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TV Airwaves To Deliver Internet?

Posted by kdawson on Mon Mar 12, 2007 11:11 PM
from the net-neutrality-counterstrike dept.
roscoetoon directs our attention to a proposal from an odd assortment of tech companies — Google, Microsoft, H-P, Intel, and others — to reuse TV wavelengths to deliver first-mile connectivity. The Washington Post article is subtitled "Cable, Phone Companies Watch Warily." As well they might. One of the big content companies that the incumbent duopolists propose to soak by dismantling network neutrality, in company with some powerful allies, is striking back at the heart of their business.
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[+] News: FCC Will Test Internet Over TV Airwaves, Again 86 comments
Weather Storm writes "According to MSNBC.com, the FCC will try again to test prototypes on Jan. 24 for transmitting high-speed Internet service over unused television airwaves. The devices were developed by Microsoft and Motorola, among other corporate partners, and will be tested in laboratory and real-world conditions for three months. 'Last year, a high-technology coalition — which included Microsoft, Google Inc., Dell Inc., Hewlett-Packard Co., Intel Corp. among others — submitted prototypes they said could transmit broadband Internet service over unlicensed and unused TV spectrum, known as "white spaces." Television broadcasters and the wireless microphone industry say such devices could interfere with programming. The Initial prototype testing failed last July because the devices did not reliably detect and avoid TV programming signals and could have caused interference. If the tests are successful this time and the devices are approved, the coalition plans to introduce commercial devices for sale after the digital television transition in February 2009.'"
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  • Terrestrial DTV?
    • Re:Can you say... (Score:5, Informative)

      by AvitarX (172628) <me@@@brandywinehundred...org> on Tuesday March 13 2007, @01:11AM (#18328481) Journal
      Right now each station has 2 channels (one analog and one digital) I believe the idea is to free up spectrum when the analog broadcast is shut off. I am not 100% sure though. It also appears to me that frequency has less to do with channel with DTV.

      For example a line from antennaweb.org (my notes in parens)

      * yellow - uhf WPSG-DT 57.1(channel) CW PHILADELPHIA PA 263&#176; 2.7 32 (frequency)

      Though I guess the station would need something in the proper frequency slot to tell the TV where to look.
      • Re: (Score:3, Informative)

        Though I guess the station would need something in the proper frequency slot to tell the TV where to look.

        Nope. You can't do the whole terrestrial DTV thing without an "auto scan" sort of deallie. Your tuner scans through the frequencies, checks for signal power, and figures out whether it sees something that looks like ATSC. If it doesn't, it moves on; if it does, it starts demodulating, and listens for a little table that says "MPEG streams 1003 and 1004 are channel 57.1; streams 1009 and 1010 are 57.2" etc. and it stores that information away, then later when you tune to channel 57(.1), it goes ahead and tu

  • And there's not much to be found, but tv technology website has a little more info in this article [tvtechnology.com].
  • by Anonymous Coward on Monday March 12 2007, @11:19PM (#18327687)
    But choking on the unwieldy sentence in that write-up made up for it.
  • well (Score:3, Interesting)

    by mastershake_phd (1050150) on Monday March 12 2007, @11:22PM (#18327739) Homepage
    Id like to see more independent TV stations. Of course once there is enough bandwidth everyone can have their own TV station...
  • That might alleviate the forecast bandwidth shortage that is due to occur when TV over the internet is rolled out in force!
    • It's just an infinite loop. It's not like they'll emulate the full experience of the internet by introducing blue screens to the telev--oh wait...
  • by Ant P. (974313) on Monday March 12 2007, @11:37PM (#18327875) Homepage
    Satellite bandwidth with only the lag of the distance to a local TV transmitter. Now that would be interesting. Even more so if they could get a two-way connection going over the air...
    • The impression I got was that it was a two-way link like WiMAX but using a different frequency. In fact what isn't clear to me is how it is different from WiMAX.
  • by dbIII (701233) on Monday March 12 2007, @11:40PM (#18327895)
    Rewind back to 1988 - I'm at a community radio station (mostly washed the dishes and played with whatever gear was lying around) and a bright electrical engineering graduate student there worked out how to easily and on a low budget get a fair bit of bandwidth out via the FM signal without disrupting the radio broadcast. The problem then as now is how do you know what data to send? You can't easily get the request packets if your bandwidth the other way is low even if dial-up has improved a lot. That is the main reason you didn't see this in 1988 or proir, and the main reason why people like the engineer mentioned above moved on to two way microwave links.
    • I recall a demo circa 1985 or 1986 at a Usenix of a scheme to send a continuous Usenet feed in the blanking interval of a TV signal. It certainly worked in pilot projects but I guess the broadcasters couldn't figure a way to make it worthwhile (ie profitable).

      Of course the required bandwith for "a continuous Usenet feed" was orders of magnitude lower in those days.
      • Re: (Score:2, Interesting)

        this probably evolved into Teletext.
        • Teletext was around before the late 1980s and doesn't need much bandwidth. You can carry quite a few megabits on the unused bits of an FM or TV signal and feed extra data via transmitters built in the 1970s - or so I was told at the time.
          • I guess RDS uses a similar technique? Last I heard, it was very popular in the UK and europe, but not so in the US or Asia.
  • No way... (Score:5, Funny)

    by creimer (824291) on Monday March 12 2007, @11:44PM (#18327919) Homepage
    If over the air comes in like regular TV in my area, the internet will be fast and sexy with a Spanish accent.
  • by michaelmalak (91262) <malak@acm.org> on Monday March 12 2007, @11:55PM (#18328005) Homepage
    Here I was about to lambast the submitter for using "First Mile" instead of "Last Mile", only to discover after Googling that "First Mile" was coined [firstmilesolutions.com] in 1997:

    The term "First Mile" was coined by Titus Moetsabi, a poet/ developmental communications specialist, at a Southern African Rural Connectivity Workshop in Harare in February, 1997. He was the first to turn the "last mile" concept on its head and help us think instead of rural communities from the user perspective -- the first mile, not the last. This term expresses a more equitable and far less top-down approach to the challenge of providing universal connectivity, regardless of location and income.
    The UN [fao.org] has a more detailed account of the coining of the phrase.
    • That,s the problem with you northern hemisphere folk... you're always looking at things from the wrong side.

      Still WTF is a Zimbabwean poet doing coining Geeky Computer terms? Fuck off buster! I don't try making clever terminology about poetry.

  • Light on details (Score:3, Informative)

    by imunfair (877689) on Monday March 12 2007, @11:59PM (#18328045) Homepage
    The article is *extremely* light on details, but if they're talking about one way signals like current radio then you'd only be able to cache the internet on a set top box, for instance... say if it rebroadcast a set of sites every 24 hours in a continuous loop. Otherwise it would have to act similar to wifi... but those would be some high power transmitters in both directions it seems - to get the distance you would need for this to work as a conventional wifi sort of link.

    I'm not an engineer or anything, just basing the power off the amount/size tower they need to cover an area. One possibility could be to use regular radio towers to broadcast on their end, and small directional dishes to send user requests?
    • but those would be some high power transmitters in both directions it seems - to get the distance you would need for this to work as a conventional wifi sort of link.

      One of the details the article is light on is the organization of the system. It might not be using high powered transmission at all, but serve a much smaller area similar to cellular. Just because it uses the same frequency as TV doesn't mean they have to build their towers the same way. By virtue of the signal being digital, there is a bit
  • so (Score:4, Interesting)

    by TinBromide (921574) on Tuesday March 13 2007, @12:03AM (#18328081)
    Why would the cable/phone companies be worried about television signals?

    Last i checked, TCP was a 2 way communication for every message. Every packet is sent and gets an acknowledgment or some message if not received (like only go 13 out of 15 packets). Also, last i checked, my computer doesn't currently have the equipment to transmit television signal over a mile. So, how are those packets going to be sent back? Cable? Phone line? Unless google finds a way to deliver the internet via a non tcp/ip format or puts a 1.21 gigawatt antenna in every home, the whole error checking feature of tcp/ip is going to keep a bit of fat for the phone/cable companies.
    • Re:so (Score:5, Insightful)

      by Bluesman (104513) on Tuesday March 13 2007, @12:44AM (#18328345) Homepage
      The path a TCP connection takes doesn't have to be the same going forward or backward. It doesn't even have to be the same path between multiple packets.

      Since most people don't use nearly as much upload bandwidth as download, a dial-up upload with a very fast over the air download would be sufficient for the vast majority of users.

      Many people in the U.S. are still on dial-up. If Google offered them a way to dramatically increase the speed of web page loads for an extra $2 a month, they'd probably take that option over the much more expensive DSL or Cable services.

      Pretty smart move.

      • Many people in the U.S. are still on dial-up. If Google offered them a way to dramatically increase the speed of web page loads for an extra $2 a month, they'd probably take that option over the much more expensive DSL or Cable services.

        Your comments and this plan would have made more sense about 5 years ago. DSL is widely available now and it's not that expensive. Now that the telcos have rolled out the DSL infrastructure and bandwidth prices have fallen, the costs of operating a DSL ISP are pretty much the same as dial up. Eager to grab the dial up users, DSL providers have thus dropped the price on low-end DSL considerably. For example, AT&T/SBC offers 768Kbps DSL for $14.99 a month, which was the price point for dial up for a long

  • I mean, John Kerry introduced legislation [senate.gov] in January to direct the FCC to do this, and the FCC has been issuing rules last year to get this going for WiMax. The TV frequencies turn out to be really helpful for getting signal to mountainous areas. (gee, big surprise why that range was originally selected).

    I suspect there's more to the story than a bunch of tech firms saying, "me too!", but the article doesn't cover what that might be.
  • Hello? (Score:3, Insightful)

    by no1nose (993082) on Tuesday March 13 2007, @12:23AM (#18328211)
    1999 called. They want their Geocast back... The idea of delivering internet via airwaves is so NOT new. It never got off the ground then, and it won't now. If you want wireless internet, get a $50 router or a $60/month Verizon aircard.

    Done.
  • by sconeu (64226) on Tuesday March 13 2007, @12:25AM (#18328223) Homepage Journal
    HELL NO!!!!

    This opens the door for the FCC to regulate content on the Internet.
    • Too late. The FCC already regulates point-to-point microwave data links and satellite uplinks/downlinks used for data transmission. The sky has not fallen.
  • by drkfce (932602) on Tuesday March 13 2007, @12:39AM (#18328327)
    Woah, waoh, woah, woah.... Woah... I thought this area of bandwidth was supposed to be reserved for emergency services, when the analog TV's are shut off in 2009?
    • Re: (Score:3, Insightful)

      I thought this area of bandwidth was supposed to be reserved for emergency services

      So did I, until I noticed that the new digital television channels are using the same VHF and UHF frequencies that analog television does now.

      I'm guessing that the non-revenue generating character of emergency services radio has a lot to do with this. There's no money with which to buy congresscritters.

    • I thought this area of bandwidth was supposed to be reserved for emergency services,

      Emergency services don't need several hundred MHz of bandwidth, and couldn't use all of it if they tried.

      They'll be given a small chunk of it, but the vast majority of the lower TV frequencies will still be empty.
  • You guys are so closed mined, they're gunna to send the all the interwebs over the airwaves-tubes. Easy. Brilliant I rekon
  • by Jay Carlson (28733) on Tuesday March 13 2007, @01:01AM (#18328425)
    What a great idea. Maybe there should be a standards track RFC for this? Maybe from Microsoft?

    Oh right, there was:

    RFC 2728: The Transmission of IP Over the Vertical Blanking Interval of a Television Signal [faqs.org]

    This RFC proposes several protocols to be used in the transmission of IP datagrams using the Vertical Blanking Interval (VBI) of a television signal. The VBI is a non-viewable portion of the television signal that can be used to provide point-to-multipoint IP data services which will relieve congestion and traffic in the traditional Internet access networks. Wherever possible these protocols make use of existing RFC standards and non-standards.

    [...]

    Today, IP is quickly becoming the preferred method of distributing one-to-many data on intranets and the Internet. The coming availability of low cost PC hardware for receiving television signals accompanied by broadcast data streams makes a defined standard for the transmission of data over traditional broadcast networks imperative. A lack of standards in this area as well as the expense of hardware has prevented traditional broadcast networks from becoming effective deliverers of data to the home and office.

    Of course, back in 1999 we all knew what Zork and null modems were. Oh brave new Slashdot.
  • This is actually quite an interesting concept. If memory serves, the typical cable modem, uses the bandwidth within the allocation of a single cable channel (video has quite a high bandwidth demand). So utilizing the over-the-air equivalent for local connections makes an awful lot of sense (adding an extra channel or two for redundancy and error correction, due to the increased noise of radio).

    I used Direcway satellite for a couple of years, and it was good, but pricey and high latency, due to the trip to
  • I hope they're not planning to cache the whole of the www on a reciever, I haven't finished reading my copy from a couple of years ago yet.
  • by vtcodger (957785) on Tuesday March 13 2007, @02:23AM (#18328813)
    ***Several analysts said a TV-spectrum system might make the most sense in rural areas, where high-speed Internet access via phone or cable lines is expensive to deploy. Small companies might build some towers, beam white-space spectrum to farm homes and cabins, and connect it to an Internet provider, they said.***

    A few years ago when we were looking at ways to bring broadband to a rural school in Vermont, I trecked up to the highest point we could reasonably put an antenna. What I saw was trees -- hundreds of trees. Maybe thousands of trees. It was pretty clearly going to take us several intermediate relays to get to a place where we could connect to existing broadband. And each intermediate was going to need power and access and probably a tower to get above the trees. Scratch that idea.

    I think that using TV frequencies for broadband wireless may be a workable idea in the plains and Great Basin. I've managed to raise a cell phone signal in some pretty unlikely places out in the west. But I don't think it is going to work very well in areas East of the Mississippi since most of the potential users are going to be in valleys and surrounded by trees. And no, cell phones didn't work at the school although there was a spot out at the end of the driveway and a couple of hundred yards down the road where one could raise a couple of bars if you held the phone just right.

    (Thanks to a peculiarity in the local regulatory structure, we were finally able to get a T1 at reasonable rates.)

  • Imagine using the TV Airwaves to broadcast internet TV.
    Now if only they could develop an optimized protocol for this.
  • This is the very reason why Analogue TV is being cut and the change over to Digital to free up badly needed spectrum for such rich services.
    • Re:What??? (Score:5, Insightful)

      by sumdumass (711423) on Monday March 12 2007, @11:28PM (#18327785) Journal
      If net nutrality is dismantled, Microsoft has some problems. This is more likley a CYA deal.

      Microsoft has live and everything comming from there. PLus they have service packs and the such. Most people are satisfied with them on providing updates and service packs from the web. But if net nutrality goes out the door, they will be in a situation were they will have to pay for this too or suffer an angry mob of customers wanting to kow why they patch to fix the whole left in windows that jst caused the last virus infection they had to pay someone else to get rid of is taking as long as it would on dial up.

      It just makes sence for them to make sure there is a way around it.
      • That really made me think about something.
        I was reading recently about Microsoft SPOT; essentially, what microsoft has been doing since around 2002 has been rolling out these cool watches that get news & weather from FM subcarrier data transmissions; they have made available a 3rd-party SPOT development kit, which contains "the Ollie SoC, the ".netcpu CPU Module" integrates 4MB of nonvolatile Flash memory, and a number of I/O ports".

        What I'm thinking that THEY might be thinking, is to embed these device
          • I just use Aluminum foil wrapped around my ball cap; seems to work.

            I'm Curious: was that a joke, or do you actually think (from what I posted) that I'm paranoid & delusional? I'm not saying that I'm not or anything, it's just that my sarcasm detection unit and my troll-o-meter seem to be on the fritz.

            • Re: (Score:3, Interesting)

              look at what your suggesting pretend somebody else wrote it and see how paranoid it seems? After all we have cable modems ethernet and dialup to report on windows users already.

              All this is, is just another method of data transmission. Satellite (SKY) has been broadcasting data down to customers for years. A digital terrestial broadcast is no different, there isn't really that much difference between packets of video data, and data.

              I believe upstream is provided by a phoneline. Interestingly and perh
    • You clearly have no idea as to the motivations driving Microsoft these days.
    • Its a bit of a stretch from thier core business model.

      MS's core business is undergoing a process of commoditization & attacks from all directions. In case you haven't noticed, they're wildly flailing about in all directions (MSN, xbox, phones, etc) trying to find new markets to expand into.

      Unfortunately for them, (but fortunately for consumer choice), everything they've tried that they can't leverage their monopoly in productivity software & operating systems to expand into has been a financial fail
        • Re:What??? (Score:4, Insightful)

          Yeah right Sherlock. They've been very successful in the game console market and may actually beat out

          Please reread my comment. I said financial failure. Maybe the xbox360 will beat out the PS3, but MS's games division hasn't made any money yet.
          • Re:What??? (Score:4, Insightful)

            by JPriest (547211) on Tuesday March 13 2007, @01:33AM (#18328581) Homepage
            AFAIK MS's games division was making money on PC games like Age of Empires before the creation of the Xbox. Also, when you have a monopoly, if you launch a product that helps to protect it could be considered a success even if it does not bring in a profit.


            This is the reason WindowsCE is a success, it places a road block in the way of anyone wanting to assault the desktop by expanding from PDA to Laptop etc.

            Nobody is going to write 30 million lines of code over night to compete with Windows, they have to find a niche like Cell phones, PDA's, and game consoles and try to leverage it. Xbox and WindowsCE are about taking the fight to them, if competition means the markets has lower or no profit margins, that could also be a good thing.

      • Re: (Score:3, Insightful)

        Screwing over the customers. At first blush this looks to be helping the customers. Definitely a departure.