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L'UE veut moins d'interférences des téléphones avec les radios et les TV

Publié 07 mai 2010 - Mis à jour 11 mai 2010
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Les pays de l'UE devront adopter certains standards techniques pour permettre à davantage d'appareils de fournir des services sans fil sans causer d'interférences sur d'autres services, selon une décision prise par la Commission européenne hier (6 mai).

The EU's technical rules would ensure that radios, handsets and base stations – usually towering wireless antennas that carry cellular networks – would use an 800mhz spectrum band as a result of the "digital switchover" (see 'Background'), without any harmful interference caused to TVs and radios using the same bands, according to a statement from the EU executive.

Yesterday's decision stems from an EU consultation on the allocation of the 800 MHz band which is being freed up from its traditional analogue broadcasting function to accommodate popular digital services, especially in remote rural areas.

Interference fears remain

However, industry sources say they are unsure on what kind of empirical information or testing the Commission is basing yesterday's decision on.

"We have not seen any independent testing of this [harmful interference] done by the Commission," said one source.

Industry experts across the EU have been complaining that Brussels has not run enough tests to see how much interference could arise from crowding wireless and terrestrial services onto the same bands (EurActiv 07/04/10).

In Germany and in the Netherlands, experts have been warning that doling out spectrum to too many operators will cause more interference on televisions and radios.

"We are expecting massive interference on television and other receivers," Uwe Bärmann, chief technology officer at Germany's third largest cable operator, Kabel BW, said in an interview with the German press.

In the Netherlands, tests showed that there was a 90% chance of interference when an LTE mobile – a new and faster generation of mobile networks - was used at a distance of one metre from a television set.

Tests conducted in Germany reportedly showed little or no interference caused by mobile networks to cable television, though critics argue that the LTE mobile networks, believed to cause such interference, are not prevalent enough to test their full effects.

Meanwhile, an EU official told EurActiv that to accommodate every operator and every service, the EU needs to discuss what constitutes "tolerable interference".

In March, a report commissioned by the UK media regulator Ofcom investigated the possibility of interference from LTE handsets with digital terrestrial television, and concluded that the installation of high quality filters and aerial flyleads – additional cables - would resolve the majority of issues.

44bn euro boost

The Commission believes its new technical standards will not only facilitate greater use of wireless services, but could also boost the European economy by up to €44bn.

"This decision paves the way for implementation of innovative broadband technologies and for fast-growing demand for wireless services to be met," said Digital Agenda Commissioner Neelie Kroes.

study conducted for the Commission found that an EU-coordinated spectrum policy would increase the potential economic impact of the digital dividend by between €17 and €44 billion.

Réactions : 

"Mobile devices used near a television set-top-box (STB) or cable modem (CM) could cause interference. Such interference, which Cable Europe Labs considers avoidable, may cause either a temporary loss of the desired signal or may affect the quality of the sound or picture produced by a user's equipment. In the case of digital television, which is currently being rolled out across Europe, such interference would result in preventing reception altogether," according to an assessment by the European group of cable operators, Cable Group.

Contexte : 

As new digital technology replaces traditional analogue to meet the 2012 European deadline for the so-called 'digital switchover', the same services can be provided with less spectrum, opening up new opportunities for other operators.

The 'digital dividend' - spectrum that is freed as a result of the switchover - has been hailed in Brussels as a way to boost growth in a highly profitable digital market and bring broadband to remote areas that may not have terrestrial networks.

"The digital dividend is a once in a lifetime opportunity to make 'broadband for all' a reality all over Europe and boost some of the most innovative sectors of our economy," former Information Society Commissioner Viviane Reding underlined last year.

Brussels proposed to allocate the 790-862 MHz sub-band to telecoms operators to allow them to exploit the digital dividend. The 800 MHz band ranks among the most valuable freed frequencies, since it travels long distances and through buildings.

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