ES2831624T3 - Realimentación de CSI MIMO 3D basada en puertos de elevación virtuales - Google Patents

Realimentación de CSI MIMO 3D basada en puertos de elevación virtuales Download PDF

Info

Publication number
ES2831624T3
ES2831624T3 ES14746148T ES14746148T ES2831624T3 ES 2831624 T3 ES2831624 T3 ES 2831624T3 ES 14746148 T ES14746148 T ES 14746148T ES 14746148 T ES14746148 T ES 14746148T ES 2831624 T3 ES2831624 T3 ES 2831624T3
Authority
ES
Spain
Prior art keywords
elevation
beams
reference signals
base station
preferred
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
ES14746148T
Other languages
English (en)
Spanish (es)
Inventor
Chao Wei
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
Application granted granted Critical
Publication of ES2831624T3 publication Critical patent/ES2831624T3/es
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413MIMO systems
    • H04B7/0456Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • 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
    • H04B7/0479Special codebook structures directed to feedback optimisation for multi-dimensional arrays, e.g. horizontal or vertical pre-distortion matrix index [PMI]
    • 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
    • H04B7/0617Diversity 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
    • 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
    • H04B7/06952Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access 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)
ES14746148T 2013-01-31 2014-02-07 Realimentación de CSI MIMO 3D basada en puertos de elevación virtuales Active ES2831624T3 (es)

Applications Claiming Priority (2)

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
PCT/CN2014/071869 WO2014117748A1 (en) 2013-01-31 2014-02-07 3d mimo csi feedback based on virtual elevation ports

Publications (1)

Publication Number Publication Date
ES2831624T3 true ES2831624T3 (es) 2021-06-09

Family

ID=51261407

Family Applications (1)

Application Number Title Priority Date Filing Date
ES14746148T Active ES2831624T3 (es) 2013-01-31 2014-02-07 Realimentación de CSI MIMO 3D basada en puertos de elevación virtuales

Country Status (7)

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

Families Citing this family (82)

* 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
WO2014175696A1 (en) * 2013-04-25 2014-10-30 Samsung Electronics Co., Ltd. Method and system for acquiring high frequency carrier in a wireless communication network
WO2014181444A1 (ja) * 2013-05-09 2014-11-13 富士通株式会社 移動局及び報告方法
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
WO2015167119A1 (en) * 2014-05-02 2015-11-05 Lg Electronics Inc. Method and apparatus for channel estimation
EP3200498B1 (en) * 2014-09-23 2020-01-22 Huawei Technologies Co. Ltd. Beam configuration method and user equipment
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
WO2016108483A1 (ko) * 2014-12-30 2016-07-07 엘지전자(주) 무선 통신 시스템에서 채널 추정을 수행하기 위한 방법 및 이를 위한 장치
US10826577B2 (en) 2015-01-19 2020-11-03 Qualcomm Incorporated Enhanced CSI feedback for FD-MIMO
CN111884957B (zh) * 2015-01-28 2023-05-16 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
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
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
CN106470065B (zh) * 2015-08-14 2020-01-21 财团法人工业技术研究院 发射和接收信道状态信息参考信号的方法及其基站和设备
WO2017030300A1 (ko) * 2015-08-18 2017-02-23 엘지전자 주식회사 무선 통신 시스템에서 코드북을 이용한 빔 스캐닝 수행 방법
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
US10171154B2 (en) 2015-09-11 2019-01-01 Lg Electronics Inc. Method for reporting beam index for 3D MIMO transmission in wireless communication system, and device therefor
WO2017088896A1 (en) * 2015-11-23 2017-06-01 Telefonaktiebolaget Lm Ericsson (Publ) Antenna system configuration
CN108432174A (zh) * 2015-12-22 2018-08-21 三星电子株式会社 使用多个天线端口在无线通信系统中配置参考信号和通信信道状态信息的方案
EP4478622A3 (en) 2016-01-07 2025-03-12 QUALCOMM Incorporated Enhanced csi feedback for fd-mimo
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
CN109196791B (zh) * 2016-03-07 2022-02-15 瑞典爱立信有限公司 支持ue的方法和接入节点、ue和由ue执行的方法
JP6542143B2 (ja) * 2016-03-11 2019-07-10 株式会社Nttドコモ 基地局
US10277338B2 (en) 2016-03-23 2019-04-30 Telefonaktiebolaget Lm Ericsson (Publ) Efficient scheduling of beam quality measurement signals to multiple wireless devices
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
US10812163B2 (en) 2016-04-01 2020-10-20 Apple Inc. CSI (channel state information) enhancements for FD (full dimension)-MIMO (multiple input multiple output)
US10425200B2 (en) 2016-04-13 2019-09-24 Qualcomm Incorporated System and method for beam adjustment request
US10615862B2 (en) 2016-04-13 2020-04-07 Qualcomm Incorporated System and method for beam adjustment request
US10069555B2 (en) 2016-04-13 2018-09-04 Qualcomm Incorporated System and method for beam management
US10237857B2 (en) * 2016-04-19 2019-03-19 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
US10498406B2 (en) 2016-05-26 2019-12-03 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
US10541741B2 (en) * 2016-05-26 2020-01-21 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
US11290158B2 (en) 2016-07-26 2022-03-29 Nokia Technologies Oy Signaling RX/TX beamforming linkage for MIMO systems
WO2018031924A1 (en) * 2016-08-11 2018-02-15 Convida Wireless, Llc Csi feedback design for new radio
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
WO2018128384A1 (ko) * 2017-01-03 2018-07-12 엘지전자 주식회사 무선 통신 시스템에서 다중 사용자 mimo 전송을 위한 빔 정보 보고 방법 및 이를 위한 장치
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)
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
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
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
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
WO2019102064A1 (en) * 2017-11-27 2019-05-31 Nokia Technologies Oy Joint beam reporting for wireless networks
US11284396B2 (en) 2018-03-19 2022-03-22 Qualcomm Incorporated Techniques for determining beams for beamforming wireless communications
AU2018421975B2 (en) 2018-05-04 2022-04-07 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
US11349534B2 (en) 2018-07-06 2022-05-31 Nec Corporation Multi-TRP codebook
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
KR102644451B1 (ko) 2019-08-01 2024-03-06 후아웨이 테크놀러지 컴퍼니 리미티드 다중 안테나 네트워크 엔티티 및 무선 통신 장치를 위한 적응형 크로네커 곱 mimo 프리코딩 및 해당 방법
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
WO2013067657A1 (en) * 2011-11-11 2013-05-16 Telefonaktiebolaget L M 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
US9473227B2 (en) * 2012-08-26 2016-10-18 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
CN104956606B (zh) * 2013-01-25 2019-11-05 交互数字专利控股公司 用于确定资源的方法和无线发射/接收单元

Also Published As

Publication number Publication date
WO2014117352A1 (en) 2014-08-07
BR112015018024B1 (pt) 2023-03-28
EP2951933A4 (en) 2016-10-12
WO2014117748A1 (en) 2014-08-07
EP2951933A1 (en) 2015-12-09
US9497002B2 (en) 2016-11-15
BR112015018024A2 (pt) 2017-07-11
JP6227675B2 (ja) 2017-11-08
KR20150118165A (ko) 2015-10-21
JP2016511572A (ja) 2016-04-14
EP2951933B1 (en) 2020-08-19
KR101735092B1 (ko) 2017-05-12
US20160028519A1 (en) 2016-01-28

Similar Documents

Publication Publication Date Title
ES2831624T3 (es) Realimentación de CSI MIMO 3D basada en puertos de elevación virtuales
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
ES2808598T3 (es) Notificación de información de estado del canal (csi) periódica y aperiódica para mimo
JP6629349B2 (ja) Fd−mimoのための増強されたcsiプロシージャ
ES2808566T3 (es) Precodificación lineal en sistemas MIMO de dimensión completa
ES2760614T3 (es) Selección de un patrón de señal de referencia
ES2659456T3 (es) Mejoras del equipo de usuario para la comunicación multipunto cooperativa
EP3391555B1 (en) Scheme for configuring reference signal and communicating channel state information in a wireless communication system using multiple antenna ports
JP6513814B2 (ja) Fd−mimoのための拡張csiフィードバック
CN106664192B (zh) 用于配置csi-rs天线端口的端口编号的方法和设备
JP6786479B2 (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
KR102073620B1 (ko) 무선 통신 시스템에서 하향링크 참조 신호 송수신 방법 및 장치
ES2719709T3 (es) Procedimiento y aparato para procesar canales de control y compartidos en un sistema LTE
KR20170117051A (ko) 고차 mu-mimo 를 위한 dmrs 강화
KR101647613B1 (ko) CoMP를 지원하는 ePDCCH 리소스 매핑에 대한 시그널링
WO2014210145A1 (en) Opportunistic activation of relays in cloud radio access networks
US20150289238A1 (en) Method and apparatus for spatial multiplexing in wireless communication system
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