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NCMA-based uplink communication method and device therefor

  • US 10,736,134 B2
  • Filed: 04/12/2017
  • Issued: 08/04/2020
  • Est. Priority Date: 04/19/2016
  • Status: Active Grant
First Claim
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1. A method for performing uplink communication by a user equipment (UE) operating in a wireless communication system, the method comprising:

  • receiving configuration information for a codebook set related with a modulation scheme;

    receiving a UL grant comprising a specific codeword index;

    selecting a codebook based on the specific codeword index included in the codebook set andtransmitting data based on the selected codebook,wherein the codebook set comprises a plurality of codebooks that are predefined for non-orthogonal coded multiple access (NCMA) based communication, andwherein the codebook set is configured based on a spreading factor or an overloading factor.

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