DE602004011999D1 - Mehrbenutzer-übertragungssystem - Google Patents

Mehrbenutzer-übertragungssystem

Info

Publication number
DE602004011999D1
DE602004011999D1 DE602004011999T DE602004011999T DE602004011999D1 DE 602004011999 D1 DE602004011999 D1 DE 602004011999D1 DE 602004011999 T DE602004011999 T DE 602004011999T DE 602004011999 T DE602004011999 T DE 602004011999T DE 602004011999 D1 DE602004011999 D1 DE 602004011999D1
Authority
DE
Germany
Prior art keywords
user
transmission system
transmission
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
DE602004011999T
Other languages
English (en)
Other versions
DE602004011999T2 (de
Inventor
Gerhard Bauch
Pedro Tejera
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 Docomo Inc
Original Assignee
NTT Docomo 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 NTT Docomo Inc filed Critical NTT Docomo Inc
Publication of DE602004011999D1 publication Critical patent/DE602004011999D1/de
Application granted granted Critical
Publication of DE602004011999T2 publication Critical patent/DE602004011999T2/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
    • H04L25/0248—Eigen-space methods
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/023—Multiplexing of multicarrier modulation signals
    • 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
    • H04B7/0426—Power distribution
    • H04B7/0434—Power distribution using multiple eigenmodes
    • H04B7/0439—Power distribution using multiple eigenmodes utilizing channel inversion
    • 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
    • H04B7/0426—Power distribution
    • H04B7/0434—Power distribution using multiple eigenmodes
    • H04B7/0443—Power distribution using multiple eigenmodes utilizing "waterfilling" technique
DE602004011999T 2004-11-05 2004-11-05 Mehrbenutzer-übertragungssystem Active DE602004011999T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2004/012571 WO2006048037A1 (en) 2004-11-05 2004-11-05 Multiuser transmission system

Publications (2)

Publication Number Publication Date
DE602004011999D1 true DE602004011999D1 (de) 2008-04-03
DE602004011999T2 DE602004011999T2 (de) 2009-03-05

Family

ID=34959166

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004011999T Active DE602004011999T2 (de) 2004-11-05 2004-11-05 Mehrbenutzer-übertragungssystem

Country Status (4)

Country Link
EP (1) EP1807991B1 (de)
JP (1) JP4536780B2 (de)
DE (1) DE602004011999T2 (de)
WO (1) WO2006048037A1 (de)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101249359B1 (ko) * 2006-08-18 2013-04-01 삼성전자주식회사 다중 입력 다중 출력을 지원하는 직교 주파수 분할 다중화 시스템에서 채널 품질 정보를 송수신하는 방법 및 장치
KR100951822B1 (ko) * 2007-03-14 2010-04-12 삼성전자주식회사 다중 안테나 무선통신 시스템에서 하향링크 스케줄링 장치및 방법
EP2171879B1 (de) 2007-07-18 2019-06-19 Marvell World Trade Ltd. Zugangspunkt mit simultaner downlink-übertragung unabhängiger daten für mehrere client-stationen
US8149811B2 (en) 2007-07-18 2012-04-03 Marvell World Trade Ltd. Wireless network with simultaneous uplink transmission of independent data from multiple client stations
US8009757B2 (en) 2007-11-12 2011-08-30 Motorola Mobility, Inc. Method and apparatus for encoding a modulated signal in a communication system
JP5193644B2 (ja) * 2008-03-26 2013-05-08 株式会社東芝 無線通信装置、プログラムおよび方法
CN102017448B (zh) * 2008-04-30 2015-07-29 皇家飞利浦电子股份有限公司 用于向无线电站用信令告知资源的方法及用于此的无线电站
EP2124351B1 (de) * 2008-05-20 2010-12-15 NTT DoCoMo, Inc. Räumliche Unterkanalauswahl und Vorcodiervorrichtung
EP2134003B1 (de) * 2008-06-06 2011-12-28 NTT DoCoMo, Inc. Benutzerauswahlvorrichtung und -verfahren für ein mobiles Kommunikationssystem
DE602008003771D1 (de) * 2008-06-06 2011-01-13 Ntt Docomo Inc Benutzerauswahlvorrichtung für ein mobiles Kommunikationssystem
US8982889B2 (en) 2008-07-18 2015-03-17 Marvell World Trade Ltd. Preamble designs for sub-1GHz frequency bands
US8351536B2 (en) 2008-09-11 2013-01-08 Motorola Mobility Llc Wireless communication of data symbols
JP5398722B2 (ja) * 2008-09-22 2014-01-29 パナソニック株式会社 無線通信装置及び無線通信方法
EP2448140A2 (de) * 2009-06-25 2012-05-02 Pantech Co., Ltd Verfahren zur auswahl einer vorcodierers in einem drahtlosen kommunikationssystem und vorrichtung damit, feedback-verfahren zur kanalinformation eines endgeräts und verfahren zum empfangen von kanalinformation aus einer basisstation
US9077594B2 (en) 2009-07-23 2015-07-07 Marvell International Ltd. Coexistence of a normal-rate physical layer and a low-rate physical layer in a wireless network
JP5627080B2 (ja) * 2010-05-31 2014-11-19 シャープ株式会社 通信システム、送信装置、送信制御方法、送信制御プログラム、及びプロセッサ
EP2410705B1 (de) 2010-07-20 2015-08-19 NTT DoCoMo, Inc. Vorrichtung und Verfahren zur Berechnung der Empfangsparameter für ein MIMO-System
JP5478525B2 (ja) * 2011-01-31 2014-04-23 日本電信電話株式会社 送信方法、及び送信装置
KR102029272B1 (ko) 2011-08-29 2019-10-07 마벨 월드 트레이드 리미티드 무선 네트워크에서 노멀 속도 물리 계층과 저속 물리 계층의 공존
CN104883244B (zh) * 2015-03-25 2019-05-21 山东科技大学 一种基于负熵的改进熵分复用方法
CN108604978B (zh) 2016-01-26 2020-09-08 华为技术有限公司 用于管理基站与多个用户设备之间的全双工通信的设备和方法
JP6422456B2 (ja) * 2016-02-23 2018-11-14 三菱電機株式会社 信号処理装置及びアレーアンテナ装置
EP3404843B1 (de) 2017-05-17 2022-12-07 Mitsubishi Electric R&D Centre Europe B.V. Verfahren zur ermöglichung von analoger und digitaler strahlformung
US20220271852A1 (en) * 2021-02-22 2022-08-25 Samsung Electronics Co., Ltd. Multiple antenna channel tracking under practical impairment

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3798325B2 (ja) * 2002-03-05 2006-07-19 日本電信電話株式会社 送信装置
JP4350491B2 (ja) * 2002-12-05 2009-10-21 パナソニック株式会社 無線通信システム、無線通信方法、及び無線通信装置
JP4287670B2 (ja) * 2003-02-18 2009-07-01 パナソニック株式会社 通信装置及び通信方法

Also Published As

Publication number Publication date
EP1807991B1 (de) 2008-02-20
EP1807991A1 (de) 2007-07-18
JP2008519510A (ja) 2008-06-05
DE602004011999T2 (de) 2009-03-05
JP4536780B2 (ja) 2010-09-01
WO2006048037A1 (en) 2006-05-11

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Legal Events

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