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Method and apparatus for performing contention resolution for contention based PUSCH transmission in wireless communication system

  • US 10,397,952 B2
  • Filed: 05/02/2016
  • Issued: 08/27/2019
  • Est. Priority Date: 04/30/2015
  • Status: Active Grant
First Claim
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1. A method performed by a user equipment (UE) in a wireless communication system, the method comprising:

  • performing a first hybrid automatic repeat request (HARQ) transmission, on a contention based physical uplink shared channel (CB-PUSCH), to a network;

    receiving a UL grant on a physical downlink control channel (PDCCH) from the network,wherein the UL grant includes an identity of the UE;

    determining that contention on the CB-PUSCH is resolved based on the identity of the UE; and

    performing a second HARQ transmission for the first HARQ transmission, on a non-contention PUSCH, to the network based on the UL grant,wherein the CB-PUSCH is a channel for UL data allocated by a pre-configured UL grant which is shared by multiple UEs.

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