7 Feb
2019
7 Feb
'19
3:43 p.m.
On Thu, Feb 07, 2019 at 03:39:29PM +0200, Mykola Shchetinin wrote:
Dear Osmocom community,
Does somebody have experience using multiple 3G femtocells connected to a single
HNBGW? Do cell reselection and handover work properly? How did you configure it?
Also, Osmocom (or Syscmocom?) used 3G networks at Congress 35c3. Were you using
multiple femtocells?
Were they connected to the same HNBGW? How did you configure them for cell
reselection and handover to work smoothly?
35c3 GSM team used multiple femto cells, but handover requires MSC
interaction (inter-"BSC" or inter-RAT handover procedures) which I am only
just adding to osmo-msc now, in the course of inter-MSC handover support.
So we simply attached N nano3G to a single hnbgw and the msc, and did not
support 3G handover.
Once we might support that: I'm not sure how to tell a nano3G about
neighbors, nor am I sure about 3G handover procedures. I know though that
the RTP is forwarded femto <-> MSC, so *something* needs to switch it.
Cell reselection should work AFAICT, though I didn't test for that
specifically. What I did see working well on 35c3 is that a phone for
which the CN disallowed 3G access camped over to 2G and vice versa.
~N