Insys GPRS 5.0 serial 11-02-01-03-10.014 Manuale Utente

Information Regarding GPRS 

 

INSYS GPRS 5.0 serial 

 

62

 

 

Mai 06

 

 
The INSYS GPRS 5.0 serial has the following characteristics: 

¾

  GPRS Multislot class 12 

¾

  GPRS End device class B 

¾

  Support of coding scheme 1 to 4 

¾

  PBCCH Support 

 
GPRS has several classes (multislot classes) which are relevant for the transmission 
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. 

 

 

 

 

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. 

 

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