Hi Sipos,
On Fri, Jun 23, 2023 at 11:18:35AM +0200, Sipos Csaba wrote:
I checked RF and BB hopping with my MetroSite with my
patch added, and
they both seem to work, multi-TRX was tested a couple days ago, that
also works with 2 TRXes. Obviously I did not tested every possible
hopping scenarios, but in both cases the node manager reported the
correct hopping states and I also checked with a spectrum analyzer.
This is good news. Is that patch already in gerrit somewhere?
Anyway, at this point in time I don't see any
particular issues that
indicates a BSC problem. One feature missing is the ability to
configure sectors (Nokia calls a sector a "BTS" while the base station
is called "BCF"). My question is, do we have any BTS type that has
sector configuration support so I can take a look how this was done
(if any) ?
I think we never had support for this in OsmoBSC or even before in OpenBSC.
In GSM/3GPP spec language, every sector is a BTS. The fact that many networks
use sectorized cells is nothing that reflects anywhere in the specification or
the terminology. It's an implementation detail.
I think from the OsmoBSC point of view, a typical 3-sector site would still be
three logical BTSs (in the data model / structures). It's "just" the
respective
manufacturer OML code would have to be adjusted to accomodate a situation where
there are managed objects that only exist once per site, while others
exist per BTS/TRX/...
We have the same situation with Ericsson OM2000 support: Right now one
can only have a single BTS per RBS, as our OM2000 code doesn't
distinguish between MOs that exist once per site only (CF, TF, IS, ...)
and MOs that exist for each BTS.
--
- Harald Welte <laforge(a)osmocom.org>
https://laforge.gnumonks.org/
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