JP6599239B2 - 拡張ｍｉｍｏ動作のためのシステムおよび方法 - Google Patents

拡張ｍｉｍｏ動作のためのシステムおよび方法 Download PDF

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JP6599239B2
JP6599239B2 JP2015561724A JP2015561724A JP6599239B2 JP 6599239 B2 JP6599239 B2 JP 6599239B2 JP 2015561724 A JP2015561724 A JP 2015561724A JP 2015561724 A JP2015561724 A JP 2015561724A JP 6599239 B2 JP6599239 B2 JP 6599239B2
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codebook
wireless communication
communication device
base station
csi
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JP2016514429A5 (enExample
JP2016514429A (ja
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ガイアホファー、ステファン
ガール、ピーター
チェン、ワンシ
シュ、ハオ
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Qualcomm Inc
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Qualcomm Inc
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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
    • 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
    • H04B7/0452—Multi-user MIMO systems
    • 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
    • H04B7/046—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
    • H04B7/0469—Selection 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
    • 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
    • H04B7/0478—Special codebook structures directed to feedback optimisation
    • 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
    • H04B7/0478—Special codebook structures directed to feedback optimisation
    • H04B7/0481—Special codebook structures directed to feedback optimisation using subset selection of codebooks
    • 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
    • H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode 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
    • H04B7/0621—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
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H04B7/06952—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
    • 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
    • H04B7/10—Polarisation diversity; Directional 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
    • H04B7/06—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
    • H04B7/0645—Variable feedback
    • H04B7/0647—Variable 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)
JP2015561724A 2013-03-08 2014-03-07 拡張ｍｉｍｏ動作のためのシステムおよび方法 Active JP6599239B2 (ja)

Applications Claiming Priority (9)

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

Publications (3)

Publication Number Publication Date
JP2016514429A JP2016514429A (ja) 2016-05-19
JP2016514429A5 JP2016514429A5 (enExample) 2017-03-16
JP6599239B2 true JP6599239B2 (ja) 2019-10-30

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US (2) US9698887B2 (enExample)
EP (2) EP2965445A1 (enExample)
JP (1) JP6599239B2 (enExample)
KR (2) KR102223077B1 (enExample)
CN (2) CN105027463A (enExample)
WO (1) WO2014138625A1 (enExample)

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
CN110830165B (zh) * 2013-05-24 2021-12-21 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
WO2015020232A1 (en) * 2013-08-07 2015-02-12 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
CN107431944B (zh) 2015-03-16 2021-06-11 株式会社Ntt都科摩 终端、基站、无线通信系统和通信方法
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
BR112018002713B1 (pt) * 2015-08-14 2023-10-17 Qualcomm Incorporated Método e aparelho para comunicação sem fio por um equipamento de usuário, e memória legível por computador
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
KR102527279B1 (ko) * 2015-11-18 2023-04-28 삼성전자주식회사 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
EP3455988B1 (en) 2016-05-13 2021-05-05 Telefonaktiebolaget LM Ericsson (Publ) Multi-resolution csi feedback
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
WO2018128442A1 (en) * 2017-01-05 2018-07-12 Samsung Electronics Co., Ltd. Method, apparatus, and system for terminal identification and paging signal transmission for terminal in power saving state
EP3579449A4 (en) * 2017-01-31 2020-06-17 LG Electronics Inc. -1- METHOD FOR REPORTING CHANNEL STATE INFORMATION IN A WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR
PL3577785T3 (pl) 2017-02-06 2021-08-02 Telefonaktiebolaget Lm Ericsson (Publ) Wielowiązkowe raportowanie CSI
US10079629B2 (en) * 2017-02-17 2018-09-18 Futurewei Technologies, Inc. Apparatus and method for pre-coding data based on channel statistics
EP3806376B1 (en) 2017-05-05 2022-07-06 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
EP3709553B1 (en) * 2018-01-07 2022-03-30 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
CN111431570A (zh) 2019-01-09 2020-07-17 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
WO2021147078A1 (en) * 2020-01-23 2021-07-29 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

Family Cites Families (20)

* 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
KR101387243B1 (ko) * 2010-04-05 2014-04-21 노키아 코포레이션 개선된 다운링크 다중 입력-다중 출력 동작을 위한 채널 상태 정보 피드백
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
US8848817B2 (en) * 2010-04-30 2014-09-30 Texas Instruments Incorporated Transmission modes and signaling for uplink MIMO support or single TB dual-layer transmission in LTE uplink
EP2567558B1 (en) * 2010-05-07 2014-07-30 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
US8693421B2 (en) * 2010-09-02 2014-04-08 Texas Instruments Incorporated Downlink 8 TX codebook sub-sampling for CSI feedback
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
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)
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

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Publication number Publication date
CN105027463A (zh) 2015-11-04
BR112015021698A2 (pt) 2017-07-18
KR102306700B1 (ko) 2021-09-28
CN110460362A (zh) 2019-11-15
US20140254701A1 (en) 2014-09-11
US20170279513A1 (en) 2017-09-28
US9698887B2 (en) 2017-07-04
WO2014138625A1 (en) 2014-09-12
JP2016514429A (ja) 2016-05-19
CN110460362B (zh) 2022-06-28
KR20150128844A (ko) 2015-11-18
KR20210024257A (ko) 2021-03-04
US10284273B2 (en) 2019-05-07
EP4254818A1 (en) 2023-10-04
EP2965445A1 (en) 2016-01-13
KR102223077B1 (ko) 2021-03-03

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