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1. (WO2015115311) USER DEVICE AND METHOD

Pub. No.:    WO/2015/115311    International Application No.:    PCT/JP2015/051764
Publication Date: Fri Aug 07 01:59:59 CEST 2015 International Filing Date: Sat Jan 24 00:59:59 CET 2015
IPC: H04W 72/04
H04W 28/06
Applicants: NTT DOCOMO, INC.
株式会社NTTドコモ
Inventors: UCHINO, Tooru
内野 徹
TAKEDA, Kazuki
武田 一樹
NAGATA, Satoshi
永田 聡
LIU, Liu
リュー リュー
MU, Qin
ムー チン
JIANG, Huiling
ジャン ホイリン
Title: USER DEVICE AND METHOD
Abstract:
Disclosed is a technology for determining, in Carrier Aggregation wherein both FDD cells and TDD cells are used, downlink control information which is used in each cell. An embodiment of the present invention relates to a user device, comprising: a transceiver unit which transmits and receives wireless channels to and from base stations according to Frequency Division Duplex (FDD) and Time Division Duplex (TDD) via a plurality of cells which are set by Carrier Aggregation; a cell management unit which manages the plurality of cells; and a communication control unit which assesses whether the duplex communication method applied to a primary cell among the plurality of cells is FDD or TDD and receives and demodulates downlink control information following the determined duplex communication method with regard to each of the cells whereupon the Carrier Aggregation is executed.