| Harald Welte | 732443c | 2018-10-05 23:42:14 +0200 | [diff] [blame] | 1 | msc { |
| 2 | hscale=2; |
| 3 | UE, MME, VLR [label="MSC/VLR"], HSS [label="HSS/HLR"], SMSC; |
| 4 | |
| 5 | UE box HSS [label="EPS/IMSI attach procedure"]; |
| 6 | ...; |
| 7 | UE box MME [label="UE triggered Service Request"]; |
| 8 | UE => MME [label="UL NAS Transport"]; |
| 9 | MME => VLR [label="SGsAP UPLINK UNITDATA\n(CP-DATA/RP-DATA/TPDU)"]; |
| 10 | VLR => SMSC [label="MAP/GSUP Forward SM"]; |
| 11 | MME <= VLR [label="SGsAP DOWNLINK UNITDATA"]; |
| 12 | UE <= MME [label="DL NAS Transport"]; |
| 13 | ...; |
| 14 | |
| 15 | VLR <= SMSC [label="Delivery Report"]; |
| 16 | MME <= VLR [label="SGsAP DOWNLINK UNITDATA"]; |
| 17 | UE <= MME [label="DL NAS Transport"]; |
| 18 | UE => MME [label="UL NAS Transport"]; |
| 19 | MME => VLR [label="SGsAP UPLINK UNITDATA"]; |
| 20 | MME <= VLR [label="SGsAP RELEASE REQ"]; |
| 21 | } |