Load balancing in wireless local area networks
First Claim
1. A method for load balancing a wireless network, the method comprising:
- determining a delay cost for each of a plurality of access points in the wireless network, each of said access points having zero or more wireless nodes associated with it;
when the delay costs are not equal and when a difference in delay costs of two access points exceeds a cost to move a wireless node then;
determining an access point with the greatest delay cost;
for each wireless node associated with the access point with the greatest delay cost, determining an overall cost associated with moving the wireless node from the access point to each of one or more other access points of the plurality of access points; and
moving the wireless node to the access point of the one or more other access points having a lowest overall cost associated with moving the wireless node.
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Accused Products
Abstract
Systems and methods perform load balancing in a wireless network. In particular, one aspect of the systems and methods is the use of weighted mean end-to-end delay across the entire WLAN that is attributable to the wireless portion of the network as a measure of network performance and user satisfaction. The weighted mean end-to-end delay, the costs of refusing service to a mobile station or forcing a mobile station to switch to another access point may be added to determine whether it is desirable to switch a station to a new access point. A further aspect of the systems and methods is the measurement of network traffic, making predictions and optimizing allocation of station to access points every T seconds, where T is selected by the network manager.
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Citations
20 Claims
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1. A method for load balancing a wireless network, the method comprising:
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determining a delay cost for each of a plurality of access points in the wireless network, each of said access points having zero or more wireless nodes associated with it; when the delay costs are not equal and when a difference in delay costs of two access points exceeds a cost to move a wireless node then; determining an access point with the greatest delay cost; for each wireless node associated with the access point with the greatest delay cost, determining an overall cost associated with moving the wireless node from the access point to each of one or more other access points of the plurality of access points; and moving the wireless node to the access point of the one or more other access points having a lowest overall cost associated with moving the wireless node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A non-transitory computer-readable medium having computer executable instructions store thereon for causing one or more processors to execute operations for load balancing a wireless network, the operations comprising:
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determining a delay cost for each of a plurality of access points in the wireless network, each of said access points having zero or more wireless nodes associated with it; and when the delay costs are not equal and when a difference in delay costs of two access points exceeds a cost to move a wireless node then; determining an access point with the greatest delay cost, for each wireless node associated with the access point with the greatest delay cost, determining an overall cost associated with moving the wireless node from the access point to each of one or more other access points of the plurality of access points, and moving the wireless node to the access point of the one or more other access points having a lowest overall cost associated with moving the wireless node. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification