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.