Impacts of NGN and
Future Direction
Chae Sub Lee
Vice-Chairman of ITU-T SG13
Vice-Chairman of ITU-T FG IPTV
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
Content
1. Impacts of NGN
2. Ultimate Goal of User
3. Future Study Direction
4. Conclusion
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
1
1. Impacts of NGN
Definition of NGN
ITU-T
Rec.
Y.2001
Next Generation Network (NGN):
a packet-based network able to provide
telecommunication services and able to make use of
multiple broadband, QoS-enabled transport
technologies and in which service-related functions
are independent from underlying transport-related
technologies.
It enables unfettered access for users to networks and
to competing service providers and/or services of
their choice. It supports generalized mobility which
will allow consistent and ubiquitous provision of
services to users.
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
1. Impacts of NGN
NGN in 4 words…
• by Fixed
• by Mobile
• by Wireless
NGN == Broadband
Broadband Managed
Managed IP
IP Network
Network
NGN
• for Services
• for Businesses
• for Players
• for Users
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
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1. Impacts of NGN
Overall NGN Architecture
• NGN= Service Stratum + Transport Stratum
• Basic Functions= User + Control + Management
Applications
ANI
Management Functions
Application Support Functions & Service Support Functions
Service Control
Functions
Service User
Profiles
Service stratum
Network Attachment
Control Functions
Resource and
Admission
Control Functions
Transport User
Profiles
End-User
Functions
Other
Networks
Transport Control Functions
Transport Functions
UNI
NNI
Transport stratum
Control
Media
ITU-APT Workshop, Bangkok Thailand, 16~17
March 2007
Management
1. Impacts of NGN
Towards for Agnostic …
Pre-NGN
Video
Services
(TV, movie,
etc)
Telephone
Services
Data
Services
(WWW,
e-mail, etc)
Video
Services
Network
Telephone
Services
Network
Data
Services
Network
Transport Agnostic
Access Agnostic
Service-based Pol./Reg.
Voice Internet Video
MM
Access Network
Provider Domain
Pol.
Pol.
Reg.
ANP 1 (DSL)
Service/Application
Provider Domain
SP1SP2SP3
SPm
ANP 2 (DSL)
IP (Future Packet ?) Platform
ANP 3 (Opt)
Pol.
Pol. X
Reg. x
xDSL/Optic based FixedFixed-Mobile
User
ANP N (Cable)
Resource-based Pol./Reg.
CNP
1
CNP
2
CNP
3
Core Network
Provider Domain
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
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1. Impacts of NGN
Addition of Service Components
Applications
Service Stratum
Application Support
Functions and
Service Support Functions
Application
Functions
S. User
Profile
Functions
Service
Control
Functions
Other NGN
Service Components
IPTV Service
Component
Legacy
Terminals
Legacy
Terminals
IP Multimedia
Component
IP Multimedia
&PSTN/ISDN
Simulation
Service Component
GW
Network Access
T.User
User Network Attachment
Control Functions
Profile
ProfileAttachment
Functions
(NACF)
Functions
Functions
GW
Customer
Networks
Access
Network
Access Transport
Functions
Functions
NGN
Terminals
Edge
Functions
Resource and Admission
Control Functions
(RACF)
Other Networks
PSTN / ISDN Emulation
Service Component
Core
Transport
Core
transport
Functions
Functions
Transport Stratum
End-User
Functions
Figure 1.
Future revision of Figure 8/Y.2012: NGN components including IPTV service component
* Ref: NGN-GSI Output Document T05-NGN.GSI-0067R1
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
1. Impacts of NGN
Enabling for Convergence
Business/Application oriented projects
Limited
Services
BE IP
Limited BB
FMC
N
G
N
•Simple linkage btw layers
•Simple business relationships
•Simple players
RFID
IPTV
Others
Managed IP
Converged Broadband
•Simple linkage btw layers with dynamics
•Diverse and Flexible business relationships
•Diverse business models and players
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
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1. Impacts of NGN
NGN Architecture Enabling RFIDs/USN
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
1. Impacts of NGN
NGN Architecture Enabling IPTV
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
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1. Impacts of NGN
Use case of NGN Architecture: Enabling IPTV
Transport (Access and Core) Agnostic
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
2. Ultimate Goal of User
Physical Communication Infrastructure
Full Converged
MM Terminal
Radio/Wireless
Spectrum:
fi
Wave Length:
λi
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
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2. Ultimate Goal of User
Logical Communication Infrastructure
Mobile Phone Nr
Fixed Phone Nr
User Id:
Earth-KoreaMan:LeeChaesub
-19yy-mm-dd
WiFi/WiBro Id
- Certified by UN -
Cable/IPTV Id
Internet Id
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
2. Ultimate Goal of User
Business Communication Infrastructure
Fixed Phone
Mobile
Phone
One Integrated
Bill
WiFi
WiBro
Internet
Cable/IPTV
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
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3. Future Study Directions
Clue for the Future Study
Convergence should be a critical framework for Future
• Vision: Any Time, Any Where, Any Services and Any Devices
• Fixed Mobile Convergence should be the 1st instantiation
• Any information/services over any transport infrastructures:
VoDSL, TVoMobile, etc. (because of transport agnostic)
Changing Role of current network model; U-/C-/M•
•
•
•
•
IP is the point for service offerings: Everything ov. IP ov. Anything
Key role of below IP is providing connections; BW, QoS etc
Signaling among distributed network element, not end-to-end
Many different IDs for different services; E.164, Names, IP Add etc.
User expectation for Management is changing; no interest
for connection or operation, only for services and businesses
New Paradigm: New model of
User/Control/Management
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
3. Future Study Directions
Key theme of Future User Plane: Media Processing
System Management and Security
C
Media Provision
Media
Source
B
User
Command
End
System
D
G
Media Control
A
E
F1
Media Delivery
F2
A: Media Stream, B: Media Request, Descriptive Metadata/Media Info etc.
C: Rights Management Interaction, G: Access Control System
D: Service Interaction Message
E: Media Location information, Billing information, Media Control Command, etc.
F1: Presentation Control Signal, F2: Media Stream
*Reference: FG IPTV-DOC-56:
IPTV Architecture
ITU-APT Workshop,
Bangkok Thailand, 16~17 March 2007
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3. Future Study Directions
Key theme of Future Control Plane: Identity Processing
Customer ID
User ID
Service ID
Mobile
Phone Nr
Comm. ID
Content
Owner ID
Provider ID
Family 1
Fixed
Phone Nr
User Id:
Earth-KoreaMan:LeeChaesub
-19yy-mm-dd
WiFi
WiBro
Id
Family 2
- Certified by UN -
Cable/
IPTV
Id
Family 3
Media ID
Session ID
TCP/UDP
Port ID
IP Address
ATM/Ether
net ID
MAC ID
E.164 ID
Internet
Id
Family 4
Line ID
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
3. Future Study Directions
Key theme of Future Management Plane: ABC Processing
Accounting:
Billing:
Charging:
C
D
Mobile Ph
B
Mobile Ph
A
MobileFixed
Ph
MobileFixed
Ph Ph Ph
Fixed Ph
WiFi/WiBro
Fixed Ph
WiFi/WiBro
WiFi/WiBro
IPTV
WiFi/WiBro
IPTV
IPTV Internet
IPTV Internet
Internet
Internet
Providers
Set of functions required for Usage Metering,
Charging and Billing (ITU-T Rec. Q.825)
Administrative function to prepare bills to
service customers, to prompt payments, to
obtain revenues and to take care of
customer reclaims (ITU-T Rec. Q.825)
The set of functions needed to determine the price
assigned to the service utilization (ITU-T Rec. Q.825)
4
Mobile Ph
Mobile Ph
1
MobileFixed
Ph
MobileFixed
Acc Ph Ph
Fixed Ph
WiFi/WiBro
Fixed Acc
WiFi/WiBro
WiFi/WiBro
WiFi/WiBro IPTV
IPTV
Acc
IPTV Internet
IPTV Acc
Internet
Internet
2
3
Internet Acc
4
3
Mobile Ph
2
Mobile Ph
1
MobileFixed
Ph
MobileFixed
Chg Ph Ph
Fixed Ph
WiFi/WiBro
Fixed Chg
WiFi/WiBro
WiFi/WiBro
WiFi/WiBro IPTV
IPTV
Chg
IPTV Internet
IPTV Chg
Internet
Internet
Int.
Bill
(1 or 2)
: User
Conv.
Internet Chg
Billing and Bill
Family Charging
Family Account
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
9
3. Future Study Directions
Change Views: Extend “Quality of Service”
Meaningful QoS for Multimedia over NGN
“Everything
Everything over Intelligent Seamless IP”
IP
Quality of
Personalization
• One
One-stop Service
• Service AAA
• Personalized service
Open/Control
Quality of Security
Quality of Mobility
Quality of Media
• Network AAA;
• RT Mobility control
• Service Continuity
control
• Security support
• End
End-End QoS
• QoS Monitoring
• Service Policy handover
Terminal, User,
Mobility, Access etc.
Need further study in more details
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
3. Future Study Directions
Confirmed Killer-App over Convergence
Network Convergence: Internet, NGN etc.
Service Convergence: FMC, IPTV etc.
Terminal Convergence: PC, PDA, Int .Phones etc.
Business Convergence: Triple Play, Q Play etc.
Fundamental Core Service:
Voice
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
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3. Future Study Directions
Status of Voice Quality
During the last 20 years, big improvement in Use of Voice
But during the last 20 years, no improve in Quality of Voice
Cost/Price oriented policy, but change to Quality based
7 kHz
Audio
Class
3.1 kHz
Audio
Class
2G
3G
VoIP
ISDN
PSTN
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
NGN(?)
3. Future Study Directions
Status of Voice Codecs
PSTN: G.711
Mobile communication: AMR for 3GPP, EVRC for 3GPP2
VoIP: G.729, G.729.1, G.711, G.723.1, G.726, ILBC
NGN ?
Too many speech codecs prevent VoIP interoperability.
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
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3. Requirements for Future Voice
s
24kbp
0
11
10110
0
10
ps 1
kb 110
32 01..00
1..00
Voice (Audio) over Convergence
bps
16k 1..00
1011
All
AllIP
IP
Network
Network
0
11
10
s
bp
1
10
8k
ps
kb 00
24 1001..
00
Premium Voice over various converged infrastructure
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
4. Conclusion
Framework Model for Future Study
Mang.
Target of
Future
Study
User: RFID
Mang.
User: Voice
Management
User: TV
CAC/Resource
Agnostic
Control
Control
Control
NACF
RACF
Transport
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
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Thank you for
your attention !!!
ITU-APT Workshop, Bangkok Thailand, 16~17 March 2007
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