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GSM-205-423
BTS architectures and interoperability
31st Oct 01
Installation & Configuration: Horizon
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indoor
68P02902W08-B
CONTROLLED INTRODUCTION
Inst. 3–13
DCS1800 4/4/4 configuration using two cabinets
In this configuration, sector 2 is split between the cabinets. The uplink Rx and
Rx
div
signals for sector 2 are therefore connected between the BTS types to
ensure the availability of both signals in both cabinets. In the M-Cell
6
cabinet,
2-input hybrids are used for combining, each configured with a discrete external
load.
2B 1B 0B 2A 1A 0A B A
DCF HYB
EXT
DCF DCF DUP DUP DUPHYB HYB
Sector 2Sector 3 Sector 1
Horizon
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M-Cell
6
Figure 3-11 DCS1800 Mixed Horizon
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/ M-Cell
6
4/4/4 configuration using
two cabinets