The Process of Connection Reestablishment RRC Sub-Layer Design and Implementation in LTE Terminal

This paper introduces an overview on services and functions and the process of connection reestablishment provided by the RRC sublayer in the E-UTRAN of the LTE system. Then describe the process of connection reestablishment in detail. It also provides the specific designed flow chat to explain more exactly.In the design process,it simplifies signaling interaction between layers and the corresponding process is optimized and improved combined with the specific characteristics of major projects and the failure of connection reestablishment is analyzed in brief. Finally, the GFT chart was generated to verify the correctness of TTCN co-simulation.