GPRS and 3G wireless applications:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
New York [u.a.]
Wiley
2001
|
| Schriftenreihe: | Professional developer's guide series
|
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | XXV, 317 S. Ill., graph. Darst. CD-ROM (12 cm) |
| ISBN: | 0471414050 |
Internformat
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| 245 | 1 | 0 | |a GPRS and 3G wireless applications |c Christoffer Andersson |
| 264 | 1 | |a New York [u.a.] |b Wiley |c 2001 | |
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| 650 | 4 | |a Wireless communication systems | |
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Datensatz im Suchindex
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Titel: GPRS and 3G wireless applications
Autor: Andersson, Christoffer
Jahr: 2001
Contents
Acknowledgments xiii
Introduction xv
Part One The Mobile Networks 1
Chapter 1 Basic Concepts 3
How a Mobile Phone System Works 3
Architecture 4
Concepts and Terminology 8
Separating Users from Each Other 9
Separating Sending and Receiving Traffic 9
Defining Concepts 10
Summary 11
Chapter 2 The Mobile Evolution 13
Mobile Phone History 13
Mobile Systems Now and in the Future 17
GSM Evolution 18
TDMA (IS-136) Evolution 20
cdmaOne Evolution 21
PDC Evolution 22
WAP, Bluetooth, and Other Related Evolutions 23
vii
viii CONTENTS
The Mobile Internet
Mobitex and Palm.net
I-Mode
What Makes the Mobile Internet Take Off?
Summary
Chapter 3 GPRS—Wireless Packet Data
The Need for Packet Data
Key Features of GPES and Packet Data Networks
The Always Online Feature
An Upgrade to Existing Networks
An Integral Part of Future 3G Systems
GPRS Network Architecture
GPRS Handsets
The R-Reference Point Interface
Accessing Lower Layers with AT Commands
Attaching to the Network
Attaching to the Network and Getting an IP Address
Mobility Management
Communicating with a GPRS User
Speed, Capacity, and Other End-User Aspects
Charging for Packet Data
The Future of GPRS
Summary
Chapter 4 5G Wireless Systems
Chapter 5 Bluetooth-Cutting the Cord!
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53
53
What Is 3G?
Key Features of All 3G Systems
Higher Bit Rates
QoS
Bit Rates Dependent on Distance
Layered Open Architecture
New Spectrum?
System Description: EDGE
System Description: 3G CDMA Systems
Three Modes of CDMA for 3G
Features That Are Common to All 3G CDMA Systems
WCDMA-Specific Features
Features That Are Specific to cdma2000
Which 3G System Is the Best?
Future Applications and Enhancing Applications for 3G?
Summary
Background and History
Main Features
_55
55
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57
58
58
59
60
61
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65
67
70
75
78
79
80
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83
CONTENTS
IX
Bluetooth Air Interface 84
Frequency-Hopping Radio 84
Link Types 87
The Protocol Stack 91
Bluetooth Networking and Profiles 94
The Applications and User Interfaces 101
Headset MMI Example 101
Bluetooth-Specific Development Considerations 102
Device Agnosticism 102
Ease of Use 103
Security and Comfort 103
Summary 104
Part TWo Optimizing the Transmission 105
Chapter 6 llnwiring the Internet 107
Background and History 108
The Internet Protocols in Wireless 109
The OSI Model for the Internet 109
Internet Protocol (IP) 111
Transmission Control Protocol (TCP) 112
Hypertext Transfer Protocol (HTTP) 119
File Transfer Protocol (FTP) 123
Solutions 123
Changing the Protocols 124
Summary 124
Chapter 7 The Wireless Application Protocol (WAP) 125
Background and History 125
Overview and Architecture 127
The Client and User Agents 129
The WAP Gateway 130
Content Server 132
The Protocol Stack 133
Wireless Application Environment (WAE) 134
Wireless Session Protocol (WSP) 139
Wireless Transaction Protocol (WTP) 141
Wireless Transport Layer Security (WTLS) 143
Wireless Datagram Protocol (WDP) 145
WAP Now and in the Future 146
What's New in WAP 1.2.1 (June 2000)? 146
WAP Next Generation (WAP-NG) 147
Why WAP in 3G? 147
Summary 149
What Affects Applications and Why? 151
CONTENTS
Chapter 8 Adapting for Wireless Challenges
Handling Interruptions
Dealing with Latency
The Effects of Packet Loss
Improving Robustness
Improving Efficiency
Overhead
Excessive Data Transmission
Using Compression
Using Caching
Buffer Issues
Improving Perceived Performance
, Keep the User in Control
Keep the User Informed
Middleware Solutions
Summary
151
153
158
161
163
164
165
167
168
169
170
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172
173
174
176
179
Part Three Applications and Their Environments
Chapter 9 Application Architectures 181
Architectures Now and in the Future
Today's Applications Architectures
Introducing the Service Network
Architecture Overview
Service Enablers
Personal Service Environment
Application Servers
Service Management
Summary
Chapter 10 Mobile Internet Devices
Devices Now and in the Future
Building the Ultimate Device
Business Aspects
The Man-Machine Interface
Communication
Hardware Advances
Input Mechanisms
Integrated versus Divided Concepts
Designing for Generic Devices
Summary
ChapteM1 Operating Systems and Application Environments
What Defines a Good Application Environment?
Browser-Based versus Terminal-Based Applications
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CONTENTS xi
The Fight of the Operating Systems 226
Palm OS 226
Windows CE 228
EPOC 230
Pocket Linux 232
Who Needs an Operating System? 233
Java for Mobile Devices 233
Terminal Capabilities and MExE 237
Summary 238
Chapter 12 Security 241
How Secure Does It Have to Be? 241
Securing the Transmission 243
Authentication 243
Encryption 243
Protecting the Message Integrity 244
GSM/GPRS/3G Network Security 245
Enabling Security in Higher Layers 246
Algorithm Decision 246
Security Protocols and Their Wireless Usage 246
Security Issues 247
WAP Security Issues 248
Bluetooth Security Issues 249
Redundant Security 250
Making Decisions and Security Perspectives 250
Summary 252
Chapter 13 Location-Based Services 253
Overview 253
Positioning Methods 255
Terminal-Based Positioning: GPS and A-GPS 255
Enhanced Observed Time Difference (E-OTD) 258
Network-Based Positioning: UL-TOA 259
CGI-TA 260
Which Solutions Will We Use, and What Are the Consequences? 260
Example of Positioning API Usage 263
Summary 266
Chapter 14 Testing the Wireless Applications 267
Why and How to Test 267
Emulators and Real Networks and Devices 269
Real versus Emulated GUIs (Devices) 270
Real versus Emulated Mobile Networks 270
GUI and Usability Testing 271
Network Emulator Testing 274
Wireless Emulators 274
Test Cases and Wireless Scenarios 276
xii CONTENTS
Server-Side Testing
Application Server Issues
Service Network Intercommunication
End-to-End (Proof-of-Concept) Testing
Getting Help
Summary
Chapter 15 Getting It All Together 281
Business Aspects 281
The Mobile Internet Industry 282
,_— To Charge or Not to Charge? 284
Be Fast and Be Loud 285
Do Not Get into Fights That You Cannot Win 286
Get the Right Partners 287
Simple Is Often Good 289
Make Things that Appeal to People 290
Distribution and Maintenance 290
Know Your Network, the Operator, and the Consumer 292
Leverage the Unique Possibilities 293
Personalization 293
Always Online 295
Mobility . ¦ 296
Summary 297
Acronym List 299
Index 303
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280 |
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| spelling | Andersson, Christoffer Verfasser aut GPRS and 3G wireless applications Christoffer Andersson New York [u.a.] Wiley 2001 XXV, 317 S. Ill., graph. Darst. CD-ROM (12 cm) txt rdacontent n rdamedia nc rdacarrier Professional developer's guide series Mobile communication systems Wireless communication systems Mobile Telekommunikation (DE-588)4341131-9 gnd rswk-swf GPRS (DE-588)4620458-1 gnd rswk-swf Mobile Telekommunikation (DE-588)4341131-9 s GPRS (DE-588)4620458-1 s DE-604 HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=009592985&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
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| title | GPRS and 3G wireless applications |
| title_auth | GPRS and 3G wireless applications |
| title_exact_search | GPRS and 3G wireless applications |
| title_full | GPRS and 3G wireless applications Christoffer Andersson |
| title_fullStr | GPRS and 3G wireless applications Christoffer Andersson |
| title_full_unstemmed | GPRS and 3G wireless applications Christoffer Andersson |
| title_short | GPRS and 3G wireless applications |
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