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<div class="div">
<h1>Testing Gb over IP</h1>

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<h2>Purpose</h2>

<p>You can test the Gb over IP by first activating EGPRS on a cell level. </p>
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<h2>Before you start</h2>

<p>Before you can activate GPRS on a cell level you need to create the
Routing Area (RA). When creating a Routing Area you are indicating to the
BSC which PCUs serve which Routing Area. It is recommended to make the Routing
Area as complete as possible already in the creation phase. The Routing Area
has to be as a whole under one SGSN; in the Nokia implementation this means
one Routing Area is under one Packet Processing Unit (PAPU). Also keep in
mind your network configuration plan for the Gb interface, and refer to your
SGSN documentation for tasks to be done at the SGSN side.</p>


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<dl class="note-notification">
<dt class="note-caption">Note</dt>
<dd><p>The PCU and PCU-S plug-in units can handle a maximum of 128 GPRS channels
and EGPRS master channels.</p>



<p>The PCU-T, PCU-B, PCU2-U, and PCU2-D plug-in units can handle a maximum
of 256 GPRS channels and EGPRS master channels.</p>



<p>Abis connectivity is checked for PCUs in the same slot position in all
BCSUs. If there are older PCU variants in the same slot position as newer
ones, the Abis connectivity of the newer ones is reduced to that of the oldest
PCU.</p>
</dd>
</dl>


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<dt class="note-caption">Note</dt>
<dd>While you are activating GPRS, the circuit switched traffic is functioning
as usual at the same time.</dd>
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<p>Refer to the <em>Routing Area</em> section of (E)GPRS in BSC for
more information on the optimal Routing Area size.</p>
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<div class="sequence">
<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" />
Expand/collapse all</span></p>
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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> Check that the RA object has been created (EBP).</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> Check to which SGSN the RA object
is connected.</span></p>
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<p><span class="menupath-sem">Further information:</span></p>


<p>Refer to your SGSN documentation for the prerequisites for Gb interface
planning.</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> Create the Routing Area (EBF).</span></p>
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<p class="title"><span class="block-title" onclick="expandBlock('block4'); return false"><layer visibility="hide"><img alt="Expand/collapse" border="0" class="ExpColl" name="block4Title" 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> Check that the creation was successful
(EBP).</span></p>
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</div>
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</li>
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<div class="action-in-detail">
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<p class="title"><span class="block-title" onclick="expandBlock('block5'); return false"><layer visibility="hide"><img alt="Expand/collapse" border="0" class="ExpColl" name="block5Title" 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> Check the radio network parameters
(EEO, EQO, ERO, EUO, EAO).</span></p>
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<p>Use the <span class="parameter-sem">EEO, EQO, ERO, EUO</span> and <span class="parameter-sem">EAO</span>
commands. If you need to change the values, change them before enabling GPRS
in the cell.</p>


<p><span class="menupath-sem">Further information:</span></p>


<p>Refer to <em>Optimising GPRS Radio Network Performance</em>.</p>
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<h3>Enable GPRS on a cell level (EQV).</h3>
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