Birch, Stewart, Kolasch & Birch LLP
Method for determining valid subframe for non-licensed band in wireless communication system, and apparatus using the method
A method of deriving channel state information in an unlicensed band, which is performed by a user equipment, includes based on a subframe being in a cell on the unlicensed band and all of orthogonal frequency division multiplexing (OFDM) symbols of the subframe being occupied by a base station, and based on a channel state information-reference signal (CSI-RS) resource being in the subframe, considering the subframe as a valid subframe, deriving the channel state information in the valid subframe, and transmitting the channel state information to the base station.
LG ELECTRONICS INC.
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Hanjun Seungmin Seonwook Joonkui
Park Lee Kim Ahn