PFDF

PFDF

Other →
Introduced in Rel-14 Also in: Services

PFDF is the Packet Flow Description Function, which is a 3GPP network function that provides packet flow descriptions for traffic detection and policy enforcement to the Traffic Detection Function.

Category
Other
Introduced
Rel-14
Where
Core Network › 5G Core
Also touches
1 segments
Specifications
18 specs
PFDF Description Purpose Detected Changes Specifications

Description

Packet Flow Description Function

Purpose & Motivation

Detected Changes Across Releases

from 3GPP Change Requests

Specific changes extracted from the „Change history“ tables of 3GPP specifications (2 CRs across 2 releases). Complements the general historical overview above with the evidence-based evolution of this function.

Studied in Rel-14, normative work from Rel-15.

Rel-15 1 change

In Release 15, the standardization of the PFDF (Packet Flow Description Function) included new work to correct parameters on the SCEF-PFDF interface. This involved providing necessary fixes and clarifications to ensure the proper exchange of information between these two network functions. The updates refined the technical definitions and data formats used across this critical interface for service capability exposure.

  • Corrections of parameters on SCEF-PFDF interface TS 23.682CR0308
Rel-18 1 change

In Release 18, the PFDF gained the capability to consume Application Detection analytics from the NWDAF. This enhancement allows the PFDF to utilize network-provided intelligence for more dynamic and informed policy decisions.

  • PFDF consume Application Detection analytics from NWDAF TS 23.503CR0783

Defining Specifications

3GPP specifications that define or reference PFDF, with the latest known release. Sourced from the 3GPP document catalog — see methodology.

SpecificationTitleRelease
TS 23.203 vj20 Policy and charging control architecture Rel-19
TS 23.503 vk00 5G Policy and Charging Control Framework Rel-20
TS 23.682 vj30 3GPP TS 23682: MTC Architecture Enhancements Rel-19
TS 26.512 vj10 5G Media Streaming Protocols & APIs Rel-19
TS 26.804 vj10 5G Media Streaming Extensions Study Rel-19
TS 29.122 vj40 T8 Reference Point for Northbound APIs Rel-19
TS 29.212 vj00 Gx/Gxx/Sd/St Diameter Protocol Rel-19
TS 29.213 vj20 PCC Signalling Flows and QoS Mapping Rel-19
TS 29.250 vj00 Nu Reference Point Stage 3 Specification Rel-19
TS 29.251 vj00 Gw/Gwn Reference Points Stage 3 Specification Rel-19
TS 29.512 vj40 5G Session Management Policy Control Service Rel-19
TS 29.513 vj40 5G PCC Signalling Flows & QoS Mapping Rel-19
TS 29.520 vj40 5G Network Data Analytics Services Stage 3 Rel-19
TS 29.522 vj40 5G NEF Northbound APIs Stage 3 Rel-19
TS 29.551 vj30 5G PFD Management Service Stage 3 Rel-19
TS 29.552 vj40 5G Network Data Analytics Signalling Flows Rel-19
TS 29.890 vg00 CT3 5G System Technical Report Rel-16
TS 32.299 vj00 Diameter Charging Applications for 3GPP Rel-19