JP5770682B2 - 無線通信システム、無線基地局装置及び無線通信方法 - Google Patents

無線通信システム、無線基地局装置及び無線通信方法 Download PDF

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Publication number
JP5770682B2
JP5770682B2 JP2012124571A JP2012124571A JP5770682B2 JP 5770682 B2 JP5770682 B2 JP 5770682B2 JP 2012124571 A JP2012124571 A JP 2012124571A JP 2012124571 A JP2012124571 A JP 2012124571A JP 5770682 B2 JP5770682 B2 JP 5770682B2
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Japan
Prior art keywords
csi
information
base station
user terminal
transmission
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JP2012124571A
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English (en)
Japanese (ja)
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JP2013251698A (ja
JP2013251698A5 (enExample
Inventor
聡 永田
聡 永田
シアン ユン
シアン ユン
ラン チン
ラン チン
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NTT Docomo Inc
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NTT Docomo Inc
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Priority to JP2012124571A priority Critical patent/JP5770682B2/ja
Application filed by NTT Docomo Inc filed Critical NTT Docomo Inc
Priority to CN201380028429.5A priority patent/CN104380641B/zh
Priority to EP13796434.2A priority patent/EP2858407B1/en
Priority to CA2873611A priority patent/CA2873611A1/en
Priority to PCT/JP2013/062360 priority patent/WO2013179833A1/ja
Priority to US14/404,084 priority patent/US9979454B2/en
Publication of JP2013251698A publication Critical patent/JP2013251698A/ja
Publication of JP2013251698A5 publication Critical patent/JP2013251698A5/ja
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
JP2012124571A 2012-05-31 2012-05-31 無線通信システム、無線基地局装置及び無線通信方法 Active JP5770682B2 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2012124571A JP5770682B2 (ja) 2012-05-31 2012-05-31 無線通信システム、無線基地局装置及び無線通信方法
EP13796434.2A EP2858407B1 (en) 2012-05-31 2013-04-26 Wireless communication system and wireless communication method
CA2873611A CA2873611A1 (en) 2012-05-31 2013-04-26 Radio communication system, radio base station apparatus and radio communication method
PCT/JP2013/062360 WO2013179833A1 (ja) 2012-05-31 2013-04-26 無線通信システム、無線基地局装置及び無線通信方法
CN201380028429.5A CN104380641B (zh) 2012-05-31 2013-04-26 无线通信系统、无线基站装置以及无线通信方法
US14/404,084 US9979454B2 (en) 2012-05-31 2013-04-26 Radio communication system and method for feeding back a plurality of pieces of channel state information under coordinated multi-point transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012124571A JP5770682B2 (ja) 2012-05-31 2012-05-31 無線通信システム、無線基地局装置及び無線通信方法

Publications (3)

Publication Number Publication Date
JP2013251698A JP2013251698A (ja) 2013-12-12
JP2013251698A5 JP2013251698A5 (enExample) 2014-12-18
JP5770682B2 true JP5770682B2 (ja) 2015-08-26

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JP2012124571A Active JP5770682B2 (ja) 2012-05-31 2012-05-31 無線通信システム、無線基地局装置及び無線通信方法

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Country Link
US (1) US9979454B2 (enExample)
EP (1) EP2858407B1 (enExample)
JP (1) JP5770682B2 (enExample)
CN (1) CN104380641B (enExample)
CA (1) CA2873611A1 (enExample)
WO (1) WO2013179833A1 (enExample)

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JP5918505B2 (ja) * 2011-11-07 2016-05-18 株式会社Ｎｔｔドコモ 無線通信システム、無線基地局装置、ユーザ端末及び無線通信方法
US9485774B2 (en) * 2014-02-28 2016-11-01 Telefonaktiebolaget Lm Ericsson (Publ) Efficient transmission of stand-alone aperiodic CSI reporting for LTE carrier aggregation
KR102354498B1 (ko) * 2014-04-16 2022-01-21 엘지전자 주식회사 무선 통신 시스템에서 비주기적 채널 상태 정보를 처리하는 방법 및 장치
JPWO2016117643A1 (ja) * 2015-01-23 2017-10-26 株式会社Ｎｔｔドコモ ユーザ端末、無線基地局及び無線通信方法
CN107409321A (zh) * 2015-01-28 2017-11-28 夏普株式会社 终端装置、基站装置、通信方法以及集成电路
WO2016184335A1 (zh) * 2015-05-21 2016-11-24 电信科学技术研究院 一种信道状态信息反馈方法和终端
CN106301509B (zh) 2015-05-21 2020-01-17 电信科学技术研究院 一种信道状态信息反馈方法和终端
US9999052B1 (en) * 2015-09-02 2018-06-12 Sprint Spectrum L.P. Selecting primary and secondary component carrier for carrier aggregation based on carrier group delay variation, insertion loss, and other carrier attributes
JP6165276B2 (ja) * 2016-01-08 2017-07-19 株式会社Ｎｔｔドコモ ユーザ端末、無線基地局及び無線通信方法
AU2017237887B2 (en) * 2016-03-23 2021-08-12 Ntt Docomo, Inc. User terminal, radio base station and radio communication method
KR102099181B1 (ko) * 2016-06-30 2020-04-09 엘지전자 주식회사 비면허 대역을 지원하는 무선 통신 시스템에서 채널 상태 정보 보고 방법 및 이를 지원하는 장치
CN112039643B (zh) * 2016-09-26 2022-04-12 华为技术有限公司 传输反馈信息的方法和装置
US10492184B2 (en) * 2016-12-09 2019-11-26 Samsung Electronics Co., Ltd. Multiplexing control information in a physical uplink data channel
WO2018227538A1 (en) 2017-06-16 2018-12-20 Qualcomm Incorporated Reporting aperiodic csi via pucch
WO2018227558A1 (en) * 2017-06-16 2018-12-20 Qualcomm Incorporated Signaling design for multiple aperiodic csi feedback
CN109922531B (zh) * 2017-12-13 2021-03-09 电信科学技术研究院 一种传输方法、终端及基站
PT3771275T (pt) * 2018-03-22 2024-03-12 Ntt Docomo Inc Relatório csi aperiódico
WO2020003443A1 (ja) * 2018-06-28 2020-01-02 株式会社Ｎｔｔドコモ ユーザ端末及び無線基地局
WO2020029816A1 (en) * 2018-08-10 2020-02-13 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for channel state information reporting
CN114270930B (zh) * 2019-08-23 2025-08-26 株式会社Ntt都科摩 终端以及无线通信方法
US11071159B1 (en) 2020-04-07 2021-07-20 Sprint Spectrum L.P. Use of group delay variation as a basis to control configuration of dual-connectivity service
US11363513B1 (en) 2020-12-16 2022-06-14 Sprint Spectrum L.P. Proactive control of UE service based on quality of an access node's RF-circuitry as to frequency bands on which the access node operates in coverage zones through which the UE is predicted to move
US20260172191A1 (en) * 2021-11-05 2026-06-18 Interdigital Patent Holdings, Inc. Data driven sounding feedback reports for wlan systems

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
US8274951B2 (en) * 2009-03-17 2012-09-25 Samsung Electronics Co., Ltd. System and method for dynamic cell selection and resource mapping for CoMP joint transmission
CN102986269B (zh) * 2009-03-17 2016-03-30 华为技术有限公司 一种估计下行信道质量的方法和装置
US8614981B2 (en) * 2010-01-29 2013-12-24 Qualcomm Incorporated Reporting of channel information to support coordinated multi-point data transmission
AU2011227860B2 (en) * 2010-03-17 2015-02-12 Qualcomm Incorporated Method and apparatus for providing channel state information-reference signal (CSI-RS) configuration information in a wireless communication system supporting multiple antennas
JP5005082B2 (ja) * 2010-10-04 2012-08-22 株式会社エヌ・ティ・ティ・ドコモ 基地局装置、移動端末装置及び通信制御方法
US8478190B2 (en) * 2011-05-02 2013-07-02 Motorola Mobility Llc Multi-cell coordinated transmissions in wireless communication network
CA2850164C (en) * 2011-10-31 2020-06-23 Samsung Electronic Co., Ltd. Feedback method and apparatus for cooperative multi-point communication in communication system
US9083479B2 (en) * 2012-05-11 2015-07-14 Intel Corporation Signaling for downlink coordinated multipoint in a wireless communication system

Also Published As

Publication number Publication date
EP2858407B1 (en) 2021-06-02
CN104380641B (zh) 2018-05-08
EP2858407A1 (en) 2015-04-08
JP2013251698A (ja) 2013-12-12
US9979454B2 (en) 2018-05-22
WO2013179833A1 (ja) 2013-12-05
EP2858407A4 (en) 2016-02-17
CA2873611A1 (en) 2013-12-05
CN104380641A (zh) 2015-02-25
US20150103774A1 (en) 2015-04-16

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