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Radio Spectrum Inventory Act

July 17th, 2009 jesse No comments

Companion Bill to Senate Radio Spectrum Inventory Act Introduced in House

600px-Seal of the House of RepresentativesIn March, Senator John Kerry (D-MA) introduced the Radio Spectrum Inventory Act (S 649) in the Senate. Earlier this month, that bill passed the Senate Commerce, Science and Transportation Committee.

Last week, Representative Henry Waxman (CA-30) introduced a companion bill — HR 3125 — in the House of Representatives; the bill has been referred to the House Committee on Energy and Commerce.

The bills, if passed, would mandate an inventory of radio spectrum bands managed by the National Telecommunications and Information Administration (NTIA) and the Federal Communications Commission.

The Senate version calls for an inventory of frequencies between 300 MHz-3.5 GHz managed by the two agencies, while the House bill would mandate an inventory of 225 MHz-10 GHz.

S 649

Senate Bill 649 states that the NTIA and the FCC would be required to inventory the spectrum no later than 180 days after the bill becomes law; after the initial survey, follow-ups would be required every two years. Both agencies would need to prepare a report listing the licenses or government user assigned in the band, the total spectrum allocation, by band, of each licensee or government user (in percentage terms and in sum) and the number of intentional radiators and end-user intentional radiators that have been deployed in the band with each license or government user.

Additionally, if the information is applicable, the report would be required to show the type of intentional radiators operating in the band, the type of unlicensed intentional radiators authorized to operate in the band, contour maps that illustrate signal coverage and strength and the approximate geo-location of base stations or fixed transmitters. The report would then be sent to the Senate Committee on Commerce, Science and Transportation and to the House Committee on Energy and Commerce.

The bill also mandates that both agencies create a centralized portal or Web site that lists each agency’s band inventories. This information would then be made available to the public via an Internet-accessible Web site. Both agencies would also be required to make all necessary efforts to maintain and update the inventory information “in near real-time fashion and whenever there is a transfer or auction of licenses or change in allocation or assignment.”

“Our public airwaves belong to the American people, and we need to make certain we are putting them to good use in the best interests of those citizens,” Senator Kerry said when he introduced the bill in March. “Last year’s 700 MHz auction resulted in $20 billion for the treasury and will create greater opportunity and choice for consumers and businesses that need broadband service. We also took a great step forward when the FCC established a way for unlicensed devices to operate in white spaces. These two initiatives are evidence of how valuable spectrum is and how it serves as fertile grounds for innovation. We need to make sure we’re making as much of it available to innovators and consumers as possible.”

HR 3125

Like S 649, HR 3125 calls for the NTIA and the FCC to issue a report on the inventory of spectrum no later than 180 days after the bill becomes law; after the initial survey, follow-ups would be required every two years. The House bill goes a bit further than S 634, however, calling for the two agencies to work with the Office of Science and Technology Policy (OSTP); this office advises the President on the effects of science and technology on domestic and international affairs.

The agency reports called for in HR 3125 would include the same information called for in the Senate version. Like the Senate bill, the House bill calls for the reports to be made available on the Internet and update the reports as needed. Both bills include an exemption for licensees or users if they can demonstrate that disclosure would be harmful to national security.

“The [bill] represents a significant step in making available more spectrum for commercial and wireless services. The more efficient use of our nation’s airwaves will increase innovation for wireless products and services and improve the connectivity of the American people,” said bill co-sponsor Representative Rick Boucher (D-VA-9). “As more people use wireless devices and as advanced applications require higher data rates over time, additional spectrum will be needed to accommodate growth. Wireless technologies can also play a critical role in bringing broadband to more consumers, particularly in rural areas.”

S 649 is co-sponsored by Kay Bailey Hutchison (R-TX), Amy Klobuchar (D-MN), Bill Nelson (D-FL), Mark Pryor (D-AR), Olympia Snowe (R-ME), John Thune (R-SD), Mark Warner (D-VA) and Roger Wicker (R-MS).

HR 3125 already has 17 co-sponsors: Joe Barton (R-TX-6), Rick Boucher (D-VA-9), Steve Buyer (R-IN-4), Kathy Castor (D-FL-11), John Dingell (D-MI-15), Michael Doyle (D-PA-14), Anna Eshoo (D-CA-14), Bart Gordon (D-TN-6), Jay Inslee (D-WA-1), Edward Markey (D-MA-7), Doris Matsui (D-CA-5), Jerry McNerney (D-CA-11), Zachary Space (D-OH 18), Cliff Stearns (R-FL-6), Bart Stupak (D-MI-1), Fred Upton (R-MI-6) and Peter Welch (D-VT).

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Ofcom decides on white-space parameters

July 6th, 2009 jesse No comments

televisionArticle in The Register re: White Spaces in the UK. In summ: The UK will also require a database but will allow sensing only (untethered) operation at very low power.

Full text of the article:

Ofcom decides on white-space parameters
Location, location, location and a bit of sensing
By Bill Ray
Posted in Mobile, 2nd July 2009 08:02 GMT

UK regulator Ofcom has been considering what restrictions to place on white-space-exploiting cognitive radios, and has concluded that a location-based database is the only way to be sure.

The conclusion comes in a statement (http://www.ofcom.org.uk/consult/condocs/cognitive/statement/) following up on the consultation Ofcom launched back in February, and concludes that detection mechanisms might one day work, but for the foreseeable future any device intending to operate in white-space spectrum will need to check its location against an online database to make sure no one else is around before it starts transmitting.

Advocates of utilising white space – bits of radio spectrum used to broadcast TV in one part of the country which lie unused in other places – have been arguing that devices can detect and avoid transmissions, though tests have demonstrated the difficulty of that approach.

The easiest approach is to have an online database of available frequencies and require devices to check before they start transmitting. That means white-space-using devices either have to be fitted with GPS, or be set up by an engineer – with the latter option being most likely as the restrictions mean that white space is only really going to be used for fixed point-to-point connections.

Assuming it gets used at all, that is: Ofcom’s statement makes no reference to the calculations of Adrian Payne, who argued last December (http://www.theregister.co.uk/2008/12/03/white_space_uk/) that even if transmissions are allowed in white space the density of TVs in the UK makes any commercial deployment impractical.

Ofcom’s almost religious dedication to the capabilities of cognitive radio makes such calculations irrelevant, as well as making it impossible to reject detect and avoid entirely, as the FCC has done in the US. So in the UK, it will be possible to deploy a cognitive radio without checking the database – though at very low power levels and only if you continue checking for other users at least once a second.

Ofcom also isn’t saying what criteria it’s going to use to judge usable detect and avoid devices, noting that “detection-only devices [are] likely many years away and hence there is little advantage in rapidly making the necessary regulations to licence-exempt such devices”. The regulator is, however, planning to publish proposals for location-based white space systems later this year, which should prove interesting. ®

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