CA3008326C - Energy-efficient Channel State Information (CSI) measurement for full-dimension, multi-input, multi-output (FD-MIMO) systems - Google Patents

Energy-efficient Channel State Information (CSI) measurement for full-dimension, multi-input, multi-output (FD-MIMO) systems

Info

Publication number
CA3008326C
CA3008326C CA3008326A CA3008326A CA3008326C CA 3008326 C CA3008326 C CA 3008326C CA 3008326 A CA3008326 A CA 3008326A CA 3008326 A CA3008326 A CA 3008326A CA 3008326 C CA3008326 C CA 3008326C
Authority
CA
Canada
Prior art keywords
csi
resources
subset
reporting
antenna ports
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
CA3008326A
Other languages
English (en)
French (fr)
Other versions
CA3008326A1 (en
Inventor
Chao Wei
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 CA3008326A1 publication Critical patent/CA3008326A1/en
Application granted granted Critical
Publication of CA3008326C publication Critical patent/CA3008326C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621Feedback content
    • H04B7/0626Channel coefficients, e.g. channel state information [CSI]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413MIMO systems
    • H04B7/0452Multi-user MIMO systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413MIMO systems
    • H04B7/0456Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0478Special codebook structures directed to feedback optimisation
    • 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
    • H04B7/0413MIMO systems
    • H04B7/0456Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0478Special codebook structures directed to feedback optimisation
    • H04B7/0481Special codebook structures directed to feedback optimisation using subset selection of codebooks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413MIMO systems
    • H04B7/0456Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0486Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking channel rank into account
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026Transmission of channel quality indication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/20Arrangements for detecting or preventing errors in the information received using signal quality detector
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0026Division using four or more dimensions, e.g. beam steering or quasi-co-location [QCL]
    • 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
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signalling for the administration of the divided path, e.g. signalling of configuration information
    • 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
    • H04L5/0053Allocation of signalling, i.e. of overhead other than pilot signals
    • H04L5/0057Physical resource allocation for CQI
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
CA3008326A 2016-01-28 2016-11-07 Energy-efficient Channel State Information (CSI) measurement for full-dimension, multi-input, multi-output (FD-MIMO) systems Active CA3008326C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CNPCT/CN2016/072502 2016-01-28
PCT/CN2016/072502 WO2017128175A1 (en) 2016-01-28 2016-01-28 Energy efficient csi measurement for fd-mimo
PCT/CN2016/104860 WO2017128800A1 (en) 2016-01-28 2016-11-07 Energy efficient csi measurement for fd-mimo

Publications (2)

Publication Number Publication Date
CA3008326A1 CA3008326A1 (en) 2017-08-03
CA3008326C true CA3008326C (en) 2024-10-29

Family

ID=59397121

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3008326A Active CA3008326C (en) 2016-01-28 2016-11-07 Energy-efficient Channel State Information (CSI) measurement for full-dimension, multi-input, multi-output (FD-MIMO) systems

Country Status (8)

Country Link
US (2) US11139875B2 (enExample)
EP (1) EP3409041B1 (enExample)
JP (1) JP7017513B2 (enExample)
CN (1) CN108605237B (enExample)
AU (1) AU2016390195B2 (enExample)
BR (1) BR112018015225B1 (enExample)
CA (1) CA3008326C (enExample)
WO (2) WO2017128175A1 (enExample)

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10826577B2 (en) * 2015-01-19 2020-11-03 Qualcomm Incorporated Enhanced CSI feedback for FD-MIMO
US10211964B2 (en) * 2015-07-29 2019-02-19 Samsung Electronics Co., Ltd. Method and apparatus for CSI reporting
EP4478622A3 (en) 2016-01-07 2025-03-12 QUALCOMM Incorporated Enhanced csi feedback for fd-mimo
WO2017128175A1 (en) * 2016-01-28 2017-08-03 Qualcomm Incorporated Energy efficient csi measurement for fd-mimo
US10716020B2 (en) * 2016-02-23 2020-07-14 Samsung Electronics Co., Ltd. Method and apparatus for measurement reference signal
CN107135025A (zh) * 2016-02-29 2017-09-05 株式会社Ntt都科摩 信道状态信息参考信号发送方法及基站
CN111585699B (zh) * 2016-12-03 2022-05-10 极光技术咨询有限责任公司 一种被用于多天线传输的ue、基站中的方法和装置
AU2017383771B2 (en) * 2016-12-20 2022-02-24 Sharp Kabushiki Kaisha Base station apparatus, terminal apparatus, communication method, and integrated circuit
JP2020031248A (ja) * 2016-12-20 2020-02-27 シャープ株式会社 基地局装置、端末装置、通信方法、および、集積回路
CN110249571B (zh) * 2017-01-09 2022-05-10 瑞典爱立信有限公司 用于半持续csi-rs的可靠动态指示的系统和方法
KR102823161B1 (ko) * 2017-02-07 2025-06-20 삼성전자 주식회사 차세대 이동통신 시스템에서 QoS를 처리하는 PDCP 계층의 동작 방법 및 장치
CA3053235C (en) * 2017-02-10 2023-02-28 Lg Electronics Inc. Method for measuring and reporting channel state information in wireless communication system and device therefor
KR102721403B1 (ko) * 2017-02-24 2024-10-25 삼성전자주식회사 무선 통신 시스템에서 기준 신호를 전송하기 위한 장치 및 방법
US10812162B2 (en) * 2017-03-21 2020-10-20 Samsung Electronics Co., Ltd. Method and apparatus for indication of reference signals in wireless systems
KR102294661B1 (ko) * 2017-03-23 2021-08-30 삼성전자 주식회사 이동 통신 시스템에서의 데이터 전송 방법 및 장치
US10735072B2 (en) 2017-03-23 2020-08-04 Samsung Electronics Co., Ltd Method and apparatus for transmitting data in wireless communication system
US10887939B2 (en) 2017-08-10 2021-01-05 Comcast Cable Communications, Llc Transmission power control for beam failure recovery requests
US11950287B2 (en) * 2017-08-10 2024-04-02 Comcast Cable Communications, Llc Resource configuration of beam failure recovery request transmission
US10855359B2 (en) 2017-08-10 2020-12-01 Comcast Cable Communications, Llc Priority of beam failure recovery request and uplink channels
US11337265B2 (en) 2017-08-10 2022-05-17 Comcast Cable Communications, Llc Beam failure recovery request transmission
CN108092754B (zh) * 2017-11-17 2021-10-26 中兴通讯股份有限公司 一种参考信号信道特征配置方法和装置、及通信设备
KR102718035B1 (ko) * 2017-11-17 2024-10-15 지티이 코포레이션 기준 신호 구성
KR102523434B1 (ko) * 2017-11-17 2023-04-19 삼성전자주식회사 무선 통신 시스템에서 기준 신호 설정 방법 및 장치
KR102878236B1 (ko) * 2018-01-11 2025-10-30 샤프 가부시키가이샤 사용자 장비들, 기지국들 및 방법들
US10855432B2 (en) 2018-01-11 2020-12-01 Sharp Kabushiki Kaisha User equipments, base stations and methods
CN113016151B (zh) * 2018-08-09 2022-11-08 中兴通讯股份有限公司 用于无线系统的天线组操作
WO2020051922A1 (en) * 2018-09-15 2020-03-19 Qualcomm Incorporated Csi for non-coherent joint transmission
US10523287B1 (en) * 2018-11-28 2019-12-31 Telefonaktiebolaget Lm Ericsson (Publ) Transmission parameter assignment for MU-MIMO wireless devices
EP4009722A4 (en) * 2019-08-02 2023-05-03 Ntt Docomo, Inc. TERMINAL AND WIRELESS COMMUNICATION METHOD
US11558095B2 (en) 2019-08-26 2023-01-17 Qualcomm Incorporated Channel state information measurement adaptation to maximum multiple-input multiple-output layers
EP4102883A4 (en) * 2020-02-04 2023-10-18 Ntt Docomo, Inc. USER TERMINAL, WIRELESS COMMUNICATION METHOD AND BASE STATION
BR112022016953A2 (pt) * 2020-02-27 2022-10-25 Lenovo Beijing Ltd Método e aparelho para comunicação sem fio
KR20230008708A (ko) 2020-05-06 2023-01-16 퀄컴 인코포레이티드 물리 계층 링크 간 간섭 측정 및 보고
CN111800175B (zh) * 2020-06-01 2021-08-06 华南理工大学 基于码本的多天线有限字符输入预编码和时隙分配方法
WO2022009417A1 (ja) * 2020-07-10 2022-01-13 株式会社Nttドコモ 端末、無線通信方法及び基地局
US11818729B2 (en) * 2020-09-21 2023-11-14 Qualcomm Incorporated Reporting on lean synchronization signal blocks to enable beam management
WO2022077414A1 (en) * 2020-10-16 2022-04-21 Qualcomm Incorporated Channel state information reference signal (csi-rs) resource activation or deactivation within a resource set
US20220140878A1 (en) * 2020-11-02 2022-05-05 Samsung Electronics Co., Ltd. Method and apparatus for beam measurement and reporting in a wireless communication system
CN115190498B (zh) * 2021-04-02 2024-04-26 大唐移动通信设备有限公司 增强的csi-rs传输、发送反馈信息的方法、装置、设备及介质
WO2022261923A1 (en) * 2021-06-18 2022-12-22 Lenovo (Beijing) Limited Resource measurement restriction for beam management
WO2023050312A1 (en) * 2021-09-30 2023-04-06 Qualcomm Incorporated Csi-rs resource configuration for csi measurement
CN119422345A (zh) * 2022-04-15 2025-02-11 欧芬诺有限责任公司 能量节省中的信道状态信息配置和报告
US20250254553A1 (en) * 2022-04-21 2025-08-07 Lg Electronics Inc. Method and device for transmitting/receiving channel state information in wireless communication system
CN117795889A (zh) * 2022-07-29 2024-03-29 北京小米移动软件有限公司 信道状态信息的测量方法、装置、通信设备及存储介质
GB2629027A (en) * 2023-04-14 2024-10-16 Nec Corp Communication system
WO2024227281A1 (en) * 2023-05-04 2024-11-07 Qualcomm Incorporated Identification of quantity of channel state information processing units
WO2024234143A1 (en) * 2023-05-12 2024-11-21 Nokia Shanghai Bell Co., Ltd. Enhanced csi reporting activation/deactivation operation
CN117598004A (zh) * 2023-09-28 2024-02-23 北京小米移动软件有限公司 信道状态信息csi报告配置处理方法、通信设备及存储介质
WO2025097348A1 (en) * 2023-11-09 2025-05-15 Huawei Technologies Co., Ltd. Active csi resources and active ports counting for network energy saving

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9007988B2 (en) * 2008-02-11 2015-04-14 Texas Instruments Incorporated Partial CQI feedback in wireless networks
CN102347817B (zh) 2010-08-02 2014-01-08 华为技术有限公司 通知参考信号配置信息的方法及设备
CN107769900B (zh) * 2011-02-07 2020-12-29 交互数字专利控股公司 一种载波聚合方法
US10085164B2 (en) 2011-04-28 2018-09-25 Qualcomm Incorporated System and method for managing invalid reference subframes for channel state information feedback
CN102869105B (zh) * 2011-07-07 2016-03-30 华为技术有限公司 一种配置参考信号的方法、UE及eNB
CN103220066B (zh) * 2012-01-18 2017-04-26 华为技术有限公司 测量方法,csi‑rs资源共享方法和装置
CN103220068B (zh) * 2012-01-19 2018-10-26 中兴通讯股份有限公司 信道状态信息处理方法、装置及系统
CN103259583B (zh) * 2012-02-20 2016-12-07 华为技术有限公司 传输数据的方法、用户设备和基站
US9526049B2 (en) * 2012-02-23 2016-12-20 Lg Electronics Inc. Method for performing handover in a C-RAN system, and apparatus therefor
US9801087B2 (en) * 2012-03-08 2017-10-24 Lg Electronics Inc. Method and apparatus for transmitting information for reporting in wireless communication system
WO2013141595A1 (ko) * 2012-03-22 2013-09-26 엘지전자 주식회사 상향링크 신호 전송 또는 수신 방법
KR20150009566A (ko) 2012-05-08 2015-01-26 마벨 월드 트레이드 리미티드 협력 다중포인트 전송에서 피드백을 보고하기 위한 방법 및 시스템
CN103516464B (zh) * 2012-06-20 2018-04-10 中兴通讯股份有限公司 信道状态信息报告的反馈方法及装置
US20130343299A1 (en) * 2012-06-21 2013-12-26 Samsung Electronics Co., Ltd Method for cqi feedback without spatial feedback (pmi/ri) for tdd coordinated multi-point and carrier aggregation scenarios
EP2685755B1 (en) * 2012-07-12 2015-12-09 Alcatel Lucent Regional classification of a mobile terminal within a cell
US20140029458A1 (en) 2012-07-24 2014-01-30 Acer Incorporated Apparatuses and methods for signaling coordinated multi-point (comp) measurement configuration
US9456358B2 (en) * 2012-08-13 2016-09-27 Qualcomm Incorporated Method and apparatus for indicating active channel state information reference signal (CSI-RS) configurations
KR101988285B1 (ko) 2012-09-20 2019-06-12 삼성전자 주식회사 무선 통신 시스템에서 채널 상태 정보 송수신 방법 및 장치
US9591632B2 (en) * 2012-11-06 2017-03-07 Lg Electronics Inc. Method and apparatus for transmitting and receiving data in a wireless communication system
US9967763B2 (en) * 2013-03-08 2018-05-08 Nokia Solutions And Networks Oy Evaluation of throughput of aggregated connections
CN110545134B (zh) * 2013-12-20 2022-10-21 北京三星通信技术研究有限公司 信道状态信息汇报的方法及装置
US10721720B2 (en) * 2014-01-30 2020-07-21 Qualcomm Incorporated Cell On-Off procedure for dual connectivity
US20160149679A1 (en) * 2014-10-10 2016-05-26 Telefonaktiebolaget L M Ericsson (Publ) Method for dynamic csi feedback
DK3205040T3 (en) * 2014-10-10 2018-03-26 Ericsson Telefon Ab L M Process for dynamic CSI feedback
US10826577B2 (en) * 2015-01-19 2020-11-03 Qualcomm Incorporated Enhanced CSI feedback for FD-MIMO
US10079665B2 (en) * 2015-01-29 2018-09-18 Samsung Electronics Co., Ltd. System and method for link adaptation for low cost user equipments
EP3734896B1 (en) * 2015-06-17 2022-06-08 LG Electronics Inc. Method for channel state report using aperiodic channel state information-reference signal and apparatus therefor
HK1256570A1 (zh) * 2015-06-30 2019-09-27 诺基亚通信公司 控制信令
US10211964B2 (en) * 2015-07-29 2019-02-19 Samsung Electronics Co., Ltd. Method and apparatus for CSI reporting
US10200164B2 (en) * 2015-09-22 2019-02-05 Comcast Cable Communications, Llc Carrier activation in a multi-carrier wireless network
EP3399661A4 (en) * 2015-12-31 2019-09-04 LG Electronics Inc. -1- METHOD FOR CSI REPORTING IN A WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR
EP4478622A3 (en) * 2016-01-07 2025-03-12 QUALCOMM Incorporated Enhanced csi feedback for fd-mimo
WO2017128175A1 (en) * 2016-01-28 2017-08-03 Qualcomm Incorporated Energy efficient csi measurement for fd-mimo
KR20170112897A (ko) 2016-03-31 2017-10-12 삼성전자주식회사 이동 통신 시스템에서의 채널 상태 정보 보고 모드 설정 방법 및 장치

Also Published As

Publication number Publication date
US20180375560A1 (en) 2018-12-27
US20210351826A1 (en) 2021-11-11
US11581933B2 (en) 2023-02-14
EP3409041B1 (en) 2023-03-15
CN108605237B (zh) 2021-08-10
EP3409041A4 (en) 2019-09-18
WO2017128800A1 (en) 2017-08-03
JP2019511853A (ja) 2019-04-25
EP3409041A1 (en) 2018-12-05
AU2016390195A1 (en) 2018-07-05
BR112018015225B1 (pt) 2024-02-20
AU2016390195B2 (en) 2020-10-29
JP7017513B2 (ja) 2022-02-08
CA3008326A1 (en) 2017-08-03
BR112018015225A2 (pt) 2018-12-18
CN108605237A (zh) 2018-09-28
WO2017128175A1 (en) 2017-08-03
US11139875B2 (en) 2021-10-05

Similar Documents

Publication Publication Date Title
US11581933B2 (en) Energy efficient CSI measurement for FD-MIMO
EP3456117B1 (en) Hybrid class b fd-mimo
EP3482506B1 (en) Processing relaxation for aperiodic csi-rs
AU2017239113B2 (en) Enhanced hybrid CSI-RS for FD-MIMO
CN109155926B (zh) 用于增强型fd-mimo的动态csi-rs传输
KR102829587B1 (ko) Eb/fd-mimo 에 대한 csi 피드백 프로세싱 및 보고
EP3876431A1 (en) Beamforming in tdd mimo systems with asymmetric antenna configuration
WO2017167092A1 (en) Ue-rs-based open-loop and semi-open-loop mimo
WO2017049599A1 (en) Csi reporting for beamformed csi-rs based fd-mimo

Legal Events

Date Code Title Description
EEER Examination request

Effective date: 20211013

EEER Examination request

Effective date: 20211013

EEER Examination request

Effective date: 20211013

EEER Examination request

Effective date: 20211013

EEER Examination request

Effective date: 20211013

EEER Examination request

Effective date: 20211013

EEER Examination request

Effective date: 20211013

EEER Examination request

Effective date: 20211013

EEER Examination request

Effective date: 20211013