WO2018174636A3 - 무선 통신 시스템에서 채널 상태 정보 송수신 방법 및 이를 위한 장치 - Google Patents

무선 통신 시스템에서 채널 상태 정보 송수신 방법 및 이를 위한 장치 Download PDF

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Publication number
WO2018174636A3
WO2018174636A3 PCT/KR2018/003438 KR2018003438W WO2018174636A3 WO 2018174636 A3 WO2018174636 A3 WO 2018174636A3 KR 2018003438 W KR2018003438 W KR 2018003438W WO 2018174636 A3 WO2018174636 A3 WO 2018174636A3
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WIPO (PCT)
Prior art keywords
csi
channel state
state information
wireless communication
communication system
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PCT/KR2018/003438
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English (en)
French (fr)
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WO2018174636A2 (ko
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박해욱
김기준
이상림
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엘지전자 (주)
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Priority to EP18772024.8A priority Critical patent/EP3605868A4/en
Priority to KR1020217040137A priority patent/KR102364258B1/ko
Priority to US16/496,839 priority patent/US11271625B2/en
Priority to CN201880026615.8A priority patent/CN110832789B/zh
Priority to KR1020197029169A priority patent/KR102338306B1/ko
Priority to JP2019552525A priority patent/JP6942813B2/ja
Publication of WO2018174636A2 publication Critical patent/WO2018174636A2/ko
Publication of WO2018174636A3 publication Critical patent/WO2018174636A3/ko
Priority to US17/470,567 priority patent/US11736162B2/en

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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
    • H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
    • 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
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0486—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking channel rank into account
    • 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
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • 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
    • 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
    • H04B7/0617—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 for beam forming
    • 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
    • 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
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • 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
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • 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
    • H04B7/0658—Feedback reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2634—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
    • H04L27/2636—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)

Abstract

무선 통신 시스템에서 채널 상태 정보 송수신 방법 및 이를 위한 장치가 개시된다. 구체적으로, 무선 통신 시스템에서 사용자 장치 (UE: User Equipment) 7} 채널 상태 정보 (CSI: Channel State Information)를 전송하기 위한 방법에 있어서, 기지국으로부터 다중 안테나 포트를 통해 채널 상태 정보 참조 신호 (CSI-RS: Channel State Information Reference Signal)을 수신하는 단계 및 CSI를 상기 기지국에게 보고하는 단계를 포함하고, 상기 CSI는 상기 CSI의 보고를 위한 코드북 내에서 프리코딩 행렬을 생성하기 위해 이용되는 복수의 코드워드를 지시하는 선택 정보, 설정된 대역 (bandwidth) 측면에서 상기 복수의 코드워드의 각각에 적용되는 파워 계수 (power coefficient), 위상 오프셋 (phase offset) 및 위상 변화 (phase shift) 값을 포함하고, 상기 파워 계수, 상기 위상 오프셋 및 상기 위상 변화 값이 적용된 상기 복수의 코드워드의 선형 결합 (linear combination)을 기반으로 상기 설정된 대역 (bandwidth) 내 서브 대역 단위로 상기 프리코딩 행렬이 생성될 수 있다.
PCT/KR2018/003438 2017-03-23 2018-03-23 무선 통신 시스템에서 채널 상태 정보 송수신 방법 및 이를 위한 장치 WO2018174636A2 (ko)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP18772024.8A EP3605868A4 (en) 2017-03-23 2018-03-23 METHOD OF TRANSMITTING OR RECEIVING CHANNEL STATUS INFORMATION IN A WIRELESS COMMUNICATION SYSTEM AND ASSOCIATED DEVICE
KR1020217040137A KR102364258B1 (ko) 2017-03-23 2018-03-23 무선 통신 시스템에서 채널 상태 정보 송수신 방법 및 이를 위한 장치
US16/496,839 US11271625B2 (en) 2017-03-23 2018-03-23 Method for transmitting and receiving channel state information in wireless communication system and apparatus therefor
CN201880026615.8A CN110832789B (zh) 2017-03-23 2018-03-23 在无线通信***中发送或接收信道状态信息的方法及其设备
KR1020197029169A KR102338306B1 (ko) 2017-03-23 2018-03-23 무선 통신 시스템에서 채널 상태 정보 송수신 방법 및 이를 위한 장치
JP2019552525A JP6942813B2 (ja) 2017-03-23 2018-03-23 無線通信システムにおけるチャネル状態情報送受信方法及びそのための装置
US17/470,567 US11736162B2 (en) 2017-03-23 2021-09-09 Method for transmitting and receiving channel state information in wireless communication system and apparatus therefor

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US201762475833P 2017-03-23 2017-03-23
US62/475,833 2017-03-23
US201762501825P 2017-05-05 2017-05-05
US62/501,825 2017-05-05
US201762505100P 2017-05-11 2017-05-11
US62/505,100 2017-05-11

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US16/496,839 A-371-Of-International US11271625B2 (en) 2017-03-23 2018-03-23 Method for transmitting and receiving channel state information in wireless communication system and apparatus therefor
US17/470,567 Continuation US11736162B2 (en) 2017-03-23 2021-09-09 Method for transmitting and receiving channel state information in wireless communication system and apparatus therefor

Publications (2)

Publication Number Publication Date
WO2018174636A2 WO2018174636A2 (ko) 2018-09-27
WO2018174636A3 true WO2018174636A3 (ko) 2018-11-15

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US (2) US11271625B2 (ko)
EP (1) EP3605868A4 (ko)
JP (2) JP6942813B2 (ko)
KR (2) KR102364258B1 (ko)
CN (1) CN110832789B (ko)
WO (1) WO2018174636A2 (ko)

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108288984B (zh) * 2017-01-09 2022-05-10 华为技术有限公司 一种参数指示及确定方法和接收端设备及发射端设备
TWI674775B (zh) * 2017-05-02 2019-10-11 聯發科技股份有限公司 行動通訊中用於線性組合碼書和回授機制之負載降低方法
US10911127B2 (en) * 2018-01-23 2021-02-02 Telefonaktiebolaget Lm Ericsson (Publ) Beam management of a radio transceiver device
US10651912B2 (en) * 2018-02-07 2020-05-12 At&T Intellectual Property I, L.P. Reciprocity based channel state information acquisition for frequency division duplex system
US10419257B2 (en) * 2018-02-15 2019-09-17 Huawei Technologies Co., Ltd. OFDM communication system with method for determination of subcarrier offset for OFDM symbol generation
US11477809B2 (en) * 2018-04-12 2022-10-18 Qualcomm Incorporated Techniques for channel estimation
WO2020036807A1 (en) * 2018-08-17 2020-02-20 Blue Danube Systems, Inc. Channel sounding in hybrid massive mimo arrays
CN112997418B (zh) 2018-09-11 2024-04-05 弗劳恩霍夫应用研究促进协会 提供csi反馈的通信设备和方法、发送器和发送方法
US11316571B2 (en) * 2018-11-01 2022-04-26 Lenovo (Singapore) Pte. Ltd. Transform domain channel state information feedback
EP3811527B1 (en) * 2018-11-13 2022-07-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Methods and apparatuses for reducing feedback overhead
WO2020118549A1 (en) 2018-12-12 2020-06-18 Qualcomm Incorporated Coefficients report for compressed csi feedback
EP3672096A1 (en) 2018-12-22 2020-06-24 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Methods and apparatuses for feedback reporting in a wireless communications network
US11949483B2 (en) * 2021-02-01 2024-04-02 Koninklijke Philips N.V. Methods and apparatuses for codebook restriction for type-II feedback reporting and higher layer configuration and reporting for linear combination codebook in a wireless communications network
EP3909142B1 (en) 2019-01-11 2023-12-27 Lenovo (Singapore) Pte. Ltd. Generating a channel state information ("csi") report
WO2020150854A1 (en) * 2019-01-21 2020-07-30 Qualcomm Incorporated Feedback overhead reduction
US11039399B2 (en) * 2019-02-05 2021-06-15 Qualcomm Incorporated Open loop power control for two-step random access
WO2020164108A1 (en) * 2019-02-15 2020-08-20 Qualcomm Incorporated Coefficient indication for channel state information
WO2020182269A1 (en) * 2019-03-08 2020-09-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Csi reporting and codebook structure for doppler-delay codebook-based precoding in a wireless communications systems
US11818076B2 (en) * 2019-03-29 2023-11-14 Lg Electronics Inc. Method for transmitting channel state information in wireless communication system and device therefor
US11303327B2 (en) * 2019-05-03 2022-04-12 Qualcomm Incorporated Power density exposure control
CN114026793A (zh) * 2019-06-14 2022-02-08 日本电气株式会社 用于上行链路控制信息传输的方法、设备和计算机可读介质
US11336352B2 (en) * 2019-07-15 2022-05-17 Qualcomm Incorporated Channel state information reference signal for wideband operation
JP2022540830A (ja) 2019-07-15 2022-09-20 クゥアルコム・インコーポレイテッド 広帯域動作のためのチャネル状態情報基準信号
EP4000195B1 (en) * 2019-07-18 2024-01-10 Telefonaktiebolaget LM Ericsson (publ) Cqi saturation mitigation in massive mu-mimo systems
EP3780411A1 (en) * 2019-08-14 2021-02-17 FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. Precoder matrix indication and codebook structure for precoding for frequency selective mimo channels
EP4042583A4 (en) * 2019-10-08 2022-10-19 Telefonaktiebolaget Lm Ericsson (Publ) METHOD, USER DEVICE AND APU FOR HANDLING DATA TRANSMISSIONS IN A DISTRIBUTED MIMO SYSTEM
KR20220082870A (ko) * 2019-10-11 2022-06-17 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 광대역 채널에서 단일 송신기에 의한 공간 다중화
EP4055956A4 (en) * 2019-11-07 2023-08-16 FG Innovation Company Limited METHOD AND USER DEVICE FOR CREATING A DOWNLINK CONTROL INFORMATION FORM
KR20210135874A (ko) * 2020-05-06 2021-11-16 삼성전자주식회사 무선통신 시스템에서 채널 상태 보고 방법 및 장치
CN114586311B (zh) * 2020-07-23 2024-02-06 谷歌有限责任公司 用于启用用户设备的未配对接收器路径的无线电链路管理
CN112272051B (zh) * 2020-09-22 2021-09-07 南京邮电大学 面向大规模mimo的误码率可控的符号级混合预编码方法
US20220109550A1 (en) * 2020-10-05 2022-04-07 Qualcomm Incorporated Techniques for precoding in full duplex wireless communications systems
CN112468199B (zh) * 2020-11-16 2021-09-07 南京邮电大学 面向大规模mimo的符号级混合预编码方法
WO2022174372A1 (en) * 2021-02-18 2022-08-25 Apple Inc. Systems and methods for ue coordination based csi feedback
CN115134198A (zh) * 2021-03-26 2022-09-30 北京紫光展锐通信技术有限公司 信道补偿方法及***、用户设备、基站及存储介质
CN115134197A (zh) * 2021-03-26 2022-09-30 北京紫光展锐通信技术有限公司 信道补偿方法及***、用户设备、基站及存储介质
US11668790B2 (en) * 2021-05-25 2023-06-06 Nxp B.V. Radar communications with oversampling
CN116418459A (zh) * 2021-12-30 2023-07-11 华为技术有限公司 信道状态信息反馈方法及装置、介质、程序产品
WO2023132660A1 (ko) * 2022-01-05 2023-07-13 주식회사 윌러스표준기술연구소 종속 양자화를 이용한 비디오 신호 처리 방법 및 이를 위한 장치
CN115085779B (zh) * 2022-05-10 2023-07-04 南京邮电大学 一种大规模mimo***中接收天线选择与发送功率分配的联合设计方法
WO2024026647A1 (zh) * 2022-08-01 2024-02-08 北京小米移动软件有限公司 系数指示方法及其装置
WO2024031467A1 (en) * 2022-08-10 2024-02-15 Zte Corporation Channel state information report enhancements
CN115459868B (zh) * 2022-09-22 2023-09-22 利国智能科技(昆山)有限公司 一种复杂环境下的毫米波通信性能评估方法及***
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CN117713885B (zh) * 2024-02-06 2024-06-18 荣耀终端有限公司 一种通信方法、通信装置及通信***

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017014609A1 (ko) * 2015-07-23 2017-01-26 엘지전자(주) 다중 안테나 무선 통신 시스템에서 코드북 기반 신호 송수신 방법 및 이를 위한 장치

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI343200B (en) 2006-05-26 2011-06-01 Lg Electronics Inc Method and apparatus for signal generation using phase-shift based pre-coding
US8396158B2 (en) * 2006-07-14 2013-03-12 Nokia Corporation Data processing method, data transmission method, data reception method, apparatus, codebook, computer program product, computer program distribution medium
WO2008082344A1 (en) * 2007-01-04 2008-07-10 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for improving transmission efficiency in a mobile radio communications system
KR101056614B1 (ko) 2008-07-30 2011-08-11 엘지전자 주식회사 다중안테나 시스템에서 데이터 전송방법
AU2015234324B2 (en) * 2011-01-07 2017-06-29 Interdigital Patent Holdings, Inc. Communicating channel state information (CSI) of multiple transmission points
US9621318B2 (en) 2012-02-01 2017-04-11 Samsung Electronics Co., Ltd Method and device for transmitting and receiving channel state information in downlink coordinated multi-point system
US8744473B2 (en) * 2012-04-04 2014-06-03 Telefonaktiebolaget L M Ericsson (Publ) Downlink limited-feedback interference alignment with constant amplitude codebooks and rate balance scheduling
JP6072258B2 (ja) * 2012-08-28 2017-02-01 エルジー エレクトロニクス インコーポレイティド 無線通信システムにおいてチャネル状態情報をフィードバックする方法及びそのための装置
US8976884B2 (en) * 2012-12-20 2015-03-10 Google Technology Holdings LLC Method and apparatus for antenna array channel feedback
KR101819480B1 (ko) 2013-04-28 2018-01-17 후아웨이 테크놀러지 컴퍼니 리미티드 프리코딩 행렬 인디케이터 피드백 방법, 수신단 및 송신단
JP6339666B2 (ja) 2014-03-18 2018-06-06 アルカテル−ルーセント Ｍｉｍｏシステム内の複数アンテナ・チャネルに関するコードブック・フィードバックの方法および装置
US9654195B2 (en) * 2014-11-17 2017-05-16 Samsung Electronics Co., Ltd. Methods to calculate linear combination pre-coders for MIMO wireless communication systems
US10110286B2 (en) 2015-03-30 2018-10-23 Samsung Electronics Co., Ltd. Method and apparatus for codebook design and signaling
US10158414B2 (en) 2015-06-18 2018-12-18 Samsung Electronics Co., Ltd. Advanced beamforming and feedback methods for MIMO wireless communication systems
SG11201710733WA (en) * 2015-07-03 2018-01-30 Sharp Kk Terminal device, base station device, communication method and integrated circuit
JP2017050758A (ja) * 2015-09-03 2017-03-09 ソニー株式会社 端末装置及び無線通信装置
US10298300B2 (en) * 2016-07-27 2019-05-21 Samsung Electronics Co., Ltd. Linear combination codebook for CSI reporting in advanced wireless communication systems
BR112019016070A2 (pt) * 2017-02-06 2020-03-31 Telefonaktiebolaget Lm Ericsson (Publ) Métodos de operação de um segundo nó e de operação de um primeiro nó, segundo nó, e, primeiro nó

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017014609A1 (ko) * 2015-07-23 2017-01-26 엘지전자(주) 다중 안테나 무선 통신 시스템에서 코드북 기반 신호 송수신 방법 및 이를 위한 장치

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
INTEL CORPORATION: "OnNR Type II Category 2 codebook", R1-1702206, 3GPP TSG RAN WG1 MEETING #88, 7 February 2017 (2017-02-07), XP0051221114 *
LG ELECTRONICS, R1-1704884, 3GPP TSG RAN WG1 MEELING#88BIS, 25 March 2017 (2017-03-25), XP051251569 *
LG ELECTRONICS: "Discussion on CSI Feedback Type II", R1 -1702457, 3GPP TSG RAN WG1 MEETING#88, 7 February 2017 (2017-02-07), XP051221317 *
NTT DOCOMO: "CSI Feedback Type II for NR MIMO", R1-1702843, 3GPP TSG RAN WG1 MEETING #88, 7 February 2017 (2017-02-07), XP051221670 *
ZTE ET AL.: "Linear Combination Based CSI Feedback Design for NR MIMO", R1-1701809, 3GPP TSG RAN WG1 MEETING #88, 7 February 2017 (2017-02-07), XP051220875 *

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