Avoid Technology Application In The Lte - A Disturbance

Interference Avoidance technology is the main research content of LTE-A, aim atputting forward a method，through the research of the transmission signal processingand scheduling technology in the wireless communication system, to avoid theinterference and improve the system performance, then to enhance the user experience.But so far, there are no clear plans or standards.This thesis is mainly on the research of interference avoidance. By the way ofestablishing a system level wireless simulation model based on3GPP LTE Release8,we can do the research and obtain the performance evaluation about dynamic beamsteering and cooperation multi-point transmission technology, then complete theimprovement of the algorithm.Our research is focused on the following two issues：(1)We build a system level simulation platform which based on the3GPP LTERelease8, then do the calibration with some famous companies’ simulation results.After building the simulation platform, we obtain the system performance based on thechange of some important parameters, which can achieve the desired goal of theproposal, preparing for the research of interference avoidance.(2)In the course of the study of interference avoidance, first we do the research onthe dynamic beam steering technology. When we make sure that the dynamic beamsteering technology has great influence on the performance of the system, we putforward an improved algorithm to move forward a single step to improve theperformance. But in this part, there is no consideration of coordination among cells.Then we do the research on Coordinated Multi-point transmission mechanismwhich based on the original system foundation. We use precoding algorithm and animproved coordinate scheduling algorithm to improve the system performance.Contents above are the original ARTIST4G WP1’s targets, after completing theirperformance evaluations and analysis, we put forward a new improved method,combining the above two methods together, to further improve system performance and edge experience, and then we can better achieve the research goal of interferenceavoidance.