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Experimental 4G Phone Service Faster Than Cable

Posted by ScuttleMonkey on from the screaming-speeds-for-screaming dept.

JymBrittain writes "NewScientist reports that Japanese researchers have achieved blistering rates of transmission for cell phones that allowed for viewing of 32 high definition video streams, while traveling in an automobile at 20 kilometers per hour. From the article: "Officials from NTT DoCoMo say the phones could receive data at 100 megabits per second on the move and at up to a gigabit per second while static. At this rate, an entire DVD could be downloaded within a minute." These transmission rates were achieved using new experimental methods of multiplexing."

3 of 231 comments (clear)

  1. A minute? Sure... by dasOp · · Score: 5, Interesting

    if your device has enough memory to hold it and is fast enough cpu-wise to sustain a decent gbit pipe.

    Regular consumer pc having drives fast enough to get a dvd in a minute? Good thing we nerds get to the good stuff before anyone else. :)

  2. Re:Wow by nmb3000 · · Score: 5, Interesting

    Given that you could get a 50mbps DSL connection for less than $40/month in Japan, I would assume not much.

    Hey now. Some parts of the US aren't quite as far behind as others :)

    For example, in my city they are just finishing installation of a citywide fiber network. Very freaking awesome, but what's better is that I can get (and am going to) an amazing Internet connection. For $40/mo I get 20Mbps download and upload with a public IP. That's right, $40/mo, and when I asked about running my own server they said, "That's fine, just don't host anything illegal." Double that and you get unlimited local and long distance VoIP and local cable in addition to 20Mbps Internet.

    See? Fiber really is good for you! :)

    --
    "What do you despise? By this are you truly known." --Princess Irulan, Manual of Muad'Dib
    /)
  3. Cable will use a similiar tech in the near future by papasui · · Score: 5, Interesting

    DOCSIS 3 will use a channel bonding technique to achieve similiar speeds through coaxial. Essentially by reclaiming analog channel space by converting to all digital systems (I'm beta testing this right now) in the next 3 years that same analog space can be phased out giving back all the waste channel space without needing upgrade the cable system itself to support higher frequencies. What this basically does in layman terms is instead of sending all the data across the same frequency it breaks the data up across multiple frequencies in parallel.

    Something to the effect of:

    Old
    699Mhz 11111111
    New
    699Mhz 1
    689Mhz 1
    679Mhz 1
    669Mhz 1
    659Mhz 1
    649Mhz 1
    639Mhz 1
    629Mhz 1

    It probably will take 6mhz, not 10mhz but by allowing some space between the carriers it avoids some noise between them.