KR102306700B1 - 향상된 mimo 동작을 위한 시스템들 및 방법들 - Google Patents

향상된 mimo 동작을 위한 시스템들 및 방법들 Download PDF

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KR102306700B1
KR102306700B1 KR1020217005896A KR20217005896A KR102306700B1 KR 102306700 B1 KR102306700 B1 KR 102306700B1 KR 1020217005896 A KR1020217005896 A KR 1020217005896A KR 20217005896 A KR20217005896 A KR 20217005896A KR 102306700 B1 KR102306700 B1 KR 102306700B1
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codebook
wireless communication
communication device
csi
base station
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KR20210024257A (ko
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슈테판 가이르호퍼
피터 가알
완시 첸
하오 수
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퀄컴 인코포레이티드
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    • 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
    • H04B7/0456Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/046Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
    • H04B7/0469Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account taking special antenna structures, e.g. cross polarized antennas into account
    • 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
    • H04B7/0413MIMO systems
    • H04B7/0452Multi-user MIMO 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
    • H04B7/0456Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0478Special codebook structures directed to feedback optimisation
    • 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
    • H04B7/0456Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0478Special codebook structures directed to feedback optimisation
    • H04B7/0481Special codebook structures directed to feedback optimisation using subset selection of codebooks
    • 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
    • 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
    • H04B7/0632Channel quality parameters, e.g. channel quality indicator [CQI]
    • 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
    • H04B7/0639Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • 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
    • H04B7/0686Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • 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
    • H04B7/0686Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H04B7/06952Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
    • 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
    • H04B7/10Polarisation diversity; Directional diversity
    • 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
    • H04B7/0647Variable feedback rate

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
KR1020217005896A 2013-03-08 2014-03-07 향상된 mimo 동작을 위한 시스템들 및 방법들 Active KR102306700B1 (ko)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
US201361775016P 2013-03-08 2013-03-08
US61/775,016 2013-03-08
US201361821867P 2013-05-10 2013-05-10
US61/821,867 2013-05-10
US201361832310P 2013-06-07 2013-06-07
US61/832,310 2013-06-07
US14/199,743 2014-03-06
US14/199,743 US9698887B2 (en) 2013-03-08 2014-03-06 Systems and methods for enhanced MIMO operation
PCT/US2014/021911 WO2014138625A1 (en) 2013-03-08 2014-03-07 Systems and methods for enhanced mimo operation
KR1020157027731A KR102223077B1 (ko) 2013-03-08 2014-03-07 향상된 mimo 동작을 위한 시스템들 및 방법들

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KR20210024257A KR20210024257A (ko) 2021-03-04
KR102306700B1 true KR102306700B1 (ko) 2021-09-28

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KR1020157027731A Active KR102223077B1 (ko) 2013-03-08 2014-03-07 향상된 mimo 동작을 위한 시스템들 및 방법들

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US (2) US9698887B2 (https=)
EP (2) EP4254818A1 (https=)
JP (1) JP6599239B2 (https=)
KR (2) KR102306700B1 (https=)
CN (2) CN110460362B (https=)
WO (1) WO2014138625A1 (https=)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9698887B2 (en) 2013-03-08 2017-07-04 Qualcomm Incorporated Systems and methods for enhanced MIMO operation
CN114257341B (zh) * 2013-05-24 2023-08-29 中兴通讯股份有限公司 信道状态信息反馈方法和终端
WO2014193475A1 (en) * 2013-05-31 2014-12-04 Intel IP Corporation Hybrid digital and analog beamforming for large antenna arrays
US9344167B2 (en) * 2013-06-06 2016-05-17 Broadcom Corporation Codebook subsampling for multi-antenna transmit precoder codebook
US9825676B2 (en) * 2013-08-07 2017-11-21 Nec Corporation Generating precoders for joint transmission from multiple transmission points to multiple user equipments in a downlink coordinated multipoint transmission/reception communications system
CN105450343B (zh) * 2014-08-30 2018-11-06 华为技术有限公司 一种预编码的方法、装置及系统
EP3273717A4 (en) 2015-03-16 2018-11-14 NTT DoCoMo, Inc. User device, base station, and communication method
US10110286B2 (en) * 2015-03-30 2018-10-23 Samsung Electronics Co., Ltd. Method and apparatus for codebook design and signaling
US9806871B2 (en) 2015-05-17 2017-10-31 Imagination Technologies Selective sub-carrier processing
EP3335457B1 (en) * 2015-08-14 2021-03-31 Qualcomm Incorporated Csi feedback signaling for elevation beamforming and fd-mimo
US10666334B2 (en) * 2015-08-18 2020-05-26 Apple Inc. Beamforming training reference signal design
WO2017048048A1 (ko) * 2015-09-14 2017-03-23 엘지전자 주식회사 무선 통신 시스템에서 채널 상태 정보 송수신 방법 및 이를 위한 장치
WO2017086698A1 (ko) * 2015-11-18 2017-05-26 삼성전자 주식회사 이동통신 시스템에서 채널 상태 정보의 송수신 방법 및 장치
US9848384B2 (en) * 2016-02-11 2017-12-19 Imagination Technologies Receiver deactivation based on dynamic measurements
CN107181513B (zh) * 2016-03-11 2021-01-22 电信科学技术研究院 一种信道状态信息的反馈方法及装置
CN107196690B (zh) * 2016-03-11 2019-05-21 电信科学技术研究院 一种反馈信息的传输方法和装置
US10056956B2 (en) 2016-03-24 2018-08-21 Samsung Electronics Co., Ltd. Precoder codebook for CSI reporting in advanced wireless communication systems
DK3455988T3 (da) 2016-05-13 2021-06-21 Ericsson Telefon Ab L M CSI-feedback med flere opløsninger
KR102666941B1 (ko) * 2016-06-16 2024-05-17 삼성전자주식회사 채널 상태 정보를 송수신하기 위한 장치 및 방법
US10340989B2 (en) * 2016-12-09 2019-07-02 Samsung Electronics Co., Ltd. Codebook for CSI reporting in advanced wireless communication system
US10873439B2 (en) * 2016-12-16 2020-12-22 Samsung Electronics Co., Ltd. Method and apparatus for multiplexing channel state information
CN115715010B (zh) * 2017-01-05 2024-11-26 三星电子株式会社 用于终端标识和寻呼信号传输的方法、装置和系统
JP7121022B2 (ja) * 2017-01-31 2022-08-17 エルジー エレクトロニクス インコーポレイティド 無線システムにおけるチャネル状態情報報告方法及びこのための装置
AU2017397007A1 (en) * 2017-02-06 2019-08-29 Telefonaktiebolaget Lm Ericsson (Publ) CSI reporting on small control channels
US10079629B2 (en) * 2017-02-17 2018-09-18 Futurewei Technologies, Inc. Apparatus and method for pre-coding data based on channel statistics
EP4099603B1 (en) 2017-05-05 2023-12-20 Telefonaktiebolaget Lm Ericsson (Publ) Interference measurements and channel state information feedback for multi-user multiple-in multiple-out
JP2020526063A (ja) * 2017-06-08 2020-08-27 クゥアルコム・インコーポレイテッドQualcomm Incorporated Nr−mimoにおけるタイプii csiフィードバックのためのpmiフィードバック
WO2018227577A1 (en) * 2017-06-16 2018-12-20 Zte Corporation Methods and system for evaluating radio channel quality in a multi-beam communication scenario
CN109392119B (zh) * 2017-08-10 2020-02-18 维沃移动通信有限公司 空间特性参数集合指示方法、用户侧设备和网络侧设备
US10547368B2 (en) * 2017-08-30 2020-01-28 Samsung Electronics Co., Ltd. Method and apparatus for codebook subset restriction for CSI reporting in advanced wireless communication systems
US10305568B1 (en) * 2017-12-15 2019-05-28 Motorola Mobility Llc Coding main beam information in CSI codebook
US11283506B2 (en) * 2018-01-07 2022-03-22 Lg Electronics Inc. Method for transmitting and receiving phase tracking reference signal between terminal and base station in wireless communication system, and device for supporting same
US10644828B2 (en) * 2018-02-09 2020-05-05 Samsung Electronics Co., Ltd. Method and apparatus for wideband CSI reporting in an advanced wireless communication system
JP2019176428A (ja) * 2018-03-29 2019-10-10 株式会社Nttドコモ 基地局、及びユーザ装置
KR102322038B1 (ko) 2018-05-17 2021-11-04 한양대학교 산학협력단 채널상태정보를 전송하는 방법 및 그 장치
CN111082838B (zh) 2018-10-18 2022-04-05 慧与发展有限责任合伙企业 自动选择码本
WO2020113547A1 (en) * 2018-12-07 2020-06-11 Qualcomm Incorporated Codebook subset restriction for frequency domain compression
CN114374416B (zh) 2019-01-09 2025-08-22 苹果公司 对增强ii型信道状态信息报告的码本子集限制
US11695462B2 (en) * 2019-01-29 2023-07-04 Qualcomm Incorporated Techniques for coordinated beamforming in millimeter wave systems
US12355536B2 (en) 2020-01-23 2025-07-08 Qualcomm Incorporated Precoding matrix indicator feedback for multiple transmission hypotheses
CN113364494B (zh) * 2021-05-06 2022-08-16 西安交通大学 一种针对硬件失真的irs辅助miso系统性能优化方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120218948A1 (en) 2010-09-02 2012-08-30 Texas Instruments Incorporated Downlink 8 Tx Codebook Sub-Sampling for CSI Feedback
US20120219042A1 (en) 2010-04-30 2012-08-30 Texas Instruments Incorporated Transmission Modes and Signaling for Uplink MIMO Support or Single TB Dual-Layer Transmission in LTE Uplink
US20120314590A1 (en) 2011-06-10 2012-12-13 Sharp Laboratories Of America, Inc. Enhanced precoding feedback for multiple-user multiple-input and multiple-output (mimo)

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997015046A1 (en) * 1995-10-20 1997-04-24 America Online, Inc. Repetitive sound compression system
US20110110455A1 (en) * 2009-04-23 2011-05-12 Qualcomm Incorporated Rank and precoding indication for mimo operation
US8867436B2 (en) * 2009-07-31 2014-10-21 Qualcomm Incorporated Support for optional system parameter values
EP2556712B1 (en) * 2010-04-05 2020-09-09 Nokia Technologies Oy Channel state information feedback for enhanced downlink multiple input - multiple output operation
CN101826943A (zh) * 2010-04-30 2010-09-08 中兴通讯股份有限公司 基于多码本的下行信道信息反馈方法及装置
EP2757818A3 (en) * 2010-05-07 2014-09-24 Huawei Technologies Co., Ltd. Method and system for quantized feedback rate adaptation in a communication system
CN102237955B (zh) * 2010-05-07 2013-11-06 电信科学技术研究院 一种信道状态信息上报方法及其装置
US8494033B2 (en) 2010-06-15 2013-07-23 Telefonaktiebolaget L M Ericsson (Publ) Methods providing precoder feedback using multiple precoder indices and related communications devices and systems
US8891652B2 (en) * 2010-06-24 2014-11-18 Qualcomm Incorporated Structured MIMO codebook
CN101969366B (zh) * 2010-09-26 2012-11-14 华中科技大学 用于8发射天线mimo系统的预编码方法
US8687555B2 (en) * 2010-09-29 2014-04-01 Lg Electronics Inc. Method and apparatus for performing effective feedback in wireless communication system supporting multiple antennas
US8681627B2 (en) * 2010-12-07 2014-03-25 Sharp Kabushiki Kaisha Prioritizing multiple channel state information (CSI) reporting with carrier aggregation
GB2492564B (en) 2011-07-05 2013-12-04 Renesas Mobile Corp Improvements to MIMO communication networks
CN102571301B (zh) * 2011-12-27 2014-07-09 东南大学 一种基于双码本的多用户自适应反馈方法
US8976884B2 (en) * 2012-12-20 2015-03-10 Google Technology Holdings LLC Method and apparatus for antenna array channel feedback
US9143212B2 (en) 2013-02-25 2015-09-22 Texas Instruments Incorporated Codebook sub-sampling for CSI feedback on PUCCH for 4Tx MIMO
US9698887B2 (en) 2013-03-08 2017-07-04 Qualcomm Incorporated Systems and methods for enhanced MIMO operation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120219042A1 (en) 2010-04-30 2012-08-30 Texas Instruments Incorporated Transmission Modes and Signaling for Uplink MIMO Support or Single TB Dual-Layer Transmission in LTE Uplink
US20120218948A1 (en) 2010-09-02 2012-08-30 Texas Instruments Incorporated Downlink 8 Tx Codebook Sub-Sampling for CSI Feedback
US20120314590A1 (en) 2011-06-10 2012-12-13 Sharp Laboratories Of America, Inc. Enhanced precoding feedback for multiple-user multiple-input and multiple-output (mimo)

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JP2016514429A (ja) 2016-05-19
KR20150128844A (ko) 2015-11-18
US9698887B2 (en) 2017-07-04
CN105027463A (zh) 2015-11-04
KR20210024257A (ko) 2021-03-04
US20170279513A1 (en) 2017-09-28
BR112015021698A2 (pt) 2017-07-18
KR102223077B1 (ko) 2021-03-03
EP4254818A1 (en) 2023-10-04
CN110460362B (zh) 2022-06-28
WO2014138625A1 (en) 2014-09-12
JP6599239B2 (ja) 2019-10-30
US20140254701A1 (en) 2014-09-11
EP2965445A1 (en) 2016-01-13
US10284273B2 (en) 2019-05-07
CN110460362A (zh) 2019-11-15

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