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Java User’s Guide
5.12 Performance
49
s
wm_java_usersguide_v12 Page 46 of 123 2008-02-25
Confidential / Released
5.12.3.4 Upload
The ME supports up to four uplink time slots for GPRS and up to two for EGDE. The Java appli-
cation receives data over RS232 API and sends them over GPRS to a server.
Table 1: GPRS upload data rate with different number of timeslots, CS2
Upload data rate with x timeslots
Coding scheme 2
[kbit/s]
1
time-
slot
theor.
Value
1
1.
net transmission rates for LLC layer
%
from
theor.
Value
2
time-
slots
theor.
Value
1
%
from
theor.
Value
3
time-
slots
theor.
Value
1
%
from
theor.
Value
4
time-
slots
theor.
Value
1
%
from
theor.
Value
9 12 75% 15 24 63% 20 36 55% 16 48 33%
Table 2: GPRS upload data rate with different number of timeslots, CS4
Upload data rate with x timeslots
Coding scheme 4
[kbit/s]
1
time-
slot
theor.
Value
1
1.
net transmission rates for LLC layer
%
from
theor.
Value
2
time-
slots
theor.
Value
1
%
from
theor.
value
3
time-
slots
theor.
Value
1
%
from
theor.
value
4
time-
slots
theor.
Value
1
%
from
theor.
value
13 20 65% 22 40 55% 20 60 33% 13 80 16%
Table 3: EDGE upload data rate with two timeslots, CS5
Upload data rate with x timeslots
Coding scheme 5
[kbit/s]
2 timeslots theor.
Value
1
1.
net transmission rates for LLC layer
% from theor.
Value
33 44 73%
Table 4: EDGE upload data rate with two timeslots, CS9
Upload data rate with x timeslots
Coding scheme 9
[kbit/s]
2
timeslots
theor.
Value
1
1.
net transmission rates for LLC layer
% from theor.
Value
72 118 61%
- User’s Guide 1
- Java User’s Guide 10
- 1Preface 11
- 2Overview 12
- 2.2 Terms and Abbreviations 13
- 3Installation 15
- 3.3 Installation CD for TC65 17
- 3.3.1 Components 18
- 3.3.1.1 Module Exchange Suite 18
- 3.3.1.2 WTK 18
- 3.3.1.3 SDK / JDK 19
- 3.3.1.4 NetBeans IDE 5.0 19
- 3.3.1.5 NetBeans IDE 5.5.1 19
- Confidential / Released 20
- (Quick Start-up) 22
- Developer 27
- 3.6 SMTK Uninstall 27
- 3.7 Upgrades 27
- 4 Software Platform 28
- 4.2.7 GPS 30
- 4.2.8 JVM Interfaces 31
- 4.2.8.1 IP Networking 31
- 4.2.8.2 Media 31
- 4.2.8.3 Other Interfaces 31
- 4.4.1 Module States 33
- 5 Maintenance 36
- 5.2 Remote SIM Access 37
- 5.3 Power Saving 37
- 5.4 Charging 38
- 5.5 Airplane Mode 38
- 5.6 Alarm 38
- 5.7 Shutdown 39
- 5.7.1 Automatic Shutdown 39
- 5.7.2 Manual Shutdown 39
- 5.7.4 Watchdog 39
- 5.8.3 Long Responses 40
- 5.8.5 Java Commands 41
- 5.8.6 AutoExec Function 41
- 5.9 System Out 41
- 5.9.1 Serial interfaces 41
- 5.12 Performance 43
- 5.12.1 Java 43
- 5.12.2 Pin I/O 44
- 5.12.3.4 Upload 46
- 5.12.3.5 Download 47
- 5.13 System Time 49
- 6 MIDlets 50
- 6.3 Hello World MIDlet 52
- 7 File Transfer to Module 53
- 7.3 Security Issues 54
- 7.3.1 Module Exchange Suite 54
- 7.3.2 OTAP 54
- 8.1 Introduction to OTAP 55
- 8.2 OTAP Overview 55
- 8.3 OTAP Parameters 56
- 8.4 Short Message Format 57
- 8.5 Java File Format 58
- 8.6 Procedures 59
- 8.6.1 Install/Update 59
- 8.6.2 Delete 60
- 8.8 Tips and Tricks for OTAP 61
- 8.9 OTAP Tracer 62
- 8.10 Security 62
- 8.11 How To 62
- 9.1 Build Results 64
- 9.2 Compile 65
- 9.4.1 Switch on Autostart 66
- 9.4.2 Switch off Autostart 66
- 10.1.1 Setup a New Project 67
- 11 Debug Environment 72
- 11.2 Emulator 73
- 11.3 Java IDE 75
- 11.3.1.2 Templates 77
- 11.3.1.3 Examples 78
- 11.3.1.4 Compile and Run 79
- 11.3.2.1 Eclipse 3.0 81
- 11.3.2.2 Eclipse 3.1 81
- 11.3.2.3 Eclipse 3.2 81
- → Preferences 82
- → J2ME → Device Management: 84
- 11.3.2.7 Import Example 86
- 11.3.2.8 Compile and Debug 87
- → Preferences 88
- → Platform 88
- 11.3.3 Borland JBuilder X 91
- 11.3.3.1 Examples 92
- → Config 94
- 11.3.4.1 Examples 95
- 11.4 Breakpoints 95
- 12 Java Security 98
- 12.2 Execution Control 103
- 12.5.1 Create Key Store 110
- 12.5.4 Sign a MIDlet 112
- 12.6 Attention 112
- 13 Java Tutorial 113
- 13.1.1.3 Data Connections 115
- 13.1.1.4 Synchronization 117
- 13.1.3.1 ATEvents 118
- 13.1.3.2 Implementation 119
- 13.2 Programming the MIDlet 121
- 13.2.1 Threads 121
- 13.2.2 Example 121
- 14 Differences to the TC45 123
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