Noldus R. - CAMEL. Intelligent Networks for the GSM, GPRS and UMTS Network [2006, PDF, ENG] 

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CAMEL: Intelligent Networks for the GSM, GPRS and UMTS Network
Год: 2006
Автор: Rogier Noldus
Издательство: Wiley
ISBN: 0470016949
Язык: Английский
Формат: PDF
Качество: Изначально компьютерное (eBook)
Количество страниц: 428
Описание: CAMEL (Customized Application for the Mobile network Enhanced Logic) is a standard for Intelligent Networks for mobile communications networks. It is currently deployed in all regions of the world, enabling mobile network operators to offer fast and efficient services to their subscribers.
This book is an in-depth and dedicated reference on CAMEL, taking the reader through the history and development of Intelligent Networks and the essential principles of CAMEL, to the future of the technology. The author provides guidance on the various standards and specifications, and explains not only how CAMEL works but also why it works this way. Practical hints on the installation of CAMEL in the network are given throughout the book.
CAMEL: Intelligent Networks for the GSM, GPRS and UMTS Network:
* Offers a comprehensive guide to implementing CAMEL.
* Gives a complete picture, including the network entities & data flows involved.
* Describes and explains the four CAMEL phases and their aspects.
* Presents an overview of the principles of Intelligent Networks, such as Finite State Machines, Trigger Detection Points, Event Detection Points and dialogue, essential to understanding CAMEL.
* Covers charging and accounting issues, and the impact of CAMEL on the charging system in the mobile network.
* Provides practical hints over and above those mentioned in the formal specifications.
This text will be an invaluable resource for intelligent network service logic designers, service network designers, network engineers, and GSM/UMTS network designers and implementers. Advanced students on courses such as ‘Intelligent Networks’, ‘Value Added Services’, and ‘Service Networks’ will also find it an excellent guide to the topic.

Примеры страниц

Оглавление

1 Introduction to GSM Networks 1
1.1 Signalling in GSM 3
1.2 GSM Mobility 3
1.3 Mobile Station 4
1.4 Identifiers in the GSM Network 4
1.4.1 International Mobile Subscriber Identity 4
1.4.2 Mobile Station Integrated Services Digital Network Number
(MSISDN Number) 5
1.4.3 International Mobile Equipment Identifier 6
1.4.4 Mobile Station Roaming Number 6
1.5 Basic Services 6
1.5.1 Tele Services 7
1.5.2 Bearer Services 7
1.5.3 Circuit Bearer Description 7
1.6 Supplementary Services 9
2 Introduction to Intelligent Networks 11
2.1 History of Intelligent Networks 11
2.2 Principles of Intelligent Networks 12
2.3 Service Switching Function 14
2.4 Service Control Function 15
2.5 Basic Call State Model 15
2.6 Dialogue Handling 17
2.6.1 DP Arming/Disarming Rules 17
2.6.2 Control vs Monitor Relationship 18
2.7 Evolution of the CAMEL Standard 19
2.7.1 Third-generation Partnership Project 19
2.7.2 CAMEL Standards and Specifications 21
2.8 Principles of CAMEL 22
2.8.1 Location Update Procedure 22
2.8.2 CAMEL Application Part 24
2.8.3 Abstract Syntax Notation 26
2.8.4 Application Context 28
2.9 Signalling for CAMEL 28
2.9.1 Message Transfer Part 29
viii Contents
2.9.2 Signalling Connection Control Part 29
2.9.3 Transaction Capabilities 32
2.10 Dynamic Load Sharing 34
2.11 Using Signalling Point Code for Addressing in HPLMN 35
3 CAMEL Phase 1 37
3.1 Architecture for CAMEL Phase 1 37
3.1.1 Functional Entities 37
3.1.2 Information Flows 42
3.2 Feature Description 45
3.2.1 Mobile-originated Calls 46
3.2.2 Mobile-terminated Calls 49
3.2.3 Mobile-forwarded Calls 55
3.2.4 Any-time Interrogation 62
3.3 Subscription Data 65
3.3.1 Originating CSI and Terminating CSI 66
3.4 Basic Call State Model 69
3.4.1 Originating Basic Call State Model 69
3.4.2 Terminating Basic Call State Model 70
3.4.3 Detection Points 70
3.4.4 Points in Call 72
3.4.5 BCSM State Transitions 73
3.4.6 gsmSSF Process 73
3.4.7 Tssf Timer 74
3.5 CAMEL Application Part 75
3.5.1 Initial DP 75
3.5.2 Request Report BCSM 76
3.5.3 Event Report BCSM 76
3.5.4 Continue 76
3.5.5 Connect 77
3.5.6 Release Call 78
3.5.7 Activity Test 79
3.6 Service Examples 79
3.6.1 Virtual Private Network 79
3.6.2 Pre-paid Route Home 80
3.6.3 Short Number Dialling with CLI Guarantee 82
4 CAMEL Phase 2 85
4.1 Introduction 85
4.2 Architecture 87
4.2.1 Functional Entities 87
4.2.2 Information Flows 89
4.3 Feature Description 92
4.3.1 On-line Charging Control 92
4.3.2 Call Forwarding Notifications 112
4.3.3 Follow-on Calls 117
4.3.4 User Interaction 123
4.3.5 Equal Access 139
4.3.6 Enhancement of Call Control 141
Contents ix
4.3.7 Supplementary Service Invocation Notification 144
4.3.8 Short Forwarded-to Numbers 146
4.3.9 Conditional Triggering 149
4.3.10 USSD control 154
4.4 Subscription Data 160
4.4.1 Originating CSI 161
4.4.2 Terminating CSI 161
4.4.3 Supplementary Service CSI 161
4.4.4 Translation Information Flag CSI 162
4.4.5 Unstructured Supplementary Service Data CSI 162
4.4.6 USSD Generic CSI 162
4.5 Basic Call State Model 162
4.5.1 Originating Basic Call State Model 162
4.5.2 Terminating Basic Call State Model 169
4.6 CAMEL Phase 2 Relationship 173
4.6.1 CAP v2 operations 173
4.7 Interaction with GSM Supplementary Services 174
4.7.1 Line Identification 174
4.7.2 Call Forwarding 176
4.7.3 Explicit Call Transfer 177
4.7.4 Call Waiting 178
4.7.5 Call Hold 178
4.7.6 Completion of Calls to Busy Subscribers 179
4.7.7 Multi-party 179
4.7.8 Closed User Group 180
4.7.9 Call Barring 180
4.7.10 User-to-user Signalling 181
4.7.11 Call Deflection 181
4.8 Interaction with Network Services 182
4.8.1 Basic Optimal Routing 182
4.8.2 Immediate Service Termination 184
4.8.3 Operator-determined Barring 185
4.8.4 High-speed Circuit-switched Data 185
4.8.5 Multiple Subscriber Profile 186
5 CAMEL Phase 3 187
5.1 General Third-generation Networks 187
5.1.1 UMTS Network Architecture 187
5.1.2 2G Cell Planning vs 3G Cell Planning 188
5.1.3 Location Information 189
5.1.4 Split-MSC Architecture 194
5.1.5 CAMEL Phase 3 Features 196
5.2 Call Control 196
5.2.1 Subscribed Dialled Services 196
5.2.2 Serving Network-based Dialled Services 202
5.2.3 CAMEL Control of Mobile Terminated Calls in VMSC 203
5.2.4 CAMEL Service Invocation at Call Failure 206
5.2.5 Service Interaction Control 207
5.2.6 Call Gapping 211
x Contents
5.2.7 Support of Long Forwarded-to numbers 213
5.2.8 On-line Charging Enhancements 215
5.2.9 Multiple Subscriber Profile 219
5.2.10 Other Enhancements to CAP 223
5.3 CAMEL Control of GPRS 224
5.3.1 Network Architecture 224
5.3.2 Subscription Data 228
5.3.3 GPRS State Models 229
5.3.4 CAP v3 Operations for GPRS 247
5.3.5 On-line Charging for GPRS 247
5.3.6 Quality of Service 252
5.3.7 Routing Area Update 254
5.3.8 Network-initiated PDP Context Establishment 256
5.3.9 Secondary PDP Context 256
5.3.10 Impact on CDRs 257
5.3.11 Operator-determined Barring 259
5.3.12 GPRS Roaming Scenarios 259
5.3.13 Enhanced Data Rates for GSM Evolution 260
5.4 CAMEL Control of MO-SMS 260
5.4.1 Network Architecture 261
5.4.2 CAMEL Control of MO-SMS 263
5.4.3 Subscription Data 265
5.4.4 SMS State Model 265
5.4.5 Information Flows 266
5.4.6 Information Reporting and SMS Steering 267
5.4.7 Charging and Call Detail Records 269
5.4.8 Supplementary Services and Operator-determined Barring 270
5.4.9 Service Examples 271
5.4.10 International Roaming 271
5.5 Mobility Management 273
5.5.1 Description 273
5.5.2 Subscription Data 274
5.5.3 Information Flows 275
5.5.4 Service Examples 275
5.6 CAMEL Interaction with Location Services 277
5.6.1 Description 277
5.7 Active Location Retrieval 278
5.8 Subscription Data Control 280
5.8.1 Network Architecture 281
5.8.2 Any-time Subscription Interrogation 281
5.8.3 Any-time Modification 281
5.8.4 Notify Subscriber Data Change 283
5.9 Enhancement to USSD 283
5.10 Pre-paging 284
6 CAMEL Phase 4 285
6.1 General 285
6.1.1 Specifications Used for CAMEL Phase 4 285
6.1.2 Partial CAMEL Phase 4 Support 286
Contents xi
6.2 Call Control 289
6.2.1 Basic Call State Models 290
6.2.2 Call Party Handling 290
6.2.3 Network-initiated Call Establishment 305
6.2.4 Optimal Routing of Basic Mobile-to-mobile Calls 309
6.2.5 Alerting Detection Point 310
6.2.6 Mid-call Detection Point 312
6.2.7 Change of Position Detection Point 314
6.2.8 Flexible Warning Tone 316
6.2.9 Tone Injection 317
6.2.10 Enhancement to Call Forwarding Notification 318
6.2.11 Control of Video Telephony Calls 319
6.2.12 Control of SCUDIF Calls 321
6.2.13 Reporting IMEI and MS Classmark 323
6.3 GPRS Control 324
6.4 SMS Control 325
6.4.1 Mobile-originated SMS Control 325
6.4.2 Mobile-terminated SMS Control 326
6.5 Mobility Management 331
6.5.1 Subscription Data 332
6.6 Any-time Interrogation 334
6.6.1 ATI for CS Domain 334
6.6.2 ATI for PS Domain 335
6.7 Subscription Data Control 336
6.8 Mobile Number Portability 336
6.8.1 Call Routing 337
6.8.2 MNP SRF Query by gsmSCF 340
6.8.3 Non-standard MNP Solutions 341
6.9 Control of IP Multimedia Calls 342
6.9.1 Rationale of CAMEL Control of IMS 345
6.9.2 The IM-SSF 346
6.9.3 Registration 347
6.9.4 IMS Call Control 348
6.9.5 CAMEL Application Part for IMS Control 350
6.9.6 Supported Call Cases for IMS Control 353
6.9.7 Service Example 353
7 Charging and Accounting 355
7.1 Architecture 355
7.2 Call Detail Records 355
7.2.1 Overview of Call Detail Records 356
7.2.2 CAMEL-related Parameters in CDRs 358
7.2.3 Composite CDRs 359
7.3 Transfer Account Procedure Files 359
7.4 Inter-operator Accounting of CAMEL Calls 361
7.4.1 Clearing House 365
7.4.2 CAMEL Invocation Fee 366
7.5 Correlation of Call Detail Records 366
7.5.1 Call Reference Number 367
xii Contents
7.5.2 MF Calls 368
7.5.3 SCP-initiated Calls 369
7.6 Global Call Reference 369
7.7 Call Party Handling CDRs 370
8 3GPP Rel-6 and Beyond 371
8.1 General 371
8.1.1 Capability Negotiation 372
8.2 Enhancements to 3GPP Rel-6 373
8.2.1 Enhanced Dialled Service 373
8.2.2 Handover Notification Criteria 375
8.2.3 Enhancement to SCUDIF Control 376
8.2.4 Reporting User-to-user Information 376
8.2.5 Enhancement to User Interaction 378
8.3 Enhancements to 3GPP Rel-7 379
8.3.1 Trunk-originated Triggering 379
Appendix 383
A.1 Overview of CAP Operations 383
A.2 Overview of MAP Operations 384
A.3 Overview of ISUP Messages 386
A.4 Overview of CAMEL Subscription Information 386
References 389
Abbreviations 395
Index 401
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