Change in osmo-msc[master]: WIP: Fill Last Used E-UTRAN PLMN Id when in CSFB
gerrit-no-reply at lists.osmocom.org
Tue Apr 27 16:51:26 UTC 2021
Hello Jenkins Builder, laforge, dexter,
I'd like you to reexamine a change. Please visit
to look at the new patch set (#2).
Change subject: WIP: Fill Last Used E-UTRAN PLMN Id when in CSFB
WIP: Fill Last Used E-UTRAN PLMN Id when in CSFB
Since recently, osmo-bsc behaves strictly as per specs, meaning it will
only send the "Cell selection indicator after release of all TCH and SDCCH IE"
in RR Channel Release iff:
* "Last Used E-UTRAN PLMN Id" was received in the CommonID sent MSC->BSC
* "Last Used E-UTRAN PLMN Id" was received insider "old BSS to new BSS Information"
in the HandoverRequest sent MSC->BSC.
On the other hand, CSFB_Indicator from ClearCommand MSC->BSC is nw
ignored and not taken into account.
Hence, let's update osmo-msc to also behave correctly by sending the
Last Used E-UTRAN PLMN ID at CommonID tx time to avoid regressions in
CSFB support when running against newer osmo-bsc.
Let's keep sending the CSFB Indicator in ClearCommand as we used too, in
order to keep compatibility with older BSCs (as per spec).
6 files changed, 31 insertions(+), 2 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-msc refs/changes/15/23915/2
To view, visit https://gerrit.osmocom.org/c/osmo-msc/+/23915
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Gerrit-Owner: pespin <pespin at sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: dexter <pmaier at sysmocom.de>
Gerrit-Reviewer: laforge <laforge at osmocom.org>
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