6.2.13 Packet Flow Description Function (PFDF)

23.2033GPPPolicy and charging control architectureRelease 17TS

A Packet Flow Description Function (PFDF) is an element which stores PFDs associated with an application identifier and transfers them to the PCEF/TDF via Gw/Gwn interface to enable the PCEF/TDF to perform application detection when the PFDs are managed by a 3rd party SP.

The PFDF receives PFDs for an application identifier from the SCEF as defined in TS 23.682 [42].