Terminal device, base station device, communication system, control method, and integrated circuit
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United States of America Patent
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Jan 30, 2018
Issued Date -
N/A
app pub date -
Mar 5, 2015
filing date -
Mar 6, 2014
priority date (Note) -
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Abstract
In a terminal device that uses a plurality of cells, the plurality of cells are grouped into a cell group for a first base station device and a cell group for a second base station device, and processing for activation/deactivation of the plurality of cells is performed on a cell in the cell group that receive a control element indicating the activation/deactivation, and in a case where the cell group for the second base station is added, a power headroom indicating capacity available for transmit power in the plurality of cells is determined as being triggered, and power headrooms of the plurality of cells that are activated are reported.
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