Method and apparatus for locating mobile units tracking another or within a prescribed geographic boundary

  • US 6,441,752 B1
  • Filed: 12/30/2000
  • Issued: 08/27/2002
  • Est. Priority Date: 12/30/2000
  • Status: Active Grant
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First Claim
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1. A method for providing the location of a portable mobile remote unit in a geographic region of a wireless network to a wireless consumer requesting the location of portable mobile remote units that are maintaining close proximity to the wireless consumer in the geographic region comprising:

  • i) obtaining the location of the wireless consumer at intervals over a period of time;

    ii) requesting at each interval, at the network, that all mobile remote units within close proximity of the wireless consumer disclose their location to the network;

    iii) maintaining a list of mobile remote units that provided their location at each interval after the request of (ii);

    iv) from the list of (iii), forwarding the location of at least a mobile remote unit to the mobile consumer upon determination that the remote unit maintained close proximity to the mobile consumer over the period of time of (i).

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