System Engineering for IMS Networks

The IP Multimedia Subsystem (IMS) is the foundation architecture for the next generation of mobile phones, wireless-enabled PDAs, PCs, and so on, delivering multimedia content (audio, video, text, etc.) over all types of networks. It is essential for network engineers/administrators and telecommunications engineers to not only understand IMS architecture but to also be able to apply it at every stage of the network design process. This book will contain pragmatic information on how to engineer IMS networks as well as an applications oriented approach, for engineering and networking professionals who are responsible for making IMS "play" in the real world. * Describes the convergence of wireless IMS (IP Multimedia Subsystem) with other networks, including wireline and cable * Discusses building interfaces for end users and IMS applications servers * Explores network management issues with IMS

List of Figures	p. ix
List of Tables	p. xiii
Preface	p. xv
Acknowledgements	p. xxi
Introduction to IMS	p. 1
What is IMS?	p. 1
A First Look at IMS	p. 7
The IMS Architecture	p. 9
Chapter Summary	p. 23
Basics of Wireless Networks	p. 25
The Centralized Model of Wireless Telecom Networks	p. 25
The RAN and the Core Network	p. 26
Concept of the Control Plane and User Plane	p. 27
Functions of the Core Network	p. 28
Subscriber Identity and Management	p. 29
Mobility and Roaming	p. 29
Charging and Billing	p. 30
Service Delivery	p. 31
Network Management	p. 32
Chapter Summary	p. 33
Basics of IP Networks	p. 35
IP from an IMS perspective	p. 35
Addressing	p. 36
IPv4/IPv6	p. 38
Routing	p. 40
Trusted Networks	p. 40
NAT/Firewall Traversal -- Session Border Control	p. 41
Chapter Summary	p. 43
The IMS-related Protocols	p. 45
Transport Protocols	p. 46
Session Protocols	p. 46
AAA Protocol -- Diameter	p. 59
Media Protocols	p. 67
IP Access and Addressing	p. 75
Security	p. 84
QoS	p. 89
Application	p. 91
Chapter Summary	p. 92
Principles of Operation	p. 95
Subscriber Identities and Addressing	p. 95
Subscription in IMS	p. 100
Authentication and Authorization	p. 103
Session Control	p. 112
Charging and Billing	p. 116
Policy and QoS	p. 120
The Service Plane	p. 124
Service Orchestration and the SCIM	p. 129
The Media Plane	p. 134
Security	p. 136
Chapter Summary	p. 139
Putting it All Together	p. 141
UE IP Connectivity	p. 141
UE Registration and Deregistration	p. 144
Session Scenarios	p. 148
Chapter Summary	p. 165
Services Delivered by IMS	p. 167
Converged Services	p. 167
Next-Gen Consumer Services	p. 170
Enterprise Services	p. 199
Blended Services	p. 206
Emergency Services	p. 216
Chapter Summary	p. 218
The Promise of Convergence	p. 219
Converging IMS with Other Networks	p. 219
Service Convergence	p. 232
IMS and Web 2.0	p. 241
Chapter Summary	p. 243
Implementing IMS Functional Elements	p. 245
The Network Itself	p. 245
Implementing UE Applications/IMS Clients	p. 247
Implementing Core Network Elements	p. 250
Implementing Application Servers	p. 265
Managing the IMS Network	p. 268
Chapter Summary	p. 273
Epilogue: Future Directions for IMS	p. 275
Innovation Beyond Standards	p. 276
The Promise and the Wait	p. 276
Performance of IMS Networks	p. 279
References and Further Reading	p. 291
Index	p. 311
Table of Contents provided by Ingram. All Rights Reserved.

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