Minimum granularity for radio power adjustment on indoor settled 802.11n APs

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Huawei APs support automatic and manual radio power adjustment. The granularity for automatic adjustment depends on the calculation result for achieving optimal performance. The minimum granularity for manual adjustment is 1 dB.

Other related questions:
What is the minimum adjustment value of radio power for Huawei indoor APs (supporting 2.4 GHz and 5 GHz frequency bands) and outdoor 802.11n APs (supporting only the 2.4 GHz frequency band)
The radio power of Huawei APs can be adjusted automatically and manually. APs automatically adjust the radio power to the optimal value based on calculation. The minimum value for manual adjustment is 1 dBm.

Do APs support power adjustment and what is the power adjustment mechanism
Power adjustment is similar to channel adjustment. When an AP goes offline, the AC adjusts the power of neighboring APs to compensate for the coverage hole.

Mechanism of automatic transmit power adjustment for APs
APs support automatic adjustment of the transmit power, and the adjustment mechanism is similar to AP channel calibration. In AC+Fit AP networking, when an AP goes offline, the AC adjusts the power of neighboring APs to compensate for the coverage hole.

Adjustment of working channels of WLAN radios
Manually adjust working channels of WLAN radios. [HUAWEI] wlan [HUAWEI-wlan-view] ap 0 radio 0 or radio-profile name r1 [HUAWEI-wlan-radio-0/0] channel-mode fixed [HUAWEI-wlan-radio-0/0] channel 20mhz 6 Restore to the default channel by running the channel 20mhz 1 command. 20mhz indicates that the channel bandwidth is 20 MHz, which can be set to 40 MHz, 80 MHz, or 160 MHz. Web platform: - Choose Configuration > WLAN Configuration/AP Management > Radio Profile, and change Channel mode to fixed. - On the WLAN Configuration page, select 2.4 GHz or 5 GHz in the radio configuration area. Select the radio profile, channel bandwidth, channel, and power level in fixed mode. (To modify information, delete the existing configurations first. Then add a new radio profile and configure the parameters as required.) To check the working channel, run the display actual channel-power command. The following non-overlapping channels are available in mainland China: -2.4 GHz: 1, 6, 11 -5 GHz: 36, 40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161, 165 Note: 1. If the channel mode is changed from auto to fixed, APs will run in a fixed channel. 2. After automatic calibration is complete, the calibrated channel will be recorded after you disable the automatic calibration function and change the channel mode to fixed. This is applicable to scenarios with multiple APs. 3. To enable automatic calibration, ensure that the channel mode is auto. Otherwise, change the channel mode to auto first. 4. For Fit APs, the configurations take effect only after being delivered. 5. HT40 is not recommended in 2.4 GHz.

Radio power configuration
Manually adjust the radio power of ACs and Fat APs. [HUAWEI] wlan [HUAWEI-wlan-view] ap 0 radio 0 or radio-profile name r1 [HUAWEI-wlan-radio-0/0] power-mode fixed [HUAWEI-wlan-radio-0/0] power-level xx Configuration on the web platform: Choose Configuration > WLAN Configuration/AP Management > Radio Profile, and change Power mode to fixed. - On the WLAN Configuration page, select 2.4 GHz or 5 GHz in the radio configuration area. Select the radio profile, channel bandwidth, channel, and power level in fixed mode. (To modify information, delete the existing configurations first. Then add a new radio profile and configure the parameters as required.) Restore the default power by running the undo power-level command. The default power level is 0, that is, the maximum value. The value of the power level indicates the xx dBm that the transmit power decreases. To check the supported power level, run the display power-level ap-id 0 radio-id 0 command or run the display power-level interface wlan-radio0/0/0 command. This function cannot be deployed in batches, so the power level can only be adjusted one by one. The maximum power ranges from 20 to 30.

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