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Estimating qualities of links between nodes of a wireless network

  • US 10,356,638 B2
  • Filed: 03/10/2015
  • Issued: 07/16/2019
  • Est. Priority Date: 03/10/2015
  • Status: Active Grant
First Claim
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1. A method of estimating qualities of links between nodes, comprising:

  • passively receiving, by a plurality of network sensors configured to determine link quality, a plurality of wireless packets between a network device and an access point to the wireless network;

    obtaining, by a service engine, a plurality of link quality signatures from the plurality of network sensors, wherein each of the plurality of link quality signatures includes capacity and strength link qualities between a network node, the network node including the network device or the access point, and the plurality of network sensors, wherein the obtained plurality of link quality signatures are determined upon sensing a motion of the network node of greater than a threshold;

    estimating, by the service engine, the capacity and strength link qualities between the network device and the access point based on training measurements on the plurality of link quality signatures and an estimation model;

    determining the estimation model by assigning different weights to different cases of the training measurement, wherein assigning the different weights includes assigning additional weight to the different cases of the training measurement if the capacity and strength link qualities are below a threshold; and

    wherein obtaining the plurality of link quality signatures by the service engine is based on a sampling rate of the plurality of wireless packets, and wherein a plurality of coordinated network sensors of the plurality of network sensors is synchronized relative to the sampling rate to improve data throughput to the service engine.

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