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Listening window adjustments for power savings in bluetooth low energy (BLE) communications

  • US 9,668,209 B1
  • Filed: 06/29/2016
  • Issued: 05/30/2017
  • Est. Priority Date: 06/29/2016
  • Status: Active Grant
First Claim
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1. A method for BLE (Bluetooth Low Energy) packet communications, comprising:

  • communicating packets between a first BLE device and a second BLE device using a defined time interval between packet communications;

    listening at the first BLE (Bluetooth Low Energy) device within a listening window for a packet transmitted from the second BLE device;

    receiving within the listening window a packet at the first BLE device transmitted from the second BLE device;

    determining a time difference between an assumed transmission time for the packet based upon the defined time interval and an actual receive time for the packet;

    adjusting the listening window for first BLE device using the time difference; and

    operating the first BLE device to listen within the adjusted listening window for one or more additional packets transmitted from the second BLE device.

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