Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Self-configuring multifunction mobile terminals

26.08.2004


Software Defined Radios (SDRs) are mobile devices that can be reconfigured over the air. Users could download new services from network operators, and even have voice and email services provided by different networks. The SCOUT project has studied how SDRs will be regulated and marketed.



"From the high level perspective, mobile terminal evolution will drive network evolution," says Markus Dillinger of Siemens AG and SCOUT coordinator. "SDR Mobile terminals will evolve more and more capabilities. You could be connected, simultaneously, to a Wireless LAN network and UMTS or GPRS. I could check my emails whilst receiving phone calls."

The project has considered some of the big questions and started the debate in new areas. These include user, operator and regulator requirements in cellular and ad hoc networks, new business models for the reconfigurable mobile terminal, and procedures for managing the downloaded software on reconfigurable terminals.


"Telecom regulators have an interest in the deregulation of radio spectrum, which in turn could lead to new services and new ways of providing services, and which could drive the EU economy one step further," comments Dillinger."At the moment, frequency bands are allocated according to services, but one might consider refarming spectrum so that, for example, UMTS could operate in GSM frequency bands."

Achieving a coherent European view on frequency spectrum use and deregulation is difficult. Each country has its own issues and regulation policies are markedly different in, say, France, Germany and the UK. Nevertheless, one of the members of the SCOUT consortium was the German Regulator, Regulierungsbehörde für Telekommunikation und Post, which generated a questionnaire directed at manufacturers: what factors are important, what should be controlled by regulators, do regulators have a role to play vis-à-vis SDR? This has opened up the debate to a wider public and put SDR on the agenda.

More than a standard issue

"We’ve also considered so-called adaptive multiphase standards," adds Dillinger. "If you have a mobile terminal that can be reconfigured via the network, why should we have to wait for a fully-matured standard to be drawn up? You could reduce the time to market if a minimal standard was published and, as new parts were agreed, mobile terminals could download upgrades as required."

Agreement on the original GSM standard was relatively quick, because it was a small group of European interests. UMTS has taken longer to become adopted partly because discussions had to take place on a worldwide basis. "The next generation, 4G, may well take even longer unless the approach we take to standards improves. It’s difficult to please everyone and, in practice, not all aspects of the standard [or specification] may be in place within the prescribed discussion period," comments Dillinger.

Cognitive radio is a concept that takes into account the users’ preferences and immediate environment. "The mobile terminal would realise that you don’t want to download large email attachments while you’re in a metro train, and would only download the message headers," says Dillinger. "The terminal could also decide to use a UMTS connection rather than a Wireless LAN connection because it provided a better service or cheaper tariff at the user’s location."

Research shows that one of the most commonly-voiced user preference is the ability to roam across networks. For the SDR, this means not only roaming from one service provider to another, but from one technology to another: Wireless LAN, GSM, GPRS, UMTS, etc. "Roaming would very much be the enabler for SDR flexibility," says Dillinger. "What’s more, if there’s a need, reconfigurability could be used to provide even more services to the end user."

What technology should be used in these SDR mobile terminals? According to Dillinger: "Well-known standards, such as GSM and UMTS, are sufficiently stable and well-understood to have been committed to ASIC [Application Specific Integrated Circuit] early on, the programming of which is usually fixed at the time of manufacture. "But there are other devices, such as DSPs [Digital Signal Processors] and FPLAs [Field-programmable Logic Arrays] that are eminently suited to providing the processing power in an SDR because they can easily be reprogrammed."

The conflict between the classical standards approach and the IETF [Internet Engineering Task Force] still dominates how SDRs will be controlled. "To what extent should SDRs be supported by networks," says Dillinger. "At one extreme, you have UMTS and GSM networks that are controlled by operators, and at the other you have Wireless LAN networks that are privately owned and autonomous. We need to strike a balance that will, ultimately, stimulate economic growth. At the end of the day, however, you have to prove that spectrum deregulation is beneficial."

Contact:

Markus Dillinger
Siemens AG
Gustav-Heinemann Ring 115
D-81730 Munich
Germany
Mobile: +49-172-6953019
Tel: +49-89-63644826
E-mail: markus.dillinger@siemens.com

| CORDIS Wire
Further information:
http://results.cordis.lu/
http://www.siemens.com

More articles from Information Technology:

nachricht The TU Ilmenau develops tomorrow’s chip technology today
27.04.2017 | Technische Universität Ilmenau

nachricht Five developments for improved data exploitation
19.04.2017 | Deutsches Forschungszentrum für Künstliche Intelligenz GmbH, DFKI

All articles from Information Technology >>>

The most recent press releases about innovation >>>

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

Im Focus: Making lightweight construction suitable for series production

More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.

Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...

Im Focus: Wonder material? Novel nanotube structure strengthens thin films for flexible electronics

Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.

"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...

Im Focus: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Fighting drug resistant tuberculosis – InfectoGnostics meets MYCO-NET² partners in Peru

28.04.2017 | Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

 
Latest News

Wireless power can drive tiny electronic devices in the GI tract

28.04.2017 | Medical Engineering

Ice cave in Transylvania yields window into region's past

28.04.2017 | Earth Sciences

Nose2Brain – Better Therapy for Multiple Sclerosis

28.04.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>