A few days ago, ETSI released the ETSI TC SES specification TS 102 855, which describes how to integrate broadband satellite multimedia networks into the next-generation network architecture.
The ETSI standardized Next Generation Network (NGN) concept provides opportunities for satellite communications to further integrate into the global communications network. The NGN architecture can be used to provide seamless integration between fixed satellite networks and terrestrial networks as part of the generalized fixed mobile network convergence. The new technical specifications issued by the ETSI Satellite Ground Stations and Systems Technical Committee (TC SES) explored the technical challenges facing satellite networks in adopting this new network model.
The new specification defines the integration and interoperability of broadband satellite multimedia networks and emerging terrestrial next-generation network architectures. The evolution of existing broadband satellite systems to the next generation of infrastructure is critical to the successful integration of satellite systems into new converged communication networks.
One of the main features of the NGN architecture is the separation of services and lower-layer transmission functions (eg, network technology), which allows services and transmissions to be provided separately and evolve independently, while providing an open interface between them.
As an example of technical challenges, one of NGN ’s main goals is to provide end-to-end quality of service (QoS) guarantees for personal multimedia services or applications on numerous network technologies. Whether satellite networks can be successfully integrated into NGN needs to consider the characteristics and limitations of satellite networks relative to terrestrial networks.
The new specification uses the ETSI TISPAN NGN version 2 functional architecture and determines the relevant functions and interfaces for satellite network convergence. An important functional building block of TISPAN NGN architecture is the IP Multimedia Subsystem (IMS). The method used by TC SES demonstrates the path of the existing satellite system to a fully integrated system. A simple start scenario shows how to deploy basic satellite network services on an existing IMS. Then, with the maturity of IMS-based networks and applications, the specification shows how, through the use of public user management systems and control platforms, converged services can interact and integrate with other satellite and land-based fixed and wireless networks.
The specification ETSI TS 102 855 "Interaction and Integration of BSM in Next Generation Networks" was developed by the TC SES Broadband Satellite Multimedia (BSM) Working Group. The European Commission (EC) and the European Free Trade Association (EFTA) jointly provide financial support for it.
Rupert Goodings, vice chairman of TC SES and chairman of the BSM working group, said: "The specification aims to provide timely support for satellite communications and encourage the development of next-generation satellite networks that can take advantage of this new network model. I would like to thank the European Commission (EC) and Europe Free Trade Association (EFTA) assistance for project experts. "
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