Korea
Telecom
Architectures & Interworking
in ITU-T SG13
14 May 2001
Chae-Sub, LEE
(Korea Telecom)
1
Korea
Telecom
Contents
1.
2.
3.
4.
5.
Scope of WP 2/13
Questions in WP 2/13
Future Evolution Trend
Role & Activities of WP 2/13 study
Vision of WP 2/13
2
Korea
Telecom
1. Scope of WP 2/13
ARCHITECTURE
GII
64 kbps based
ISDN
ATM/BISDN
IP based
network
Multi-Protocol
based network
NGN
INTERWORKING
3
Korea
Telecom
Scope and impacts of Architecture Work
•PC based Multimedia
•Mobile communication
•Home/Personal video
•Netizen
Service requirements
and its Provision
ToP
Down
Long
Term
•Principles
•Identification of Resources
•Assignment to Functional Group
•Identification of Reference Points
•Specifying required Capabilities
•Business Model
•Logical Model / Framework
Architecture Work
•Functional Model
•Implementational Model
•Specification of capabilities
•Scenarios
• Router/switch
• Soft switch
• wireless access, xDSL/WDM
Facility Network
Bottom
Up
Short
Term
4
2. Questions in WP 2/13
Korea
Telecom
Question
Title
1/13
Principles, Requirements, Frameworks and Architectures for an
Overall Heterogeneous Network Environment
5/13
Network Interworking including IP Multiservice Networks
10/13
Core Network Architecture and Interworking Principles
13/13
Interoperability of Satellite and Terrestrial Networks
14/13
Access Architecture Principles and Features at the Lower Layers
for IP-Based and Other Systems
16/13
Telecommunication Architecture for an Evolving Environment
5
2. Future Evolution Trend
Korea
Telecom
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
6
Korea
Telecom
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
7
Korea
Telecom
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
8
Korea
Telecom
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
9
Korea
Telecom
Extension of Core Network Functions
Traffic
Policing
Media
Adaptation
Resource
Arranging
Brokering
Brokering
Switching
Transmission
Past
Switching
Routing
Switching
Routing
Transmission
Transmission
Today
Near Future
10
Korea
Telecom
Diversity of Access Technologies
Management
Platform
- CMIP
- SNMP
- JAVA
- CORBA
- DCOM
Network
Management
Policing
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
11
Korea
Telecom
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
12
Korea
Telecom
4. Role and Activities of WP 2/13 Study
Interconnection
• Develop Framework Architecture for RPOI
• Identify Reference Point of Interconnection
• Specify Attributes and Requirements of RPOI
Architecture
• Framework Architecture of GII and Principle
• Develop Telecom. Archit. For Evolv. Environ.
• Study of New Reference Model
• Develop Framework of IP based Network
• Develop Automatic Transport Net. Archit.
• Develop Access Network Architecture
• Specify Network Capabilities for IP and others
Interworking
• Develop Framework for Interworking
• Specify Interworking Functions btw. Different
Networks and Services
13
Framework for RPOIs (Refer Rec. Y.140)
Mu ltip le R o le ,S in g le P la y e r
d
S in g le R o le ,Mu ltip le P al y e rs
q
L DN
Ma n a g e m e n t
O th e r
L o n g D ista n c e N e w
t o rk s
d
q
S P B/ ro k e r
C la s3
x
T ra n sitN o d e
NOT E 2
Korea
Telecom
c
S P /B ro k e r
C la s3
L o n g D ista n c e N e tw o rk
L N Ma n a g e m e n t
q
q
q
c
c
O th e rL o c a lN e tw o rk s
NOT E 1
C o mmo n
L DN
a n Ld N
Mg m t.
a
q
x
e
b
q
S P /B ro k e r
C la s2
c
S P C la s1
x
S P /B ro k e r
C la s3
L o c a lN e tw o rk
L o c a lN o d e
NOT E 3
A N Ma n a g e m e n t
q
q
b
b
O th e A
r c c e sN e tw o rk s
NOT E 1
a
q
e
b
S P /B ro k e r
C la s2
a
S PC la s1
x
A c c e sN e tw o rk
0-317T
C N Ma n a g e m e n t
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q
a
a
C u sto m e rN e tw o rk
S P C la s1
c a ry u se rp la n e a n d c o n tro lp la n e in fo rm a tio n
C o n c e p ut a Rl e ef re n c e P o in t
fo rIn te cr o n n e c iot n c( R P I)
NOT E 1
c o a x ai
A T M,
NOT E 2
NOT E 3
S( e vr ci e
-T h sci o
cl a b el
F
-T ra n sitS
-In ita lp o
No d e
u ld
w
, eri
R ,IP
w itc
in to
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el
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h
fa
se ,e
as n
tc .
an
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d o/ rR o u et r
h me n t
c a lS w itc h )
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RP
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ot.
RP
htf e
RP
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c a ry m a n a g e m e n tp la n e in fo rm a tio n
aI P o ni to cf o
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T ra
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u
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tMa n a
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sw itc h
d se rv
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itN
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new
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g e m e n tsy tes m T/ MN
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14
Korea
Telecom
Information Communication Architecture (Rec.Y.130)
•
identify the functions and behaviors between the user and network facilities
in terms of middleware services ;
•
ensure adequate de-coupling between end user and network technologies;
•
define functions and behavior of middleware components;
•
identify points at which open interfaces might be defined.
Contact Agent
Locates party
profiles and
defines
communication
requirements
Party
Identification
Exchange Agent
Matches end-point
capabilities and
applies
transformations
across dissimilar
media
Coordinates
communication
session management
services and defines
transport
requirements
Session
Management
Transport Agent
Negotiates and
secures transport
services that meet
the needs of the
communication
session
Transport
Selection
15
Korea
Telecom
Work plan of Automatic Switched Transport Network
Consent at this May SG 13 Meeting
G.astn
ASTN Architecture
Discovery
Signaling
Routing
ASTN Control Plane
CAC
Link
Restoration
management
Transport
G.ason
G.ndisc
G.sdisc
G.dcm
Modified
existing or
G.otnrtg
G.otncac
G.otnlm
Modified
existing or
G.otnres
G.959.1/
G.709/G.798/
G.dcn/etc
Consent at this October SG 15 Meeting
16
Korea
Telecom
Interworking between Telecom Networks and IP based Network
Ref. Rec. Y.1401
• Transport Plane Interworking
• Control Plane Interworking
• Management Plane Interworking
17
5. Vision of WP2/13
Korea
Telecom
• 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
18