limesdr mini - osmo cni

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ah med grgrehreher at gmail.com
Tue Dec 24 18:14:09 UTC 2019


It's working.

now i can see the network after changing the remote ip from 192.168.122.1
to localhost !
just missed to change it as you said!
i will try to provide a working config for other users ASAP !

thanks!

Le mar. 24 déc. 2019 à 19:03, Sandi Suhendro <djks74 at gmail.com> a écrit :

> Signaling link down appear because OML not connecting,
> have you try use oml remote-ip 127.0.0.1  ?
>
> You running on the same computer for the CNI right?
>
> On Wed, Dec 25, 2019 at 12:33 AM ah med <grgrehreher at gmail.com> wrote:
>
>> HI all,
>>
>> Just found that theproblem is with the osmo-bts-trx :
>>
>> journalctl -f -u osmo-bts-trx.service
>>
>> <0010> telnet_interface.c:104 Available via telnet 127.0.0.1 4241
>>>  osmo-bts-trx[26145]: <0012> input/ipaccess.c:897 enabling ipaccess BTS
>>> mode, OML connecting to 192.168.122.1:3002
>>>  osmo-bts-trx[26145]: <000b> trx_if.c:1155 phy0.0: Open transceiver
>>>  osmo-bts-trx[26145]: <000b> trx_if.c:173 phy0.0: No satisfactory
>>> response from transceiver(CMD POWEROFF)
>>>  osmo-bts-trx[26145]: <0009> pcu_sock.c:929 PCU socket connected to
>>> external PCU
>>>  osmo-bts-trx[26145]: <0001> oml.c:91 OC=GPRS-CELL INST=(00,ff,ff):
>>> Sending PCU version report to BSC: 0.7.0
>>>  osmo-bts-trx[26145]: <0001> oml.c:91 OC=GPRS-CELL INST=(00,ff,ff):
>>> Sending PCU version report to BSC: 0.7.0
>>>  osmo-bts-trx[26145]: <0001> oml.c:91 OC=GPRS-CELL INST=(00,ff,ff):
>>> Sending PCU version report to BSC: 0.7.0
>>>  osmo-bts-trx[26145]: <0001> oml.c:91 OC=GPRS-CELL INST=(00,ff,ff):
>>> Sending PCU version report to BSC: 0.7.0
>>>  osmo-bts-trx[26145]: <0001> oml.c:91 OC=GPRS-CELL INST=(00,ff,ff):
>>> Sending PCU version report to BSC: 0.7.0
>>>  osmo-bts-trx[26145]: <0001> oml.c:91 OC=GPRS-CELL INST=(00,ff,ff):
>>> Sending PCU version report to BSC: 0.7.0
>>>  osmo-bts-trx[26145]: <000d> abis.c:144 Signalling link down
>>>  osmo-bts-trx[26145]: <0001> bts.c:285 Shutting down BTS 0, Reason Abis
>>> close
>>>  osmo-bts-trx[26145]: Shutdown timer expired
>>>  osmo-bts-trx[26145]: ((*))
>>>  osmo-bts-trx[26145]:   |
>>>  osmo-bts-trx[26145]:  / \ OsmoBTS
>>>  systemd[1]: osmo-bts-trx.service: Main process exited, code=exited,
>>> status=42/n/a
>>>  systemd[1]: osmo-bts-trx.service: Failed with result 'exit-code'.
>>>  systemd[1]: osmo-bts-trx.service: Service hold-off time over,
>>> scheduling restart.
>>>  systemd[1]: osmo-bts-trx.service: Scheduled restart job, restart
>>> counter is at 1.
>>>
>>
>> the problem is with "Signalling link down" and " osmo-bts-trx[26145]:
>> <0001> bts.c:285 Shutting down BTS 0, Reason Abis close"
>>
>> i tried to verif the unit-id for both osmo-btstrx and osmo-bsc and found
>> that it's the same!
>> still can't figure why the abis close.
>>
>> for the config files :
>>
>> osmo-bts-trx.cfg:
>> https://pastebin.com/wgBxXN6G
>>
>> osmo-bsc.cfg :
>> https://pastebin.com/jh81aKrM
>>
>> Setup :
>> osmocom CNI latest build for ubuntu 18.04 + limesdr mini
>>
>> Thanks!
>>
>>
>>
>> Le mar. 17 déc. 2019 à 22:03, Pau Espin Pedrol <pespin at sysmocom.de> a
>> écrit :
>>
>>>
>>>
>>> On 12/17/19 8:55 PM, ah med wrote:
>>> > the problem it's that i can't see the network using my phone,neither
>>> on
>>> > band 1800 or 900 !
>>> >
>>> >       osmo-trx-lms[7995]: Sun Dec  8 18:02:05 2019 DTRXCTRL <0001>
>>> >     Transceiver.cpp:773 [tid=140437098583808][chan=0] command is
>>> 'POWEROFF'
>>> >       osmo-trx-lms[7995]: Sun Dec  8 18:02:05 2019 DTRXCTRL <0001>
>>> >     Transceiver.cpp:918 [tid=140437098583808][chan=0] response is 'RSP
>>> >     POWEROFF 0'
>>> >
>>> >
>>> > as you see, for the air interface,the program is sending  a
>>> 'POWEROFF'
>>> > command to the limesdrmini ! means that limesdr can't act as a bts
>>> > correctly!right ?
>>>
>>> As I said, it's expected that the BTS upon connecting to osmo-trx first
>>> sends a POWEROFF command to make sure the TRX is stopped, in a "known"
>>> state. Once there, it configures it and finally turns it on with
>>> "POWERON".
>>>
>>> > is there any way to dig more into the cause of this behavior ? the
>>> only
>>> > log i can see is from the systemctl !
>>>
>>> Please read the wiki and the user manuals to learn the basics on how to
>>> operate the osmocom software. Specially how to access the VTY and
>>> configure it as well as get logging information.
>>> https://ftp.osmocom.org/docs/latest/
>>>
>>> --
>>> - Pau Espin Pedrol <pespin at sysmocom.de>         http://www.sysmocom.de/
>>> =======================================================================
>>> * sysmocom - systems for mobile communications GmbH
>>> * Alt-Moabit 93
>>> * 10559 Berlin, Germany
>>> * Sitz / Registered office: Berlin, HRB 134158 B
>>> * Geschaeftsfuehrer / Managing Director: Harald Welte
>>>
>>
>
> --
> Best Regards,
> Sandi
>
>
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