3.7.1 RFU Configurations
The RFUs configured in a base station can be MRFUs, DRFUs, GRFUs, WRFUs, or LRFUs.
Table 3-26
RFU configurations
Mode
Frequency
Band
Supported
RFU
Maximum
Number of
Supported
Carriers
Number of TX
and RX
Channels
GSM only (GO) EGSM 900
MHz
DRFU/GRFU/
MRFU V1/
MRFU V2
l
2 carriers
(DRFU)
l
6 carriers
(GRFU)
l
6 carriers
(MRFU V1/
MRFU V2)
l
2T2R
(DRFU)
l
1T2R
(GRFU)
l
1T2R
(MRFU V1/
MRFU V2)
PGSM 900
MHz
DRFU/GRFU/
MRFU V1/
MRFU V2
GSM 1800 MHz DRFU/GRFU/
MRFU V1/
MRFU V2
GSM 1900 MHz GRFU/MRFU
V1
UMTS only
(UO)
850 MHz
WRFU
l
2 or 4
carriers
(WRFU)
l
4 carriers
(MRFU V1/
MRFU V2)
l
1T2R
(WRFU)
l
1T2R
(MRFU V1/
MRFU V2)
900 MHz
MRFU V1/
MRFU V2
2100 MHz
WRFU
LTE only (LO)
AWS
LRFU
l
1 carrier
(LRFU)
l
1 carrier
(MRFU V2)
l
2T2R
(LRFU)
l
1T2R
(MRFU)
2600 MHz
900 MHz
MRFU V2
1800 MHz
GSM+UMTS
(GU)
-
MRFU V1/
MRFU V2
A base station
working in
GSM+UMTS
mode supports a
maximum of six
carriers, and a
maximum of
two carriers are
supported by the
UMTS side.
1T2R
3 BTS3900 Hardware Configuration
BTS3900
Hardware Description
3-42
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Issue 04 (2011-02-15)