User's Manual Part 1

Frame Module Location & Identification – continued

DRAFT

SCt4812T CDMA BTS Optimization/ATP

Mar 2001

1-28

Sector Configuration

There are a number of ways to configure the BTS frame. Table 1-3

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 1-3: 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)

In Table 1-4, BBXs may be BBX2s or BBX–1Xs.

NOTE