cdma2000 FemtocellStandardization Activities

in 3GPP2

Representing 3GPP2Bjorn Bjerke (Qualcomm)

Femtocell World Summit

June 21st-23rd, 2011

London, UK

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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

-IOS-based femtocell interface-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-Femtocell System Overview-Security Architecture-3GPP2 Program Mgmt-3GPP2 Vision-Network Reference Model-System Management Model

-Femto MO AdHoc 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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3GPP2 Primary Specifications

3GPP2 is focused on the development cdma2000®1 technologies.•Air Interfaces

– cdma2000 1x – Rev 0 through E

– HRPD – Rev 0 through C

•Core Networks– TIA-41

– cdma2000 Wireless IP Network

– Open Service Access - Application Programming Interface

– Legacy MS Domain

– Multimedia Domain

– Multimedia Messaging Services

•Access Network Interfaces•System Applications•Vocoders

1cdma2000® is the trademark for the technical nomenclature for certain specifications and standards of the Organizational Partners (OPs) of 3GPP2. When applied to goods and services, the cdma2000® mark certifies their compliance with cdma2000® standards. Geographically (and as of the date of publication), cdma2000® is a registered trademark of the Telecommunications Industry Association (TIA-USA) in the United States.

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Background

• 3GPP2 began work on femtocell-related standardization in early 2007– Kicked off through 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)

• Initial (Phase I) femtocell specifications completed Q1 2010

• Revised (Phase II) specs support femtocells connecting to MSC/MSCe, to be completed Q3 2011

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Key Features

• Preferred User Zone List (PUZL) as part of Enhanced System Selection (ESS)

– “Fingerprint” of the FAP (femtocell access point) location by the MS to assist in autonomous scanning and selection of FAPs, including handoff assistance

– Facilitate automatic FAP selection, black list and white list management in terminals

• Active handoff from macro to FAP– Legacy terminals supported through the reverse-link detection of mobile signal

or out-of-band detection– Enhanced terminals supported through the new overhead message that

advertises unique FAP identity

• Air interface enhancements for 1x and EV-DO– Operates with unmodified macrocell systems (1x and EV-DO)– Allows flexible partitioning of PN code space between macrocell

system and femtocell system– Augmented overhead for quick discovery of unique FAP identity,

access type (open/restricted), human-friendly ID, location information

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S.R0139 Femtocell System Overview

• In final stages of development – expecting publication 3Q 2011 ftp://ftp.3gpp2.org/TSGS/Working/_2011/2011-05-Dallas/Plenary/S00-20110523-111B__(Editor)%20S%20P0139-0%20Femto%20Systems%20Overview%20Draft_013.pdf

• Provides an overview of 3GPP2 femtocell specifications and features

• Includes operator deployment guidelines• Some contents include:

– System Architecture Overview

– RF Planning Guidelines

– Interference Management

– Access Control

– Femtocell System Security Aspects

– Overview of Mobility Solutions

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3GPP2 Femtocell System Architecture

• Two possible architectures for voice– SIP/IMS approach for connecting femtocells to IMS

convergence server– Legacy IOS interface connecting to existing MSC/MSCe

• Packet data service model– Reuse existing interfaces (A10/A11) to PDSN from FAP

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

• TR-069-based management architecture– Specification of Management Object contents and procedures

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3GPP2 Femtocell System Architecture (IMS)

FemtocellAccessPoint(FAP)

SecurityGatewayMS/

AT

1x or HRPD

Air Interface

IPsecTunnel

PDSN

AAA

HA

IP Network

ANSI-41/MAP

MSC

HLR/VLR

Femto-AAA

AN-AAA

FemtocellConvergence

Server(FCS)

FemtoGateway(FGW)

Femto-AAA

RIPA

Home IP Network

TR

-069/TR

-196

A13, A16-A19,A26

A13, A16-A19

IMS

Femto ManagementSystem (FMS)

HRPDRNC

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3GPP2 Femtocell System Architecture (Legacy IOS-based)

FemtocellAccessPoint(FAP)

SecurityGatewayMS/

AT

1x or HRPD

Air Interface

IPsecTunnel

PDSN

AAA

HA

IP Network

ANSI-41/MAP

MSCHLR/VLR

Femto-AAA

AN-AAA

FemtoGateway(FGW)

Femto-AAA

RIPA

Home IP Network

A13, A16-A19,A26

A13, A16-A19

HRPDRNC

Femto ManagementSystem (FMS)

TR-069/TR-196

A1p/A2p/A25

A1p/A2p

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LIPA and RIPA

Femto /Router

Handset in femto coverage

PDSN

MediaServer

Printer

TV

Home IP Domain

Operator’s Backhaul

Handset in macro network

Operator’sIP Domain

InternetInternet

Residential Backhaul (Firewall)

WWW

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Femtocell Management Standardization Process

FemtoForum

3GPPRAN3->SA5

3GPP2TSG-X/A/C→

FMOAHG TR-196Femto

Mgmt Objects

Mgmt ObjectFramework

BroadbandForum3GPP AI MO

Contents(UMTS, LTE)

3GPP2 AI MOContents

(1x, EVDO)

3GPP SpecificProcedures

3GPP2Specific

Procedures

Mgmt ObjectFramework

TR-069Framework

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Role of TR-069 in Femtocell Mgmt

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

• Functions controlled via provisioning– Discovery/Registration– Redirection to alternate SeGW, ACS, or Femto Gateway– Self-organizing network– Location verification– Provisioning and radio parameter assignments

• 3GPP2 FAP device management model is included as part of TR-196 issue 2 – to be published soon

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3GPP2 Femtocell-Related Specs• System Requirements for Femto Cell Systems – S.R0126-0 v1.0• Femtocell System Overview – S.R0139-0

– Providing guideline to operators on deployment of cdma2000 femtocells

• Interoperability Specification (IOS) – A.S0024– Includes hand-in/-out, IOS interface support for connecting to MSC/MSCe

• SIP/IMS-based 1x Circuit and Packet Data Service Aspects – X.S0059– Packet data service aspects for 1x and EV-DO– Local and Remote IP Access support– SIP/IMS-based 1x legacy voice service

• Femto Management Objects – X.R0063 (subset of TR-196 issue 2)• Network Reference Model, etc., – S.R0135• Security Framework – S.S0132• Air Interface Enhancements for future femto-aware mobile devices

– EV-DO – C.S0024-C– 1x enhancement – C.S0005-E– Enhanced System Selection (ESS, a.k.a. PUZL) – C.P0016-D– Signaling conformance tests

• Performance requirements for FAPs