ThepresentdocumentspecifiestheproceduresusedbytheprotocolsformobilitymanagementandsessionmanagementbetweenUserEquipment(UE)andMobilityManagementEntity(MME)intheEvolvedPacketSystem(EPS).Theseprotocolsbelongtothenon-accessstratum(NAS).TheEPSMobilityManagement(EMM)protocoldef