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Selection of acknowledgment timing in wireless communications

  • US 9,762,375 B2
  • Filed: 12/20/2016
  • Issued: 09/12/2017
  • Est. Priority Date: 11/04/2011
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • means to receive, through a secondary serving cell (SCell), a downlink data that has a second time division duplex (TDD) configuration;

    means to identify a reference TDD configuration based on a first TDD configuration of a primary serving cell (PCell) and the second TDD configuration; and

    means to transmit, via a communication module, acknowledgement information associated with downlink data received through the SCell according to a hybrid automatic repeat request (HARQ) timing of the reference TDD configuration, wherein;

    the acknowledgement information includes HARQ-acknowledgement (HARQ-ACK) signals;

    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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