IMS Multimedia Telephony service has been standardized in 3GPP as
the replacement of the circuit switched telephony service in
cellular networks. The multimedia telephony service consists of
several service components such as voice, video and text.
‘IMS Multimedia Telephony over Cellular Systems’
provides a comprehensive overview of the service that will enable
enriched telephony for mobile users. Enriched telephony fulfils the
user’s desire to communicate in new ways, for example by
sharing pictures and video clips.
In addition to an overview of the Multimedia Telephony service,
the book focuses on the modern media processing methods, which
allows the quality of the packet switched voice and video telephony
not only to match but also possibly exceed the quality of circuit
switched telephony. Such key components as adaptive jitter
buffering and adaptation of conversational media are explained in
detail.
Key features:
* Detailed description of how Multimedia Telephony sessions are
set-up and controlled
* Analysis showing the capacity and quality of Vo IP and
Multimedia Telephony in cellular networks
* Coverage of other IMS services such as Po C specified by 3GPP
and OMA
* Description of suitable Qo S and radio bearers for Multimedia
Telephony
* 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 Vo IP, 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.
Tabella dei contenuti
Preface.
Acknowledgments.
Glossary.
1 Introduction (Shyam Chakraborty, Tomas
Frankkila).
1.1 Convergence of Networking Paradigms.
1.2 IMS and the IMS Multimedia Telephony Service.
1.3 Requirements and Challenges.
1.4 Outline of this Book.
2 The Multimedia Telephony Communication Service
(Daniel Enstr¨om, Krister Svanbro, Per Synnergren).
2.1 Benefits with IMS.
2.2 IMS Communication Services.
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 Data Networks and the Internet.
3.3 Cellular Systems.
3.4 Quality of Service.
3.5 The IP Multimedia Subsystem.
3.6 The TISPAN Next Generation Network.
3.7 Multimedia Telephony Realization.
4 Session Control (Gonzalo Camarillo, Per
Synnergren).
4.1 SIP.
4.2 Signaling Compression.
4.3 Controlling Qo S.
4.4 Establishment of Multimedia Telephony Sessions.
4.5 Modification of Multimedia Telephony Sessions.
4.6 Release of Multimedia Telephony Sessions.
4.7 Supplementary Services.
4.8 Interworking with CS Networks.
5 Media Flow (Daniel Enstr¨om, Tomas Frankkila,
Per Fr¨ojdh, Janne Peisa, Krister Svanbro).
5.1 Media Coding.
5.2 Protocols.
5.3 Media Transport Processing.
5.4 Media Control.
5.5 Header Compression.
5.6 Radio Realization.
5.7 Interworking.
5.8 Media Configurations for Multimedia Telephony.
6 Security (Rolf Blom, Yi Cheng, Vesa Lehtovirta, Karl
Norrman, G¨oran Schultz).
6.1 IMS Security Overview.
6.2 Access Domain Security.
6.3 IMS Security Mechanisms.
6.4 Outlook.
7 Performance (Tomas Frankkila, Janne Peisa, Per
Synnergren).
7.1 Application Models.
7.2 Service Performance Requirements.
7.3 Capacity.
7.4 Coverage.
7.5 Transport Characteristics.
7.6 Service Quality.
7.7 Call Setup Delays.
8 Other IMS Communication Services (Per
Synnergren).
8.1 3GPP CSICS.
8.2 OMA Po C.
8.3 OMA Instant Messaging.
8.4 Presence and List Management.
9 Summary (Per Synnergren, Janne Peisa).
Appendix Additional Simulation Results.
A.1 Delay Scheduler.
A.2 Max-CQI Scheduler.
A.3 Proportional-Fair Scheduler.
A.4 Round-Robin Scheduler.
References.
Index.
Circa l’autore
Shyam Chakraborty (Ph D) has worked at Ericsson Corporate
Research in Finland since 2005. Before this, he was the
Academy Research Fellow, Academy of Finland, at the Communications
Laboratory, Dept. of ECE, Helsinki University of Technology.
Tomas Frankkila works as a Research Scientist at Ericsson
in Sweden, and has published papers on wireless communications.
Janne Peisa (Ph D) is a Section Manager at Ericsson in
Finland, and has published many conference papers in the field of
WCDMA and 3G.
Per Synnergren (Ph D) works as a Senior Specialist for
Ericsson in Sweden. He is active in the area of R&D and
standardization for IP based services and media transported over a
wireless link (focusing on IMS based services and 3GPP wireless
access networks).
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