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HUAWEI MG323 GSM M2M Module
Hardware Guide
Antenna Interface
Issue 04 (2011-08-22)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
31
Specification
Minimum
Value
Typical
Value
Maximum
Value
Unit
(Mobile station to base transceiver
station)
EGSM-900
880
915
MHz
GSM-1800
1710
1785
MHz
GSM-1900
1850
1910
MHz
Downlink frequency range
(Base transceiver station to mobile
station)
GSM-850
869
894
MHz
EGSM-900
925
960
MHz
GSM-1800
1805
1880
MHz
GSM-1900
1930
1990
MHz
Transmission power range
GSM-850
31
33
35
dBm
EGSM-900
31
33
35
dBm
GSM-1800
28
30
32
dBm
GSM-1900
28
30
32
dBm
Number of carrier frequencies
GSM-850
124
EGSM-900
174
GSM-1800
374
GSM-1900
299
Duplex spacing
GSM-850
25
MHz
EGSM-900
45
MHz
GSM-1800
95
MHz
GSM-1900
60
MHz
Carrier spacing
200
kHz
Multiplex and duplex modes
Frequency division duplexing–time division
multiple access (FDD-TDMA)
Time slots of each TDMA frame
8
Frame duration
4.615
ms
Time slot duration
577
µs
Modulation scheme
Gaussian minimum shift keying (GMSK)
Receiver sensitivity
GSM-850
–108.5
dBm
EGSM-900
–108.5
dBm
GSM-1800
–108
dBm
GSM-1900
–108
dBm