Title:
USER TERMINAL, WIRELESS BASE STATION, WIRELESS COMMUNICATION METHOD AND WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2015/170725
Kind Code:
A1
Abstract:
The purpose of the present invention is to suppress a drop in uplink throughput in a case where a user terminal connects to a plurality of wireless base stations. A user terminal (20) of one embodiment of the present invention is connected to a plurality of wireless base stations (10) that include a first wireless base station and a second wireless base station, and has a transmission unit (203) that transmits a plurality of types of upstream signals to each of the wireless base stations and a control unit (401) that controls the transmission power of the upstream signals, on the basis of upstream signal priorities to each wireless base station. The control unit sets the priority to the first wireless base station higher than the priority to the second wireless base station, for each upstream signal of the same type.
Inventors:
TAKEDA KAZUKI (JP)
LIU LIU (CN)
WANG LIHUI (CN)
JIANG HUILING (CN)
LIU LIU (CN)
WANG LIHUI (CN)
JIANG HUILING (CN)
Application Number:
PCT/JP2015/063243
Publication Date:
November 12, 2015
Filing Date:
May 08, 2015
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
International Classes:
H04W52/14; H04W52/30; H04W72/04
Other References:
HUAWEI ET AL.: "Uplink Power allocation in Dual connectivity", 3GPP TSG RAN WG1 MEETING #76BIS RL-141134, 22 March 2014 (2014-03-22), pages 1 - 4, XP050786809
TEXAS INSTRUMENTS: "UL Power Control Considerations for Dual Connectivity", 3GPP TSG RAN WG1 #76BIS RL-141604, 22 March 2014 (2014-03-22), pages 1 - 3, XP050787271
ERICSSON: "RAN4 impacts of dual connectivity", 3GPP TSG-RAN WG4 MEETING #70BIS R4-142082, 9 April 2014 (2014-04-09), pages 1 - 3, XP050797149
NTT DOCOMO: "Transmit power control for dual connectivity", 3GPP TSG RAN WG1 MEETING #76BIS RL-141469, 22 March 2014 (2014-03-22), pages 1 - 8, XP050787138
NTT DOCOMO: "Outcome of the email discussion [76b-08] on TPC aspects of Dual Connectivity", 3GPP TSG RAN WG1 MEETING #76BIS RL-141899, 6 May 2014 (2014-05-06), pages 1 - 30, XP050814250
See also references of EP 3142427A4
TEXAS INSTRUMENTS: "UL Power Control Considerations for Dual Connectivity", 3GPP TSG RAN WG1 #76BIS RL-141604, 22 March 2014 (2014-03-22), pages 1 - 3, XP050787271
ERICSSON: "RAN4 impacts of dual connectivity", 3GPP TSG-RAN WG4 MEETING #70BIS R4-142082, 9 April 2014 (2014-04-09), pages 1 - 3, XP050797149
NTT DOCOMO: "Transmit power control for dual connectivity", 3GPP TSG RAN WG1 MEETING #76BIS RL-141469, 22 March 2014 (2014-03-22), pages 1 - 8, XP050787138
NTT DOCOMO: "Outcome of the email discussion [76b-08] on TPC aspects of Dual Connectivity", 3GPP TSG RAN WG1 MEETING #76BIS RL-141899, 6 May 2014 (2014-05-06), pages 1 - 30, XP050814250
See also references of EP 3142427A4
Attorney, Agent or Firm:
AOKI, Hiroyoshi et al. (JP)
Hiroyoshi Aoki (JP)
Hiroyoshi Aoki (JP)
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