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<h1>Activating Dynamic Frequency and Channel Allocation (DFCA)</h1>

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<h2>Purpose</h2>

<p>These instructions are for activating Dynamic Frequency and Channel
Allocation (DFCA) in the BSC.</p>
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<h2>Before you start</h2>

<p>Make sure you have configured DFCA as described in <a href="NED?action=retrieve&amp;identifier=dn04184161&amp;edition=1&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=jan1651155472#jan1651155472" onclick="sync(this);return true" shape="rect">Configuring
Dynamic Frequency and Channel Allocation (DFCA)</a>.</p>
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<h2>Steps</h2>

<layer visibility="hide"><p class="title"><span class="ExpCollAll" onclick="ExpCollAll(false); return false"><img alt="Expand/collapse all" border="0" class="ExpColl" name="blockTitle" src="NED?action=retrieve&amp;identifier=dn01157982&amp;edition=1&amp;language=none&amp;coverage=global&amp;encoding=gif&amp;component=data&amp;item=data" />
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<h3>Make sure all BCFs are synchronised
to LMU (EFL).</h3>
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<h3>Set <span class="parameter-sem">DFCA Mode</span>
to <em>standby</em> for each DFCA BTS (EQM).</h3>
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<p class="title"><span class="block-title" onclick="expandBlock('block1'); return false"><layer visibility="hide"><img alt="Expand/collapse" border="0" class="ExpColl" name="block1Title" src="NED?action=retrieve&amp;identifier=dn01157982&amp;edition=1&amp;language=none&amp;coverage=global&amp;encoding=gif&amp;component=data&amp;item=data" /></layer> Wait for at least one BIM update
period.</span></p>
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<p>During this time, traffic is needed. The mobile stations having ongoing
calls send measurement reports to the BSC, which produces background interference
matrix (BIM) tables for DFCA.</p>


<p>The <span class="state-sem">standby</span> mode must be long enough for a sufficient
amount of data to be collected to the BIM tables.</p>


<p>You can check that the BIM tables exist and contain data with the command <span class="command-sem">EQI</span>.</p>
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<p class="title"><span class="block-title" onclick="expandBlock('block2'); return false"><layer visibility="hide"><img alt="Expand/collapse" border="0" class="ExpColl" name="block2Title" src="NED?action=retrieve&amp;identifier=dn01157982&amp;edition=1&amp;language=none&amp;coverage=global&amp;encoding=gif&amp;component=data&amp;item=data" /></layer> Set <span class="parameter-sem">DFCA Mode</span>
to <em>DFCA hopping</em> for each DFCA BTS (EQS, EQM, EQS).</span></p>
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<p>This requires locking the BTS.</p>
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<p class="title"><span class="block-title" onclick="expandBlock('block3'); return false"><layer visibility="hide"><img alt="Expand/collapse" border="0" class="ExpColl" name="block3Title" src="NED?action=retrieve&amp;identifier=dn01157982&amp;edition=1&amp;language=none&amp;coverage=global&amp;encoding=gif&amp;component=data&amp;item=data" /></layer> Make test calls.</span></p>
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<p>For detailed instructions, see <em>Activating and Testing BSS11052:
Dynamic Frequency and Channel Allocation </em>in BSC/TCSM documentation.</p>
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<h2>Further information</h2>

<p>For an overview, see <a href="NED?action=retrieve&amp;identifier=dn04111347&amp;edition=1&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=sep244160569#sep244160569" onclick="sync(this);return true" shape="rect">Overview
of implementing Dynamic Frequency and Channel Allocation (DFCA)</a>.</p>
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