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Session management and control procedures for supporting multiple groups of sink devices in a peer-to-peer wireless display system

  • US 9,699,500 B2
  • Filed: 12/13/2013
  • Issued: 07/04/2017
  • Est. Priority Date: 12/13/2013
  • Status: Active Grant
First Claim
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1. An apparatus configured as a source device to transmit multimedia content to a plurality of sink devices, comprisinga processor configured to:

  • connect the source device to the plurality of sink devices by making a first Wi-Fi peer-to-peer connection with a first sink device in a first group and a second Wi-Fi peer-to-peer connection with a second sink device in a second group;

    generate a first control message including a first group session ID and a first transport port number at the source device, the first transport port number to be used for communicating to the first group a particular multimedia content associated with the first group, the first group session ID being used by the source for autonomously initiating a group session with the first group;

    generate a second control message including a second group session ID and a second transport port number at the source device, the second transport port number to be used for communicating to the second group a particular multimedia content associated with the second group, the second group session ID being used by the source for autonomously initiating a group session with the second group;

    determine a set of streaming parameters for the Wi-Fi peer-to-peer connected sink devices associated with the first group session ID based on capabilities of the first group; and

    determine a set of streaming parameters for the Wi-Fi peer-to-peer connected sink devices associated with the second group session ID based on capabilities of the second group;

    a transmitter configured to;

    transmit to each of the Wi-Fi peer-to-peer connected sink devices in the first group the first control message;

    transmit to each of the Wi-Fi peer-to-peer connected sink devices in the second group the second control message;

    transmit, using the first transport port number and according to the set of streaming parameters associated with the first group, the particular multimedia content to the Wi-Fi peer-to-peer connected sink devices of the first group; and

    transmit, using the second transport port number and according to the set of streaming parameters associated with the second group, the particular multimedia content to the Wi-Fi peer-to-peer connected sink devices of the second group.

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