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Chapter 1 - System Description
Introducing the Cell Extender
The Cell Extender extends the reach of the system providing coverage to
areas that cannot otherwise be reached economically due to obstacles
or range limitations. In addition, the Cell Extender can be used to serve
small remote clusters of subscribers where subscriber density or other
economic factors do not warrant a completely separate cell.
Cell Extenders that operate in mixed radio bands offers additional
benefits: Operators that typically provide services using the 2.4 GHz or
5 GHz band, can benefit from the advantage of operating locally in the
900 MHz band, being able to provide services to customers within a
radius of half a mile in non line of sight environments with heavy
foliage.
The Cell Extender operates as an Access and Subscriber Unit that are
connected back-to-back. The Subscriber Unit component provides
connectivity to the primary base station. The Access Unit component
serves the Subscriber Units located in the area covered by the Cell
Extender.
The Cell Extender is comprised of an Interface Unit and two Radio
Units.
The Interface Unit includes the interface (indoor) units of both an
Access and Subscriber Unit connected to each other via a hub module.
It provides an interface for an optional local Ethernet connection and is
powered from the mains (110/220VAC).
The radio unit of the Subscriber Unit component incorporates an
integrated flat antenna.
The radio unit of the Access Unit component incorporates an RF
connection to an antenna.
The following tables provide details on the product line, frequency band
and types of radio unit applicable for each of the currently available
models of the Cell Extender:
1-2
Cell Extender System Manual
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