(Continuation of Q.1/17) Motivation
The emerging multimedia applications require various functions and
facilities. The end-to-end multicast functions will be one of the key features
of the multimedia applications that require multi-party communication
capability.
Recommendations X.601, X.602, X.605, X.606, X.606.1, X.607, and X.608 and
draft Recommendations X.607.1 and X.608.1 specify multi-party communications
framework, group management facility, end-to-end multicast communications
service and protocols over IP multicast network environments.
Recommendations X.603, X.603.1 and draft Recommendation X.603.2 specify
relayed multicast framework and protocols which provide end-to-end multicast
communication services for the one-to-many group applications over unicast IP
network environments. Recommendation X.603.1/Amd.1 specifies security extensions
for the one-to-many relayed multicast protocol. Draft Recommendation X.mmc-1
specifies multicast framework over wireless access network environment.
Draft Recommendations X.mmc-2 and X.mmc-3, which specify the multicast
protocols over wireless access network environment, need to be completed in the
2009-2012 study period. These standardization works have been progressing
successfully in collaborative manner with ISO/IEC JTC 1/SC 6 to develop common
standards of both standardization bodies.
Emerging multimedia applications such as IPTV and User Created Contents (UCC)
broadcasting services require efficient multicast communications capability over
various network environments. Peer-to-Peer (P2P) based multicast communications
technology may be a possible solution for providing new emerging applications
which require high performance and scalable communications capability. The new
set of Recommendations will provide end-to-end multicast communications
capability for the emerging services such as IPTV and UCC, over the fixed
network as well as wireless/mobile network environments.
Recommendations under responsibility of this Question include: X.601, X.602,
X.603, X.603.1, X.605, X.606, X.606.1, X.607 and X.608.
Question
Study items to be considered include, but are not limited to:
- What modifications or enhancements to existing Recommendations need to
be developed in response to new market requirements?
- What enhancements or new Recommendations need to be developed to provide
end-to-end multicast communications protocols for the wireless network
environment?
- What enhancements or new Recommendations need to be developed to meet
new requirements of emerging applications such as IPTV and UCC contents
delivery?
- What enhancements or new Recommendations need to be developed to provide
end-to-end multicast communications protocols to meet new requirements of
evolving new network environments such as NGN?
- What enhancements to existing Recommendations under review or new
Recommendations under development should be adopted to reduce impact on
climate changes (e.g., energy savings, reduction of green house gas
emissions, implementation of monitoring systems, etc.) either directly or
indirectly in Information and Communication Technologies (ICTs) or in other
industries?”
Tasks
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 updated or new Recommendations on end-to-end mobile multicast
communications protocol over IP multicast network environments.
- Produce updated or new Recommendations on end-to-end mobile multicast
communications protocol over network environments where IP multicast is not
fully deployed.
- Produce updated or new Recommendations on end-to-end multicast
communications protocol based on P2P technology to support streaming service
such as IPTV and UCC.
- Produce updated or new Recommendations on end-to-end multicast
communications protocols over NGN environments.
- Collaborate with ISO/IEC JTC 1/SC 6 on multicast related issues
including development of common text standards for both standardization
bodies.
- Collaborate with other Study Groups within ITU-T that are dealing with
multicast related issues for NGN as well as non-NGN.
- Collaborate with other organizations, such as Internet Society/IETF, on
architectural, service and protocol issues for end-to-end multicast
communications.
Relationships
Recommendations:
- X.200, X.214, X.224, Y.ngn-mcastsf, Y.ngn-mcast-fa and Y.iptv-mcastfr.
Questions:
- ITU-T Qs E/17, I/17 and O/17.
Study Groups:
Standardization Bodies:
- ISO/IEC JTC 1/SC 6; IETF.
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