| Harald Welte | 09806e7 | 2015-12-31 12:49:02 +0100 | [diff] [blame] | 1 | msc { |
| 2 | hscale = "3"; |
| 3 | ue,hnb,hnbgw,cn; |
| 4 | |
| 5 | cn box cn [ label = "subscriber A dials a call; signalling arrives at CN" ]; |
| 6 | |
| 7 | cn => hnbgw [ label = "SCCP UDT (RANAP Paging Command)" ]; |
| 8 | hnbgw => hnb [ label = "RUA ConnectionlessTransfer (RANAP Paging Command)" ]; |
| 9 | hnb => ue [ label = "RRC Paging" ]; |
| 10 | |
| 11 | ue box hnb [ label = "Radio Channel Establishment" ]; |
| 12 | ue => hnb [ label = "RRC (CM PAGING RESP)" ] ; |
| 13 | hnb => hnbgw [ label = "RUA CONNECT (RANAP Initial UE Msg (CM PAGING RESP))" ]; |
| 14 | hnbgw => cn [ label = "SCCP CR (RANAP Initial UE Msg (CM PAGING RESP))" ]; |
| 15 | cn >> hnbgw [ label = "SCCP CC" ]; |
| 16 | |
| 17 | --- [ label = "Optional retrieval of IMSI (if not given in CM or retrived from VLR by TMSI)" ]; |
| 18 | cn => hnbgw [ label = "SCCP DT1 (RANAP DirectTransfer (MM IDENTITY REQ))" ]; |
| 19 | hnbgw => hnb [ label = "RUA DT (RANAP DirectTransfer (MM IDENTITY REQ))" ]; |
| 20 | hnb => ue [ label = "RRC (MM IDENTITY REQ)" ]; |
| 21 | ue >> hnb [ label = "RRC (MM IDENTITY RESP)" ]; |
| 22 | hnb >> hnbgw [ label = "RUA DT (RANAP DirectTransfer (MM IDENTITY RESP))" ]; |
| 23 | hnbgw >> cn [ label = "SCCP DT1 (RANAP DirectTransfer (MM IDENTITY RESP))" ]; |
| 24 | |
| 25 | --- [ label = "Mandatory activation of Integrity Protection" ]; |
| 26 | cn => hnbgw [ label = "SCCP DT1 (RANAP SecurityModeCommand (IK))" ]; |
| 27 | hnbgw => hnb [ label = "RUA DT (RANAP SecurityModeCommand (IK))" ]; |
| 28 | hnb >> hnbgw [ label = "RUA DT (RANAP SecurityModeResponse (IK))" ]; |
| 29 | hnbgw >> cn [ label = "SCCP DT1 (RANAP SecurityModeResponse (IK))" ]; |
| 30 | |
| 31 | cn => hnbgw [ label = "SCCP DT1 (RANAP CommonID)" ]; |
| 32 | hnbgw => hnb [ label = "RUA DT (RANAP CommonID)" ]; |
| 33 | |
| 34 | --- [ label = "Optional Authentication" ]; |
| 35 | cn => hnbgw [ label = "SCCP DT1 (RANAP DirectTransfer (MM AUTH REQ))" ]; |
| 36 | hnbgw => hnb [ label = "RUA DT (RANAP DirectTransfer (MM AUTH REQ))" ]; |
| 37 | hnb => ue [ label = "RRC (MM AUTH REQ)" ]; |
| 38 | ue >> hnb [ label = "RRC (MM AUTH RESP)" ]; |
| 39 | hnb >> hnbgw [ label = "RUA DT (RANAP DirectTransfer (MM AUTH RESP))" ]; |
| 40 | hnbgw >> cn [ label = "SCCP DT1 (RANAP DirectTransfer (MM AUTH RESP))" ]; |
| 41 | |
| 42 | --- [ label = "Optional activation of Encryption" ]; |
| 43 | cn => hnbgw [ label = "SCCP DT1 (RANAP SecurityModeCommand (IK+CK))" ]; |
| 44 | hnbgw => hnb [ label = "RUA DT (RANAP SecurityModeCommand (IK+CK))" ]; |
| 45 | hnb >> hnbgw [ label = "RUA DT (RANAP SecurityModeResponse (IK+CK))" ]; |
| 46 | hnbgw >> cn [ label = "SCCP DT1 (RANAP SecurityModeResponse (IK+CK))" ]; |
| 47 | |
| 48 | cn >> hnbgw [ label = "SCCP DT1 (RANAP DirectTransfer (CM SERV ACC))" ]; |
| 49 | hnbgw >> hnb [ label = "RUA DT (RANAP DirectTransfer (CM SERV ACC))" ]; |
| 50 | hnb >> ue [ label = "RRC (CM SERV ACC)" ]; |
| 51 | |
| 52 | cn => hnbgw [ label = "SCCP DT1 (RANAP DirectTransfer (CC SETUP))" ]; |
| 53 | hnbgw => hnb [ label = "RUA DT (RANAP DirectTransfer (CC SETUP))" ]; |
| 54 | hnb => ue [ label = "RRC (CC SETUP)" ]; |
| 55 | |
| 56 | ue => hnb [ label = "RC (CC ALERTING)" ]; |
| 57 | hnb => hnbgw [ label = "RUA DT (RANAP DirectTransfer (CC ALERTING))" ]; |
| 58 | hnbgw => cn [ label = "SCCP DT1 (RANAP DirectTransfer (CC ALERTING))" ]; |
| 59 | cn box cn [ label = "Signalling towards A subscriber via ISUP, SIP, ..." ]; |
| 60 | |
| 61 | --- [ label = "Assignment of Voice Channel" ]; |
| 62 | cn => hnbgw [ label = "SCCP DT1 (RANAP RAB Assign Cmd)" ]; |
| 63 | hnbgw => hnb [ label = "RUA DT (RANAP RAB Assign Cmd)" ]; |
| 64 | hnb >> hnbgw [ label = "RUA DT (RANAP RAB Assign Rsp)" ]; |
| 65 | hnbgw >> cn [ label = "SCCP DT1 (RANAP RAB Assign Rsp)" ]; |
| 66 | |
| 67 | ue => hnb [ label = "RRC (CC CONNECT)" ]; |
| 68 | hnb => hnbgw [ label = "RUA DT (RANAP DirectTransfer (CC CONNECT))" ]; |
| 69 | hnbgw => cn [ label = "SCCP DT1 (RANAP DirectTransfer (CC CONNECT))" ]; |
| 70 | |
| 71 | cn box ue [ label = "Voice channel open" ]; |
| 72 | |
| 73 | ue box ue [ label = "subscriber B hangs up" ]; |
| 74 | ue => hnb [ label = "RRC (CC DISCONNECT)" ]; |
| 75 | hnb => hnbgw [ label = "RUA DT (RANAP DirectTranfer (CC DISCONNECT))" ]; |
| 76 | hnbgw => cn [ label = "SCCP DT1 (RANAP DirectTranfer (CC DISCONNECT))" ]; |
| 77 | |
| 78 | cn box hnb [ label = "RAB Release or Iu Release" ]; |
| 79 | } |