Chapter 1 9
Understanding EDGE (with GSM)
What Is EDGE (with GSM)?
Table 1-1 EDGE (with GSM) Band Data
P-GSM
(GSM 900)
E-GSM
(GSM 900)
R-GSM
(GSM 900)
DCS 1800
(GSM 1800)
PCS 1900
(GSM 1900)
GSM 450 GSM 480 GSM 850
Uplink
(MS Transmit)
890 to 915
MHz
880 to 915
MHz
876 to 915
MHz
1710 to 1785
MHz
1850to 1910
MHz
450.4 to
457.6 MHz
478.8 to
486 MHz
824 to 849
MHz
Downlink
(BTS Transmit)
935 to 960
MHz
925 to 960
MHz
921 to 960
MHz
1805 to 1880
MHz
1930to 1990
MHz
460.4 to
467.6 MHz
488.8 to
496 MHz
869 to 894
MHz
Range
(ARFCN)
1 to 124 0 to 124
and
975 to 1023
1 to 124
and
955 to 1023
512 to 885 512 to 810 259 to 293 306 to 340 128 to 251
TX/RX Spacing
(Freq.)
45 MHz 45 MHz 45 MHz 95 MHz 80 MHz
45 MHz 45 MHz 45 MHz
TX/RX Spacing
(Time)
3 timeslots 3 timeslots 3 timeslots 3 timeslots 3 timeslots
3 timeslots 3 timeslots 3 timeslots
Modulation
Data Rate
GMSK (kbits/s):
8PSK (kbits/s):
270.833
812.499
270.833
812.499
270.833
812.499
270.833
812.499
270.833
812.499
270.833
812.499
270.833
812.499
270.833
812.499
Frame Period 4.615 ms 4.615 ms 4.615 ms 4.615 ms 4.615 ms
4.615 ms 4.615 ms 4.615 ms
Timeslot Period 576.9 µs 576.9 µs 576.9 µs 576.9 µs 576.9 µs
576.9 µs 576.9 µs 576.9 µs
Bit Period 3.692 µs 3.692 µs 3.692 µs 3.692 µs 3.692 µs
3.692 µs 3.692 µs 3.692 µs
Modulation 0.3 GMSK
3π/8 8PSK
0.3 GMSK
3π/8 8PSK
0.3 GMSK
3π/8 8PSK
0.3 GMSK
3π/8 8PSK
0.3 GMSK
3π/8 8PSK
0.3 GMSK
3π/8 8PSK
0.3 GMSK
3π/8 8PSK
0.3 GMSK
3π/8 8PSK
Channel Spacing 200 kHz 200 kHz 200 kHz 200 kHz 200 kHz
200 kHz 200 kHz 200 kHz
TDMA Mux 88888
888
MS Max Power 20 W (8 W is
max in use)
20 W 20 W 20 W 20 W
20 W 20 W 20 W
MS Min Power 13 dBm 5 dBm 0 dBm 0 dBm 0 dBm 5 dBm 5 dBm 5 dBm
MS Power
Control Steps
0 to 15 2 to 19 2 to 19 0 to 15
29,30,31
0 to 15
30, 31,
2 to 19 2 to 19 2 to 19
Voice Coder
Bit Rate
13 kbits/s 13 kbits/s,
5.6 kbits/s
13 kbits/s 13 kbits/s 13 kbits/s
13 kbits/s 13 kbits/s 13 kbits/s
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