Next Generation Networks architecture by ITU-T Robert W ojcik - - PowerPoint PPT Presentation
Next Generation Networks architecture by ITU-T Robert W ojcik Department of Telecommunications 21st January 2009, Krak ow, Poland Outline The beginnings 1 The definition 2 Fundamental characteristics of NGN 3 NGN architecture 4
Robert W´
Department of Telecommunications 21st January 2009, Krak´
1
The beginnings
2
The definition
3
Fundamental characteristics of NGN
4
NGN architecture
1
The beginnings
2
The definition
3
Fundamental characteristics of NGN
4
NGN architecture
1
The beginnings
2
The definition
3
Fundamental characteristics of NGN
4
NGN architecture
1
The beginnings
2
The definition
3
Fundamental characteristics of NGN
4
NGN architecture
1
The beginnings
2
The definition
3
Fundamental characteristics of NGN
4
NGN architecture
the Internet was designed for simple connectivity of best-effort traffic explosion of data traffic strong demand for new multimedia services increasing demand for mobility
ITU-T Workshop on IP Networking and Mediacom in Geneva, April 2001 ITU-T Workshop “NGN: what, when and how”, Geneva, July 2003 no common understanding of what an NGN is! So why did ITU-T take lead, when there was no consensus?
ITU-T Workshop on IP Networking and Mediacom in Geneva, April 2001 ITU-T Workshop “NGN: what, when and how”, Geneva, July 2003 no common understanding of what an NGN is! So why did ITU-T take lead, when there was no consensus?
ITU-T Workshop on IP Networking and Mediacom in Geneva, April 2001 ITU-T Workshop “NGN: what, when and how”, Geneva, July 2003 no common understanding of what an NGN is! So why did ITU-T take lead, when there was no consensus?
several institutions began to work on NGN
Focus group on NGN (FGNGN) was created under ITU responsibility
European Telecommunications Standards Institute (ETSI) Alliance of Telecommunications Industry Solutions (ATIS) China Communications Standards Association (CCSA) Telecommunication Technology Association (TTA) Telecommunication Technology Committee (TTC) 9th Global Standard Collaboration (GSC)
several institutions began to work on NGN
Focus group on NGN (FGNGN) was created under ITU responsibility
European Telecommunications Standards Institute (ETSI) Alliance of Telecommunications Industry Solutions (ATIS) China Communications Standards Association (CCSA) Telecommunication Technology Association (TTA) Telecommunication Technology Committee (TTC) 9th Global Standard Collaboration (GSC)
1
The beginnings
2
The definition
3
Fundamental characteristics of NGN
4
NGN architecture
GLOBAL INFORMATION INFRASTRUCTURE Y.100-Y.899 INTERNET PROTOCOL ASPECTS Y.1000-Y.1899 NEXT GENERATION NETWORKS Y.2000-Y.2899 Frameworks and functional architecture models Y.2000-Y.2099 Quality of Service and performance Y.2100-Y.2199 Service aspects: Service capabilities and service architecture Y.2200-Y.2249 Service aspects: Interoperability of services and networks in NGN Y.2250-Y.2299 Numbering, naming and addressing Y.2300-Y.2399 Network management Y.2400-Y.2499 Network control architectures and protocols Y.2500-Y.2599 Security Y.2700-Y.2799 Generalized mobility Y.2800-Y.2899
ITU-T Recommendation Y.2001, “General overview of NGN”, 12/2004 ITU-T Recommendation Y.2011, “General principles and general reference model for Next Generation Networks”, 10/2004 ITU-T Recommendation Y.2012, “Functional requirements and architecture of the NGN”, 09/2006 ITU-T Recommendation Y.2121, “Requirements for the support of flow-state-aware transport technology in NGN”
Identified by ITU-T Recommendation Y.2001, Section 8
General framework and architectural principles Architecture models for the NGN End-to-end QoS Service platforms Network management Security Generalized mobility Network control architecture and protocols Service capabilities and service architecture Interoperability of services and network in NGN Numbering, naming and addressing Disaster and relief communication capabilities
ITU-T Rec. Y.2001 decoupling between transport and service generalized mobility GII (Global Information Infrastructure) NGN
ITU-T Rec. Y.2001 (12/2004)
Next Generation Networks (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-T Rec. Y.2001 (12/2004)
Next Generation Networks (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-T Rec. Y.2001 (12/2004)
Next Generation Networks (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-T Rec. Y.2001 (12/2004)
Next Generation Networks (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-T Rec. Y.2001 (12/2004)
Next Generation Networks (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-T Rec. Y.2001 (12/2004)
Next Generation Networks (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.
Economic aspects
promote fair competition encourage private investment define a framework for architecture and capabilities to be able to meet various regulatory requirements provide open access to networks
Economic aspects
promote fair competition encourage private investment define a framework for architecture and capabilities to be able to meet various regulatory requirements provide open access to networks
Economic aspects
promote fair competition encourage private investment define a framework for architecture and capabilities to be able to meet various regulatory requirements provide open access to networks
Economic aspects
promote fair competition encourage private investment define a framework for architecture and capabilities to be able to meet various regulatory requirements provide open access to networks
Social aspects
ensuring universal provision and access to services promoting equality of opportunity to the citizen promoting diversity of content, including cultural and linguistic diversity recognizing the necessity of worldwide cooperation with particular attention to less developed countries
Social aspects
ensuring universal provision and access to services promoting equality of opportunity to the citizen promoting diversity of content, including cultural and linguistic diversity recognizing the necessity of worldwide cooperation with particular attention to less developed countries
Social aspects
ensuring universal provision and access to services promoting equality of opportunity to the citizen promoting diversity of content, including cultural and linguistic diversity recognizing the necessity of worldwide cooperation with particular attention to less developed countries
Social aspects
ensuring universal provision and access to services promoting equality of opportunity to the citizen promoting diversity of content, including cultural and linguistic diversity recognizing the necessity of worldwide cooperation with particular attention to less developed countries
1
The beginnings
2
The definition
3
Fundamental characteristics of NGN
4
NGN architecture
The list
packet-based transfer decoupling of service provision from transport support for a wide range of services
real time, streaming, non-real time and multimedia
broadband capabilities with end-to-end QoS generalized mobility interworking with legacy networks via open interfaces unrestricted access by users to different service providers converged services between fixed/mobile independence of service-related functions from underlying transport technologies support of multiple last-mile technologies
The list
packet-based transfer decoupling of service provision from transport support for a wide range of services
real time, streaming, non-real time and multimedia
broadband capabilities with end-to-end QoS generalized mobility interworking with legacy networks via open interfaces unrestricted access by users to different service providers converged services between fixed/mobile independence of service-related functions from underlying transport technologies support of multiple last-mile technologies
Decoupling of service provision from transport, Y.2011
NGN transport NGN services e.g., voice telephony services (audio, fax, etc.) e.g., Data services (WWW, e-mail, etc.) e.g., Video services (TV, movie, etc.) CO-CS, CO-PS and CLPS layer technologies
The list
packet-based transfer decoupling of service provision from transport support for a wide range of services
real time, streaming, non-real time and multimedia
broadband capabilities with end-to-end QoS generalized mobility interworking with legacy networks via open interfaces unrestricted access by users to different service providers converged services between fixed/mobile independence of service-related functions from underlying transport technologies support of multiple last-mile technologies
The list
packet-based transfer decoupling of service provision from transport support for a wide range of services
real time, streaming, non-real time and multimedia
broadband capabilities with end-to-end QoS generalized mobility interworking with legacy networks via open interfaces unrestricted access by users to different service providers converged services between fixed/mobile independence of service-related functions from underlying transport technologies support of multiple last-mile technologies
End-to-end QoS in NGN
Flow-state-aware (FSA) transport technology 4 classes of service (service contexts)
ARS, GRS, MRS, VRS
flow-based differentiation stateful aggregations in-band and out-of-band signaling
The list
packet-based transfer decoupling of service provision from transport support for a wide range of services
real time, streaming, non-real time and multimedia
broadband capabilities with end-to-end QoS generalized mobility interworking with legacy networks via open interfaces unrestricted access by users to different service providers converged services between fixed/mobile independence of service-related functions from underlying transport technologies support of multiple last-mile technologies
Generalized mobility
Generalized mobility The ability for the user or other mobile entities to communicate and access services irrespective of changes of location or technical environment. The degree of service availability may depend on several factors including Access Network capabilities, service level agreements between the user’s home network and the visited network (if applicable), etc. Mobility includes the ability of telecommunication with or without service continuity.
Generalized mobility, Y.2012
Home Core NGN-1
User-1
Visited Access Home Core NGN-2
User-2
Generalized mobility, Y.2012
Visited Core NGN
User-1
Visited Access Home Core NGN-1
The list
packet-based transfer decoupling of service provision from transport support for a wide range of services
real time, streaming, non-real time and multimedia
broadband capabilities with end-to-end QoS generalized mobility interworking with legacy networks via open interfaces unrestricted access by users to different service providers converged services between fixed/mobile independence of service-related functions from underlying transport technologies support of multiple last-mile technologies
Interworking with legacy networks via open interfaces
NGN Other NGNs …… IWF IWF Internet IWF PSTN IWF PLMN IWF
The list
packet-based transfer decoupling of service provision from transport support for a wide range of services
real time, streaming, non-real time and multimedia
broadband capabilities with end-to-end QoS generalized mobility interworking with legacy networks via open interfaces unrestricted access by users to different service providers converged services between fixed/mobile independence of service-related functions from underlying transport technologies support of multiple last-mile technologies
The list
packet-based transfer decoupling of service provision from transport support for a wide range of services
real time, streaming, non-real time and multimedia
broadband capabilities with end-to-end QoS generalized mobility interworking with legacy networks via open interfaces unrestricted access by users to different service providers converged services between fixed/mobile independence of service-related functions from underlying transport technologies support of multiple last-mile technologies
The list
packet-based transfer decoupling of service provision from transport support for a wide range of services
real time, streaming, non-real time and multimedia
broadband capabilities with end-to-end QoS generalized mobility interworking with legacy networks via open interfaces unrestricted access by users to different service providers converged services between fixed/mobile independence of service-related functions from underlying transport technologies support of multiple last-mile technologies
The list
packet-based transfer decoupling of service provision from transport support for a wide range of services
real time, streaming, non-real time and multimedia
broadband capabilities with end-to-end QoS generalized mobility interworking with legacy networks via open interfaces unrestricted access by users to different service providers converged services between fixed/mobile independence of service-related functions from underlying transport technologies support of multiple last-mile technologies
Network”
SP3 SPm SP2 Video services network xDSL/optic based fixed-mobile User ANP 1 (DSL) Access network provider domain ANP 2 (DSL) ANP 3 (Opt) ANP N (cable) CNP 1 CNP 2 CNP 3 SP1 Service/application provider domain Core network provider domain New policy regulation environment (horizontal) Video services (TV, movie, etc.) Telephone services network Telephone services Pre-NGN Data services network Data services (www, email, etc.) Resource-based pol./reg. Service-based policy/regulation Voice Internet Video MM Pol. reg.
IP (future packet ?) platform New business environment (compositional)
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The beginnings
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The definition
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Fundamental characteristics of NGN
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NGN architecture
“NGN Architecture: Generic Principles, Functional Architecture, and Implementation”
Transport functions Service user profiles Application functions ANI Services control Service stratum Transport stratum UNI End-user functions Other networks Management functions Third party application providers NNI Transport user profiles Service control functions Network attachment control functions Access functions Access transport functions Edge functions Control Media Management Gateway functions Resource and admission control functions Transport control functions Media handling functions Core transport functions
“General overview of NGN,” Recommendation ITU-T Y.2001, December 2004. “General principles and general reference model for Next Generation Networks,” Recommendation ITU-T Y.2011, October 2004. “Functional requirements and architecture of the NGN,” Recommendation ITU-T Y.2012, September 2006. “Requirements for the support of flow-state-aware transport technology in an NGN,” Recommendation ITU-T Y.2121, January 2008.
ITU-T NGN focus group release 1: target environment, services, and capabilities,” Communications Magazine, IEEE,
Global Information Infrastructure in ITU-T,” IEEE Communications Magazine, vol. 40, pp. 98–101, July 2002.
generic principles, functional architecture, and implementation,” IEEE Communications Magazine, vol. 43,
Network,” IEEE Communications Magazine, vol. 43, pp. 34–41, October 2005.
ITU-T NGN QoS Control,” Communications Magazine, IEEE,