OSMOCOM TRX_BTS_BSC Connection Issue

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Pau Espin Pedrol pespin at sysmocom.de
Thu Apr 9 12:39:53 UTC 2020


Hi,

I have the feeling the connection between osmo-trx and osmo-bts-trx is 
good. The problem is that your BTS<->BSC<->... is failing.

BTs shows these messages at startup because osmo-trx is not yet running:
""""
 > osmo-bts-trx[23221]: <000b> trx_if.c:1174 phy0.0: Open transceiver
 > osmo-bts-trx[23221]: <000b> trx_if.c:185 phy0.0: No satisfactory
 > response from transceiver(CMD POWEROFF)
"""

Then at some point osmo-trx answers:
"""
 > ubuntu-HP-EliteBook-8470p osmo-trx-uhd[8282]: Thu Apr  9 11:22:24 
2020 DTRXCTRL <0002> Transceiver.cpp:778 [tid=140554180474624][chan=0] 
command is 'POWEROFF'
 > ubuntu-HP-EliteBook-8470p osmo-trx-uhd[8282]: Thu Apr  9 11:22:24 
2020 DTRXCTRL <0002> Transceiver.cpp:923 [tid=140554180474624][chan=0] 
response is 'RSP POWEROFF 0'
"""

But it's already too late, the BTS is already exiting due to some issue 
in Abis:
"""
 > osmo-bts-trx[23221]: <000d> abis.c:142 Signalling link down
 > osmo-bts-trx[23221]: <0001> bts.c:292 Shutting down BTS 0, Reason 
Abis close
"""

Regards,
Pau

-- 
- Pau Espin Pedrol <pespin at sysmocom.de>         http://www.sysmocom.de/
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