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Link-aware streaming adaptation

  • US 10,721,715 B2
  • Filed: 02/27/2014
  • Issued: 07/21/2020
  • Est. Priority Date: 03/01/2013
  • Status: Active Grant
First Claim
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1. A mobile device operable to receive hyper-text transfer protocol (HTTP) adaptive streaming (HAS), having computer circuitry configured to:

  • receive a manifest file for an HTTP adaptive stream from a node;

    determine a physical layer goodput, RiPHY, of the mobile device with the node, wherein the physical layer goodput is given by;

    RiPHY=Xi

    , wherein Xi is the number of successfully received bits in the ith video frameslot and τ

    is the video frame duration;

    determine one or more frame levels for the mobile device;

    determine a client state (Si) for the mobile device based on the one or more frame levels; and

    select a number of frames (Ni) and a representation level (Qi) for the HAS in the manifest file for a selected period based, at least in part, on the one or more frame levels for the mobile device, the client state (Si) for the mobile device, and the physical layer goodput,wherein Ni and Qi are selected to bound a delay of the HAS for a selected quality level at startup based in part on a first threshold value corresponding to a threshold number of frames to start playback of the HAS and a second threshold value corresponding to a target time to start playback, wherein the first threshold value and the second threshold value are selected to obtain a tradeoff between video quality and a start-up delay.

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