User's Manual

14
2.2.3 Uplink Block Diagram
The uplink path of CoverCell 25K does not use the input detect function. The gain of a donor
antenna is high enough. Then, the last output power level is not necessarily high. Consequently,
PAM is not necessary. The ALC function is monitoring the last output power and maintaining the
output power to increase stability of the system.
[Figure 5] COVERCELL 25K RF Repeater Uplink Block Diagram
COVERCELL 25K RF Repeater
Uplink Block Diagram
Cellula
r
Donor ANT
Mixer + Local
Output Det
Output Det
LNA
LNA
PCS
Cavity
Filter
Cavity
Filter
Mixer + Local
Coverage ANT