(Continuation of Question 2/13​)

Motivation
With the ever increasing number of services and applications, demand has been continuously increasing for enhancing the capabilities of the networks and evolving their infrastructure. Considering the evolution path of NGNs towards IMT-2020&FN, the increasing possibilities of integration of advanced communication technologies (e.g., SDN, NFV and CDN) with advanced information technologies (e.g., cloud computing, Web technologies) are paving the way for evolution of NGNs, and are making available a large set of advanced capabilities for the support of innovative and promising services, applications and technologies in the various business domains and social communities.
Meanwhile, to satisfy the requirements and overcome potential challenges raised by NGNs evolution towards IMT-2020&FN, it is appropriate to consider some innovative technologies such as SDN and NFV in order to provide the network with flexibility, agility and programmability and other advanced characteristics. As a result, the importance of the requirements and architecture studies of NGNs evolution with these technologies is obtaining more and more extensive approval and acceptance.

Furthermore, as NGN has established its position as an underlying network infrastructure for a large number of services and applications, it is critical to study how innovative services and applications meeting the industry demands can be realized by incremental enhancements of the capabilities of NGNs and evolved versions of NGNs such as network intelligence capability enhancement (NICE).

Last but not least, the study of requirements and architecture for these incremental realizations of innovative services, applications and technologies requires that relevant NGN specifications be maintained and updated.

Question
The Question addresses the support of emerging services and applications in NGNs evolving in a phased network evolution approach. Based on the use cases and related ecosystem aspects, this Question will study the requirements and capabilities imposed on evolving NGNs.

Based on these requirements and capabilities, Recommendations on architectures for NGNs evolving in a phased network evolution approach will be specified.

The study of requirements, capabilities and architectures will consider the integration and usage of enabling information and communication technologies.

Tasks
Tasks include, but are not limited to:

• Development of Recommendations on use cases and ecosystem aspects (taking into account business models) for NGNs evolving in a phased network evolution approach
• Development of Recommendations on the requirements and architectures for NGNs evolving in a phased network evolution approach with the support of emerging technologies, including but not limited to:
  • SDN technologies, e.g. for issues like centralized control and orchestration;
  • NFV technologies, e.g. for issues like resource management and orchestration;
  • CDN technologies, e.g. for issues like content delivery optimization;
  • technologies for network intelligence enhancements, e.g. data in-network processing, mining, analytics and reasoning; dynamic policy control and traffic scheduling;
• Development of Recommendations on the specific capability sets for NGNs in a phased network evolution approach for the support of given emerging service features and the usage/integration of given emerging information and communication technologies
• Maintenance and update of existing Recommendations on NGN, NGNe, IPTV, emergency communications including development of new Recommendations on these subjects as appropriate.

An up-to-date status of work under this Question is contained in the SG13 Work Programme: http://www.itu.int/itu-t/workprog/wp_search.aspx?sg=13

Relationships

Recommendations:

• Y-series

Questions:

• Relevant Questions of SG13 on network evolution aspects

Study Groups:

• Other ITU-T Study Groups as appropriate, ITU-R Study Groups as appropriate

Standardization bodies:

• IETF
• OMA
• IEEE
• ATIS
• ETSI
• ISO/IEC
• 3GPP/3GPP2
• those involved in network evolution matters