JP4615436B2 - 無線送信機、無線受信機、無線通信システム、無線送信方法及び無線受信方法 - Google Patents

無線送信機、無線受信機、無線通信システム、無線送信方法及び無線受信方法 Download PDF

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Publication number
JP4615436B2
JP4615436B2 JP2005374134A JP2005374134A JP4615436B2 JP 4615436 B2 JP4615436 B2 JP 4615436B2 JP 2005374134 A JP2005374134 A JP 2005374134A JP 2005374134 A JP2005374134 A JP 2005374134A JP 4615436 B2 JP4615436 B2 JP 4615436B2
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JP
Japan
Prior art keywords
pilot
unit
propagation path
transmission
pilot channel
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.)
Expired - Fee Related
Application number
JP2005374134A
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English (en)
Japanese (ja)
Other versions
JP2007180666A (ja
JP2007180666A5 (enExample
Inventor
貴司 吉本
公彦 今村
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.)
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.)
Filing date
Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Priority to JP2005374134A priority Critical patent/JP4615436B2/ja
Priority to EP06834315.1A priority patent/EP1971059A4/en
Priority to PCT/JP2006/324560 priority patent/WO2007074623A1/ja
Publication of JP2007180666A publication Critical patent/JP2007180666A/ja
Publication of JP2007180666A5 publication Critical patent/JP2007180666A5/ja
Application granted granted Critical
Publication of JP4615436B2 publication Critical patent/JP4615436B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • 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
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/364—Delay profiles
    • 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
    • H04B7/0667—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 delayed versions of same signal
    • H04B7/0671—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 delayed versions of same signal using different delays between antennas
    • 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
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • 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
    • H04B7/0848—Joint 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
    • H04B7/08—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
    • H04B7/0848—Joint weighting
    • H04B7/0857—Joint weighting using maximum ratio combining techniques, e.g. signal-to- interference ratio [SIR], received signal strenght indication [RSS]
    • 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
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between 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
    • 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
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
JP2005374134A 2005-12-27 2005-12-27 無線送信機、無線受信機、無線通信システム、無線送信方法及び無線受信方法 Expired - Fee Related JP4615436B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2005374134A JP4615436B2 (ja) 2005-12-27 2005-12-27 無線送信機、無線受信機、無線通信システム、無線送信方法及び無線受信方法
EP06834315.1A EP1971059A4 (en) 2005-12-27 2006-12-08 WIRELESS TRANSMITTER, WIRELESS RECEIVER, WIRELESS COMMUNICATION SYSTEM, WIRELESS TRANSMISSION METHOD AND WIRELESS RECEPTION PROCESS
PCT/JP2006/324560 WO2007074623A1 (ja) 2005-12-27 2006-12-08 無線送信機、無線受信機、無線通信システム、無線送信方法及び無線受信方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005374134A JP4615436B2 (ja) 2005-12-27 2005-12-27 無線送信機、無線受信機、無線通信システム、無線送信方法及び無線受信方法

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2010161861A Division JP2010279056A (ja) 2010-07-16 2010-07-16 無線受信機、無線送信機、無線通信システム及び無線受信方法

Publications (3)

Publication Number Publication Date
JP2007180666A JP2007180666A (ja) 2007-07-12
JP2007180666A5 JP2007180666A5 (enExample) 2008-07-24
JP4615436B2 true JP4615436B2 (ja) 2011-01-19

Family

ID=38217844

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005374134A Expired - Fee Related JP4615436B2 (ja) 2005-12-27 2005-12-27 無線送信機、無線受信機、無線通信システム、無線送信方法及び無線受信方法

Country Status (3)

Country Link
EP (1) EP1971059A4 (enExample)
JP (1) JP4615436B2 (enExample)
WO (1) WO2007074623A1 (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7276673B2 (en) * 2003-09-26 2007-10-02 Tdk Corporation Solder bonding method and solder bonding device
US20100273438A1 (en) * 2006-06-05 2010-10-28 Panasonic Corporation Radio communication apparatus and radio communication method in multi-carrier communication
US8213538B2 (en) * 2007-05-29 2012-07-03 Qualcomm Incorporated Methods and apparatus for improved utilization of air link resources in a wireless communications system
WO2009134180A1 (en) * 2008-04-28 2009-11-05 Telefonaktiebolaget L M Ericsson (Publ) Methods and arrangements for downlink multi-carrier power control in a wireless communications system
US8411780B2 (en) * 2009-02-24 2013-04-02 Telefonaktiebolaget Lm Ericsson (Publ) Estimating the ratio of traffic channel power to pilot power in a MIMO wireless communication system
JP5392554B2 (ja) * 2009-07-24 2014-01-22 ソニー株式会社 受信装置及び方法、プログラム、並びに受信システム
JP5339102B2 (ja) * 2012-04-02 2013-11-13 株式会社日立国際電気 ピーク抑圧回路、及び、無線送信機

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6473467B1 (en) * 2000-03-22 2002-10-29 Qualcomm Incorporated Method and apparatus for measuring reporting channel state information in a high efficiency, high performance communications system
US7646702B2 (en) * 2000-11-17 2010-01-12 Panasonic Corporation OFDM communication apparatus
JP3955463B2 (ja) * 2001-12-05 2007-08-08 ソフトバンクテレコム株式会社 直交周波数分割多重通信システム
JP3962001B2 (ja) * 2003-09-29 2007-08-22 株式会社東芝 マルチキャリア通信装置
KR20050118031A (ko) * 2004-06-12 2005-12-15 삼성전자주식회사 순환지연 다이버시티를 이용하여 방송 채널을 효율적으로전송하는 장치 및 방법

Also Published As

Publication number Publication date
EP1971059A1 (en) 2008-09-17
JP2007180666A (ja) 2007-07-12
EP1971059A4 (en) 2013-04-24
WO2007074623A1 (ja) 2007-07-05

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