3GPP-3GPP2 Workshop3GPP-3GPP2 Workshop CIMS-080019 CIMS-080019Puerto Vallarta, MEXICO, 24th – 25th January 2008Puerto Vallarta, MEXICO, 24th – 25th January 2008

Source:Source: MotorolaMotorola

Title:Title: Comparison of 3GPP2 SBBC and 3GPP PCC

Agenda item:Agenda item: 33

Document for:Document for: DISCUSSIONDISCUSSION

Comparison of 3GPP2 SBBC and 3GPP PCC

Lew MiltonLewis.Milton@motorola.com+1 847 632 4393

3GPP2 SBBC Architecture (X.S0013-012-B)Application Function (AF)

(e.g., P-CSCF)

HomePolicy & Charging Rules Function (PCRF)

Charging Rules Function

(CRF)

Policy Decision Point(PDP)

Access Gateway (AGW)

Traffic Plane Function

(TPF)

Policy Enforcement Point

(PEP)

Tx

Ty

Visited PCRF

CRFProxy

PDPProxy

TyHome Network

Visited Network

3GPP PCC Release 7 Architecture (TS 23.203)

GW

Online Charging System (OCS)

CAMELSCP

Gy

Rx

AF

Gz

Gx

Sp

PCEF

OfflineChargingSystem(OFCS)

Policy and ChargingRules Function

(PCRF)

Subscription ProfileRepository

(SPR)

Service Data FlowBased

Credit Control

3GPP Release 8 TS 23.401Non-roaming Architecture

SGi

S12

S3 S1-MME

PCRF

S7

S6a

HSS

Rx+

UE

GERANSGSN

LTE -Uu ”E-UTRAN

MME S11

S1-U Serving

Gateway

S10

UTRAN

S4

PDNGateway

S5 Operator’s IP Services(e.g. IMS, PSS etc.)

3GPP Release 8 TS 23.401 Roaming Architecture

S6a

HSS

S8a

S3

S1-MME

S10

UTRAN

GERAN

SGSN

MME

S11

Serving Gateway

UE

“ LTE - Uu ” E-UTRAN

S12

HPLMN

VPLMN

PCRF

S7 Rx+

SGi Operator’s IP Services

(e.g. IMS, PSS etc.)

PDN Gateway

S1-U

S4

3GPP Release 8 TS 23.402Non-roaming Architecture

SGi

PCRF

S7

HSS

S2b

Wn*

Operator's IP Services

(e.g. IMS, PSS etc.)

Wm*

Wx*

Untrusted Non-3GPP IP

Access Wa*

HPLMN

Non-3GPP Networks

S6c

Rx+

PDN Gateway

ePDG 3GPP AAA Server

S7b

S2a

S7a

Trusted Non-3GPP IP

Access Ta*

S7c

S5

S6a

3GPP Access

Serving Gateway

UE

Wu*

3GPP Release 8 TS 23.402Roaming Architecture

hPCRF

HSS

Trusted Non-3GPP IP

Access

PDN Gateway HPLMN

Wd*

Non-Networks

VPLMN

vPCRF

3GPP AAA Proxy

Ta*

3GPP AAA Server

S2a

S7a

S9

SGi

S7

S6c

Operator's IP Services

(e.g. IMS, PSS etc.)

Rx+ Wx*

Wn*

ePDG

Wa*

Untrusted Non-3GPP IP

Access

Wm*

S2b

S7bS7c

S8a/b

S6a

3GPP Access

Serving Gateway

3GPP/3GPP2 Policy Interfaces

3GPP2 SBBC Rev. B 3GPP PCC Rel. 7 3GPP PCC Rel. 8 (23.401)

3GPP PCC Rel. 8 (23.402)

AF-hPCRF Tx Rx Rx+ Rx+

hPCRF-P-GW N/A N/A S7 S7

hPCRF-S-GW (AGW) Ty Gx N/A S7c

hPCRF-vPCRF Ty N/A N.A S9

vPCRF-SGW (AGW) Ty N/A N/A S7c

vPCRF-non3GPP Access N/A N/A N/A S7a

3GPP2 vs. 3GPP Bearers

• 3GPP2 Bearers (HRPD, UMB) - MMD Rev. B– All bearers are UE initiated– Binding done at the Access Gateway (AGW)– 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

– 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

Recommendations

• 3GPP2 AGW-to-PCRF Ty interface evolves to 3GPP S7a• 3GPP2 PCRF-to-PCRF Ty interface evolves to 3GPP S9• 3GPP2 PCRF-to-AF Tx interface evolves to 3GPP Rx+• S7c and S7a should be closely aligned• 3GPP2 access specific information should be added as a

cdma2000 access specific annex to Rel. 8 TS 23.203