Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

As terrestrial telecoms dial into satellite networks

17.01.2006


Improving the integration of satellite networks with more traditional terrestrial telephone infrastructures, will help next generation telephony move from concept towards reality, as researchers are demonstrating.



Historically, we have been accustomed to using fixed-line infrastructures for traditional telecommunications, cellular networks for mobile services, and satellite architectures for high-capacity links and ‘one-to-many’ broadcasting. While more and more operators are starting to offer both fixed-line and mobile services, satellite services have remained distinctly separate.

But if the concept of UMTS (Universal Mobile Telephone Services) – of individuals having a single universal number for all their communication services – is ever to become a reality, operators and service providers need to find a way to integrate satellite architectures and their distinct advantages of high-capacity and wide coverage with the more familiar terrestrial infrastructures.


Completed in June 2005, the IST-funded SAILOR project demonstrated the viability of combining telecom services from both terrestrial and satellite-based UMTS networks, to produce communication services that combine the best of the advantages from these widely differing infrastructures.

“Our main achievement was to develop a complete architecture for terrestrial and satellite-based services, with a working platform to demonstrate how the different service types could be integrated,” says project coordinator Arnoldo Giralda of Telespazio in Rome. “Using this platform, we were able to show key functions in potential future services such as telelearning and telemedicine.”

What are the advantages of integrating satellite-based services into a UMTS architecture? “Of course a key advantage is satellite’s unique one-to-many broadcast or multicast capability,” says Giralda. “Satellite services can effectively supply common information using a single channel to users over a wide area. Achieving this coverage with terrestrial networks would entail simultaneous use of large numbers of individual channels.”

The SAILOR platform provides flexibility in terms of quality of services – the platform optimises all the functions to this end, saves network capacity through the ability to exploit the advantages of satellite technology, i.e. sending very large amounts of information using the minimum number of communication channels and minimises the cost of new services for telecoms operators and equipment manufacturers by making possible the design and use of low-cost communication terminals.

It embraces high-speed data, as well as voice services, and exploits the special features of satellite communication to best advantage, i.e. providing coverage to geographic areas suffering from limited or no telecommunications service (which can include ships at sea as well as land-based destinations), and boosting the bandwidth and hence speed of all connections. The platform also focuses on an ‘exploitable’ approach to combining the different architectures; the services offered are designed to be affordable as well as high-quality.

One important new function for example is in the area of controlling user access to services, to maintain service quality and prevent overload. Says Giralda, “the system provides us with the ability to accept or reject call requests from a user, according to the capacity of the system.”

Another key achievement was the development of an innovative software Cellular Planning Tool to help optimise any integrated terrestrial/satellite cellular network layout. The new tool is designed to help operators plan the optimal cellular-antenna deployment to satisfy traffic needs for a certain area. “The tool enables us to design the deployment and coverage of cellular base stations and antennae so as to minimise the number of satellites required.”

Now that SAILOR is complete, one of the project partners (Siemens) is already investigating how to implement the work undertaken within the project into its organisational procedures. The work on RASN (Radio Access Support Network), which covers the functions involved in interfacing IP networks and mobile architectures, is proving of particular interest. SAILOR’s results are also feeding into the work of a number of key standardisation bodies; contributing to the relevant UMTS ETSI and 3GPP standardisation groups, which are involved in developing new market scenarios for the latest satellite systems and the network tools to support them.

Tara Morris | alfa
Further information:
http://istresults.cordis.lu/index.cfm/section/news/tpl/article/BrowsingType/Features/ID/80098

More articles from Communications Media:

nachricht Arguments, Emotions, and News distribution in social media - Leibniz-WissenschaftsCampus Tübingen
04.05.2018 | Leibniz-Institut für Wissensmedien

nachricht High Number of Science Enthusiasts in Switzerland
05.02.2018 | Universität Zürich

All articles from Communications Media >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

Im Focus: Dozens of binaries from Milky Way's globular clusters could be detectable by LISA

Next-generation gravitational wave detector in space will complement LIGO on Earth

The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...

Im Focus: Entangled atoms shine in unison

A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.

The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

 
Latest News

Designer cells: artificial enzyme can activate a gene switch

22.05.2018 | Life Sciences

PR of MCC: Carbon removal from atmosphere unavoidable for 1.5 degree target

22.05.2018 | Earth Sciences

Achema 2018: New camera system monitors distillation and helps save energy

22.05.2018 | Trade Fair News

VideoLinks
Science & Research
Overview of more VideoLinks >>>