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IEEE Next Generation Service Overlay Network – P1903 (NGSON). An enabler for an emerging vision for future service networks. 15 May 2009, Geneva. Rick Townsend, Huawei Technologies Chair, IEEE P1903 (NGSON). CONTENTS. Overview of NGSON charter process Technical overview of NGSON

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ieee next generation service overlay network p1903 ngson

IEEE Next Generation Service Overlay Network – P1903(NGSON)

An enabler for an emerging vision for future service networks

15 May 2009, Geneva

Rick Townsend, Huawei Technologies

Chair, IEEE P1903 (NGSON)



Overview of NGSON charter process

Technical overview of NGSON

Interactions with other bodies

Summary and contact information

ieee ngson p1903
Jan-2008, NGSON SG 2nd meeting

Feb-2008, PAR approved by IEEE ComSoc

27-Mar-2008, IEEE NesCom & SASB approval!

May-2008, WG 1st meeting

Jan-2008,PAR submitted to IEEE-SA

Mar-2008, 6 companies support NGSON


WG 2nd meeting

Feb-2008, PAR approved by IEEE-SA CAG





Dec 2008,

WG 3rd meeting

Feb-2007,Idea published to IEEE

NGSON (IEEE P1903) standardization

Working Group Stage

Study Group Stage

Mar-2009, WG 4th meeting

Sep-2007,NGSON SG 1st meeting


CMCC, KT, ETRI, Telcordia, RITT, Huawei, ZTE,etc.

The idea of NGSON (Next Generation Service Overlay Network) was published to IEEE-SA CaG by Huawei in Feb, 2007. As the originator of NGSON, Huawei facilitated this project, and gained supports from the ICT industry.

the ngson par


5.2 Scope:This standard describes a framework of Internet Protocol (IP)-based service overlay networks and specifies context-aware, dynamically adaptive, and self-organizing networking capabilities, including advanced routing and forwardingschemes, and that are independent of underlying transport networks.

*PAR – Project Authorization Request

some definitions

Some Definitions


(e.g., such as required QoS level, type of service such as real-time vs. data, nature of data stream such as I-frame vs. B-frame, and type of terminal such as TV HD monitor vs. PDA)

“dynamically adaptive”

(e.g., using locally derived information to discover, organize, and maintain traffic flows in the network within a local area network)

“self-organizing networking capabilities”

(e.g., developing network structures based on the needs of the customers and the capabilities of existing network structures)

the ngson par 2


5.4 Purpose:The purpose of this standard is to enable network operators, service/content providers, and end-users to provide and consume collaborative services by the deployment of context-aware, dynamically adaptive, and self-organizing networking capabilities.

the ngson par 3


5.5 Need for the Project: The amount of services and applications and their interaction are increasing at an exponential rate. This standard is needed to provide a better, more efficient way of providing these services and applications by means of context-aware, dynamically adaptive, and self-organizing networking capabilities.

document status

Document Status

Draft Frozen Released

White Paper 1Q09, Rel1

Requirements 4Q08 2Q09 2Q09

Architecture 2Q09 1Q10

Technical Specs  3Q10

Current work

architectural intent

Architectural Intent

Our intent is not to duplicate or re-do any work associated with existing architectures or the functions associated with those architectures, but to use what is available.

We intend to work outside of areas (but in cooperation with) currently being done by such bodies as ITU-T, TISPAN, OASIS, ATIS SON and PTSC, OMA, PARLAY, 3GPP, TMF.

use case issues

Use Case Issues

At 8:59pm, everyone changes channels. What happens to the network and how is it controlled?

At 3pm, the teenagers return home from school and start numerous peer-to-peer (P2P) networks. Which entity sets up the P2P networks and manages them?

evolution goals

Evolution Goals

Next generation: Loosely coupled service network architecture

Interconnect a large number of existing / emerging services and enablers

Enhance reusability of services / enablers worldwide

Cost-efficient creation of services

Interoperability of service / network operators, service providers worldwide …

network evolution

Network Evolution

1st gen.: Traditional Silo architecture

2nd gen.: Centralized SDP solution

Next Generation Service Overlay Network

key technologies 1

Key technologies (1)

Self-organized networking

Dynamically locate contents taking into account the location of the user as well as his/her access conditions.

Dynamically publish a range of services that may be accessed by a user, based upon his/her profile, and interests.

Dynamically (re)configure network devices, depending on the traffic load conditions, the provisioning of additional content servers, etc.

Dynamically notify users about the efficiency of a Quality of Service (QoS) and/or security policy.

key technologies 2

Key technologies (2)

Service composition and interaction

In order to respond to customer demand quickly and shorten the service development cycle, service networks need to offer an on-demand and flexible composition mechanism. Dynamically compose the related basic services to meet the requirement of users.

Research a common service interaction protocol, provide a solution for service interaction.

Service accounting

Based on service/resource rate registration, the system will support real-time charge negotiation during the service composition.

Accounting will support intelligent charging based on service chain.

key technologies 3

Key technologies (3)

Service & resource addressing

When the number of applications & service is very large on service network, NGSN will consider how quickly to discover target service for service interaction and service composition.

To provide a uniform resource search and access mechanism to reduce the cost of different access protocol and un-structured resource discovery.

Address types of network layer & service layer have multiple instantiations; in order to make services in heterogeneous networks and domains interact directly, NGSN will research a uniform service addressing mechanism.

Context-aware service routing

Research a new service routing based on the service addressing, it can provide context-aware service routing according to service provider’s policy. Service interaction and service management will be benefited by this feature.

key technologies 4
Key technologies (4)

Service registration

To support the context-based routing, the dynamic information about services can registry or de-registry to NGSON.

Service publication/discovery

To facilitate the user or service creator to find the existing services, NGSON provides a scalable way to obtain the interfaces, SLA, QoS and other static information about services.


Include user mobility and the session continuity

User change the attachment point across heterogeneous network

Handover from different service providers or different terminals

ngson collaborative environment

NGSON Collaborative Environment



Under Autonomous Managed Environment


Business process



Composite services, IMS/Web services

Service composition

Client technologies

UI, Web, SIP

Service components, Enablers

Networking Framework for collaborative Service plane, Network plane, Operations and management plane capabilities.


  • Capabilities of Service Operating Framework
  • Service Addressing, Routing
  • Service interaction facilitation functions
  • Discovery ,Registration
  • QoS, Security/Trust
  • Management and monitoring infrastructure
  • Capabilities for Network Elements
  • Large scale distribution of services
  • Context Awareness support
  • Dynamic policy enforcement capability
  • Self Organizing networking capability
  • QoS control and monitoring
implementation example of ngson
Implementation Example of NGSON

Key Aspects:

Context awareness, addressing, routing,

discovery, registration, composition, self-organization etc.

requirements 1

Requirements (1)

  • Network related functions
    • Support of network routing
    • Self-organization (3)
    • Adaptiveness
    • Identity
    • Resource virtualization (2)
    • Resource scheduling
  • Operation and management related functions
    • Manageability
    • FCAPS
    • Service management
    • Lifecycle management (2)
    • Inter-provider service
    • Open environment

General functions



Standard interfaces and protocols (2)

User privacy (2)

Interworking (2)


(n) Following a subject indicates number of requirements for that subject

requirements 2

Requirements (2)

Seamless mobility support

Context awareness (9)

Self-organizing (5)


Dynamic auto-configuration

Security (3)

Authentication (3)

Service brokering

Service coordination (3)

Service collaboration


  • Service related functions
      • Dynamic service routing (2)
      • Service routing (2)
      • QoS (3)
      • Registration
      • Registration and discovery
      • Registration / de-registration (4)
      • Service discovery (4)
      • Directory (2)
      • Negotiation
      • Service composition (5)
      • Billing of composite services
      • Charging and billing
high level technical view of ngson

High Level Technical View of NGSON

Provide more automated delivery capabilities keyed to the self-organization of the services/applications of the overlay network based on context awareness.

Composing services/applications dynamically.

Self-organize services/applications on an overlay to provide simplified access by service providers and users.

Allow a wide range of services/applications to be offered through different networks to different devices using a range of resources, all based on context awareness.

liaison opportunities

Liaison Opportunities

ITU-T NGN, OSE (Open Services Environment)




ATIS SON Service creation, deliver, provisioning

OMA OSE (OMA Service Environment), Service enablers


OASIS Open standards for a global information society, SOA



The area of service networks is going to get more and more active in the standards arena and will need serious coordination.

For technical aspects (i.e., the network service/transport folks), ‘context aware’, ‘dynamically adaptive’ and ‘self-organizing’ become technical challenges.

Implementation and accounting methodologies become a business challenges.



Service interactions are getting more attention in standardization work

NGSON is taking an approach to services as shown in this presentation.

IEEE welcomes your participation in NGSON

where to find us

Where to find us