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Next Generation Networks (NGN) 2004 Project


During its January 2002 meeting, SG13 decided to undertake the preparation of a new ITU-T Project entitled "NGN 2004 Project". At the November 2002 SG13 meeting, a preliminary description of the Project was achieved and endorsed by SG13 with the goal to launch the Project. It is regularly updated since then (refer to the NGN Project description above)

The role of the NGN 2004 Project is to organize and to coordinate ITU-T activities on Next Generation Networks. Its target is to produce a first set of Recommendations on NGN by the end of this study period, i.e. mid-2004.

Scope of the Project

Basically, the NGN 2004 Project is seen as a realisation of the concepts adopted in the Global Information Infrastructure (GII). As a result, activities in the frame of the new Project must be in line with existing GII Recommendations (Y series).The intention of the NGN 2004 Project is to establish implementation guidelines and standards for the realisation of Next Generation Networks based on GII concepts.

The major task of the NGN 2004 Project will be to describe all elements required for interoperability and network capabilities to support applications globally across Next Generation Networks.


During the ITU-T Workshop on IP-networking and Mediacom 2004 held in Geneva in April 2001, a session was dedicated to the transition towards Next Generation Networks. Different views on NGNs were presented, however the final panel discussion revealed that it was difficult to reach a common understanding of what the NGN should be.

During the SG13 meeting in Caracas in May 2001, discussions took place on NGN matters however the subject was deemed not mature enough to initiate the preparation of an ITU-T Project on NGN.

At the SG13 meeting in January 2002, NGN issues were again addressed. In particular, discussions in Q.12/13 (which deals with Project coordination and management) focused on the relationship between the Global Information Infrastructure (GII) and Next Generation Networks. The common understanding has been that the NGN has to be seen as the concrete realisation of concepts defined for the GII. In addition, a clear demand from the market for short-term standards in the field of NGN has been identified, which has led to the proposition of 2004 as the target date to prepare the first Recommendations on NGN. A series of Recommendation, including Y.GRM-NGN, General reference model for NGN, is under development with an objective of completion in June 2004.

Number Title
Y.NGN-Overview General overview of NGN functions and characteristics
Y.GRM-NGN General reference model for NGN
Y.NGN-FRM Functional architecture model (ex-Functional requirements and architecture of the NGN)
Y.NGN-SRQ NGN service requirements
Y.NGN-MOB Mobility management requirements and architecture for NGN
Y.NGN-MAN Framework for manageable IP network
Y.NGN-MIG Migration of networks (including TDM networks) to NGN
Y.NGN-CON Regulatory consideration of the NGN
Y.e2eqos End-to-end QoS architecture for IP networks evolving into NGN
Y.123.qos A QoS architecture for Ethernet-based IP access network
Y.NGN-TERM Next Generation Networks terminology: Terms and definitions

As a result, SG13 has agreed to initiate and manage a new Project named NGN 2004 Project. This was done independently of other SG13 Projects which continue their activities.

Current Status

During the SG13 meeting in November 2002, a description document was prepared. In its first version, it includes:
  • A list of basic characteristics of NGN
  • A list of NGN capabilities
  • The objectives of NGN
  • A description of seven study areas where standardisation of NGN is to be undertaken
The description document has been updated at the July-August 2003 and February 2004 SG 13 meetings. A version 3, dated 12 February 2004 is available.

A dedicated FTP area and an email reflector, both open to non ITU-T members and managed by SG13, have been established in order to ensure efficient progress on NGN standardisation in the frame of the NGN 2004 Project and improve the awareness of the ITU-T work.

This description document of the Project is maintained by Q.12/13.

If you would like to assist in this preparatory activity please join the email group or contact Mr Georges Sebek, ITU/TSB (


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Updated : 2004-10-21