<p><a href="https://gerrit.osmocom.org/14191">View Change</a></p><p>1 comment:</p><ul style="list-style: none; padding: 0;"><li style="margin: 0; padding: 0;"><p><a href="https://gerrit.osmocom.org/#/c/14191/1/bts/BTS_Tests.ttcn">File bts/BTS_Tests.ttcn:</a></p><ul style="list-style: none; padding: 0;"><li style="margin: 0; padding: 0 0 0 16px;"><p style="margin-bottom: 4px;"><a href="https://gerrit.osmocom.org/#/c/14191/1/bts/BTS_Tests.ttcn@3345">Patch Set #1, Line 3345:</a> <code style="font-family:monospace,monospace">c_PCU_DATA</code></p><p><blockquote style="border-left: 1px solid #aaa; margin: 10px 0; padding: 0 10px;">So that '313233'O prefix is not needed here, right? What is the purpose of it in general?</blockquote></p><p style="white-space: pre-wrap; word-wrap: break-word;">as the comment indicates a few lines above: /* three characters prefix: last 3 digits of IMSI as ASCII */</p><p style="white-space: pre-wrap; word-wrap: break-word;">The BTS needs to know the IMSI modulo 1000 in order to compute the paging group. For some reason whoever designed that part of the PCU interface decided not to put it into a header, but rather prefix the MAC block with three ASCII bytes expressing the last three digits of the IMSI.</p></li></ul></li></ul><p>To view, visit <a href="https://gerrit.osmocom.org/14191">change 14191</a>. To unsubscribe, or for help writing mail filters, visit <a href="https://gerrit.osmocom.org/settings">settings</a>.</p><div itemscope itemtype="http://schema.org/EmailMessage"><div itemscope itemprop="action" itemtype="http://schema.org/ViewAction"><link itemprop="url" href="https://gerrit.osmocom.org/14191"/><meta itemprop="name" content="View Change"/></div></div>
<div style="display:none"> Gerrit-Project: osmo-ttcn3-hacks </div>
<div style="display:none"> Gerrit-Branch: master </div>
<div style="display:none"> Gerrit-MessageType: comment </div>
<div style="display:none"> Gerrit-Change-Id: I0f2c4f053ef1b8d61d565f94a548c47fe3666f16 </div>
<div style="display:none"> Gerrit-Change-Number: 14191 </div>
<div style="display:none"> Gerrit-PatchSet: 1 </div>
<div style="display:none"> Gerrit-Owner: Harald Welte <laforge@gnumonks.org> </div>
<div style="display:none"> Gerrit-Reviewer: Harald Welte <laforge@gnumonks.org> </div>
<div style="display:none"> Gerrit-Reviewer: Jenkins Builder (1000002) </div>
<div style="display:none"> Gerrit-Reviewer: Vadim Yanitskiy <axilirator@gmail.com> </div>
<div style="display:none"> Gerrit-Comment-Date: Sun, 26 May 2019 21:08:39 +0000 </div>
<div style="display:none"> Gerrit-HasComments: Yes </div>
<div style="display:none"> Gerrit-HasLabels: No </div>