TC65 JAVA User's Guide
Strictly confidential / Released
s
5.9.3.3Scenarios 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.
5.9.3.3.1Upload
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
Upload data rate with x timeslots
Coding scheme 2
[kbit/s]
| 1 | theor. | % from | 2 |
| theor. | % from | 3 |
|
|
| theor. |
| % from | 4 |
| theor. | % from |
|
| timeslot | Value * | theor. | time- |
| Value * | theor. | time- |
|
|
| Value * |
| theor. | time- |
| Value * | theor. |
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|
| Value | slots |
|
| Value | slots |
|
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|
| Value | slots |
|
| Value |
|
| 9 | 12 | 75% |
| 15 | 24 | 63% |
| 20 |
| 36 |
| 55% |
| 16 | 48 | 33% |
| |
* net transmission rates for LLC layer
Table 2: Download data rate with different number of timeslots, CS4
Upload data rate with x timeslots
Coding scheme 4
[kbit/s]
| 1 | theor. | % from | 2 |
| theor. | % from | 3 |
|
|
| theor. |
| % from | 4 |
| theor. | % from |
|
| timeslot | Value * | theor. | time- |
| Value * | theor. | time- |
|
|
| Value * |
| theor. | time- |
| Value * | theor. |
|
|
|
| value | slots |
|
| value | slots |
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|
|
| value | slots |
|
| value |
|
| 13 | 20 | 65% |
| 22 | 40 | 55% |
| 20 |
| 60 |
| 33% |
| 13 | 80 | 16% |
| |
* net transmission rates for LLC layer
ASC1
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Java TC65 application
(transfer data)
Figure 15: Scenario for testing data rates on ASC1 with GPRS data upload
TC65 JAVA User's Guide_V05 | Page 32 of 90 | 26.09.2005 |
