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  1. #61
    DJRobX
    Guest

    Re: No more "tethering" on Cingular MEdia Net

    > Perhaps, but cellular bandwidth is limited, so I personally don't think that
    > data prices will fall much below current levels.


    How limited can it be when they offer an unlimited plan and MobiTV?
    Verizon is pushing V-Cast and if it becomes even mildly popular,
    Cingular will have to beef up their network to compete. Why would
    streaming video and audio directly to a phone be OK, but some basic web
    surfing from a laptop not be OK? Greed! They just want to be able to
    keep charging the "special needs" groups more. $20 seems like a fair
    price for cellular dialup-like service. More than that? No way.
    $14.95 DSL seemed absolutely absurd just a few years ago, but it's here
    now (and offered by Cingular's parent SBC, no less.)

    These new "terms" are interesting. I'm just not sure if this is
    another example of harsh TOS verbage that's only going to be exercised
    in certain abuse circumstances (like the "no-servers" policy in most
    AUPs that is virtually always ignored). Are they really going to deny
    themselves $20/month from paying customers that suck up 30mb per month
    on a laptop, pissing them off, potentially losing them entirely to
    another carrier? Or are they just shielding themselves from true
    abuse? Or maybe they'll create a "walled garden" for MEdia Net
    logins. Just seems like that would be going backwards in a time when
    Verizon is going to be kicking them in the pants with their better
    mobile broadband network (that might actually be WORTH more than $19 a
    month).




    See More: No more "tethering" on Cingular MEdia Net




  2. #62
    movak
    Guest

    Re: No more "tethering" on Cingular MEdia Net


    EDGE is faster than GPRS but not truely high speed yet. It only operates
    at 70 to 137 Kbps. That is kilo BITS per second. Divide that by 10 to
    get kilo Bytes per second that means 7 to 14 KBps. Not fast enough for
    streaming video. What we are waiting for is UMTS which runs at 2Mbps or
    over 10x that of edge.

    Lets take a look at why any celular company would discourage tethering.
    A voice call takes up about 8 to 16Kbps while a single tether connection
    can use up to 2000Kbps. Therefore for every tether connection they can
    not take 125 phone calls. This will increase congestion at the towers.
    How many 2MB sessions could a tower handle before it's banwidth is
    exceeded? Wouldnt that cause an increase in cost due to more towers
    being built and/or the data pipe to each tower to be widened? The
    cellular system is designed to handle phones with WAP access. It is not
    designed to handle hundreds of high bit rate connections. If you think
    there is no difference between tethering and wap brousing, can you
    download and store Giga bytes of data from a file sharing network on to
    your handset? You sure can to a tethered PC. If you want to use huge
    amounts of data, it has to be paid for somehow. A wap browser uses a
    lot less data than a tethered computer.


    --
    movak



  3. #63
    John Navas
    Guest

    Re: No more "tethering" on Cingular MEdia Net

    [POSTED TO alt.cellular.cingular - REPLY ON USENET PLEASE]

    In <[email protected]> on Sat, 15 Oct 2005 14:42:00 +0000,
    movak <[email protected]> wrote:

    >EDGE is faster than GPRS but not truely high speed yet. It only operates
    >at 70 to 137 Kbps. That is kilo BITS per second.


    EGPRS(EDGE) actually operates at 100-150 Kbps, depending on device Class, in
    good signal conditions. Class 4 operates at the low end of that range. Class
    10 operates at the high end of that range.

    >Divide that by 10 to


    Actually divide by 8.

    >get kilo Bytes per second that means 7 to 14 KBps.


    Actually 18+ KBps (Bytes) with a Class 10 device.

    >Not fast enough for
    >streaming video.


    It is in fast enough for low-quality streaming video, which can be done even
    over ISDN, which is slower than EGPRS(EDGE).

    >What we are waiting for is UMTS which runs at 2Mbps or
    >over 10x that of edge.


    UMTS, which is already deployed in some areas, actually runs at typical
    downlink speeds of 220-320 Kbps.

    What we're really waiting for is HSDPA, an upgrade to UMTS with roughly double
    the speed and lower latency, expected to be available in 15-20 markets by the
    end of the year. Then we'll be waiting for HSDPA devices.

    >Lets take a look at why any celular company would discourage tethering.
    >A voice call takes up about 8 to 16Kbps while a single tether connection
    >can use up to 2000Kbps. Therefore for every tether connection they can
    >not take 125 phone calls.


    A voice call actually uses 1 of 8 timeslots on a channel for the entire
    duration of the call.

    A data connection uses 1-4 of 8 timeslots, but only when data is actually
    being transferred.

    In addition, the network can be programmed to limit the number of available
    data timeslots, particularly when load is high.

    >This will increase congestion at the towers.


    There is no real contention between voice and data, only between data and
    data; i.e., not wanting one heavy use subscriber to interfere with another
    subscribers, much like a heavy downloader on cable Internet .

    >The
    >cellular system is designed to handle phones with WAP access. It is not
    >designed to handle hundreds of high bit rate connections. ...


    It's actually designed to handle both voice and data. How much is simply a
    matter of capacity.

    --
    Best regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES:
    John Navas <http://navasgrp.home.att.net/#Cingular>



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