Design And Research On LTE Indoor Distribution System

The competition between mobile communication industry is becoming more and more fierce in the current society, indoor signal quality is the inevitable requirement of various LTE network data business. Therefore, in order to assure the quality of LTE network after constructed, one of the indispensable means is enhancing the covering capacity of indoor distribution system, and it is also meaningful to the research of indoor distribution system.The paper introduces the LTE indoor distribution system in the first, and analysis the design requirements and various performance indicators of LTE indoor distribution system, analyses and discusses with indoor propagation models and field strength prediction, having a guiding sense to the design of indoor distribution system.Secondly, the paper discusses with the indoor wireless signal propagation model and made some tests, finally provide one optimized propagation model base on the K-M indoor propagation model in a new way. Comparing the fitting results with the test results to validate the validity of the optimized propagation model, and apply the new model into the simulation system of LTE indoor distribution system.The thesis devises a simulation system of indoor distribution system with Java, predicting the scheme’s field strength in order to know the signal quality and the coverage level of indoor distribution system. Comparing the simulation results with the test results to prove the validity of the simulation system. In addition, finding the weak points of signal in the area, solving the problem with adjustment and optimization, to make the effect of indoor signal coverage achieve the optimal level. After optimization, the simulation results and the test data show that the software can be applied into real scene, proving the software turned theory into reality, have important meanings to the LTE indoor distribution system.