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<h1>Creating a multiband cell (segment) </h1>

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<h2>Purpose</h2>

<p>Create a multiband segment by creating a new GSM 800 <a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id03816#id03816" onclick="openSmallPopup(event,'NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id03816#id03816');return false" shape="rect" target="_blank">BTS</a> to an existing GSM 1900 segment.</p>
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<div class="preconditions">
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<h2>Before you start</h2>

<p>The existing segment has one BTS using the <a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id012007#id012007" onclick="openSmallPopup(event,'NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id012007#id012007');return false" shape="rect" target="_blank">GSM
1900</a> frequency band that has all <a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id04885#id04885" onclick="openSmallPopup(event,'NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id04885#id04885');return false" shape="rect" target="_blank">TRXs</a> in the <a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id02865#id02865" onclick="openSmallPopup(event,'NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id02865#id02865');return false" shape="rect" target="_blank">WO</a> state. During the <a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id04439#id04439" onclick="openSmallPopup(event,'NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id04439#id04439');return false" shape="rect" target="_blank">BSC</a>
software installation, the system has created a <a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id013538#id013538" onclick="openSmallPopup(event,'NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id013538#id013538');return false" shape="rect" target="_blank">SEG</a>
for each existing BTS. The number of the SEG is the same as the number of
the related BTS, for example BTS-12 =&gt; SEG-12.</p>


<p>You can use the create BTS and TRX commands of the BSC <a href="NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id0434#id0434" onclick="openSmallPopup(event,'NED?action=retrieve&amp;identifier=general_glossary&amp;edition=13&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=id0434#id0434');return false" shape="rect" target="_blank">MML</a> or NetAct to create the new BTS.</p>
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<h2>Steps</h2>

<ol class="type-odd">
<li type="1"><a name="nov28211372213" shape="rect"></a>
<div class="action-in-short">
<h3>Create a BTS (EQC).</h3>
</div>
</li>
<li type="1"><a name="nov26218502440" shape="rect"></a>
<div class="action-in-short">
<h3>Delete the old BCCH
channel (ERM).</h3>
</div>
</li>
<li type="1"><a name="nov26218503741" shape="rect"></a>
<div class="action-in-short">
<h3>Create a TRX and the
BCCH channel (ERC).</h3>
</div>
</li>
<li type="1"><a name="nov26218503842" shape="rect"></a>
<div class="action-in-short">
<h3>Modify the parameter <span class="parameter-sem">Ms Tx Pwr Max GSM</span> for the new BTS using the GSM 800
band (EQM).</h3>
</div>
</li>
<li type="1"><a name="nov26218503943" shape="rect"></a>
<div class="action-in-short">
<h3>Define the maximum
transmission power for MS accessing the cell (EQG).</h3>
</div>
</li>
<li type="1"><a name="nov26218503944" shape="rect"></a>
<div class="action-in-short">
<h3>Modify the power control
parameters of the segment (EUG).</h3>
</div>
</li>
<li type="1"><a name="jan265161010" shape="rect"></a>
<div class="action-in-short">
<h3>Modify the Early Sending Indication
for the Common BCCH segment (EQM).</h3>
</div>
</li>
<li type="1"><a name="nov26218504045" shape="rect"></a>
<div class="action-in-short">
<h3>Define the signal
level difference by using the parameter <span class="parameter-sem">Non BCCH Layer
Offset</span> (EQM).</h3>
</div>
</li>
<li type="1"><a name="nov26218504046" shape="rect"></a>
<div class="action-in-short">
<h3>Define the load limit
for a BTS (EQM).</h3>
</div>
</li>
<li type="1"><a name="nov26218504147" shape="rect"></a>
<div class="action-in-short">
<h3>Define the threshold
value for the estimated downlink signal level on the non-BCCH frequency layer
(EHS).</h3>
</div>
</li>
<li type="1"><a name="nov26218504148" shape="rect"></a>
<div class="action-in-short">
<h3>Define the threshold
for handing an MS over from the non-BCCH frequency layer to the BCCH frequency
layer (EHS).</h3>
</div>
</li>
<li type="1"><a name="nov26218504249" shape="rect"></a>
<div class="action-in-short">
<h3>Modify the handover
control parameters of the segment (EHG).</h3>
</div>
</li>
<li type="1"><a name="nov26218504250" shape="rect"></a>
<div class="action-in-short">
<h3>Create adjacent cells
(EAC).</h3>
</div>
</li>
<li type="1"><a name="nov26218504351" shape="rect"></a>
<div class="action-in-short">
<h3>Delete an adjacent
cell of the segment (EAD).</h3>
</div>
</li>
<li type="1"><a name="nov26218504352" shape="rect"></a>
<div class="action-in-short">
<h3>Modify the BA list
(EBM) &lt;option&gt;.</h3>
</div>
</li>
<li type="1"><a name="nov26218504353" shape="rect"></a>
<div class="action-in-short">
<h3>Create a BA list and
attach it to a segment (EBC, EQB) &lt;option&gt;</h3>
</div>
</li>
<li type="1"><a name="nov26218504454" shape="rect"></a>
<div class="action-in-short">
<h3>Control the BTS states
(EQS, ERS, EFS).</h3>
</div>
</li>
<li type="1"><a name="nov26218504455" shape="rect"></a>
<div class="action-in-short">
<h3>Check the postcondition
(EEI).</h3>
</div>
</li>
</ol>
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<div class="topic">
<h2>Further information</h2>

<p>For an overview, see <a href="NED?action=retrieve&amp;identifier=dn02222043&amp;edition=5&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=ned_top#ned_top" onclick="sync(this);return true" shape="rect">Overview of implementing Common BCCH</a></p>


<p>For more information on activation, see <em>Activating
and Testing BSS10016 and BSS10118: Common BCCH Control for GSM</em> in BSC/TCSM
documentation.</p>
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