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SYSTEMS AND METHODS FOR SUPPORTING ASYNCHRONOUS UPLINK HARQ AND MULTIPLE SIMULTANEOUS TRANSMISSIONS

  • US 20180270807A1
  • Filed: 12/22/2017
  • Published: 09/20/2018
  • Est. Priority Date: 03/20/2017
  • Status: Active Grant
First Claim
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1. A method for uplink data transmission, the method performed by a user equipment (UE), and the method comprising:

  • transmitting, to a base station, a first grant free uplink data transmission including a first transport block, wherein the first transport block is associated with a first HARQ process, wherein the first grant-free uplink data transmission includes a first reference signal sequence, and wherein the first grant-free uplink data transmission is sent using first time-frequency resources in an uplink subframe;

    transmitting, to the base station, a second grant free uplink data transmission including a second transport block, wherein the second transport block is associated with a second HARQ process, wherein the second grant free uplink data transmission includes a second reference signal sequence, and wherein the second grant free uplink data transmission is sent using second time-frequency resources in the uplink subframe;

    decoding first feedback and second feedback received from the base station in a downlink acknowledgement channel, the first feedback representing a first ACK or first NACK for the first transport block, and the second feedback representing a second ACK or a second NACK for the second transport block;

    wherein at least one of the first time-frequency resources and first reference signal sequence identifies the first UE and the first HARQ process, and wherein at least one of the second time-frequency resources and the second reference signal sequence identifies the second UE and the second HARQ process.

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