RRM Profile

Context

WLAN technology uses radio signals (such as 2.4 GHz or 5 GHz radio waves) as transmission medium. Radio waves will attenuate when they are transmitted over air, degrading service quality for wireless users. Radio resource management enables a WLAN to adapt to changes in the radio environment by dynamically adjusting radio resources. This improves service quality for wireless users.

Procedure

Create an RRM profile.

Choose Configuration > Wireless Services > Profile > Radio Management > RRM Profile. The RRM Profile List page is displayed.
Click Create. The Create RRM Profile page is displayed.
Enter the name of the new RRM profile in Profile name.
To copy all parameters from another profile to the new profile, select the name of the profile in Copy parameters from other profiles. If None is selected, parameters are not copied from another profile.
Click OK. The parameter setting page of the new RRM profile is displayed.

Set parameters for creating an RRM profile. Table 1 describes the parameters for creating an RRM profile.

**Table 1** Parameters for creating an RRM profile
Parameter	Description
RRM Profile	Name of the RRM profile, which cannot be modified.
Airtime fair scheduling	Whether to enable airtime fair scheduling.
DFS channel switchback delay	Delay in switching back the DFS channel. The default value is 0. The value 0 indicates that the channel is switched back immediately when the aging time expires. Other values indicate that the channel is switched back after the specified delays.
Upper calibration power threshold	Maximum transmit power that can be adjusted through radio calibration.
Lower calibration power threshold	Minimum transmit power that can be adjusted through radio calibration.
Calibration TPC threshold	Transmit Power Control (TPC) coverage threshold.
High-density AMC optimization	Whether to enable Adaptive Modulation and Coding (AMC) optimization function in high-density scenarios.
Air Interface Deterioration Indicator
Collision threshold	Collision threshold for triggering calibration.
Noise floor threshold	Noise floor threshold for triggering calibration.
UAC
UAC policy	User CAC policy.
New user count threshold	CAC threshold for new users based on the user quantity.
Roaming user count threshold	CAC threshold for roaming users based on the user quantity.
New user channel usage threshold	CAC threshold for new users based on the channel usage.
Roaming user channel usage threshold	CAC threshold for roaming users based on the channel usage.
Hide SSID when user count threshold is exceeded	Whether to enable an AP to automatically hide its SSID when the number of new users reaches the CAC threshold.
Restrict access of weak-signal STAs	Whether to restrict access from weak-signal STAs.
SNR threshold	Threshold for rejecting access from weak-signal STAs.
Band Steering
Start threshold for load balancing between frequencies	Start threshold for load balancing between two radios on the AP that has band steering enabled.
Load difference threshold for load balancing between frequencies	Load difference threshold for load balancing between two radios on the AP that has band steering enabled.
Start SNR threshold for inter-frequency load balancing	Start SNR threshold for load balancing between two radios on the AP that has band steering enabled.
Maximum number of rejections	Maximum number of times an AP rejects association requests of a STA through band steering.
Probe count for aging STA frequency band	Number of times an AP continuously receives probe frames from the same frequency band.
Dynamic Load Balancing
Load balancing	Whether to enable load balancing.
Maximum number of rejections	Maximum number of times an AP rejects association requests of a STA for dynamic load balancing.
Mode	Dynamic load balancing mode, which can be based on the number of STAs or the channel utilization.
Start threshold for load balancing (STA count)	Start threshold for dynamic load balancing based on the number of STAs.
Load difference threshold for load balancing	Load difference threshold for dynamic load balancing.
Start threshold for load balancing (%)	Start threshold for dynamic load balancing based on the channel utilization.
Smart Roaming
Smart roaming	Whether to enable smart roaming.
Check roaming threshold	Trigger mode of smart roaming, which can be check SNR or check rate.
SNR threshold	SNR-based roaming threshold.
Rate percentage threshold	Rate-based roaming threshold.
Upper threshold of roaming SNR difference	Upper threshold for triggering STA roaming.
Lower threshold of roaming SNR difference	Lower threshold for triggering STA roaming.
SNR detection interval	SNR detection interval of smart roaming STAs.
Aging time of "unable to roam" record	Aging time of "unable to roam" record of smart roaming STAs.
Forcibly Disconnecting STAs
Forcibly disconnecting STAs	Whether to forcibly disconnect STAs.
SNR threshold	SNR threshold for forcing low-signal users offline.
Rate percentage threshold	Rate percentage for forcing low-signal users offline
SFN
Upper STA RSSI threshold	Upper RSSI threshold for agile distributed SFN roaming.
Lower STA RSSI threshold	Lower RSSI threshold for agile distributed SFN roaming.
Cumulative RSSI change threshold	Cumulative RSSI change threshold for agile distributed SFN roaming.
Number of STA holding times	Number of STA holding times for agile distributed SFN roaming.
RSSI gap	RSSI gap for agile distributed SFN roaming RUs.
Number of higher RSSI times	Number of times the RSSI of agile distributed SFN roaming RUs is higher than that of the local RU.
Roaming decision period	Decision period for agile distributed SFN roaming.
RSSI report interval	Interval for RUs to report the STA RSSI.

Click Apply.

Modify an RRM profile.
1. Choose Configuration > Wireless Services > Profile > Radio Management > RRM Profile. The RRM Profile List page is displayed.
2. Click the name of the RRM profile that you want to modify. The RRM Profile page is displayed.
3. Modify parameters of the RRM profile. Table 1 describes the parameters for modifying an RRM profile.
4. Click Apply.
Delete an RRM profile.
1. Choose Configuration > Wireless Services > Profile > Radio Management > RRM Profile. The RRM Profile List page is displayed.
2. Select the profile that you want to delete and click Delete. In the Confirm dialog box that is displayed, click OK.
Display the profile reference relationship.
1. Choose Configuration > Wireless Services > Profile > Radio Management > RRM Profile. The RRM Profile List page is displayed.
2. Select the profile of which you want to display the reference relationship and click Display Reference Relationship. The system displays the types and names of the objects that reference the profile.
  NOTE:
  Click Hide Reference Relationship. The system hides the displayed results.