Intelligent radio band reconfiguration for access points of a wireless network

Patent metadata

Field	Value
Publication number	US-12200499-B2
Application number	US-202318500794-A
Country	US
Kind code	B2
Filing date	Nov 2, 2023
Priority date	Sep 30, 2019
Publication date	Jan 14, 2025
Grant date	Jan 14, 2025

Abstract

Methods and apparatus for automatically reconfiguring network parameters are described. Some embodiments identify communication channels that may interfere with higher priority equipment and deactivate communication channels that may cause harmful interference. Some APs are switched to 2.4 GHz communication channels. In some embodiments, AP operating parameters, such as transmission power are adjusted to reduce interference for higher priority receivers.

First claim

What is claimed is:

1. A method comprising:
detecting radar interference at an access point (AP) of a plurality of APs of a wireless network in a first channel of a first wireless band;
blacklisting the first channel for the AP;
checking if another channel is available for the AP in the first wireless band;
in response to no channel being available for the AP in the first wireless band,
determining if a reconfiguration of the wireless network should be performed; and
in response to determining that reconfiguration of the wireless network should be performed, reconfiguring the wireless network based on signal strengths between the plurality of APs of the wireless network, the reconfiguring including inhibiting transmission by one or more APs of the plurality of APs having more than a threshold number of strong neighbor APs.

2. The method of claim 1 , wherein the reconfiguring the wireless network includes switching channels of the plurality of APs to operate on a second wireless band.

3. The method of claim 2 , wherein the first wireless band is a 5 GHz frequency band and the second wireless band is a 2.4 GHz frequency band.

4. The method of claim 1 , further comprising:
receiving service related information from the plurality of APs; and
sending configuration information to the plurality of APs.

5. The method of claim 1 , wherein inhibiting transmission by the one or more APs of the plurality of APs comprises shutting down a transmitter of the one or more APs of the plurality of APs.

6. The method of claim 1 , wherein inhibiting transmission by the one or more APs of the plurality of APs comprises adjusting a transmission power of the one or more APs of the plurality of APs.

7. The method of claim 1 , further comprising:
adjusting a power level of at least one remaining AP of the plurality APs after inhibiting transmission by the one or more APs of the plurality of APs having more than the threshold number of strong neighbor APs.

8. The method of claim 1 , wherein inhibiting transmission by the one or more APs comprises iteratively inhibiting transmission by the one or more APs having more than the threshold number of strong neighbor APs until no AP of the plurality of APs has more than the threshold number of strong neighbor APs.

9. The method of claim 8 , further comprising:
monitoring one or more wireless network performance parameters between each iterative inhibiting of transmission;
comparing the one or more wireless network performance parameters of a first iteration to one or more wireless network performance parameters of a subsequent iteration; and
resuming transmission of a previously inhibited AP in response to the comparison.

10. A system comprising:
hardware processing circuitry;
one or more hardware memories storing instructions that when executed configure the hardware processing circuitry to perform operations comprising:
detecting radar interference at an access point (AP) of a plurality of APs of a wireless network in a first channel of a first wireless band;
blacklisting the first channel for the AP;
checking if another channel is available for the AP in the first wireless band;
in response to no channel being available for the AP in the first wireless band,
determining if a reconfiguration of the wireless network should be performed; and
in response to determining that reconfiguration of the wireless network should be performed, reconfiguring the wireless network based on signal strengths between the plurality of APs of the wireless network, the reconfiguring including inhibiting transmission by one or more APs of the plurality of APs having more than a threshold number of strong neighbor APs.

11. The system of claim 10 , wherein the reconfiguring the wireless network includes switching channels of the plurality of APs to operate on a second wireless band.

12. The system of claim 11 , wherein the first wireless band is a 5 GHz frequency band and the second wireless band is a 2.4 GHz frequency band.

13. The system of claim 10 , wherein the instructions configure the hardware processing circuitry to further perform operations comprising:
receiving service related information from the plurality of APs; and
sending configuration information to the plurality of APs.

14. The system of claim 10 , wherein inhibiting transmission by the one or more APs of the plurality of APs comprises shutting down a transmitter of the one or more APs of the plurality of APs.

15. The system of claim 10 , wherein inhibiting transmission by the one or more APs of the plurality of APs comprises adjusting a transmission power of the one or more APs of the plurality of APs.

16. The system of claim 10 , wherein the instructions configure the hardware processing circuitry to further perform operations comprising:
adjusting a power level of at least one remaining AP of the plurality APs after inhibiting transmission by the one or more APs of the plurality of APs having more than the threshold number of strong neighbor APs.

17. The system of claim 10 , wherein inhibiting transmission by the one or more APs comprises iteratively inhibiting transmission by the one or more APs having more than the threshold number of strong neighbor APs until no AP of the plurality of APs has more than the threshold number of strong neighbor APs.

18. The system of claim 17 , wherein the instructions configure the hardware processing circuitry to further perform operations comprising:
monitoring one or more wireless network performance parameters between each iterative inhibiting of transmission;
comparing the one or more wireless network performance parameters of a first iteration to one or more wireless network performance parameters of a subsequent iteration; and
resuming transmission of a previously inhibited AP in response to the comparison.

19. Non-transitory computer readable storage media comprising instructions that when executed configure hardware processing circuitry to perform operations comprising:
detecting radar interference at an access point (AP) of a plurality of APs of a wireless network in a first channel of a first wireless band;
blacklisting the first channel for the AP;
checking if another channel is available for the AP in the first wireless band;
in response to no channel being available for the AP in the first wireless band,
determining if a reconfiguration of the wireless network should be performed; and
in response to determining that reconfiguration of the wireless network should be performed, reconfiguring the wireless network based on signal strengths between the plurality of APs of the wireless network, the reconfiguring including inhibiting transmission by one or more APs of the plurality of APs having more than a threshold number of strong neighbor APs.

20. The non-transitory computer readable storage media of claim 19 ,
wherein the reconfiguring the wireless network includes switching channels of the plurality of APs to operate on a second wireless band, and
wherein the first wireless band is a 5 GHz frequency band and the second wireless band is a 2.4 GHz frequency band.

Assignees

• Juniper Networks Inc

Inventors

• Wang Wenfeng

Classifications

• H04B17/318

  Received signal strength · CPC title

• H04W72/566

  of the information or information source or recipient · CPC title

• H04W72/541

  using the level of interference · CPC title

• H04W72/54

  based on quality criteria · CPC title

• H04W52/245

  taking into account received signal strength · CPC title