5、heparticularityofmobilecommunicationchannel,messagesaretransferredthroughwirelesschannel.ItCanbeattackedmorethanothernetworks.SosecurityisakeyfactormustbeconsiderationwhenmakingthenextgenerationmobilecommunicationstandardLTE/SAE.ThispaperintroducestheLTE networkarchitecture of