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METHOD AND APPARATUS FOR PERFORMING DEVICE TO DEVICE SERVICE IN WIRELESS COMMUNICATION SYSTEM

  • US 20160014825A1
  • Filed: 03/10/2014
  • Published: 01/14/2016
  • Est. Priority Date: 03/11/2013
  • Status: Active Grant
First Claim
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1. A method for performing a first communication device supporting a device to device (D2D) service in a wireless communication system, the method comprising:

  • receiving a discovery signal including an advertisement identifier (ID) that can be identified in a physical layer of the first communication device from a second communication device supporting the D2D service in a radio resource control (RRC) idle mode;

    determining, in the physical layer of the first communication device, whether to receive an additional advertisement signal from the second communication device on the basis of the advertisement ID;

    if it is determined to receive the additional advertisement signal, setting up an RRC connection with respect to a base station in response to the discovery signal;

    after the RRC connection is set up, transmitting a D2D link setup request message for setting up a D2D link with respect to the second communication device to the base station on the basis of information related to the second communication device and included in the discovery signal;

    setting up the D2D link with respect to the second communication device by using a resource scheduled by the base station; and

    receiving the additional advertisement signal through the D2D link.

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