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Techniques for supporting relay operation in wireless communication systems

  • US 9,294,219 B2
  • Filed: 09/28/2009
  • Issued: 03/22/2016
  • Est. Priority Date: 09/30/2008
  • Status: Active Grant
First Claim
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1. A method of wireless communication by a relay station, the method comprising:

  • communicating with a base station on backhaul subframes and with a user equipment (UE) on access subframes;

    selecting an initial access subframe for a packet;

    finding a subframe, corresponding to the initial access subframe, for an acknowledge (ACK) of the packet, according to a predefined hybrid automatic retransmission (HARM) time line;

    determining whether the corresponding ACK subframe is a backhaul subframe;

    incrementing a value of a target termination for the packet if the corresponding ACK subframe is not a backhaul subframe;

    selecting a modulation and coding scheme (MCS) for the packet based on the target termination for the packet; and

    scheduling a transmission of the packet on the initial access subframe according to the selected MCS.

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