Progress of ITU-T SSG: “IMT-2000 and Beyond” 3GPP2 Vision Ad-hoc 18 August, 2003 Seoul, Korea...

Progress of ITU-T SSG:“IMT-2000 and Beyond”

3GPP2 Vision Ad-hoc 18 August, 2003Seoul, Korea

Dr. Young Kyun KimVice Chairman, ITU-T SSG Senior Vice PresidentSAMSUNG [email protected]

18 August 2003 - 2Special Study Group on IMT-2000 and Beyond

Objective and Outline

• Objective:– provide overview of ITU-T SSG activities on “IMT-2000 and Beyond”

• Outline:– SSG Mandate– SSG Work structure– Results so far– Going forward

• Referencing• OHG, 3GPPs and Harmonization• Vision beyond IMT-2000

– Conclusion– Some thoughts on 3G Evolution


Dramatic Growth Forecast for Worldwide 3G Revenues

Subscriber Growth

Data Subscriber Growth

Data Traffic Growth

Applications Growth

“Realistically Forecasting 3G Users and Revenues”

Paola Tonelli, UMTS Forum Operators’ Group Chairperson

UMTS 2001, Barcelona, 17 October, 2001

http://www.umts-forum.org


Revised forecasts with industry downturn

“The continuing economic downturn and the catastrophic events of September 11th last year have given rise to concerns about the viability of mobile data services and in particular 3G. These concerns have been exacerbated by the slowdown in subscriber growth and the announcements by many operators of reduced capital expenditures. These developments have prompted The UMTS Forum to re-examine its 3G market forecasts published in August 2001. The results appear in the Forum’s Report No 18. The conclusion of this report is that there is no necessity to revise growth figures projected in the August 2001 report, which, in any event, were built on an assumption of slow adoption for the first five years of 3G availability.”

Source: MobilleniuM, June 2002 ( http://www.umts-forum.org/mobilennium_online/2002.06/index.html )

Special Study Group on IMT-2000 and Beyond


Why is Special Study Group ?

• Given significant freedom in conducting its business:– Paperless meetings to maximum extent possible– Reduced meeting notice requirements and contribution submission deadline– All documents made available on ITU web site– Formal meeting reports made available quickly– Use of e-meetings, teleconferences, other means to conduct work

• Plus has the usual powers of a Study Group:– Develop and approve Recommendations

• Must report to TSAG regularly:– On progress of work, and on effectiveness of new procedures and

working methods


Summary of SSG Mandate

• Lead SG on IMT-2000 and beyond and for mobility

• Primary responsible for studies relating to network aspects of IMT-2000 and beyond, including wireless Internet, convergence of mobile and fixed networks, mobility management, mobile multimedia functions, internetworking, interoperability and harmonization of evolving IMT-2000 networks

• To assist developing countries in applying IMT-2000 networks

• Emphasis on strong cooperative relations and complementary programs with SDOs, 3GPPs


TIATTAT1P1ARIB/TTC

GSM- based UMTS

Mobile IP

IMT-2000 Standards:a Global Partnership

IS-41 + CDMA2000+ M-IP Architecture

IMT-2000

ITU-T SSG

ITU-R WP 8F


SSG Mandate translated intoStudy Questions

• Q.1/SSG Service and network capability requirements andnetwork architecture (“Vision”)

• Q.2/SSG NNI mobility management protocol

• Q.3/SSG Identification of existing and evolving IMT-2000Systems (“ID Systems”)

• Q.4/SSG Interworking functions to be used with existing andevolving IMT-2000 systems

• Q.5/SSG Preparation of a Handbook on IMT-2000 (“Handbook”)

• Q.6/SSG Harmonisation of existing IMT-2000 Systems

• Q.7/SSG Convergence of fixed and existing IMT-2000 systems(“Convergence”)

• Question details are available at: http://www.itu.int/ITU-T/studygroups/ssg/questions.html


SSG Work Topics and Relationships

For consideration by:

OperatorInputsOperator

Inputs

Q.1/SSGVision

Q.2 & Q.6/SSGMobility Mgmt. &Harmonization

Q.7/SSGConvergence

SSG

Q.3/SSGID Systems

Q.5/SSGHandbook

Q.4/SSGInterworking

•Some consider important but no

contributions


Q.1/SSG: “Vision” –Key results to date

• Closely coupled with ITU-R WP 8F IMT-2000 framework– SSG and WP 8F working together to ensure consistency between

Radio and Core Network views: describe a common ITU “Vision”– ITU-T Rec. Q.1702 (“Long-Term Vision of Network Aspects for

Systems Beyond IMT-2000”) approved 4 July 2002– ITU-R Rec. M.1065: “Framework and overall objectives of the future

development of IMT-2000 and systems beyond IMT-2000”: Jun 2004

– ITU-T Rec Q.SNFB (“Services and Network Capabilities Framework of Network Aspects for Systems Beyond IMT-2000”); target: 2Q2004

and beyond

SSG

WP 8F


Temp 8/110-05159033

X X X X X X X XX X X X X X X

FIGURE 5

Illustration of complementary access systems

· Full coverage· Global access· Full mobility· Not necessarily individual links

· Full coverage and hot spots· Global roaming· Full mobility· Individual links

· Local coverage· Hot spots· Global roaming· Local mobility· Individual links

· Short range communication· Global roaming· Individual links

· Personal mobility· Global access

Distribution layer

Cellular layer

Hot spot layer

Personal network layer

Fixed (wired) layer

Horizontal: handover within a system

Vertical: handover between systems

Possible return channels

Defining the Vision:Complementary Access Systems

ITU-R Recommendation M.1065: “Framework and overall objectives of the future development of IMT-2000 and systems beyond IMT-2000”

Figure 5: Illustration of complementary access systems

From ITU-R Doc. 8/110-E,Radio Assembly, 2 - 6 June 2003


Q.2, 6, 7/SSG: Mobility Mgmt, Harmonization, Convergence

• Acting as a catalyst and facilitator toward global roaming, service and network interoperability– Promote adoption of common approaches – Identify differences, identify candidate solutions if available, interact

with regional bodies to facilitate agreements– Regional bodies remain in full control: may choose to act or not

based on own decision processes as supported by membership

• Supporting OHG initiative toward a common IP Core Network approach (April 2002, Toronto)– Operator involvement and support essential to drive agreements

and achieve success

• Deliverable outlines and initial drafts available, work progressing well: deliverables in 2003 and 2004


3GPP & 3GPP2 All IP Core Network Harmonization Agreements

• Harmonization of 3GPP and 3GPP2 IP Multimedia Core Networks is worthwhile and achievable– goal being pursued by both PPs

• Focus harmonization efforts where synergies already exist:– OSA/PARLAY based service APIs– IMS (3GPP IP Multimedia Subsystem and equivalent in 3GPP2 MMD)

• 3GPP and 3GPP2 adopting:– a single IMS reference model– consistent terminology to describe common IMS functional entities

• 3GPP and 3GPP2 working to ensure:– interoperability between the 3GPP and 3GPP2 IMS mobiles (a 3GPP IMS

mobile can set up a session with a 3GPP2 IMS mobile and vice-versa)– application level intersystem IMS roaming (given that the mobile

supports the visited network’s access network and IP transport technology, a 3GPP IMS mobile should be able to roam into a 3GPP2 network and vice-versa)


Drivers for IP CN Harmonization

• Extended Service Opportunity– Heterogeneous core network is strongly needed by operators to provide the

opportunity of service transparency, seamless roaming and common application.– VHE service can be provided in various environment.– Service can be extended and enhanced without impact and additional investment

on existing IP CN.

• IP based Trend– Service creation over IP based CN could become easier.– Abundant Internet services can be easily provided and accessible.– The direction of moving toward IP based multimedia service.

• Promising Aspect of Access Transparency– Increasing heterogeneity of access technologies (i.e., UTRAN, cdma2000 RAN,

WLAN) give rise to the strong need for IP based CN– Long-term investment in IP CN is possible regardless of various fast access

technology development


Q.6: Harmonized IP CN

WORLD HANDSET

World Handset

IP Network

CDMA2000RAN

W-CDMARAN

WPAN WLAN

HSDPA

Services Services Services Services

Harmonized

All IP CN

World HandsetCDMA2000

1x EV-DV RAN

Concept of a common IP CN designed to ensure service transparency Concept of a common IP CN designed to ensure service transparency between evolving IMT-2000 systems and access technologies through between evolving IMT-2000 systems and access technologies through IP-based networkIP-based network


Heterogeneous Network Operation

Always Best Connection Ubiquitous NetworkAlways Best Connection Ubiquitous Network

•IMS CN

•CDMA2000 RAN

•WCDMA RAN

•Mobile Internet AN•(Also 3.5G/4G/WLAN)

•CDMA2000•IP CN

•WCDMA•IP CN

•Hybrid Mobile•Terminal

•Micro/Macro Cell•Advanced RF

Converged Heterogeneous NetworkConverged Heterogeneous Network


Q.2 (Mobility Mgmt) & Q.7(Convergence) Q.2/SSG:

– A technical report on “MM framework and functional architecture for systems beyond IMT-2000” (4Q2004)

– A technical report on “MM functional information flows and protocol development” (2Q2005)

Q.7/SSG:– A document on “Lawful interception requirements for the

converged and harmonized networks” (2Q2004)– A document on “Network architecture and interface

requirements to facilitate evolution of existing public fixed networks towards converged core network supporting IMT-2000 capabilities” (4Q2004)

– A document on “Access network interface requirements for utilizing IMT-2000 radio access technologies as FWA with existing public fixed networks” (4Q2005)


Q.3/SSG: “ID IMT-2000 Systems” –Key results to date

• Q.1741.1 (Rel. 99) approved April 2002

• Q.1741.2 (Rel. 4) approved Dec. 2002

• Q.1741.3 (Rel. 5) target Sep 2003

• Q.1742.1 (Jul 01): approved Nov. 2002

• Q.1742.2 (Jul 02): target Jul 2003


Q.5/SSG: “Handbook” -Key results to date

• joint activity of all three ITU sectors (Radio, Telecoms, Development)

• 1st edition completed and approved

• process defined for amendments to 1st edition and development of 2nd edition

• ITU-R

• ITU-T

• ITU-D


Summary of Recent Activities

• Q.1/SSG: Two PDNRs (Preliminary Draft New Recommendation) of Q.SCFN (Service Capabilities Framework of Network Aspects for Systems Beyond IMT-2000) and Q.NCRB (Network Capability Requirements for Systems Beyond IMT-2000) was approved and merged to producing a single PDNR of Q.SNFB (Service and Network Capabilities Framework of Network Aspects for Systems Beyond IMT-2000) ver1.1

• Q.2/SSG: Revised Q.TRMMR (Technical Report on Mobility Management Requirements for Harmonized IMT-2000 Family of Systems)

• Q.3/SSG: Q.1741.3 (IMT-2000 References to Release 5 of GSM evolved UMTS Core Network) and Q.1741.2 (IMT-2000 References to ANSI-41 evolved Core Network with cdma2000 Access Network) were consented and under AAP (Alternative Approval Procedure)

• Q.6/SSG: Supplement text, “Emergency Services for IMT-2000 Networks – Requirements for Harmonization and Convergence,”

• Q.7/SSG: Revised Q.FMCReq (Principles and requirements for convergence of fixed and existing IMT-2000 systems)


SSG adds value in global standardsfor “IMT‑2000 and Beyond”

• Leadership through coordination, consensus building, and collaborative working arrangements

• 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 appropriate

• Identifying emerging industry needs for global standards

• Facilitating interoperability and interworking between IMT‑2000 family members for global roaming, seamless service delivery


Conclusion

• Meeting end user needs such that everyone wins is the essential driver for operators and vendors– Global roaming, seamless service delivery, network interoperability

• Dealing with heterogeneity is fundamental to success– Evolution from and Interworking with 2G and 3G systems and beyond

• Consistency in APIs will allow the infrastructure to evolve without rendering services obsolete

• 3GPPs and ITU provide complementary near, medium and long term perspectives

• ITU-T SSG and ITU-R WP 8F add an essential global perspective to regional standards activities


1 10 100 1000

FIGURE 2

Illustration of capabilities of IMT-2000 and systems beyond IMT-2000

Enhancement

Denotes interconnection between systems via networks, which allows flexible use in any environment without making users aware of constituent systems

Nomadic/local area access systems

Digital broadcast systems

Peak useful data rate (Mbit/s)

Dashed line indicatesthat the exact datarates associated withsystems beyond IMT-2000are not yet determined

New capabilitiesof systems beyondIMT-2000

Systems beyond IMT-2000 will encompassthe capabilities of previous systems

Mobility

High

Low

Newmobileaccess

New nomadic/localarea wireless access

EnhancedIMT-2000

IMT-2000

Dark shading indicates existing capabilities, medium shading indicates enhancements to IMT-2000, and the lighter shading indicates new capabilities of systems beyond IMT-2000.

The degree of mobility as used in this Figure is described as follows: low mobility covers pedestrian speed, and high mobility covers high speed on highways or fast trains (60 km/h to ~250 km/h, or more).

Temp 8/110-02159033

Some Thoughts on 3G Evolution

From ITU-R Doc. 8/110-E,Radio Assembly, 2 - 6 June 2003

NEW WORK ITEMS

3X CDMA (WIDEBAND)

ADVANCED RF

OFDM STUDY

MIMO, SMART ANTENNA

IP MOBILITY

QOS

Etc.


Satellite

MacrocellMicrocell

UrbanIn-Building

Picocell

Global

Suburban

Basic TerminalPDA Terminal

Audio/Visual Terminal

Realizing the Vision will requirea well-coordinated regional/global effort.

Thank you...

Progress of ITU-T SSG: “IMT-2000 and Beyond” 3GPP2 Vision Ad-hoc 18 August, 2003 Seoul, Korea...

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