Reference Manual

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Radio Congurations, RBS 2206
There are two options for placing the equipment in the cabinet:
GSM 900 on the left-hand side/GSM 1800 on the right-hand side, or the
other way round. In each case the middle position is not used.
4.7.3 SW Power Boost Congurations with CDU-G
This section does not include any additional site cell congurations, it
species which congurations support SW power boost.
A minimum of two TRXs is required in an antenna system to use SW
power boost in the antenna system. Separate TX antennas are used for
the two transmitters in a SW power boost conguration.
SPB with CDU-G Congurations without Hybrid Combiner
The following SCC supports SW power boost. The basic radio
congurations specied are used.
Table 31 CDU-G congurations without hybrid combiner
SCC Conguration TMA Number of
Antennas
Allowed Number of dTRUs
3x2 3 x G9det_2.2 M (2) (2) (2) (0..1) (0..1) (0..1)
3 x G18dt_2.2 M (2) (2) (2) (0..1) (0..1) (..1)
3 x G19dt_2.2 M (2) (2) (2) (0..1) (0..1) (0..1)
M = Mandatory
SCC 1 x 2 and 2 x 2 can be achieved as a subset of SCC 3 x 2.
SCC 1 x 2 requires one CDU-G.
SCC 2 x 2 requires two CDU-Gs.
SPB with CDU-G Congurations with Hybrid Combiner
The following SCC supports SW power boost. The basic radio
congurations specied are used. SW power boost can be used in cells
that have two dTRUs installed.
Table 32 CDU-G congurations with hybrid combiner
SCC Conguration TMA Number of
Antennas
Allowed Number of dTRUs
3x4 3 x G9deht_2.4 M (2) (2) (2) (0..2) (0..2) (0..2)
3 x G18dht_2.4 M (2) (2) (2) (0..2) (0..2) (0..2)
3 x G19dht_2.4 M (2) (2) (2) (0..2) (0..2) (0..2)
M = Mandatory
Each sector is split into two cells:
one underlaid cell consisting of the second TRX in the rst dTRU
and the rst TRX in the second dTRU. SPB is used in this cell.
one overlaid cell consisting of the two other TRXs. SPB is not
used in this cell.
EN/LZT 720 0008 R1A
2001-06-26
73 (421)
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