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Efficient Firmware Update in a Narrow Bandwidth System

  • US 20150121359A1
  • Filed: 03/15/2013
  • Published: 04/30/2015
  • Est. Priority Date: 05/04/2012
  • Status: Active Grant
First Claim
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1. A method of updating firmware in a plurality of endpoints configured as an advanced metering infrastructure (AMI) for automated meter reading (AMR), comprising:

  • sending an announcement of a firmware update to the plurality of endpoints configured as the AMI for AMR;

    multicasting the firmware update a plurality of times, as indicated by the announcement;

    receiving indications of missing blocks from a plurality of endpoints that did not successfully receive all blocks of the multicast firmware update; and

    sending missing blocks to the plurality of endpoints that did not successfully receive all blocks of the multicast firmware update according to the indications.

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