Section: 5.2.12.2 Nudr_DataManagement (DM) service 5.2.12.2.1 General
Content: The operations defined for Nudr_DM service use following set of parameters defined in this clause: - Data Set Identifier: uniquely identifies the requested set of data within the UDR (see clause 4.2.5). - Data Subset Identifier: it uniquely identifies the data subset within each Data Set Identifier. As specified in the procedures in clause 4, e.g. subscription data can consist of subsets particularised for specific procedures like mobility, session, etc. - Data Keys defined in Table 5.2.12.2.1-1 For Nudr_DM_Subscribe and Nudr_DM_Notify operations: - The Target of Event Reporting is made up of a Data Key and possibly a Data Sub Key both defined in Table 5.2.12.2.1-1. When a Data Sub Key is defined in the table but not present in the Nudr_DM_Subscribe this means that all values of the Data Sub Key are targeted. - The Data Set Identifier plus (if present) the (set of) Data Subset Identifier(s) corresponds to a (set of) Event ID(s) as defined in clause 4.15.1 An NF Service Consumer may include an indicator when it invokes Nudr_DM Query/Create/Update service operation to subscribe the changes of the data, to avoid a separate Nudr_DM_Subscribe service operation. Depending on the use case, it is possible to use a Data Key and/or one or multiple Data sub keys to further identify the corresponding data, as defined in Table 5.2.12.2.1-1 below. Table 5.2.12.2.1-1: Data keys The content of the UDR storage for (Data Set Id= Application Data, Data Subset Id = AF TrafficInfluence request information) is specified in clause 5.6.7, Table 5.6.7-1 of TS 23.501[ System architecture for the 5G System (5GS) ]  [2]. This information is written by the NEF and read by the PCF(s). PCF(s) may also subscribe to changes onto this information.