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CF.
The situation described in the question involves the use of Radio Resource Management (RRM) to manage the transmit power levels of the AP radios. RRM is a feature that dynamically adjusts the transmit power levels of AP radios to optimize coverage and reduce interference.
In this scenario, the wireless site survey determined that the AP radios in the hallway must be at 12 mW or higher to achieve proper HR-DSSS coverage within the rooms. However, RRM is reducing the power on the AP radios in the hallway to 6 mW, which is causing the coverage to be inadequate.
To prevent the HRDSSS AP radio power levels from dropping below 12 mW, two possible methods can be used:
A. Configure the minimum power-level assignment for the 2.4 GHz radio to 11 dBm under the individual TPC settings on the hallway APs. B. Configure the minimum power-level assignment for the 5 GHz radio to 11 dBm under the individual TPC settings on the hallway APs.
Explanation:
- Method A: This method involves configuring the minimum power-level assignment for the 2.4 GHz radio to 11 dBm under the individual TPC (Transmit Power Control) settings on the hallway APs. By doing this, RRM will not reduce the power on the AP radios below 11 dBm (which is approximately equivalent to 12 mW). This will ensure that the coverage in the hallway remains adequate. However, it is important to note that this method only applies to the 2.4 GHz radio and not the 5 GHz radio.
- Method B: This method is similar to method A, but it involves configuring the minimum power-level assignment for the 5 GHz radio to 11 dBm under the individual TPC settings on the hallway APs. This method ensures that RRM does not reduce the power on the 5 GHz radio below 11 dBm, which will help maintain the coverage in the hallway. This method applies only to the 5 GHz radio and not the 2.4 GHz radio.
Options C, D, E, and F are not suitable methods for preventing the HRDSSS AP radio power levels from dropping below 12 mW. Here's why:
- Option C: Configuring the minimum power-level assignment to 11 dBm under the global 802.11b/g/n TPC settings would affect all APs that support those standards, not just the ones in the hallway. This method would not specifically target the APs in the hallway, so it may not be effective in maintaining the required power levels in that area.
- Option D: Configuring the minimum power-level assignment to 11 dBm under the global 802.11a/n TPC settings would affect all APs that support those standards, not just the ones in the hallway. This method would not specifically target the APs in the hallway, so it may not be effective in maintaining the required power levels in that area.
- Option E: Statically configuring the 5 GHz radios on the hallway APs to power level 4 would override RRM and set the transmit power to a fixed level. However, this method does not guarantee that the power level will be sufficient to maintain adequate coverage. In addition, this method does not apply to the 2.4 GHz radio, which is also used in the hallway.
- Option F: Statically configuring the 2.4 GHz radios on the hallway APs to power level 4 would override RRM and set the transmit power to a fixed level. However, this method does not guarantee that the power level will be sufficient to maintain adequate coverage. In addition, this method does not apply to the 5 GHz radio, which is also used in the hallway