From arif.i84 at gmail.com Sat Nov 22 11:29:42 2014 From: arif.i84 at gmail.com (arif) Date: Sat, 22 Nov 2014 11:29:42 +0000 (UTC) Subject: osmobts multiple bts References: <2533243.YnCiA6E9Ub@yavuz> Message-ID: Tom Tsou tsou.cc> writes: > > On Tue, Jun 3, 2014 at 12:18 PM, Yavuz Mert gmail.com> wrote: > > Hi all, > > Can I use the two transceivers of UmTrx as two different BTS using osmobts-trx > > and osmo-trx.(Having different ipa-unit-id's) > > I considered running single osmo-trx and two instances of osmobts-trx which > > would require hacking UDP port numbers for clock, ctrl and data ports, sending > > clock indication to both osmobts-trx instances from osmo-trx. > > Or maybe there is already a saner method i could not figure > > Right now you can only drive the separate RF paths as two TRX units > controlled by one osmobts instance. Communicating with each TRX > independently with multiple osmobts instances is not supported. The > reason for this is that are some operations (e.g. thread setup) that > are tied to TRX0 with the expectation of a single C0 setup rather than > completely independent configuration of channels. > > -TT > > Hi Tom, Can you please elaborate a little "how can i drive the seperate RF paths as two TRX units controlled by one osmobts instance?" i have tried setting the configuration file for osmobts-trx (osmo-bts.cfg) by adding 'trx 1' section at the end, but i got an error when starting osmobts. i was not able to find any documentation regarding this setup. further fairwaves umtrx hardware supports 2 seperate RF paths, does that mean that i can use fairwaves umtrx hardware with single osmo-trx and single osmobts instance? thanks, Arif