JP7552737B2 - 通信路推定方法および無線通信装置 - Google Patents

通信路推定方法および無線通信装置 Download PDF

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Publication number
JP7552737B2
JP7552737B2 JP2022577837A JP2022577837A JP7552737B2 JP 7552737 B2 JP7552737 B2 JP 7552737B2 JP 2022577837 A JP2022577837 A JP 2022577837A JP 2022577837 A JP2022577837 A JP 2022577837A JP 7552737 B2 JP7552737 B2 JP 7552737B2
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JP
Japan
Prior art keywords
receiving
transmitting
station
training signal
antennas
Prior art date
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JP2022577837A
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English (en)
Japanese (ja)
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JPWO2022162739A1 (https=
Inventor
圭太 栗山
隼人 福園
利文 宮城
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.)
NTT Inc
NTT Inc USA
Original Assignee
Nippon Telegraph and Telephone Corp
NTT Inc USA
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Publication of JPWO2022162739A1 publication Critical patent/JPWO2022162739A1/ja
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Publication of JP7552737B2 publication Critical patent/JP7552737B2/ja
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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
    • H04B7/0413—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
    • H04B7/0417—Feedback 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • 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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • 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)
  • Radio Transmission System (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
JP2022577837A 2021-01-26 2021-01-26 通信路推定方法および無線通信装置 Active JP7552737B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/002681 WO2022162739A1 (ja) 2021-01-26 2021-01-26 通信路推定方法および無線通信装置

Publications (2)

Publication Number Publication Date
JPWO2022162739A1 JPWO2022162739A1 (https=) 2022-08-04
JP7552737B2 true JP7552737B2 (ja) 2024-09-18

Family

ID=82653131

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022577837A Active JP7552737B2 (ja) 2021-01-26 2021-01-26 通信路推定方法および無線通信装置

Country Status (3)

Country Link
US (1) US12273178B2 (https=)
JP (1) JP7552737B2 (https=)
WO (1) WO2022162739A1 (https=)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002237766A (ja) 2001-02-08 2002-08-23 Nec Corp 適応アンテナ受信装置
JP2015500602A (ja) 2011-12-08 2015-01-05 インターデイジタル パテント ホールディングス インコーポレイテッド ミリ波通信システムの方法および装置
US20170317724A1 (en) 2016-05-02 2017-11-02 Amir Keyvan Khandani Instantaneous beamforming exploiting user physical signatures

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6470192B1 (en) * 1999-08-16 2002-10-22 Telefonaktiebolaget Lm Ericcson (Publ) Method of an apparatus for beam reduction and combining in a radio communications system
WO2006107230A1 (en) * 2005-03-30 2006-10-12 Intel Corporation Multiple-input multiple-output multicarrier communication system with joint transmitter and receiver adaptive beamforming for enhanced signal-to-noise ratio
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002237766A (ja) 2001-02-08 2002-08-23 Nec Corp 適応アンテナ受信装置
JP2015500602A (ja) 2011-12-08 2015-01-05 インターデイジタル パテント ホールディングス インコーポレイテッド ミリ波通信システムの方法および装置
US20170317724A1 (en) 2016-05-02 2017-11-02 Amir Keyvan Khandani Instantaneous beamforming exploiting user physical signatures

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
栗山 圭太ほか，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，2019年電子情報通信学会総合大会講演論文集 通信1，2019年03月05日，p. 371

Also Published As

Publication number Publication date
JPWO2022162739A1 (https=) 2022-08-04
WO2022162739A1 (ja) 2022-08-04
US20240072876A1 (en) 2024-02-29
US12273178B2 (en) 2025-04-08

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