Specialist Task Force 383:
Multi-service interoperability with harmonised QoS for Broadband Satellite
Systems (BSM)
Who we are:
Team Leader: Robert Mort
Team Members: Marie-Jose Montpetit
Matteo Berioli
Josef Rammer
What we do :
The STF will produce the
following technical specifications:
PHASE 1
- DTS/SES-00305:
Interworking and Integration of BSM in Next Generation Networks
PHASE 2
-
DTS/SES-00291: BSM
MPLS-based Functional Architecture
- DTS/SES-00292:
Negotiation and management of
MPLS labels (or Diffserv codepoints) with attached networks
The following draft documents are available and your inputs
and comments are welcome:
DTS/SES-00305: Interworking
and Integration of BSM in Next Generation Networks
For more details, see our
Terms of Reference
Why we do it:
Satellite
technology is an important delivery platform for diverse services such as
interactive TV and mobile, high-speed internet access. Satellite services are
particularly useful for rural and outlying regions, where other systems are
difficult to deploy on a commercial basis. They therefore can play a crucial
role in ensuring that all Europeans can access high quality information
services.
It is important that satellite
networks offer IP network services comparable to and competitive with
terrestrial services, in particular with regard to support for multimedia
applications and general interoperability of IP-services. These objectives can
only be achieved if the development of satellite standards keeps pace with the
rapid evolution of the interoperability for terrestrial IP network standards. A
set of such open standards will enable service providers to identify and support
common service platforms, and manufacturers to design competitive solutions.
The work is a further
development of the ETSI TC SES/WG-BSM
functional architecture which is being used as the basis for a family of IP-related
satellite standards. This work to date has resulted in a new functional
architecture that separates the higher layer IP-based network services from the
lower layer satellite-dependent radio interface. This approach is based on the
3G network architecture (which separates the functions into "Access Stratum" and
"Non-Access Stratum"). The BSM architecture is now being used to define a set of
IP interworking standards that are optimised for satellite networks, but
independent of any specific system and hence applicable to all satellite
telecommunication systems.
The overall objective of BSM WG
activity is to define this common functional architecture for satellite networks
that provides a framework for efficient interworking between IP-based satellite
networks and other IP-based networks, in particular fixed and mobile terrestrial
networks. The resulting standards are designed to support the deployment of
IP-over-satellite network services, with a particular emphasis on access network
scenarios such as Internet access and remote office interconnections.
Following this approach, the
NGN is seen as the future universal network based on IP into which different
network technologies will be integrated. ETSI TISPAN, ITU and others have
defined many of the functional characteristics of the NGN and it is important
for interoperability of the BSM to specify how exactly the functional
architecture defined for the BSM will be integrated within the NGN, and if
necessary how BSM functions and interfaces need to be harmonised. Since NGN is a
generic network, the BSM would be an example of such a network and the way in
which BSM functions are aligned or otherwise with the NGN needs to be specified
in one of the key outputs of the work.
An important aspect of NGN
functionality is QoS. Some work on QoS has been done previously in the BSM WG’s
STF 283, resulting in Technical
Specifications (TSs) on aspects of QoS Architecture, on IntServ and on DiffServ
interworking (ETSI TSs 102 462, 102 463, 102 464). Further work is needed on
harmonising the BSM functional definitions with the NGN architecture, taking
into account the new work performed recently in TISPAN on QoS implications of
NGN.
Another aspect is Multi-protocol Label Switching (MPLS) which is often
employed today as a solution for delivering quality of service (QoS) on IP-based
terrestrial networks by providing QoS-based routing of flows. Compatibility
between the BSM and such networks should be an essential feature, and the
ability to support MPLS efficiently over the BSM is highly desirable, and
will be a further part of the work.
Time plan for the work:
We intend to complete our work by end August
2011.
How to contact us:
If you would like more information, please
contact the STF Leader on:
mort.robert@gmail.com
This information is based upon STF working assumptions.
The views expressed do not necessarily represent the position of ETSI in this
context.
Last updated: 2013-04-13 17:31:49