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NGN Next Generation NetworkMSD conference, Lisbon, October2005.Stephan Berg, Deutsche Telekom Headquarters
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Konzernentwicklung NGN Next Generation Networks.ppt 2
Agenda.
Principles of telecommunication networks
Existing networks
Drivers and motivation for NextGeneration Network
Basic concept of Next Generation Network
-requirements
-functions and structures
Next Generation Network benefits
Transition to Next Generation Network
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Konzernentwicklung NGN Next Generation Networks.ppt 3
Principles of telecommunication networks.Using the same access line, circuit and packetnetworks utilize different mechanism to provide
services and to share resources.
9%
Circuit switched network (schematic)
Packet switched network (schematic)
access line
access line
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Konzernentwicklung NGN Next Generation Networks.ppt 4
Existing networks.Today operators run different networks which areinterconnected.
e.g. GSM e.g. PSTN e.g. Internet
CentralF
unctions
Transport
Control
Services
Transport
Control
Services
Transport
Control
Services
AccessCentralF
unctions
Transport
Control
Services
Transport
Control
Services
Transport
Control
Services
Access
fixed voice
circuit switched
monolithic structure
mobile voice
circuit switched
monolithic structure
different services
packet switched
modular structure
Variety of networks
9%
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Konzernentwicklung NGN Next Generation Networks.ppt 5
Drivers and motivation for NGN deployment.External drivers and internal motivation putpressure on operators NGN deployments.
develop new services easierand faster
enhance flexibility
reduce operationalexpenditures
replace of old platforms at
their end of lifecycle
massive growth of datatraffic
flat growth of voice market
massive access competition
maturity of IP technology
open standards andarchitectures
Deployment of Next Generation Network
9%
Operators MotivationDrivers
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Konzernentwicklung NGN Next Generation Networks.ppt 6
Basic concept of Next Generation Network.A Next Generation Network can be defined by sixkey criteria.
NGNconcept
integrationof existing
infrastructure
packet-orientednetwork
supportbroad
variety ofservices
opennessand
flexibilityregarding
newservices
separationinto
differentlayers
using openinterfaces
applicationfocused -access
independent
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Konzernentwicklung NGN Next Generation Networks.ppt 7
Basic concept of Next Generation Network.An IP-based NGN is able to support a broadvariety of services.
Variety of services
Voice over IP
Data
Multimedia
http://images.google.de/imgres?imgurl=web.sanyo.de/bilder/bilddb/SANYO_hifi_portables_Dc_088ct.jpg&imgrefurl=http://web.sanyo.de/support/press_img1.asp%3Fkath%3Dhifi_portables&h=865&w=1417&prev=/images%3Fq%3DHifi%2BAnlage%26start%3D20%26svnum%3D10%26hl%3Dde%268/9/2019 21C Telecommunications
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Konzernentwicklung NGN Next Generation Networks.ppt 8
Basic concept of Next Generation Network.Next Generation Network has to fulfill the specificcharacteristics of telecommunication services.
provide adirectory
ensureprivacy/securit
y
manage thetransfer /
delivery of thecontent
collect usagedata to ensure
servicefulfillment and
to allow forbilling
establishcommunicatio
n to thedesiredpartner
characteristics oftelecommunicatio
n services
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Konzernentwicklung NGN Next Generation Networks.ppt 9
Basic concept of Next Generation Network.Monolithic networks evolve towards a layeredNGN architecture with open interfaces.
Application Plane enables theprovisioning of services andprovides the control and logic forthe execution of services
Control Plane controls theelements of the network,establishes and tears downmedia connections
Transport Plane is responsiblefor the transport of media and
signaling messages Management Plane covers
network management ensuringservice fulfillment, serviceassurance and billing
Access Networks connectcustomer networks or terminalswith the components of the NGN
Planes and functionsNGN Planes
Access Networks
TransportPlane
ApplicationPlane
ControlPlane
Managem
entPlane
Value Added Service Creation
Packet Based Transport
Basic control service
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Konzernentwicklung NGN Next Generation Networks.ppt 10
Next Generation Network benefits.NGN has the potential to become thecommunication network of the future.
device independence
access independence
service variety
enhanced usability
new revenue potential
improves time-to-market
easy integration of 3rd partyservices
one platform for voice, data andmultimedia
Customer benefitsNext Generation Network
Operator / provider benefits
IP
Access Network
SDP
SDP
SDP
SDP
IMS
TransportPlane
ApplicationPlane
ControlPlane
Managem
entPlane
DSLAM Radio
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Konzernentwicklung NGN Next Generation Networks.ppt 11
Transition to Next Generation Network.Overlay approach is an option that allows for asmooth and flexible transition to NGN .
PSTN and PLMN remain the keyproduction platforms for purevoice services
NGN overlay platform is used to
serve business and consumercustomers with integratedservices
NGN overlay will be furtherdeveloped in line with marketrequirements
Substitution will not be startedas long as financial assessmentis yielding no incentive ortechnical reasons (e.g. failurerate of components or lack ofsystem support) makes itnecessary
DescriptionNGN overlay
SDP
IP
CS - Domain
IMS
OtherPSTN /
PLMN
IP-Phone
ILLUSTRATIVE
PS - Domain
SDH
OtherNGN
WWW
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Konzernentwicklung NGN Next Generation Networks.ppt 12
Contact.