FibeAir® RFU-C
Installation Guide
Ceragon Proprietary and Confidential
Page 9 of 93
3.
RFU-C Overview
RFU-C is a state-of-the-art Radio Frequency Unit which is fully software
configurable and supports a broad range of capacities and interfaces.
The RFU supports low to high capacities for traditional voice and Ethernet
services, as well as PDH/SDH/SONET or hybrid Ethernet and TDM interfaces.
This innovative platform uses an “on-the-fly” upgrade method, whereby
network operators only buy capacity as needed, benefiting from savings on
initial investments and OPEX.
Traffic capacity throughput and spectral efficiency are optimized with the
desired channel bandwidth. For maximum user choice flexibility, channel
bandwidths can be selected together with a range of modulations of from
QPSK to 256 QAM.
High spectral efficiency is ensured using the same bandwidth for double the
capacity, via two carriers, with vertical and horizontal polarizations. This
feature is implemented by a built-in XPIC mechanism.
RFU-C works together with several types of indoor units (IDUs). For
PDH/SDH/SONET, the RFU works with the FibeAir 1500R IDU. For Ethernet
and TDM to Ethernet migration, RFU-C works with the FibeAir IP-10G IDU. For
Ethernet only, RFU-C works with the FibeAir IP-10E and FibeAir IP-10Q IDUs.
Together, FibeAir RFU-C and FibeAir IDUs provide a powerful, reliable, and
comprehensive solution for a variety of wireless network scenarios and
requirements.
When RFU-C operates in co-channel dual polarization (CCDP) mode, using the
cross polarization interference canceller (XPIC) algorithm, two carrier signals
can be transmitted over a single channel, using vertical and horizontal
polarization. This enables double capacity in the same spectrum bandwidth.
