ZXC10 CBTS (V1.0)Technical Manual
30
Confidential and Proprietary Information of ZTE CORPORATION
RFS
The RFS (radio frequency subsystem) in a mobile cellular network is used
basically for air interfacing through the antenna. The RFS in a CDMA
system equipped by such technologies as power control, cell breathing,
soft handoff, GPS timing, and diversity reception is different from those in
other cellular networks.
Besides the function related with the air interface, RFS connects to BDS
through the RMM board. It also transmits CDMA signals after modulation
and receives CDMA signals after demodulation. It has other functions such
as detection, monitoring, configuration, control, and cell breathing,
blossoming and wilting.
The whole RFS subsystem consists of the antenna feeder system outside
BTS and the TRX, HPA and RFE (the parts that are involved in signal
transmission and reception) inside BTS. A typical antenna feeder system is
made up of the antenna, antenna jumper, main feeder, lightning arrester,
rack-top jumper, and other components for grounding.
Further description on the antenna feeder system is omitted in this book.
If not otherwise specified, the RFS in this book refers to its parts inside
BTS.
Содержание ZXC10 CBTS O1
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