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Common IMS ( Comparison of 3GPP2 SBBC and 3GPP PCC )

Common IMS ( Comparison of 3GPP2 SBBC and 3GPP PCC ). 3GPP/3GPP2 Common IMS Workshop CIMS-080019 24-25 January 2008 Puerto Vallarta, Mexico. Visited PCRF. PDP Proxy. CRF Proxy. Access Gateway (AGW). Traffic Plane Function (TPF). Policy Enforcement Point (PEP).

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Common IMS ( Comparison of 3GPP2 SBBC and 3GPP PCC )

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  1. Common IMS (Comparison of 3GPP2 SBBC and 3GPP PCC) 3GPP/3GPP2 Common IMS Workshop CIMS-080019 24-25 January 2008 Puerto Vallarta, Mexico

  2. Visited PCRF PDP Proxy CRF Proxy Access Gateway (AGW) Traffic Plane Function (TPF) Policy Enforcement Point (PEP) 3GPP2 SBBC Architecture(X.S0013-012-B) Application Function (AF) (e.g., P-CSCF) Tx Home Policy & Charging Rules Function (PCRF) Policy Decision Point (PDP) Charging Rules Function (CRF) Home Network Ty Visited Network Ty

  3. 3GPP PCC Release 7 Architecture(TS 23.203 v8.0.0) Subscription Profile Repository (SPR) AF Rx Policy and Charging Rules Function (PCRF) Sp Online Charging System (OCS) Service Data Flow Based Credit Control CAMEL SCP Gx Gy PCEF GW Gz Offline Charging System (OFCS)

  4. PDN Gateway Serving Gateway 3GPP Release 8 Non-roaming Architecture (TS 23.401 v8.0.0) UTRAN SGSN HSS GERAN S3 S6a S 1 - MME S12 MME PCRF S4 S7 Rx+ S11 S10 ” LTE - Uu S5 SGi Operator’s IP Services (e.g. IMS, PSS etc.) UE E - UTRAN S1 - U

  5. 3GPP Release 8 Roaming Architecture(TS 23.401 v8.0.0 ) HSS PCRF S7 Rx+ S6a Operator’s IP SGi PDN Services Gateway (e.g. IMS, PSS etc.) HPLMN VPLMN S8a UTRAN SGSN GERAN S12 S3 S4 S1 - MME MME S11 S10 “ LTE - Uu ” Serving Gateway UE E - UTRAN S 1 - U

  6. 3GPP Release 8 Non-roaming Architecture(TS 23.402 v8.0.0 ) HSS Wx* S6a PCRF S 7c Rx+ S7 Operator ' s IP SGi Services Serving PDN (e.g. IMS, PSS 3GPP Gateway Gateway etc.) Access S5 S6c S2b S7b Wm* 3GPP AAA ePDG S2a Server Wn* HPLMN S7a Non - 3GPP Networks Wu* Untrusted Trusted Non - 3GPP IP Non - 3GPP IP Access Wa* Access Ta* UE

  7. HSS Wx* Rx+ Operator's IP hPCRF S7 Services S6a (e.g. IMS, PSS SGi PDN etc.) 3GPP AAA Gateway Server HPLMN S6c S 9 S2b Wd* S8a/b vPCRF Serving 3GPP Gateway Access S7c S7b 3GPP AAA Proxy Wm* S2a ePDG VPLMN Non - Wn* Networks S7a Trusted Untrusted Non - 3GPP IP Non - 3GPP IP Access Access Wa* Ta* 3GPP Release 8 Roaming Architecture(TS 23.402 v8.0.0 )

  8. 3GPP2 Flows vs. 3GPP Bearers • 3GPP2 Flows (HRPD, UMB) - MMD Rev. B • All flows are UE initiated for HRPD, and UMB supports both UE and NW initiated flows • Flow binding done at the Access Gateway (AGW) • Tx sessions to Ty session are one-to-many • TFTs sent by UE to AGW; AGW validates QoS via Ty with PCRF • AGW does per flow charging • 3GPP Bearers (GPRS, UMTS) – Rel. 7 • Both UE and NW initiated bearers supported • Binding done at the PCEF for NW initiated bearers • Binding done at the PCRF for UE initiated bearers • Rx sessions to Gx sessions are one-to-one • GGSN sends TFTs to PCRF • 3GPP Bearers (EPS) – Rel. 8 • Both UE initiated and Network initiated bearers supported • TS 23.401 has bearer binding in P-GW (none at S-GW) • P-GW validates TFTs with PCRF via S7 • TS 23.402 has bearer binding in both the S-GW & P-GW • Both S-GW and P-GW validate TFTs with PCRF via S7c/S7 • S-GW does aggregate charging for same QoS bearer, or per flow charging • P-GW does per flow charging

  9. 3GPP/3GPP2 Policy Interface Differences • 3GPP2 MMD SBBC Rev. B Tx vs. 3GPP PCC Rel. 7 Rx • Tx uses the same Application ID as Rx • Tx has optional AVP differences with Rx • 3GPP2 MMD SBBC Rev. B Ty vs. 3GPP PCC Rel. 7 Gx • Ty has several detailed AVP differences • Ty includes policy peering support

  10. Recommendations • 3GPP PCC interfaces S7, S7x and S9 should be access independent • 3GPP S7, S7a and S7c should support the policy, QoS control and charging functionality of 3GPP2 Ty • 3GPP S9 should support the policy peering functionality of 3GPP2 Ty • 3GPP Rx+ should support the functionality of 3GPP2 Tx • 3GPP2 access specific information should be added as cdma2000 access specific Release 8 annex(es). • 3GPP2 will take action to bring CRs into 3GPP SA2 and CT3

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