Query - Running two ARFCN on UmTRX using OsmoBTS

[Amber and Sarosh]

Hi,
Thank you for your help Alexander.

We have configured 
our system to use both the channels of UmTRX on different ARFCNs of 
GSM900 band with OsmoNITB, OsmoTRX and OsmoBTS.We have a Fairwaves UmTRX version 2.2 with us. Can you please confirm 
if the two channels of a single UmTRX can be configured to operate on 
two different bands for example one channel on GSM900 and the other one 
on DCS1800?

Regards,
Amber & Sarosh

Regards,
Amber & Sarosh


From: alexander.chemeris at gmail.com
Date: Fri, 1 May 2015 23:37:25 -0400
Subject: Re: Query - Running two ARFCN on UmTRX using OsmoBTS
To: amber_sarosh at hotmail.com
CC: umtrx at lists.osmocom.org; andy.avtushenko at gmail.com

Amber & Sarosh,
We recommend using the following branches:osmo_trx: fairwaves/masterlibosmocore: master
libosmo-abis: fairwaves/masterlibsmpp34: master
osmo_bts: fairwaves/debianopenbsc: fairwaves/master
Let us know if you have any issues using them.
On Tue, Apr 28, 2015 at 1:24 AM, Amber and Sarosh <amber_sarosh at hotmail.com> wrote:




Hi,
Thankyou for your response.
For installation of osmo-bts we are following the instructions at http://openbsc.osmocom.org/trac/wiki/network_from_scratch . Kindly inform which branch should we use?

Regards,
Amber & Sarosh


> From: alexander.chemeris at gmail.com
> Date: Mon, 27 Apr 2015 15:25:08 -0400
> Subject: Re: Query - Running two ARFCN on UmTRX using OsmoBTS
> To: amber_sarosh at hotmail.com
> CC: umtrx at lists.osmocom.org; andy.avtushenko at gmail.com
> 
> Amber & Sarosh,
> 
> It looks like you're using a wrong version of osmo-bts. Whuch branch
> and commit are you using?
> 
> On Mon, Apr 27, 2015 at 5:39 AM, Amber and Sarosh
> <amber_sarosh at hotmail.com> wrote:
> > Hi
> > Thanks for your reply. We have tested the configurations that you mailed but
> > our setup still produces the following error message when osmobts is run;
> >
> > <0006> scheduler.c:212 Init scheduler for trx=0
> > <000a> trx_if.c:485 Open transceiver for trx=0
> > <000a> trx_if.c:496 Waiting for transceiver send clock
> > There is no such command.
> > Error occurred during reading below line:
> >   rxgain 12
> >
> > Unknown TRX 1. Aavialable TRX are: 0..0
> > Failed to parse the config file: '/root/.osmocom/osmo-bts.cfg'
> >
> > Any help in this regard is much appreciated. Thanks.
> >
> > Regards,
> > Amber & Sarosh
> >
> >
> > ________________________________
> > Date: Fri, 24 Apr 2015 08:54:35 -0800
> > Subject: Query - Running two ARFCN on UmTRX using OsmoBTS
> > From: andy.avtushenko at gmail.com
> > To: amber_sarosh at hotmail.com
> > CC: fairsupport at fairwaves.co
> >
> >
> > Hello Amber & Sarosh
> > You have to add these lines below into /etc/osmocom/openbsc.cfg right after
> > trx0 configuration
> > trx 1
> >    rf_locked 0
> >    arfcn 184 (set the right ARFCN for you here )
> >    nominal power 23
> >    max_power_red 0
> >    rsl e1 tei 0
> >     timeslot 0
> >      phys_chan_config TCH/F
> >     timeslot 1
> >      phys_chan_config TCH/F
> >     timeslot 2
> >      phys_chan_config TCH/F
> >     timeslot 3
> >      phys_chan_config TCH/F
> >     timeslot 4
> >      phys_chan_config TCH/F
> >     timeslot 5
> >      phys_chan_config TCH/F
> >     timeslot 6
> >      phys_chan_config TCH/F
> >     timeslot 7
> >      phys_chan_config TCH/F
> >
> > And add into etc/osmocom/osmo-bts.cfg
> >
> > trx 1
> >   rxgain 12
> >   power 0
> >
> > restart services: sudo sv restart osmo-trx osmo-bts osmo-nitb
> >
> > Regarding trx band dividing, theoretically it might possible but we haven't
> > tested that
> > --
> > Best regards,
> > Andy
> 
> 
> 
> -- 
> Regards,
> Alexander Chemeris.
> CEO, Fairwaves, Inc.
> https://fairwaves.co
> 
> 
 		 	   		  


-- 
Regards,
Alexander Chemeris.
CEO, Fairwaves, Inc.
https://fairwaves.co


 		 	   		  
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