Transcript IMT-2000

Standard Activities of
ITU-T Special Study Group on
IMT-2000 and Beyond
For HSN 2001
14-16 February 2001
Young Kyun Kim, Ph.D.
Vice Chair, ITU-T SSG on IMT-2000 and Beyond
Senior Vice President, Samsung Electronics
From IMT-2000 to Beyond IMT
• Member of IMT-2000 Standards family
• MOBILE MULTIMEDIA
All systems, All services
Integrated provision of personalized, enhanced
services over the most efficient / preferred
networks
•
•
Many, seamlessly integrated systems
PERSONALISED SERVICES
MARKET driven
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Vision of Systems Beyond IMT-2000
After Mobile Internet, What is Next?
•For users
-True Personalized Services
•Which Applications?
- always working across networks and
being aware of users’ situation
•Which Technologies?
-Re-configurable radio architecture
-Efficient Protocols for Wireless services
-IP Evolution
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ITU-T Objectives and Point
of View:
• Continue and enhance cooperation and
Collaboration for IMT-2000 global standards:
– Set the scene for continuing cooperation and collaboration for
IMT-2000 global standards
– Inform SDOs of 3GPPs about WTSA discussions and decisions
on the new Special Study Group on IMT-2000 and beyond
– Re-initiate interaction with SDOs of 3GPPs for mutual benefit
– Discuss how and where ITU-T’s new SSG on “IMT-2000 and
beyond” can add value, with the aim of reaching an agreement
on responsibility split between ITU-T and SDOs:
• Identify and define work items
• Set timetable for when results are needed
• Identify and initiate realistic and workable mechanisms for
maintaining and enhancing ongoing collaboration and
cooperation
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Outline:
ITU-T IMT-2000 and Beyond
• Past: what has ITU-T done so far?
• Present: what is ITU-T doing now?
– NNI (Core Network to Core Network Interface)
• Future: why create this special study group?
– Growth of Wireless Access, Internet
– Correlation of Wireless Access and Internet
• Why is this SG special?
– Recommendation A.9 Provisional Working Procedures
– Management Team
• Going forward
– Mandate and organization of work
– Emphasis on collaboration, cooperation, partnering
– Going beyond IMT-2000
WTSA-2000
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IMT-2000: Pre-WTSA-2000
Telecomms. Standards
Radio Communications
Mobile
Signaling & Protocols
IMT-2000 Radio Aspects
IMT-2000 Signaling Req’ts
Other IMT-2000 Activities in ITU-T
• Services (SG 2)
• Numbering & Identities (SG 2)
• OAM (SG 4)
• Security (SG 7)
• Interworking (SG 13)
• Speech & Video coding (SG 16)
WTSA-2000
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IMT-2000: Pre-WTSA-2000
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ITU-T IMT-2000 Specifications:
Structure
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ITU-T IMT-2000 Specifications:
Current Status
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GSC5 and RAST 8 Resolution 6:
Common NNI
The Global Standards Collaboration 5 (GSC5) meeting
(Williamsburg, Virginia, 1999) and the Radio
Standardization 8 (RAST8) meeting jointly
resolve
that they recognize the need for the common NNI
protocol in a multi-network environment in order to
derive benefit from existing (“fixed” and “mobile”)
investments and supports in principle the ITU-T SG 11
effort in support of global roaming and seamless
service provisioning. ...
-9-
IMT-2000 Family of Systems
and NNI
• ITU-T adopted the IMT-2000
Family of Systems Concept
with the understanding that
IMT-2000 standardization work
is to be carried out in close
cooperation with regional
standards bodies
• Global roaming and seamless
service provision to subscribers
are key operator targets
• Close cooperation and collaboration between ITU-T and the
SDOs developing IMT-2000 Family Member specifications
will greatly facilitate the harmonization and timely
availability of global standards for the world community
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ITU-T IMT-2000 Interfaces:
NNI status
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SSG - IMT-2000 and Beyond
• Why create this study Group?
– growth of wireless access outstripping traditional access
• soon will be over 50% of all subscribers
• already the case in some markets (Scandinavia,
Japan, Mexico, ...)
– explosive growth of the Internet
• strong correlation between wireless access and
internet usage
• leads to “Wireless Internet”
– multiple forums working on 3G systems
• need to promote harmonization and convergence
• rapidly increasing importance of globalization
WTSA-2000
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Wireless Internet
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Mobile Internet Outlook
Projected
cellular
subscribers
Millions
1,400
(Nokia 1999)
1,200
1,000
More handsets than PCs
connected to the internet by the
end of Yr 2003!
Projected Web
handsets
800
(Nokia 1999)
600
400
Projected PCs
connected to
the Internet
(Dataquest 10/98)
200
0
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005
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Migration towards an IP-based
backbone network is taking place
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Future IMT-2000 Network
Voice Core
IMT-2000
Network
PSTN
Network
IP Core
Internet
Cable
Network
Access
Wireless
Access
“ Open Network Architecture
based on IP Core Network ”
- 16 -
Why is this SG special?
• Given significant freedom in conducting its business:
– Paperless meetings to maximum extent possible
– Reduced meeting notice requirements (one month,
electronically)
– Reduced contribution submission deadline
– All documents to be available on ITU web site
– Meeting reports to be made available quickly
– May use teleconferences, other means to conduct work
• A de facto trial of selected reform aspects!
• Plus has the usual powers of a Study Group:
– Create and approve Recommendations
– To advise TSAG on effectiveness of new procedures
- 17 -
Summary of Mandate (1 of 2)
• Lead SG on IMT-2000 and beyond and for mobility
• Primary responsibility within ITU-T for overall network
aspects of IMT-2000 and beyond
– Work plan
– Migration path from existing IMT-2000 systems towards
systems beyond IMT-2000
• Long term common IP-based architecture
• Near term IP-based internetworking
– Overview road map
– Interworking functions, if not done elsewhere
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Summary of Mandate (2 of 2)
• In addition, will study:
- Harmonization of IMT-2000 Family members as they evolve
beyond IMT-2000
- Evolution of network aspects utilizing IMT-2000 RTTs as FWA
Network aspects of convergence of fixed and wireless networks
- Standardization of IMT-2000 interfaces where needed
• Work with ITU-D to assist developing countries in applying IMT-2000
Collaborate with ITU-R 8F (radio) and 8D (satellite)
• Strong cooperative relations and complementary programs with
SDOs, 3GPPs
• May develop and approve Recommendations
- may investigate and make proposals to TSAG on alternative
types of output and associated approval process, e.g., normative
technical specifications or interim Recommendations
• Make use of provisional working procedures specific to SSG
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Assigned Questions
• Q.A/IMT: Network signaling requirements for wireless access
to services provided over IP-based networks
• Q.B/IMT: Network signaling requirements for emerging
mobility services (IMT-2000 and their evolution) including
services over IP-based networks
• Q.C/IMT: Network signaling requirements for the support of
Virtual Home Environment (VHE) in mobile networks
• Q.D/IMT: Network signaling protocols for emerging mobility
services (IMT-2000 and their evolution), including IP services
- 20 -
Working Party Structure
WP 1/SSG Service and Interface requirements for IMT-2000
and Beyond
Chairman: Mr. Syed Husain (Motorola, USA)
Vice-Chairman: Mr. Kirit Lathia (Siemens, Germany)
Vice-Chairman: Mr. Hiroshi Nakamura (NTT DoCoMo, Japan)
WP 2/SSG Application and Interworking of IMT-2000 Systems
Chairman: Mr. Leslie Graf (Ericsson, Australia)
Vice-Chairman: Mr. Maurice Ghazal (MPT, Lebanon)
Vice-Chairman: Mr. Patrick Masambu (Communications
Commission, Uganda)
WP 3/SSG Harmonization and Convergence of IMT-2000
Systems
Chairman: Mr. Young Kim (Samsung Electronics, Korea)
Vice-Chairman: Mr. Krishna Sirohi (Ministry of Comms, India)
Vice-Chairman: Mr. Yuri Trofimov (NIIR, Russia)
- 21 -
Question Allocation
WP 1 Service and Interface requirements for IMT-2000 and
Beyond
Q.1/SSG Service and network capability requirements and network
architecture
Q.2/SSG NNI mobility management protocol
WP 2 Application and Interworking of IMT-2000 Systems
Q.3/SSG Identification of existing and evolving IMT-2000 Systems
Q.4/SSG Interworking functions to be used with existing and evolving
IMT-2000 systems
Q.5/SSG To participate in the preparation of a Handbook on IMT-2000
WP 3 Harmonization and Convergence of IMT-2000 Systems
Q.6/SSG Harmonization of existing IMT-2000 Systems
Q.7/SSG Convergence of fixed and existing IMT-2000 systems
Management Team
Q.8/SSG Special Study Group working procedures
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Revised Questions (1 of 3)
Q.1/SSG
Service and network capability requirements and
network architecture
– establish a clear vision for future mobile services and network
capability requirements for “beyond IMT-2000 systems”
Q.2/SSG
NNI mobility management protocol
– define new mobility management signaling application
protocols, or enhancements to existing protocols, needed to
support IMT-2000 services to enable global roaming between
different IMT-2000 family systems
Q.3/SSG
Identification of existing and evolving IMT-2000
Systems
– identify architectures, detailed specifications and releases
which have been and will be produced by recognized SDOs
which make up existing and evolving IMT-2000 systems
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Revised Questions (2 of 3)
Q.4/SSG
Interworking functions to be used with existing
and evolving IMT-2000 systems
– identify (and define if not done elsewhere) Interworking
functions to facilitate appropriate Interworking between existing
and evolving IMT-2000 family members, PSTN/ISDN and
Packet Data networks
Q.5/SSG Preparation of a Handbook on IMT-2000
– work with the D and R sectors, coordinate T sector input for a
handbook on IMT-2000 to assist developed and developing
countries
Q.6/SSG Harmonization of existing IMT-2000 Systems
– define interface requirements and network architectures for
harmonization of existing and evolving IMT-2000 systems to
provide seamless global roaming for IMT-2000 future Capability
Sets (that will include high speed packet data, multimedia, and
IP-based services)
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Revised Questions (3 of 3)
Q.7/SSG
Convergence of fixed and existing IMT-2000
systems
– describe the principles and requirements for the convergence
of fixed and IMT-2000 networks
– describe the architectural requirements for a converged
core network to support IMT-2000 capabilities accessible from
various wireless and wire line access technologies to support
current and evolving IMT-2000 capabilities
Q.8/SSG Special Study Group working procedures
– considering the provisional working procedures for the SSG
(Rec. A.9), develop further working procedures (including new
output document types as appropriate) to ensure that the SSG
can respond rapidly to the requirements of Member States and
Sector Members
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Deliverables (1 of 2)
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Deliverables (2 of 2)
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Proposed Work Plan for Q.6/SSG
(1 of 2)
•
Recommendation on harmonization principles of existing IMT2000 systems
– Completion Date: 4Q 2001
– Activities
• To define the scope and charter for carrying out the work
assigned to the question
• To draft outlines for the deliverable(s)
• Confer the results of first Q.3 Rapporteur’s meeting
• Analyse existing IMT-2000 systems to be harmonized
• Identify issues, requirements and level of the harmonization of
existing IMT-2000 systems
•
Recommendation on the harmonization requirements of existing
IMT-2000 systems
– Completion Date: 4Q 2002
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Proposed Work Plan for Q.6/SSG
(2 of 2)
•
Recommendation on a mid-term harmonized network architecture
including the enhancements of the concept within
Recommendation Q.1711 (functional architecture) in close
cooperation with external organizations
– Completion Date: 4Q 2003
– Activities
• Analyse the concepts within Recommendation Q.1711
(functional architecture)
• Recommendation on a mid-term information flows for the
harmonized IMT-2000 systems
– Completion Date: 4Q 2004
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Proposed Work Plan for Q.7/SSG
(1 of 4)
•
Recommendation on principles and requirements for convergence
of fixed and existing IMT-2000 systems
– Completion Date: 2Q 2002
– Activities
• Cover the identification of work done (e.g., IETF, ITU, 3GPPs)
• Analyse the fixed systems to be converged
• Analyse existing IMT-2000 systems to be converged
• Analyse the first deliverable of Q.6/SSG (principles and
requirements of harmonization, expected completion at 4Q
2001)
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Proposed Work Plan for Q.7/SSG
(2 of 4)
•
Recommendation on network architecture and interface
requirements to facilitate evolution of existing fixed networks
towards converged core network supporting IMT-2000 capabilities
– Completion Date: 1Q 2003
– Activities
• Define a functional architecture with possible mapping to
existing standards (with information from 3GPPs, IETF, ITU-T)
• Identify any new network entities needed to achieve
convergence
• Concerning interfaces, identify
– potential protocols and the additional requirements needed
on the current protocols to achieve convergence
– the need for new protocols (in particular if new functional
entities have identified)
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Proposed Work Plan for Q.7/SSG
(3 of 4)
• Recommendation on access network interface
requirements for utilizing IMT-2000 RTT as FWA with
existing fixed networks
– Completion Date: 4Q 2003
– Activities
• Enhance existing access network interface requirements
• Address the potential new radio interfaces which could be used
with fixed access
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Proposed Work Plan for Q.7/SSG
(4 of 4)
• Recommendation on Architectural and network interface
requirements for converged core network to facilitate
services transparency to users across different access
arrangements, including migration path for network
convergence
– Completion Date: 4Q 2004
– Activities
• Develop architectural requirements for converged core network
consistent with the long term network architecture as delivered
by Q.1/SSG to ensure capture of the convergence
requirements
• Cover further evolution of network entities and protocols
needed to achieve convergence
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Upcoming ITU-T SSG Meetings
Rapporteurs:
• Feb 12-14 Stockholm Q.3/SSG
• Feb 14-16 Paris Q.1/SSG
TSAG
• Mar 19-23 Geneva Oversight & Coordination
Full SSG
• May 7-11 Geneva
• Aug or Sep Brazil (tbc)
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Relationships
•
•
•
•
•
•
•
ITU-R
ITU-D
3GPP
3GPP2
IETF
Regional SDOs
Other relevant fora
–
–
–
–
OHG
3G.IP
MWIF
etc.
- 35 -
Approach
How and on what topics can ITU-T SSG on “IMT-2000
and beyond” and 3GPP2 work together?
- 36 -
Where ITU-T can add value in global
IMT-2000 and beyond standardization
• Leadership through coordination, consensus building, and
collaborative working arrangements
– with 3GPPs, SDOs, other relevant fora
• Facilitating adoption of appropriate external specifications
as ITU-T Recommendations
– act as a single source for IMT-2000 and related standards
• Development of requirements and architectural framework
Recommendations as needed and appropriate
– provide context and structure for IMT-2000 related specifications
• Identifying emerging industry needs for global standards
– propose efficient and coordinated work planning and sharing
arrangements with external forums to meet needs
• Facilitating interoperability and interworking between IMT2000 family members for global roaming, seamless service
delivery
– provide interworking specifications if not done elsewhere
- 37 -
Straw man for collaboration &
cooperation: 3GPPs SDOs & ITU-T
• Discuss and agree on a framework for cooperation and
collaboration on the architectural framework, signaling
requirements and protocol aspects of IMT-2000, including
the following:
– revisions and updates of existing framework and signaling
recommendations
– development of the Common NNI for interoperability and seamless
global roaming in a multi-network environment
– work schedule
– appointment of contact persons for each of the cooperating
standards bodies
– implementation mechanisms (e.g., exchange of meeting reports,
holding of coordination meetings, etc.) to ensure maximum degree
of efficiency
- 38 -