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| author | Pau Espin Pedrol <pespin@sysmocom.de> | 2021-04-27 18:20:15 +0200 |
|---|---|---|
| committer | Pau Espin Pedrol <pespin@sysmocom.de> | 2021-04-29 14:22:33 +0200 |
| commit | 6710670cb14a6bafb8c708e0ec673428a36a92bd (patch) | |
| tree | c051f42f5347044223fe85ac4cd0a6282db69c0e /openbsc/src/mgcp/mgcp_protocol.c | |
| parent | a361cab54a6404572c76ac36e127fc3e3e4ceaab (diff) | |
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).
Related: SYS#5337
Change-Id: Ic5f175b179973d0a50d94f00e15f5a3e332605fc
Diffstat (limited to 'openbsc/src/mgcp/mgcp_protocol.c')
0 files changed, 0 insertions, 0 deletions