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<h1>System impact of Enhanced Quality of Service (EQoS)</h1>

<p>The system impact of Enhanced Quality of Service (Nokia
solution) is specified in the sections below. For an overview, with a list
of the related topics, see <a href="NED?action=retrieve&amp;identifier=dn04111117&amp;edition=1&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=jun284136171#jun284136171" onclick="sync(this);return true" shape="rect">Overview
of Enhanced Quality of Service (EQoS)</a>.</p>


<p>Enhanced Quality of Service is an application software
product and requires a valid licence in the BSC.</p>


<p><a href="NED?action=retrieve&amp;identifier=dn04111589&amp;edition=1&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=ned_2#ned_2" onclick="sync(this);return true" shape="rect">Requirements</a></p>


<p><a href="NED?action=retrieve&amp;identifier=dn04111589&amp;edition=1&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=ned_6#ned_6" onclick="sync(this);return true" shape="rect">Impact on transmission</a></p>


<p><a href="NED?action=retrieve&amp;identifier=dn04111589&amp;edition=1&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=ned_7#ned_7" onclick="sync(this);return true" shape="rect"> Impact on BSS performance</a></p>


<p><a href="NED?action=retrieve&amp;identifier=dn04111589&amp;edition=1&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=ned_11#ned_11" onclick="sync(this);return true" shape="rect">User interface</a></p>


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<h2>Impact on Network Switching Subsystem (NSS)</h2>

<p>Support for Streaming QoS traffic class in 2G GPRS/SGSN
means supporting the following QoS attributes: Guaranteed bit rate, Maximum
bit rate, Transfer Delay and SDU Error Ratio.</p>


<p>Support for 3GPP Rel5 PFC flow control is also required.</p>
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<p><a href="NED?action=retrieve&amp;identifier=dn04111589&amp;edition=1&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=ned_16#ned_16" onclick="sync(this);return true" shape="rect">Impact on NetAct products</a></p>


<p><a href="NED?action=retrieve&amp;identifier=dn04111589&amp;edition=1&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=ned_17#ned_17" onclick="sync(this);return true" shape="rect">Impact on interfaces</a></p>


<p><a href="NED?action=retrieve&amp;identifier=dn04111589&amp;edition=1&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=ned_18#ned_18" onclick="sync(this);return true" shape="rect">Interworking with other features</a></p>


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<h2>Impact on mobile terminals</h2>

<p>The mobile station must support PFC procedures in order
to fully utilise traffic classes other than those defined in the Table <em>BSC
traffic class parameters for pre-defined traffic classes</em>. The mobile
station must also be able to manage streaming applications.</p>


<p>According to the ETSI R97/R98 GPRS and 3GPP GPRS, EGPRS
and WCDMA QoS standards, the mobile terminal may or may not be QoS aware,
meaning awareness of the bearer, that is, the PDP context QoS profile. With
these two alternatives, priority-based QoS can be provided to both QoS aware
and non-QoS aware terminals and clients. According to 3GPP R99 standards,
however, bit rate quarantees are only possible for QoS aware terminals and
clients.</p>
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<p><a href="NED?action=retrieve&amp;identifier=dn04111589&amp;edition=1&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=ned_19#ned_19" onclick="sync(this);return true" shape="rect">Impact on capacity</a></p>


<p><a href="NED?action=retrieve&amp;identifier=dn04111589&amp;edition=1&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=ned_20#ned_20" onclick="sync(this);return true" shape="rect">Impact on planning</a></p>
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