For the purposes of the present document, the terms and definitions given in
TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in
TR 21.905.
E2m:
End to middle
Gb architecture:
a system architecture described in
TS 23.060 that uses the protocols defined in e.g. 3GPP TSs 24.008 [12], 48.018 [13], 44.064 [14] and 44.065 [15].
S1 architecture:
a system architecture described in
TS 23.401 that uses the protocols defined in e.g. 3GPP TSs 24.301 [30] and 36.413 [18].
For the purposes of the present document, the following symbols apply:
||
Concatenation
⇔
Communication between
For the purposes of the present document, the abbreviations given in
TR 21.905 and the following apply.
An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in
TR 21.905.
AKA
Authentication and Key Agreement
AMF
Authentication Management Field
AuC
Authentication Centre
cIoT
Cellular Internet of Things
CK
Ciphering Key
CK'
replacement CK for ait interface security to withhold CK from the visited network
CoAP
Constrained Application Protocol
DH
Diffie-Hellman
DLTS
Datagram Transport Layer Security
E-UTRAN
Evolved Universal Terrestrial Radio Access Network
E2E
End to End
EESE
End to End Security Endpoint
EMKS
End to Middle Key Server
EMSE
E2M Security Endpoint
EPS
Evolved Packet System
GBA
Generic Bootstrapping Architecture
GERAN
GSM EDGE Radio Access Network
GGSN
Gateway GPRS Support Node
GTP
GPRS Tunnelling Protocol
HLR
Home Location Registry
HSS
Home Subscriber Server
IK
Integrity Key
IK'
replacement for IK for air interface security to withhold IK from the visited network
IoT
Internet of Things
KDF
Key Derivation Function
LLC
Logical Link Controller
MME
Mobility Management Entity
MTC
Machine Type Communications
P-GW
PDN Gateway
PDN
Packet Data Network
PLMN
Public Land Mobile Network
S-GW
Serving Gateway
SGSN
Serving GPRS Support Node
SQN
Sequence Number
TLS
Transport Layer Security
UE
User Equipment
UMTS
Universal Mobile Telecommunication System
UP
User Plane
USIM
Universal Subscriber Identity Module