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<h2>Quality Control (QC)</h2>

<p>During a connection, the usage of radio resources is monitored
by Quality Control. QC monitors that the BSS PFCs are given the negotiated
QoS level. The monitored items are BSS PFC throughput and TBF BLER. </p>


<p>Quality Control also monitors the radio channel quality
for each MS. The minimum radio channel quality level is set by the operator.</p>


<p>If the quality decreases below the negotiated QoS or operator
set parameters, QC triggers corrective actions, including radio channel reallocation,
Network Controlled Cell Reselection (<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=id016174#id016174" 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=id016174#id016174');return false" shape="rect" target="_blank">NCCR</a>),
BSS PFC renegotiation, or BSS PFC deletion.</p>


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<p>In BSC/TCSM documentation, see</p>


<ul>
<li><p>Enhanced Quality of Service</p>
</li>
<li><p>GPRS Handling in BSC</p>
</li>
</ul>


<p>In Nokia 2G SGSN Product Documentation, see</p>


<ul>
<li><p>Quality of Service (SY00026)</p>
</li>
</ul>
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