11.3 Processes and procedures common in originating and destination network entities

03.933GPPStage 2Technical realization of Completion of Calls to Busy Subscriber (CCBS)TS

Figure 11.3.1: Process CCBS_Monitoring_VLR

This process is responsible for monitoring the subscriber in VLR and also controls the MSC monitoring process.

Figure 11.3.2: Process CCBS_Monitoring_MSC

This process is responsible for monitoring subscriber in MSC.

Figure 11.3.3: Process CCBS_Coordinator_HLR

This process co-ordinates HLRA and HLRB monitoring interaction. Start and Stop Reporting messages are sent only once towards MSC, CCBS_Call_Report messages are directed to correct queue and Status information is distributed to both queues when needed.

Figure 11.3.4: Procedure CCBS_Set_Diagnostic_For_Release

This procedure is called to set the diagnostic field to the Release message. The diagnostic is set according to the internal CCBS Target variable.

Figure 11.3.5: Procedure CCBS_Report_Not_Idle

This procedure is called when either MO or MT setup is received or sent to the MS. It informs the VLR monitoring process that the MS is engaged with a call.

Figure 11.3.6: Procedure CCBS_Report_MS_Activity

This procedure is called when Process_Access_Request is successfully performed. It informs the VLR monitoring process and may cause transition to the Idle state.

Figure 11.3.7: Procedure CCBS_Check_Last_Call

This procedure is called when a call is ending. If the call is the last CC connection to the MS, that is reported to the VLR monitoring process.

Figure 11.3.1: Process CCBS_Monitoring_VLR (sheet 1 of 4)

Figure 11.3.1: Process CCBS_Monitoring_VLR (sheet 2 of 4)

Figure 11.3.1: Process CCBS_Monitoring_VLR (sheet 3 of 4)

Figure 11.3.1: Process CCBS_Monitoring_VLR (sheet 4 of 4)

Figure 11.3.2: Process CCBS_Monitoring_MSC

Figure 11.3.3: Process CCBS_Coordinator_HLR (sheet 1 of 6)

Figure 11.3.3: Process CCBS_Coordinator_HLR (sheet 2 of 6)

Figure 11.3.3: Process CCBS_Coordinator_HLR (sheet 3 of 6)

Figure 11.3.3: Process CCBS_Coordinator_HLR (sheet 4 of 6)

Figure 11.3.3: Process CCBS_Coordinator_HLR (sheet 5 of 6)

Figure 11.3.3: Process CCBS_Coordinator_HLR (sheet 6 of 6)

Figure 11.3.4: Procedure CCBS_Set_Diagnostic_For_Release

Figure 11.3.5: Procedure CCBS_Report_Not_Idle

Figure 11.3.6: Procedure CCBS_Report_MS_Activity

Figure 11.3.7: Procedure CCBS_Check_Last_Call