JP5149257B2 - 無線通信システム、通信装置および無線通信方法 - Google Patents

無線通信システム、通信装置および無線通信方法

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Publication number
JP5149257B2
JP5149257B2 JP2009230623A JP2009230623A JP5149257B2 JP 5149257 B2 JP5149257 B2 JP 5149257B2 JP 2009230623 A JP2009230623 A JP 2009230623A JP 2009230623 A JP2009230623 A JP 2009230623A JP 5149257 B2 JP5149257 B2 JP 5149257B2
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JP
Japan
Prior art keywords
base station
antenna ports
mobile terminal
precoding
transmission
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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.)
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Application number
JP2009230623A
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English (en)
Japanese (ja)
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JP2011082603A (ja
JP2011082603A5 (enExample
Inventor
寿之 示沢
智造 野上
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Sharp Corp
Original Assignee
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.)
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Priority to JP2009230623A priority Critical patent/JP5149257B2/ja
Application filed by Sharp Corp filed Critical Sharp Corp
Priority to CN201080043893.8A priority patent/CN102577486B/zh
Priority to PCT/JP2010/066085 priority patent/WO2011040258A1/ja
Priority to MX2012003828A priority patent/MX2012003828A/es
Priority to BR112012007539-0A priority patent/BR112012007539B1/pt
Priority to EA201270493A priority patent/EA026041B1/ru
Priority to EP10820377.9A priority patent/EP2485522A4/en
Publication of JP2011082603A publication Critical patent/JP2011082603A/ja
Priority to US13/436,330 priority patent/US9681322B2/en
Publication of JP2011082603A5 publication Critical patent/JP2011082603A5/ja
Application granted granted Critical
Publication of JP5149257B2 publication Critical patent/JP5149257B2/ja
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Anticipated expiration legal-status Critical

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0028—Formatting
    • H04L1/0029—Reduction of the amount of signalling, e.g. retention of useful signalling or differential signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L2001/0092—Error control systems characterised by the topology of the transmission link
    • 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
    • H04L5/0001—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

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
JP2009230623A 2009-10-02 2009-10-02 無線通信システム、通信装置および無線通信方法 Active JP5149257B2 (ja)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP2009230623A JP5149257B2 (ja) 2009-10-02 2009-10-02 無線通信システム、通信装置および無線通信方法
PCT/JP2010/066085 WO2011040258A1 (ja) 2009-10-02 2010-09-16 無線通信システム、通信装置、無線通信方法および端末装置
MX2012003828A MX2012003828A (es) 2009-10-02 2010-09-16 Sistema de comunicacion inalambrica, aparato de comunicacion, metodo de comunicacion inalambrica y aparato terminal.
BR112012007539-0A BR112012007539B1 (pt) 2009-10-02 2010-09-16 terminal móvel, sistema de comunicação, estação base e métodos de comunicação sem fio
CN201080043893.8A CN102577486B (zh) 2009-10-02 2010-09-16 无线通信系统、通信装置、无线通信方法及终端装置
EA201270493A EA026041B1 (ru) 2009-10-02 2010-09-16 Система беспроводной связи, устройство связи, способ беспроводной связи и устройство терминала
EP10820377.9A EP2485522A4 (en) 2009-10-02 2010-09-16 WIRELESS COMMUNICATION SYSTEM, COMMUNICATION DEVICE, WIRELESS COMMUNICATION PROCESS AND TERMINAL
US13/436,330 US9681322B2 (en) 2009-10-02 2012-03-30 Wireless communication system, communication apparatus, wireless communication method and terminal apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009230623A JP5149257B2 (ja) 2009-10-02 2009-10-02 無線通信システム、通信装置および無線通信方法

Publications (3)

Publication Number Publication Date
JP2011082603A JP2011082603A (ja) 2011-04-21
JP2011082603A5 JP2011082603A5 (enExample) 2012-04-26
JP5149257B2 true JP5149257B2 (ja) 2013-02-20

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Country Status (8)

Country Link
US (1) US9681322B2 (enExample)
EP (1) EP2485522A4 (enExample)
JP (1) JP5149257B2 (enExample)
CN (1) CN102577486B (enExample)
BR (1) BR112012007539B1 (enExample)
EA (1) EA026041B1 (enExample)
MX (1) MX2012003828A (enExample)
WO (1) WO2011040258A1 (enExample)

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EP2485522A4 (en) 2013-05-01
CN102577486B (zh) 2015-11-25
US20120213111A1 (en) 2012-08-23
BR112012007539B1 (pt) 2021-05-18
EA201270493A1 (ru) 2012-12-28
WO2011040258A1 (ja) 2011-04-07
MX2012003828A (es) 2012-05-08
BR112012007539A2 (pt) 2020-08-11
EP2485522A1 (en) 2012-08-08
US9681322B2 (en) 2017-06-13

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