Research Of LTE Indoor Coverage Solution Based On Lampsite

With the development of Chinese economy,the construction of various infrastructure in the city is increasing.With the increasing number of business hotels,stadiums,commercial office buildings,shopping centers and high-end entertainment clubs in cities,most of the building area is over tens of thousands of square meters,and the building structure of most large-scale stadium is mainly reinforced by concrete structure.The outer wall of the buildings is thicker and most of them are decorated with glass curtain walls.The complex indoor architecture has caused great loss to the transmission of wireless signals,which makes the quality of indoor calls seriously reduced.In the wake of the main needs of users from traditional voice services to the Internet data service with high flow and low delay,the users not only need high service experience for mobile network in outdoor,but also to enjoy more indoors high-speed surfing experience.Indoor distribution system is the most effective way to solve the indoor depth coverage in cities,but with the advent of the 4G commercial application and a variety of intelligent terminals and new media,the main needs of users have been changed from traditional voice services to the Internet data service with high flow and low delay.The needs of users on the terminal experience rate have been no longer meet by the traditional indoor distribution system in certain high traffic scenarios,which brings lots of problems,such as the passive devices with too much connections,recessive faults difficultly Investigating,expandation capacity and reconstruction project with coordinating problems.Therefore,operators urgently need a new indoor coverage solution to replace the old technology of traditional indoor distribution system,and the technical characteristics of Lampsite system are full in line with the current market demand for rapid growth of traffic.This paper firstly studies the organizational structure of LTE network and Lampsite system,and introduces the key technologies and the advantages of the system.Secondly,the design specification and process of the LTE indoor distribution system are given,and the optimization ideas and key directions of the LTE indoor distribution system are put forward.Finally,take an example for the high flow,high density personnel regions such as apartment Longyuan,the LTE indoor coverage solution is proposed based on the Lampsite system.The part of System design firstly makes a power budget for the coverage of the system equipment in the building and estimates the scale of the services according to the number of users in the scene.According to the prediction of the power budget and capacity of the apartment Longyuan,engineering design drawings for Lampsite systems has been designed,and the problems in project construction have been timely optimised.After the end of the project,the performance test and index extraction of the system are carried out.In comparison with the performance indexes of the traditional indoor distribution system,the technical advantages of the Lampsite system are proved,and the results demonstrate the advantages of releasing user potential traffic,reducing operation cost and shortening the duration of the project.Through this paper,the feasibility of the system in practical engineering is verified.