IMS Multimedia Telephony Over Cellular Systems
VoIP Evolution in a Converged Telecommunication World

In addition to an overview of Multimedia Telephony service, this book focuses on modern media processing methods. It provides description of how Multimedia Telephony sessions are set-up and controlled. It includes coverage of other IMS services such as PoC specified by 3GPP and OMA.

This book includes key features such as: detailed description of how Multimedia Telephony sessions are set-up and controlled; analysis showing the capacity and quality of VoIP and Multimedia Telephony in cellular networks; coverage of other IMS services such as PoC specified by 3GPP and OMA; description of suitable QoS and radio bearers for Multimedia Telephony; and, explanation of the modern radio interface, especially High Speed Packet Access, which is based on concepts such as link adaptation and fast hybrid ARQ. The possibilities for the current and future standards covered in this book make it an indispensable resource for engineers, designers and researchers in VoIP, telecommunication companies and universities teaching and conducting research in telecommunications. It will also be of interest to managers needing an in-depth knowledge of the engineering and key issues of this complex technology, and students aspiring to develop a career in this area.

Preface.
Acknowledgments.
Glossary.
1 Introduction (Shyam Chakraborty, Tomas Frankkila).
1.1 ConvergenceofNetworkingParadigms.
1.2 IMS and the IMS Multimedia Telephony Service.
1.3 RequirementsandChallenges.
1.4 Outline of This Book.
2 The Multimedia Telephony Communication Service (Daniel Enstr om, Krister Svanbro, Per Synnergren).
2.1 BenefitswithIMS.
2.2 IMSCommunicationServices.
2.2.1 AnIMSApplicationExample.
2.3 Multimedia Telephony Service Scenario.
2.4 Summary of the Multimedia Telephony Communication Service.
3 Network Architecture and Service Realization (Gonzalo Camarillo, Shyam Chakraborty, Janne Peisa, Per Synnergren).
3.1 Public Switched Telephone Network and Integrated Service Digital Network
3.2 DataNetworks andthe Internet.
3.2.1 InternetProtocolArchitecture.
3.2.2 The Internet.
3.2.3 InternetProtocol.
3.3 CellularSystems.
3.3.1 Radio Access.
3.3.2 Radio Access Evolution.
3.3.3 CoreNetwork.
3.4 Quality of Service.
3.4.1 QoSAttributes.
3.5 The IP Multimedia Subsystem.
3.5.1 The Home Subscriber Server and the Subscription Location Function
3.5.2 The Call/Session Control Functions.
3.5.3 Proxy--CSCF.
3.5.4 Serving--CSCF.
3.5.5 Interrogating--CSCF.
3.5.6 TheApplicationServers.
3.5.7 The Multimedia Resource Function.
3.5.8 PSTNInterworkingFunctions.
3.5.9 IPv4/IPv6InterworkingFunctions.
3.5.10 Charging.
3.5.11 PolicyandChargingControl.
3.5.12 Home andVisitedDomains.
3.6 TheTISPANNextGenerationNetwork.
3.7 Multimedia Telephony Realization.
3.7.1 CoreNetworkandServiceLayerRealization.
3.7.2 Outline of a Radio Bearer Realization.
4 Session Control (Gonzalo Camarillo, Per Synnergren).
4.1 SIP.
4.1.1 Logical Entities.
4.1.2 IMSRegistration.
4.1.3 IMSSessionEstablishment.
4.2 SignalingCompression.
4.3 Controlling QoS.
4.3.1 GPRSSessionManagementSignaling.
4.3.2 PolicyControlSignaling.
4.4 Establishment of Multimedia Telephony Sessions.
4.4.1 Using Mobile Terminal Initiated QoS.
4.4.2 Using Network Initiated QoS.
4.5 Modification of Multimedia Telephony Sessions.
4.5.1 TheSIPINVITEMethod.
4.5.2 TheSIPUPDATEMethod.
4.6 Release of Multimedia Telephony Sessions.
4.7 Supplementary Services.
4.7.1 CommunicationDiversion.
4.7.2 Conference.
4.7.3 Message Waiting Indication.
4.7.4 OriginatingIndicationPresentation/Restriction.
4.7.5 TerminatingIndicationPresentation/Restriction.
4.7.6 CommunicationHold.
4.7.7 CommunicationBarring.
4.7.8 ExplicitCommunicationTransfer.
4.7.9 Communication Diversion: Communication Forwarding onMobile
Subscriber Not Reachable.
4.8 InterworkingwithCSNetworks.
5 Media Flow (Daniel Enstr om, Tomas Frankkila, Per Fr ojdh, Janne Peisa, Krister Svanbro).
5.1 MediaCoding.
5.1.1 Speech.
5.1.2 Video.
5.1.3 Text.
5.2 Protocols.
5.2.1 Real--TimeTransportProtocol.
5.2.2 Speech.
5.2.3 Video.
5.2.4 Text.
5.2.5 SDP.
5.3 MediaTransportProcessing.
5.3.1 Definition.
5.3.2 Jitter as a Characteristic of PS transport.
5.3.3 Speech Transport Processing -- Jitter.
5.3.4 Speech Transport Processing -- Packet Loss Concealment.
5.3.5 VideoTransportProcessing.
5.4 MediaControl.
5.4.1 End--to--EndAdaptation.
5.4.2 User InducedSessionAdaptation.
5.5 HeaderCompression.
5.6 RadioRealization.
5.6.1 UMTS.
5.6.2 EDGE.
5.6.3 OtherNetworks.
5.6.4 Example Delay Budget for HSPA.
5.7 Interworking.
5.7.1 Speech.
5.7.2 Video.
5.7.3 Text.
5.8 Media Configurations for Multimedia Telephony.
5.8.1 Speech.
5.8.2 Video.
5.8.3 Text.
5.8.4 Protocols.
5.8.5 Jitter Buffer Requirements.
5.8.6 Media andSessionAdaptation.
5.8.7 SDPExamples.
6 Security (Rolf Blom, Yi Cheng, Vesa Lehtovirta, Karl Norrman, G oran Schultz).
6.1 IMSSecurityOverview.
6.2 Access Domain Security.
6.2.1 UMTSAuthenticationandKeyAgreement.
6.2.2 Traffic Protection Offered by GSM and UMTS in the Access NW.
6.2.3 Internode Security.
6.3 IMSSecurityMechanisms.
6.3.1 Identities.
6.3.2 SourceAuthenticationofSIPSignaling.
6.3.3 AuthenticationandAuthorization.
6.3.4 IMSSignalingSecurity.
6.3.5 SecurityAspects ofPolicyEnforcement inIMS.
6.4 Outlook.
6.4.1 Fixed--MobileConvergence.
6.4.2 MediaSecurity.
6.4.3 Spam over IP Telephony.
7 Performance (Tomas Frankkila, Janne Peisa, Per Synnergren).
7.1 ApplicationModels.
7.2 ServicePerformanceRequirements.
7.2.1 VoicePerformanceRequirements.
7.2.2 SummaryofVoicePerformanceRequirements.
7.2.3 VideoPerformanceRequirements.
7.2.4 Multimedia Performance Requirements.
7.3 Capacity.
7.3.1 SimulationSettings.
7.3.2 OverviewofVoiceCapacity.
7.3.3 DownlinkVoiceCapacity.
7.3.4 UplinkVoiceCapacity.
7.3.5 Video and Multimedia Capacity.
7.4 Coverage.
7.4.1 VoiceCoverage.
7.5 TransportCharacteristics.
7.5.1 End--to--EndCharacteristics.
7.5.2 Characteristics forMediaGateways.
7.6 Service Quality.
7.6.1 Quality Assessment Method.
7.6.2 Performancewith theDelayScheduler.
7.6.3 Performancewith theMax--CQIScheduler.
7.6.4 Performance with the Proportional--Fair Scheduler.
7.6.5 Performance with the Round--Robin Scheduler.
7.6.6 Analysis ofPacketLossBursts.
7.7 CallSetupDelays.
7.7.1 GeneralAssumptions.
7.7.2 IMSandSIPAssumptions.
7.7.3 UMTSAssumptions.
7.7.4 DelayCalculation.
8 Other IMS Communication Services (Per Synnergren).
8.1 3GPPCSICS.
8.1.1 CSICSArchitecture.
8.1.2 Interoperability with Multimedia Telephony.
8.1.3 WeShare: a 3GPPCSICSServiceExample.
8.2 OMAPoC.
8.2.1 OMAPoCRelease 1Standardization.
8.2.2 OMAPoCRelease 1Architecture.
8.2.3 OMAPoCTalkBurstControl.
8.2.4 OMA PoC Session Establishment Methods.
8.2.5 OMAPoCandPDPContextEstablishment.
8.2.6 OMAPoCMediaConsiderations.
8.2.7 OMAPoCRelease 2.
8.3 OMAInstantMessaging.
8.3.1 OMAInstantMessagingArchitecture.
8.3.2 InstantMessagingModes.
8.3.3 OMAInstantMessagingMediaTypes.
8.4 Presence andListManagement.
8.4.1 PresenceSimple.
8.4.2 ListManagement.
9 Summary (Per Synnergren, Janne Peisa).
Appendix Additional Simulation Results.
A.1 DelayScheduler.
A.2 Max--CQIScheduler.
A.3 Proportional--Fair Scheduler.
A.4 Round--Robin Scheduler.
References.
Index.