IP Library Granted Patent US 11,129,027
Granted Patent B2
US 11,129,027 · App. 16/696,231 · Granted Sep 21, 2021

Intelligent radio band reconfiguration of access points in a wireless network

Inventor: Wenfeng Wang (Cupertino, CA)
Assignee: Juniper Networks, Inc.
H04W16/10H04B17/318H04W16/14H04W52/243H04W52/245H04W72/082H04W72/1226H04W72/1247
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Quick Facts
Patent No.
US 11,129,027
App. No.
16/696,231
Granted
Sep 21, 2021
Kind
B2
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.

Claims (32)

1. A method comprising:

for each of a plurality of access points (APs) in a wireless network, in response to determining that signal strength measurements between the AP and one or more other of the plurality of APs is above a predefined strength signal threshold, identifying, by a processor of an automated network management system, the one or more other of the plurality of APs as strong neighbor APs;

for each of the plurality of APs having more than a threshold number of strong neighbor APs, determining, by the processor of the automated network management system, a difference between a capacity for an on state and a capacity for an off state; and

inhibiting transmission, by the processor of the automated network management system, by one of the plurality of APs determined to have a smallest difference between the respective capacity for the on state and the respective capacity for the off state.

2. The method of claim 1 , further comprising: and

inhibiting transmission, by the processor of the automated network management system, by a second one of a remaining plurality of APs having more than the threshold number of strong neighbor APs after inhibiting transmission of the first one of the plurality of APs.

3. The method of claim 1 , wherein inhibiting transmission of the first one of the plurality of APs the shutting down comprises shutting down a transmitter of the first one of the plurality of APs.

4. The method of claim 1 , wherein the capacity for the on state for each of the plurality of APs having more than a threshold number of strong neighbor APs is a percent utilization of maximum throughput of the respective AP.

5. The method of claim 1 , further comprising adjusting a transmission power of at least a second one of the plurality of APs having more than the threshold number of strong neighbor APs.

6. The method of claim 1 , further comprising iteratively inhibiting transmission by one or more APs having more than a threshold number of strong neighbor APs until no AP of the plurality of APs has more than the threshold number of strong neighbor APs.

7. The method of claim 6 , further comprising recording system level experience (SLE) parameters between each iterative inhibiting of transmission, comparing the recorded SLE parameters of a first iteration to recorded SLE parameters of a subsequent iteration, and resuming transmission of a previously inhibited AP in response to the comparison.

8. The method of claim 1 , further comprising inhibiting transmission by the first one of the plurality of APs in response to detecting a 5 Ghz channel is unavailable for use by the plurality of APs.

9. 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:

for each of a plurality of access points (APs) in a wireless network, in response to determining that signal strength measurements between the AP and one or more other of the plurality of APs is above a predefined strength signal threshold, identifying the one or more other of the plurality of APs as strong neighbor APs;

for each of the plurality of APs having more than a threshold number of strong neighbor APs, determining a difference between a capacity for an on state and a capacity for an off state; and

inhibiting transmission, by the processor of the automated network management system, by one of the plurality of APs determined to have a smallest difference between the respective capacity for the on state and the respective capacity for the off state.

10. The system of claim 9 , the operations further comprising:

inhibiting transmission by a second one of a remaining plurality of APs having more than the threshold number of strong neighbor APs after inhibiting transmission of the first one of the plurality of APs.

11. The system of claim 9 , wherein inhibiting transmission of the first one of the plurality of APs comprises shutting down a transmitter of the first one of the plurality of APs.

12. The system of claim 9 , wherein the capacity for the on state for each of the plurality of APs having more than a threshold number of strong neighbor APs is a percent utilization of maximum throughput of the AP.

13. The system of claim 9 , the operations further comprising adjusting a transmission power of at least a second one of the plurality of APs having more than the threshold number of strong neighbor APs.

14. The system of claim 9 , the operations further comprising iteratively inhibiting transmission by one or more APs having more than a threshold number of strong neighbor APs until no AP has more than the threshold number of strong neighbor APs.

15. The system of claim 14 , the operations further comprising recording service level experience (SLE) parameters between each iterative inhibiting of transmission, comparing the recorded SLE parameters of a first iteration to recorded SLE parameters of a subsequent iteration, and resuming transmission by an inhibited AP in response to the comparison.

16. The system of claim 9 , the operations further comprising inhibiting transmission by the first one of the plurality of APs in response to detecting a 5 GHz channel is unavailable for use by the plurality of APs.

17. A non-transitory computer readable storage medium comprising instructions that when executed configure hardware processing circuitry to perform operations comprising:

for each of a plurality of access points (APs) in a wireless network, in response to determining that signal strength measurements between the AP and one or more other of the plurality of APs is above a predefined strength signal threshold, identifying the one or more other of the plurality of APs as strong neighbor APs;

for each of the plurality of APs having more than a threshold number of strong neighbor APs, determining a difference between a capacity for an on state and a capacity for an off state; and

inhibiting transmission, by the processor of the automated network management system, by one of the plurality of APs determined to have a smallest difference between the respective capacity for the on state and the respective capacity for the off state.

18. The non-transitory computer readable storage medium of claim 17 , the operations further comprising:

inhibiting transmission by a second one of a remaining plurality of APs having more than the threshold number of strong neighbor APs after inhibiting transmission of the first one of the plurality of APs.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 9, 2022
From: WANG, WENFENG
To: JUNIPER NETWORKS, INC.
Reel/Frame 059356/0864 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 26, 2019
From: WANG, WENFENG
To: JUNIPER NETWORKS, INC.
Reel/Frame 051120/0810 →
Continuity (2)
Provisional Application 62907889 · Sep 30, 2019
Related Publication 20210099887A1 · Apr 1, 2021
Cited By (2)
US 12,200,499 US 12,666,363