Справочник Пользователя для Insys GPRS 5.0 Ethernet 11-02-01-03-10.018
Модели
11-02-01-03-10.018
GPRS General
INSYS GPRS 5.0 Ethernet
54
Dez-06
6.3
Data Rates
The GPRS Ethernet has the following characteristics:
GPRS Multislot class 12
GPRS End device class B
Support of coding scheme 1 to 4
PBCCH Support
GPRS has several classes (multislot classes) which are relevant for the transmis-
sion speed. The classes provide the maximum transmission speed for uplink and
downlink.
The table below shows the number of time slots for the classes, which can be
used for uplink, downlink, and for the device altogether.
GPRS devices support all variants up to their own multislots.
sion speed. The classes provide the maximum transmission speed for uplink and
downlink.
The table below shows the number of time slots for the classes, which can be
used for uplink, downlink, and for the device altogether.
GPRS devices support all variants up to their own multislots.
Multislot class
Downlink slots
Uplink slots
Active slots
8
4 TS
1 TS
5 TS
9
3 TS
2 TS
5 TS
10
4 TS
2 TS
5 TS
11
4 TS
3 TS
5 TS
12
4 TS
4 TS
5 TS
The maximum possible data rate therefore depends on the multislot class of the
device. The above table shows the available time slots (TS) of a device; the table
below shows the maximum data rate. The data rate, on the other hand, depends
on the used coding scheme (CS). This information is unfortunately not available
for the user. The network providers use different coding schemes according to the
reception situation.
device. The above table shows the available time slots (TS) of a device; the table
below shows the maximum data rate. The data rate, on the other hand, depends
on the used coding scheme (CS). This information is unfortunately not available
for the user. The network providers use different coding schemes according to the
reception situation.
1 TS
2 TS
3 TS
4 TS
CS1
9.05
18.1 27.15 36.2
CS2
13.4
26.8 40.2
53.6
CS3
15.6
31.2 46.8
62.4
CS4
21.4 42.8 64.2
85.6
Data rates of PC data including GPRS control data