Content for TS 43.005 Word version: 18.0.0
3 Performance design objectives
3.1 General
3.2 MSCs
3.3 Performance design objectives for HLRs
3.4 Performance design objectives for VLRs
4 Transmission characteristics
4.1 General
4.2 System delay distribution
$ Change Request History
3 Performance design objectives p. 6
3.1 General p. 6
3.2 MSCs p. 6
3.2.1 Reference loads p. 6
3.2.1.1 Reference load on incoming interexchange circuits p. 6
3.2.1.2 Reference load for MS calls p. 6
3.2.1.3 Impact of supplementary services p. 7
3.2.2 Inadequately handled call attempts p. 7
3.2.3 Delay probability p. 8
3.2.3.1 User signalling acknowledgement delay p. 8
3.2.3.2 Signalling transfer delay p. 8
3.2.3.3 Through connection delay p. 8
3.2.3.4 Incoming call indication sending delay - (for terminating and internal traffic connections) p. 9
3.2.3.5 Connection release delay p. 10
3.2.3.6 Call clearing delay p. 10
3.2.3.7 Timing for start of charging (circuit switched calls) p. 10
3.2.3.8 Call set-up delay p. 10
3.2.3.9 Handover delay p. 10
3.2.3.10 Off-air-call-set-up (OACSU) delay p. 11
3.2.3.11 Discontinuous reception mode delay p. 11
3.2.4 Call processing performance objectives p. 11
3.2.4.1 Premature release p. 11
3.2.4.2 Release failure p. 11
3.2.4.3 Incorrect charging or accounting p. 11
3.2.4.4 Misrouting p. 11
3.2.4.5 No tone p. 11
3.2.4.6 Other failures p. 12
3.2.4.7 Transmission performance p. 12
3.2.4.8 Slip rate p. 12
3.2.5 MSC performance during overload conditions p. 12
3.3 Performance design objectives for HLRs p. 12
3.3.1 Reference loads p. 12
3.3.2 Objectives p. 12
3.4 Performance design objectives for VLRs p. 12
3.4.1 Reference loads p. 12
3.4.2 Objectives p. 12
4 Transmission characteristics p. 13
4.1 General p. 13
4.1.1 BS-MSC path p. 13
4.1.2 MSC p. 13
4.2 System delay distribution p. 13
4.2.1 Speech channel delay p. 13
4.2.2 Data channel delay p. 15
$ Change Request History p. 20
