name: NRF
full_form: Network Repository Function
context: The CHF selection by the SMF is done at the PDU session establishment, this selection shall be based on the following and with this priority order (highest to lowest): - CHF address(es) with possible associated CHF instance ID(s) and/or CHF set ID(s) provided by the PCF for the PDU session. - UDM provided charging characteristics. - NRF based discovery. - SMF locally provisioned charging characteristics. This means that if there are PCF provided CHF address(es) with possible associated CHF instance ID(s) and/or CHF set ID(s) these shall be used, otherwise if the UDM provides charging characteristics these shall be used. If neither of these results in CHF address(es) the NRF can be used to discover CHF instance(s) possibly within a CHF set, and as a last resource the SMF locally provisioned charging characteristics shall be used. When NRF is used for the CHF selection, and the PDU session charging method indicates "offline only" for the PDU session, CHF instance(s) supporting CHF
description: The Network Repository Function (NRF) enables the discovery of other network functions, like the Charging Function (CHF). It provides details about their capabilities and instances. This is crucial for the Session Management Function (SMF) to select the appropriate CHF during PDU session setup.
explanation: NRF is categorized as a Network Function because it directly interacts with and manages other network functions, facilitating communication and service orchestration within the network.
section_title: 5.1.8CHF selection
biotag_Context: O,B-Network Function,O,O,O,B-Network Function,O,O,O,O,B-Connection,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,B-Network Function,O,O,O,B-Network Function,O,O,O,O,O,B-Network Function,O,O,B-Connection,O,O,B-Network Function,O,O,O,O,B-Network Function,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,B-Network Function,O,O,O,O,B-Network Function,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,B-Network Function,O,O,O,O,O,B-Network Function,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,B-Network Function,O,O,O,B-Connection,O,O,O,O,O,O,O,O,B-Connection,O,B-Network Function,O,O,B-Network Function
biotag_Description: O,B-Network Function,I-Network Function,I-Network Function,O,O,O,O,O,O,O,O,O,O,B-Network Function,I-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,I-Network Function,I-Network Function,O,O,O,O,O,B-Network Function,O,B-Connection,O,O