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Enabling concurrent proprietary audio and Bluetooth low energy using enhanced LE link layer for hearing device

  • US 9,832,578 B2
  • Filed: 02/22/2016
  • Issued: 11/28/2017
  • Est. Priority Date: 02/23/2015
  • Status: Active Grant
First Claim
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1. A method of concurrent use of a radio transceiver for both control data and audio streaming, comprising:

  • controlling a physical layer of a radio transceiver in a battery-powered mobile device using a Bluetooth low energy link layer, wherein the link layer;

    establishes regular anchor timing for transception of control data through connection events, with idle time periods between connection events, all in accordance with Bluetooth low energy protocol;

    for each connection event, clocks a remaining duration of the current idle time period;

    receives requests for real time audio streaming transmissions in bursts, such bursts having a duration shorter than the regular anchor timing and no greater than 10 ms, the bursts collectively providing real time audio streaming of at least 34 kbps, the requests including time slot information;

    determines, based on the time slot information, whether each requested burst can be completed during the remaining duration of the current idle time period, wherein;

    if the requested burst cannot be completed during the remaining duration of the current idle time period, the link layer maintains communication between a control data stack and the physical layer of the Bluetooth low energy radio; and

    if the requested burst can be completed during the remaining duration of the current idle time period, the link layer provides communication between an audio stack and the physical layer of the Bluetooth low energy radio.

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