Value-Added Services for Next Generation Networks (Informa Telecoms & Media)

176 Pages·2007·5.82 MB·English

by  Thierry Van de Velde

Value-aDDeD
SeRVICeS FOR
NeXT GeNeRaTION
NeTWORKS
AU7318_000.indd 1 11/12/07 10:02:33 AM
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Value-aDDeD
SeRVICeS FOR
NeXT GeNeRaTION
NeTWORKS
Thierry Van de Velde
New York London
AU7318_000.indd 3 11/12/07 10:02:34 AM
Auerbach Publications
Taylor & Francis Group
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© 2008 by Taylor & Francis Group, LLC
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Library of Congress Cataloging‑in‑Publication Data
Velde, Thierry Van de.
Value added services for next generation networks / Thierry Van de Velde.
p. cm. ‑‑ (Informa telecoms & media ; no. 7)
Includes bibliographical references and index.
ISBN 978‑0‑8493‑7318‑3 (alk. paper)
1. Telecommunication. 2. Customer services. 3. Value added. I. Title.
TK5101.V45 2007
621.382‑‑dc22 2007017685
Visit the Taylor & Francis Web site at
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AU7318_000.indd 4 11/12/07 10:02:35 AM
Contents
1 Basic Forces ............................................................................................1
1.1 Symbolic Devices ................................................................................3
1.2 Communication and Storage ..............................................................5
1.3 Communication and Computing .......................................................7
1.4 Means and Appropriateness ................................................................9
1.5 Contextual and Interactive Portions .................................................11
1.6 Device, Connectivity, and Service ....................................................13
1.6.1 Stage 1...................................................................................14
1.6.2 Stage 2...................................................................................14
1.6.3 Stage 3...................................................................................14
1.6.4 Evolution ...............................................................................15
1.7 Cellular, Mobile, and Wireless ..........................................................15
1.7.1 Cellular .................................................................................16
1.7.2 Mobile ...................................................................................16
1.7.3 Wireless .................................................................................17
1.7.4 Trends ...................................................................................17
1.8 Presence and Availability ..................................................................18
1.9 Immediate and Deferred Communications ......................................21
1.10 On-Demand, Triggered, and Periodic ..............................................22
1.11 Contact Lists and Tribes ...................................................................23
1.11.1 Contact lists ..........................................................................24
1.11.2 Tribe Memberships ...............................................................24
1.11.3 Evolution ...............................................................................25
1.12 Location ...........................................................................................25
2 A SWOT Analysis for Communication Service Providers ...................27
2.1 Strengths ..........................................................................................27
2.2 Weaknesses .......................................................................................28
2.3 Opportunities ...................................................................................29
2.4 Threats ..............................................................................................30
2.5 Conclusion .......................................................................................31
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vi  n  Contents
3 Review of the Standardization Work for Next Generation
Networks ..............................................................................................33
3.1 Definition of a Next Generation Network .......................................34
3.2 IETF .................................................................................................37
3.2.1 Internet Area .........................................................................38
3.2.1.1 netlmm .................................................................38
3.2.1.2 mipshop, mip4, mip6 ............................................38
3.2.1.3 Other Working Groups .........................................39
3.2.2 Real-Time Applications and Infrastructure
Area — Media Layer .............................................................39
3.2.3 Real-Time Applications and Infrastructure
Area — Session Control Layer .............................................40
3.2.3.1 mmusic.................................................................40
3.2.3.2 SIP/SIPPING .......................................................40
3.2.3.3 SIMPLE ...............................................................42
3.2.4 Security Area .........................................................................43
3.2.5 Conclusion for the IETF NGN .............................................43
3.3 3GPP ...............................................................................................44
3.3.1 UMA ...................................................................................44
3.3.2 IMS ......................................................................................46
3.3.2.1 Security .................................................................47
3.3.2.2 Mobility ................................................................47
3.3.2.3 Service Hooks .......................................................49
3.3.2.4 QoS Enforcement ..................................................51
3.3.2.5 Conclusion for the IMS .........................................54
3.4 3GPP2 ..............................................................................................55
3.5 TISPAN ...........................................................................................55
3.6 ITU-T ..............................................................................................59
3.6.1 ISDN ....................................................................................59
3.6.2 SS7 Signaling ........................................................................59
3.6.3 Intelligent Network ..............................................................60
3.6.4 Media Encoding ...................................................................60
3.6.5 NGN Signaling .....................................................................61
3.6.6 NGN Gateway Control .........................................................62
3.6.7 Transmission .........................................................................63
3.7 IEEE .................................................................................................63
3.8 OMA ................................................................................................65
3.9 Summary .........................................................................................66
4 Engineering the NGN ...........................................................................69
4.1 Advertising and Discovery ................................................................72
4.2 The Quest for Throughput and Quality ............................................75
4.3 Distribution ......................................................................................78
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Contents  n  vii
4.4 Outbound Communications ...........................................................80
4.5 Inbound Communications ...............................................................81
4.6 NGN Peering ...................................................................................83
4.7 Session Border Control .....................................................................86
4.7.1 Media Cut-Through ..............................................................87
4.7.2 NAT Traversal for Signaling .................................................87
4.7.3 Media Stream Latching .........................................................88
4.7.4 Topology Hiding ...................................................................89
4.7.5 Transcoding ..........................................................................89
4.7.6 Admission Control ...............................................................90
4.7.7 Other Functions ...................................................................90
4.8 ASP Interconnections .......................................................................91
4.9 Conclusion .......................................................................................94
5 Charging and Rating Requirements for New
Communication Means ........................................................................95
5.1 Product Catalog ................................................................................96
5.2 Account = User + Wallet ..................................................................98
5.3 Charging ..........................................................................................99
5.4 Rating .............................................................................................100
5.5 Metering .........................................................................................101
5.6 Reverse Charging ............................................................................102
5.7 Advice of Charge ............................................................................103
5.8 Redirection .....................................................................................103
5.9 Billing .............................................................................................103
5.10 Payment ..........................................................................................104
5.11 Promotions .....................................................................................104
5.12 Openness ........................................................................................105
5.13 Conclusion .....................................................................................107
6 Technical Requirements for a Modern VAS Platform ........................109
6.1 Toward a Layered Platform Architecture ........................................110
6.2 Load Balancing ...............................................................................112
6.3 Redundancy ...................................................................................113
6.4 Database Replication ......................................................................114
6.5 Memory Synchronization ...............................................................115
6.6 High Availability ............................................................................116
6.7 Scalability .......................................................................................116
6.8 Resource Allocation ........................................................................116
6.9 Service Selection .............................................................................117
6.10 Watchdog .......................................................................................117
6.11 Overload Protection ........................................................................118
6.12 Software Distribution .....................................................................119
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viii  n  Contents
6.13 Software Versioning ........................................................................120
6.14 Software Release Cycle ...................................................................120
6.15 Backward Compatibility .................................................................121
6.16 Version Activation ..........................................................................121
6.17 Licensing ........................................................................................122
6.18 Openness ........................................................................................123
6.19 Modularity .....................................................................................124
6.20 Data Model ....................................................................................124
6.21 Storage Strategy ..............................................................................125
6.22 Backup and Recovery .....................................................................126
6.23 Remote Access ................................................................................126
6.24 Hosting...........................................................................................127
6.25 Reporting .......................................................................................127
6.26 TMN FCAPS .................................................................................128
6.27 Migration Tools ..............................................................................129
6.28 Documentation ..............................................................................130
6.29 Support ...........................................................................................130
7 New Generation of Value-Added Services .........................................131
7.1 Media Pilot .....................................................................................135
7.2 Personal Contact Pages ...................................................................136
7.3 Multichannel Media .......................................................................137
7.4 Combinatory Services .....................................................................138
7.5 Contact List Overlay.......................................................................139
7.6 Voice on Web .................................................................................139
8 Future Digital Life .............................................................................141
Acronyms ....................................................................................................147
References ...................................................................................................153
Index ...........................................................................................................155
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Chapter 1
Basic Forces
Welcome to this first chapter!
In this book, let’s undertake a quest for the real “added value” of modern
(tele)communication services.
I never liked general statements such as “efficient communications increase
productivity” or “social persons communicate frequently.” Aren’t our buddies and
colleagues being flooded by the numerous calls, messages and streaming media?
What are we, our employers or advertisers willing to pay for true communication
means? Are our children going to adopt them or will they invent their own? Will
our machines start communicating in unpredictable ways?
This book is not only about technology itself; also on how it is being used and
could be used in the best possible way.
We have a long way to go to be able to conceive Value-Added Services (VAS) for
Next Generation Networks (NGN) — at least that’s my feeling at the start of this
book. A NGN is not so easy to define either.
It’s going to be a dangerous journey; we might lose ourselves in the wilderness
of networks, the ecosystem of companies, or daunting traffic predictions. We might
end up with a list of dozens of possible services with no way to prioritize or even
understand their extent.
Let’s therefore weapon ourselves for the trip!
In this chapter, we’ll take a helicopter tour over the basic forces (“dimensions”?)
which to my opinion are structuring modern communication means:
n Means and appropriateness
n Contextual and interactive portions
n Device, connectivity and service

AU7318_Book.indd 1 11/6/07 3:59:00 PM