BR112016008545A2 - métodos e aparelho para retorno de informação de estado de canal - Google Patents

métodos e aparelho para retorno de informação de estado de canal

Info

Publication number
BR112016008545A2
BR112016008545A2 BR112016008545A BR112016008545A BR112016008545A2 BR 112016008545 A2 BR112016008545 A2 BR 112016008545A2 BR 112016008545 A BR112016008545 A BR 112016008545A BR 112016008545 A BR112016008545 A BR 112016008545A BR 112016008545 A2 BR112016008545 A2 BR 112016008545A2
Authority
BR
Brazil
Prior art keywords
state information
channel state
methods
returning channel
stations
Prior art date
Application number
BR112016008545A
Other languages
English (en)
Portuguese (pt)
Inventor
Denise Barriac Gwendolyn
Sampath Hemanth
Vermani Sameer
Merlin Simone
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 BR112016008545A2 publication Critical patent/BR112016008545A2/pt

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)
BR112016008545A 2013-10-17 2014-10-15 métodos e aparelho para retorno de informação de estado de canal BR112016008545A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201361892314P 2013-10-17 2013-10-17
US14/513,654 US20150110046A1 (en) 2013-10-17 2014-10-14 Methods and apparatus for channel state information feedback
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
BR112016008545A2 true BR112016008545A2 (pt) 2017-09-12

Family

ID=52826106

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112016008545A BR112016008545A2 (pt) 2013-10-17 2014-10-15 métodos e aparelho para retorno de informação de estado de canal

Country Status (9)

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

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CN109245807B (zh) 2013-06-25 2019-11-19 华为技术有限公司 上行多用户数据传输方法及上行多用户输入输出系统
US10027512B2 (en) * 2014-01-06 2018-07-17 Lg Electronics Inc. Method and apparatus for sounding in wireless communication system
US9479240B1 (en) * 2014-01-31 2016-10-25 Quantenna Communications, Inc. Composite beamforming to coordinate concurrent WLAN links
US10034288B2 (en) * 2014-03-03 2018-07-24 Lg Electronics Inc. Method and apparatus for transmitting frame in wireless LAN
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
US10278210B2 (en) * 2014-06-27 2019-04-30 Wilus Institute Of Standards And Technology Inc. Wireless communication method for simultaneous data transmission, and wireless communication terminal using same
CN107079485B (zh) 2014-06-27 2020-10-30 泰科弗勒克斯公司 用于发送数据的方法和装置
US10375679B2 (en) 2014-12-05 2019-08-06 Marvell World Trade Ltd. Trigger frame format for orthogonal frequency division multiple access (OFDMA) communication
US10200101B2 (en) 2015-03-02 2019-02-05 Qualcomm Incorporated Methods and apparatus for channel state information sounding and feedback
US10111132B2 (en) 2015-03-02 2018-10-23 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
WO2017000308A1 (zh) * 2015-07-02 2017-01-05 华为技术有限公司 传输信道状态信息的方法、接入点和站点
US20170054542A1 (en) * 2015-08-19 2017-02-23 Qualcomm Incorporated Sounding design for channel feedback
CN114143895B (zh) * 2015-08-31 2024-03-12 松下知识产权经营株式会社 用于实现通信过程的集成电路
US10291299B2 (en) 2015-09-07 2019-05-14 Kabushiki Kaisha Toshiba Wireless communication device
CN113839760B (zh) * 2015-09-25 2023-03-28 中兴通讯股份有限公司 数据传输方法和节点
US9577728B1 (en) 2015-09-25 2017-02-21 Qualcomm Incorporated Multiple user MIMO rate prediction based on single user SNR feedback
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
CN113596977A (zh) * 2016-01-07 2021-11-02 松下知识产权经营株式会社 终端
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
US12408042B2 (en) * 2019-02-27 2025-09-02 Northeastern University Method for spectrum sharing by primary and secondary networks based on cognitive beamforming
CN119255307A (zh) * 2019-07-02 2025-01-03 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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US20070153731A1 (en) * 2006-01-05 2007-07-05 Nadav Fine Varying size coefficients in a wireless local area network return channel
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
WO2011108832A2 (ko) * 2010-03-05 2011-09-09 엘지전자 주식회사 무선랜 시스템에서 다중 안테나 기법을 기반으로 한 ppdu 수신 방법 및 장치
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
US9337954B2 (en) * 2010-07-28 2016-05-10 Qualcomm Incorporated Protocol for channel state information feedback
WO2012033877A1 (en) * 2010-09-08 2012-03-15 Mediatek Singapore Pte. Ltd. Psmp-based downlink multi-user mimo communications
US9077498B2 (en) * 2010-09-29 2015-07-07 Qualcomm Incorporated Systems and methods for communication of channel state information
TWI637648B (zh) * 2012-04-30 2018-10-01 內數位專利控股公司 電氣和電子工程師協會（ieee）802.11站（sta）及在其中使用的方法

Also Published As

Publication number Publication date
US20150110046A1 (en) 2015-04-23
TW201521377A (zh) 2015-06-01
CA2926091A1 (en) 2015-04-23
CN105637772A (zh) 2016-06-01
JP2016540411A (ja) 2016-12-22
KR20160074533A (ko) 2016-06-28
WO2015057772A1 (en) 2015-04-23
EP3058666A1 (en) 2016-08-24

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE A 6A ANUIDADE.

B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements
B350 Update of information on the portal [chapter 15.35 patent gazette]