Abstract: It is provided a method, comprising monitoring if a discovery request is received by a network resource function, wherein the discovery request comprises at least one of a type identifier of a type of an application function and a range indication of a range of one or more subscription identifiers; identifying, if the discovery request is received, an identity of a network exposure function based on the at least one of the type identifier and the range indication, wherein a registration of the network exposure function at the network resource function comprises the at least one of the type identifier and the range indication; providing the identity of the network exposure function in response to the discovery request.

Abstract: An apparatus for use by a management network element or management network function of a communication network, the apparatus comprising at least one processing circuitry, and at least one memory for storing instructions to be executed by the processing circuitry, wherein the at least one memory and the instructions are configured to, with the at least one processing circuitry, cause the apparatus at least: to provide, with a request for data, query information as a part of a data retrieving process to read subscription data from a data repository element or data repository function, the query information being set for filtering sub-resources of subscription information within subscription data and for requesting a return of data according to the request in a single response, and to receive the requested data with the single response.

Abstract: It is provided a method, comprising monitoring if a discovery request is received by a network resource function, wherein the discovery request comprises at least one of a type identifier of a type of an application function and a range indication of a range of one or more subscription identifiers; identifying, if the discovery request is received, an identity of a network exposure function based on the at least one of the type identifier and the range indication, wherein a registration of the network exposure function at the network resource function comprises the at least one of the type identifier and the range indication; providing the identity of the network exposure function in response to the discovery request.