The performance of the random access plays a crucial role for the service quality of the high speed data communication system in TD-LTE.It’s a problem that is worth studying how to determine the parameter planning so as to improve the random access success rate of the edge region.This article first briefly introduces the basic steps of the competition-mode-based random access process

and specifies the important parameters for the random access resource

then describes the meaning and the planning principles of the parameters.Finally

it specifies the suggestions and situations of the PRACH parameters planning in test network of TD-LTE.