User's Manual

BTS Sector Configuration
68P09258A31–A
Oct 2003
1X SCt 4812T BTS Optimization/ATP
1-30
BTS Sector Configuration
There are a number of ways to configure the BTS frame. Table 1-5
outlines the basic requirements. When carrier capacity is greater than
two, a 2:1 or 4:1 cavity combiner must be used. For one or two carriers,
bandpass filters or cavity combiners may be used, depending on
sectorization and channel sequencing.
Table 1-5: BTS Sector Configuration
Number
of carriers
Number
of sectors
Channel
spacing
Filter requirements
1 3 or 6 N/A Bandpass Filter, Cavity Combiner
(2:1 or 4:1)
2 6 Non–adjacent Cavity Combiner (2:1 Only)
2 6 Adjacent Not supported in single frame
2 3 Non–adjacent Cavity Combiner (2:1 or 4:1)
2 3 Adjacent Bandpass Filter
3,4 3 Non–adjacent Cavity Combiner (2:1 or 4:1)
3,4 3 Adjacent Cavity Combiner (2:1 Only)
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