cdma2000 femtocell standardization activities in 3gpp2 representing 3gpp2 bjorn bjerke (qualcomm)...
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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
3
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.
4
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
5
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
9
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
10
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
13
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
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