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Methods and arrangements for device discovery

  • US 9,521,537 B2
  • Filed: 10/07/2014
  • Issued: 12/13/2016
  • Est. Priority Date: 10/07/2013
  • Status: Active Grant
First Claim
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1. A method executed in a second wireless terminal for discovering a first wireless terminal, wherein the second wireless terminal is configured with a set of one or more identities of wireless terminals with which device-to-device (D2D) communication is possible, the method comprising:

  • detecting a control signal transmitted from the first wireless terminal, wherein the control signal carries an identity;

    decoding the control signal; and

    for each identity in the set, executing the following steps until all the identities in the set have been selected or until a match is found;

    hashing a reference control signal comprising the identity from the set, taking a time stamp used for the control signal transmission as one input parameter of the hashing function, anddetermining whether the output signal of the hashing matches the decoded control signal.

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