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Work underway for next-gen terrestrial DTV spec

Posted: 10 Sep 2007 ?? ?Print Version ?Bookmark and Share

Keywords:DVT broadcast standard? next-gen terrestrial spec? DVB-T2?

The Digital Video Broadcast (DVB) Group, which forged terrestrial, satellite and cable DTV broadcast standards, expects to launch its next-generation terrestrial DTV broadcast specification early next year.

"There is real rocket science going on" in this area, Peter MacAvock, executive director of the DVB project, said at this month's International Broadcast Conference (IBC). The new standard, DVB-T2, "will be a groundbreaking system" rather than "tweaking a few buttons" on the current DVB-T standard, he added.

MacAvock declined to reveal building blocks for the emerging DVB-T2 spec. But "we've reopened Pandora's box" for the spec, he said. "We're examining everything from spread-spectrum, single-carrier systems to more-advanced OFDM for single and multiplexed channels, and even China's DMB-TH" as possible candidates for DVB-T2.

Driving the DVB Group to develop DVB-T2 is the opportunity for broadcasters to claim new spectrum expected to be freed up after analog TV broadcasts are switched off to make way for DTV.

'The best technology'
The DVB Group wants to give broadcasters "the very best technology that can exploit the newly freed-up spectrum," MacAvock said.

DVB-T2 will be designed to coexist with the current terrestrial DTV standard, DVB-T. The new standard will let broadcasters offer a variety of new services, including "ultramobile TV, multimedia channels and HDTV," said MacAvock.

By building enough smarts into the spec, the DVB Group hopes that DVB-T2 can be pitched to regulators as the best use of the new spectrum.

The group expects to complete the first draft of the spec in Q1. Development of consumer products based on the standard will start in late 2009 to early 2010, MacAvock predicted.

- Junko Yoshida
EE Times




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