Research and implementation of LTE RRC connection establishment process of network side

Based on the RRC(Radio Resource Control) connection establishment process of network-side described in 3GPP long term evolution(LTE) Release 8 standard, first of all, it designed interface of RRC layer and other layers and states of RRC layer and state transition figure as well as RRC connection establishment flow chart, and analyzed the possible anomalies that may arise. Finally, by use of SDL and TTCN simulation tools, it performed co-emulation of RRC connection establishment process under normal circumstances, and the SDL simulation results showed that the RRC connection establishment plan is consistent with the designed program, and it proved the design is consistent with the standard of TD-LTE RRC connection establishment