Research On Design And Morphological Evolution Of Mobile Base Station

Mobile base station is the basic physical and logical unit of wireless communication network,and it is the infrastructure of the whole mobile communication service.After several years of the development of mobile communication technology and the rapid progress of network construction,three telecommunications enterprises have used macro station from to build a wide range of mobile networks.In the country's dense urban,minimum macro station spacing has reached the limit of 250-300 meters,and due to the complexity of wireless communication environment and the diversity of demand scenarios,There are still many weak coverage areas and insufficient regions in the network.And the rise of the connect demand of various things and the explosive growth of wireless data needs make these problems become more and more prominent.In order to solve these problems better and adapt to the different scene of communication service,the construction of base station is changing from the traditional "high,big and far" to "low,small and close"?The form and design of base station have undergone great development and change.In the critical period of the booming of 5G trial commercial and narrowband cellular networking,it is of great significance to study and summarize the characteristics and rules of mobile base station design and base station morphological change,which is very important to help solve different scene coverage problems,to guide the construction of diversified base stations,and to think about the possibility of base station form of 5G.From the point of view of Mobile base station design,the thesis based on the morphological evolution of base station,this thesis discusses the composition of base station and the definition of Base station form,and puts forward a practical base station morphological evaluation method including the concept of "base station Volumetric rate",and generally summarizes the characteristics and influencing factors of base station morphological evolution.Starting from the 2nd Chapter,the thesis analyzes the evolution characteristics of base station form from two aspects of the station room form and the antenna form.In the form of the station room,the thesis studies the traditional construction and renting station room form,small room and no-room form,with base station construction deployment advantage of remote type and outdoor integrated cabinet base station form and layout design characteristics,and discusses the SDR and dual-mode BBU form characteristics,summed up base station form constantly improve base station Volumetric rate of evolution law.In the aspect of antenna form,this thesis studies the integration and combiner of the antenna form,the optical route,the miniaturization,the intelligent,and automation of the antenna form,and the camouflaged anetenna form,and emphatically expounds the morphological features and the applicable scenes of the active antenna form.In the following chapters,the thesis further discuss the morphological differences of base station at different power levels,test and verify the morphological advantages and design characteristics of the micro station form under two scenarios of road square coverage scene and deme coverage scene,and further analyze the Pico and Femto base station morphological features.In the following chapters,the thesis investigates various design examples of base stations form in engineering construction,and gives the suggestion of the adapting of diversity of Base station,which provides a detailed scheme and evaluation for the choice of base station in different scenes.On this basis,the thesis makes a theoretical improvement on the evolution of the physical form of base station.This thesis analyzes and sums up the evolution process of the "sharing" and "intensification" of base station form from the logical point of view,and studies the evolution law of the base station logic form from superposition to plane,from independence to sharing,focusing on the share trend of the China tower company establishment.This thesis analyzes the foundation and foreground of the depth sharing form of base station and the separation of network industry,forecasts the continuous evolution of base station form,and predicts two kinds of personal base station forms in the future.