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Content for TS 29.002 Word version: 18.0.0

1… 5… 7… 7.6.3 7.6.4 7.6.5 7.6.6 7.6.7 7.6.8… 7.6.11… 8… 9… 10… 11… 12… 13… 17… 18… 19… 20… 21… 22… 23… 24… 24A… 24B… 25… A…

5.1 Overload control 5.2 Compatibility 6.1 Use of SCCP 6.2 Use of TC
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5 Overload and compatibility overview p. 36

5.1 Overload control p. 36

5.1.1 Overload control for MSC (outside MAP) p. 36

5.1.2 Overload control for MAP entities p. 36

5.1.3 Congestion control for Signalling System No. 7 p. 40

5.2 Compatibility p. 40

5.2.1 General p. 40

5.2.2 Strategy for selecting the Application Context (AC) version p. 40

5.2.2.1 Proposed method p. 40

5.2.2.2 Managing the version look-up table p. 41

5.2.2.3 Optimising the method p. 42

6 Requirements concerning the use of SCCP and TC p. 42

6.1 Use of SCCP p. 42

6.1.1 SCCP Class p. 42

6.1.2 Sub-System Number (SSN) p. 42

6.1.3 SCCP addressing p. 43

6.1.3.1 Introduction p. 43

6.1.3.2 The Mobile-services Switching Centre (MSC) p. 45

6.1.3.2.1 MSC interaction during handover or relocation p. 45

6.1.3.2.2 MSC for short message routing p. 45

6.1.3.2.3 MSC for location request routing p. 45

6.1.3.2.4 MSC for LMU Control p. 45

6.1.3.3 The Home Location Register (HLR) p. 46

6.1.3.3.1 During call set-up p. 46

6.1.3.3.2 Before location updating completion p. 46

6.1.3.3.3 After location updating completion p. 46

6.1.3.3.4 VLR restoration p. 47

6.1.3.3.5 During Network-Requested PDP Context Activation p. 47

6.1.3.3.6 Before GPRS location updating completion p. 47

6.1.3.3.7 After GPRS location updating completion p. 48

6.1.3.3.8 Query for a Location Request p. 48

6.1.3.4 The Visitor Location Register (VLR) p. 48

6.1.3.4.0 General |R11| p. 48

6.1.3.4.1 Inter-VLR information retrieval p. 48

6.1.3.4.2 HLR request p. 48

6.1.3.4.3 CSS request |R11| p. 49

6.1.3.5 The Interworking MSC (IWMSC) for Short Message Service p. 49

6.1.3.6 The Equipment Identity Register (EIR) p. 49

6.1.3.7 Void

6.1.3.8 The Serving GPRS Support Node (SGSN) p. 49

6.1.3.8.0 General |R11| p. 49

6.1.3.8.1 HLR request |R11| p. 49

6.1.3.8.2 GMSC request |R11| p. 49

6.1.3.8.3 CSS request |R11| p. 49

6.1.3.9 The Gateway GPRS Support Node (GGSN) p. 49

6.1.3.10 The Gateway MSC (GMSC) for Short Message Service p. 50

6.1.3.10A Void

6.1.3.10A.1 Void

6.1.3.10A.2 Void

6.1.3.10B The Gateway Mobile Location Centre (GMLC) p. 50

6.1.3.10C The CSG Subscriber Server (CSS) |R11| p. 50

6.1.3.11 Summary table p. 50

6.2 Use of TC p. 54