ePDG
E123461
ePDG (Evolved Packet Data Gateway) is a core network element in LTE/4G that securely connects users over untrusted non-3GPP access networks, such as public Wi‑Fi, to the mobile operator’s EPC.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Evolved Packet Data Gateway | 1 |
| ePDG canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1077461 — 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: ePDG Context triple: [EPC, includesComponent, ePDG]
-
A.
EPC
EPC (Evolved Packet Core) is the all-IP mobile core network architecture defined by 3GPP for 4G LTE systems, enabling high-speed data, voice, and multimedia services.
-
B.
GPON
GPON (Gigabit Passive Optical Network) is a high-speed fiber-optic access technology that delivers broadband internet, voice, and video services over a shared passive optical infrastructure.
-
C.
e-Pedal (second generation)
The second-generation e-Pedal is Nissan Leaf’s enhanced one-pedal driving system that lets drivers accelerate, decelerate, and bring the car to a complete stop using only the accelerator pedal for smoother, more intuitive control.
-
D.
DPD
DPD is the commonly used abbreviation for the "Diccionario panhispánico de dudas," a comprehensive reference work by the Royal Spanish Academy that clarifies usage, grammar, and style questions across the Spanish-speaking world.
-
E.
DPD
DPD is the commonly used abbreviation for Indonesia’s Regional Representative Council, the upper house of its national legislature.
- 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: ePDG Target entity description: ePDG (Evolved Packet Data Gateway) is a core network element in LTE/4G that securely connects users over untrusted non-3GPP access networks, such as public Wi‑Fi, to the mobile operator’s EPC.
-
A.
EPC
EPC (Evolved Packet Core) is the all-IP mobile core network architecture defined by 3GPP for 4G LTE systems, enabling high-speed data, voice, and multimedia services.
-
B.
GPON
GPON (Gigabit Passive Optical Network) is a high-speed fiber-optic access technology that delivers broadband internet, voice, and video services over a shared passive optical infrastructure.
-
C.
e-Pedal (second generation)
The second-generation e-Pedal is Nissan Leaf’s enhanced one-pedal driving system that lets drivers accelerate, decelerate, and bring the car to a complete stop using only the accelerator pedal for smoother, more intuitive control.
-
D.
DPD
DPD is the commonly used abbreviation for Indonesia’s Regional Representative Council, the upper house of its national legislature.
-
E.
DPD
DPD is the commonly used abbreviation for the "Diccionario panhispánico de dudas," a comprehensive reference work by the Royal Spanish Academy that clarifies usage, grammar, and style questions across the Spanish-speaking world.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
4G network element
ⓘ
EPC gateway ⓘ Evolved Packet Data Gateway ⓘ LTE network element ⓘ core network element ⓘ |
| authenticates |
subscriber via AAA server
ⓘ
user equipment over untrusted access ⓘ |
| connectsTo |
AAA server
ⓘ
EPC ⓘ MME ⓘ PCRF ⓘ PGW ⓘ |
| connectsUsersFrom | untrusted Wi‑Fi networks ⓘ |
| connectsUsersTo | mobile operator core network ⓘ |
| definedInStandard | 3GPP ⓘ |
| fullName |
ePDG
self-linksurface differs
ⓘ
surface form:
Evolved Packet Data Gateway
|
| handles |
control plane signaling for non-3GPP access
ⓘ
user plane traffic from untrusted Wi‑Fi ⓘ |
| interface |
S2b
ⓘ
STa ⓘ SWm ⓘ SWu ⓘ |
| interfaceWith |
AAA server over STa interface
ⓘ
PGW over S2b interface ⓘ UE over SWu interface ⓘ Wi‑Fi access network over SWm interface ⓘ |
| partOf |
EPC
ⓘ
Evolved Packet Core ⓘ |
| primaryFunction |
interworking between non-3GPP access and EPC
ⓘ
secure connectivity over untrusted non-3GPP access ⓘ termination of secure tunnels from user equipment ⓘ |
| provides |
encryption for user traffic over Wi‑Fi
ⓘ
mobility continuity between Wi‑Fi and LTE ⓘ secure data tunneling ⓘ |
| roleInMobility | supports handover between 3GPP and non-3GPP access ⓘ |
| roleInSecurity |
enforces access control for non-3GPP access
ⓘ
protects EPC from untrusted access networks ⓘ |
| supportsAccessType |
Wi‑Fi offload
ⓘ
non-3GPP access ⓘ untrusted non-3GPP access ⓘ |
| supportsService |
VoWiFi
ⓘ
Wi‑Fi Calling ⓘ seamless handover between LTE and Wi‑Fi ⓘ |
| supportsTechnology |
4G
ⓘ
LTE ⓘ |
| terminates | IPsec tunnel from UE ⓘ |
| usedBy | mobile network operators ⓘ |
| usesProtocol |
Diameter
ⓘ
IKEv2 ⓘ IPsec ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: ePDG Description of subject: ePDG (Evolved Packet Data Gateway) is a core network element in LTE/4G that securely connects users over untrusted non-3GPP access networks, such as public Wi‑Fi, to the mobile operator’s EPC.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.