"White Spaces" Rules for TV Spectrum Released

On Friday (11/14/2008) the Federal Communications Commission (FCC) released their long-awaited and highly-debated Rules for the development and operation of so-called television band "white spaces" devices to be authorized under CFR 47 Part 15 sub-part H.


The following is excerpted from the FCC's "White Spaces" Order (FCC 08-260) on ET Docket No. 04-186 and ET Docket No. 02-380):

Introduction - Item 10. All Devices. All unlicensed TV band fixed and personal/portable TV band devices will be permitted to operate on TV channels 21-51, excluding channel 37. In addition, fixed TVBDs that only communicate with other fixed TVBDs will be permitted to operate on channels 2 and 5-20, except that they must avoid operation on channels used by private land mobile radio service (PLMRS), i.e., public safety, and commercial mobile radio service operations on channels in certain markets and areas adjacent to them. Also, in individual markets where there are Private Land Mobile Radio Service or Commercial Mobile Radio Service (PLMRS/CMRS) operations on channels 14-20, two channels in the range 21-51 will be reserved for operation by wireless microphones such that TVBDs will not be permitted on those channels. This plan for channel use is consistent with the requests of the various white space proponents and would reserve channels for a "safe harbor" for operation of wireless microphones and ensure protection of the public safety and other land mobile services that use channels 14-20. At this time, we are only permitting fixed TVBDs to operate on channels not that are not immediately next to (first adjacent on either side of) the channel of a TV station; personal portable devices will be allowed to operate on first adjacent channels to a TV station subject to the power limitation indicated above. All unlicensed TV band devices will be required to limit their out-of-band emissions in the first adjacent channel to a level 55 dB below the power level in the channel they occupy, as measured in a 100 kHz bandwidth. In addition, all TVBDs will be required to comply with a more stringent out-of-band emissions band at the edges of channels 36 and 38 that are adjacent to channel 37 in order to protect medical telemetry devices on that channel 37. Fixed devices will also be required to periodically transmit a signal with their identification when they are operating. This will facilitate identification of sources of interference. The database system for fixed stations and personal/portable devices with geo-location and database access capability will be managed by a database manager or managers selected by our Office of Engineering and Technology.

Full text of Order:

http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-08-260A1.pdf


It'll be at least a year or more until any products or services are available to utilize this spectrum (none have been certificated by the FCC as yet and, you can probably count on both proponents and opponents continuing their war of words and legal challenges), so, this might be a good time to suggest that all potential "white spaces" users familiarize themselves with Appendix B of the Order which contains the Final "White Spaces" Rules and the new Part 15 Sub-Part H on Television Band Devices.


NR

TV "White Space" Spectrum Debate Simmers

For those following the TV spectrum "white spaces" debate currently simmering on the FCC's back burner, here is a policy backgrounder worth a read from Sascha Meinrath and the New America Foundation:

According to Meinrath, "smart" wireless devices can use the unassigned frequencies between broadcast TV channels to offer wireless broadband and other innovative services. A rulemaking is pending at the FCC (Docket 04-186 - with over 11,000 comments from the public and industry to date) as to whether to permit unlicensed access to this currently wasted spectrum, subject to technical requirements that will protect television reception from interference. Access to the vacant TV channels in each market has been the subject of intense lobbying, yet far too many of the arguments against "white space" devices rely upon misinformation about the technologies and the FCC process that will prevent harmful interference to DTV reception and other incumbent services.

This policy backgrounder offers a summary analysis, and is an effort to help policymakers strike the appropriate balance between protecting existing services from interference while making the benefits of mobile broadband services available and affordable for all consumers. It provides policymakers with:

1. a brief historical background to the current FCC proceedings;
2. a description of White Space Device (WSD) technologies;
3. a “Myths vs. Facts” section addressing the key concerns raised about WSDs;
4. an overview of the public benefits of WSDs; and
5. a concise summary of where we are in the multi-phase process of adopting WSD technologies for consumer use.

The complete document should be reviewed by anyone interested in or concerned about the development of "white space devices" (WSD's), FCC regulation, and technology -- because spectrum matters.

NR

700 MHz, TV "White Space" Spectrum, the FCC and the Future of Wireless Communications

She's done it again! Susan P. Crawford, that is. In her latest working paper, The Radio and The Internet, she presents a broad overview and historical background (with many footnotes to more in-depth details for those with inquiring minds) of how the natural resource known as the RF spectrum has been allocated and managed (or, as many believe, mis-managed) by the FCC over the last several decades.

But, she also has done an excellent job (the best I've seen, at least) of putting into a pretty balanced context most of the unbalanced rhetoric, hype, and political posturing from all sides of the hotly debated 700 MHz auction rules proceeding that we've all just experienced.

She also reminds the regulators of the pressing need for them to be much more decisive than they have been regarding the definition of the "public interest" aspect of 21st century spectrum and technology matters during the on-going TV "White Spaces" debate which, by the way, will most certainly be the subject of the next big spectrum battle. Stay tuned - it's likely to be just as contentious if not more so than the 700 MHz debate was since it involves unlicensed use of the spectrum.

Here's the abstract of the paper, but the actual paper is a much better read and really deserves a few minutes of your time:

Abstract:

The airwaves offer the potential for contributing to enormous
economic growth if they are used more efficiently for facilitating
high-speed internet access, but recent industry and government
actions have failed to follow this path.

This article evaluates the multi-billion-dollar 700 MHz auction
regime established by the Federal Communications Commission
in August 2007 as a case study in our national approach to this
valuable resource, and argues that the public interest would
best be served by having ubiquitous access to the internet be
the top priority of communications policy.

The article criticizes the nearly exclusive focus of the FCC on the
interests of incumbents and law enforcement, and suggests that
spectrum policy be focused on enabling unlicensed uses of the
airwaves that can assist the nation with online access.

Download a copy and decide for yourself.

NR