Brochure

Digital
Base
Station
800 MHz
Base
Station
1900
MHz
Base
Station
OBSAI to
SeRF Converter
RF to SeRF
Converter
RF
RF
RF to SeRF
Converter
SeRF
Board
Backhaul
Data
Multiplexed
SeRF over
Fiber
Multiplexed
SeRF over
mm-wave
SeRF
SeRF
SeRF
Multiband,
protocol-agnostic
Universal Radio
Head
Multiplexed
SeRF over
mm-wave
OBSAI (Future)
FlexWave
™
Universal Radio Head
Universal Radio Head for Flexible Outdoor Coverage and Capacity
Overview
With the increasing popularity and reliance on
wireless voice and data services, subscribers
expect to have coverage at anytime, anywhere.
In addition to increased wireless device usage,
wireless service providers implementing 3G
technologies, have recognized a reduction in
coverage patterns within existing coverage
footprints, opening coverage “holes” within the
network. To resolve this issue, it requires service
providers to extend coverage and/or increase
capacity within the non-coverage areas. This has
been traditionally accomplished by adding new
macro cell towers; however, with city centers
becoming more congested and local government
zoning regulations becoming more stringent,
obtaining permits for new macro cell sites is
becoming increasingly difficult. The URH offers
service providers a flexible, small form factor
solution to extend coverage and capacity where
needed, as well as support for the increasing
number of protocols and frequencies available
today and in the future.
Application
The URH uses patented digital-over-fiber
technology to distribute RF to desired locations.
The URH digitizes the entire designated RF band
and digitally transports RF over dark fiber or
millimeter wave (MMW) links and reconstructs
the signal at full bandwidth, regardless of
modulation technology at the remote location.
ADC’s digital RF transport allows RF signals to be
replicated at full dynamic range, independent of
the link length, for improved data throughput.
As service providers migrate to 3G and G4
networks, high data rate broadband services,
networks utilizing a URH backbone will be ready.
The URH offers a flexible architecture to
distribute wireless coverage and capacity. Its
versatility and small form factor allows service
providers to quickly deploy networks in areas
where zoning restrictions often hinder
installation of traditional macro cell towers
and base stations.
Centralization of base station capacity can
also be realized using URH. This allows service
providers to further benefit by reducing
capital expenditures and annual operating
costs.
System Description
The URH is a flexible and cost effective
solution for Distributed Antenna System
applications: Microcell and/or CPRI/OBSAI
Remote Radio Head applications:
 Next Generation DAS; optimized for
multiple frequency bands, scalable RF
bandwidth & transport rates
 Flexible SeRF Technology: serial RF
processing, enabling scalable frequency
bands and bandwidths
 Digital RF Transport: Digitally transport
RF from the BTS to remote locations for
distribution of RF signals
Future Enhancements Will Include:
 CPRI/OBSAI; flexibility to support BTS
interface standards
 Microcell; fully contained capacity
solution utilizing cost efficient low
bit-rate IP backhaul
 IP ready platform; smooth integration to
IP front/backhaul networks
9/07
FlexWave
™
Universal Radio Head