bearing demand of future business development,which provides important reference value for operators how to complete the smooth evolution of PON network economically and quickly under the broadband speed-up strategy,so as to provide a standard reference template for all operators to formulate long-term planning and construction scheme of PON network.