Alvarion BreezeACCESS Wi2, Системное руководство

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110 BreezeMAX Wi² and BreezeACCESS Wi² System Manual
Chapter 6 - Wireless Configuration
6.3.1.7.6 Spectralink VIEW
(Not available in Monitor mode)
Provides support for Spectralink phones using Spectralink's Voice Interoperability for Enterprise
Wireless (VIEW) extensions.
6.3.1.7.7 Maximum Range (Ack Timeout)
Fine tunes internal timeout settings to account for the distance that a link spans. For normal
operation, timeout is optimized for links of less than 1 km.
6.3.1.7.8 Transmit Power Control
(Not available in Monitor mode)
Use this parameter to set the transmission power of the wireless radio. The maximum supported
power setting depends on the radio that is installed. The actual Maximum output power is shown at
the bottom of this group box.
Select the Maximum available output power checkbox to specify that the AP use maximum
available power. Alternatively, you can enter transmission power in dBm (using a range between 0
and 20, even though not all radios can support up to 20 dBm), or as a percentage of the maximum
available power (using a range between 0 and 100).
Actual transmit power used may be less than the specified value. The AP determines the power to be
used based on the settings you make for regulatory domain, wireless mode, and operating frequency.
Select Automatic power control to enable the AP to determine the optimal power setting within the
defined limits. Also select the Interval at which power is adjusted. (Interval is relevant only if
Automatic power control is selected.).
This feature works best when the entire network uses only Alvarion Ltd. APs, because third-party
products will not adjust output power.
If co-channel interference is discovered, all neighboring APs will shrink their cell size to minimize
the interference. The first step is to adjust the transmit power. If this fails, the next step is to increase
NOTE
This is a global setting that applies to all wireless connection made with the radio. Therefore,
adjusting this setting may lower the performance for users with marginal signal strength or when
interference is present. (Essentially, it means that if a frame needs to be retransmitted it will take
longer before the actual retransmit takes place.)
NOTE
If the
Automatic power control
option is enabled, the AP may dynamically change the
Minimum
rate
configured in all Virtual Network profiles. This is done to maintain a reasonable connection
speed for client stations when the AP is operating in environments with strong interference.