Deployment And Optimization Design Of 5G Network Based On SDN Architecture

In recent years,China has continuously broken through difficulties and problems in communication technology,especially in the field of 5G.However,in the research and application deployment of 5G architecture,there are still problems such as deployment difficulties,shortage of spectrum resources and increased interference factors;More importantly,in the past,a single network architecture could not cope with the system fluctuation caused by large-scale data traffic access.Therefore,it is urgent to design a multi-domain 5G network architecture to solve the load imbalance problem of 5G network system.In this paper,a Software Defined Networking(Software Defined Networking,SDN)with decoupling architecture is selected as the overall architecture design and research direction of 5G network,and a new 5G System Evolution Architecture(System Evolution Architecture,SEA architecture)is proposed.By introducing SEA load balancing strategy into the system,load balancing is realized,and the key performance indicators of 5G network are finally improved by combining with corresponding optimization methods.This paper studies from the above aspects and puts forward the following three points.First of all,starting from the technical principle of 5G network,this paper mainly introduces the network architecture principle,bearing principle,interface and protocol stack principle,etc.In the working principle of SDN architecture,it focuses on "three-tier model","two interfaces" and "workflow",which provides certain theoretical support for the next research;Secondly,the deployment scheme of 5G network is put forward,including the spectrum construction of 2.6G+ shared 700 M hybrid network,and the network test of 2.6G spectrum re-cultivation and shared700 M is studied;The construction scheme of macro,pole and room stereo station,the construction scheme of AAU,BBU,5G Massive MIMO effective adaptive antenna and other base station equipment,and the planning scheme of 5G transmission basic resources are put forward.Finally,this paper designs a new service scheduling allocation model.By using SDN controller to load balance the service,the weight value is adjusted according to the load situation of each controller and control node in the domain,and the new path is calculated and designed by using weighted operation,so as to reduce the load fluctuation of the system and achieve balance.In SEA distributed load balancing calculation,through the related parameter allocation,node weight calculation,bearing path calculation,simulation model establishment and research,etc.,it is concluded that after SEA intervention,the system can actively divide and disperse the load to each node,and the load balancing degree is gradually close to zero,thus realizing the balanced adjustment of system load fluctuation.At the same time,combined with the key performance test and optimization methods of 5G network,the optimization parameters of 5G network have been significantly improved,which verifies the feasibility of this strategy.