User's Manual

Table Of Contents
U-NII Config & User Guide 5.2 Axxcelera Broadband Wireless
13.9 Topology Types
To properly deploy the AB-Access System, one must understand the
geographical physical topology. While the real world possibilities are endless, the
following three distinctive geographic topologies will be covered:
Macrocells
Microcells
Picocells
A Macrocell design should be used when you are trying to provide ubiquitous
coverage over a large area. Each cell has many Subscribers. The fundamental limit
in deploying in this manner is usually coverage zone (cell radius) due to U-NII &
ISM EIRP limits, as well as building and terrain obstructions.
A Microcell is normally used when you are trying to provide high density coverage to
a smaller geographic area. Each cell sector has many subscribers per sector. The
fundamental limit in deploying in this manner is co-channel interference due to LOS
interference paths.
A Picocell design normally covers an extremely small geographic area such as a
neighbourhood or a Multiple Dwelling Unit (MDU) complex. There are normally
March 10, 2003 Company Confidential Page 138 of 149