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<title>Deactivating Dynamic Frequency and Channel Allocation
(DFCA)</title>
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<div class="div">
<h1>Deactivating Dynamic Frequency and Channel Allocation
(DFCA)</h1>

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<h2>Purpose</h2>

<p>This procedure describes how to deactivate Dynamic Frequency and Channel
Allocation in a BTS.</p>


<p>DFCA can be deactivated in a BTS by setting the parameter <span class="parameter-sem">DFCA
Mode</span> to either <em>standby</em> or <em>off</em>. The difference
is the following:</p>


<ul>
<li><p>The <em>standby</em> mode does not delete the BIM tables
from the DFCA BTS so the BIM update process continues and return to DFCA can
happen quickly.</p>
</li>
<li><p>The <em>off</em> mode deletes the created BIM tables and
stops the BIM update process in the BTS. To return to DFCA, you first need
to set <span class="parameter-sem">DFCA Mode</span> to <em>standby</em>.</p>
</li>
</ul>
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<h2>Steps</h2>

<ol class="type-odd">
<li type="1"><a name="sep24417364431" shape="rect"></a>
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<h3>Lock the DFCA BTSs
(EQS).</h3>
</div>
</li>
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<div class="action-in-short">
<h3>Set the DFCA mode to <span class="state-sem">standby</span>
or <span class="state-sem">off</span> (EQM).</h3>
</div>
</li>
<li type="1"><a name="sep24417312022" shape="rect"></a>
<div class="action-in-short">
<h3>Unlock the DFCA BTSs (EQS).</h3>
</div>
</li>
</ol>
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<h2>Further information</h2>

<p>If you wish to remove DFCA totally, see <em>Activation
and Testing BSS11052: Dynamic Frequency and Channel Allocation</em> in BSC/TCSM
documentation for more details.</p>
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