Diameter PCRF Interfaces
Sp interface
Between PCRF and SPR
3GPP
TS 23.203
TS 29.328
TS 29.329
Rx interface
Between AF and the PCRF
3GPP TS 23.203 & TS 29.214
Gx interface
The interface Gx is used between PCEF gateway and the PCRF
3GPP TS 29.212 & TS 23.203
Ty interface
Between AGW and PCRF
3GPP2 TSG-X X.S0013-014
Tx interface
Between AF and PCRF
3GPP2 TSG-X X.S0013-013
S7c interface
Transfer of (QoS) policy information from PCRF to the S-GW.
3GPP TS 32820, TS 23402
S9 interface
Between PCRF in the HPLMN (H‑PCRF) and a PCRF in the VPLMN (V‑PCRF)
3GPP TS 23.203 & TS 29.215
Gxa interface
PCRF and the BBERF
3GPP TS 23.203
Gxb interface
Between ePDG and vPCRF
