HP ProCurve 530 NA, Management And Configuration Manual

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Wireless Interface Configuration
Adaptive Tx Power Control
Adaptive Tx Power Control
This section describes how to configure the Access Point 530’s Adaptive Tx
Power Control (ATPC) feature. Several strategies for configuring Adaptive Tx
Power Control are detailed in
Appendix C, “Adaptive Tx Power Control Use Cases”
.
Feature Overview
Adaptive Tx Power Control is a group of advance radio settings that can
optimize channel coverage and reduce interference from neighboring APs by
dynamically reducing the transmit power levels of the AP 530. When it is
enabled, ATPC is applied independently to each radio. ATPC assesses and
adjusts power levels about once every second.
N o t e
■ For ATPC to adapt to neighboring APs, they all must be operating on the
same channel and all must have ATPC enabled.
Once it is enabled, ATPC is controlled by setting four parameters:
■
Adaptive Mode
■
Avoid Neighbor APs
■
RF Group Name
■
Tx Power Reduction Limit
How the ATPC feature responds to the presence of other APs depends on how
these parameters are combined.
■ Scope: Power-levels can be configured to:
• Adapt to selected APs and ignore others (by configuring the
RF Group
Name
setting), or
• To adapt to all neighboring APs (by choosing
Avoid Neighbor APs
).
■ Adaptive Mode: ATPC can either:
• Adapt to both APs and clients (by choosing
AP+Clients
mode), or
• Adapt only to other APs while providing full power to clients (by
choosing
AP
mode).
■
Power Reduction Limit: The maximum amount of signal attenuation
when adapting to neighboring APs can be specified to guarantee a
minimum power level (by setting the
Tx Power Reduction Limit
).
Details on each of these controls follow.