Nudm
E523095
Nudm is a 5G core network service-based interface used for communication between the Access and Mobility Management Function (AMF) and the Unified Data Management (UDM) for user and mobility-related data.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Nudm canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5480941 — 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: Nudm Context triple: [Access and Mobility Management Function, supportsInterface, Nudm]
-
A.
5G Core
5G Core is the cloud-native, service-based core network architecture that underpins 5G mobile systems, enabling advanced connectivity, slicing, and low-latency services.
-
B.
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.
-
C.
I‑CSCF
I‑CSCF (Interrogating Call Session Control Function) is a key SIP server in the IP Multimedia Subsystem that handles incoming session setup requests and routes them to the appropriate network entities.
-
D.
S‑CSCF
S‑CSCF (Serving Call Session Control Function) is a core IMS network element that handles session control, registration, and service invocation for subscribers in IP-based multimedia networks.
-
E.
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.
- 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: Nudm Target entity description: Nudm is a 5G core network service-based interface used for communication between the Access and Mobility Management Function (AMF) and the Unified Data Management (UDM) for user and mobility-related data.
-
A.
5G Core
5G Core is the cloud-native, service-based core network architecture that underpins 5G mobile systems, enabling advanced connectivity, slicing, and low-latency services.
-
B.
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.
-
C.
I‑CSCF
I‑CSCF (Interrogating Call Session Control Function) is a key SIP server in the IP Multimedia Subsystem that handles incoming session setup requests and routes them to the appropriate network entities.
-
D.
S‑CSCF
S‑CSCF (Serving Call Session Control Function) is a core IMS network element that handles session control, registration, and service invocation for subscribers in IP-based multimedia networks.
-
E.
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.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
3GPP 5G system reference point
ⓘ
5G core network service-based interface ⓘ |
| abbreviationOf | N UDM service-based interface ⓘ |
| belongsToArchitectureModel | Service-Based Architecture (SBA) ⓘ |
| carriesInformationType |
Authentication data
ⓘ
Mobility management data ⓘ Policy-related subscription data ⓘ Subscriber data ⓘ |
| communicationBetween |
Access and Mobility Management Function
ⓘ
Unified Data Management ⓘ |
| definedInStandard |
3GPP TS 23.501
ⓘ
3GPP TS 29.503 ⓘ |
| domain | Mobile telecommunications ⓘ |
| generation | 5G ⓘ |
| introducedWith | 5G core network specifications ⓘ |
| operatesAtPlane | Control plane ⓘ |
| partOf |
5G Core Network (5GC)
ⓘ
linked to:
5G Core
5G System (5GS) ⓘ
linked to:
5G System
|
| protocolStyle | RESTful HTTP-based APIs ⓘ |
| providesAccessTo | UDM user data ⓘ |
| relatedToInterface |
Nausf
ⓘ
Nudr ⓘ |
| roleInArchitecture | User and mobility data exposure between AMF and UDM ⓘ |
| securityMechanism |
OAuth2-based authorization (as profiled by 3GPP)
ⓘ
TLS ⓘ |
| sourceNetworkFunction | AMF ⓘ |
| supportsNetworkSliceAwareness | true ⓘ |
| supportsOperation |
nudm_EE
ⓘ
nudm_PP ⓘ nudm_SDM ⓘ nudm_UEAU ⓘ nudm_UECM ⓘ nudm_UEID ⓘ |
| supportsProcedure |
Access and mobility subscription data retrieval
ⓘ
Mobility management related data handling ⓘ Registration management support ⓘ Subscription data management ⓘ UE authentication data management ⓘ UE context management ⓘ UE reachability and paging related data handling ⓘ |
| supportsRoamingScenarios | true ⓘ |
| targetNetworkFunction | UDM ⓘ |
| usedByNetworkFunction | AMF ⓘ |
| usesEncoding | JSON ⓘ |
| usesServiceBasedArchitecture | true ⓘ |
| usesTransport | HTTP/2 ⓘ |
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: Nudm Description of subject: Nudm is a 5G core network service-based interface used for communication between the Access and Mobility Management Function (AMF) and the Unified Data Management (UDM) for user and mobility-related data.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.