User Manual

BTS Equipment Identification – continued
5/21/04 1X SC4812T–MC BTS Optimization/ATP 1-37
DRAFT
Six–sector BTS – Six–sector operation is only supported in OEM
multicarrier frames. For a six–sector BTS, up to two carriers can be
supported with a minmum of two PA sets: six PA modules for a 3x3
system and eight PA modules for a 4x4 system. If additional power is
required, two additional PA sets can be added for the maximum available
capacity. (Refer to Figure 1-22).
Equipment Configurations
The various components of the PA cages may be configured differently
depending upon customer requirements. Table 1-5 provides BTS
carrier/sector/BBX mapping, TX Filter requirements, and PA quantities
and configurations needed to provide the required BTS output power for
all carriers. Figure 1-16 illustrates which BBXs are used for omni and
two–sector operation. Figure 1-20, Figure 1-21, and Figure 1-22
illustrate the minimum and maximum power PA configurations for
omni, two–, and three–sector OEM and converted multicarrier frames
and for six–sector OEM multicarrier frames, respectively.
Table 1-5: BTS Carrier/Sector/BBX Mapping and ETM/PA Quantities and Power Configurations
Sec
BBXs
Assigned
ETM
TX
3x3 ETM
(Standard Power)
4x4 ETM
(High Power)
S
ec
–
tors
Car–
riers
A
ss
i
gne
d
to
Carrier
ETM
(MCM)
Qty
TX
Filter
Qty
PA Qty Required PLC
Qty
PA Qty Required PLC
Qty
1 1,2,3
Minimum power configuration:
1 PA set in slot 1 of quadrants A
through C (total of 3 CLPAs).
Minimum power configuration:
1 PA set in slot 1 of quadrants A
through D (total of 4 CLPAs).
3
2 7,8,9
1
3
g( )
Additionally required power:
achieved by adding additional PA
sets to a maximum of:
3
g( )
Additionally required power:
achieved by adding additional PA
sets to a maximum of:
4
3
3 4,5,6
1 3
sets to a maximum of:
– OEM multicarrier frames:
4 sets in quadrants A through
C (total of 12 CLPAs)
3
sets to a maximum of:
– OEM multicarrier frames:
4 sets in quadrants A through
D (total of 16 CLPAs)
4
4 10,11,12
()
– Converted multicarrier frames:
3 sets in quadrants A through
C (total of 9 CLPAs)
()
– Converted multicarrier frames:
3 sets in quadrants A through
D (total of 12 CLPAs)
NOTE
Six–sector operation is not available in converted multicarrier frames.
6
1
1,2,3,
4,5,6
2
6
Minimum power configuration:
two PA sets, one in slot 1 and one in
slot 3 of quadrants A through C
(total of 6 CLPAs) (OEM
multicarrier frames only).
3
Minimum power configuration:
two PA sets, one in slot 1 and one in
slot 3 of quadrants A through D
(total of 8 CLPAs) (OEM
multicarrier frames only).
4
6
2
7,8,9,
10,11,12
2 6
Additionally required power:
achieved by adding two additional
PA sets, one in slot 2 and one in slot
4 of quadrants A through C (total of
12 CLPAs) (OEM multicarrier
frames only).
3
Additionally required power:
achieved by adding two additional
PA sets, one in slot 2 and one in slot
4 of quadrants A through D (total of
16 CLPAs) (OEM multicarrier
frames only).
4
1