May 9 -13, 2004 GSC-9 Seoul, Korea Slide 1
GSC9/JOINT_004
John VisserPhone: +1 613-763-7028Fax: +1 613-765-6257Mobile: +1 613-276-6096Email: [email protected]
Evolving IMT-2000 Standards
May 9 -13, 2004 GSC-9 Seoul, Korea Slide 2
IMT-2000 Revolution is Underway
• Mobile overtakes fixed on a global basis
Source: http://www.itu.int/osg/spu/spunews/2003/flash/september.html
May 9 -13, 2004 GSC-9 Seoul, Korea Slide 3
IMT-2000 Revolution is Underway
• Strong advantages over first building ubiquitous fixed infrastructure in developing markets
Source: http://www.itu.int/osg/spu/spunews/2003/flash/september.html
May 9 -13, 2004 GSC-9 Seoul, Korea Slide 4
What comes next?
• Alternatives:– Could just focus only on mobile networks and
how they evolve (needs to be done anyway)– Could look just at the integration of fixed and
mobile networks (will happen anyway)• Should look at the general case:
convergence of traditional fixed networks, mobile networks, information technology and broadcast
May 9 -13, 2004 GSC-9 Seoul, Korea Slide 5
End Objective
• Provide the best possible suite of services and capabilities to end users in a seamless and effortless manner– as straightforward as plugging an appliance
into an electrical outlet?• The right standards framework and the
right standards within that framework will be essential
Graphics from: http://www.goinginstyle.com/gis/body_category.asp?dept_id=2
May 9 -13, 2004 GSC-9 Seoul, Korea Slide 6
4G?
• Many talk very easily about “4G”– everyone’s Marketing Dept. touts “4G”
products• Reality:
– a continuum of capabilities which extend and enhance 3G, expected to include:
• higher data rates (including WLAN integration)• improved roaming• true inter-system mobility management
May 9 -13, 2004 GSC-9 Seoul, Korea Slide 7
Out
side
Cam
pus
Fixed
Walk
Vehicle
With
in C
ampu
s
Fixed/Desktop
Walk
Mobility
CD
MA
2000 1X EV-DO
& U
MTS
HiperLA
N2
802.11a, g LAN
802.11b
Wireless Landscape
Wireless Local Area Network (WLAN)
• Public or Private Site or Campus• Enterprise / premises application voice
& data network extension• Nomadic / “pull” services • Non-licensed spectrum
>3G
Mbps1 10 1000.1C
DM
A2000 1X
GSM
/GPR
S
DECT
Bluetooth
Wireless Wide Area Network (WWAN)
• Metro/Geographical area• “Always On” Services• Ubiquitous public connectivity with
private virtual networks
May 9 -13, 2004 GSC-9 Seoul, Korea Slide 8
User’s Perspective
• 1 user: 1 terminal
• 1 user: n terminals
• n users: 1 terminal
Reality
Increasing service content: voice to multimedia
Incr
easi
ng M
obili
ty
Mobile
PDA
Mobile
Laptop
Expectation
May 9 -13, 2004 GSC-9 Seoul, Korea Slide 9
Operator’s Landscape
• “Fast” mobility: mobile terminal with seamless voice, low speed data hand-off
• “Nomadic” mobility: session in one hot spot; move between adjacent hot spots
• Ad hoc networks: use spare resources of neighbours for dynamic connectivity
• Terminal mobility: plug into any access• User mobility: use any terminal
May 9 -13, 2004 GSC-9 Seoul, Korea Slide 10
Beyond IMT-2000
• Heterogeneity of installed base means capabilities will not be uniformly available
• “4G” will not be uniformly deployed, so:– need to characterize the local capabilities– terminals need to adapt to local environment
• Much is possible but ideals that could be achieved must be tempered by the reality of what can be paid for
May 9 -13, 2004 GSC-9 Seoul, Korea Slide 11
W+/W- Integration
• How should this be approached?– from a fixed network perspective: add
functions to also support mobile users?– from a wireless network perspective: what is
needed to also support fixed users?• Points of view
– fixed network specialists tend to start from first
– wireless network specialists tend to start from second
May 9 -13, 2004 GSC-9 Seoul, Korea Slide 12
W+/W- Integration: perspective change?
• Are we just (re-)using some wireless network solutions to provide similar services in a similar way to fixed users?
• Or, are we missing a key element?– wireless networks have long been treated as
a means of access to fixed network services– now starting to see fixed networks being used
as a means of access to wireless networks• Are the roles reversing? or just equalizing?
May 9 -13, 2004 GSC-9 Seoul, Korea Slide 13
W+/W- Convergence Underway
• ITU-T:– Rec. Q.1761 “Principles and Requirements for
Convergence of Fixed and Existing IMT-2000 Systems”
– Q.F/13 “NGN mobility and fixed-mobile convergence”– Q.K/16 “Mobility for Multimedia Systems and
Services”– Multiple Qs in SSG
• ETSI TISPAN: applying 3GPP Rel. 6 IMS• Others certainly working subject
May 9 -13, 2004 GSC-9 Seoul, Korea Slide 14
WWAN and WLAN Integration
• Concept: based on what user is doing and on availability of local resources, switch seamlessly between WLAN and WWAN to optimize both user experience and resource utilization– users demanding high data rates more likely
to be nomadic: use WLAN where available– voice users could be served by either: could
use WLAN to conserve WWAN resources
May 9 -13, 2004 GSC-9 Seoul, Korea Slide 15
WLAN and Fixed Integration
• Mesh networks– utilize concept to optimize backhaul
• Ad hoc networks– minimize infrastructure requirements for low
user density or in an emergency where infrastructure damaged or destroyed
May 9 -13, 2004 GSC-9 Seoul, Korea Slide 16
Convergence
Architectural
Services
Infrastructure
Internet Intranet
CDMAGSM UMTS
GGSN
PDFHLR/HSS
SGSN
PDSNMGW
PSTN
Call ServerMGCF
HAPDG
Call Server
R4 BICN
Internet Intranet
WLANDSL/Cable
PDSNMGW
PSTN
Call ServerMGCF
PDG
Call Server
Application Servers
Internet Intranet
Application Servers
CDMAGSM UMTS WLAN DSL/Cable
GGSN
PDFHLR/HSS
SGSN
PDSNMGWPSTN
Call ServerMGCF
HAPDG
CSCF/SCMIntelligent Infrastructure
R4 BICN
Access Independence
Packet Based
This animated chart is provided as three
discrete charts at the end of this package.
May 9 -13, 2004 GSC-9 Seoul, Korea Slide 17
NGN
• General case: convergence of fixed and mobile networks, data and broadcast– “Global Information Infrastructure”
• GII now referred to as “Next Generation Network”– Do standards for IMT-2000 and “systems
beyond” become NGN standards?
May 9 -13, 2004 GSC-9 Seoul, Korea Slide 18
GII is all about convergence
Internet, Broadcasting, Telephony, ...
Telecommunications
Computer information
Consumer Entertainment
GII
TODAY
NEAR FUTURE
Telecommunications
Computer information
Consumer Entertainment
GII
AIM
TelecommunicationsComputer
information
Consumer Entertainment
GII • Y-series Recommendations: GII• Per Fig. 5-1/Y.110 – GII is at the centre of
the threefold industry convergence
The NGN 2004 Project will establish implementation guidelines and standards for the realization of Next Generation Networks based on GII concepts.
May 9 -13, 2004 GSC-9 Seoul, Korea Slide 19
Conclusion
• IMT-2000 and systems beyond:– must ensure we address convergence starting
from the right perspective– mobility is an integral part of and the starting
point for NGN– studies require identification and review of
pre-conceptions and assumptions to test their validity
May 9 -13, 2004 GSC-9 Seoul, Korea Slide 20
Convergence - Non-animated - Step 1
Architectural
Internet Intranet
CDMAGSM UMTS
GGSN
PDFHLR/HSS
SGSN
PDSNMGW
PSTN
Call ServerMGCF
HAPDG
Call Server
R4 BICN
Internet Intranet
WLANDSL/Cable
PDSNMGW
PSTN
Call ServerMGCF
PDG
Call Server
May 9 -13, 2004 GSC-9 Seoul, Korea Slide 21
Convergence - Non-animated - Step 2
Architectural
Services Internet Intranet
CDMAGSM UMTS
GGSN
PDFHLR/HSS
SGSN
PDSNMGW
PSTN
Call ServerMGCF
HAPDG
Call Server
R4 BICN
Internet Intranet
WLANDSL/Cable
PDSNMGW
PSTN
Call ServerMGCF
PDG
Call Server
Application Servers
May 9 -13, 2004 GSC-9 Seoul, Korea Slide 22
Convergence - Non-animated - Step 3
Architectural
Services
InfrastructureInternet Intranet
Application Servers
CDMAGSM UMTS WLAN DSL/Cable
GGSN
PDFHLR/HSS
SGSN
PDSNMGWPSTN
Call ServerMGCF
HAPDG
CSCF/SCMIntelligent Infrastructure
R4 BICN
Access Independence
Packet Based