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-rw-r--r--OsmoMSC/images/sgs-imsi_attach_lu.msc15
1 files changed, 15 insertions, 0 deletions
diff --git a/OsmoMSC/images/sgs-imsi_attach_lu.msc b/OsmoMSC/images/sgs-imsi_attach_lu.msc
new file mode 100644
index 0000000..e62c2b8
--- /dev/null
+++ b/OsmoMSC/images/sgs-imsi_attach_lu.msc
@@ -0,0 +1,15 @@
+msc {
+ UE, MME, VLR [label="MSC/VLR"], HSS [label="HSS/HLR"];
+
+ UE => MME [label="Attach Request"];
+ UE box HSS [label="Steps 3..16 of LTE Attach procedure TS 23.401"];
+ MME box MME [label="Derive VLR Number"];
+ MME => VLR [label="LU Request"];
+ VLR box VLR [label="Create SGs Association"];
+ VLR box HSS [label="MAP/GSUP UL / ISD"];
+ MME <= VLR [label="LU Accept"];
+ UE box HSS [label="Steps 17..16 of LTE Attach procedure TS 23.401"];
+ |||;
+ ...;
+ MME <= VLR [label="Paging Request"];
+}