Title:
A radio communications system, a user terminal, and a wireless communication method
Document Type and Number:
Japanese Patent JP6019199
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To secure the stable operation of a user terminal even when instructions to transmit uplink signals are given at different transmission timing through a plurality of component carriers.SOLUTION: A user terminal comprises: a reception unit for receiving instructions on transmission timing information on an uplink signal per component carrier given by a radio base station device; and a determination unit that, if the total transmission power of uplink signals to be transmitted simultaneously exceeds the maximum transmission power determined for the user terminal, adjusts such a way that the total transmission power of the uplink signals does not exceed the maximum transmission power or avoids the simultaneous transmission of the uplink signals.SELECTED DRAWING: Figure 5
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Inventors:
Daisuke Nishikawa
Kazuaki Takeda
Satoshi Nagata
Yoshihisa Kishiyama
Toru Uchino
Yuta Sagae
Kazuaki Takeda
Satoshi Nagata
Yoshihisa Kishiyama
Toru Uchino
Yuta Sagae
Application Number:
JP2015212006A
Publication Date:
November 02, 2016
Filing Date:
October 28, 2015
Export Citation:
Assignee:
Ntt docomo, Inc.
International Classes:
H04W72/12; H04W52/34; H04W72/04
Foreign References:
| WO2011083863A1 | ||||
| WO2012060067A1 | ||||
| US20110222444 |
Other References:
LG Electronics,Discussion on Simultaneous Uplink Channel Transmission in Rel-11,3GPP TSG-RAN WG1 Meeting #66bis R1-113187,[online],2011年10月 4日,p1-p4,[検索日 2015.09.18],URL,http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_66b/Docs/R1-113187.zip
ZTE,Multiple TA scenario analysis,3GPP TSG-RAN WG2 Meeting #73bis R2-111909 [online],2011年 4月 4日,pages 1-5,[検索日 2016.09.06],URL,http://www.3gpp.org/ftp/tsg_ran/WG2_RL2/TSGR2_73bis/Docs/R2-111909.zip
Alcatel-Lucent, Alcatel-Lucent Shanghai Bell,Simultaneous transmissions of RACH and PUCCH/PUSCH/SRS,3GPP TSG-RAN WG2 Meeting #76 R2-116184,[online],2011年11月 8日,p1-p4,[検索日 2015.09.18] ※掲載日の時差を考慮すると日本国標準時の2011年11月 8日に公開,URL,http://www.3gpp.org/ftp/tsg_ran/WG2_RL2/TSGR2_76/Docs/R2-116184.zip
Renesas Mobile Europe Ltd.,RACH procedure on SCell,3GPP TSG-RAN WG2 Meeting #76 R2-115782,[online],2011年11月 7日,p1-p3,[検索日 2015.09.18] ※掲載日の時差を考慮すると日本国標準時の2011年11月 8日に公開,URL,http://www.3gpp.org/ftp/tsg_ran/WG2_RL2/TSGR2_76/Docs/R2-115782.zip
CATT,Simultaneous transmission of multiple uplink channels in LTE-A Rel-11,3GPP TSG-RAN WG1 Meeting #67 R1-113721,[online],2011年11月 8日,p1-p3,[検索日 2015.09.18] ※掲載日の時差を考慮すると日本国標準時の2011年11月 9日に公開,URL,http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_67/Docs/R1-113721.zip
ZTE,Multiple TA scenario analysis,3GPP TSG-RAN WG2 Meeting #73bis R2-111909 [online],2011年 4月 4日,pages 1-5,[検索日 2016.09.06],URL,http://www.3gpp.org/ftp/tsg_ran/WG2_RL2/TSGR2_73bis/Docs/R2-111909.zip
Alcatel-Lucent, Alcatel-Lucent Shanghai Bell,Simultaneous transmissions of RACH and PUCCH/PUSCH/SRS,3GPP TSG-RAN WG2 Meeting #76 R2-116184,[online],2011年11月 8日,p1-p4,[検索日 2015.09.18] ※掲載日の時差を考慮すると日本国標準時の2011年11月 8日に公開,URL,http://www.3gpp.org/ftp/tsg_ran/WG2_RL2/TSGR2_76/Docs/R2-116184.zip
Renesas Mobile Europe Ltd.,RACH procedure on SCell,3GPP TSG-RAN WG2 Meeting #76 R2-115782,[online],2011年11月 7日,p1-p3,[検索日 2015.09.18] ※掲載日の時差を考慮すると日本国標準時の2011年11月 8日に公開,URL,http://www.3gpp.org/ftp/tsg_ran/WG2_RL2/TSGR2_76/Docs/R2-115782.zip
CATT,Simultaneous transmission of multiple uplink channels in LTE-A Rel-11,3GPP TSG-RAN WG1 Meeting #67 R1-113721,[online],2011年11月 8日,p1-p3,[検索日 2015.09.18] ※掲載日の時差を考慮すると日本国標準時の2011年11月 9日に公開,URL,http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_67/Docs/R1-113721.zip
Attorney, Agent or Firm:
Hiroyoshi Aoki
Amada Masayuki
Moriya Yoshitaka
Amada Masayuki
Moriya Yoshitaka