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Selection of acknowledgment timing in wireless communications

  • US 10,079,669 B2
  • Filed: 12/21/2017
  • Issued: 09/18/2018
  • Est. Priority Date: 11/04/2011
  • Status: Active Grant
First Claim
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1. A method comprising:

  • identifying a reference time division duplex (TDD) configuration based on a first TDD configuration of a primary serving cell (PCell) and a second TDD configuration of a secondary serving cell (SCell); and

    transmitting a hybrid automatic repeat request acknowledgement (HARQ-ACK) signal associated with downlink data received through the SCell according to a HARQ timing of the reference TDD configuration, wherein;

    only HARQ-ACK signals associated with the downlink data of the SCell are to be transmitted according to the HARQ timing of the reference TDD configuration; and

    HARQ-ACK signals associated with downlink data of the PCell are to be transmitted only according to the HARQ timing of the first TDD configuration.

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