cdma2000 Femtocell
Standardization Activities
in 3GPP2
Representing 3GPP2
Bjorn Bjerke (Qualcomm)
Femtocell World Summit
June 21st-23rd, 2011
London, UK
3GPP2 Organization Structure and
Roles in Femtocell-Related Work
3GPP2
Organizational Partners/
Steering Committee
TSG-A
Access Network
Interfaces
• IOS-based femtocell interface
• Device Authentication
• RAN Management Objects
• Interworking between femto
and macro systems
MRP
Relationship
TSG-S
TSG-C
TSG-X
Service and System
Aspects
Radio Access
• Enhanced System Selection
• 1x and EV-DO Radio
Interface Enhancements
• Minimum Performance
Specifications
• Air Interface Management
Objects
Femto Forum
•
•
•
•
•
•
•
System Requirements
Femtocell System Overview
Security Architecture
3GPP2 Program Management
3GPP2 Vision
Network Reference Model
System Management Model
Core Networks
•
•
•
•
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
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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 g
oods and services, the cdma2000® mark certifies their compliance with cdma2000® standards. Geographically (and as of the date of publication), cdma2000® is a registe
red trademark of the Telecommunications Industry Association (TIA-USA) in the United States.
2
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/_2011/2011-05Dallas/Plenary/S00-20110523-111B__(Editor)%20S%20P01390%20Femto%20Systems%20Overview%20Draft_013.pdf
• Provides an overview of 3GPP2 femtocell specifications and
features
• Includes operator deployment guidelines
• Some contents include:
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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)
FemtoAAA
A1
2
AN-AAA
0
A1
MS/
AT
1x or HRPD
Air Interface
Security
Gateway
Femtocell
Access
Point
(FAP)
LIPA
A13,
A16-19
HRPD
RNC
S/
HA
RT
P
IMS
A26
Femto
Femto
Gateway
Gateway
(FGW)
(FGW)
IP
Network
RIPA
TR-069/TR-196
Home IP
Network
A13,
A16-19
PDSN
AAA
SI
P/
IM
IPsec
Tunnel
1
/A1
Femtocell
Femtocell
Convergen
Convergence
ce
Server
Server
(FCS)
(FCS)
Femto
Management
System
(FMS)
ANSI-41/
MAP
MSC
HLR/VLR
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3GPP2 Femtocell System Architecture
(Legacy IOS-based)
FemtoAAA
A1
2
AN-AAA
0
A1
MS/
AT
1x or HRPD
Air Interface
Security
Gateway
Femtocell
Access
Point
(FAP)
1
/A1
PDSN
AAA
RIPA
IP
Network
HA
LIPA
Home IP
Network
IPsec
Tunnel
Femto
A13,
A16-19
A1p/A2p
/A25/A26
Femto
Femto
Gateway
Gateway
(FGW)
(FGW)
A13,
A16-19
HRPD
RNC
Management
System
(FMS)
A1p/A2p
MSCe
HLR/VLR
ANSI-41/
MAP
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LIPA and RIPA
handset in
macro
network
Remote IP access allows handset in macro
network or public IP network to securely
communicate with IP host in home domain
as if it is at home.
Operator’s
Backhaul
WWW
Internet
TV
Residential
Backhaul
(Firewall)
PDSN
Operator’s
IP Domain
Local IP access allows
handset at home to
communicate with IP host
in the operator’s domain
and home domain
simultaneously.
Home IP Domain
Femto /
Router
Printer
handset in
femto
coverage
Media
Server
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Femtocell Management
Standardization Process
Mgmt Object
Framework
3GPP
Femto
Forum
3GPP Specific
Procedures
(Disc., etc.)
Mgmnt Object
Framework
Broadband
Forum
RAN3->SA5
3GPP AI MO
Contents
(UMTS, LTE)
3GPP2 AI MO
Contents
(1x, EVDO)
3GPP2
TSG-X/A/C->
FMOAHG
3GPP2 Specific
Procedures
(Disc., etc.)
TR-196
Femto Mgmnt Objects
TR-069
Framework
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Role of TR-069 in Femtocell Management
• Broadband Forum TR-069 has been selected as the
framework for femtocell management
– Widely supported by 3GPP2 (and 3GPP) vendors and operatos
– Endorsed by Femto Forum
• Functions controlled via provisioning
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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 Specifications
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•
System Requirements for Femto Cell Systems – S.R0126-0 v1.0
Femtocell System Overview – S.R0139-0
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Interoperability Specification (IOS) – A.S0024
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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
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Includes hand-in/-out, IOS interface support for connecting to MSC/MSCe
SIP/IMS-based 1x Circuit and Packet Data Service Aspects – X.S0059
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Providing guideline to operators on deployment considerations for cdma2000 femtocells
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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