Evolution and Migration to
IMT-2000 & Systems beyond
2.1.6: Mobile Network Evolution
to NGN
ITU-BDT Regional Seminar on IMT-2000
for CEE and Baltic States
Ljubljana, Slovenia
1-3 December 2003
John Visser, P.Eng.
Chairman, ITU-T SSG “IMT-2000 and Beyond”
Phone:
Fax:
Mobile:
Email:
+1-613-763-7028
+1-613-765-6257
+1-613-276-6096
jvisser@nortelnetworks.com
Abstract: Mobile Network
Evolution to NGN
Change is necessary. As we manage our lives more and more on
telecommunications networks, we increase the traffic they must
carry. This increases costs but does not drive up revenues as
connectivity becomes a commodity. Today, we have different
networks for different services, different networks for different
enterprises. We have boundaries within service providers that
cause different services to be provided by different platforms
without something ensuring the overall consistency of the user
experience. At many levels the transformed network needs to
eliminate these boundaries. This is essential both for end user
satisfaction and for operator profitability.
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 1
1
Outline
•
•
•
•
What do end users and operators want?
Mobility is a key dimension of the NGN
Review: ITU-T SSG: forward looking areas
Major shifts occurring
• Subscriber base
• What the access technologies can deliver
• Convergence of Telecoms, Data, Broadcasting
• Wireless access and network transformation
• Blending user devices
• Realizing the Vision
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 2
End Users Value ...
The
Multimedia
Experience
The
Freedom of
Mobility
Security &
Personalization
… for enhanced productivity
and user experience
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 3
2
Eliminate boundaries ...
Transformation
... to enable ubiquitous and
seamless solutions
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 4
Mobile Revolution is underway
Fixed Lines vs. Mobile Users, worldwide, millions
1'400
Mobile Users
1'200
Fixed Lines
1'000
800
600
400
200
0
1993
1995
1997
1999
2001
2003
Source: ITU World Telecommunication Indicators Database.
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 5
3
Forecasts
Many available!
• Example: Yankee Group, News Release 24 Jun 03:
• estimate 18.6 percent of world’s population currently has
mobile phones
• global wireless user base will increase 49% over next 4
years, reach 1.72 billion by 2007
• global cellular subscriber revenue will grow from $387
billion in 2002 to $584 billion in 2007, similar in value to
crude oil production
• Mobility is a key dimension of the NGN
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 6
Summary of SSG Mandate
•
Lead SG on IMT-2000 and beyond and for mobility
• Primary responsibility within ITU-T for overall network aspects of
IMT-2000 and beyond
•
To study:
•
•
•
•
•
•
•
Vision for IMT-2000 and Beyond (circa 2010)
Identification and globalization of IMT-2000 Family members
Support harmonization of evolving IMT-2000 Family members
Convergence of fixed and wireless networks
To assist developing countries in applying IMT-2000
Emphasis on strong cooperative relations and complementary
programs with SDOs, 3GPPs
Make use of provisional working procedures specific to SSG:
• Recommendation A.9: Provisional working procedures for SSG
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 7
4
SSG Mandate translated into
Study Questions
• Q.1/SSG
Service and network capability requirements and
network architecture (“Vision”)
• Q.2/SSG
• Q.3/SSG
NNI Mobility Management protocol
Identification of existing and evolving IMT-2000
Systems (“ID Systems”)
Interworking functions to be used with existing and
evolving IMT-2000 systems
Preparation of a Handbook on IMT-2000 (“Handbook”)
Harmonisation of existing IMT-2000 Systems
Convergence of fixed and existing IMT-2000 systems
(“Convergence”)
• Q.4/SSG
• Q.5/SSG
• Q.6/SSG
• Q.7/SSG
• Q.8/SSG
Special Study Group working procedures (“Procedures”)
(now deleted: work finished)
Details available at: http://www.itu.int/ITU-T/studygroups/ssg/questions.html
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 8
SSG: what we’re working on
Inter -system mobility
management
SSG
Key future core network
characteristics
End user
experience consistency
Q.2 & Q.6/SSG
Mobility Mgmt &
Harmonization
For consideration by:
Q.1/SSG
Vision
Operator
Operator
Inputs
Inputs
Q.3/SSG
ID Systems
Q.7/SSG
Convergence
Regional solutions
in a global context
Q.5/SSG
Handbook
Q.8/SSG
Procedures
Leveraging
the infrastructure
Work completed
Helping the
decision process
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 9
5
Large shifts taking place in
subscriber base!
•
Example: TCA Japan
Telecom Data Book 2003
• Ref:
http://www.tca.or.jp/eng/dat
abase/annual/2003/index.ht
ml
Fixed subscriber lines
Mobile subscribers
Paging
PHS
ISDN
1995
1996 1997
1998 1999
2000
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 10
2001
Large shifts taking place in
subscriber base!
•
Example: South Korea: >10 million broadband access as of Jan 2003
•
Ref: GSC -8 (Ottawa) Doc. 76 “Broadband Service Status and implementation issues
on VDSL in Korea”, Keun-ha Chin, Korea Telecom
14000
13,500
12000
10,000
(Unit : thousands)
10000
10,573
7,863
8000
VDSL Started
xDSL : 62%
6000
KT (4,742)
KT (5,053)
Hanaro(3,077)
Hanaro(2,896)
Thrunet (1,306)
Others (1324)
4,018
4000
2000
14
325
CATV : 37%
Thrunet (1,300)
Others (949)
ISDN : 1%
1998
1999
2000
2001
2002
2003
2004
2005
Oct. 2002 Jan. 2003
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 11
6
The Wireless Landscape
Wireless
WirelessWide
WideArea
AreaNetwork
Network
(WWAN)
(WWAN)
••
••
••
Metro/Geographical
Metro/Geographicalarea
area
“Always
“AlwaysOn”
On”Services
Services
Ubiquitous
public
connectivity
Ubiquitous public connectivity
with
withprivate
privatevirtual
virtualnetworks
networks
Mobility
Fixed/
Desktop
DECT
Bluetooth
Outside
Campus
0.1
1
HiperLAN2
802.11a
Walk
••
••
>3G
802.11b
Within
Campus
Fixed
••
••
CDMA2000 1X EV-DO
& UMTS
Walk
CDMA2000 1X
GSM/GPRS
Vehicle
Wireless
WirelessLocal
LocalArea
AreaNetwork
Network
(WLAN)
(WLAN)
10
Public
Publicor
orPrivate
PrivateSite
Siteor
orCampus
Campus
Enterprise
Enterprise/ /premises
premisesapplication
application
voice
&
data
network
extension
voice & data network extension
Nomadic
Nomadic/ /“pull”
“pull”services
services
NonNon
- licensed spectrum
Non-licensed
spectrum
LAN
100
Mbps
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 12
Looking forward: the Internet
and Telecoms Convergence
• PSTN designed for voice
• Data added by making it behave like voice (modems, ...)
• ISDN designed for both data and voice
• Voice treated as data using CS paradigm (2B+D, ...)
• Internet designed around “best effort” data transfer
(IP, ...)
• QoS, performance issues for voice, high quality audio, high
quality video, real time interactive applications
• can be addressed using a “managed” internet
• Major changes in data capabilities of access
interfaces
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 13
7
Convergence
• Internet, Broadcasting, Telephony, ...
TODAY
Consumer
Entertainment
Telecommunications
NEAR FUTURE
GII
Consumer
Entertainment
Computer
information
Telecommunications
Computer
information
AIM
Consumer
Entertainment
GII
Telecommunications
Computer
information
GII
Figure 5-1/Y.110 – GII is at the centre of
the threefold industrial convergence
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 14
The Wireless Packet Network
• Wireline Network
– Good for Voice, not Data
• Data Router Network
– Best Efforts
• Wireless Network
– Mobility
Wireless Packet Network
Attributes
• Voice over IP
• Universal Mobility
• Five 9’s Reliability for
Mission-Critical Applications
• Network-embedded Services –
VPN, QoS, Billing, ...
• Enable Consumer and Business
Services
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 15
8
What does this mean for the
IMT-2000 Core Network?
• Common CN solution: IP-based using IETF
protocols
• Integration of Wireless LANs into basic mobile
telecommunications paradigm
• Common issues to be dealt with:
•
•
•
•
•
QoS
Fraud/Privacy
CS (legacy) interworking
Charging
...
• Solution: do it on a common infrastructure
• But there are issues ...
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 16
IMS and Interworking
SIP/
SDP
IMT-2000 Family
Member A Network
IMT-2000 Family
Member B Network
SIP/
SDP
IP Network
AAUE
UEshould
shouldbe
beable
ableto
toset
setup
upaa
multimedia
session
with
a
UE
multimedia session with a UEin
in
another
anothernetwork,
network,and
andshould
shouldbe
be
able
ableto
toroam
roamto
toother
othernetworks.
networks.
ISP
(e.g., WLAN)
SIP/
SDP
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 17
9
Enhanced End User Experience:
Blending User Devices
• PC, phone(s) and PDA: different user interfaces to
the same network-based application
• Common, network-based directory for:
•
•
•
•
Phone numbers
Buddies & presence
Email address book
All applications
• Just one address to reach the user
• Unified, network-based, user profile applying to all
terminals
• E.g., set presence location, (call routing preferences), etc.,
on any terminal and it applies to all
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 18
The Un-Wiring of the Future
Mobility / WWAN
• A Million nodes @ $50k
Nomadic / Mesh / WLAN
• Millions of Nodes @ $100
Sensor / Ad-hoc / WPAN
• Billions of Nodes @ $1
… connected through the Wireless Packet
Network
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 19
10
Network Transformation
Existing
Gaming
Console
• Multiple networks
• Simple devices
• Disparate services
PDA
Home
Computer
Home Office
Phone
Business
Mobile
Office
Computer
Transition
• Converged packet network
• Multimedia devices
• Linked services
TV / PVR
Simplify
Office
Phone
Transformed
Network Profile
• Dynamic packet/
optical network
• Secure multimedia services
• Ubiquitous broadband
• Integrated functionality
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 20
Common infrastructure
Call Feature
Servers
Legacy Networks
Media
Gateway
Mobility
Servers
IP Network
Application &
Content Servers
Multiple Mobile
Access Standards
Fixed MM Access
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 21
11
Transformed Network Architecture
ISV
Apps
Voice
Access
Service
Edge
Content
Switching
Applications
Media
Interactive
Multimedia
Policy
Services
Security
Packet
Mobility
QoS
IP VPN
Optical
Subscriber
Control
LAN
Broadband
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 22
Transformed Network Architecture
Platforms
ISV
Applications
Apps
Voice
Access
Client
Service
Edge
Media
Network
Services
Content
Switching
Policy
Security
Wireless
Access
Interactive
Multimedia
Services
VoIP
Multiservices
Packet
Packet
Mobility
QoS
Multiservice
IP VPN
LAN
Optical
Optical
Element Management
Subscriber
Control
Broadband
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 23
12
Some Key Work Areas for
Realizing the Vision
••
••
••
••
••
••
••
••
SERVICE ENABLING ENVIRONMENT
Voice
Voicequality
quality&&functionality
functionality
Presence
Presencetechnology
technology
Application
Applicationintegration
integration
Server
Server&&database
databaseintegrity
integrity
Security
Security
Multi-service
Multi-servicenetworking
networking
Carrier
Carriergrade
gradescaling,
scaling,performance,
performance,reliability
reliability
Mobility
Mobilityservices
services
••
••
••
••
COMMON OPTICAL &
PACKET FOUNDATION
•• Multi-service
Multi-serviceaccess
access
•• High
Highspeed
speedhigh
highdensity
density
•• Lambda
Lambdamanagement
management
•• Photonic
Photonicswitching
switching
NETWORKING ATTRIBUTES
System
• Interoperability
Systemavailability
availability
Hardware
• Distributed software
Hardwareavailability
availability
Real-time
• Management integration
Real-timesoftware
software
Scalability
• Solution integration
Scalability
Much interesting and challenging work still to be done!
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 24
The Transformed Network
•
•
•
•
•
•
Always on
Anytime, anywhere and in any form
Voice and multimedia
Self service, intuitive
Simpler for the end user
Secure, trusted and reliable
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 25
13
IMT-2000 and Beyond...
Global
Satellite
Suburban
Macrocell
Urban
Microcell
In-Building
Picocell
Basic Terminal
PDA Terminal
Audio/Visual Terminal
Realizing the Vision will require an ongoing
and well-coordinated global effort.
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 26
Thank you!
ITU-BDT Regional Seminar on IMT-2000 - CEE and Baltic States, Ljubljana, Slovenia - 27
14