K.1 General

29.2133GPPPolicy and charging control signalling flows and Quality of Service (QoS) parameter mappingRelease 17TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

IETF RFC 8583 [60] specifies the Diameter load control mechanism. This includes the definition of Diameter Load AVP and the Diameter load related behaviour.

Whether Diameter load control mechanism is applicable for a specific interface is specified in the 3GPP specification for that interface. For PCC related interfaces where the Diameter load control mechanism is applicable, the procedures in this Annex apply.

Support for Diameter load control is optional for all PCC functional elements.

NOTE: The Diameter Load AVP will simply be ignored by peers not supporting Diameter load control.

If a PCC functional element supports the Diameter load control mechanism, it shall apply the procedures in the present Annex.

The PCC functional elements that are recipients of realm-routed requests (e.g. PCRF, H-PCRF, TDF for solicited application reporting, TSSF, OCS) shall for that interface act as Endpoint Reporting Node as defined in IETF RFC 8583 [60].

The PCC functional elements that send realm-routed requests (e.g. PCRF, V-PCRF, PCEF, AF) shall for that interface act as Reacting Node as defined in IETF RFC 8583 [60].