| msc { |
| hscale = "3"; |
| ue,hnb,hnbgw,cn; |
| |
| ue box ue [ label = "subscriber A sends text message" ]; |
| |
| ue box hnb [ label = "Radio Channel Establishment" ]; |
| ue => hnb [ label = "RRC (CM SERV REQ)" ] ; |
| hnb => hnbgw [ label = "RUA CONNECT (RANAP Initial UE Msg (CM SERV REQ))" ]; |
| hnbgw => cn [ label = "SCCP CR (RANAP Initial UE Msg (CM SERV REQ))" ]; |
| cn >> hnbgw [ label = "SCCP CC" ]; |
| |
| --- [ label = "Optional retrieval of IMSI (if not given in CM or retrived from VLR by TMSI)" ]; |
| cn => hnbgw [ label = "SCCP DT1 (RANAP DirectTransfer (MM IDENTITY REQ))" ]; |
| hnbgw => hnb [ label = "RUA DT (RANAP DirectTransfer (MM IDENTITY REQ))" ]; |
| hnb => ue [ label = "RRC (MM IDENTITY REQ)" ]; |
| ue >> hnb [ label = "RRC (MM IDENTITY RESP)" ]; |
| hnb >> hnbgw [ label = "RUA DT (RANAP DirectTransfer (MM IDENTITY RESP))" ]; |
| hnbgw >> cn [ label = "SCCP DT1 (RANAP DirectTransfer (MM IDENTITY RESP))" ]; |
| |
| --- [ label = "Mandatory activation of Integrity Protection" ]; |
| cn => hnbgw [ label = "SCCP DT1 (RANAP SecurityModeCommand (IK))" ]; |
| hnbgw => hnb [ label = "RUA DT (RANAP SecurityModeCommand (IK))" ]; |
| hnb >> hnbgw [ label = "RUA DT (RANAP SecurityModeResponse (IK))" ]; |
| hnbgw >> cn [ label = "SCCP DT1 (RANAP SecurityModeResponse (IK))" ]; |
| |
| cn => hnbgw [ label = "SCCP DT1 (RANAP CommonID)" ]; |
| hnbgw => hnb [ label = "RUA DT (RANAP CommonID)" ]; |
| |
| --- [ label = "Optional Authentication" ]; |
| cn => hnbgw [ label = "SCCP DT1 (RANAP DirectTransfer (MM AUTH REQ))" ]; |
| hnbgw => hnb [ label = "RUA DT (RANAP DirectTransfer (MM AUTH REQ))" ]; |
| hnb => ue [ label = "RRC (MM AUTH REQ)" ]; |
| ue >> hnb [ label = "RRC (MM AUTH RESP)" ]; |
| hnb >> hnbgw [ label = "RUA DT (RANAP DirectTransfer (MM AUTH RESP))" ]; |
| hnbgw >> cn [ label = "SCCP DT1 (RANAP DirectTransfer (MM AUTH RESP))" ]; |
| |
| --- [ label = "Optional activation of Encryption" ]; |
| cn => hnbgw [ label = "SCCP DT1 (RANAP SecurityModeCommand (IK+CK))" ]; |
| hnbgw => hnb [ label = "RUA DT (RANAP SecurityModeCommand (IK+CK))" ]; |
| hnb >> hnbgw [ label = "RUA DT (RANAP SecurityModeResponse (IK+CK))" ]; |
| hnbgw >> cn [ label = "SCCP DT1 (RANAP SecurityModeResponse (IK+CK))" ]; |
| |
| cn >> hnbgw [ label = "SCCP DT1 (RANAP DirectTransfer (CM SERV ACC))" ]; |
| hnbgw >> hnb [ label = "RUA DT (RANAP DirectTransfer (CM SERV ACC))" ]; |
| hnb >> ue [ label = "RRC (CM SERV ACC)" ]; |
| |
| ue => hnb [ label = "RRC (CP-DATA (RP-DATA (SMS SUBMIT)))" ]; |
| hnb => hnbgw [ label = "RUA DT (RANAP DirectTransfer (CP-DATA (RP-DATA (SMS-SUBMIT))))" ]; |
| hnbgw => cn [ label = "SCCP DT1 (RANAP DirectTransfer (CP-DATA (RP-DATA (SMS-SUBMIT))))" ]; |
| |
| cn => hnbgw [ label = "SCCP DT1 (RANAP DirectTransfer (CP-ACK)" ]; |
| hnbgw => hnb [ label = "RUA DT (RANAP DirectTransfer (CP-ACK)" ]; |
| hnb => ue [ label = "RRC (CP-ACK)" ]; |
| |
| cn box cn [ label = "MAP MO Forward SM to IWMSC / SMSC" ]; |
| |
| cn => hnbgw [ label = "SCCP DT1 (RANAP DirectTransfer (CP-DATA (RP-ACK)" ]; |
| hnbgw => hnb [ label = "RUA DT (RANAP DirectTransfer (CP-DATA (RP-ACK)" ]; |
| hnb => ue [ label = "RRC (CP-DATA (RP-ACK)" ]; |
| |
| ue => hnb [ label = "RRC (CP-ACK)" ]; |
| hnb => hnbgw [ label = "RUA DT (RANAP DirectTransfer (CP-ACK))" ]; |
| hnbgw => cn [ label = "SCCP DT1 (RANAP DirectTransfer (CP-ACK))" ]; |
| |
| cn box hnb [ label = "RAB Release or Iu Release" ]; |
| } |