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System and method for terminal-group based HARQ for cellular integrated D2D communications

  • US 9,479,292 B2
  • Filed: 10/13/2015
  • Issued: 10/25/2016
  • Est. Priority Date: 12/18/2012
  • Status: Active Grant
First Claim
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1. A method for supporting two-level terminal-group based hybrid-automatic repeat request (HARQ) signaling, the method comprising:

  • receiving, at a cooperating user equipment (CUE) within a virtual multi-point (ViMP) node comprising a plurality of UEs, a data packet for a target UE (TUE), within the ViMP node, that is broadcasted from a base station (BS) to the ViMP node;

    successfully decoding the data packet;

    in an absence of an acknowledgement (ACK) message or a negative ACK (NACK) message from the TUE, broadcasting, by the CUE, the data packet within the ViMP node; and

    subsequent to the broadcasting, and in an absence of the NACK message from the TUE, rebroadcasting, by the CUE, the data packet within the ViMP node until either the CUE receives a subsequent broadcast of the data packet from the BS, or the CUE receives the ACK message from the TUE or the ViMP node.

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