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Interference coordination for peer-to-peer (P2P) communication and wide area network (WAN) communication

  • US 10,517,098 B2
  • Filed: 07/21/2011
  • Issued: 12/24/2019
  • Est. Priority Date: 07/30/2010
  • Status: Active Grant
First Claim
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1. A method of wireless communication of a base station in a wide area network (WAN), comprising:

  • receiving at least one measurement from a first peer-to-peer (P2P) device supporting P2P communication and WAN communication, the at least one measurement being a pathloss from at least one second P2P device to the first P2P device;

    selecting between P2P communication and WAN communication for communication between the first P2P device and the at least one second P2P device based on the at least one measurement, wherein the WAN communication includes communication between at least one base station and the first P2P device, and wherein the P2P communication includes direct communication between the first P2P device and the at least one second P2P device;

    sending results of the selection to the first P2P device, the results indicating the selected one of P2P communication or WAN communication;

    receiving, at the base station, at least one interference measurement for at least one WAN device from the first P2P device, the at least one WAN device communicating with the WAN via the base station, the at least one interference measurement indicating interference greater than a threshold detected by the first P2P device from the at least one WAN device, wherein the at least one interference measurement is further indicative of particular resources on which the interference is detected by the first P2P device, wherein the at least one WAN device is different from the first P2P device and the second P2P device;

    configuring the at least one WAN device to transmit a sounding reference signal on different resources;

    identifying the at least one WAN device causing interference greater than the threshold to the first P2P device based on resources on which the interference is detected by the first P2P device and resources on which each of the at least one WAN device is configured to transmit the sounding reference signal; and

    reducing a transmit power level of the identified at least one WAN device to reduce interference to the first P2P device.

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