Siemens AC65 Benutzerhandbuch
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.
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
%
from
theor.
Value
3
time-
slots
theor.
%
from
theor.
Value
4
time-
slots
theor.
%
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
%
from
theor.
value
3
time-
slots
theor.
Value
%
from
theor.
value
4
time-
slots
theor.
Value
%
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%