The emerging multimedia services and applications require various functions and facilities. One of the key features of the multimedia applications that require multi-party communication capability is end-to-end multicast transport functions. Based on this motivation, a set of recommendations have been developed on frameworks and protocols for group management and end-to-end multicast communications over IP multicast as well as non-IP multicast network environments.
These standardization works have been progressing successfully in collaborative manner with ISO/IEC JTC 1/SC 6 to develop common text standards for both standardization bodies. These Recommendations will need to be continuously maintained and updated if any further requirement from the market arise.
Various distributed and conversational multimedia services, such as multimedia telephony, telepresence, IPTV, smart TV, VoD and other contents delivery services require efficient communications capability over various network environments. Distributed service networking protocols based on peer-to-peer (P2P) technology can be one of the useful solutions for supporting new emerging applications which require high performance and scalable communication capability. During 2009~2012 study period, ITU‑T SG 13 has been developing recommendations and supplements on use cases, requirements, high level functional architecture, and detailed functional architectures for distributed service networking (DSN). Considering the progress on DSN in SG 13, mechanisms and protocols to support DSN need to be urgently developed in the next study period. The new set of recommendations developed will provide solutions and guidelines for the vendors and providers who want to implement and deploy DSN technologies
Another emerging area of study by SG 13 concerns smart ubiquitous network (SUN). It is anticipated that a set of recommendations on concepts, requirements, functional architecture on content-awareness, context-awareness, content delivery and network resource management issues, will be developed within a couple of years. Therefore, it is required to develop protocols and mechanisms to support SUN immediately. Especially, content delivery related issues need to be initially focused on but the work should be extended to support other capabilities. SUN related work needs to be studied in connection with functions and capabilities of future networks(FNs).
Recommendations under responsibility of this Question include: X.601, X.602, X.603, X.603.1, X.603.2, X.604, X.604.1, X.604.2, X.605, X.606, X.606.1, X.607, X.607.1, X.608 and X.608.1.
Study items to be considered include, but are not limited to:
- What maintenance or enhancements to existing recommendations on end-to-end multicast need to be developed in response to new market requirements?
- What new recommendations need to be developed to provide mechanisms and protocols to support requirements and functional architectures of DSN?
- What new recommendations need to be developed to provide mechanisms and protocols to support requirements and functional architectures of SUN?
- What futuristic capabilities of FNs are related to relevant capabilities of SUN?
- What enhancements to existing recommendations or new recommendations under development should be adopted to reduce impact on climate changes (e.g. energy savings, reduction of greenhouse gas emissions, implementation of monitoring systems, etc.) either directly or indirectly in information and communication technologies (ICTs) or in other industries?"
Tasks include, but are not limited to:
- maintenance and enhancements of recommendations in the X.60x-series in response to new market requirements (if needed);
- produce new recommendations on mechanisms and protocols to support DSN;
- produce new recommendations on mechanisms and protocols to support SUN in connection with futuristic functions of FNs;
- collaborate with ISO/IEC JTC 1/SC 6 on communication protocol-related issues including development of common text standards and/or technically aligned standards for both standardization bodies;
- collaborate with other study groups within ITU‑T that are dealing with multicast, distributed service networking, SUN, and FN-related issues;
- collaborate with other organizations, such as Internet Society/IETF, on relevant issues;
- development of methodology for security testing and test specification for security testing of Protocols supporting distributed, smart service networking and end-to-end multicast.
X-series Recommendations on multicast communications
Y-series Recommendations and Supplements on IPTV, content delivery, DSN, SUN and FNs
- H-series Recommendations on multimedia services and applications
- ITU‑T SG 13 on emerging networks
- ITU‑T SG 16 on multimedia services and applications