Handbook

Table Of Contents
ClearFill Star CDMA
1100187 Rev. 1.0
Page 14 of 152
the building. One or more external antennas can be connected to an RRH through a short
RF cable or directly on the housing. Power for the RRHs is provided over CAT-5 cables
using the power-over-Ethernet (PoE) 802.3af standard.
Figure 3 shows a schematic signal flow from BTS to RRH.
Base Station
Mix Radio Signal
To Baseband
Digitize Radio
Signal
Packetize digitized
Radio Signal
Base Station Interface
Mix Radio Signal
To Baseband
Digitize Radio
Signal
Packetize digitized
Radio Signal
Base Station Interface
Depacket digitized
Radio Signal
Digital Analog
Conversion
Mix Radio Signal
To RF
Remote Radio Head
Synchronization
Ethernet Network
Figure 3 Signal flow of ClearFill®Star
Each system element of the ClearFill®Star system is described in detail
in section 2.2.