Questions regarding sysmoBTS2050 power management

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Holger Hans Peter Freyther holger at freyther.de
Sun Jun 22 13:38:18 UTC 2014


hi!

I would like to have your opinion on the power management of the
sysmoBTS2050 hardware in various conditions:


Using only a single TRX with 10:

We have to disable the second TRX. Would you want to set a
different device id in the EEPROM for the sysmoBTS2050 to indicate
a single TRX board? If yes we could have nominal power return 40
and something like the sysmobts-mgr could disable the power of the
second trx on start?

Another option would be to make it configurable inside the bts
configuration file. In this case the bts process would need to
tell the sysmobts-mgr to switch off the second trx?


Reducing power in a dual-bts setup:

The current unfinished idea would be that in case the system
heats up too much we reduce the transmit power on the first
TRX. Is this enough? Is this enough because in the long run we
will manage both TRX from the first one? Or shall we handle
the heat inside OpenBSC to temporarily reduce the power? This
way we would need to send information in case the system returns
to an acceptable temperature?



holger




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