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Method of fast-retransmitting uplink data in wireless communication system and apparatus therefor

  • US 10,375,725 B2
  • Filed: 09/25/2015
  • Issued: 08/06/2019
  • Est. Priority Date: 03/16/2015
  • Status: Active Grant
First Claim
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1. A method for transmitting, by a user equipment (UE), uplink (UL) data in a wireless communication system that supports a low latency system, the method comprising:

  • receiving, from a base station, a first UL grant for initial datatransmitting, to the base station, the initial data based on the first UL grant;

    generating a transport block related to a retransmission of the initial data;

    receiving, from the base station, a negative acknowledgement (NACK) for the initial data and a second UL grant,wherein the second UL grant includes a position of a physical resource for the transport block;

    mapping the transport block to the position of the physical resource based on the second UL grant; and

    transmitting, to the base station, the transport block on the physical resource.

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