Technology Discussion Of TD-LTE SAE

In recent years, with the rapid development of mobile communication dataservice, people’s requirements for mobile data service speed is more and more high,the existing network has been difficult to meet the growing needs of people． Thetraditional3GPP network core network packet domain network service supportcapability is weak, the network level more, data forwarding efficiency low, andChina Mobile TD-SCDMA poor performance, in the3G competition in absolutedisadvantage, so the evolution of LTE radical with China Mobile across thejunction line．TD-LTE core network architecture comprehensive grouping, flat networkstructure, support multiple access technology and other characteristics, caneffectively shorten the delay, improve the efficiency and performance of thenetwork．In this thesis, the TD-LTE core network is described, including the networkelement such as MME, SGW, PGW, PCR, HSS and other basic functions, networkinterface and protocol．The key technology of TD-LTE core network is alsodiscussed, including identity management, node selection, mobility management,handoff management; introduce TD-LTE signaling processes, including mobilitymanagement signaling process and session management signaling flow; at the sametime, the expansion of the Guangzhou TD-LTE project construction scale test corenetwork, TD-LTE core network of ZTE MME test is implimented．...