Method for transmitting HARQ-ACK information in multi-cell environment, and apparatus therefor
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United States of America Patent
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Aug 27, 2019
Grant Date -
Jan 25, 2018
app pub date -
Jan 5, 2016
filing date -
Jan 5, 2015
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Abstract
The present invention relates to a wireless communication system. Specifically, the present invention relates to a method for transmitting control information, and an apparatus therefor, the method comprising: a step of detecting one or more PDSCHs on a plurality of cells, wherein the plurality of cells are divided into a first cell set including a PCell and a first SCell, and a second cell set including one or more second SCells; and a step of transmitting, as feedback for the one or more PDSCHs, HARQ-ACK information through a PUCCH, wherein if the one or more PDSCHs are detected only on the first cell set, the HARQ-ACK information includes HARQ-ACK responses only for the first cell set, and if the one or more PDSCHs are detected at least on the second cell set, the HARQ-ACK information includes HARQ-ACK responses for both the first and second cell sets.
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