JP7062597B2 - 強化型fd-mimoのためのチャネル共分散フィードバック - Google Patents

強化型fd-mimoのためのチャネル共分散フィードバック Download PDF

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JP7062597B2
JP7062597B2 JP2018550561A JP2018550561A JP7062597B2 JP 7062597 B2 JP7062597 B2 JP 7062597B2 JP 2018550561 A JP2018550561 A JP 2018550561A JP 2018550561 A JP2018550561 A JP 2018550561A JP 7062597 B2 JP7062597 B2 JP 7062597B2
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csi
spatial covariance
vectors
report
base station
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JP2019518348A (ja
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ボ・チェン
チャオ・ウェイ
リアンミン・ウ
ネン・ワン
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クアルコム,インコーポレイテッド
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413MIMO systems
    • H04B7/0417Feedback systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413MIMO systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity 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
    • H04B7/0615Diversity 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
    • H04B7/0619Diversity 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
    • H04B7/0621Feedback content
    • H04B7/0626Channel coefficients, e.g. channel state information [CSI]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity 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
    • H04B7/0615Diversity 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
    • H04B7/0619Diversity 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
    • H04B7/0621Feedback content
    • H04B7/063Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/08Testing, supervising or monitoring using real traffic
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity 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
    • H04B7/0615Diversity 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
    • H04B7/0619Diversity 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
    • H04B7/0636Feedback format
    • H04B7/0645Variable feedback

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
JP2018550561A 2016-03-31 2017-02-17 強化型fd-mimoのためのチャネル共分散フィードバック Active JP7062597B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CNPCT/CN2016/078179 2016-03-31
PCT/CN2016/078179 WO2017166219A1 (en) 2016-03-31 2016-03-31 Channel covariance feedback for enhanced fd-mimo
PCT/CN2017/073872 WO2017166940A1 (en) 2016-03-31 2017-02-17 Channel covariance feedback for enhanced fd-mimo

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JP2019518348A JP2019518348A (ja) 2019-06-27
JP2019518348A5 JP2019518348A5 (enExample) 2020-03-12
JP7062597B2 true JP7062597B2 (ja) 2022-05-06

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AU (1) AU2017240856B2 (enExample)
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Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017171485A1 (ko) * 2016-03-31 2017-10-05 엘지전자 주식회사 무선 통신 시스템에서 dm-rs 기반 하향링크 전송을 위한 피드백 정보 송신 방법 및 이를 위한 장치
WO2017188693A1 (ko) * 2016-04-25 2017-11-02 엘지전자 주식회사 다중 안테나 무선 통신 시스템에서 채널 상태 정보 송수신 방법 및 이를 위한 장치
WO2018084622A1 (ko) * 2016-11-03 2018-05-11 엘지전자 주식회사 무선 통신 시스템에서 채널 상태 정보 송수신 방법 및 이를 위한 장치
CN109787727B (zh) * 2017-11-13 2021-08-27 上海朗帛通信技术有限公司 一种用于无线通信的用户设备、基站中的方法和装置
WO2019103454A1 (ko) * 2017-11-21 2019-05-31 엘지전자 주식회사 피드백 정보를 전송하는 방법 및 이를 위한 단말
WO2019142057A1 (en) * 2018-01-19 2019-07-25 Lenovo (Singapore) Pte. Ltd. Channel compression matrix parameters
CN109314563B (zh) * 2018-02-24 2021-08-31 香港应用科技研究院有限公司 用于确定mimo无线通信系统中的csi的方法和装置
EP3782295A1 (en) * 2018-04-16 2021-02-24 Nokia Solutions and Networks Oy Method and device for long term beamforming
US10348386B1 (en) * 2018-08-09 2019-07-09 At&T Intellectual Property I, L.P. Facilitation of user equipment specific compression of beamforming coefficients for fronthaul links for 5G or other next generation network
CN113316909A (zh) * 2018-12-05 2021-08-27 瑞典爱立信有限公司 用于获得ue特定的csi的可扩展方法
CN113708810B (zh) * 2018-12-17 2022-11-01 华为技术有限公司 一种通信方法及设备
WO2020143446A1 (zh) 2019-01-11 2020-07-16 电信科学技术研究院有限公司 一种信道状态信息发送及接收方法、终端设备和网络设备
CN111435851B (zh) * 2019-01-11 2021-06-15 大唐移动通信设备有限公司 一种信道状态信息发送及接收方法、终端设备和网络设备
US12224828B2 (en) 2019-02-14 2025-02-11 Apple Inc. Method of type II CSI reporting for multiple spatial layers
KR102541152B1 (ko) * 2019-02-26 2023-06-13 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 코드북을 피드백하는 방법, 단말 장치 및 네트워크 장치
US11277184B2 (en) 2019-02-26 2022-03-15 Samsung Electronics Co., Ltd. Method and apparatus for high rand CSI reporting in wireless communications systems
CN111726154B (zh) * 2019-03-21 2022-04-01 大唐移动通信设备有限公司 一种信道状态信息上报的方法和设备
CN111800172B (zh) * 2019-04-09 2022-02-25 华为技术有限公司 一种通信方法及装置
US11290167B2 (en) * 2019-04-19 2022-03-29 Samsung Electronics Co., Ltd. Frequency division duplex channel state information acquisition based on Kronecker product
CN111934734B (zh) * 2019-05-13 2022-02-22 大唐移动通信设备有限公司 Csi上报方法、csi接收方法、终端和网络侧设备
US10979120B2 (en) * 2019-05-30 2021-04-13 Cypress Semiconductor Corporation Method for optimizing channel sounding feedback in MIMO systems
EP3984141A4 (en) 2019-06-14 2022-11-02 NEC Corporation METHOD, DEVICE AND COMPUTER READABLE MEDIA FOR TRANSMISSION OF UPLINK CONTROL INFORMATION
CN110855338B (zh) * 2019-10-28 2021-04-23 东南大学 基于两层预编码的fd-mimo下行自适应传输方法
EP4094374B1 (en) 2020-01-23 2024-10-30 Qualcomm Incorporated Precoding matrix indicator feedback for multiple transmission hypotheses
US11464017B1 (en) 2021-03-25 2022-10-04 At&T Intellectual Property I, L.P. Facilitation of beamforming utilizing interpolation for 5G or other next generation network
US12489502B2 (en) 2021-08-25 2025-12-02 Mediatek Inc. Method and user equipment for determining precoder of MIMO system
WO2023147681A1 (en) * 2022-02-01 2023-08-10 Qualcomm Incorporated Time domain basis reporting for channel state information
CN117478182A (zh) * 2022-07-30 2024-01-30 华为技术有限公司 信道状态信息的上报方法及通信装置
US11985009B2 (en) * 2022-09-12 2024-05-14 Nokia Solutions And Networks Oy Determining covariance using a lossy compression method
WO2025176285A1 (en) * 2024-02-20 2025-08-28 Telefonaktiebolaget Lm Ericsson (Publ) Handling coefficients of co-variability of antenna elements
US12363579B1 (en) * 2024-08-31 2025-07-15 Tp-Link Systems Inc. Method and communication apparatus for CSI feedback, and computer-readable storage medium

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015513257A (ja) 2012-02-23 2015-04-30 エレクトロニクス アンド テレコミュニケーションズ リサーチ インスチチュートElectronics And Telecommunications Research Institute 大規模アンテナシステムにおける多重入力多重出力通信方法

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8582672B2 (en) * 2009-02-12 2013-11-12 Futurewei Technologies, Inc. System and method for wireless communications using spatial multiplexing with incomplete channel information
US9319251B2 (en) * 2010-01-04 2016-04-19 Samsung Electronics Co., Ltd. Multiple-input multiple-output (MIMO) communication system using a codebook and method of designing the codebook
US8665930B2 (en) * 2010-02-17 2014-03-04 Blackberry Limited System and method for channel status information feedback in a wireless communications system that utilizes multiple-input multiple-output (MIMO) transmission
KR20110138742A (ko) * 2010-06-21 2011-12-28 주식회사 팬택 장치의 채널정보 전송방법, 그 장치, 기지국, 그 기지국의 전송방법
US8843150B2 (en) * 2011-12-28 2014-09-23 Samsung Electronics Co., Ltd. Beamforming method and apparatus for acquiring transmission beam diversity in a wireless communication system
US9681425B2 (en) * 2012-05-11 2017-06-13 Qualcomm Incorporated Rank-specific feedback for improved MIMO support
US9918240B2 (en) * 2012-09-28 2018-03-13 Interdigital Patent Holdings, Inc. Wireless communication using multi-dimensional antenna configuration
US8976884B2 (en) * 2012-12-20 2015-03-10 Google Technology Holdings LLC Method and apparatus for antenna array channel feedback
US9281881B2 (en) * 2013-02-12 2016-03-08 Texas Instruments Incorporated 4TX codebook enhancement in LTE
US9106280B2 (en) * 2013-04-15 2015-08-11 Broadcom Corporation Pilot design for massive MIMO communication
US9713026B2 (en) 2013-05-17 2017-07-18 Qualcomm Incorporated Channel state information (CSI) measurement and reporting for enhanced interference management for traffic adaptation (eIMTA) in LTE
WO2014190903A1 (en) 2013-05-31 2014-12-04 Qualcomm Incorporated Linear precoding in full-dimensional mimo systems and dynamic vertical sectorization
CN105247809B (zh) * 2013-05-31 2019-06-21 高通股份有限公司 全维mimo系统中的线性预编码和动态垂直扇区化
CN104620527B (zh) * 2013-08-08 2018-06-19 华为技术有限公司 确定预编码矩阵指示的方法、接收设备和发送设备
KR102258289B1 (ko) * 2014-05-22 2021-05-31 삼성전자 주식회사 이차원 배열 안테나를 사용하는 이동통신 시스템에서의 채널 피드백의 생성 및 전송 방법 및 장치
CN104202276B (zh) 2014-07-16 2018-06-01 中兴通讯股份有限公司 信道信息的量化反馈、数据的预编码方法及装置
US20160072562A1 (en) * 2014-09-10 2016-03-10 Samsung Electronics Co., Ltd. Channel state information reporting with basis expansion for advanced wireless communications systems
US9654195B2 (en) * 2014-11-17 2017-05-16 Samsung Electronics Co., Ltd. Methods to calculate linear combination pre-coders for MIMO wireless communication systems
US9893777B2 (en) * 2014-11-17 2018-02-13 Samsung Electronics Co., Ltd. Method and apparatus for precoding channel state information reference signal
EP3269046A4 (en) * 2015-03-13 2018-04-25 Samsung Electronics Co., Ltd. Advanced feedback and reference signal transmissions for mimo wireless communication systems
US10164747B2 (en) * 2015-05-29 2018-12-25 Samsung Electronics Co., Ltd. Method and apparatus for operating MIMO measurement reference signals and feedback
US10476575B2 (en) * 2015-07-23 2019-11-12 Lg Electronics Inc. Codebook-based signal transmission/reception method in multi-antenna wireless communication system, and device for same
EP3363123B1 (en) * 2015-10-12 2019-12-04 Telefonaktiebolaget LM Ericsson (PUBL) A wireless device, a network node and methods therein for determining channel state measurements in a wireless communications network
US10763925B2 (en) * 2015-11-11 2020-09-01 Samsung Electronics Co., Ltd. Method and apparatus for reduced feedback MIMO
EP3399661A4 (en) * 2015-12-31 2019-09-04 LG Electronics Inc. -1- METHOD FOR CSI REPORTING IN A WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR
US10637546B2 (en) * 2016-02-23 2020-04-28 Lg Electronics Inc. Method for transceiving channel state information and apparatus therefor in multiple-antenna wireless communication system
US10411868B2 (en) * 2016-02-24 2019-09-10 Samsung Electronics Co., Ltd. Method and apparatus for channel state information (CSI) reporting
US10129906B2 (en) * 2016-03-01 2018-11-13 Samsung Electronics Co., Ltd. Partial port hybrid CSI feedback for MIMO wireless communication systems
US10056956B2 (en) * 2016-03-24 2018-08-21 Samsung Electronics Co., Ltd. Precoder codebook for CSI reporting in advanced wireless communication systems
WO2017161590A1 (en) * 2016-03-25 2017-09-28 Qualcomm Incorporated Enhanced hybrid csi-rs for fd-mimo
US10009088B2 (en) * 2016-03-28 2018-06-26 Samsung Electronics Co., Ltd. Linear combination PMI codebook based CSI reporting in advanced wireless communication systems

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015513257A (ja) 2012-02-23 2015-04-30 エレクトロニクス アンド テレコミュニケーションズ リサーチ インスチチュートElectronics And Telecommunications Research Institute 大規模アンテナシステムにおける多重入力多重出力通信方法

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
CATT,Beam selection for CSI-RS beamforming[online],3GPP TSG RAN WG1 Meeting #80bis R1-151365,インターネット<URL:http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_80b/Docs/R1-151365.zip>,2015年04月11日
Motorola,Spatial Correlation Feedback to Support LTE-A MU-MIMO and CoMP: System Operation and Performance Results[online],3GPP TSG-RAN WG1 #57 R1-092221,インターネット<URL:http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_57/Docs/R1-092221.zip>,2009年05月07日
Samsung,CSI test case design for Class A[online],3GPP TSG-RAN WG4 Meeting #78 R4-160072,インターネット<URL:http://www.3gpp.org/ftp/tsg_ran/WG4_Radio/TSGR4_78/Docs/R4-160072.zip>,2016年02月04日
Samsung,Draft CR on mismatched FD-MIMO configuration fields between 36.213 and 36.331[online],3GPP TSG RAN WG1 Meeting #84 R1-160522,インターネット<URL:http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_84/Docs/R1-160522.zip>,2016年02月05日
Samsung,Handling collision between nonPrecoded type and beamformed type CSI reports[online],3GPP TSG RAN WG1 Meeting #84 R1-160534,インターネット<URL:http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_84/Docs/R1-160534.zip>,2016年02月05日
ZTE,Discussion on CSI Process and CSI-RS Resource Definitions[online],3GPP TSG RAN WG1 Meeting #82 R1-154378,インターネット<URL:http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_82/Docs/R1-154378.zip>,2015年08月15日

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US20190058560A1 (en) 2019-02-21
JP2019518348A (ja) 2019-06-27
EP3437208A4 (en) 2019-10-23
AU2017240856A1 (en) 2018-09-06
WO2017166219A1 (en) 2017-10-05
AU2017240856B2 (en) 2021-09-16
BR112018069917A2 (pt) 2019-02-05
EP3437208A1 (en) 2019-02-06
CA3016260A1 (en) 2017-10-05
US11632208B2 (en) 2023-04-18
WO2017166940A1 (en) 2017-10-05
CN109314559A (zh) 2019-02-05
CN109314559B (zh) 2021-11-26

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