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TOT to NGN
By
Dr. Kamthon Waithayakul
EVP, Office of Engineering
TOT Plc.
1
British Telecom: Moving to 21CN
From this:


2
To this:
Today – customers must connect to multiple networks to get
what they want
Tomorrow – customers connect how they wish, services
consistent across different access technologies, cost
leadership
France Telecom: one IT & network
Shared Information System
Service Platforms
Control Layer
IP / MPLS Backbone
Gigabit Ethernet
Transmission
Customer
Access Network
Aggregation
Core/Backbone networks
One IT & Network is our strategy toward NExT objectives
3
TOT’s exiting network
SCP
PSTN & ISDN
E
X
E
X
NSC
E
X
E
X
E
X
E
X
E
X
IP
SCE
I
N
SSP
STP
NSC
SMS
STP
STP
STP
NSC
NSC
NSC
NSC
NSC
NSC
NSC
NSC
NSC
NSC
E
X
E
X
NSC
E
X
E
X
E
X
E
X
E
X
E
X
E
X
E
X
E
X
E
X
E
X
E
X
E
X
E
X
E
X
Metro
LAN
ATM
BRAS
Gate
Way
DDN
DDN
4
SDH
ISP
Standard NGN Architecture
3rd Party Application Providers
Service
Value
Added
Services
Data
Services
Content
Services
Wholesale
Services
Service Control functions
Other Networks
Transport
Security / QoS
Network Management / NG-OSS / BSS
Voice
Services
Transport Control functions
IP/MPLS Transport
Edge functions
Copper Access
(MSAN)
Fibre Access
(PTP, PTMP)
Wireless Access
(WiMAX, WiFi)
Mobility
(2G/3G)
CPE
CPE
CPE
CPE
Technology for the ONE service layer
Industry standard
architecture
Fixed Voice plus
Broadband
Build a NGN to
deliver voice and
broadband
services
Fixed Voice, Broadband
and Multi-Media
Services
Build a NGN to deliver
voice and multi-media
services
Add Web 2.0 services
from hosting centres
Soft-switch / H248
Soft-switch /SIP
Fixed Voice, Broadband,
and Multi-Media and
Mobile
Build a NGN to deliver fixed
and mobile voice and multimedia services.
Have an access-agnostic
architecture
Have an integrated services
architecture
IMS
Where the vendors are going
Sensible if moving to mobile
TOT’s Future Network
Network
management
OSS
Email
Applications
MMS
Presence
Conference
Server
IMS
Control
Video/
Music Gaming Web
Policy
Portal
SoftSwitch
NMS
Core
QoS
TOT IP
Enabled
IP
CORE
Network
Mobile-IP/
GPRS
Telephone
PSTN
PBX
MG/TG
computer
Access
METRO LAN
WiMax
SS7
SG
MSAN
Home Gateway / Customer Premises
Gateway
Home
7
TV Set
top
P
C
Game
Console
Video Phone
A practical initial implementation
Legacy Networks
Service Node
IN
RCU
3rd Party
Applications
ENUM
User
Data
Interworking
Exch
Voice
Soft-switch
DSLAM
Consumer
VoIP
APP
SME
VoIP
APP
Other
APP
Core Session Control
BGW
MGW
H.248
Hosting
Centre
(IPTV
ICT)
IP
Base band
POTS
Softphone
NTE
MSAN
Backhaul
SBC
IP
Core
BRAS
Internet
MGW
PSTN
Vision
Service
Edge
Service
Edge
Future implementation
Service Node
IN
3rd Party
Applications
ENUM
Consumer
VoIP
APP
PSTN
Mobile
Core Session Control
BGW
Hosting
Centre
(IPTV
ICT)
IP
H.248
Base band
POTS
Softphone
User
Data
NTE
MSAN
Backhaul
SBC
IP
Core
BRAS
Internet
MGW
PSTN
Vision
Service
Edge
Service
Edge
Access Network
3G Mobile)/WiMAX
Access Node
Street MSAN
GE
xDSL
MSAN
xDSL
FTTN
PTP
Copper for
Voice and Data
(ADSL)
PTMP
e.g. GPON
Fibre for Enterprise
Fibre / Ethernet
MSAN
11
MINI DSLAM
12
Access Network
3G Mobile)/WiMAX
Access Node
Street MSAN
GE
xDSL
MSAN
xDSL
FTTN
PTP
Copper for
Voice and Data
(ADSL)
PTMP
e.g. GPON
Fibre for Enterprise
Fibre / Ethernet
Conclusion
14