Brain Storming on NGN
21 May 2001
Chae-Sub, LEE
1
Contents
1.
2.
3.
4.
5.
6.
Scope and ToR
Service requirements
Environments analysis
Continuation of GII
Implementation issues
Role of ITU-T and SG 13
2
1. Scope and ToR
 Make common understanding of what is next step
 Beyond IP
Target Time
 Continue with IP
 Try to sketch it brief as requirements
 Services and Environments
 Horizontal and Vertical views
 Find contribution area and work items
 Standard areas
 Other SDOs
 Role of ITU-T and SG 13
3
2. Service requirements
Moving Trend of Service Requirements
FAX
Image/Video
WEB
Telex
Data
FAX
Vo IP
Vo ATM
Voice
FAX
Voice
Vo MPLS
Vo DSL
Voice
mid 1970 ~ 1980
mid 1980 ~ 1990
Vo Ethernet
mid 1990 ~ today
4
Service Requirements in Near Future
Tele-gaming
Multimedia
Chatting
?
VHE
(Ethernet)
or
(others)
Impact
Packet
Voice
Others (?)
CAMCORDER with Ethernet
5
Requested Target Services for Next
Until 2004
after 2004 ~ 2008
6
3. Environments Analysis
Change of Environment
Full Open and Competition Environments
Telecom. Business
Tele-Broadcasting Business
Broadcasting Business
Data
inc.
Data
Voice
Integrated Service
Voice
End
to
End
Client
to
Server
User friendly control
Circuit based
Packet based transport
Electronic based
Optic based transmission
Integrated Telecommunication Infrastructure
7
Network Evolution Trends
• Optical Infrastructure
– Capacity imperative
• Packet Based Transport & Switching
– Multi-service flexibility
• Location of Intelligence (Core vs Edge)
– QoS and Bandwidth Granularity/Control
• Convergence of Control & Management Aspects
– E.g., Dynamic routing vs protection switching
• Interworking with Legacy Systems
8
Towards Tele-Broadcasting
Media Integrated
Multimedia
Voice
Service/Business Integrated
Multimedia
Internet-based
Multimedia
Data
Telecom-based
Multimedia
Video
Broadcas.-based
Multimedia
Impacting Areas
Business Model
Refer. Point of Interc.
Service Requirements
Opera. & Provis. Guide
Simplified Features of Wireless World
Regulation
Regulation
Tele-Broadcasting
World
Standard
Standard
Simplified Features of Wire World
9
Market Changes and its Push
Circuit based
50
Penetration (%)
Packet over
40
Circuit
30
20
Packet based
10
Circuit over
Packet
1996
1997
1998
1999
2000
2001
2002
2003
Fixed telephone service
Cellular & PCS
Internet service users
10
 User Terminal Environments of Today
Multimedia PC
Data inc.
Everything
Phone
FAX
PC FAX
• Real Time DATA
• Non-Real Time DATA
PC
TV
PC TV
11
Expected Future Transition Trend
Past : Seper. of Voice & Data Transp.
Circuit Switch.
Access Capa.
Circuit Switch.
Transp. Capa.
Packet Switch.
Transp. Capa.
Present : Sep. of V & D Access
Circuit Switch.
Access Capa.
Packet Switch.
Access Capa.
Circuit Switch.
Transp. Capa.
Packet Switch.
Transp. Capa.
xDSL / FTTx
Future : Integration of V & D Access and Transp.
Near Future : Integration of V & D Transport
Circuit Switch.
Access Capa.
Packet Switch.
Access Capa.
Circuit Switch.
Transp. Capa.
Packet Switch.
Transp. Capa.
Packet Switch.
Access Capa.
Packet Switch.
Transp. Capa.
VoIP / VToA
12
 Changing Role of IP
Functional components of IP
Transp of Cont. Sig.
Transp. of Inform.
M
M
IP based Control (IP Dial-tone)
Functional components of IP
C
U
C
Transp. of Inform.
M
IP based Multimedia (?)
Current Role of IP
C
U
Transp. Of Mang. Sig.
IP based Management
Future Role of IP
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4. Continuation of GII
Recognized unique name for Information Society
without implementation of Technologies
GII
64 kbps based
ISDN
ATM/BISDN
IP based
network
Multi-Protocol
based network
NGN
14
 Expected Evolution Trend toward GII
Present
Past
App.a
App.b
App.c
App.a
App.b
App.c
App.B
Net.1
Net.2
Net.3
Net.1
Net.2
Net.3
Net.4
Narrowband
App.a, b, c
App.a, b, c, B
App.B
Net.2
NGN
Platform
IP Platform
IP Platform
Net.1
Broadband
Net.3
Near future
Net.4
Net.1
Net.2
Net.3
Net.4
Future
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5. Implementation Issues
Server based Configuration
Service /
Application 1
Service /
Application 2
Service /
Application 1
Service /
Application 2
Service /
Application 3
Service /
Application 4
Service /
Application
Service /
Application 4
Service /
Application 3
Naming
Policy
Server
Server
Subscrib.
Server
Feature
Server
Resource
Server
Server (Middleware)
Network
Net. A
Net. B
Net. C
Net. D
Connectivity Network
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Diversity of Access Technologies
Management
Platform
- CMIP
- SNMP
- JAVA
- CORBA
- DCOM
Network
Management
Policing
Adaptation
Switching & Routing
- IP
- MPLS
- ATM
Routing
Accessing
Addressing - ISDN
- ADSL
- IPv4, v6
- Cable Modem
- E.164
- FLC
- NSAP
- FTTH
Multiplexing
- IP
- ATM
- F/R
- SDH/PDH
- WDM
Backbone Switching Network
Transmission
- ATM
- SDH
- WDM
Switching
Access
Network
Access Switching
Network
Backbone Transmission Network
Policing
Adaptation
17
C.S. LEE’s stupid idea No. 1 to be implemented in NGN
New Standards on Access
ADSL
Voice + DATA
Data inc. Voice
Full DATA
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Points of Intelligence
Application
Server
A.N
Core
Network
64 kbps CM/PM
Bearer Network
A.N
QoS 3
A.N
QoS 2
QoS 1
3.1 kHz Audio
Bearer Network
Access
Net. Part
~ 2 Mbps FM
Bearer Network
Policing
Server
QoS 1
A.N
ATM
Bearer Network
IP
Bearer Network
• Same service but different path
• Use current bearer networks in
Multimedia era with integrated
Access Network
19
C.S. LEE’s stupid idea No. 2 to be implemented in NGN
New Signaling Mechanism or Protocol
Core Net
(Various
Bearer)
Integrated
Access Unit
Intelligent
Access Server
(e.g. NGN Set Top Box)
20
Complication of Networking (1)
ISP X*
(Network Operator B*)
PoP
Radius
Server
ISP X
:
ADSL
NT
D
S
L
A
M
Network Operator A
PPP enc. in PPPoE
termination : PPPoE
Service
Selection
Gateway
Radius
Server
( L2TP)
Network Operator B
PoP
ISP X, X*
PPP enc. in L2TP ISP X
termination: PPP ISP X
termination: PPP ISP X*
21
Complication of Networking (2)
:
D
S
L
A
M
ADSL
NT
IP
BB-PoP
IP
IP
IP
PPP
Ethernet
Ethernetphysics
PPP
PPP
Ethernet
Ethernet
AAL
AAL
IP
ATM
ATM
PPP
ADSL-physics
STM-1physics
physics
22
C.S. LEE’s stupid idea No. 3 to be implemented in NGN
IP
IP
IP
IP
PPP
PPP
PPP
PPP
Ethernet
Ethernet
Ethernet
Ethernet
AAL
AAL
AAL
ATM
IP
IP
PPP
ATM
physics
Need to make simple structure
And think about others (beyond IP)
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Possible Convergence Model
of Tele-Broadcasting
Regulator
Program
User
Operator Provider
Relations
Enterprise Model  Regulation
Telegaming
New Applications and their
Service Interworking
Networking Technologies
and their Adaptations
Interworking between two
Infrastructures and
their convergence
New Technologies
and their Products
EComm.
Interac.
TV
Web
TV/FM
TV
Mail
TV
Internet
IP Platform or Others
Broadcasting
Infra.
Telec.
Infra.
Computer/Consumer Technologies
Structural Model of Convergence
24
C.S. LEE’s stupid idea No. 4 to be implemented in NGN
Continue IP Platform
or New Platform
Broadcasting
Infra.
Telecom.
Infra.
Convergence /
Integration
Optic
DBS
Analysis of mutual impacts
25
6. Role of ITU-T and SG 13
• Application of IP technology into Telecom infra and
• specify Interworking between IP and Telecom
service/network
• New architecture for full Packet based infrastructure (inc.Voice)
• Migration path from Circuit based to Packet based infra (inc. Interworking)
• Service and network capabilities for providing Packet based services
• New access technology, OAM and Performance study based on full Packet infra
26
 Network Evolution and its required Functional Study Areas
ITU-T
Activity
Service classification and definition
Functional Model
64kbps based ISDN
Ref. Config. Model
I Series
Rec.
UNI
NNI
Archi.
&
Spec.
ATM based ISDN
Multi-protocol
Networks
Y Series
Recommendation
U/C/M-pl. related Protocol
QoS/NP
P
R
M
OAM&P
Addressing/Naming
Interworking
NGN
Accounting, Charging & Billing
27
C.S. LEE’s stupid idea No. 5 to be implemented in NGN
SDO1
SDOn
ITU
ITU
SDO1
SDOn
SDO1
NGN Project
SDOn
Which type ?
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Thank you for
your attention
Standard Bodies
(ITU, IETF, ATM-F……)
MPLS
MPOA
IPOA
29