Slashdot Mirror


White Space Plan Would Reuse TV Spectrum

An anonymous reader writes "A collection of companies including Microsoft, Google and Motorola are teaming up for a new white space wireless network plan. The White Spaces Database Group, as it will be known, plans on formulating a plan to create, govern and maintain a wireless broadband network on abandoned analog television spectrum. When the spectrum is finally vacated in June, the group hopes that system in place which will allow for the creation of an open wireless broadband network which will be accessible by any device. The FCC officially approved keeping the spectrum open back in November, despite staunch opposition from telco firms."

38 of 150 comments (clear)

  1. White space? by Anonymous Coward · · Score: 5, Funny

    Why you being racist like that? Do whites really need more space? Don't they have enough already?

    1. Re:White space? by Anonymous Coward · · Score: 3, Funny

      I guess if it uses multiple wavelengths on a single strand, we'll have to call it "colored fiber."

  2. Re:Govern? by geekoid · · Score: 3, Insightful

    What? you want any large corporation to just be able to take it all for themselves?
    That's really the other choice. Govern it, or let the biggest bully take it.

    --
    The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
  3. How the telcos will respond by pieterh · · Score: 4, Insightful

    This is a very profound threat to lucrative mobile cartels. Yet it's absolutely necessary as a step on the way to opening the airwaves to serve a real global Internet. My prediction: the telcos will respond with patent litigation, and with "think of the children and *AA" legislative proposals to tie the new open networks up in monitoring, filtering, and other restrictions on use.

    1. Re:How the telcos will respond by commodore64_love · · Score: 4, Informative

      I'm not happy about it.

      I live in Lancaster PA. The TV Band (whitespace) Devices will broadcast over top of, and block my Baltimore/Philly stations. No more 2,3,6,10,11,12,13,17,35,45,57,61,65 - no more Orioles, Raven, Phillies, or Eagles games. Less variety & loss of free television is not something I'm looking forward to.

      --
      "I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
    2. Re:How the telcos will respond by commodore64_love · · Score: 4, Informative

      >>> Hey you, wake up! Your (analog) stations are going away in June, whether this wireless broadband network gets off the ground or not.

      Hey you, wake up!

      The digital stations will still be there you dope. On channels 2 to 51. Duh.

      --
      "I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
    3. Re:How the telcos will respond by n6kuy · · Score: 4, Funny

      > I live in Lancaster PA.

      No worries. You Amish don't watch TV anyway.

      --
      If you disagree with me on social issues, then it's pretty clear that you are a narrow-minded bigot.
    4. Re:How the telcos will respond by ion.simon.c · · Score: 2, Informative

      The TV Band (whitespace) Devices will broadcast over top of, and block my Baltimore/Philly stations.

      Prove it. Oh, wait... you can't, as there currenlty are no licensed whitespace devices out in the market.
      The FCC is requiring that whitespace devices not interfere with DTV and wireless mic signals. I bet that you would get a rapid and effective response from the FCC if you *really* did have a whitespace device that was fucking up your TV signal.

    5. Re:How the telcos will respond by commodore64_love · · Score: 3, Informative

      Non-relevant. The TV Band (whitespace) Devices will broadcast over top of my Baltimore/Philly stations, since they are considered "out of market" for my town.

      --
      "I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
    6. Re:How the telcos will respond by commodore64_love · · Score: 3, Informative

      >>>The FCC is requiring that whitespace devices not interfere with DTV

      You mean *in-market* DTV. Out-of-market DTV is not protected, which is why I will lose the Baltimore-Philadelphia stations.

      --
      "I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
    7. Re:How the telcos will respond by ion.simon.c · · Score: 2, Insightful

      You're speaking of it as if it is a certainty. You might want to wait and see just how good these devices are. I bet that you'll be pleasantly surprised by the state of the computer-controlled radio art.

    8. Re:How the telcos will respond by Elwood_Black · · Score: 4, Insightful

      BOTH of you wake up! Digital TV channels are NOT as wide as analog TV channels. Also, the digital TV signal is virtually immune to low level interference. If you look on the FCC database you can already find extensive use of the "in between" space between other radio services channel allotments. There are two-way radio systems, monitoring devices, various digital links and all sorts of other goodies, even radio astronomy. Currently on the spectrum chart you can find multiple frequency ranges allocated for several radio services. (source:http://www.ntia.doc.gov/osmhome/allochrt.pdf) The telco's will respond by finding a market to sell to. For example, many automatically controlled radio systems are not allowed to be controlled by a link that is part of the primary radio channel. Telephone companies can fill this need the same way they have for the past 70 years - they sell dedicated lines meant for the remote control of communications equipment. The reason comm equipment cannot be remote controlled over its own radio channel is because if something goes wrong with that device that requires it to be shut down its radio channel may be compromised. Telephone lines don't use the radio link, its just a pair of copper wires connected to a switching device. We do this all the time in the broadcast and communications world.

  4. Re:Govern? by ushering05401 · · Score: 2, Interesting

    Of the players listed in the summary, one has a history of impeding development in the marketplace to increase dependence on their own products.

    This process will be open you say? So was MS XML standard ratification process.

    905 of my income comes from working with MS products, but I don't want them anywhere near processes like this. Just my .02.

  5. This is social justice by cryfreedomlove · · Score: 4, Interesting

    This could provide critically needed rural access to broadband. It would also create competition for local DSL and Cable Model monopolies. There is no downside here for consumers.

    1. Re:This is social justice by nine-times · · Score: 5, Insightful

      Oh, it's terrible for consumers. First, not auctioning off this spectrum deprives tax payers of money. When you think about it, it's really criminal that the government doesn't auction off all of our services and rights to private enterprise. We could make SO MUCH money!

      Also, by providing "free" things, you're depriving companies of revenue, which will damage the economy. They'll have to charge more for other services, and probably cut jobs too. We want the telecoms to make as much money as possible, because then the economy will thrive.

      (Of course I'm not serious, but apparently some people think like this.)

    2. Re:This is social justice by commodore64_love · · Score: 2, Interesting

      >>>There is no downside here for consumers.

      Actually there's one very major downside: A rural viewer might be watching channel 10 to catch-up on the news, and suddenly the kid next door turns-on his TV Ban/whitespace Device and starts broadcasting over the same channel 10. The rural viewer will see garbage just like this:

      http://www.interferencezones.com/

      --
      "I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
    3. Re:This is social justice by JustNilt · · Score: 2, Informative

      Actually there's one very major downside: A rural viewer might be watching channel 10 to catch-up on the news, and suddenly the kid next door turns-on his TV Ban/whitespace Device and starts broadcasting over the same channel 10.

      Except that the T signal is broadcast on a different part of the radio spectrum, not the one the whitespace device will be on. In addition, the whitespace devices use only UNUSED spectrum, following methods already shown to be effective. Enough astroturfing already.

      --
      You know the thing about UDP jokes? I don't care if you get it or not.
    4. Re:This is social justice by fermion · · Score: 2, Interesting

      Actually, the way I understand digital it is unlikely the rural viewer will get anything at all. In the past, rural areas could get a signal just by mounting a large receiving antenna. Now, with the way digital works, it is unlikely that anyone who did not get excellent analog coverage is going to get nothing without either a station that retransmits content or a satellite service. Even in the city, there are stations that I have trouble receiving. The least of the rural worries are interference. It is seems they will be lucky if there is something to interfere with.

      --
      "She's a scientist and a lesbian. She's not going to let it slide." Orphan Black
    5. Re:This is social justice by RocketRabbit · · Score: 2, Insightful

      Rural viewers can always mount a directional antenna aimed at the nearest large market of their choice. I agree, the whole thing stinks, but it's not the end of the world.

  6. Whitespace?? by Foofoobar · · Score: 3, Informative

    I wonder if their documentation will be written in whitespace.

    --
    This is my sig. There are many like it but this one is mine.
  7. Re:Return Path? by geekoid · · Score: 4, Informative

    Health concerns have scientifically been oput to rest. There isn't really anything you can do about peple who just make shit up and ignore facts.

    --
    The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
  8. Re:Return Path? by Who+Is+The+Drizzle · · Score: 3, Insightful

    Should be expect yet another cellular radio network? Is that a good thing, given that health concerns have not been laid to rest completely?

    Sine when have they not been put to rest? Just because a bunch of loonies disagree with the science that debunked their claims doesn't mean their concerns haven't been put to rest.

  9. Re:Well then by geekoid · · Score: 2, Informative

    Are you qualified? being open doesn't mean any yahoo can run the thing.

    --
    The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
  10. Re:Welcome to Niggerbuntu by Anonymous Coward · · Score: 5, Funny

    That you actually put effort into copying and pasting this product of an unhappy childish mind suggests that you should look for professional help and/or consider medication.

    Some points of accuracy for your text. First, the attempt to dismiss African culture with insults does not work. There are many good ways to criticize Africa, but they do not rely on contempt for the amount of melanin in the skin. You need to find better metrics. There is, despite the attempts of thousands of people who share your medical condition, no correlation between skin color and level of "humanism".

    Second, you attempt to associate free and open source software with "stealing". This is a self-defeating insult since it's so obviously the opposite of the truth. As sarcasm, it does not work. I'd suggest calling it "amateuristic", or "naive", or even "chaotic". But "stealing" does simply not hurt.

    To help you, it's as if someone gave you a large chocolate cookie, and you threw it away, saying it was excrement. Basically, no-one would mind, and you would look like a fool, which you are.

    Finally, you appear to evoke the Creationism vs. Evolution fights by referring copiously to monkeys. Again, if you want to insult humans, do so by pointing to aspects that are truly offensive, such as their ability to waste the bounty of cheap modern-day communications with drivel like your post. Referring to our evolutionary heritage - while perhaps the most accurate part of your text - is simply not hurtful. It's like pointing to a car and saying, in a sneering voice, "look, a mechanical horse!"

    My advice would be to see, in order, a physician, a pharmacist, and an English teacher.

    Thank you
    -- Slashdot

  11. Re:Govern? by RCourtney · · Score: 3, Interesting

    I don't like the sound of that.

    Why not? All the companies listed have a vested interest in getting rid of the middle-man (telcos) in order to ensure maximum profit for their respective businesses. Google wants to make sure you can see their ads on any device anywhere. Motorola wants to make a lot of those devices. Microsoft wants to do both. The telcos have done nothing but limit all of these companies (and thus, us, the consumer) with their strangle-hold on the spectrum thus far.

  12. Re:Automatically say no. by Abcd1234 · · Score: 4, Funny

    Any time Microsoft and Google decide to partner on something, you know the rest of us are just going to get screwed.

    Because why, exactly? And before you start, try going with a reasoned argument, rather than paranoid ramblings. I know that's asking a lot, but...

  13. Re:Welcome to Niggerbuntu by Anonymous Coward · · Score: 3, Insightful

    Your excellent critique almost makes it seem like a good idea to respond to trolls. Nice work!

  14. Re:Automatically say no. by hobbit · · Score: 2, Informative

    Any time Microsoft and Google decide to partner on something, you know the rest of us are just going to get screwed.

    Right now, with many of us having only one choice for the local loop (or is it only called the last mile these days? I'm showing my age), we're already screwed. This initiative is the very competition you seek.

    --
    "Wise men talk because they have something to say; fools, because they have to say something" - Plato
  15. Re:Welcome to Niggerbuntu by BoChen456 · · Score: 3, Interesting

    Is the root troll an auto text generating bot? Hmm... It might be an interesting project to write an auto troll feeding bot.

  16. Re:Return Path? by Chyeld · · Score: 4, Insightful

    See friend, that's the difference between the human body, which is imperfectly understood, if at all, and say... RADIO WAVES, which we pretty much understand all significant issues of.

    If you give me a pill and say "We don't think this will kill you.", I have a legitimate concern.

    If you give me a cell phone and say "its impact on you is less than the impact of the background radiation you are exposed to daily 24/7, we know this via several methods, most significantly a through understanding of how radio waves propagate." I don't.

  17. Summary doesn't make sense by nsayer · · Score: 2, Informative

    Are they talking white space or are they talking 700 MHz?

    White space means unused TV channels, which means 470-700 MHz after the transition.

    What it sounds like, however, is that they're referring to the rules that will govern the new 700 MHz allocations that were auctioned last year.

    There is no "abandoned" analog bandwidth. The top 100 MHz of the UHF TV band were reallocated to other services and the TV broadcasters were "packed in" closer together thanks to ATSC's less stringent adjacent channel spacing requirements.

  18. UHF Wireless Microphones & Ham Radio by Gazoogleheimer · · Score: 5, Interesting

    As both a sound engineer at a theater and an amateur radio operator, I fear that these devices will not be made to the standards required for such...versatile transmitters and that they will not properly 'check' for signal presence. It's not too much of a problem for ham stuff (stay out of my 440MHz, I'm happy)--but UHF wireless microphones in theaters utilize unused UHF television channels. I don't want to come in one day, turn on all of my Shure receivers, and have to rechannelize all of my microphones which I already set carefully. I don't know if my wariness is justified, however.

  19. Re:Govern? by Sylver+Dragon · · Score: 3, Interesting

    I don't know, the last time a chunk of spectrum was posted with "here there be dragons!" and otherwise left alone, we got Bluetooth and wireless networking.

    Sure, there are some basic rules which keep the different devices from trampling each other, and there are licenses within that spectrum which are allowed to dominate anyone else and may not be interfered with. So, imagine what such a useful chunk of spectrum, without any licenses encumbering it, and left as a playground for anyone to use could result in.

    On the whole, I'd love to see the vacated spectrum kept as a public resource with anyone allowed to put anything into it which they wish. The understanding would simply be that others will operate in that space as well so any device needs to be fault tolerant, and ideally, play nice with others.

    Of course, the Federal Censorship Commission (FCC) being what it is, I imagine that we'd quickly see rules slapped onto it about "indecent" content.

    --
    Necessity is the mother of invention.
    Laziness is the father.
  20. Re:Are those UHF Wireless Mics licensed? by Gazoogleheimer · · Score: 2

    They are unlicensed, however when one has twenty-five or so multi-hundred-dollar pack systems that our school theater purchased only about a year ago. And no, to the other replier--they are in no way breaking the law, for they are in the milliwatt range and in proper allocation by the FCC and USDOC. There are very few 'digital' models for spread spectrum, and the analog packs have no reception issues (although they need companding to squeeze enough dynamic range in.) It would be different if this equipment was legacy...but it's brand new. Yes, there is no "right" to not receive interference (although I do not believe they are precisely part 15) as with licensed spectrum, like the ham bands I and many others use--however I myself have adored the persistence of analog radios to allow the odd excitement of scanning.

  21. Re:Return Path? by Ocker3 · · Score: 3, Interesting

    you've just disproved your own point. we're Not 100% sure how the human body works, and so we're not 100% sure how radio waves affect it. Just because we understand how to send and recieve radio waves, doesn't mean we always know what happens when we bounce a lot of them off of cells in the human body. Hopefully not much (I carry a cell phone all day), but I try to minimise my exposure if I don't need to have it on me. If we're not sure if something is extremely, moderately or mildly dangerous, or even innocuous, being careful with it until we're sure is perhaps a better plan than simply saying "we're pretty sure this is A-OK, so go wild." We've had problems with technology before, DDT, X-Rays (Marie Curie died from studying them), asbestos, all had/have their uses, but need to be treated with appropriate respect.

  22. Sorry to break this to you... by dtmos · · Score: 5, Informative

    ...but if your wireless mics really are in the TV bands, and really aren't Part 15 devices, then they're Part 74, Subpart H devices, which do require a license. There are no other options. You're one of many who've been sold a bill of goods by unscrupulous manufacturers of these microphones which, by law, can only be licensed to television stations, broadcast networks, cable television systems, motion picture producers, television program producers, and Multipoint Multichannel Distribution System (MMDS) licensees (Title 47 USC, 74.832). See this for a pretty good, if slightly dated, FAQ on what's required to license a wireless microphone in the US.

    These microphones typically will be offered no protection against interference from whitespace protocols like the IEEE 802.22 standard. Note that the IEEE 802.22 group is also in the final stages of standardizing a beacon protocol, IEEE 802.22.1 [pdf]. This beacon is to be present whenever the (licensed) wireless microphone is in operation, and produces a signal easier to detect (at a greater range) than the microphone itself, so that cognitive white space secondary users can more reliably determine that that television channel is occupied and move elsewhere. This system avoids interference to the wireless microphone by the secondary user.

  23. Only you need to wake up... by chaboud · · Score: 4, Informative

    First off, ATSC channels are the same 6MHz as NTSC channels.

    Secondly, if you take a peek at a spectrum analyzer, you'll see a big, fat, non-peaky pedestal of signal for digital TV. It's about as immune to low-level interference as I am to ebola.

    Thirdly, radio astromony is given a "big" empty space (channel 37).

    Fourthly, the day that we call 100mW "low-level interference" is the day that we all, women included, have seven testicles.

    Fifthly, these devices are so overpowered that they knock out cable TV.

    Sixthly, there are ways (other frequencies, spread spectrum, burst transmission) to control high-bandwidth wireless devices wirelessly.

    Seventhly, I had to go up to "sixthly." If you're really in the broadcast and communication "world" (do you mean industry?), you should consider boning up or getting out.

    1. Re:Only you need to wake up... by chaboud · · Score: 2, Interesting

      I'll take analog blipping over MPEG dropped-p-frame-ing, but your point that the signal itself doesn't directly denote error-resistance is valid. What that signal causes a broadcaster to do (need to broadcast at a higher power) is the more important thing. It's worth noting that the FCC defines transmission power differently for NTSC and ATSC signals, so we can't be completely apples-to-apples on this.

      The spectrum lets us know what the transmission power looks like (thinking about the integral of the spectral print of the signal), and it just plainly takes more energy to bring the ATSC pedestal up to NTSC luma-carrier levels. This matters for a few reasons:

      1) NTSC is pretty robust to interference that isn't on its peaks.
      2) White-space devices that don't use GPS for market detection are required to have only limited SNR sensitivity. They'll clobber any signal if they want to (they're orders of magnitude closer to the viewer), but they would want to less with NTSC signals (provided that the detection worked at all).
      3) When you step on any piece of an ATSC signal, the house-of-cards MPEG transmission comes apart in a really painful way (over-the-air in inclement weather is a good way to experience this).

      I quite happily welcome the ATSC transition, but white-space devices are going to clobber long-distance digital TV viewing badly. There isn't a big luma-carrier spike to detect and avoid with ATSC signals (see: this for pictures). It's going to be ugly.

      At least it will be ugly in HD.