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Adjusting a jitter buffer based on inter arrival jitter

  • US 9,882,818 B2
  • Filed: 09/29/2014
  • Issued: 01/30/2018
  • Est. Priority Date: 09/30/2013
  • Status: Active Grant
First Claim
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1. A wireless user equipment (UE) device, comprising:

  • a radio; and

    a processing element;

    wherein the radio and the processing element are configured to;

    wirelessly receive a plurality of audio data packets via the radio, wherein the plurality of audio data packets correspond to a first application of a first application type;

    calculate an inter-arrival-jitter (IAJ) value for each of the plurality of received audio data packets;

    generate an IAJ distribution for the plurality of received audio data packets;

    determine a target packet loss rate for the audio data packets based on the first application type;

    determine a quality of service (QoS) value for use in determining a de-jitter delay value, wherein the QoS value is mapped from the target packet loss rate based on a first probability distribution;

    calculate the de-jitter delay value based on the IAJ distribution generated for the plurality of received audio packets and the QoS value, wherein the de-jitter delay value corresponds to the target packet loss rate, and wherein said calculating the de jitter delay value comprises applying the QoS value to the IAJ distribution to determine the de-jitter delay value;

    perform playback of the received audio data packets, wherein the performing is based at least in part on the de-jitter delay value; and

    performing;

    receiving additional audio data packets of the first application,updating the IAJ distribution based on the additional audio data packets,recalculating the de-litter delay value by applying the QoS value to the updated IAJ distribution, andperforming playback using the recalculated de-jitter delay value repeatedly throughout execution of the first application.

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