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NGN - Next Generation Networks

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					NGN – Next Generation Network
MSD conference, Lisbon, October
2005.
Stephan Berg, Deutsche Telekom Headquarters
Agenda.




          Principles of telecommunication networks
          Existing networks
          Drivers and motivation for Next Generation
          Network
          Basic concept of Next Generation Network
           - requirements
           - functions and structures
          Next Generation Network benefits
          Transition to Next Generation Network




                                             Konzernentwicklung · NGN – Next Generation Networks.ppt   1
Principles of telecommunication networks.
Using the same access line, circuit and packet networks
utilize different mechanism to provide services and to
share resources.
                      Circuit switched network (schematic)




        access line




                      Packet switched network (schematic)




        access line




                                                 Konzernentwicklung · NGN – Next Generation Networks.ppt   2
Existing networks.
Today operators run different networks which are
interconnected.
                                           Variety of networks

 e.g. PSTN                                e.g. GSM                                             e.g. Internet




                                               Central Functions
      Central Functions



                            Services
                             Services                                Services
                                                                      Services
                            Services                                 Services
                               Control                                  Control
                              Control
                              Control                                  Control
                                                                       Control

                              Transport
                              Transport                                Transport
                                                                       Transport
                             Transport                                Transport

                          Access                                   Access




 fixed voice                              mobile voice                                         different services
 circuit switched                         circuit switched                                     packet switched
 monolithic structure                     monolithic structure                                 modular structure


                                                                               Konzernentwicklung · NGN – Next Generation Networks.ppt   3
Drivers and motivation for NGN deployment.
External drivers and internal motivation put pressure on
operators’ NGN deployments.
             Drivers                                       Operators’ Motivation

  massive growth of data traffic                    develop new services easier
                                                    and faster
  flat growth of voice market
                                                    enhance flexibility
  massive access competition
                                                    reduce operational
                                                    expenditures
  maturity of IP technology

                                                    replace of old platforms at their
  open standards and                                end of lifecycle
  architectures



                       Deployment of Next Generation Network


                                                  Konzernentwicklung · NGN – Next Generation Networks.ppt   4
Basic concept of Next Generation Network.
A Next Generation Network can be defined by six key
criteria.

                             packet-
                             oriented
                             network
          integration of                       support
              existing                      broad variety
          infrastructure                     of services

                              NGN
                             concept
           application                       openness
            focused -                       and flexibility
             access                          regarding
          independent       separation      new services
                           into different
                           layers using
                                open
                             interfaces


                                             Konzernentwicklung · NGN – Next Generation Networks.ppt   5
Basic concept of Next Generation Network.
An IP-based NGN is able to support a broad variety of
services.
                      Variety of services




 Voice over IP




 Data




 Multimedia




                                            Konzernentwicklung · NGN – Next Generation Networks.ppt   6
Basic concept of Next Generation Network.
Next Generation Network has to fulfill the specific
characteristics of telecommunication services.

                                    establish
                                communication
                                 to the desired
                                     partner

                                                                       manage the
     provide a                                                          transfer /
     directory                                                        delivery of the
                                                                          content
                            characteristics of
                           telecommunication
                                services



                                                    collect usage
                                                   data to ensure
                  ensure
                                                         service
             privacy/security
                                                  fulfillment and to
                                                   allow for billing


                                                      Konzernentwicklung · NGN – Next Generation Networks.ppt   7
Basic concept of Next Generation Network.
Monolithic networks evolve towards a layered NGN
architecture with open interfaces.
                     NGN Planes                                    Planes and functions
 Application Plane
                                                        Application Plane enables the
      Value Added Service Creation                      provisioning of services and provides
                                                        the control and logic for the
 Control Plane                                          execution of services
             Basic control service                      Control Plane controls the elements




                                     Management Plane
                                                        of the network, establishes and tears
 Transport
                                                        down media connections
 Plane                                                  Transport Plane is responsible for
         Packet Based Transport
                                                        the transport of media and signaling
                                                        messages
                                                        Management Plane covers network
                 Access Networks                        management ensuring service
                                                        fulfillment, service assurance and
                                                        billing
                                                        Access Networks connect customer
                                                        networks or terminals with the
                                                        components of the NGN network and
                                                        aggregate the dedicated traffic type 8
                                                            Konzernentwicklung · NGN – Next Generation Networks.ppt
Next Generation Network benefits.
NGN has the potential to become the communication
network of the future.
          Next Generation Network                                          Customer benefits
 Application Plane
                                                                device independence
         …
       SDP       SDP
                     …
                           SDP
                               …        …
                                       SDP                      access independence
 Control Plane
                                                                service variety
                                                                enhanced usability
                                                                …



                                             Management Plane
                         IMS


 Transport
 Plane                                                              Operator / provider benefits
                          IP
                                                                new revenue potential
                 Access Network                                 improves time-to-market
                                                                easy integration of 3rd party services
              DSLAM            Radio
                                                                one platform for voice, data and
                                                                multimedia
                                                                …

                                                                    Konzernentwicklung · NGN – Next Generation Networks.ppt   9
Transition to Next Generation Network.
Overlay approach is an option that allows for a smooth
and flexible transition to NGN .
          NGN overlay                                            Description
                              ILL
                                 US
                                   TR
                                                PSTN and PLMN remain the key
                                        AT
                                          IVE   production platforms for pure voice
                CS - Domain                     services
                                  Other         NGN overlay platform is used to
                       SDH        PSTN /
                                  PLMN          serve business and consumer
                                                customers with integrated services
                                                NGN overlay will be further
                PS - Domain                     developed in line with market
                                  Other
          SDP                     NGN           requirements
                                                Substitution will not be started as
                      IMS
                                                long as financial assessment is
                                   WWW
                                                yielding no incentive or technical
                     IP
   IP-
  Phone                                         reasons (e.g. failure rate of
                                                components or lack of system
                                                support) makes it necessary


                                                    Konzernentwicklung · NGN – Next Generation Networks.ppt   10
Contact.




           Konzernentwicklung · NGN – Next Generation Networks.ppt   11

				
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Description: NGN is a "Next Generation Network" or the "New Generation Network" acronym. NGN softswitch core is able to provide voice, video, data and other multimedia integrated services, using open, standard architecture to provide rich next-generation network. Packet-based network to provide telecommunications services; use of multiple broadband QoS guaranteed capacity and transmission technology; its business-related functions independent of their transmission technology. NGN enables the user to free access to different service providers; NGN supports generalized mobility. It is a milestone in telecommunications history, marking the era of next-generation telecommunications networks.