cdma2000 FemtoStandardization Activities

in 3GPP2

Presenter: Douglas Knisely

Airvana, Inc.

Femtocell World Congress

23-25 June 2009

Heathrow, UK

2

Background

• 3GPP2 began work on femtocell-related standardization in early 2007

• TSG-S sponsored a femtocell workshop in October 2007 in Boston

• Technical activities were initiated in all 3GPP2 TSGs in late 2007– System requirements– Security aspects– Air interface (radio) enhancements– Support for legacy 1x circuit services– Packet data services for 1x and HRPD (EV-DO)

• Extensive work has been done in all areas• Publication expected by Q1 2010

3

Drivers for Femtocell Work in 3GPP2

• Extremely high level of interest in femtocell technologies from cdma2000® system operators

• Femtocells for 1x services already deployed by two major system operators

• Evolution to SIP/IMS-based architecture considered essential

• Femto Forum has a strong Market Representation Partnership (MRP) relationship with 3GPP2

• Maximum re-use of existing 3GPP2 interfaces and entities

cdma2000® is the trademark for the technical nomenclature for certain specifications and standards of theOrganizational Partners (OPs) of 3GPP2. Geographically (and as of the date of publication), cdma2000® is aregistered trademark of the Telecommunications Industry Association (TIA-USA) in the United States.

4

3GPP2 Standards Architecture – Key Aspects (1)

• Reflects SIP/IMS approach for 1x circuit services– Voice services– Emergency and location services– SMS– Supplementary services

• Packet data service model– Reuse existing interfaces (A10/A11) to PDSN from FAPs– Packet data service terminated in FAP is in roadmap for

second release of specifications

• Security architecture using IPsec/IKEv2– Certificates with simple authentication model– Basic IPsec/IKEv2 profiles

5

3GPP2 Standards Architecture – Key Aspects (2)

• Enhanced System Selection (ESS)/Preferred User Zone List (PUZL)– Provisioned data structures that supplement the existing Preferred

Roaming List (PRL) – Operates with unmodified macro systems (1x and EV-DO)– Addresses the notion of “autonomous” learning of PUZL information

by mobile devices – Analogous to CSGs in 3GPP with some additional functionality

• Air interface enhancements for 1x and EV-DO– Enhancements for improved femto <-> macro system handoff– Improved operation of ESS

6

3GPP2 Standards Architecture – Key Aspects (3)

• Local IP Access (Local Break-out)– Access to owner’s home network– Packet Data Service traffic can flow directly to home Internet service

• Remote IP Access (Local Break-in)– Access to owner’s home network via the home femtocell when

mobile device is operating on the macro system

• TR-069-based management architecture– Specification of Management Object contents and procedures (e.g.,

discovery, registration, provisioning)– New specification produced by the 3GPP2 Femto MO Ad Hoc Group– Formal definition of MOs to be included into Broadband Forum

specification TR-196 via liaison relationship

7

3GPP2 Reference Architecture – 1x Circuit

HLR/AC

MSC

MC

MAP

Mg (SIP)

Fx3

Fx2 (SIP)

AAA

Ma or ISC

(SIP)

MAP

1xMacro

Cell A2

PDE MPC

Fm(TR-096/

196)

ISUP

ISUP

TDM

TDM

Mm (SIP)

ISUPTDM

IPNetwork

Fx2 (SIP)

1x Macro BSC

A1 PSTN

1x

Femto Access Point

SIPUA

MS

MGCF/MGW

IMS

IP MultimediaNetwork

FCS

PSAP

Fx1 (RTP)

FemtoSecurityGateway

FMS

FemtoAAA

Fx1 (RTP)

Fx1 (RTP)

Legend:FCS Femto Convergence ServerFMS Femto Management System

8

3GPP2 Reference Architecture – Packet Data (Legacy)

Ty

FGW

Femto-AAA

MS/AT1x/

EV-DO

A11

Internet

(P)M

IP

AA

A(A

12

)AN-AAA

AAA

HA/LMA

PDSN

For A12 Device

Authentication

For Femto

Device

Authentication

EV-DOAN

FAP

A1

3

A1

6-1

9

SeGW

A10

BS/AN

PCRF

FMS

Fm

9

3GPP2 Reference Architecture – Packet Data (Release 2)

TyFGW

Femto-AAA

MS/AT1x/

EV-DO

Internet

(P)MIP

AA

A(A

12

)AN-AAA

AAA

HA/LMA

For A12 Device

Authentication

For Femto

Device

Authentication

AAA

For PDS

Authentication

EV-DOAN

FAP

FA/MAG

A1

3

A1

6-1

9

SeGW

IP

BS/AN

PCRF

PDST

FMS

Fm

10

3GPP2 Femtocell-Related Specifications

• System Requirements for Femto Cell Systems – S.R0126-0 v1.0• Interoperability Specification (IOS) pieces – A.P0024

– Includes Local IP Access support, handin/out, etc.• Packet Data Service pieces – X.P0059

– Packet data service aspects for 1x and EV-DO– SIP/IMS-based 1x legacy voice service– Basic management object contents

• Femto Management Objects – NEW• Network Reference Model, etc., – S.R0135• OAM&P for cdma2000 – S.S0028-E• Security Framework – S.S0132• Air Interface Enhancements for future femto-aware mobile devices

– EV-DO – C.P0024-C– 1x enhancement – C.P0005-E– Enhanced System Selection (ESS, a.k.a. PUZL) – C.P0016-D

• Enhanced version of the 3GPP Closed Subscriber Group (CSG) feature – Signaling conformance tests

• Performance requirements for FAPs

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3GPP2 Organization Structure and Roles in Femtocell-Related Work

3GPP2Organizational Partners/

Steering Committee

TSG-AAccess Network

Interfaces

TSG-CRadio Access

TSG-SService and System

Aspects

TSG-XCore Networks

• Local IP Access• Device Authentication• RAN Management Objects• Interworking between femto and macro systems

• Enhanced System Selection• 1x and EV-DO Radio Interface Enhancements• Minimum Performance Specifications• Air Interface Management Objects

• System Requirements• Security Architecture• 3GPP2 Program Management• 3GPP2 Vision• Network Reference Model• System Management Model

• Femto MO Ad Hoc Group • Packet Data Service Aspects• Security Protocols• Reference architecture for femtos• SIP/IMS-based Circuit Service Architecture and Protocols• IP-related Management Objects

Femto Forum

MRPRelationship

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Role of The TR-069 Standard in Femtocell Management

• Broadband Forum TR-069 has been selected as the framework for femtocell management– Widely supported by 3GPP2 (and 3GPP) vendors and carriers– Endorsed by Femto Forum

• Management architecture and TR-069 ACS are the backbone of the key femtocell operational and provisioning call flows in 3GPP2 (and 3GPP)– Discovery/Registration– Redirection to alternate SeGW, ACS, or Femto Gateway– Self-organizing network– Location verification– Provisioning and radio parameter assignments are managed

only by ACS– AAA and back-office interfaces are required only on ACS

13

SeG

W

TR-069/196 Management Architecture

Vendor AFAP

Vendor AFAP

Vendor AFAP

Vendor BFAP

FMS

(TR-069ACS)

CRM

CentralizedNMS

IPNetwork

CustomerPremises

OperatorCore Network/NOC

• SeGW Discovery/Provisioning• Femto Gateway Provisioning• FAP Location Verification • SON/Radio Resource Provisioning and Management• Other Provisioning• Error Logging and Reporting/Fault Management• Performance Management

Sta

nd

ard

ize

d N

ort

hb

ou

nd

In

terf

ac

es

(N

BIs

)

14

Femtocell Management Standardization Process

FemtoForum

3GPPRAN3->SA5

3GPP2TSG-X/A/C->

FMOAHG TR-196Femto Mgmnt Objects

Mgmnt ObjectFramework

BroadbandForum3GPP AI MO

Contents(UMTS, LTE)

3GPP2 AI MOContents

(1x, EVDO)

3GPP SpecificProcedures(Disc., etc.)

3GPP2 SpecificProcedures(Disc., etc.)

Mgmnt ObjectFramework

TR-069Framework

15

Complementary cdma2000 Femto Standards Activities Outside 3GPP2

• Close cooperation with Broadband Forum to ensure that 3GPP2-specified Management Objects get incorporated into TR-196

• Consider working with 3GPP on SIP/IMS femto architecture– Ensure 3GPP2 1x-specific services are supported

by 3GPP standards• Other areas of common interest with Femto Forum

and 3GPP2– Local IP Access– Regulatory issues