dariusz.rozanski@szczesliwice.net

• Why NGN
• NGN Basic Features
• Conversion Strategies towards NGN
• Standards & Regulations
Subject: Evolution towards the Next Generation Network dariusz.rozanski@szczesliwice.net

• User’s growing demands for enhanced multimedia services, integrated applications of real time traffic and high data volumes, high speed internet, video on demand, mobile communications, everywhere, all the time
• Need for advanced features of flexibility and reliability, unfettered access to competing providers and services, generalized mobility
• Existing switching, optical, satellite and wireless technologies must be integrated into high quality, distributed, multi-service networks – Fixed
Mobile Convergence FMC
Subject: Evolution towards the Next Generation Network dariusz.rozanski@szczesliwice.net

• Why NGN
• NGN Basic Features
• Conversion Strategies towards NGN
• Standards & Regulations
Subject: Evolution towards the Next Generation Network dariusz.rozanski@szczesliwice.net

• ITU-T Y.2001
• Services become independent from underlying transport details
• Packet-based transfer (mainly IP)
• Horizontal configuration: From sausage to sandwich; each layer provides reusable elements to the other layers
Subject: Evolution towards the Next Generation Network dariusz.rozanski@szczesliwice.net

1.
Media Gateway
• ‘Translator’ between media formats of the access networks and the packet NGN
2.
Call Server
• Control functionalities over the Media Gateway, supports AAA, routing and signaling, performance management and administration
3.
Media Server
• Allows applications to interact with each other, responsible for compression, transcoding etc
4.
Application Server
• Control, registration support, encryption procedures
Subject: Evolution towards the Next Generation Network dariusz.rozanski@szczesliwice.net

1. Transport stratum
•
The first 3 layers of the traditional OSI 7-layer basic reference level are involved
•
Data transfer (mainly IP), control and management of transport resources
2. Service Stratum
• Handles the applications to be operated between peer entities
• Provision of functions that transfer service-related data
Each stratum comprises one or more layers, where each layer is composed of a separate plane for data, control and management
Subject: Evolution towards the Next Generation Network dariusz.rozanski@szczesliwice.net

• Leading IP features:
•
•
• collaborative interaction
• data retrieval
• online sales
• e-commerce
• remote control
• tele-action telemetry distant device management
• Multimedia capabilities:
• content delivery
• video on demand
• video streaming
• video-telephony
• VoIP
• TV distribution
• TV broadcasting
• TV on demand
• audio / web / video conferencing
Subject: Evolution towards the Next Generation Network dariusz.rozanski@szczesliwice.net

• advanced web browsing
• accelerated downloads
• broadband high speed internet
• bandwidth on demand
•
QoS on demand
• triple play
•
3G applications
• VPN applications
• push-to-talk
• push-to-view
• group chat
• instant messaging
• multiparty interactive gaming
• e-learning
• file sharing
• broadcast & multicast
Subject: Evolution towards the Next Generation Network dariusz.rozanski@szczesliwice.net

• Why NGN
• NGN Basic Features
• Conversion Strategies towards NGN
• Standards & Regulations
Subject: Evolution towards the Next Generation Network dariusz.rozanski@szczesliwice.net

• NGN proper deployment calls for a carefully planned conversion strategy.
• The new network has to be highly adaptive. Acceptance and interoperability must be guaranteed before the market takes the risk to invest into NGN.
• During the transition period, NGN must allow for a mix of conventional circuit switched communication services and future IP services.
• Compliance with regulatory requirements and standardization norms is prerequisite.
Subject: Evolution towards the Next Generation Network dariusz.rozanski@szczesliwice.net

• The migration procedure will comprise consolidation and expansion prior to network replacement.
• Deployment of a few large centers with increased switching capacity and high speed interfaces.
• Addition of new nodes to upgraded existing ones in the access level.
• Integration of voice and data into common applications at the IN service control point.
• Introduction of an overlay broadband access NGN to address new customers and services to the existing infrastructure, while allowing simultaneous operation of both networks.
Subject: Evolution towards the Next Generation Network dariusz.rozanski@szczesliwice.net

• Addition of new gateways and upgrade of existing ones by adding functionality (e.g. to the DSLAMs).
• Emergence of novel IP applications.
• Replacement of outdated equipment or equipment that is not compatible with new services and cannot be transformed to NGN.
Subject: Evolution towards the Next Generation Network dariusz.rozanski@szczesliwice.net

• Why NGN
• NGN Basic Features
• Conversion Strategies towards NGN
• Standards & Regulations
Subject: Evolution towards the Next Generation Network dariusz.rozanski@szczesliwice.net

• RTP (Real Time Protocol) for the carrying of voice, audio and media through IP
• SDP (Session Description Protocol) for multimedia sessions
• SIP (Session Initiation Protocol) for signaling, discovery and session management
• Collaboration with ITU-T for the definition of NGN interworking regulations, security issues, media gateway control, transport, service development, authentication, authorization and accounting
Subject: Evolution towards the Next Generation Network dariusz.rozanski@szczesliwice.net

• Study Group 13: overall responsibility for IP work
• NGN-GSI (Global Standards Initiative): diverse aspects of services, capabilities, control, migration of current technology to NGN and future packet based network requirements
• Rec. ITU-T Y.2261: Evolution towards NGN
• Rec. ITU-T Y.1541: Quantifying user QoS needs in IP terms
Subject: Evolution towards the Next Generation Network dariusz.rozanski@szczesliwice.net

• TISPAN (Telecoms & Internet converged Services & Protocols for
Advanced Networks): definition of a European view of NGN, releases on NGN architecture
• NGN Implementation Group: major input to 3GPP IP work
Subject: Evolution towards the Next Generation Network dariusz.rozanski@szczesliwice.net

• NGN is a promising technology which emphasizes on internet based services, IP applications and mobility support.
• Strategic planning is indispensable to guarantee interoperability of
NGN with diverse systems.
• Gradual smooth migration from existing networking to innovative NGN demands coordinated work from the industry and standardization worlds.
Subject: Evolution towards the Next Generation Network dariusz.rozanski@szczesliwice.net

Name:
Surname:
Company:
Phone:
E-mail:
Evangelia
Georgiadou
Hellenic Telecommunications Organization (OTE) S.A.
+302106114695 egeorgiadou@oteresearch.gr
dariusz.rozanski@szczesliwice.net

dariusz.rozanski@szczesliwice.net