Control Algorithm of TD-LTE Random Access Preamble Priority Level

According to the analysis of the random access process,considering that TD-LTE system random access preamble choice and assignment plan,this paper proposes a kind of control algorithm based on the priority level of the random access preamble selectivity.By increasing the preamble based on the priority level,the dedicated users can use this priority level.This algorithm can reduce the system broadcast resources and adapt scenes of different call arrive rate.Simulation result indicates that this algorithm can raise the access success ratio of the different load.