1 files changed, 16 insertions, 0 deletions
diff --git a/2019/osmodevcon2019-cell_broadcast/smscb-4g.msc b/2019/osmodevcon2019-cell_broadcast/smscb-4g.msc
new file mode 100644
index 0000000..2e0ef2a
--- /dev/null
+++ b/2019/osmodevcon2019-cell_broadcast/smscb-4g.msc
@@ -0,0 +1,16 @@
+msc {
+	hscale="2";
+	ue [label="eUE"], nodeb [label="eNodeB"], mme [label="MME"], cbc [label="CBC"], cbe [label="CBE"];
+
+	cbc <= cbe [label="New message (duration, geographic scope)"];
+
+	cbc box cbc [label="Determine list of MMEs in scope"];
+	mme <= cbc [label="SBc-AP WRITE-REPLACE WARNING MSG"];
+
+	mme box mme [label="Determine list of eNodeBs in scope"];
+	nodeb <= mme [label="S1-AP Write-Replace Warning Req"];
+	nodeb => mme [label="S1-AP Write-Replace Warning Resp"];
+	mme => cbc [label="SBc-AP Write-Replace Warning Ind"];
+
+	ue <= nodeb [label="SIB Warning"];
+}