TC65 JAVA User's Guide
Strictly confidential / Released
5.9.3.3
Scenarios with GPRS Connection
The biggest challenges to the module performance are setting up a GPRS connection,
receiving data on javax.microedition.io interfaces and sending or receiving the data on the
RS232 API with the help of a Java application.
5.9.3.3.1
Upload
Since the TC65 supports GPRS class 12, up to four timeslots for upload data are available.
The Java application receives data over RS232 API and sends them over GPRS to a server.
Table 1: Download data rate with different number of timeslots, CS2
1
theor.
% from
timeslot
Value *
theor.
Value
9
12
75%
* net transmission rates for LLC layer
Table 2: Download data rate with different number of timeslots, CS4
1
theor.
% from
timeslot
Value *
theor.
value
13
20
65%
* net transmission rates for LLC layer
Figure 15: Scenario for testing data rates on ASC1 with GPRS data upload
TC65 JAVA User's Guide_V05
Upload data rate with x timeslots
Coding scheme 2
[kbit/s]
2
theor.
% from
time-
Value *
theor.
slots
Value
15
24
63%
Upload data rate with x timeslots
Coding scheme 4
[kbit/s]
2
theor.
% from
time-
Value *
theor.
slots
value
22
40
55%
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3
theor.
% from
time-
Value *
theor.
slots
Value
20
36
55%
3
theor.
% from
time-
Value *
theor.
slots
value
20
60
33%
TC65
Java
application
(transfer data)
s
4
theor.
% from
time-
Value *
theor.
slots
Value
16
48
33%
4
theor.
% from
time-
Value *
theor.
slots
value
13
80
16%
26.09.2005