Multimedia group communication : push-to-talk over cellular, presence, and list management concepts and applications

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Title:

Personal Author:

Rebeiro-Hargrave, Andrew

Publication Information:

Chichester, West Sussex : John Wiley & Sons, 2008

ISBN:

9780470058534

Subject Term:

Multimedia communications

Telephone conferencing

Internet telephony

Added Author:

Viamonte, David

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Library	Item Barcode	Call Number	Material Type	Item Category 1	Status
Searching... PSZ JB	30000010194261	TK5105.15 R42 2008	Open Access Book	Book	Searching... Unknown
Searching... PSZ JB	30000010160396	TK5105.15 R42 2008	Open Access Book	Book	Searching... Unknown

Summary

Group communication technologies enable users to form different types of mobile groups and to interact in real time with the participants of these groups.

This book provides an in-depth overview of Multimedia Group Communications in the mobile domain. It specifies multimedia group communication concepts, introduces a range of applications, and proposes an evolution path. The concepts cover the "walkie-talkie" voice over IP service, XML list management, and Presence awareness technologies. The applications section embraces session control for closed professional groups and for open consumer groups. The evolution path includes exciting developments such as 'infotainment' and communication with non-human group members.

Key Features:

Easy to understand explanation of the Push to Talk over Cellular (PoC) service, as specified by the Open Mobile Alliance (OMA) Provides technical description of XML Document Management and SIMPLE Presence services Gives examples on how to deploy group communication services over 3GPP IP Multimedia Subsystem (IMS) and between IMS domains Describes innovative use cases for multimedia group communication through integration with value-added services and through the next generation of OMA enablers

Multimedia Group Communications is the first exploration to the field of one-to-many connectivity paradigm. It provides essential information on group communication for engineers, programmers and business managers working in the mobile arena, and will also be useful to business development planners and technically aware users.

Author Notes

Andrew Rebeiro-Hargrave PhD, Nokia Networks, Finland. As Nokia Networks Multimedia Interoperability Manager, he is responsible for Interoperability testing of Nokia Push to talk, XDM and Presence enablers at OMA TestFests. He has been working with Nokia Push to talk (PoC R&D) as Product Competence Transfer Manager since 2001. In addition to technical work, he has published journal articles in the field of geographical modelling and teaches Geocomputation as a guest lecturer at the Helsinki University.

David Viamonte, Vodafone, will enhance the contents and contribute the operator perspective. In addition, to his telecommunication background, David has experience at Vodafone Global, Düsseldorf in selecting Push to talk technologies.

Foreword	p. xi
Preface	p. xiii
Acknowledgements	p. xv
Abbreviations	p. xvii
1 Group Communication Concepts	p. 1
1.1 Introduction	p. 1
1.2 Group Communication Roles	p. 1
1.2.1 Service Provider	p. 1
1.2.2 End Users	p. 2
1.3 Mobile Group Communication Use Cases	p. 4
1.3.1 One to One Session	p. 6
1.3.2 Ad-hoc Group Session	p. 8
1.3.3 Pre-arranged Group Session	p. 9
1.3.4 Open Chat Group Session	p. 10
1.3.5 Restricted Chat Group Session	p. 10
1.4 Multimedia Group Communication Implementation	p. 11
1.4.1 PoC Signaling	p. 12
1.4.2 PoC Speech	p. 16
1.4.3 XML Document Management Signalling	p. 17
1.4.4 Presence Signalling	p. 18
1.5 Summary and Conclusions	p. 22
1.6 References	p. 22
2 OMA Push to Talk Architecture	p. 23
2.1 Introduction	p. 23
2.2 Architectural Considerations	p. 25
2.3 OMA PoC Functional Architecture	p. 26
2.4 PoC Client	p. 29
2.4.1 Introduction	p. 29
2.4.2 Service Registration Functions	p. 30
2.4.3 Session-Related Functions	p. 30
2.4.4 Non-Session Related Requirements	p. 31
2.4.5 Service Configuration Requirements	p. 32
2.5 XML Document Management Client	p. 33
2.6 PoC Server	p. 33
2.6.1 Introduction	p. 33
2.6.2 Split of Functionalities between the Controlling and the Participating PoC Functions	p. 34
2.6.3 Controlling PoC Function	p. 36
2.6.4 Participating PoC Function	p. 39
2.6.5 User Plane Routing Configurations between P-PoC and C-PoC Functions	p. 41
2.6.6 Interaction with Group and Policy Management Entities	p. 44
2.6.7 Interaction with the OMA Presence Enabler	p. 44
2.7 PoC XML Document Management Server	p. 44
2.8 External Entities Providing Services to PoC System	p. 45
2.8.1 Access Network	p. 45
2.8.2 SIP/IP Core (IMS)	p. 45
2.8.3 XML Document Management Entities	p. 46
2.8.4 OMA Presence	p. 48
2.8.5 Charging Entity	p. 49
2.8.6 Device Provisioning & Management	p. 50
2.9 Description of OMA PoC Reference Points	p. 50
2.9.1 Introduction	p. 50
2.9.2 Reference Point POC-1: PoC Client - SIP/IP Core	p. 51
2.9.3 Reference Point POC-2: SIP/IP Core - PoC Server	p. 52
2.9.4 Reference Point POC-3: PoC Client - PoC Server	p. 52
2.9.5 Reference Point POC-4: PoC Server - PoC Server	p. 53
2.9.6 Reference Point POC-5: PoC Server - Shared XDMS	p. 53
2.9.7 Reference Point POC-6: SIP/IP Core - PoC XDMS	p. 53
2.9.8 Reference Point POC-7: Aggregation Proxy - PoC XDMS	p. 54
2.9.9 Reference Point POC-8: PoC Server - PoC XDMS	p. 54
2.9.10 IP-1 Reference Point: Interconnecting SIP (PoC) Networks	p. 54
2.9.11 XDM Reference Points	p. 55
2.9.12 Presence Reference Points	p. 56
2.10 Summary and Conclusions	p. 56
2.11 References	p. 57
3 The OMA XML Document Management (XDM) Enabler	p. 59
3.1 Introduction	p. 59
3.2 The OMA XDM Architecture	p. 61
3.2.1 Introduction	p. 61
3.2.2 XDM Client (XDMC)	p. 63
3.2.3 Aggregation Proxy	p. 64
3.2.4 Shared XDMS and Basic Introduction to URI Lists	p. 66
3.2.5 External Enabler-specific Entities involved in the XDM Architecture	p. 67
3.3 XDM Reference Points	p. 69
3.3.1 Introduction	p. 69
3.3.2 Reference Points XDM-1 and XDM-2 (Withdrawn)	p. 69
3.3.3 Reference Point XDM-3: XDM Client - Aggregation Proxy	p. 70
3.3.4 Reference Point XDM-4: Aggregation Proxy - Shared XDMS	p. 71
3.3.5 Reference Points towards Service-specific Enablers and XDMSs	p. 71
3.4 The XML Capability Access Protocol (XCAP)	p. 72
3.4.1 Introduction	p. 72
3.4.2 XCAP Application Usages	p. 73
3.4.3 URI Construction in XCAP	p. 74
3.4.4 Client-server Communication	p. 80
3.5 User Authentication and Authorization	p. 81
3.5.1 Introduction and User Identity	p. 81
3.5.2 User Authentication and XCAP Traffic Security	p. 82
3.5.3 User Authorization	p. 83
3.5.4 Authentication and Authorization Sample Signalling Flow	p. 83
3.6 XCAP Applications and Documents Used in OMA XDM	p. 85
3.6.1 Introduction	p. 85
3.6.2 Common XCAP Applications Supported by all XDM Servers	p. 85
3.6.3 XCAP Applications Supported by the Shared XDMS	p. 89
3.6.4 XCAP Applications Supported by the PoC XDMS	p. 91
3.6.5 XCAP Applications Supported by the Presence Enabler (Presence XDMS and RLS XDMS)	p. 99
3.6.6 Summary of XCAP Applications	p. 100
3.7 Summary and Conclusions	p. 102
3.8 References	p. 103
4 The OMA Presence Service	p. 105
4.1 Introduction	p. 105
4.2 General Presence Concepts	p. 107
4.2.1 Entities Involved in the End-to-End Presence Service	p. 107
4.2.2 Sample Signalling Flow	p. 110
4.2.3 Formatting Presence Information: the Presence Information Data Format	p. 113
4.2.4 Extending PIDF	p. 114
4.3 The OMA Presence Service	p. 120
4.3.1 Introduction and Architecture	p. 120
4.3.2 Presence Reference Points	p. 123
4.3.3 Processing Presence Information	p. 124
4.4 The Resource List Server	p. 126
4.5 XDM Presence Applications: Presence Policies and Resource Lists	p. 127
4.5.1 Presence Authorization Rules	p. 128
4.5.2 The Watcherinfo Event Package: Reactive Authorization	p. 130
4.5.3 Presence Lists	p. 130
4.6 Enhancing PoC User Experience with Presence Capabilities	p. 131
4.6.1 Presence Enabled PoC Buddy List	p. 131
4.6.2 Interworking Between the PoC and the Presence Services	p. 133
4.7 Summary, Conclusions and Some Final Comments about the Presence Service	p. 134
4.8 References	p. 136
5 Deploying Group Communication with IMS	p. 139
5.1 Introduction	p. 139
5.2 3G IP Multimedia Subsystem (IMS) Concepts	p. 139
5.3 OMA PoC over IMS	p. 143
5.3.1 Mapping of OMA and 3GPP IMS Reference Points	p. 143
5.3.2 The PoC Server as a SIP Proxy	p. 145
5.3.3 The PoC Server as a B2BUA	p. 145
5.4 IMS User Identity Management	p. 146
5.4.1 Access to PoC IMS Services Using a SIM/USIM Module	p. 147
5.4.2 Public Service Identities: PoC Group Addresses	p. 151
5.4.3 ENUM Service	p. 151
5.4.4 PoC Group Identities and IMS Public Service Identities	p. 155
5.5 IMS Connectivity	p. 156
5.5.1 Filter Criteria: Triggering the PoC Service from the S-CSCF	p. 156
5.5.2 PoC Network-Network Interface	p. 163
5.5.3 Third Party Registration and the Registration Event Package	p. 167
5.6 Charging PoC Services with IMS	p. 170
5.6.1 Offline Charging Concepts	p. 171
5.6.2 Online Charging Concepts	p. 172
5.6.3 PoC Charging Concepts	p. 173
5.7 Device Management	p. 180
5.8 Radio Access Network Parameters	p. 182
5.8.1 E(GPRS) and PoC	p. 182
5.8.2 Extended Uplink TBF Mode	p. 182
5.8.3 Delayed Downlink	p. 183
5.8.4 Priority Quality of Service (QoS)	p. 183
5.8.5 Header Compression	p. 183
5.8.6 Territory Adaptation	p. 184
5.8.7 E(GPRS) Mobility Management Improvements and PoC	p. 184
5.8.8 WCDMA and PoC	p. 185
5.8.9 Multiple Parallel Non-Real-Time Radio Access Bearers	p. 186
5.8.10 Low Bit Rate Access Bearers	p. 186
5.8.11 Radio Resources Control (RRC) Server States	p. 186
5.8.12 WCDMA Capacity Enhancements and PoC	p. 186
5.8.13 HSDPA and PoC	p. 186
5.9 Summary and Conclusions	p. 187
5.10 References	p. 187
6 Examples of Group Communication Sessions	p. 189
6.1 Introduction	p. 189
6.1.1 Signalling and media paths	p. 190
6.1.2 Request-URI	p. 191
6.1.3 PoC Session Identity	p. 191
6.1.4 RTP Session	p. 191
6.1.5 CODECs	p. 192
6.1.6 RTP and TBCP Session description parameters	p. 192
6.2 PoC Service Registration	p. 193
6.2.1 PoC Settings	p. 194
6.3 Ad-hoc Group Session	p. 196
6.3.1 Add a participant to an Ad-hoc group session	p. 200
6.3.2 Session Termination	p. 201
6.4 Pre-arranged Group Session	p. 202
6.4.1 XML PoC Group Document	p. 202
6.4.2 Pre-arranged PoC Group Session Initiation	p. 203
6.4.3 Rejoin ongoing Pre-arranged group session	p. 206
6.5 Chat Group Session	p. 208
6.5.1 Join Chat Group Session	p. 208
6.5.2 Group Participant Information	p. 210
6.6 Restricted Chat session example	p. 214
6.6.1 Group Advertisement	p. 215
6.7 Talk Burst Control Procedures without Queuing	p. 216
6.7.1 Talk Burst Request Procedure at PoC Session Initialization	p. 217
6.7.2 Talk Burst Complete	p. 218
6.7.3 Other Talk Burst Procedures	p. 219
6.8 Talk Burst Control Procedures with Queuing	p. 219
6.8.1 Talk Burst Request with pre-emptive priority	p. 219
6.9 Summary and Conclusions	p. 222
6.10 References	p. 222
7 Value Added PoC Services	p. 223
7.1 Introduction	p. 223
7.2 Value Added PoC Service Roles	p. 223
7.2.1 Mobile Virtual Network Operator	p. 223
7.2.2 Value Added Service Provider	p. 224
7.3 Integrating PoC Service with Existing Value Added Services	p. 224
7.3.1 PoC and SMS	p. 225
7.3.2 Push-to-Voice Message	p. 227
7.3.3 Push-to-IM	p. 228
7.3.4 Push-to-Mail	p. 228
7.3.5 Push-to-Blog	p. 231
7.4 Push-to-Infotainment	p. 231
7.4.1 Infotainment News Channels	p. 232
7.5 Location Based Services with PoC and Presence	p. 234
7.6 PoC PC Client Example	p. 235
7.7 PoC for Vertical Segments	p. 237
7.7.1 Mary, The Truck Driver	p. 237
7.7.2 Billy, The Bus Driver	p. 237
7.7.3 Charlie, The Bricklayer	p. 238
7.8 Summary and Conclusions	p. 238
8 OMA PoC2 Group Communication Concepts	p. 239
8.1 Group Communication Roles	p. 239
8.1.1 Service Provider	p. 239
8.1.2 Lawful Enforcement Agency	p. 240
8.1.3 P2T Network	p. 240
8.1.4 PoC End Users	p. 241
8.2 Multimedia Group Communication Use Cases	p. 243
8.2.1 Condition Based PoC Sessions	p. 244
8.2.2 Condition Re-Evaluation	p. 245
8.2.3 Crisis Handling	p. 246
8.2.4 PoC Voting	p. 247
8.3 Multimedia Group Communication Implementation	p. 248
8.3.1 The Concept of Media Burst	p. 248
8.3.2 Multimedia and Time	p. 249
8.3.3 Deferred Messaging	p. 249
8.3.4 PoC2 Signalling	p. 249
8.3.5 PoC Multimedia	p. 254
8.4 Summary and Conclusions	p. 255
8.5 References	p. 256
9 Multimedia Group Communication Evolution: PoC2, XDM2, Presence 2 and Simple IM	p. 257
9.1 Introduction	p. 257
9.2 Architectural Elements of OMA PoC2	p. 258
9.2.1 Introduction	p. 258
9.2.2 OMA PoC Box	p. 259
9.2.3 Interworking with External P2T Networks	p. 260
9.2.4 PoC Crisis Event Handling and QoE	p. 260
9.2.5 New OMA PoC2 Interfaces	p. 261
9.3 OMA XDMv2	p. 262
9.4 OMA Presence Version 2	p. 264
9.5 OMA SIMPLE Messaging	p. 264
9.6 Summary and Conclusions	p. 266
9.7 References	p. 266
Index	p. 269

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