Figure 3-48
GSM 900M S4/4/4+UMTS 1800M S1/1/1
Scenario 2: A dual-mode base station working in dual-band mode on the GSM side and
supporting not more than three sectors for each band, with the configuration of GRFUs
(or DRFUs) and WRFUs
If a dual-mode base station works in dual-band mode on the GSM side and not more than six
GSM GRFUs or DRFUs are configured, the GRFUs or DRFUs are evenly positioned in the slots
in cabinet 1. By default, WRFUs are positioned in slots 1, 3, and 5 in cabinet 2.
Table 3-33
Slot assignment for GRFUs (or DRFUs) and WRFUs
Secto
r
Num
ber
G1
G2
G3
G7
G8
G9
U1
U2
U3
Cabin
et 1
Slot 0
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
-
-
-
Cabin
et 2
-
-
-
-
-
-
Slot 1
Slot 3
Slot 5
3 BTS3900 Hardware Configuration
BTS3900
Hardware Description
3-52
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Issue 04 (2011-02-15)