The Planning And Evaluation On OTN And PTN Of An Operator At 5G Times

In recent years,with the rapid growth of Internet things,mobile Internet,fixed data and other businesses,especially after the concept of 5g in the communication industry is put forward,the battle for 5g strategic commanding point has been surging,and major operators in China have been gradually deployed.Looking at the global 5g technology level,a huge amount of R & D has been invested,and China has made outstanding achievements in this field,and obtained the commanding height of the whole industry in the formulation of key technology standards.However,the arrival of 5g will put forward higher requirements for the traditional communication network,especially the basic transmission network.How to adapt to the changes of the times,grasp the opportunity of the times,what kind of communication technology to be adopted,and finally plan to build an efficient,safe and reliable transmission network is a research focus of 5g.First of all,this paper analyzes the structure of Chinese operators.At present,the metropolitan transmission network of Chinese operators is mainly composed of OTN and PTN.OTN uses optical channels to carry the transmission of user signals,which is also the most important part of the backbone transmission network.It is used to carry the uplink of PON network,SDH network,cmnet network,CDN network and PTN network.PTN adopts packet IP technology to provide reliable and high QoS service access for base stations and important group customers.Then,the paper compares the evolution of Otn and PTN,and the advantages of the two technologies in their respective networks,discusses the overall structure of the transmission network,and briefly describes the future development direction.Taking Tongliao mobile transmission network as an example,this paper analyzes the present situation,problems and improvement direction of Tongliao mobile transmission network,and deduces the demand of metropolitan transmission network engineering construction through the prediction and calculation of service demand Summed up the construction of the network principles and ideas.Secondly,according to the blind spot of convergence in the west of the main urban area and the demand of large capacity and large bandwidth business in the early stage of 5g,this paper puts forward the construction strategy of short-term OTN 100 ge + PTN 100 ge transition to medium and long-term OTN super 100 ge + PTN n n * 100 ge,and expounds the expansion of 7 wave 100 ge channels in the core convergence layer to meet the demand of online traffic;the expansion of the west of the main urban area to add OTM stations to solve the blind spot of regional convergence;the city to county split the ring road according to the flag county,respectively have 100 ge bandwidth OTN and PTN construction scheme.Finally,this paper uses the combination of technology optimization evaluation and economic evaluation to evaluate the proposed construction scheme.It is found that with the further scale deployment of 5g base station and the access of 4K HD video,virtual reality,Internet of vehicles and other services in the future,the existing core,metropolitan area,local OTN and PTN networks in Tongliao City have not been able to meet the rapid development of 5g services,and the coverage and ring capacity of OTN convergence layer need to be improved;the remaining channels of OTN loop in the current network have not been able to meet the needs of customers' business development,so large capacity is selected The construction of OTN is imperative.This construction scheme can not only improve the overall transmission capacity of the network,improve the security of the network,reduce the investment of project construction,but also lay a solid foundation for the high-speed development of subsequent operators.The construction scheme proposed in this paper is based on sufficient basis and conditions,so it is imperative.It is necessary and feasible for the development of mobile communication services in all cities of Inner Mongolia Autonomous Region and the promotion of the economic and information development of the whole autonomous region in the 5g era.