JP6227675B2 - 仮想エレベーション・ポートに基づく３ｄｍｉｍｏｃｓｉフィードバック - Google Patents

仮想エレベーション・ポートに基づく３ｄｍｉｍｏｃｓｉフィードバック Download PDF

Info

Publication number
JP6227675B2
JP6227675B2 JP2015555581A JP2015555581A JP6227675B2 JP 6227675 B2 JP6227675 B2 JP 6227675B2 JP 2015555581 A JP2015555581 A JP 2015555581A JP 2015555581 A JP2015555581 A JP 2015555581A JP 6227675 B2 JP6227675 B2 JP 6227675B2
Authority
JP
Japan
Prior art keywords
elevation
reference signal
beams
base station
providing
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.)
Active
Application number
JP2015555581A
Other languages
English (en)
Japanese (ja)
Other versions
JP2016511572A5 (https=
JP2016511572A (ja
Inventor
ウェイ、チャオ
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.)
Qualcomm Inc
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of JP2016511572A publication Critical patent/JP2016511572A/ja
Publication of JP2016511572A5 publication Critical patent/JP2016511572A5/ja
Application granted granted Critical
Publication of JP6227675B2 publication Critical patent/JP6227675B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • H04B7/0413—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
    • H04B7/0479—Special codebook structures directed to feedback optimisation for multi-dimensional arrays, e.g. horizontal or vertical pre-distortion matrix index [PMI]
    • 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
    • H04B7/0632—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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
JP2015555581A 2013-01-31 2014-02-07 仮想エレベーション・ポートに基づく３ｄｍｉｍｏｃｓｉフィードバック Active JP6227675B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PCT/CN2013/071178 WO2014117352A1 (en) 2013-01-31 2013-01-31 3d mimo csi feedback based on virtual elevation ports
CNPCT/CN2013/071178 2013-01-31
PCT/CN2014/071869 WO2014117748A1 (en) 2013-01-31 2014-02-07 3d mimo csi feedback based on virtual elevation ports

Publications (3)

Publication Number Publication Date
JP2016511572A JP2016511572A (ja) 2016-04-14
JP2016511572A5 JP2016511572A5 (https=) 2017-02-09
JP6227675B2 true JP6227675B2 (ja) 2017-11-08

Family

ID=51261407

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2015555581A Active JP6227675B2 (ja) 2013-01-31 2014-02-07 仮想エレベーション・ポートに基づく３ｄｍｉｍｏｃｓｉフィードバック

Country Status (7)

Country Link
US (1) US9497002B2 (https=)
EP (1) EP2951933B1 (https=)
JP (1) JP6227675B2 (https=)
KR (1) KR101735092B1 (https=)
BR (1) BR112015018024B1 (https=)
ES (1) ES2831624T3 (https=)
WO (2) WO2014117352A1 (https=)

Families Citing this family (83)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10193665B2 (en) 2013-03-21 2019-01-29 Texas Instruments Incorporated Reference signal for 3D MIMO in wireless communication systems
US20140295869A1 (en) * 2013-03-31 2014-10-02 Tejas Networks Limited Method and System of creating virtual sector within physical sector to avoid the interference and maximize the system throughput
KR102253873B1 (ko) * 2013-04-25 2021-05-20 삼성전자주식회사 무선 통신 네트워크에서 고주파 캐리어를 획득하는 방법 및 시스템
KR101807931B1 (ko) * 2013-05-09 2017-12-11 후지쯔 가부시끼가이샤 이동국 및 보고 방법
CN103825664B (zh) * 2014-02-21 2016-05-18 电信科学技术研究院 信道状态信息测量方法和装置、以及信号传输方法和装置
KR102169662B1 (ko) * 2014-03-10 2020-10-23 삼성전자주식회사 무선 통신 시스템에서 빔 결정 장치 및 방법
JP6438203B2 (ja) * 2014-03-20 2018-12-12 株式会社Ｎｔｔドコモ 基地局及びユーザ装置
JP6121931B2 (ja) * 2014-03-20 2017-04-26 株式会社Ｎｔｔドコモ 移動通信システム、基地局、およびユーザ装置
US10219232B2 (en) * 2014-04-17 2019-02-26 Samsung Electronics Co., Ltd. Apparatus and method searching neighboring cells in wireless communication system
US10181964B2 (en) * 2014-05-02 2019-01-15 Lg Electronics Inc. Method and apparatus for channel estimation
JP6406777B2 (ja) * 2014-09-23 2018-10-17 ホアウェイ・テクノロジーズ・カンパニー・リミテッド ビーム構成方法、基地局、およびユーザ機器
CN105517108B (zh) 2014-09-26 2019-03-22 电信科学技术研究院 一种小区接入方法及装置
CN105530036B (zh) * 2014-09-28 2019-04-02 电信科学技术研究院 信道状态信息反馈方法、设备及系统
CN105530037B (zh) * 2014-10-24 2019-04-19 电信科学技术研究院 一种信道状态信息的反馈、获取方法及装置
US10476563B2 (en) 2014-11-06 2019-11-12 Futurewei Technologies, Inc. System and method for beam-formed channel state reference signals
JP6536159B2 (ja) 2014-11-20 2019-07-03 住友電気工業株式会社 無線通信装置およびウェイト行列の決定方法
US9621243B2 (en) * 2014-12-03 2017-04-11 Texas Instruments Incorporated Method and apparatus for CSI feedback in a MIMO wireless communication system with elevation beamforming
US10567057B2 (en) * 2014-12-30 2020-02-18 Lg Electronics Inc. Method for performing channel estimation in wireless communication system and apparatus therefor
KR102416650B1 (ko) * 2015-01-19 2022-07-05 퀄컴 인코포레이티드 Fd-mimo 를 위한 향상된 csi 피드백
CN105991483B (zh) 2015-01-28 2020-08-07 索尼公司 无线通信设备和无线通信方法
CN105991171B (zh) * 2015-02-15 2019-05-10 电信科学技术研究院 一种三维信道状态信息确定方法及装置
EP3273717A4 (en) * 2015-03-16 2018-11-14 NTT DoCoMo, Inc. User device, base station, and communication method
US10368354B2 (en) 2015-03-25 2019-07-30 Lg Electronics Inc. Channel state information feedback method in multi-antenna wireless communication system and apparatus therefor
CN104836647B (zh) * 2015-04-14 2018-05-01 北京邮电大学 信道状态信息测量方法和装置
CN106160952B (zh) * 2015-04-17 2019-06-25 中国移动通信集团公司 一种信道信息反馈方法及装置
CN106301490B (zh) * 2015-05-15 2021-08-13 索尼公司 无线通信系统以及无线通信系统中的装置和方法
US10389509B2 (en) * 2015-07-30 2019-08-20 Futurewei Technologies, Inc. Multi-user, full duplex in-band communication in wireless networks
US10931342B2 (en) * 2015-08-13 2021-02-23 Samsung Electronics Co., Ltd. Reference signal measurement method and apparatus for use in mobile communication system
US10038530B2 (en) * 2015-08-14 2018-07-31 Industrial Technology Research Institute Method of transmitting and receiving CSI-RS and related apparatuses using the same
US10469149B2 (en) * 2015-08-18 2019-11-05 Lg Electronics Inc. Beam scanning method using codebook in wireless communication system
WO2017034227A1 (en) * 2015-08-21 2017-03-02 Samsung Electronics Co., Ltd. Channel direction information acquisition method and device
CN106470063B (zh) * 2015-08-21 2021-05-04 北京三星通信技术研究有限公司 信道方向信息的获取方法和设备
US20180367204A1 (en) 2015-08-27 2018-12-20 Intel IP Corporation Beam acquisition with receiving beamforming
WO2017043883A1 (ko) * 2015-09-11 2017-03-16 엘지전자 주식회사 무선 통신 시스템에서 3d mimo 전송을 위한 빔 인덱스를 보고하는 방법 및 이를 위한 장치
EP3381133B1 (en) * 2015-11-23 2019-08-14 Telefonaktiebolaget LM Ericsson (publ) Antenna system configuration
WO2017111494A1 (en) * 2015-12-22 2017-06-29 Samsung Electronics Co., Ltd. Scheme for configuring reference signal and communicating channel state information in a wireless communication system using multiple antenna ports
CN114900898A (zh) 2016-01-07 2022-08-12 高通股份有限公司 用于fd-mimo的增强的csi反馈
WO2017123060A1 (en) 2016-01-14 2017-07-20 Samsung Electronics Co., Ltd. System, method, and apparatus of beam-tracking and beam feedback operation in a beam-forming based system
US10602440B2 (en) 2016-03-07 2020-03-24 Telefonaktiebolabet Lm Ericsson (Publ) Method and access node for supporting UE as well as a UE and corresponding method carried out by the UE in a wireless communication system
JP6542143B2 (ja) * 2016-03-11 2019-07-10 株式会社Ｎｔｔドコモ 基地局
WO2017162283A1 (en) * 2016-03-23 2017-09-28 Telefonaktiebolaget Lm Ericsson (Publ) Efficient scheduling of beam quality measurement signals to multiple wireless devices
US10812163B2 (en) 2016-04-01 2020-10-20 Apple Inc. CSI (channel state information) enhancements for FD (full dimension)-MIMO (multiple input multiple output)
JP6709492B2 (ja) * 2016-04-01 2020-06-17 国立大学法人東北大学 送信装置、送信方法及び送信プログラム
US10615862B2 (en) 2016-04-13 2020-04-07 Qualcomm Incorporated System and method for beam adjustment request
US10425200B2 (en) 2016-04-13 2019-09-24 Qualcomm Incorporated System and method for beam adjustment request
US11791882B2 (en) * 2016-04-13 2023-10-17 Qualcomm Incorporated System and method for beam management
US11178646B2 (en) * 2016-04-19 2021-11-16 Qualcomm Incorporated Beam reference signal based narrowband channel measurement and CQI reporting
KR20170123960A (ko) * 2016-04-29 2017-11-09 삼성전자주식회사 다수의 배열 안테나를 사용하는 이동통신 시스템에서 기준신호 설정 및 전송을 위한 방법 및 장치
WO2017193331A1 (en) * 2016-05-12 2017-11-16 Qualcomm Incorporated Hybrid class b fd-mimo
US10651899B2 (en) 2016-05-26 2020-05-12 Qualcomm Incorporated System and method for beam switching and reporting
US10541741B2 (en) * 2016-05-26 2020-01-21 Qualcomm Incorporated System and method for beam switching and reporting
US10181891B2 (en) 2016-05-26 2019-01-15 Qualcomm Incorporated System and method for beam switching and reporting
US10498406B2 (en) 2016-05-26 2019-12-03 Qualcomm Incorporated System and method for beam switching and reporting
US10382115B2 (en) * 2016-06-30 2019-08-13 Futurewei Technologies, Inc. System and method for hybrid beamforming diversity
WO2018020078A1 (en) * 2016-07-26 2018-02-01 Nokia Technologies Oy Signaling rx/tx beamforming linkage for mimo systems
CN110326228B (zh) * 2016-08-11 2023-06-13 交互数字专利控股公司 用于新无线电的csi反馈方法和装置
WO2018027994A1 (en) * 2016-08-12 2018-02-15 Qualcomm Incorporated Techniques for channel state information acquisition in new radio technology
WO2018055746A1 (ja) * 2016-09-23 2018-03-29 富士通株式会社 端末、無線装置、通信システムおよび通信方法
CN108023629A (zh) * 2016-11-03 2018-05-11 株式会社Ntt都科摩 波束确定方法、下行传输解调方法、用户设备和基站
US10154496B2 (en) * 2016-11-10 2018-12-11 Futurewei Technologies, Inc. System and method for beamformed reference signals in three dimensional multiple input multiple output communications systems
US10924956B2 (en) * 2017-01-03 2021-02-16 Lg Electronics Inc. Beam information reporting method for multi-user MIMO transmission in wireless communication system and apparatus therefor
US11140706B2 (en) * 2017-02-01 2021-10-05 Qualcomm Incorporated Data transmissions during base station beamsweep
US10779273B2 (en) 2017-03-10 2020-09-15 Qualcomm Incorporated NR uplink transmit beam selection based on PDCCH/PDSCH receive beams
US10602520B2 (en) 2017-03-24 2020-03-24 Qualcomm Incorporated Multi-link control beam switching
US10484066B2 (en) 2017-04-04 2019-11-19 Qualcomm Incorporated Beam management using synchronization signals through channel feedback framework
US11888771B2 (en) 2017-05-05 2024-01-30 Qualcomm Incorporated Beam procedure information for channel state information reference signals (CSI-RS)
CN109005548B (zh) 2017-06-06 2023-09-29 华为技术有限公司 一种信道质量信息的上报方法及装置
CN109004958B (zh) * 2017-06-06 2021-05-25 财团法人工业技术研究院 用户设备及其操作方法，网络装置及其操作方法
JP6984189B2 (ja) * 2017-06-14 2021-12-17 ソニーグループ株式会社 基地局装置、基地局装置の制御方法、端末装置及び端末装置の制御方法
CN110999111B (zh) * 2017-08-01 2023-06-27 瑞典爱立信有限公司 用于选择将由ue监视的波束集的方法、基站和用户设备
CN109391296A (zh) * 2017-08-11 2019-02-26 索尼公司 用于无线通信的电子设备、方法和介质
WO2019056182A1 (en) 2017-09-19 2019-03-28 Intel Corporation ASSISTED BEAM BEAM ACQUISITION BY BEAM ESTIMATION
CN109660284A (zh) * 2017-10-11 2019-04-19 索尼公司 无线通信系统中的电子设备、通信方法和存储介质
JP7184893B2 (ja) * 2017-11-27 2022-12-06 ノキア テクノロジーズ オサケユイチア 無線ネットワーク用の結合ビーム報告
US11284396B2 (en) 2018-03-19 2022-03-22 Qualcomm Incorporated Techniques for determining beams for beamforming wireless communications
WO2019210982A1 (en) 2018-05-04 2019-11-07 Telefonaktiebolaget Lm Ericsson (Publ) Beam management and participation in a beam management procedure
CN110581727A (zh) * 2018-06-08 2019-12-17 英国电讯有限公司 无线电信网络
JP7248096B2 (ja) 2018-07-06 2023-03-29 日本電気株式会社 通信で実行される方法、端末機器及びネットワーク機器
CN110753400A (zh) 2018-07-24 2020-02-04 索尼公司 用户设备、电子设备、无线通信方法和存储介质
CN114208050B (zh) 2019-08-01 2023-04-11 华为技术有限公司 用于多天线网络实体和无线通信装置的自适应克罗内克积mimo预编码及相应方法
EP4315931A1 (en) * 2021-03-30 2024-02-07 Telefonaktiebolaget LM Ericsson (publ) Methods and apparatus for identifying a tilt angle for a wireless device
US12126466B2 (en) * 2022-03-09 2024-10-22 Qualcomm Incorporated Channel state feedback using demodulation reference signals
US12355532B2 (en) * 2022-08-19 2025-07-08 Samsung Electronics Co., Ltd. CSI report for spatial domain network adaptation

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101137185B (zh) * 2007-01-18 2010-04-14 中兴通讯股份有限公司 一种智能天线技术应用于无线通信系统的方法
US8254487B2 (en) * 2007-08-09 2012-08-28 Samsung Electronics Co., Ltd. Method and apparatus of codebook-based single-user closed-loop transmit beamforming (SU-CLTB) for OFDM wireless systems
US8027703B2 (en) 2009-02-11 2011-09-27 Amphenol Corporation Multi-beam antenna with multi-device control unit
CN101877608B (zh) * 2010-06-30 2015-07-22 中兴通讯股份有限公司 一种针对协作波束赋型的优化加权csi反馈方法和装置
US8442449B2 (en) * 2010-11-08 2013-05-14 Telefonaktiebolaget L M Ericsson (Publ) Receiver and method for reducing an amount of channel state information feedback to a transmitter
EP2482582B1 (en) 2011-01-26 2013-01-16 Alcatel Lucent Base station, method of operating a base station, terminal and method of operating a terminal
EP2528290A1 (en) * 2011-05-27 2012-11-28 Alcatel Lucent Feedback information transmission and scheduling in a radio access network
CN102857285B (zh) * 2011-06-30 2017-11-03 中兴通讯股份有限公司 信道信息反馈方法及装置
CN102938662B (zh) * 2011-08-15 2015-09-16 上海贝尔股份有限公司 用于3d天线配置的码本设计方法
CN102938688B (zh) * 2011-08-15 2015-05-27 上海贝尔股份有限公司 用于多维天线阵列的信道测量和反馈的方法和设备
EP2777172B1 (en) * 2011-11-11 2017-03-15 Telefonaktiebolaget LM Ericsson (publ) Method, apparatus and system of antenna array dynamic configuration
US9059878B2 (en) * 2012-03-30 2015-06-16 Nokia Solutions And Networks Oy Codebook feedback method for per-user elevation beamforming
US9438321B2 (en) * 2012-07-12 2016-09-06 Samsung Electronics Co., Ltd. Methods and apparatus for codebook subset restriction for two-dimensional advanced antenna systems
US9312937B2 (en) * 2012-08-26 2016-04-12 Lg Electronics Inc. Method and apparatus for transmitting codebook-based signal in wireless communication system
CN103684657A (zh) * 2012-09-03 2014-03-26 夏普株式会社 预编码矩阵构造和索引值反馈方法及相关通信设备
US8942302B2 (en) * 2012-12-20 2015-01-27 Google Technology Holdings LLC Method and apparatus for antenna array channel feedback
US20150382205A1 (en) * 2013-01-25 2015-12-31 Interdigital Patent Holdings, Inc. Methods and apparatus for vertical beamforming

Also Published As

Publication number Publication date
ES2831624T3 (es) 2021-06-09
EP2951933A1 (en) 2015-12-09
KR20150118165A (ko) 2015-10-21
EP2951933A4 (en) 2016-10-12
BR112015018024A2 (pt) 2017-07-11
US9497002B2 (en) 2016-11-15
WO2014117748A1 (en) 2014-08-07
BR112015018024B1 (pt) 2023-03-28
EP2951933B1 (en) 2020-08-19
US20160028519A1 (en) 2016-01-28
WO2014117352A1 (en) 2014-08-07
KR101735092B1 (ko) 2017-05-12
JP2016511572A (ja) 2016-04-14

Similar Documents

Publication Publication Date Title
JP6227675B2 (ja) 仮想エレベーション・ポートに基づく３ｄｍｉｍｏｃｓｉフィードバック
CN104956604B (zh) 一种用于基于虚拟仰角端口的3d mimo csi反馈的方法和装置
JP7383065B2 (ja) Ｅｂ／ｆｄ－ｍｉｍｏのためのｃｓｉフィードバック処理およびｃｓｉ報告
JP6776127B2 (ja) Ｍｉｍｏのための周期および非周期チャネル状態情報（ｃｓｉ）報告
JP6629349B2 (ja) Ｆｄ−ｍｉｍｏのための増強されたｃｓｉプロシージャ
JP6359675B2 (ja) チャネル状態フィードバックおよび送信ポイント選択のためのｃｓｉ−ｒｓのジョイント送信
JP6130483B2 (ja) 参照信号およびｃｓｉフィードバックのためのシステムおよび方法
JP6513814B2 (ja) Ｆｄ−ｍｉｍｏのための拡張ｃｓｉフィードバック
JP5607247B2 (ja) オープン・ループ・ビームフォーミングのための物理リソース・ブロック（ｐｒｂ）バンドリング
KR102574004B1 (ko) Fd-mimo 를 위한 csi 피드백 오버헤드 감축
JP6724132B2 (ja) エレベーションビームフォーミングおよびｆｄ−ｍｉｍｏのためのｃｓｉフィードバックシグナリング
CN109478987B (zh) 用于处置通信的方法和用户设备
JP2013545405A (ja) チャネル状態情報を決定して使用するための方法および装置
JP2017535132A (ja) １次元ｃｓｉフィードバックを用いた全次元ｍｉｍｏのための装置および方法
EP2774406A2 (en) Beamforming coordination in heterogeneous networks
EP2941917A1 (en) Rank indicator inheritance for subframe restricted channel state information reporting
JP6648313B2 (ja) Ｍｉｍｏのための周期および非周期チャネル状態情報（ｃｓｉ）報告

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20161221

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20161221

A871 Explanation of circumstances concerning accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A871

Effective date: 20161221

A975 Report on accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A971005

Effective date: 20170308

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20170404

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20170627

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20170912

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20171011

R150 Certificate of patent or registration of utility model

Ref document number: 6227675

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250