Title:
USER DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2015/115311
Kind Code:
A1
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.
Inventors:
UCHINO TOORU (JP)
TAKEDA KAZUKI (JP)
NAGATA SATOSHI (JP)
LIU LIU (CN)
MU QIN (CN)
JIANG HUILING (CN)
TAKEDA KAZUKI (JP)
NAGATA SATOSHI (JP)
LIU LIU (CN)
MU QIN (CN)
JIANG HUILING (CN)
Application Number:
PCT/JP2015/051764
Publication Date:
August 06, 2015
Filing Date:
January 23, 2015
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
International Classes:
H04W72/04; H04W28/06
Domestic Patent References:
| WO2012142123A2 | 2012-10-18 |
Foreign References:
| JP2014016005A | 2014-01-30 |
Other References:
QUALCOMM INCORPORATED: "Procedures for dual connectivity", 3GPP TSG-RAN2#84 R2-134002, XP050736810, Retrieved from the Internet [retrieved on 20150324]
See also references of EP 3101974A4
See also references of EP 3101974A4
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
Tadashige Ito (JP)
Tadashige Ito (JP)
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