Implementation Of 3D Beamfomring System Level Simulation Platform And Research On Interference Coordination Scheme

3D multiple input multiple output technology is currently the focus of research.3D beamforming is the key technology of MIMO,breaking the antenna transmit beam can only be adjusted in the horizontal dimension,increasing the use of the vertical dimension.The antenna beam can be adjusted in three dimensions is a major breakthrough,and the 3D beamforming technology is the research focus of the researchers.This paper studies the beamforming technology from different angles,the research for beamforming scheme,compared to the linear precoding code and nonlinear precoding code algorithm performance;Research on the lack of 3D beamforming scheme proposes an improved scheme to improve the 3D beamforming scheme;This paper analyzes the interference problem in the small and medium range of beam forming,and studies the effect of eliminating the interference on the system performance,and proposes an improved scheme to ensure that within the extended dimensions of space at the same time the user desires to maximize the use of spectrum resources.The main research of this paper includes three aspects:First of all,the paper analyzes the structure of LTE-A system,radio resource management mode and resource scheduling scheme.LTE-A system level simulation platform with 3D beam forming function is designed and implemented,and the operation process of the platform,the function of each module and the realization method are described in detail.This platform provides the guarantee for the verification of the 3D beam shaping scheme proposed in this research.Secondly,the paper analyzes existing 3D beamforming scheme,in the existing dynamic 3D beamforming scheme,there are deficiencies,and then proposed an improved 3D beamforming scheme and simulation verification.Finally,according to the analysis of the inter cell interference in the beam forming scene,the multi cell cooperative 3D beamforming algorithm is obtained,which can completely eliminate the interference between users.To maximize the user's own desired signal and reduce the interference to other users as much as possible,the simulation results show that the improved algorithm can improve the performance of the system.