book

The 3G IP Multimedia Subsystem (IMS): Merging the Internet and the Cellular Worlds, Third Edition

Name: The 3G IP Multimedia Subsystem (IMS): Merging the Internet and the Cellular Worlds, Third Edition
ISBN: 9780470516621

by Miguel A. García-Martín, Gonzalo Camarillo

November 2008

Intermediate to advanced

652 pages

19h 5m

English

Wiley

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Cover
Title page
Copyright Page
Dedication
Foreword by Stephen Hayes
Foreword by Allison Mankin and Jon Peterson
About the Authors
Preface to the First Edition
Preface to the Second Edition
Preface to the Third Edition

Acknowledgements
Part I Introduction to the IMS
Chapter 1 IMS Vision: Where Do We Want to Go?
1.1 The Internet1.2 The Cellular World1.3 Why do we need the IMS?1.4 Relation between IMS and non-IMS Services
Chapter 2 The History of the IMS Standardization
2.1 Relations between IMS-related Standardization Bodies2.2 Internet Engineering Task Force2.3 Third Generation Partnership Project2.4 Third Generation Partnership Project 22.5 IETF-3GPP/3GPP2 Collaboration2.6 Open Mobile Alliance
Chapter 3 General Principles of the IMS Architecture
3.1 From Circuit-switched to Packet-switched3.2 IMS Requirements3.3 Overview of Protocols used in the IMS3.4 Overview of IMS Architecture3.5 Identification in the IMS3.6 SIM, USIM, and ISIM in 3GPP3.7 Next Generation Networks (NGN)
Part II The Signaling Plane in the IMS
Chapter 4 Session Control on the Internet
4.1 SIP Functionality4.2 SIP Entities4.3 Message Format4.4 The Start Line in SIP Responses: the Status Line4.5 The Start Line in SIP Requests: the Request Line4.6 Header Fields4.7 Message Body4.8 SIP Transactions4.9 Message Flow for Session Establishment4.10 SIP Dialogs4.11 Extending SIP4.12 Caller Preferences and User Agent Capabilities4.13 Reliability of Provisional Responses4.14 Preconditions4.15 Event Notification4.16 Signaling Compression4.17 Content Indirection4.18 The REFER Method4.19 Globally Routable User Agent URIs (GRUU)4.20 NAT Traversal
Chapter 5 Session Control in the IMS
5.1 Prerequisites for Operation in the IMS5.2 IPv4 and IPv6 in the IMS5.3 IP Connectivity Access Network5.4 P-CSCF Discovery5.5 IMS-level Registration5.6 Subscription to the reg Event State5.7 Basic Session Setup5.8 Application Servers: Providing Services to Users5.9 Changes due to Next Generation Networks (NGN)5.10 Interworking5.11 Combinational Services5.12 Basic Sessions Not Requiring Resource Reservation5.13 Globally Routable User Agent URIs (GRUU) in IMS5.14 IMS Communication Service Identifier (ICSI)5.15 IMS Application Reference Identifier (IARI)5.16 NAT Traversal in the IMS
Chapter 6 AAA on the Internet
6.1 Authentication, Authorization, and Accounting6.2 AAA Framework on the Internet6.3 The Diameter Protocol
Chapter 7 AAA in the IMS
7.1 Authentication and Authorization in the IMS7.2 The Cx and Dx Interfaces7.3 The Sh Interface7.4 Accounting
Chapter 8 Policy and Charging Control in the IMS
8.1 PCC Architecture8.2 Charging Architecture8.3 Offline Charging Architecture8.4 Online Charging Architecture
Chapter 9 Quality of Service on the Internet
9.1 Integrated Services9.2 Differentiated Services
Chapter 10 Quality of Service in the IMS
10.1 Policy Control and QoS10.2 Instructions to Perform Resource Reservations10.3 Reservations by the Terminals10.4 QoS in the Network
Chapter 11 Security on the Internet
11.1 HTTP Digest Access Authentication11.2 Certificates11.3 TLS11.4 S/MIME11.5 Authenticated Identity Body11.6 IPsec11.7 Privacy11.8 Encrypting Media Streams
Chapter 12 Security in the IMS
12.1 Access Security12.2 Network Security
Chapter 13 Emergency Calls on the Internet
13.1 Introduction13.2 Location Acquisition13.3 Identifying Emergency Calls13.4 Locating the Closest PSAP13.5 Issuing the Emergency Call
Chapter 14 Emergency Calls in the IMS
14.1 Architecture for Supporting Emergency Calls in IMS14.2 Establishing an Emergency Call in IMS14.3 IMS Registration for Emergency Calls14.4 Call Back from the PSAP to a User14.5 Anonymous Calls14.6 Emergency Calls in Fixed Broadband Accesses
Part III The Media Plane in the IMS
Chapter 15 Media Encoding
15.1 Speech Encoding15.2 Video Encoding15.3 Text Encoding15.4 Mandatory Codecs in the IMS
Chapter 16 Media Transport
16.1 Reliable Media Transport16.2 Unreliable Media Transport16.3 Media Transport in the IMS
Part IV Building Services with the IMS
Chapter 17 Service Configuration on the Internet
17.1 The XML Configuration Access Protocol (XCAP)17.2 An Overview of XML17.3 HTTP URIs that Identify XCAP Resources17.4 XCAP Operations17.5 Entity Tags and Conditional Operations17.6 Subscriptions to Changes in XML Documents17.7 XML Patch Operations
Chapter 18 Service Configuration in the IMS
18.1 XDM architecture18.2 Downloading an XML Document, Attribute, or Element18.3 Directory Retrieval18.4 Data Search with XDM18.5 Subscribing to Changes in XML Documents
Chapter 19 The Presence Service on the Internet
19.1 Overview of the Presence Service19.2 The Presence Life Cycle19.3 Presence Subscriptions and Notifications19.4 Presence Publication19.5 Presence Information Data Format (PIDF)19.6 The Presence Data Model for SIP19.7 Mapping the SIP Presence Data Model to the PIDF19.8 Rich PIDF19.9 CIPID19.10 Timed Presence Extension to the PIDF19.11 Presence Capabilities19.12 Geographical Location in Presence19.13 Watcher Information19.14 Watcher Authorization: Presence Authorization Rules19.15 URI-list Services and Resource Lists19.16 Presence Optimizations
Chapter 20 The Presence Service in the IMS
20.1 The Foundation of Services20.2 Presence Architecture in the IMS20.3 Presence Publication20.4 Watcher Subscription20.5 Watcher Information and Authorization of Watchers20.6 Presence Optimizations20.7 OMA Extensions to PIDF
Chapter 21 Instant Messaging on the Internet
21.1 The im URI21.2 Modes of Instant Messages21.3 Pager-mode Instant Messaging21.4 Session-based Instant Messaging21.5 The “isComposing” Indication21.6 Messaging Multiple Parties21.7 File Transfer
Chapter 22 The Instant Messaging Service in the IMS
22.1 Pager-mode Instant Messaging in the IMS22.2 Pager-mode Instant Messaging to Multiple Recipients22.3 Session-based Instant Messaging in the IMS22.4 File Transfer
Chapter 23 Conferencing on the Internet
23.1 Conferencing Standardization at the IETF23.2 The SIPPING Conferencing Framework23.3 The XCON Conferencing Framework23.4 The Binary Floor Control Protocol (BFCP)
Chapter 24 Conferencing in the IMS
24.1 The IMS Conferencing Service24.2 Relation with the Work in TISPAN and OMA
Chapter 25 Push-to-talk over Cellular
25.1 PoC Standardization25.2 IETF Work Relevant to PoC25.3 Architecture25.4 Registration25.5 PoC Server Roles25.6 PoC Session Types25.7 Adding Users to a PoC Session25.8 Group Advertisements25.9 Session Establishment Types25.10 Answer Modes25.11 Right-to-send-media Indication Types25.12 Participant Information25.13 Barring and Instant Personal Alerts25.14 Full Duplex Call Follow On25.15 The User Plane25.16 Simultaneous PoC Sessions25.17 Charging in PoC
Chapter 26 Multimedia Telephony Services: PSTN/ISDN Simulation Services
26.1 Providing Audible Announcements26.2 Communication Diversion (CDIV) and Communication Forwarding26.3 Communication Diversion Notification (CDIVN)26.4 Conference (CONF)26.5 Message Waiting Indication (MWI)26.6 Originating Identification Presentation/Restriction (OIP, OIR)26.7 Terminating Identification Presentation/Restriction (TIP, TIR)26.8 Anonymous Communication Rejection (ACR) and Communication Barring (CB)26.9 Advice of Charge (AoC)26.10 Completion of Communications to Busy Subscriber (CCBS) and Completion of Communications on No Reply (CCNR)26.11 Malicious Communication Identification (MCID)26.12 Communication Hold (HOLD)26.13 Explicit Communication Transfer (ECT)26.14 User Settings in PSTN/ISDN Simulation Services
Chapter 27 Voice Call Continuity
27.1 Overview of Voice Call Continuity27.2 VCC Architecture27.3 Registration27.4 Call Origination and Anchoring27.5 Call Termination and Anchoring27.6 Domain Transfer
Appendix A: List of IMS-related Specifications
A.1 IntroductionA.2 3GPP SpecificationsA.3 ETSI NGN SpecificationsA.4 OMA Specifications
References
Index

Content preview from The 3G IP Multimedia Subsystem (IMS): Merging the Internet and the Cellular Worlds, Third Edition

Chapter 5

Session Control in the IMS

We saw in Section 4.1 how SIP is used in a public Internet environment. We have also explored the core SIP functionality and a few important extensions that SIP User Agents may support. Each implementation of SIP is free to implement the options or SIP extensions that the particular application requires.

3GPP is one of those particular applications of SIP where SIP is used in a wireless environment. In the case of 3GPP, SIP is used over an underlying packet network that defines a number of constraints. The result of the evaluation of SIP in wireless environments led to the definition of a set of requirements that accommodates SIP in 3GPP networks. The implementation of solutions to these wireless requirements led 3GPP to mandate the use of a number of options and extensions to SIP and other protocols. We can consider 3GPP’s function as creating a profile of utilization of SIP and other protocols in the IP Multimedia Subsystem. The 3GPP SIP profile utilization for IMS is specified in 3GPP TS 24.229 [37]. We call it a profile because there are no differences with respect to the usage of SIP on the public Internet. However, 3GPP has mandated the implementation of a number of extensions and options in both the IMS network nodes and IMS terminals. This section focuses on describing how SIP is used in the IMS as well as highlighting differences in the utilization of SIP with respect to the public Internet.

When 3GPP began the work on session control ...

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The 3G IP Multimedia Subsystem (IMS): Merging the Internet and the Cellular Worlds, Third Edition

by Miguel A. García-Martín, Gonzalo Camarillo

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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