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Beacon requests and RS bit resolving circular routes

  • US 8,441,987 B2
  • Filed: 11/07/2011
  • Issued: 05/14/2013
  • Est. Priority Date: 09/15/2006
  • Status: Active Grant
First Claim
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1. A method of synchronizing an end device in a utility metering network, comprising:

  • detecting a power outage at a first end device;

    incrementing a power outage counter at the first end device;

    sending a synchronization request from the first end device to a second end device when power is restored to the first end device;

    receiving the synchronization request at the second end device;

    determining whether the second end device is synchronized with a father network device based on whether the second end device has received a message from a father network device within a predetermined time interval;

    transmitting a synchronization acceptance signal from the second end device to the first end device when the second end device is synchronized with a father network device; and

    transmitting a beacon request signal from the second end device to a registered father network device when the second end device is not synchronized with the father network device.

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