3GPP 23.501 v20.2.0 — the document's own text
7.2.5 UDM Services
Taught in 5. Services instead of interfaces (The 5G system architecture, in depth).
The following NF services are specified for UDM:
Table 7.2.5-1: NF Services provided by UDM
| Service Name | Description | Reference in TS 23.502 [3] or indicated other TS |
|---|---|---|
| Nudm_UECM | 1. Provide the NF consumer of the information related to UE's transaction information, e.g. UE's serving NF identifier, UE status, etc.2. Allow the NF consumer to register and deregister its information for the serving UE in the UDM.3. Allow the NF consumer to update some UE context information in the UDM. | 5.2.3.2 |
| Nudm_SDM | 1. Allow NF consumer to retrieve user subscription data when necessary.2. Provide updated user subscriber data to the subscribed NF consumer. | 5.2.3.3 |
| Nudm_UEAuthentication | 1. Provide updated authentication related subscriber data to the subscribed NF consumer.2. For AKA based authentication, this operation can be also used to recover from security context synchronization failure situations.3. Used for being informed about the result of an authentication procedure with a UE. | 5.2.3.4 |
| Nudm_EventExposure | 1. Allow NF consumer to subscribe to receive an event.2. Provide monitoring indication of the event to the subscribed NF consumer. | 5.2.3.5 |
| Nudm_ParameterProvision | 1. To provision information which can be used for the UE in 5GS. | 5.2.3.6 |
| Nudm_NIDDAuthorisation | 1. To authorise an NIDD configuration request for the received External Group Identifier or GPSI. | 5.2.3.7 |
| Nudm_ ServiceSpecificAuthorisation | 1. To authorise for a specific service configuration. | 5.2.3.8 |
| Nudm_ReportSMDeliveryStatus | 1. To report the SM-Delivery Status to UDM. | 5.2.3.9 |
| Nudm_MT | 1. UE state and domain selection info for terminating services. | TS 23.632 [102] |
| Nudm_UEIdentifier | 1. De-conceal the SUCI of a (Remote) UE to its SUPI | Clause 7.4.3 of TS 33.503 [194] |