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S12700 V200R010C00 Configuration Guide - WLAN-AC

This document describes native AC (hereinafter referred to as WLAN AC) configuration procedures and provides configuration examples.
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Configuring Radio Calibration

Configuring Radio Calibration

Context

The radio calibration function can dynamically adjust channels and transmit power of APs managed by the same AC to ensure that the APs work at the optimal performance.

There are three radio calibration modes:
  • Auto mode: The device periodically implements global radio calibration at regular intervals (the interval is specified by interval and the default interval is 1440 minutes, and the start time for radio calibration is 00:00:00).
    NOTE:

    In auto mode, the device continuously detects neighbors and updates neighbor information. When a radio calibration interval is reached, global radio calibration is triggered. The auto mode applies to coverage hole compensation, coverage hole compensation reversal, and partial radio calibration.

  • Manual mode: The device does not proactively perform radio calibration. You need to run the calibrate manual startup command to trigger global calibration.
  • Schedule mode: The device triggers global radio calibration at a time specified by the parameter time.
The three modes cannot be configured simultaneously. You can choose any of the modes as required. Schedule mode is recommended, which can be specified using the calibrate enable schedule time time-value command. You can configure the device to perform radio calibration in off-peak hours, for example, between 00:00 am and 06:00 am.

Pre-configuration Tasks

Before configuring radio calibration, perform the task of WLAN Service Configuration.

Configuration Notes

  • Global radio calibration is implemented on all APs.

  • Radio calibration does not take effect on radios enabled with WDS or Mesh functions.

  • Radio calibration is not applicable to scenarios where APs cannot detect each other, for example, APs use directional antennas, are far from each other, or have obstacles between them.

  • Radio calibration is not applicable to high-density, WDS/Mesh backhaul, rail transportation, or external directional-antenna scenarios.

  • Radios in monitoring mode do not participate in calibration.
  • Some functions are dependent on channel scanning, for example, radio calibration, smart roaming, and WIDS. After such a function is configured, a channel switchover during the scanning increases the users service data delay, which may affect wireless service experience.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    wlan

    The WLAN view is displayed.

  3. Configure the automatic channel selection and automatic transmit power selection for APs.
    1. Run the rrm-profile name profile-name command to enter the RRM profile view.
    2. Run the undo calibrate auto-channel-select disable command to enable automatic channel selection.

      By default, automatic channel selection is enabled.

    3. Run the undo calibrate auto-txpower-select disable command to enable automatic transmit power selection.

      By default, automatic transmit power selection is enabled.

    4. Run the quit command to return to the WLAN view.
    5. Run the radio-2g-profile name profile-name or radio-5g-profile name profile-name command to enter the 2G or 5G radio profile view.
    6. Run the rrm-profile profile-name command to bind the RRM profile to the 2G or 5G radio profile.
    7. Run the quit command to return to the WLAN view.
  4. Run:

    calibrate enable { auto [ interval interval-value [ start-time start-time ] ] | manual | schedule time time-value }

    The radio calibration mode is configured.

    By default, the radio calibration mode is auto, the radio calibration interval is 1440 minutes, and the start time for radio calibration is 00:00:00.

  5. (Optional) Run:

    calibrate policy { rogue-ap | load | non-wifi }

    The radio calibration policy is created.

    By default, no radio calibration policy is created. Radio calibration policies can be used together. You can run the command multiple times to configure different radio calibration policies according to service requirements.

    Radio calibration policies are classified into:
    NOTE:

    The rogue AP and non-Wi-Fi policies take effect only in automatic radio calibration mode.

    • Rogue AP policy: When rogue APs (out of control by an AC) exist on a network, set the radio calibration policy to rogue-ap. The device then immediately takes actions to avoid interference. This policy may lead to frequency channel switchovers. You are advised to use this policy under the instruction of technical support personnel.
    • Load policy: When this radio calibration policy is used, the AP traffic load difference is considered for channel allocation. The device allocates channels with less interference to APs with heavier loads. The AP load changes with times. You are advised to use this policy under the instruction of technical support personnel.
    • Non-Wi-Fi policy: When non-Wi-Fi interference occurs on a network, the device immediately takes actions to avoid interference.

  6. (Optional) Run:

    calibrate sensitivity { low | medium | high }

    The radio calibration sensitivity is set for the device.

    By default, the radio calibration sensitivity of the device is medium.

  7. (Optional) Configure the calibration bandwidth and calibration channel set.
    1. Run the regulatory-domain-profile name profile-name command to enter the regulatory domain profile view.
    2. Run the dca-channel 5g bandwidth { 20mhz | 40mhz | 80mhz } command to configure the calibration bandwidth.

      By default, the global calibration bandwidth is 20 MHz. This command takes effect only on the 5 GHz frequency band.

    3. Run the dca-channel { 2.4g | 5g } channel-set channel-value command to configure a calibration channel set.

      By default, a calibration channel set contains channels 1, 6, and 11 on the 2.4G radio and contains all channels supported by the corresponding country code on the 5G radio. If the country code is China, the calibration channel set does not contain channels 36 to 64. When configuring the calibration channels, users can specify channels as prompted.

      NOTE:

      When configuring a calibration channel set, avoid using radar channels.

      The channels you configure must be supported by the terminals; otherwise, the terminals cannot discover wireless signals. For example, when the country code is set to China, 5 GHz channels 36, 40, 44, 48, 52, 56, 60, and 64 can be configured. However, most terminals do not support these channels currently. If these channels are configured, the terminals cannot discover wireless signals. In this case, you can configure 5 GHz channels 149, 153, 157, 161, and 165, which are supported by the terminals.

      Only the AP2030DN, AP2050DN, AP2050DN-E, AP4030DN, AP4130DN, AP5030DN, AP4030TN, AP4050DN-E, AP4050DN-HD, AP6050DN, AP6150DN, AP7050DN-E, AP5130DN, AP7030DE, AP9131DN, AP9132DN, AD9430DN-24 central AP (including the mapping RUs), AD9430DN-12 central AP (including the mapping RUs), AP9330DN, AP8030DN, AP8130DN-W, and AP8130DN support 80 MHz calibration bandwidth.

      When configuring 40 MHz or 80 MHz calibration bandwidth, check whether channels of the corresponding bandwidth exist under the country code.

      To ensure a good calibration effect, you are advised to configure at least three calibration channels.

      To prevent signal interference, ensure that adjacent APs work in non-overlapping channels. The 2.4 GHz frequency band has overlapping channels. When configuring calibration channels, you are advised to configure a non-overlapping calibration channel set containing channels 1, 6, and 11 or containing channels 1, 5, 9, and 13.

    4. Run the quit command to return to the WLAN view.
  8. Configure the air scan function for radio calibration.

    The configured air scan profile applies to the radio calibration, smart roaming, spectrum analysis, WLAN location, and WIDS functions.

    1. Run the air-scan-profile name profile-name command to create an air scan profile and enter the air scan profile view.
    2. Run the undo scan-disable command to enable the air scan function.

      By default, the air scan function is enabled.

    3. Run the scan-channel-set { country-channel | dca-channel | work-channel } command to configure an air scan channel set.

      By default, an air scan channel set contains all channels supported by the corresponding country code of an AP.

      If the radio working mode is set to monitor, the AP scans all channels supported by the country code.

    4. Run the scan-interval scan-time command to set the air scan interval.

      By default, the air scan interval is 60000 ms.

    5. Run the scan-period scan-time command to set the air scan period.

      By default, the air scan period is 60 ms.

    6. Run the quit command to return to the WLAN view.
    7. Run the radio-2g-profile name profile-name or radio-5g-profile name profile-name command to enter the 2G or 5G radio profile view.
    8. Run the air-scan-profile profile-name command to bind the air scan profile to the 2G or 5G radio profile.
    9. Run the quit command to return to the WLAN view.
  9. Bind the radio profile and regulatory domain profile to an AP group or AP. For the detailed procedure of binding a radio profile, see Binding a Radio Profile.

    Binding the radio profile and regulatory domain profile to an AP group

    1. Run the ap-group name group-name command to enter the AP group view.
    2. Run the regulatory-domain-profile profile-name command to bind the regulatory domain profile to the AP group.

    Binding the radio profile and regulatory domain profile to an AP

    1. Run the ap-id ap-id, ap-mac ap-mac, or ap-name ap-name command to enter the AP view.
    2. Run the regulatory-domain-profile profile-name command to bind the regulatory domain profile to the AP.
  10. Run:

    quit

    Return to the WLAN view.

  11. Run:

    commit { all | ap-name ap-name | ap-id { ap-id1 [ to ap-id2 ] } &<1-10> }

    Configurations are delivered to APs.

Verifying the Configuration

  • Run the display wlan calibrate channel-set ap-group { name ap-group-name | all } command to check the calibration channel and bandwidth that take effect.
  • Run the display regulatory-domain-profile name profile-name command to check the configured calibration channel set and calibration bandwidth.
  • Run the display rrm-profile name profile-name command to check whether the automatic channel selection and transmit power selection functions are enabled for APs.
  • Run the display air-scan-profile name profile-name command to check the air scan profile configuration.
  • Run the display radio-2g-profile name profile-name command to check the RRM profile and air scan profile bound to a 2G radio profile.
  • Run the display radio-5g-profile name profile-name command to check the RRM profile and air scan profile bound to a 5G radio profile.

Follow-up Procedure

In any mode, you can run the calibrate manual startup command to trigger the calibration. In manual mode, the device implements radio calibration only after the calibrate manual startup command is executed.

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Updated: 2019-08-21

Document ID: EDOC1000142094

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