CA2873611A1 - Radio communication system, radio base station apparatus and radio communication method - Google Patents

Radio communication system, radio base station apparatus and radio communication method Download PDF

Info

Publication number
CA2873611A1
CA2873611A1 CA2873611A CA2873611A CA2873611A1 CA 2873611 A1 CA2873611 A1 CA 2873611A1 CA 2873611 A CA2873611 A CA 2873611A CA 2873611 A CA2873611 A CA 2873611A CA 2873611 A1 CA2873611 A1 CA 2873611A1
Authority
CA
Canada
Prior art keywords
csi
base station
radio base
information
user terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA2873611A
Other languages
English (en)
French (fr)
Inventor
Satoshi Nagata
Xiang Yun
Lan Chen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Docomo Inc
Original Assignee
NTT Docomo Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NTT Docomo Inc filed Critical NTT Docomo Inc
Publication of CA2873611A1 publication Critical patent/CA2873611A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
CA2873611A 2012-05-31 2013-04-26 Radio communication system, radio base station apparatus and radio communication method Abandoned CA2873611A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2012-124571 2012-05-31
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
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

Publications (1)

Publication Number Publication Date
CA2873611A1 true CA2873611A1 (en) 2013-12-05

Family

ID=49673037

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2873611A Abandoned CA2873611A1 (en) 2012-05-31 2013-04-26 Radio communication system, radio base station apparatus and radio communication method

Country Status (6)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3132633A4 (en) * 2014-04-16 2017-11-29 LG Electronics Inc. Method and apparatus for processing aperiodic channel state information in wireless communication system
US11553514B2 (en) * 2018-03-22 2023-01-10 Ntt Docomo, Inc. User terminal and radio communication method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN107211412B (zh) * 2015-01-23 2022-05-31 株式会社Ntt都科摩 终端、基站以及无线通信方法
EP3253108A4 (en) * 2015-01-28 2018-08-15 Sharp Kabushiki Kaisha Terminal device, base station device, communication method, and integrated circuit
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
KR102183307B1 (ko) 2016-03-23 2020-11-26 가부시키가이샤 엔티티 도코모 유저단말, 무선기지국 및 무선통신방법
CN109417811B (zh) 2016-06-30 2023-02-17 Lg 电子株式会社 在无线通信系统中报告信道状态信息的方法和装置
CN107872303B (zh) * 2016-09-26 2020-07-28 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
WO2018227558A1 (en) * 2017-06-16 2018-12-20 Qualcomm Incorporated Signaling design for multiple aperiodic csi feedback
WO2018227538A1 (en) * 2017-06-16 2018-12-20 Qualcomm Incorporated Reporting aperiodic csi via pucch
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
CN112335282B (zh) * 2018-06-28 2024-08-13 株式会社Ntt都科摩 用户终端以及无线基站
WO2020029816A1 (en) * 2018-08-10 2020-02-13 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for channel state information reporting
CN120786480A (zh) * 2019-08-23 2025-10-14 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

Family Cites Families (8)

* Cited by examiner, † Cited by third party
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
EP2410785B1 (en) * 2009-03-17 2018-05-09 Huawei Technologies Co., Ltd. Method and device for estimating downlink channel quality
US8614981B2 (en) * 2010-01-29 2013-12-24 Qualcomm Incorporated Reporting of channel information to support coordinated multi-point data transmission
WO2011115421A2 (en) * 2010-03-17 2011-09-22 Lg Electronics Inc. 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
CN107104707B (zh) * 2011-10-31 2021-01-08 三星电子株式会社 通信系统中的反馈方法和设备
US9083479B2 (en) * 2012-05-11 2015-07-14 Intel Corporation Signaling for downlink coordinated multipoint in a wireless communication system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3132633A4 (en) * 2014-04-16 2017-11-29 LG Electronics Inc. Method and apparatus for processing aperiodic channel state information in wireless communication system
US10432289B2 (en) 2014-04-16 2019-10-01 Lg Electronics Inc. Method and apparatus for processing aperiodic channel state information in wireless communication system
US11553514B2 (en) * 2018-03-22 2023-01-10 Ntt Docomo, Inc. User terminal and radio communication method

Also Published As

Publication number Publication date
EP2858407B1 (en) 2021-06-02
US9979454B2 (en) 2018-05-22
CN104380641A (zh) 2015-02-25
EP2858407A1 (en) 2015-04-08
CN104380641B (zh) 2018-05-08
JP2013251698A (ja) 2013-12-12
WO2013179833A1 (ja) 2013-12-05
JP5770682B2 (ja) 2015-08-26
EP2858407A4 (en) 2016-02-17
US20150103774A1 (en) 2015-04-16

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Legal Events

Date Code Title Description
EEER Examination request

Effective date: 20160330

FZDE Discontinued

Effective date: 20190930