Hi,<br><br>I saw something wierd using misdn_log to see the Abis
communication : even if i don't call or send SMS I can see a periodic
paging and a periodic RACH answer.<br>The period of the paging is 2.6 seconds.<br>The RACH appears 16 or 17 ms after the paging.<br>In attached file the capture (open with wireshark) : <br>1. a call Mobile1(Nokia6310i)-->2(Ericsson)<br>
2. a SMS Mobile 1-->2<br>3. a call Mobile 2-->1<br>4. a SMS Mobile 2-->1<br>Between these 4 operations we can see lot of paging and RACH with no interruption.<br><br>
Does anyone understand this?<br><br>Btw the SMS doesn't work for me. It is transmitted towards the BTS but not fowarded from the BTS to the 2nd mobile.<br><br>Eric Cathelinaud<br><br><div class="gmail_quote">2009/7/23 Eric Cathelinaud <span dir="ltr"><<a href="mailto:e.cathelinaud@googlemail.com" target="_blank">e.cathelinaud@googlemail.com</a>></span><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>Oh nice </div>
<div>thanks for the information</div>
<div> </div>
<div>Best regards</div>
<div>Eric Cathelinaud<br><br></div>
<div class="gmail_quote">2009/7/23 Dieter Spaar <span dir="ltr"><<a href="mailto:spaar@mirider.augusta.de" target="_blank">spaar@mirider.augusta.de</a>></span><div><div></div><div><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;">Hello Eric,<br>
<div><br>On Thu, 23 Jul 2009 11:35:33 +0200, "Eric Cathelinaud" <<a href="mailto:e.cathelinaud@googlemail.com" target="_blank">e.cathelinaud@googlemail.com</a>> wrote:<br>><br>> I would like to ask another question. I can see on which time slot the burst<br>
> is sent but i can't see the frame and the multiframe number. Is it available<br>> somewhere?<br><br></div>Not in the Abis communication, its the BTS which cares about frames<br>but not the BSC. For the nanoBTS it is most certainly possible to get<br>
debug traces from the debug port (but probably not on Abis) which<br>contain the frame number, but I am not aware that the same is possible<br>for the BS-11.<br><br>If you are interested in this low-level Layer 1 stuff, you might have<br>
a look at OpenBTS, you can adjust nearly everything or trace at a really<br>low level.<br><br>Best regards,<br> Dieter<br><font color="#888888">--<br>Dieter Spaar, Germany <a href="mailto:spaar@mirider.augusta.de" target="_blank">spaar@mirider.augusta.de</a><br>
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