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Automatic channel layering in a Wi-Fi communication system

  • US 10,313,945 B2
  • Filed: 09/08/2017
  • Issued: 06/04/2019
  • Est. Priority Date: 01/19/2012
  • Status: Active Grant
First Claim
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1. A computer-implemented method in a controller of a wireless communication network deploying multiple access points on multiple communication channels to optimize a coverage area while minimizing interference, the method comprising the steps of:

  • receiving an indication that channel capacity is above a limit on the wireless communication network;

    collecting RSSI (received signal strength indicator) values for each station heard from each of a plurality of access points managed by the controller;

    assigning a first subset of the plurality of access points to a first communication channel including a selection of access points sufficient to provide coverage to as many stations as possible on the first communication channel, wherein the selection comprises determining the highest goodness-index among the plurality of access points as a factor to assigning the first subset, the goodness-index based on a difference between an RSSI value of a best AP and an RSSI value of a next best AP, the goodness-index being indicative of whether an AP is properly assigned;

    assigning a second subset of the plurality of access points to a second communication channel including remaining access points of the plurality of access points not in the first subset of the plurality of access points based on the goodness-index;

    sending messages to the plurality of access points with channel assignments; and

    handing-off a station from a first access point on the first communication channel to a second access point on the second communication channel without requiring reconfiguration to the second access point by the station other than changing channels.

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