Mobility Management Entity

E522258

3GPP network function LTE core network element

The Mobility Management Entity is a core LTE network component responsible for user mobility, session management, and signaling control between user devices and the network.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (3)

Label	Occurrences
Mobility Management Entity canonical	6
MME	2
S1-MME	1

How this entity was disambiguated

This entity first appeared as the object of triple T5479906 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Mobility Management Entity
Context triple: [3GPP Release 8, introduced, Mobility Management Entity]

A. Access and Mobility Management Function
The Access and Mobility Management Function (AMF) is a key 5G core network control-plane function responsible for user equipment registration, connection and mobility management, and access authentication.
B. Evolved Packet Core
Evolved Packet Core is the 4G LTE mobile network architecture responsible for managing data connectivity, mobility, and services between user devices and external IP networks.
C. E-UTRAN
E-UTRAN is the LTE mobile network’s air-interface subsystem that connects user devices to the core network via evolved base stations (eNodeBs).
D. GSM core network
The GSM core network is the central backbone of GSM mobile systems, handling key functions such as switching, mobility management, authentication, and interconnection with other networks.
E. P‑CSCF
P‑CSCF (Proxy Call Session Control Function) is the first contact point for user equipment in an IP Multimedia Subsystem (IMS) network, handling signaling, security, and routing of SIP messages.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Mobility Management Entity
Target entity description: The Mobility Management Entity is a core LTE network component responsible for user mobility, session management, and signaling control between user devices and the network.

A. Access and Mobility Management Function
The Access and Mobility Management Function (AMF) is a key 5G core network control-plane function responsible for user equipment registration, connection and mobility management, and access authentication.
B. Evolved Packet Core
Evolved Packet Core is the 4G LTE mobile network architecture responsible for managing data connectivity, mobility, and services between user devices and external IP networks.
C. E-UTRAN
E-UTRAN is the LTE mobile network’s air-interface subsystem that connects user devices to the core network via evolved base stations (eNodeBs).
D. GSM core network
The GSM core network is the central backbone of GSM mobile systems, handling key functions such as switching, mobility management, authentication, and interconnection with other networks.
E. P‑CSCF
P‑CSCF (Proxy Call Session Control Function) is the first contact point for user equipment in an IP Multimedia Subsystem (IMS) network, handling signaling, security, and routing of SIP messages.
F. None of above. chosen

Statements (67)

Predicate	Object
instanceOf	3GPP network function ⓘ LTE core network element ⓘ
abbreviation	MME NERFINISHED ⓘ
allocates	GUTI NERFINISHED ⓘ MME UE S1AP ID ⓘ temporary identities ⓘ
communicatesWith	HSS ⓘ Home Subscriber Server NERFINISHED ⓘ PCRF NERFINISHED ⓘ PGW NERFINISHED ⓘ Packet Data Network Gateway NERFINISHED ⓘ Policy and Charging Rules Function NERFINISHED ⓘ SGW NERFINISHED ⓘ Serving Gateway NERFINISHED ⓘ eNodeB NERFINISHED ⓘ
controlsPlane	control plane ⓘ
definedInStandard	3GPP TS 23.401 NERFINISHED ⓘ 3GPP TS 36.300 NERFINISHED ⓘ
doesNotHandle	user plane traffic ⓘ
hasFunction	EPS bearer establishment ⓘ EPS bearer modification ⓘ EPS bearer release ⓘ NAS security setup ⓘ attach procedure handling ⓘ ciphering control ⓘ detach procedure handling ⓘ handover control ⓘ integrity protection control ⓘ lawful interception support ⓘ tracking area update handling ⓘ
hasRole	EPS bearer management ⓘ NAS signaling termination ⓘ authentication and security control ⓘ control plane signaling ⓘ idle mode mobility handling ⓘ mobility management ⓘ paging coordination ⓘ roaming management ⓘ session management ⓘ
layer	control plane of EPC ⓘ
manages	MM and EPS session states ⓘ UE context ⓘ tracking areas ⓘ
partOf	EPC NERFINISHED ⓘ Evolved Packet Core NERFINISHED ⓘ
performs	inter-MME mobility procedures ⓘ inter-RAT mobility procedures ⓘ intra-MME mobility procedures ⓘ location management ⓘ
replacedBy	AMF in 5G Core ⓘ Access and Mobility Management Function in 5G NERFINISHED ⓘ
responsibleFor	MME selection for UE ⓘ UE reachability in idle state ⓘ overload control ⓘ
securityDomain	Evolved Packet System ⓘ
supports	CS fallback procedures ⓘ SMS over SGs ⓘ
usedInTechnology	E-UTRAN NERFINISHED ⓘ LTE NERFINISHED ⓘ LTE-Advanced NERFINISHED ⓘ
usesInterface	Gx via SGW or PGW ⓘ S1-MME NERFINISHED ⓘ S10 ⓘ S11 ⓘ S13 ⓘ S3 ⓘ S6a ⓘ

How these facts were elicited

Referenced by (9)

Full triples — surface form annotated when it differs from this entity's canonical label.

3GPP Release 8 → introduced → Mobility Management Entity ⓘ

CSFB (Circuit Switched Fallback) → usesNetworkElement → Mobility Management Entity ⓘ

this entity surface form: MME

Serving Gateway → connectsTo → Mobility Management Entity ⓘ

Serving Gateway → relatedTo → Mobility Management Entity ⓘ

Access and Mobility Management Function → successorOf → Mobility Management Entity ⓘ

Evolved Packet Core → includesComponent → Mobility Management Entity ⓘ

Evolved Packet Core → controlPlaneEntity → Mobility Management Entity ⓘ

Evolved Packet Core → usesInterface → Mobility Management Entity ⓘ

this entity surface form: S1-MME

3GPP TS 29-series → definesInterfaceFor → Mobility Management Entity ⓘ