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LTE Watch: Size Matters

Dan Jones
LR Mobile News Analysis
Dan Jones, Mobile Editor
1/29/2010

Stop us if you've heard this before, but in the world of Long Term Evolution (LTE), size matters -- even if an operator can work to make the most of the channel size that they've been blessed with:

  • That's the simple reason why Telia Company 's initial LTE network offers faster download speeds than Verizon Wireless is promising for its proto-4G network. The Swedish operator networks have tested at around 25Mbit/s on the downlink; Verizon is so far promising 5Mbit/s to 12Mbit/s. (See The Confusing World of LTE Speeds.)

    This, as a reader points out, is because TeliaSonera has a bigger pipe to play with. The Swedish operator swiftly moved to 20MHz channels for LTE, while Verizon has 10MHz to work with.
  • Brits, however, are unlikely to get a taste of LTE's fat pipes until 2011, even as other European operators move ahead with the new technology. The UK government has pushed back the auction of the 2.6GHz spectrum that LTE will use until 2011. The auctions were originally planned for 2008.

  • U.S. regional operator Commnet Wireless, meanwhile, is working with ZTE Corp. (Shenzhen: 000063; Hong Kong: 0763) to deploy a trial network that supports both LTE and CDMA in parts of Arizona, New Mexico, and Utah. This is ZTE's first LTE network contract in the US, although it plans to supply LTE devices to MetroPCS Inc. (NYSE: PCS) for its planned deployment in late 2010. (See Ericsson Lands LTE Gig at MetroPCS .)

  • Nokia Networks has this week stepped up to claim the trophy for the fastest LTE download that can be wrung out of a USB modem. The vendor says that it clocked a data connection of 100Mbit/s on its trial network in Espoo, Finland, using a device from LG Electronics Inc. (London: LGLD; Korea: 6657.KS) . This is the maximum speed achievable by what is classified as a "Class 3 LTE terminal."

  • These kinds of devices could be just what the doctor ordered for Verizon when it gets LTE networks up and running. DSL Reports claims that part of the real strength of LTE for Verizon is getting customers weaned off the copper nipple and switched on to a cheaper wireless substitute.

    Oh yeah, did anyone see the LTE iPhone at the launch of the Apple Inc. (Nasdaq: AAPL) iPad this week? Thought not.

    Here's the best of the rest on LTE:

    — Dan Jones, Site Editor, Unstrung

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    joset01
    joset01
    12/5/2012 | 4:43:50 PM
    re: LTE Watch: Size Matters


    From the article linked in the piece:


     


    ""The network roll out is continuing in both networks and the suppliers have a little different release plans. Today, the Swedish network runs on 10 MHz and the Oslo network runs on 20 MHz but in a couple of weeks both networks will run on 20 MHz. That's way the speed differs right now. "


     





    sineira
    sineira
    12/5/2012 | 4:43:50 PM
    re: LTE Watch: Size Matters


    So the Verizon Network should be just as fast as the TeliaSonera Stockholm Network.


    What they want to promise customers is something completely different.

    sineira
    sineira
    12/5/2012 | 4:43:50 PM
    re: LTE Watch: Size Matters


    The TeliaSonera network was deployed on 10MHz in Stockholm and 20MHz in Oslo and speeds of 50Mbps and 100Mbps respectively.


     

    sgan201
    sgan201
    12/5/2012 | 4:43:49 PM
    re: LTE Watch: Size Matters
    <div>


    &lt;&lt; The TeliaSonera network was deployed on 10MHz in Stockholm and 20MHz in Oslo and speeds of 50Mbps and 100Mbps respectively.&gt;&gt;


    Sineira,


    1) I assume that the LTE is running in FDD mode.


    2) So, when you say 10MHz, you are saying 10MHz UL and 10 MHZ DL.&nbsp; Am I correct??


    Dreamer


    &nbsp;


    &nbsp;

    </div>
    sgan201
    sgan201
    12/5/2012 | 4:43:48 PM
    re: LTE Watch: Size Matters


    Sineira,


    Verizon has only 2 X 10Mhz of spectrum.&nbsp; So, how could they deploy 2 X 20MHz LTE??


    Dreamer

    sineira
    sineira
    12/5/2012 | 4:43:48 PM
    re: LTE Watch: Size Matters
    <h3>FDD.

    As far as I know they're using the 2.6 GHz band (2,500-2,690 MHz) auctioned in May 2008. Here are the the allocations for FDD and TDD.</h3>
    <h3>LTE FDD frequency band allocations</h3>


    There is a large number of allocations or radio spectrum that has been reserved for FDD, frequency division duplex, LTE use.


    The FDD frequency bands are paired to allow simultaneous transmission on two frequencies. The bands also have a sufficient separation to enable the transmitted signals not to unduly impair the receiver performance. If the signals are too close then the receiver may be "blocked" and the sensitivity impaired. The separation must be sufficient to enable the roll-off of the antenna filtering to give sufficient attenuation of the transmitted signal within the receive band.

    <table border="0" class="dataTable" width="75%">
    <thead>
    <tr>
    <th>Band Number </th> <th>Band Description / Name </th> <th>Uplink
    (MHz) </th> <th>Downlink
    (MHz) </th>
    </tr>
    </thead>
    <tbody>
    <tr class="odd">
    <td>1</td>
    <td>IMT core</td>
    <td>1920 - 1980</td>
    <td>2110 - 2170</td>
    </tr>
    <tr>
    <td>2</td>
    <td>PCS 1900</td>
    <td>1850 - 1910</td>
    <td>1930 - 1990</td>
    </tr>
    <tr class="odd">
    <td>3</td>
    <td>GSM 1800</td>
    <td>1710 - 1785</td>
    <td>1805 -1880</td>
    </tr>
    <tr>
    <td>4</td>
    <td>AWS (US)</td>
    <td>1710 - 1755</td>
    <td>2110 - 2155</td>
    </tr>
    <tr class="odd">
    <td>5</td>
    <td>850 (US)</td>
    <td>824 - 849</td>
    <td>869 - 894</td>
    </tr>
    <tr>
    <td>6</td>
    <td>850 (Japan)</td>
    <td>830 - 840</td>
    <td>875 - 885</td>
    </tr>
    <tr class="odd">
    <td>7</td>
    <td>IMT Extension</td>
    <td>2500 - 2570</td>
    <td>2620 - 2690</td>
    </tr>
    <tr>
    <td>8</td>
    <td>GSM 900</td>
    <td>880 - 915</td>
    <td>925 - 960</td>
    </tr>
    <tr class="odd">
    <td>9</td>
    <td>1700 (Japan)</td>
    <td>1749.9 - 1784.9</td>
    <td>1844.9 - 1879.9</td>
    </tr>
    <tr>
    <td>10</td>
    <td>3G Americas</td>
    <td>1710 - 1770</td>
    <td>2110 - 2170</td>
    </tr>
    </tbody>
    </table>

    &nbsp;

    <h3>LTE TDD frequency band allocations</h3>

    With the interest in TDD LTE, there are several unpaired frequency allocations that are being prepared for LTR TDD use. The TDD LTE allocations are unpaired because the uplink and downlink share the same frequency, being time multiplexed.

    <table border="0" class="dataTable" width="75%">
    <thead>
    <tr class="odd">
    <th>Band Designation </th> <th>Band Name </th> <th>Allocation
    (MHz) </th>
    </tr>
    </thead><thead>
    <tr>
    <td>a</td>
    <td>TDD 1900</td>
    <td>1900 - 1920</td>
    </tr>
    <tr class="odd">
    <td>b</td>
    <td>TDD 2.0</td>
    <td>2010 - 2025</td>
    </tr>
    <tr>
    <td>c</td>
    <td>PCS centre gap</td>
    <td>1910 - 1930</td>
    </tr>
    <tr class="odd">
    <td>d</td>
    <td>IMT extension centre gap</td>
    <td>2570 - 2620</td>
    </tr>
    </thead>
    </table>
    sineira
    sineira
    12/5/2012 | 4:43:48 PM
    re: LTE Watch: Size Matters


    If you want to misunderstand me, feel free.

    sgan201
    sgan201
    12/5/2012 | 4:43:47 PM
    re: LTE Watch: Size Matters


    &nbsp;

    <h3>&lt;&lt; FDD.

    As far as I know they're using the 2.6 GHz band (2,500-2,690 MHz) auctioned in May 2008. Here are the the allocations for FDD and TDD.&gt;&gt;</h3>

    Sineira,


    &nbsp;


    Who is "they" in your statement?? If you are refering to Verizon in USA, they do not own spectrum in the 2.6 GHz range.&nbsp; They are deploying LTE in the 700MHz range.&nbsp; And, they have only 20MHz.&nbsp; So, 2 X 10 MHz is the only choice that they have.&nbsp; Hence, they (Verizon) cannot run LTE as fast as 20MHz channel folks.


    &nbsp;


    Dreamer


    &nbsp;

    t_newt
    t_newt
    12/5/2012 | 4:43:42 PM
    re: LTE Watch: Size Matters


    Siniera,


    At least according to Wikipedia, your table ends too soon. Here's band number 13:

    <table align="center" border="1" class="sortable collapsible wikitable" id="collapsibleTable0">
    <tbody>
    <tr align="center">
    <td>XIII (13)</td>
    <td> 777&nbsp;MHz to 787&nbsp;MHz</td>
    <td> 746&nbsp;MHz to 756&nbsp;MHz</td>
    <td>FDD</td>
    <td>1.4, 3, 5, 10</td>
    <td>Verizon's 700 MHz Block C</td>
    </tr>
    </tbody>
    </table>

    &nbsp;


    http://en.wikipedia.org/wiki/3...

    sineira
    sineira
    12/5/2012 | 4:43:42 PM
    re: LTE Watch: Size Matters


    Sigh!


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