Technical Site Documentation - myC-3/ myC-3b
Ref. SCT U38 SSC DTS 0020 – Index A - May 4, 2004
Page
2-2
CHAPTER 2 - DESCRIPTION - OPERATION
2.1 REMINDERS ABOUT THE GENERAL NETWORKS CHARACTERISTICS
Table 1 below gives the characteristics of the radio interface for the GSM 850 / 900, GSM 1800 systems :
GSM 900
GSM 1800
Frequency Band (MHz)
890 - 915
925 - 960
1710 - 1785
1805 - 1880
Number of time intervals per TDMA
frame
8
Width 2 x W simplex (MHz)
2 x 25
2 x 75
Duplex spacing (MHz)
45
95
Modulation speed (kbit/s)
271
Speech throughput (kbit/s)
13 (5,6)
Maximum data throughput (kbit/s)
12
Multiple access
Frequency and temporal
multiplexing / frequency duplexing
Cell radius (km)
0,3 to 30
0,1 to 4
SAGEM terminal power (W)
2
1
Table 1 : Radio Interface
Table 2 shows powers as a function of the network :
GSM 900
GSM 1800
Class number Maximum nominal
power (W)
Allowable
interval (W)
Maximum nominal
power (W)
Allowable
interval (W)
1
-
-
1
[0,63 ; 1,6]
2
8
[5,0 ; 12,7]
0,25
[0,16 ; 0,4]
3
5
[3,2 ; 7,9]
4
[2,5 ; 6,3]
4
2
[1,3 ; 3,2]
5
0,8
[0,5 ; 1,3]
Table 2: Terminals power class
Table 3 shows power classes :
Class 1
Class 2
Class 3
Class 4
Class 5
GSM 900
43 dBm
39 dBm
37 dBm
33 dBm
29 dBm
GSM 1800
30 dBm
24 dBm
36 dBm
-
-
