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Title:
USER DEVICE AND TRANSMISSION CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2014/091989
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing technology for simultaneously transmitting an uplink control channel using a plurality of cells in a wireless communication system in which transmission of an uplink control channel in a secondary cell is supported. One embodiment of the present invention relates to a user device comprising: a transceiver unit that sends and receives a base station and a wireless channel via a plurality of cells that are set by carrier aggregation; a simultaneous transmission advisability determination unit that, in response to the occurrence of an event in which an uplink control channel is simultaneously transmitted using the plurality of cells, determines whether it is possible to simultaneously transmit the uplink control channel using the plurality of cells; and a transmission control unit that instructs the transceiver unit to simultaneously transmit the uplink control channel using the plurality of cells when it is possible to simultaneously transmit the uplink control channel using the plurality of cells, and controls the transmission of the uplink control channel in accordance with transmission priority when it is not possible to simultaneously transmit the uplink control channel using the plurality of cells.

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WO/2014/007548METHOD AND DEVICE FOR ALLOCATING RESOURCE FOR UPLINK CONTROL CHANNEL IN WIRELESS COMMUNICATION SYSTEM
WO/2015/141747USER TERMINAL, WIRELESS BASE STATION, WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD
WO/2024/020822UPLINK POWER CONTROL METHOD AND APPARATUS, DEVICE, AND STORAGE MEDIUM
Inventors:
UCHINO TOORU (JP)
TAKAHASHI HIDEAKI (JP)
SAGAE YUTA (JP)
TAKEDA KAZUAKI (JP)
Application Number:
PCT/JP2013/082605
Publication Date:
June 19, 2014
Filing Date:
December 04, 2013
Export Citation:
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Assignee:
NTT DOCOMO INC (JP)
International Classes:
H04W72/04; H04W72/12
Domestic Patent References:
WO2012024181A12012-02-23
Foreign References:
JP2012531114A2012-12-06
Other References:
See also references of EP 2934055A4
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
Tadashige Ito (JP)
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