Оцінювання параметрів синхронізації низхідного потоку в мобільних мережах LTE

Abstract

In this master's qualification thesis it is devoted to problems of descending flow synchronization of the LTE mobile network. In work the carried-out analysis of the main features of the LTE standard, the considered algorithms of clock, symbolical and frequency synchronization in a descending channel of LTE network taking into account mobility of the receiving party and distortions which are brought due to multibeam distribution of radio waves. Shift estimates on time of a synchronization signal and assessment of heterodynes frequency inconsistency for mobile networks of the LTE standard radio communication are calculated. The developed simulation model of the physical control layer of the LTE standard, the provided block diagrams with the description of assignment of blocks and opportunities of model. By means of numerical modeling in a package for engineering and applied problems of MATLAB/Simulink, it is carried out comparisons of the received dependences of root mean square deviations of an shift estimation error on time of a synchronization signal and assessment of a mismatch of heterodynes frequency for the considered algorithms. Certain best option.