IN2015DN01302A - - Google Patents

Info

Publication number
IN2015DN01302A
IN2015DN01302A IN1302DEN2015A IN2015DN01302A IN 2015DN01302 A IN2015DN01302 A IN 2015DN01302A IN 1302DEN2015 A IN1302DEN2015 A IN 1302DEN2015A IN 2015DN01302 A IN2015DN01302 A IN 2015DN01302A
Authority
IN
India
Prior art keywords
communications node
precoder matrix
ues
precoding
scheduling
Prior art date
Application number
Other languages
English (en)
Inventor
Yasushi Maruta
Duong Pham
Arun Gurung
Original Assignee
Nec Corp
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
Priority claimed from AU2012904070A external-priority patent/AU2012904070A0/en
Application filed by Nec Corp filed Critical Nec Corp
Publication of IN2015DN01302A publication Critical patent/IN2015DN01302A/en

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
    • H04B7/0413—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
    • H04B7/0413—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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03343—Arrangements at the transmitter end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • 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
    • H04B7/0636—Feedback format
    • H04B7/0645—Variable feedback
    • H04B7/065—Variable contents, e.g. long-term or short-short
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03891—Spatial equalizers
    • 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
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0482—Adaptive codebooks
    • 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
    • H04B7/0486—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking channel rank into account
    • 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
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • 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
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • 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
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0689—Hybrid systems, i.e. switching and simultaneous transmission using different transmission schemes, at least one of them being a diversity transmission scheme

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
IN1302DEN2015 2012-09-18 2013-09-13 IN2015DN01302A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2012904070A AU2012904070A0 (en) 2012-09-18 Method for Improving Transmission Capacity in a DL MU-MIMO Communications System
PCT/JP2013/075604 WO2014046273A1 (en) 2012-09-18 2013-09-13 Method for improving transmission capacity in a dl mu-mimo communications system

Publications (1)

Publication Number Publication Date
IN2015DN01302A true IN2015DN01302A (ko) 2015-07-03

Family

ID=50341572

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1302DEN2015 IN2015DN01302A (ko) 2012-09-18 2013-09-13

Country Status (7)

Country Link
US (1) US9473225B2 (ko)
EP (1) EP2898721B1 (ko)
JP (1) JP5900707B2 (ko)
CN (1) CN104662942B (ko)
AU (1) AU2013318923B2 (ko)
IN (1) IN2015DN01302A (ko)
WO (1) WO2014046273A1 (ko)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014046273A1 (en) * 2012-09-18 2014-03-27 Nec Corporation Method for improving transmission capacity in a dl mu-mimo communications system
JP6251118B2 (ja) * 2014-05-15 2017-12-20 日本電信電話株式会社 空間多重スケジューリング方法、基地局装置及びプログラム
JP6581530B2 (ja) * 2016-03-11 2019-09-25 株式会社Ｎｔｔドコモ 基地局
US10523287B1 (en) * 2018-11-28 2019-12-31 Telefonaktiebolaget Lm Ericsson (Publ) Transmission parameter assignment for MU-MIMO wireless devices
WO2020194428A1 (ja) * 2019-03-25 2020-10-01 三菱電機株式会社 下位無線基地局および空間多重ストリーム数の制御方法
CN114448481B (zh) * 2022-01-20 2023-05-05 重庆工程学院 一种车联网下基于用户调度的大规模mimo预编码方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101218775B (zh) 2005-09-30 2011-06-15 华为技术有限公司 多用户接入系统mimo-ofdm资源分配方法
US9755705B2 (en) 2008-08-07 2017-09-05 Qualcomm Incorporated Method and apparatus for supporting multi-user and single-user MIMO in a wireless communication system
CN101820405B (zh) * 2009-02-27 2013-11-06 富士通株式会社 多输入多输出合作通信方法、预编码装置和无线通信系统
US8711716B2 (en) 2009-06-19 2014-04-29 Texas Instruments Incorporated Multiple CQI feedback for cellular networks
EP2448140A2 (en) 2009-06-25 2012-05-02 Pantech Co., Ltd Method for selecting precoder in wireless communication system and apparatus using the same, feedback method of channel information of terminal, and method for receiving channel information of base station
US9137802B2 (en) * 2009-08-18 2015-09-15 Qualcomm Incorporated DL MU-MIMO operation in LTE-A
WO2011065763A2 (ko) * 2009-11-30 2011-06-03 엘지전자 주식회사 프리코딩 행렬 정보를 전송하는 방법 및 사용자기기와, 복수의 사용자기기에 데이터를 전송하는 방법 및 기지국
JP5296004B2 (ja) 2010-04-23 2013-09-25 株式会社エヌ・ティ・ティ・ドコモ フィードバック情報送信方法、移動局装置及び基地局装置
CN101867447B (zh) * 2010-04-30 2015-09-16 中兴通讯股份有限公司 信道状态信息的反馈方法及终端
US8787484B2 (en) 2010-06-18 2014-07-22 Nec Corporation Precoding techniques for downlink coordinated multipoint transmission in radio communications system
CN102468939B (zh) 2010-11-05 2015-07-08 索尼公司 下行信道反馈信息反馈方法和装置及用户配对方法和装置
CN103477568B (zh) 2010-11-15 2017-02-22 爱立信(中国)通信有限公司 Mimo系统中的二维ue配对的方法和装置
WO2014046273A1 (en) * 2012-09-18 2014-03-27 Nec Corporation Method for improving transmission capacity in a dl mu-mimo communications system

Also Published As

Publication number Publication date
US9473225B2 (en) 2016-10-18
JP2015528680A (ja) 2015-09-28
EP2898721A1 (en) 2015-07-29
US20150236767A1 (en) 2015-08-20
AU2013318923A1 (en) 2015-03-05
EP2898721B1 (en) 2018-06-06
AU2013318923B2 (en) 2015-09-17
CN104662942A (zh) 2015-05-27
EP2898721A4 (en) 2016-06-29
WO2014046273A1 (en) 2014-03-27
JP5900707B2 (ja) 2016-04-06
CN104662942B (zh) 2018-11-16

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