limesdr mini - osmo cni

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ah med grgrehreher at gmail.com
Tue Dec 24 17:33:47 UTC 2019


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
>
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