Foreword1 Scope2 References3 Definitions and abbreviations4 Overview5 Services offered by the UDM5.1 Introduction5.2 Nudm_SubscriberDataManagement Service5.2.1 Service Description5.2.2 Service Operations5.3 Nudm_UEContextManagement Service5.3.1 Service Description5.3.2 Service Operations5.4 Nudm_UEAuthentication Service5.5 Nudm_EventExposure Service5.6 Nudm_ParameterProvision Service5.7 Nudm_NIDDAuthorization Service5.8 Nudm_MT Service5.9 Nudm_ServiceSpecificAuthorization Service6 API Definitions6.1 Nudm_SubscriberDataManagement Service API6.1.1 API URI6.1.2 Usage of HTTP6.1.3 Resources6.1.4 Custom Operations without associated resources6.1.5 Notifications6.1.6 Data Model6.1.7 Error Handling6.1.8 Feature Negotiation6.1.9 Security6.2 Nudm_UEContextManagement Service API6.3 Nudm_UEAuthentication Service API6.4 Nudm_EventExposure Service API6.5 Nudm_ParameterProvision Service API6.6 Nudm_NIDDAuthorization Service API6.7 Nudm_MT Service API6.8 Nudm_ServiceSpecificAuthorization Service APIA.1 GeneralA.2 Nudm_SDM APIA.3 Nudm_UECM APIA.4 Nudm_UEAU APIA.5 Nudm_EE APIA.6 Nudm_PP APIA.7 Nudm_NIDDAU APIA.8 Nudm_MT APIA.9 Nudm_SSAU API 5.2.1 Service Description 29.5033GPP5G SystemRelease 17Stage 3TSUnified Data Management Services Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM See 3GPP TS 23.501 [2] table 7.2.5-1.