<?xml version="1.0" encoding="utf-8" standalone="yes"?><html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>High Capacity BSC</title>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type" />
<meta content="text/css" http-equiv="Content-Style-Type" />
<script src="NED?action=retrieve&amp;identifier=dn00188761&amp;edition=1&amp;language=none&amp;coverage=global&amp;encoding=javascript&amp;component=data&amp;item=data" type="text/javascript" xml:space="preserve">
</script>
<?conversion name="Pub2XHTML" version="2.0" source="urn:mars:dn0430595:1:en:global:publishing_online_1_0:data:data:*:*:*" date="2005-02-21T15:07:05Z"?>
<link href="NED?action=retrieve&amp;identifier=dn01158124&amp;edition=1&amp;language=en&amp;coverage=global&amp;encoding=css&amp;component=data&amp;item=data" rel="stylesheet" title="Nokia Networks default online style" type="text/css" />
<meta content="draft" name="status" />
<?conversion name="SplitHTML" version="1.9" source="urn:mars:dn0430595:1:en:global:publishing_online_1_0:data:data:37:*:*" date="2005-02-21T15:07:05Z"?>
</head>
<body lang="en" xml:lang="en">
<p><a name="ned_top" shape="rect"></a>
<a name="ned_1" shape="rect"></a></p>

<a name="jan175134712" shape="rect"></a>
<a name="p2xhtm-repid-1" shape="rect"></a>
<table width="100%">
<tr>
<td align="center" colspan="1" rowspan="1" width="20%"><?NED5 annotation?>
<br clear="none" /><?NED5 printview?>
</td>
<td align="center" colspan="1" rowspan="1" width="20%"></td>
<td align="center" colspan="1" rowspan="1" width="20%"></td>
<td align="center" colspan="1" rowspan="1" width="20%"></td>
<td align="center" colspan="1" rowspan="1" width="20%"><a href="NED?action=retrieve&amp;identifier=dn0430595_about&amp;edition=1&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=ned_top#ned_top" onclick="openSmallPopup(event,'NED?action=retrieve&amp;identifier=dn0430595_about&amp;edition=1&amp;language=en&amp;coverage=global&amp;encoding=xhtml_1_0&amp;component=data&amp;item=data&amp;pointer=ned_top#ned_top');return false" shape="rect" target="_blank"><img alt="Document information" border="0" class="Metainfo" src="NED?action=retrieve&amp;identifier=dn01158003&amp;edition=1&amp;language=en&amp;coverage=global&amp;encoding=gif&amp;component=data&amp;item=data" /></a></td>
</tr>
</table>


<div class="div">
<h1>High Capacity BSC</h1>

<p>The ‘High Capacity BSC’ is a feature in the DX200 Base
Station Controller, which enhances the growth of network capacity. The feature
enables an even more powerful and efficient BSC usage and also a full use
of the existing BSCs.</p>


<p>The ‘High Capacity BSC’ feature enables to create the maximum
of 512 TRXs and 248 BTS/BCFs in upgrading the BSCE or BSC2E/A, that is, 31
BCF per BCSU and 248 BTS per BSC. The prerequisite is that the BSC fulfills
the hardware requirements, that is, it is configured as an i-model (the BSCi
or BSC2i). The existing BSCs can also be upgraded to fulfill the hardware
requirements of this feature.</p>


<p>The existing BSCs should have the S6 "Large Capacity BSC"
optional feature implemented in order to be able to use this feature although
this upgrade to High Capacity does not require a full configuration of the
BSC, that is, 8 working BCSUs.</p>


<p>The traffic handling capacity of the High Capacity BSC
increases to 3040 Erlangs and 91000 BHCAs (Busy Hour Call Attempts) with the
reference call mix described in BSC2i Product Description. For more information,
see the BSC2i Product Description.</p>


<a name="apr1641514301" shape="rect"></a>
<div>
<p>Table: Processing capacity</p>


<table border="1">
<thead>
<tr align="left" char="" charoff="50" valign="bottom">
<th colspan="2" rowspan="1" valign="top"><p>Processing capacity:</p>


<p>With the reference model below, the maximum processing
capacity of a DX 200 BSC2i is 3040 Erl/91000 BHCA, giving full support to
512 FR TRXs.</p>
</th>
</tr>
</thead>
<tbody>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="2" rowspan="1"><p><span class="menupath-sem">Reference model of call
traffic (call mix and parameters):</span></p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p><span class="menupath-sem">Mean holding</span></p>
</td>
<td colspan="1" rowspan="1"><p><span class="menupath-sem">120s</span></p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p><span class="menupath-sem">Proportion of MS originated</span></p>
</td>
<td colspan="1" rowspan="1"><p><span class="menupath-sem">70%</span></p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p><span class="menupath-sem">Proportion of MS terminated</span></p>
</td>
<td colspan="1" rowspan="1"><p><span class="menupath-sem">30%</span></p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p><span class="menupath-sem">Proportion of handovers</span></p>
</td>
<td colspan="1" rowspan="1"><p><span class="menupath-sem">1.5 HOs per call</span></p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p><span class="menupath-sem">Proportions of location
updates</span></p>
</td>
<td colspan="1" rowspan="1"><p><span class="menupath-sem">2 LUs per call</span></p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p><span class="menupath-sem">Proportion of IMSI</span></p>
</td>
<td colspan="1" rowspan="1"><p><span class="menupath-sem">0.1 detaches per</span></p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p><span class="menupath-sem">For terminating call
attempts, the no-answer call attempts to paging</span></p>
</td>
<td colspan="1" rowspan="1"><p><span class="menupath-sem">63%</span></p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p><span class="menupath-sem">SMS call rate</span></p>
</td>
<td colspan="1" rowspan="1"><p><span class="menupath-sem">1 req./subs./1</span></p>
</td>
</tr>
</tbody>
</table>
</div>


<a name="feb274122502" shape="rect"></a>
<div class="topic">
<h2>BSCE
upgrade to BSCi</h2>

<p>The following figure illustrates the upgraded BSCE, the
BSCi hardware configuration that is required when more than 256 TRXs are taken
into use in a BSC. The configuration can be upgraded into already installed
BSCEs.</p>


<p>By making the required HW changes and with the High Capacity
BSC optional feature, the operator can increase the maximum amount of supported
TRXs, BTSs, and BCFs. The increase will not require the maximum amount of
BCSUs, that is,  eight to be working. It can be done with one to eight BCSUs
if other requirements are fulfilled, all BCSUs must have the plug-in-units
of same HW type.</p>


<p>It is possible to add two extra ET5C cartridges to BSCE
when upgrading to BSCi, High Capacity BSC. The ET5C cartridge contains eight
ET2Es, all of which provide two PCM interfaces. To implement the extra ET5Cs
also the new mass memory cartridge SD3C-S has to be installed. This optional
HW enables the BSCi to provide the maximum of 88 external PCM lines.</p>


<a name="apr1541752273" shape="rect"></a>
<div>
<img alt="urn:mars:dn0468351:1:en:global:tiff:data:data" border="0" src="NED?action=retrieve&amp;identifier=dn0468351&amp;edition=1&amp;language=en&amp;coverage=global&amp;encoding=gif&amp;component=data&amp;item=data" /><p class="figure-caption">Figure: BSCi (upgraded BSCE) with a maximum capacity of 512 TRXs and 4096
TCHs</p>
</div>
</div>


<a name="feb2741226493" shape="rect"></a>
<div class="topic">
<h2>Mandatory
hardware:</h2>

<ul>
<li><p>A new CPU type: the CP6LX, which will
include a minimum amount of 64MBytes RAM. The CP6LX is based on a Pentium
II processor.</p>
</li>
<li><p>A GSWB with two SW64B plug-in units
if they have not already been installed. </p>
</li>
<li><p>MBIF-UA plug-in-units.</p>
</li>
<li><p>AS7-U(s) in every BCSU are replaced
with three AS7-Vs, that is, three AS7-Vs and one AFS-T plug-in-unit in every
BCSU.</p>
</li>
<li><p>Q1 and LapD terminal in the OMU changed
to an AS7-V plug-in unit.</p>
</li>
<li><p>SERO-T taken into use for the LPT and
VDU (replaces the SCSIF).</p>
</li>
<li><p>Connector panel for additional VDU,
LPT interfaces.</p>
</li>
<li><p>LAN connection is provided by CP6LX,
no COCEN card needed.</p>
</li>
<li><p>Minimum NetAct link speed 64 kbit/s.</p>
</li>
</ul>
</div>


<a name="feb2741232574" shape="rect"></a>
<div class="topic">
<h2>Optional
hardware:</h2>

<ul>
<li><p>Two ET5C cartridges if the maximum
number of external PCMs is increased from 56 to 88.</p>
</li>
<li><p>Mass memory cartridge SD3C-S.</p>
</li>
<li><p>One additional SW64B plug-in unit in
both SW1C cartridges (=192 PCMs). A new front panel connector SWBUS3 is also
needed.</p>
</li>
</ul>
</div>


<a name="feb2741234125" shape="rect"></a>
<div class="topic">
<h2>BSC2E/A
upgrade to BSC2i</h2>

<p>The following figure illustrates the BSC2E/A hardware configuration
requirements. This generation of equipment allows the number of PCMs to be
increased to a maximum of 112. Currently, the maximum number is 80 with the
256 TRXs Large Capacity feature.</p>


<p>By making the required HW changes and with High Capacity
BSC optional feature, the operator can increase the maximum amount of supported
TRXs, BTSs, and BCFs. The increase will not require the maximum amount of
BCSUs, that is, eight, to be working. It can be done with one to eight BCSUs
if other requirements are fulfilled, that is, all BCSUs must have the same
HW type.</p>


<a name="apr1541753264" shape="rect"></a>
<div>
<img alt="urn:mars:dn0468363:1:en:global:tiff:data:data" border="0" src="NED?action=retrieve&amp;identifier=dn0468363&amp;edition=1&amp;language=en&amp;coverage=global&amp;encoding=gif&amp;component=data&amp;item=data" /><p class="figure-caption">Figure: BSC2i (BSC2E upgrade) with a maximum capacity of 512 TRXs and 4096
TCHs (ETSI)</p>
</div>
</div>


<a name="apr1641358582" shape="rect"></a>
<div class="topic">
<h2>Mandatory
hardware:</h2>

<ul>
<li><p>A new CPU type: the CP6LX, which will
include a minimum amount of 64MBytes RAM. The CP6LX is based on a Pentium
II processor.</p>
</li>
<li><p>A GSWB with two SW64B plug-in-units
if they have not already been installed.</p>
</li>
<li><p>MBIF-UA plug-in-units installed in
the MCMU, OMU, and BCSUs.</p>
</li>
<li><p>AS7-U(s) in every BCSU are replaced
with three AS7-Vs, that is, three AS7-V plug-in-units in every BCSU.</p>
</li>
<li><p>Q1 and LapD terminal in the OMU changed
to an AS7-V plug-in unit.</p>
</li>
<li><p>SERO-T taken into use for the LPT and
VDU (replaces the SCSIF).</p>
</li>
<li><p>Connector panel for additional VDU
and LPT interfaces.</p>
</li>
<li><p>LAN connection is provided by CP6LX,
no COCEN card needed.</p>
</li>
<li><p>Minimum NetAct link speed 64 kbit/s.</p>
</li>
</ul>
</div>


<a name="feb2741235327" shape="rect"></a>
<div class="topic">
<h2>Optional
hardware:</h2>

<ul>
<li><p>Two ET5C cartridges if the maximum
number of external PCMs is increased from 80 to 112.</p>
</li>
<li><p>One additional SW64B plug-in unit in
both SW1C cartridges (=192 PCMs). (Needed if optional ET5C cartridges are
installed). A new front panel connector SWBUS3 is also needed.</p>
</li>
</ul>
</div>


<a name="feb2741236418" shape="rect"></a>
<div class="topic">
<h2>BSC2i
new deliveries</h2>

<p>The following figure illustrates the BSC2i hardware configuration
in new deliveries from S8 onwards.</p>


<a name="apr1541755425" shape="rect"></a>
<div>
<img alt="urn:mars:dn0469059:1:en:global:tiff:data:data" border="0" src="NED?action=retrieve&amp;identifier=dn0469059&amp;edition=1&amp;language=en&amp;coverage=global&amp;encoding=gif&amp;component=data&amp;item=data" /><p class="figure-caption">Figure: BSC2i new deliveries with maximum capacity of 512 TRX and 4096 TCHs</p>
</div>


<p>The new BSC2i deliveries contain basically the same hardware
as the BSC2E/A upgrade (BSC2i) plus the optional hardware (ET5Cs and GSWB
extension) and a new mass memory cartridge as the standard hardware.</p>
</div>


<a name="feb2741238139" shape="rect"></a>
<div class="topic">
<h2>High
Capacity BSC3i </h2>

<p>High Capacity BSC3i is the latest BSC variant in the market
from Nokia. The high capacity BSC3i with 660 TRXs was introduced in 2002.
Best parts of the latest DX200 multi-processing platform have been used to
enable packing of more traffic handling capacity to only one cabinet design.</p>


<p>The BSC3i capacity can be extended in steps of 110 TRXs
according to the number of BCSUs until 660 TRXs in full one rack configuration.
With the reference model below, the maximum processing capacity of BSC3i is
3920 Erl/117000 BHCA, giving full supoort to 660 FR TRXs.</p>


<a name="apr1641342241" shape="rect"></a>
<div>
<p>Table: Processing capacity</p>


<table border="1">
<thead>
<tr align="left" char="" charoff="50" valign="bottom">
<th colspan="2" rowspan="1" valign="top"><p>Processing capacity:</p>


<p>With the reference model below, the maximum processing
capacity of a DX 200 BSC2i is 3040 Erl/91000 BHCA, giving full support to
512 FR TRXs.</p>
</th>
</tr>
</thead>
<tbody>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="2" rowspan="1"><p><span class="menupath-sem">Reference model of call
traffic (call mix and parameters):</span></p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p><span class="menupath-sem">Mean holding</span></p>
</td>
<td colspan="1" rowspan="1"><p><span class="menupath-sem">120s</span></p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p><span class="menupath-sem">Proportion of MS originated</span></p>
</td>
<td colspan="1" rowspan="1"><p><span class="menupath-sem">70%</span></p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p><span class="menupath-sem">Proportion of MS terminated</span></p>
</td>
<td colspan="1" rowspan="1"><p><span class="menupath-sem">30%</span></p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p><span class="menupath-sem">Proportion of handovers</span></p>
</td>
<td colspan="1" rowspan="1"><p><span class="menupath-sem">1.5 HOs per call</span></p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p><span class="menupath-sem">Proportions of location
updates</span></p>
</td>
<td colspan="1" rowspan="1"><p><span class="menupath-sem">2 LUs per call</span></p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p><span class="menupath-sem">Proportion of IMSI</span></p>
</td>
<td colspan="1" rowspan="1"><p><span class="menupath-sem">0.1 detaches per</span></p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p><span class="menupath-sem">For terminating call
attempts, the no-answer call attempts to paging</span></p>
</td>
<td colspan="1" rowspan="1"><p><span class="menupath-sem">63%</span></p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p><span class="menupath-sem">SMS call rate</span></p>
</td>
<td colspan="1" rowspan="1"><p><span class="menupath-sem">1 req./subs./1</span></p>
</td>
</tr>
</tbody>
</table>
</div>


<a name="apr1541757436" shape="rect"></a>
<div>
<img alt="urn:mars:dn0469047:1:en:global:tiff:data:data" border="0" src="NED?action=retrieve&amp;identifier=dn0469047&amp;edition=1&amp;language=en&amp;coverage=global&amp;encoding=gif&amp;component=data&amp;item=data" /><p class="figure-caption">Figure: BSC3i with the maximum capacity of 660 TRXs</p>
</div>


<p>A number of different configurations are likely to exist
in operators' networks currently. To assist in establishing the BSC configurations
that can be supported, the table below shows the BSC configurations vs. capability.</p>


<a name="feb27412413610" shape="rect"></a>
<div>
<table border="1">
<thead>
<tr align="left" char="" charoff="50" valign="bottom">
<th colspan="1" rowspan="1" valign="top"><p>BSC Configurations (S10.5)</p>
</th>
<th colspan="1" rowspan="1" valign="top"><p>A</p>


<p>BSC with no extra TRXs - BSCE</p>
</th>
<th colspan="1" rowspan="1" valign="top"><p>B</p>


<p>Large Capacity BSC – BSC2E</p>
</th>
<th colspan="1" rowspan="1" valign="top"><p>C</p>


<p>High Capacity BSC – BSCi</p>
</th>
<th colspan="1" rowspan="1" valign="top"><p>D</p>


<p>High Capacity BSC – BSC2i</p>
</th>
<th colspan="1" rowspan="1" valign="top"><p>E</p>


<p>High Capacity BSC – BSC3i</p>
</th>
</tr>
</thead>
<tbody>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p>Supported in BSC Types</p>
</td>
<td colspan="1" rowspan="1"><p>BSCE</p>


<p>BSC2E</p>


<p>BSC2A</p>
</td>
<td colspan="1" rowspan="1"><p>BSCE</p>


<p>BSC2E</p>


<p>BSC2A</p>
</td>
<td colspan="1" rowspan="1"><p>BSCE</p>
</td>
<td colspan="1" rowspan="1"><p>BSC2E</p>


<p>BSC2A</p>
</td>
<td colspan="1" rowspan="1"><p>BSC3i</p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p>Maximum Radio network configuration</p>
</td>
<td colspan="1" rowspan="1"><p>128 BCF</p>


<p>128 BTS</p>


<p>128 TRX</p>
</td>
<td colspan="1" rowspan="1"><p>200 BCF</p>


<p>248 BTS</p>


<p>256 TRX</p>
</td>
<td colspan="1" rowspan="1"><p>248 BCF</p>


<p>248 BTS</p>


<p>512 TRX</p>
</td>
<td colspan="1" rowspan="1"><p>248 BCF</p>


<p>248 BTS</p>


<p>512 TRX</p>
</td>
<td colspan="1" rowspan="1"><p>248 BCF</p>


<p>248 BTS</p>


<p>660 TRX</p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p>Maximum number of PrimeSites</p>
</td>
<td colspan="1" rowspan="1"><p>128</p>
</td>
<td colspan="1" rowspan="1"><p>256</p>
</td>
<td colspan="1" rowspan="1"><p>256</p>
</td>
<td colspan="1" rowspan="1"><p>256</p>
</td>
<td colspan="1" rowspan="1"><p>256</p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p>Allowed CPU Type in OMU /Minimum size of memory in megabytes</p>
</td>
<td colspan="1" rowspan="1"><p>CP4HX/128</p>


<p>CP4HL/128</p>


<p>CP6LX/128</p>


<p>CP6MX/128</p>
</td>
<td colspan="1" rowspan="1"><p>CP4HX/128</p>


<p>CP4HL/128</p>


<p>CP6LX/128</p>


<p>CP6MX/128</p>
</td>
<td colspan="1" rowspan="1"><p>CP6LX/128</p>


<p>CP6MX/128</p>
</td>
<td colspan="1" rowspan="1"><p>CP6LX/128</p>


<p>CP6MX/128</p>
</td>
<td colspan="1" rowspan="1"><p>CP710/256</p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p>Allowed CPU Type in MCMU /Minimum size of memory in megabytes</p>
</td>
<td colspan="1" rowspan="1"><p>CP4HX/128</p>


<p>CP4HL/128</p>


<p>CP6LX/128</p>


<p>CP6MX/128</p>
</td>
<td colspan="1" rowspan="1"><p>CP4HX/128</p>


<p>CP4HL/128</p>


<p>CP6LX/128</p>


<p>CP6MX/128</p>
</td>
<td colspan="1" rowspan="1"><p>CP6LX/128</p>


<p>CP6MX/128</p>
</td>
<td colspan="1" rowspan="1"><p>CP6LX/128</p>


<p>CP6MX/128</p>
</td>
<td colspan="1" rowspan="1"><p>CP710/256</p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p>Allowed CPU Type in BCSU /Minimum size of memory in megabytes</p>
</td>
<td colspan="1" rowspan="1"><p>CP4HX/64</p>


<p>CP4HL/64</p>


<p>CP6LX/64</p>


<p>CP6MX/128</p>
</td>
<td colspan="1" rowspan="1"><p>CP4HX/64</p>


<p>CP4HL/64</p>


<p>CP6LX/64</p>


<p>CP6MX/128</p>
</td>
<td colspan="1" rowspan="1"><p>CP6LX/64</p>


<p>CP6MX/128</p>
</td>
<td colspan="1" rowspan="1"><p>CP6LX/64</p>


<p>CP6MX/128</p>
</td>
<td colspan="1" rowspan="1"><p>CP710/256</p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p>Allowed Group Switch type /Maximum number of PCMs</p>
</td>
<td colspan="1" rowspan="1"><p>GSWB/128</p>
</td>
<td colspan="1" rowspan="1"><p>GSWB/128</p>
</td>
<td colspan="1" rowspan="1"><p>GSWB/128 /GSWB/192</p>
</td>
<td colspan="1" rowspan="1"><p>GSWB/128 /GSWB/192/ GSWB/256</p>
</td>
<td colspan="1" rowspan="1"><p>GSWB/256</p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p>Number of AS7-U cards in BCSUs</p>
</td>
<td colspan="1" rowspan="1"><p>2-3</p>
</td>
<td colspan="1" rowspan="1"><p>3</p>
</td>
<td colspan="1" rowspan="1"><p>-</p>
</td>
<td colspan="1" rowspan="1"><p>0-1</p>
</td>
<td colspan="1" rowspan="1"><p>-</p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p>Number of AS7-V cards in BCSUs</p>
</td>
<td colspan="1" rowspan="1"><p>-</p>
</td>
<td colspan="1" rowspan="1"><p>-</p>
</td>
<td colspan="1" rowspan="1"><p>3</p>
</td>
<td colspan="1" rowspan="1"><p>2-3</p>
</td>
<td colspan="1" rowspan="1"><p>-</p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p>Number of AS7-B cards in BCSUs</p>
</td>
<td colspan="1" rowspan="1"><p>-</p>
</td>
<td colspan="1" rowspan="1"><p>-</p>
</td>
<td colspan="1" rowspan="1"><p>-</p>
</td>
<td colspan="1" rowspan="1"><p>-</p>
</td>
<td colspan="1" rowspan="1"><p>3</p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p>Maximum Number of external PCMs</p>
</td>
<td colspan="1" rowspan="1"><p>56</p>
</td>
<td colspan="1" rowspan="1"><p>56 /BSCE</p>


<p>80/112 /BSC2</p>
</td>
<td colspan="1" rowspan="1"><p>56/88</p>
</td>
<td colspan="1" rowspan="1"><p>80/112/144</p>
</td>
<td colspan="1" rowspan="1"><p>124</p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p>Type of LapD and Q1 terminal in OMU </p>
</td>
<td colspan="1" rowspan="1"><p>AS7-U</p>
</td>
<td colspan="1" rowspan="1"><p>AS7-U</p>
</td>
<td colspan="1" rowspan="1"><p>AS7-V</p>
</td>
<td colspan="1" rowspan="1"><p>AS7-V</p>
</td>
<td colspan="1" rowspan="1"><p>AS7-B</p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p>Minimum number of WO-EX BCSUs</p>
</td>
<td colspan="1" rowspan="1"><p>1-8</p>
</td>
<td colspan="1" rowspan="1"><p>8</p>
</td>
<td colspan="1" rowspan="1"><p>1-8</p>
</td>
<td colspan="1" rowspan="1"><p>1-8</p>
</td>
<td colspan="1" rowspan="1"><p>1-6</p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p>Number of BCFSIG LapD links per BCSU</p>
</td>
<td colspan="1" rowspan="1"><p>16</p>
</td>
<td colspan="1" rowspan="1"><p>32</p>
</td>
<td colspan="1" rowspan="1"><p>32</p>
</td>
<td colspan="1" rowspan="1"><p>32</p>
</td>
<td colspan="1" rowspan="1"><p>43</p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p>Number of TRXSIG LapD links per BCSU</p>
</td>
<td colspan="1" rowspan="1"><p>16</p>
</td>
<td colspan="1" rowspan="1"><p>32</p>
</td>
<td colspan="1" rowspan="1"><p>64</p>
</td>
<td colspan="1" rowspan="1"><p>64</p>
</td>
<td colspan="1" rowspan="1"><p>110</p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p>Maximum number of LapD links per BCSU</p>


<p>(BCFSIG + TRXSIG + ISDN+ET-LAPD)</p>
</td>
<td colspan="1" rowspan="1"><p>64</p>
</td>
<td colspan="1" rowspan="1"><p>64</p>


<p></p>
</td>
<td colspan="1" rowspan="1"><p>117</p>
</td>
<td colspan="1" rowspan="1"><p>124</p>
</td>
<td colspan="1" rowspan="1"><p>163-170</p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p>Maximum number of SDCCHs per BCSU</p>
</td>
<td colspan="1" rowspan="1"><p>384</p>
</td>
<td colspan="1" rowspan="1"><p>384</p>
</td>
<td colspan="1" rowspan="1"><p>768</p>
</td>
<td colspan="1" rowspan="1"><p>768</p>
</td>
<td colspan="1" rowspan="1"><p>1760</p>
</td>
</tr>
<tr align="left" char="" charoff="50" valign="top">
<td colspan="1" rowspan="1"><p>Maximum number of TCHs per BCSU</p>
</td>
<td colspan="1" rowspan="1"><p>256</p>
</td>
<td colspan="1" rowspan="1"><p>256</p>
</td>
<td colspan="1" rowspan="1"><p>512</p>
</td>
<td colspan="1" rowspan="1"><p>512</p>
</td>
<td colspan="1" rowspan="1"><p>880</p>
</td>
</tr>
</tbody>
</table>
</div>
</div>


<a name="feb27414465111" shape="rect"></a>
<dl class="note-notification">
<dt class="note-caption">Note</dt>
<dd>The weakest CPU determines the maximum radio network configuration,
that is, if there is at least one CP4C32 CPU in the BSC, the BSC supports
the configuration A. If there is at least one CP4HX and no CP4C32 CPUs in
the BSC, the BSC supports configuration B. If all CPUs are of the CP6LX type,
the BSC can support configuration C (BSCi) or D (BSC2i).</dd>
</dl>


<a name="feb27414472512" shape="rect"></a>
<dl class="note-notification">
<dt class="note-caption">Note</dt>
<dd>Configurations B, C, and D can only be supported if the
S6 Large Capacity BSC feature is activated. This does not apply to the BSC2i
new deliveries.</dd>
</dl>


<a name="feb27414475313" shape="rect"></a>
<dl class="note-notification">
<dt class="note-caption">Note</dt>
<dd>The maximum amount of PrimeSites depends also on LapD capacity
of current configuration. Due to that, it is not possible in all configurations
to create the maximum amount of PrimeSites.</dd>
</dl>
</div>
</body>
</html>