blob: b18a43a600ad0c65e62c3fd3801636d04df2209e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
msc {
hscale="2";
ms[label="MS,BSS"],__msc[label="MSC"],hlr[label="HLR proxy"],home[label="Home HLR"];
ms => __msc [label="Location Updating Request (Periodic)"];
ms rbox __msc [label="Authentication,\nusing the next of 5 auth tuples the MSC has stored"];
__msc => hlr [label="Update Location Request"];
hlr rbox hlr [label="Use already set up proxy path"];
hlr abox hlr [label="(8) proxy cache already has all information to answer"];
__msc <= hlr [label="Insert Subscriber Data Request"];
__msc => hlr [label="Insert Subscriber Data Result"];
__msc <= hlr [label="Update Location Result"];
ms <= __msc [label="Location Updating Accept"];
hlr rbox hlr [label="(9) Verify Update Location with home HLR"];
|||;
--- [label="if the home HLR has no changes and accepts"];
hlr => home [label="Update Location Request"];
hlr <= home [label="Insert Subscriber Data Request"];
hlr => home [label="Insert Subscriber Data Result"];
hlr abox hlr [label="Notice identical MSISDN"];
hlr <= home [label="Update Location Result"];
|||;
--- [label="if the home HLR is unreachable"];
hlr => home [label="Update Location Request"];
hlr abox hlr [label="no link\nor\nresponse timeout"];
hlr rbox hlr [label="Don't care, carry on"];
|||;
--- [label="if the home HLR has a modified MSISDN, and accepts"];
hlr => home [label="Update Location Request"];
hlr <= home [label="Insert Subscriber Data Request"];
hlr => home [label="Insert Subscriber Data Result"];
hlr abox hlr [label="Notice changed MSISDN"];
__msc <= hlr [label="Insert Subscriber Data Request"];
__msc => hlr [label="Insert Subscriber Data Result"];
hlr <= home [label="Update Location Result"];
|||;
--- [label="if the home HLR rejects"];
hlr => home [label="Update Location Request"];
hlr <= home [label="Update Location Error"];
__msc <= hlr [label="Cancel Location Request"];
__msc => hlr [label="Cancel Location Result"];
hlr rbox hlr [label="Clear subscriber cache"];
}
|
