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Network centric localization for determining the location of mobile devices

  • US 10,386,454 B2
  • Filed: 02/09/2015
  • Issued: 08/20/2019
  • Est. Priority Date: 02/07/2014
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a location server comprising a network interface for receiving a plurality of measurement reports submitted from a plurality of reference nodes of a location network, each of the plurality of measurement reports reporting a measurement of a signal received by a respective one of the plurality of reference nodes from a respective one of one or more mobile devices;

    a localization module configured to determine a location of the one or more of the mobile devices based on at least some of said plurality of measurement reports; and

    a node manager configured to control whether and/or when one or more of said plurality of measurement reports are submitted from one or more of the plurality of reference nodes, in dependence on a measure of relevance to said determination of the location of the one or more of the mobile devices;

    wherein said control by the node manager comprises;

    controlling a time at which one or more of the measurement reports are submitted to the location server, the time depending on the measure of relevance so as to be staggered in time relative to the submission of one or more others of the measurement reports, andwherein controlling said time comprises;

    delaying the time at which one or more of the measurement reports are submitted, the delay being inversely related to the measure of relevance.

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