FCC to Open White Space Spectrum

Sebadoh – Thu, 2008 – 10 – 16 12:05

Daily Wireless has the news that is sure to please advocates such as Google, Microsoft, and Motorola:

FCC Chairman Kevin Martin said today that he will support allowing conditional unlicensed use of the so-called “white spaces” television spectrum. During a press conference, Martin said that he was proposing to let carriers and other vendors deploy devices in white space spectrum which operates unlicensed at powers of 100 milliwatts.

His proposal would also permit use of white space on channels adjacent to existing television stations at powers of up to 40 milliwatts. The FCC is planning to officially vote on whether to allow unlicensed white space use during its Nov. 4 meeting pdf..

Martin said portable devices must have sensing technologies as well as a geo-location database. This would make sure the devices would be able to detect nearby broadcasts in order to avoid those frequencies.

Companies such as Google that are part of the Wireless Innovation Alliance are asking for the white spaces to be unlicensed and open to all.

Here's a video from the Washington Post on testing mobile devices that use the white space spectrum:

So what exactly is white space?

White space in telecommunications refers to unused frequencies in the radio waves portion of the electromagnetic spectrum.

National and international bodies assign differing frequencies for specific uses, and in some cases license the rights to these. This frequency allocation process creates a bandplan which in some cases for technical reasons assigns white space between used bands to avoid interference. In this case, while the frequencies are unused they have been specifically assigned for a purpose.

In an opinion piece over at TVTechnology,  Frank Beacham argues that white space is an incredibly valuable public resource that could provide wireless broadband access for as little as $10 a month:

 Vacant space in TV Channels 5-51 is perfectly suited for cheap WiFi and other unlicensed wireless services. Failure to take advantage of this publicly owned resource would not only be an enormous waste, but eventually allow the spectrum to be tied up for far less noble purposes.

NAB lobbyists would have you believe that the use of wireless devices in these vacant slices of spectrum would cause interference and threaten the transition to terrestrial digital broadcasting. Sports leagues think the devices might cause static on wireless microphones and coaches’ headsets.

Perhaps they are right about the interference, at least at this early stage of the technology. But what doesn’t work now can be made to work. Sensors can detect which frequencies in an area have no usable TV signals and a device’s transmission can be limited to prevent it from interfering with occupied channels....

THE OTHER SIDE

The NAB, [Ben Scott, policy director of FreePress, a nonpartisan group advocating an open, independent media] said, is engaged in “a campaign of misinformation” to persuade Congress and regulators to ignore the huge potential of unused public airwaves. “In some communities, more than three-quarters of these ‘white spaces’ are vacant,” he said. “The social and economic benefits of utilizing these unused airwaves far outweigh the shortsighted fears of the broadcast industry.”

By using “false assumptions and twisted facts,” Scott said, the NAB is attempting to collapse the entire white spaces debate into a single test of prototype devices at the FCC.

Scott, as well as the high-tech companies advocating the unlicensed use of white space, argues that the FCC’s initial tests actually demonstrated the viability of the smart sensing technology to reduce interference. The tests are being used as a bogeyman in the public lobbying campaign.

It is dangerous, Beacham writes, to allow technical obstacles to cloud the big picture—which is setting important policy as to how a valuable public resource is to be used.

What do you think?

 

Score: 9.0, votes: 1

Comments

White Space = Internet Entitlement

Make that valuable spectrum so something for the public in the form of free Internet access.

Anonymous Stargazer – Thu, 2008 – 10 – 16 14:12

Stark Contrast

 

 

Here comes the NAB:

The National Association of Broadcasters says Martin's support of 'white space' devices is contradicted by the FCC's own engineering report. In a press release yesterday afternoon, the NAB points to a "stark contrast" between the executive summary and the more "pessimistic 149-page report" that was released Wednesday.

"It would appear that the FCC is misinterpreting the actual data collected by their own engineers," said NAB Executive Vice President Dennis Wharton. "Any reasonable analysis of the report would conclude that unlicensed devices that rely solely on spectrum sensing threaten the viability of clear television reception. Basing public policy on an imprecise Cliffs Notes version of a 149-page report raises troubling questions."

Rocco Fanucci – Fri, 2008 – 10 – 17 12:55

Is is soup yet?

 

 

Ken Kershbaumer reports on the coming battle, the FCC may be going up against the NFL, NBA and PGA. Together with the NAB, it makes for a very intimidating bowl of alphabet soup:

Even though FCC Office of Engineering (OET) test results that found that White Space devices could not reliably detect TV and wireless-microphone signals, FCC Chairman Kevin Martin is moving forward with a vote on Nov. 4. If he can get the support of three FCC commissioners, unlicensed wireless consumer devices could eventually come to White Space spectrum near you.

Concern is mounting.

“The fact that FCC Chairman Martin concluded that these devices could be used without interfering with broadcast signals when the devices failed in testing proves that, no matter what happens, the FCC does not have the best interest of broadcasters and the general public at heart,” says Kurt Heitmann, SVP of sales and marketing for Red House, parent company of CP Communications and Total RF, two industry-leading wireless-systems providers.
 
White Space, the spectrum between over-the-air TV signals, serves as a buffer zone to prevent the TV signals from interfering with each other. Consumer-advocate groups, consumer-electronics manufacturers, and such companies as Google and Microsoft view the spectrum as wide open and available to be used to deliver a host of wireless services, including broadband to rural areas not served by DSL or cable companies.

For more than 30 years, the spectrum has been home to tens of thousands of wireless-microphone and -communication systems: the microphones used by broadcasters to cover sporting events, NFL coach-to-QB communication systems, the PGA’s ShotLink system integral to scoring and analysis, the NBA system linking referee whistles with game clocks, and much, much, more.
 
Holding the vote on Nov. 4, Election Day, is a shrewd move and, for conspiracy theorists and opponents, not a coincidence. Any controversial orders will be lost in the noise of post-election coverage in Washington.

It also gives those concerned about wireless integrity a very short window for action.

“We urge any members of the sports-TV-production and league community who rely on wireless-microphone technology to contact the FCC commissioners, congressmen, and senators and make clear that allowing these devices into the spectrum is a terrible idea,” says Paul Gallo, SVG executive director. “First, the sensing technology that these devices will rely on does not work, and that has been proven time and again in the tests. Second, the rumored plans to set aside two channels for wireless-microphone use are insufficient to meet the needs of the community.”

Industry professionals concerned about the future of White Space integrity have until Oct. 28 to contact FCC commissioners. When it comes to effective lobbying, phone calls are the best bet, according to DC insiders. Higher-level executives, even athletes or on-air talent, can increase effectiveness. Most important, they should be specific about what should happen rather than voice general unhappiness.

No one has seen the wording of the order, but it is expected to include some fig-leaf protection of wireless microphones, most likely just enough to allow those who support the order to tell critics that wireless protection is part of the plan.

Chairman Martin says that portable devices will have spectrum-sensing technology. However, that technology has yet to be proved in either laboratory or field tests. Also, sensing technology is useful only if it can find not only the frequencies in use at the moment they are turned on but also what frequencies are used throughout a given event. For example, a frequency set aside for a halftime show needs to be protected from a fan in the stands’ settling into that frequency during the first half of a football game.

In terms of protection, Martin proposes a geolocation database that would list every sports venue and facility (as well as theaters, soundstages, government buildings, etc.) and allow microphone users to register in that database. However, it is unclear who would maintain the database, how it would be tied in with unlicensed consumer devices, and how frequently it would be updated.

“The issue for sporting events is whether the database includes all sporting venues in the U.S. and how much protection it offers,” says David Donovan, president of Maximum Services Television (MSTV).

Martin also proposes that the devices operate at 100 mW when used in frequencies that are not co-located next to a TV signal. When they are co-located, operation is limited to 40 mW. However, again, it is unclear how the device will know it is operating in co-channel frequencies.

Says Donovan, “We’re concerned that allowing those devices on adjacent channels will cause interference to DTV and cable-television viewing.”

 

Rocco Fanucci – Fri, 2008 – 10 – 17 14:13

Vote!

Let the FCC people vote. Radio spectrum belongs to the public, not fat cats in New York.

Anonymous Stargazer – Fri, 2008 – 10 – 17 18:59