Research On Wireless Network Planning For 5G And LTE Hybrid Networks

With the advent of 5G,the Internet of everything is becoming a reality.5G technology makes up for the shortcomings of LTE technology and further improves system performance in terms of throughput,connections and energy consumption.At present,5G networks only limited to some cities for commercial trial and have not yet been widely deployed.According to the characteristics of 5G networks,5G network planning strategies should be proposed.In addition,when the operators deploy 5G,they will inevitably face the scenario of coexistence between 5G and the existing wireless network system.The coexistence between different network standards will cause some interference and lead to the degradation of system performance.Therefore,the interference and cooperation between 5G and the existing network systems should be fully considered when deploying 5G network.With this as the research background,this thesis studies the hybrid network planning problem between 5G and existing LTE network,and applies it to practical projects to put forward a detailed 5G wireless network planning scheme.Main work includes:First,the thesis introduces the key technologies and network planning process of 5G system.This thesis introduces the key technologies and three application scenarios of 5G wireless network,and summarizes the basic process and method of 5G wireless network planning.Then,from the feasibility analysis,coverage performance,capacity and intersystem interference,the thesis makes a specific study on the hybrid wireless network planning of 5G and LTE.The feasibility of 5G and LTE hybrid network is analyzed from the aspects of technical standards and equipment;Through the link budget method,the coverage radius of 5G base station and LTE base station is calculated;The planning process of 5G capacity was studied and the capacity of 5G single station under standard conditions was calculated;Aiming at the problem of 5G coexistence interference,this thesis analyzes the interference between 5G and existing LTE systems,analyzes the interference types between 5G and LTE systems,and calculates the isolation distance between 5G system and existing systems.Finally,the thesis takes the actual urban wireless network planning project as an example and carries out the wireless network planning for the urban planning area based on the research content.A detailed 5G wireless network planning scheme is proposed,and software simulation is carried out to prove the rationality and effectiveness of the scheme,and the planning scheme is amended.The investment scale of 5G wireless network construction project in urban planning is estimated.The planning scheme proposed in this thesis can make full use of existing resources,determine the location and deployment of 5G sites,promote the smooth evolution of LTE to 5G,and provide reference for the future planning of 5G wireless network.