osmo-nitb: %This BTS does not support TSC!=BCC

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Erich Dachleger edachleger at yahoo.com
Tue Jun 24 09:32:17 UTC 2014


Hi all,

I have followed the the guide in network_from_scratch and use 1 osmocom phone as transceiver. I use the suggested configs for open-bsc.cfg and osmo-bts.cfg and can register to the network I run.


However in the output from osmo--nitb ,in the start I get a message about the training sequence:
________________________________________________

% This BTS does not support a TSC!=BCC, Falling back to BCC
and after the 

DB: Database initialized messages
DB: Database prepared
----------------------------------
--------------------------------

<0005>bsc.init.c:265 bootstrapping RSL for BTS/TRX(0/0) on ARFCN 533 using MCC=1 MNC=1 LAC=1 CID=0 BSIC=63 TSC 7
------------------------------------------
<0002> gsm.subscriber.c: 378 Subscriber <imsi> ATTACHED LAC=1
-----------------------------------------------------------------------------------------------------

I have entered hlr.sqlite and assigned an extension to my imsi but when I enter the VTY
and execute
enable

subscriber imsi <imsi> sms send test123
I get:
%Unknown command
So it appears smsqueue is not enabled. Does anyone know what to look for to enable it?
I have tried the vty commands  trigger smsqueue but to no avail..
According to the network from scratch wiki sms (and broadcast) should function with one phone where TS0 is served
-------------------------------------------------------------------


osmo-bts-trx outputs lines of

                                                                            

<0006> scheduler.c 338 ----                      chan=SDCC/4(0)
                                             ---                    chan=SACC/4(0)
                                           -----                      chan=BCCH(0)
----------------------------------------------------------------------------------------------------------
When the firmware is loaded onto the phone I get time on arrival and  signal to noise ratio messages:
TOA=4 snr=16384 (Thres 2560) freq_err=40 pm=-70
--------------------------------------------------------
So that is grossly exceeding the threshold value.
But is that related to not being able to use smsqueue?

Regards
Erich
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