The Design And Implementation Of A New Cell Subsystem Based On LTE

With the development of national economy,a large number of office buildings,stadiums,shopping malls,hotels and other large buildings have been built all over the country.At the same time,with the universal coverage of 4G-LTE,the data broadband of wireless data service of mobile communication has been upgraded to more than 100 megabits compared with the broadband level of fixed network.The exponential growth of indoor wireless mobile communication services in densely populated buildings has led domestic and foreign operators to build a large number of indoor distribution system coverage.In the early stage of construction,the traditional indoor distribution system was mainly used for mobile signal coverage.The traditional indoor distribution system usually adopts the form of micro-honeycomb and straight-out station,but the system has poor coverage ability,difficult construction and difficult operation and maintenance.Network performance is low,capacity is not easy to increase,can not support new business and a series of inherent shortcomings,increasingly unable to meet the LTE service.In view of the above problems,this paper makes a detailed analysis and comparison of the traditional and new chamber systems,and gives a systematic coverage solution of the new chamber systems based on 4G-LTE.Specifically,on the basis of reading a lot of literature,this paper takes the actual project implementation as a case,systematically discusses the whole process solution of the new chamber from theory to investigation and planning to implementation and optimization,and finally forms the whole process solution.The thesis mainly has the following characteristics:In the first part,the traditional chamber system of 4G-LTE is studied and analyzed,including the category of traditional chamber,the characteristics of each distributed device used,and the analysis of the inherent shortcomings of traditional chamber,etc.The second part summarizes and analyzes the advantages of the new cell,the characteristics of the equipment used,the main technical principles of the new cell,the propagation model,the interference analysis,the integrated antenna technology,MIMO technology and so on,and carries on the analysis of the key points of engineering design planning.The third part,a central office building test survey,according to the test results combined with the characteristics of the new room sub-system proposed network coverage solution,the formation of the design scheme distribution pattern,through the drawings of the construction.In the fourth part,data analysis is carried out based on the design scheme of the center to form the command for opening the site and implement the scheme for opening the site.In the fifth part,the optimization test scheme of the new 4G-LTE room sub-system is analyzed by taking the optimization test of a central office building as an example.Several faults of the new type chamber partition are analyzed in detail and the solutions are put forward.In this paper,a new type of LTE mobile communication room subsystem is systematically studied by combining theoretical research with practical stations.In this paper,the inherent defects of the traditional ventricular subsystem and the new ventricular subsystem were compared.The new room subsystem has targeted solutions.Finally,the theoretical knowledge is combined with the implementation of the new LTE chamber subsystem of the actual building to discuss the LTE chamber subsystem.The new branch system of the research project is now in operation,and the project has been accepted and concluded.