JPWO2021186699A1 - - Google Patents

Info

Publication number
JPWO2021186699A1
JPWO2021186699A1 JP2022507985A JP2022507985A JPWO2021186699A1 JP WO2021186699 A1 JPWO2021186699 A1 JP WO2021186699A1 JP 2022507985 A JP2022507985 A JP 2022507985A JP 2022507985 A JP2022507985 A JP 2022507985A JP WO2021186699 A1 JPWO2021186699 A1 JP WO2021186699A1
Authority
JP
Japan
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.)
Pending
Application number
JP2022507985A
Other languages
Japanese (ja)
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 filed Critical
Publication of JPWO2021186699A1 publication Critical patent/JPWO2021186699A1/ja
Pending 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
    • H04B7/0617—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
    • H04B7/0413—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
    • H04B7/06—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
    • H04B7/0634—Antenna weights or vector/matrix coefficients
    • 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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Radio Transmission System (AREA)
JP2022507985A 2020-03-19 2020-03-19 Pending JPWO2021186699A1 (https=)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/012417 WO2021186699A1 (ja) 2020-03-19 2020-03-19 無線通信方法及び無線通信システム

Publications (1)

Publication Number Publication Date
JPWO2021186699A1 true JPWO2021186699A1 (https=) 2021-09-23

Family

ID=77771904

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022507985A Pending JPWO2021186699A1 (https=) 2020-03-19 2020-03-19

Country Status (3)

Country Link
US (1) US12199710B2 (https=)
JP (1) JPWO2021186699A1 (https=)
WO (1) WO2021186699A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7513123B2 (ja) * 2021-01-26 2024-07-09 日本電信電話株式会社 通信路推定方法および無線通信装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005065242A (ja) * 2003-07-28 2005-03-10 Matsushita Electric Ind Co Ltd 無線通信装置および無線通信方法
JP2012209742A (ja) * 2011-03-29 2012-10-25 Sharp Corp 基地局装置、端末装置、通信システム、通信方法
JP2016500942A (ja) * 2012-09-28 2016-01-14 インターデイジタル パテント ホールディングス インコ ＷｉＦｉビームフォーミング、フィードバックおよびサウンディング（ＷｉＢＥＡＭ）のための方法
US20190319677A1 (en) * 2018-04-13 2019-10-17 Peraso Technologies Inc. Single-carrier wideband beamforming method and system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0617044A2 (pt) * 2005-09-29 2011-07-12 Interdigital Tech Corp sistema de múltiplo acesso por divisão de freqüências e portadora única com base em formação de feixes mimo
JP4775288B2 (ja) * 2006-04-27 2011-09-21 ソニー株式会社 無線通信システム、無線通信装置及び無線通信方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005065242A (ja) * 2003-07-28 2005-03-10 Matsushita Electric Ind Co Ltd 無線通信装置および無線通信方法
JP2012209742A (ja) * 2011-03-29 2012-10-25 Sharp Corp 基地局装置、端末装置、通信システム、通信方法
JP2016500942A (ja) * 2012-09-28 2016-01-14 インターデイジタル パテント ホールディングス インコ ＷｉＦｉビームフォーミング、フィードバックおよびサウンディング（ＷｉＢＥＡＭ）のための方法
US20190319677A1 (en) * 2018-04-13 2019-10-17 Peraso Technologies Inc. Single-carrier wideband beamforming method and system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
栗山 圭太、福園隼人、吉岡正文、立田努: "FIR型送信ビーム形成と双方向受信等化を適用した広帯域シングルキャリアMIMOシステム", 電子情報通信学会２０１９年総合大会講演論文集 通信１ B-5-105, JPN6024027146, 5 March 2019 (2019-03-05), pages 371, ISSN: 0005364301 *

Also Published As

Publication number Publication date
WO2021186699A1 (ja) 2021-09-23
US12199710B2 (en) 2025-01-14
US20230106272A1 (en) 2023-04-06

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