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PROXIMITY MEASUREMENT METHOD AND APPARATUS FOR DEVICE TO DEVICE COMMUNICATION IN MOBILE COMMUNICATION SYSTEM

  • US 20140160965A1
  • Filed: 12/05/2013
  • Published: 06/12/2014
  • Est. Priority Date: 12/06/2012
  • Status: Active Grant
First Claim
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1. A proximity measurement method for device-to-device (D2D) communication in a proximity measurement apparatus, the proximity measurement method comprising:

  • determining whether a cell identification (ID) is included in a packet received from a gateway;

    verifying whether the cell ID matches a pre-stored cell ID when the cell ID is included;

    extracting, from the packet, Internet Protocol addresses of mobile terminals transmitting and receiving the packet when the cell ID matches the pre-stored cell ID;

    searching for IP addresses matched to the extracted IP addresses based on a proximity list including IP addresses of mobile terminals performing D2D communication; and

    registering, when the extracted IP addresses are absent in the proximity list, the extracted IP addresses in the proximity list and measuring proximity between the mobile terminals.

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