User Guide

AB-Access Config & User Guide 5.5 Axxcelera Broadband Wireless
July 27, 2004 Company Confidential Page 35 of 129
5.10.1 Type 1 Interference
Downlink to Subscriber Unit
interfered with by another Access
Point Downlink. All Access Points
power control for full service at the
sector edge (in cusp). The worst case
scenario is when the SU (Cell 1) has
the interfering AP at Boresight (Cell 2)
and is towards the edge of its sector,
i.e. min CNR from its AP.
5.10.2 Type 2 Interference
Downlink to Subscriber Unit
interfered with by a Subscriber Unit
Uplink in another cell. Worst case
scenario is interfering SU at range
(max Tx power), and victim SU at
range (lowest CNR) and SUs facing
each other, e.g. Cells 1 and 3. The
interference is reduced if SUs using
the same frequencies do not face
each other, e.g., Cells 1 and 2.
Cell 1
Cell 2
Interfering AP
Interfer
ence
h
Cell 1
Cell 2
Weak
Interference
path
Cell 3
Strong
Interference
path