JP5501034B2 - 通信システム、送信装置、受信装置 - Google Patents

通信システム、送信装置、受信装置 Download PDF

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Publication number
JP5501034B2
JP5501034B2 JP2010043830A JP2010043830A JP5501034B2 JP 5501034 B2 JP5501034 B2 JP 5501034B2 JP 2010043830 A JP2010043830 A JP 2010043830A JP 2010043830 A JP2010043830 A JP 2010043830A JP 5501034 B2 JP5501034 B2 JP 5501034B2
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JP
Japan
Prior art keywords
drs
orthogonal
unit
propagation path
orthogonal drs
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JP2010043830A
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English (en)
Japanese (ja)
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JP2011233944A5 (enExample
JP2011233944A (ja
Inventor
博史 中野
毅 小野寺
晋平 藤
梢 平田
宏道 留場
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Sharp Corp
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Sharp 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
Application filed by Sharp Corp filed Critical Sharp Corp
Priority to JP2010043830A priority Critical patent/JP5501034B2/ja
Priority to US13/582,374 priority patent/US8897122B2/en
Priority to PCT/JP2011/051854 priority patent/WO2011108319A1/ja
Priority to CN2011800116110A priority patent/CN102783069A/zh
Priority to EP11750432.4A priority patent/EP2544393A4/en
Publication of JP2011233944A publication Critical patent/JP2011233944A/ja
Publication of JP2011233944A5 publication Critical patent/JP2011233944A5/ja
Application granted granted Critical
Publication of JP5501034B2 publication Critical patent/JP5501034B2/ja
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    • 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
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/24—Monitoring; Testing of receivers with feedback of measurements to the transmitter
    • 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
    • H04B7/06—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
    • H04B7/06—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
    • H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode 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
    • H04B7/0613—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
    • H04B7/0658—Feedback reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023—Interference mitigation or co-ordination
    • H04J11/0026—Interference mitigation or co-ordination of multi-user interference
    • H04J11/003—Interference mitigation or co-ordination of multi-user interference at the transmitter
    • H04J11/0033—Interference mitigation or co-ordination of multi-user interference at the transmitter by pre-cancellation of known interference, e.g. using a matched filter, dirty paper coder or Thomlinson-Harashima precoder
    • 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
    • H04L25/0224—Channel estimation using sounding signals
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Mathematical Physics (AREA)
  • Electromagnetism (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
JP2010043830A 2010-03-01 2010-03-01 通信システム、送信装置、受信装置 Active JP5501034B2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2010043830A JP5501034B2 (ja) 2010-03-01 2010-03-01 通信システム、送信装置、受信装置
US13/582,374 US8897122B2 (en) 2010-03-01 2011-01-31 Communication system, transmitter and receiver
PCT/JP2011/051854 WO2011108319A1 (ja) 2010-03-01 2011-01-31 通信システム、送信装置、受信装置
CN2011800116110A CN102783069A (zh) 2010-03-01 2011-01-31 通信系统、发送装置、接收装置
EP11750432.4A EP2544393A4 (en) 2010-03-01 2011-01-31 COMMUNICATION SYSTEM, TRANSMITTING DEVICE, RECEIVING DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010043830A JP5501034B2 (ja) 2010-03-01 2010-03-01 通信システム、送信装置、受信装置

Publications (3)

Publication Number Publication Date
JP2011233944A JP2011233944A (ja) 2011-11-17
JP2011233944A5 JP2011233944A5 (enExample) 2013-04-18
JP5501034B2 true JP5501034B2 (ja) 2014-05-21

Family

ID=44541987

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010043830A Active JP5501034B2 (ja) 2010-03-01 2010-03-01 通信システム、送信装置、受信装置

Country Status (5)

Country Link
US (1) US8897122B2 (enExample)
EP (1) EP2544393A4 (enExample)
JP (1) JP5501034B2 (enExample)
CN (1) CN102783069A (enExample)
WO (1) WO2011108319A1 (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5547988B2 (ja) * 2010-03-01 2014-07-16 シャープ株式会社 通信システム、送信装置、受信装置、通信方法
JP5687524B2 (ja) 2011-03-01 2015-03-18 シャープ株式会社 送信装置、受信装置、通信システム、通信方法、および集積回路
JP5864200B2 (ja) 2011-05-20 2016-02-17 株式会社Ｎｔｔドコモ 受信装置、送信装置及び無線通信方法
JP5804594B2 (ja) * 2011-08-05 2015-11-04 シャープ株式会社 プリコーディング装置、プリコーディング用プログラムおよび集積回路
US8934398B2 (en) * 2011-10-07 2015-01-13 Qualcomm Incorporated System, apparatus, and method for repeater pilot signal generation in wireless communication systems
US9673881B2 (en) 2012-10-10 2017-06-06 Sharp Kabushiki Kaisha Terminal device, base station device, wireless communication system, reception method, and integrated circuit
JP5969374B2 (ja) * 2012-12-17 2016-08-17 Kddi株式会社 無線通信システム及びその方法、送信装置及びその方法、受信装置及びその方法、並びに無線通信装置
JP6254019B2 (ja) * 2014-02-28 2017-12-27 株式会社Ｎｔｔドコモ 無線基地局、ユーザ端末、無線通信方法及び無線通信システム
CN110855586B (zh) * 2016-07-08 2022-08-26 北京紫光展锐通信技术有限公司 导频信号传输方法
US11184205B2 (en) 2018-05-10 2021-11-23 Ntt Docomo, Inc. Reception apparatus and transmission apparatus
US20210211247A1 (en) * 2018-05-22 2021-07-08 Ntt Docomo, Inc. Precoding method, decoding method, transmitting device and receiving device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP4447372B2 (ja) * 2004-05-13 2010-04-07 株式会社エヌ・ティ・ティ・ドコモ 無線通信システム、無線通信装置、無線受信装置、無線通信方法及びチャネル推定方法
WO2006103758A1 (ja) * 2005-03-30 2006-10-05 Fujitsu Limited 移動端末、無線通信装置及び無線通信方法
EP2605466A3 (en) * 2007-03-21 2013-11-06 InterDigital Technology Corporation MIMO wireless communication method and apparatus for transmitting and decoding resource block structures based on a dedicated reference signal mode
JP5248130B2 (ja) * 2008-01-31 2013-07-31 株式会社東芝 無線送信方法及び装置
JP2010043825A (ja) 2008-03-14 2010-02-25 Panasonic Corp 冷蔵庫
JP5221285B2 (ja) 2008-11-05 2013-06-26 株式会社東芝 無線通信装置及び方法
US8437300B2 (en) * 2009-10-12 2013-05-07 Samsung Electronics Co., Ltd Method and system of multi-layer beamforming
WO2011090353A2 (ko) * 2010-01-22 2011-07-28 엘지전자 주식회사 다중입출력 무선 통신 시스템에서 하향링크 제어정보를 제공하는 방법 및 장치

Also Published As

Publication number Publication date
WO2011108319A1 (ja) 2011-09-09
US8897122B2 (en) 2014-11-25
EP2544393A4 (en) 2014-10-22
CN102783069A (zh) 2012-11-14
EP2544393A1 (en) 2013-01-09
US20130003641A1 (en) 2013-01-03
JP2011233944A (ja) 2011-11-17

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