CA2926091A1 - Methods and apparatus for channel state information feedback - Google Patents

Methods and apparatus for channel state information feedback Download PDF

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Publication number
CA2926091A1
CA2926091A1 CA2926091A CA2926091A CA2926091A1 CA 2926091 A1 CA2926091 A1 CA 2926091A1 CA 2926091 A CA2926091 A CA 2926091A CA 2926091 A CA2926091 A CA 2926091A CA 2926091 A1 CA2926091 A1 CA 2926091A1
Authority
CA
Canada
Prior art keywords
message
transmitting
csi
stations
field
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.)
Abandoned
Application number
CA2926091A
Other languages
English (en)
French (fr)
Inventor
Simone Merlin
Gwendolyn Denise Barriac
Hemanth Sampath
Sameer Vermani
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 CA2926091A1 publication Critical patent/CA2926091A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [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
    • H04B7/0452—Multi-user MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0027—Scheduling of signalling, e.g. occurrence thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
CA2926091A 2013-10-17 2014-10-15 Methods and apparatus for channel state information feedback Abandoned CA2926091A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201361892314P 2013-10-17 2013-10-17
US61/892,314 2013-10-17
US14/513,654 US20150110046A1 (en) 2013-10-17 2014-10-14 Methods and apparatus for channel state information feedback
US14/513,654 2014-10-14
PCT/US2014/060592 WO2015057772A1 (en) 2013-10-17 2014-10-15 Methods and apparatus for channel state information feedback

Publications (1)

Publication Number Publication Date
CA2926091A1 true CA2926091A1 (en) 2015-04-23

Family

ID=52826106

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2926091A Abandoned CA2926091A1 (en) 2013-10-17 2014-10-15 Methods and apparatus for channel state information feedback

Country Status (9)

Country Link
US (1) US20150110046A1 (https=)
EP (1) EP3058666A1 (https=)
JP (1) JP2016540411A (https=)
KR (1) KR20160074533A (https=)
CN (1) CN105637772A (https=)
BR (1) BR112016008545A2 (https=)
CA (1) CA2926091A1 (https=)
TW (1) TW201521377A (https=)
WO (1) WO2015057772A1 (https=)

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US9479240B1 (en) * 2014-01-31 2016-10-25 Quantenna Communications, Inc. Composite beamforming to coordinate concurrent WLAN links
WO2015133751A1 (ko) * 2014-03-03 2015-09-11 엘지전자 주식회사 무선랜에서 프레임을 전송하는 방법 및 장치
KR20170017894A (ko) * 2014-06-09 2017-02-15 엘지전자 주식회사 프레임을 수신하는 방법 및 장치
US20150372795A1 (en) * 2014-06-18 2015-12-24 Mediatek Singapore Pte. Ltd. CSI Feedback Modes and Indication for Sub Channel Feedback in OFDMA Systems
EP3162152B1 (en) 2014-06-27 2024-10-09 Samsung Electronics Co., Ltd. Method and device for transmitting data
KR102297140B1 (ko) * 2014-06-27 2021-09-10 주식회사 윌러스표준기술연구소 데이터 동시 전송을 위한 무선 통신 방법 및 이를 이용한 무선 통신 단말
CN107431584B (zh) 2014-12-05 2020-11-03 马维尔国际有限公司 用于在无线通信网络中进行通信的方法和装置
US10111132B2 (en) 2015-03-02 2018-10-23 Qualcomm Incorporated Methods and apparatus for channel state information sounding and feedback
US10200101B2 (en) 2015-03-02 2019-02-05 Qualcomm Incorporated Methods and apparatus for channel state information sounding and feedback
EP3281484B1 (en) 2015-04-09 2021-03-24 NXP USA, Inc. Contention-based orthogonal frequency division multiple access (ofdma) communication
US10285187B2 (en) * 2015-05-05 2019-05-07 Qualcomm Incorporated Methods and apparatus for multiple user uplink
US10135957B2 (en) 2015-06-15 2018-11-20 Qualcomm Incorporated Methods and apparatus for communicating high efficiency control information
RU2683957C1 (ru) * 2015-07-02 2019-04-03 Хуавэй Текнолоджиз Ко., Лтд. Способ, точка доступа и станция для передачи информации о состоянии канала
US20170054542A1 (en) * 2015-08-19 2017-02-23 Qualcomm Incorporated Sounding design for channel feedback
CN113992246B (zh) * 2015-08-31 2024-10-22 松下知识产权经营株式会社 通信装置和通信方法
US10291299B2 (en) 2015-09-07 2019-05-14 Kabushiki Kaisha Toshiba Wireless communication device
US9577728B1 (en) 2015-09-25 2017-02-21 Qualcomm Incorporated Multiple user MIMO rate prediction based on single user SNR feedback
CN106559902B (zh) * 2015-09-25 2021-07-23 中兴通讯股份有限公司 一种数据传输方法和装置
US10143003B2 (en) * 2015-10-15 2018-11-27 Samsung Electronics Co., Ltd. Methods and apparatus for beamforming feedback in wireless systems
US10383092B2 (en) 2015-11-03 2019-08-13 Qualcomm Incorporated Beamforming report structure
US10742285B1 (en) * 2015-11-13 2020-08-11 Marvell International Ltd. Explicit multiuser beamforming training in a wireless local area network
JP6857852B2 (ja) * 2016-01-07 2021-04-14 パナソニックＩｐマネジメント株式会社 通信装置、通信方法および集積回路
CN107027145B (zh) * 2016-02-01 2021-01-01 华为技术有限公司 信道测量方法及装置
US20170279587A1 (en) * 2016-03-22 2017-09-28 Chittabrata Ghosh Method of sounding using manipulated null data packets (ndp)
US10517006B2 (en) 2016-04-13 2019-12-24 Qualcomm Incorporated Techniques for reporting channel feedback in wireless communications
CN106712815B (zh) * 2017-01-18 2020-06-19 西安交通大学 一种基于有效期检查的csi反馈开销降低方法
US10911120B2 (en) * 2017-07-24 2021-02-02 Qualcomm Incorporated Downlink (DL) coordinated beamforming protocols for WiFi
US11096132B2 (en) * 2018-07-26 2021-08-17 Mediatek Singapore Pte. Ltd. Joint sounding for multi-user communication in multi-AP WLAN
CN109510649B (zh) * 2018-12-28 2021-02-09 西安交通大学 基于csi准确性、有效性及稳定性的mu-mimo网络的数据传输方法
WO2020176704A1 (en) * 2019-02-27 2020-09-03 Northeastern University Method for spectrum sharing by primary and secondary networks based on cognitive beamforming
CN112188563B (zh) * 2019-07-02 2024-10-18 华为技术有限公司 协作通信方法、装置及系统
US11716121B2 (en) * 2019-10-25 2023-08-01 Intel Corporation NDPA for multi-AP coordinated beamforming (CBF) and multi-AP joint transmission (JT) in EHT
US11546023B2 (en) 2020-09-28 2023-01-03 Newracom, Inc. Frame exchange method for beamforming

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US8848816B2 (en) * 2008-05-21 2014-09-30 Qualcomm Incorporated Method and apparatus for determining the spatial channels in a spatial division multiple access (SDMA)-based wireless communication system
US9112741B2 (en) * 2009-09-18 2015-08-18 Qualcomm Incorporated Protocol to support adaptive station-dependent channel state information feedback rate in multi-user communication systems
US8811200B2 (en) * 2009-09-22 2014-08-19 Qualcomm Incorporated Physical layer metrics to support adaptive station-dependent channel state information feedback rate in multi-user communication systems
US8923219B2 (en) * 2010-02-17 2014-12-30 Qualcomm Incorporated Method and apparatus for supporting adaptive channel state information feedback rate in multi-user communication systems
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US8306010B2 (en) * 2010-04-28 2012-11-06 Intel Corporation Systems and methods for uplink multi-user multiple input multiple output (MU MIMO) medium access and error recovery
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US9077498B2 (en) * 2010-09-29 2015-07-07 Qualcomm Incorporated Systems and methods for communication of channel state information
US10932229B2 (en) * 2012-04-30 2021-02-23 Interdigital Patent Holdings, Inc. Method and apparatus for supporting coordinated orthogonal block-based resource allocation (COBRA) operations

Also Published As

Publication number Publication date
KR20160074533A (ko) 2016-06-28
BR112016008545A2 (pt) 2017-09-12
WO2015057772A1 (en) 2015-04-23
JP2016540411A (ja) 2016-12-22
CN105637772A (zh) 2016-06-01
EP3058666A1 (en) 2016-08-24
US20150110046A1 (en) 2015-04-23
TW201521377A (zh) 2015-06-01

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Legal Events

Date Code Title Description
FZDE Discontinued

Effective date: 20201015