User terminal, radio base station and radio communication method
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United States of America Patent
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Nov 14, 2017
Issued Date -
N/A
app pub date -
Apr 17, 2014
filing date -
May 27, 2013
priority date (Note) -
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Abstract
The present invention is designed to feed back feedback signals such as delivery acknowledgement signals properly even when the DL/UL configuration is reconfigured in TDD. A user terminal communicates, in time division duplexing, with a radio base station that reconfigures the DL/UL configuration, and has a judging section that judges a delivery acknowledgement in response to each DL subframe, and a feedback control section that allocates a delivery acknowledgement signal in response to each DL subframe to a UL subframe and sends feedback, and, when the number of DL subframes that correspond to a UL subframe is greater than a predetermined value in a radio frame after the reconfiguration of the DL/UL configuration, the feedback control section bundles at least part of the delivery acknowledgement signals for a plurality of DL subframes corresponding to the UL subframe, and sends feedback.
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