Power adjustment – H3C Technologies H3C WX6000 Series Access Controllers User Manual
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34-2
Figure 34-1 Dynamic channel adjustment
Power Adjustment
Traditionally, an AP has its transmitting power set to the maximum to cover an area as large as possible.
This, however, affects the operation of surrounding wireless devices. Therefore, both coverage and
capacity need to be considered.
Power adjustment is responsible for real-time radio environment monitoring and dynamic power
assignment. When an AP starts for the first time, it uses the maximum transmission power. Then, it
collects reports from detected neighbors (which are managed by the same AC) to make a power
adjustment decision.
When a new neighbor joins, each AP reduces its transmission power. As shown in
, APs 1, 2
and 3 cover an area. When AP 4 joins, the default maximum number of allowed neighbors (adjacency
factor, which is configurable) is reached. Then, the APs perform power adjustment. You can find from
the figure that they all reduce their transmission power.