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dexter uploaded patch set #4 to this change.

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nacc_fsm: Add support for NACC with UTRAN and E-UTRAN cells

The NACC procedure in OsmoPCU currently only supports NACC with GERAN
cells. When an UTRAN or E-UTRAN cell is proposed in the
PacketCellChangeNotification, then the FSM is immediately terminated,
meaning that the NACC procedure can not commence.

When the NACC procedure is carried out for UTRAN or E-UTRAN cells, the
PCU will not send any system information to the UE. Instead it
immediately sends a PacketCellChangeContinue message. This also means
that we do not carry out any RAN Information Requests in the background.

This patch adds logic to detect if the proprosed cell is an UTRAN or
E-UTRAN cell and the adds a new transition to the FSM so that a short
route to NACC_ST_TX_CELL_CHG_CONTINUE can be taken.

Related: OS#6044
Change-Id: I96280f0ec5955ed3cb17641bf4118496c929bdac
---
M src/nacc_fsm.c
M src/nacc_fsm.h
2 files changed, 127 insertions(+), 18 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-pcu refs/changes/38/33538/4

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