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WO2008084719A1 - Ofdm方式を利用する移動通信システムで使用される送信装置、受信装置及び方法 - Google Patents

Ofdm方式を利用する移動通信システムで使用される送信装置、受信装置及び方法 Download PDF

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Publication number
WO2008084719A1
WO2008084719A1 PCT/JP2007/075169 JP2007075169W WO2008084719A1 WO 2008084719 A1 WO2008084719 A1 WO 2008084719A1 JP 2007075169 W JP2007075169 W JP 2007075169W WO 2008084719 A1 WO2008084719 A1 WO 2008084719A1
Authority
WO
WIPO (PCT)
Prior art keywords
signal
maintained
power
transmitted
time slot
Prior art date
Application number
PCT/JP2007/075169
Other languages
English (en)
French (fr)
Inventor
Yoshihisa Kishiyama
Kenichi Higuchi
Mamoru Sawahashi
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.
Priority to AU2007342808A priority Critical patent/AU2007342808B2/en
Priority to KR1020097013990A priority patent/KR101420184B1/ko
Priority to EP07860391.7A priority patent/EP2104255B1/en
Priority to BRPI0720782-4A priority patent/BRPI0720782A2/pt
Priority to US12/521,208 priority patent/US8265043B2/en
Priority to CN2007800492466A priority patent/CN101589568B/zh
Priority to CA2673385A priority patent/CA2673385C/en
Priority to MX2009007186A priority patent/MX2009007186A/es
Publication of WO2008084719A1 publication Critical patent/WO2008084719A1/ja

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H04L27/26134—Pilot insertion in the transmitter chain, e.g. pilot overlapping with data, insertion in time or frequency domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2628—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • 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
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)

Abstract

　送信装置は、リファレンス信号及びデータ信号が個々のサブキャリアにマッピングされた信号を逆フーリエ変換し、送信信号を作成する手段と、送信信号を無線送信する手段とを有する。あるタイムスロットで送信される信号に割り当てられる総電力と、別のタイムスロットで送信される信号に割り当てられる総電力とが等しく維持される。リファレンス信号の単位帯域当たりの電力密度は、データ信号の単位帯域当たりの電力密度より大きく設定される。各タイムスロットでの総送信電力が一定に維持されるので、電力増幅効率は高く維持される。しかもリファレンス信号は他の信号より強く送信されるので、チャネル推定精度も高く維持される。
PCT/JP2007/075169 2007-01-09 2007-12-27 Ofdm方式を利用する移動通信システムで使用される送信装置、受信装置及び方法 WO2008084719A1 (ja)

Priority Applications (8)

Application Number Priority Date Filing Date Title
AU2007342808A AU2007342808B2 (en) 2007-01-09 2007-12-27 Transmitting Device, Receiving Device, and Method used in Mobile Communication System Employing OFDM
KR1020097013990A KR101420184B1 (ko) 2007-01-09 2007-12-27 Ｏｆｄｍ 방식을 이용하는 이동통신시스템에서 사용되는 송신장치, 수신장치 및 방법
EP07860391.7A EP2104255B1 (en) 2007-01-09 2007-12-27 Transmit power efficient and reliable communication of OFDM signals
BRPI0720782-4A BRPI0720782A2 (pt) 2007-01-09 2007-12-27 Dispositivo de transmissão, dispositivo de recepção e método utilizado em um sistema de comunicação móvel que emprega ofdm.
US12/521,208 US8265043B2 (en) 2007-01-09 2007-12-27 Transmitting device, receiving device, and method used in mobile communication system employing OFDM
CN2007800492466A CN101589568B (zh) 2007-01-09 2007-12-27 发送装置、发送方法及通信系统
CA2673385A CA2673385C (en) 2007-01-09 2007-12-27 Transmitting device, receiving device, and method used in mobile communication system employing ofdm
MX2009007186A MX2009007186A (es) 2007-01-09 2007-12-27 Dispositivo de transmision, dispositivo de recepcion, y metodo utilizado en un sistema de comunicacion movil que emplea multiplexor por division de frecuencia ortogonal.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007001858A JP4640844B2 (ja) 2007-01-09 2007-01-09 送信装置、送信方法及び通信システム
JP2007-001858 2007-01-09

Publications (1)

Publication Number Publication Date
WO2008084719A1 true WO2008084719A1 (ja) 2008-07-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/075169 WO2008084719A1 (ja) 2007-01-09 2007-12-27 Ofdm方式を利用する移動通信システムで使用される送信装置、受信装置及び方法

Country Status (11)

Country Link
US (1) US8265043B2 (ja)
EP (1) EP2104255B1 (ja)
JP (1) JP4640844B2 (ja)
KR (1) KR101420184B1 (ja)
CN (2) CN101589568B (ja)
AU (1) AU2007342808B2 (ja)
BR (1) BRPI0720782A2 (ja)
CA (1) CA2673385C (ja)
MX (1) MX2009007186A (ja)
RU (2) RU2467481C2 (ja)
WO (1) WO2008084719A1 (ja)

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CN101483466A (zh) * 2009-02-06 2009-07-15 中兴通讯股份有限公司 用户专有参考信号的映射方法
CN101340227B (zh) * 2008-08-15 2012-10-10 中兴通讯股份有限公司 下行参考信号的发送方法和装置
WO2013114799A1 (ja) * 2012-01-30 2013-08-08 パナソニック株式会社 無線通信端末装置および送信電力制御方法

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JP5045127B2 (ja) * 2007-01-31 2012-10-10 富士通モバイルコミュニケーションズ株式会社 無線通信システム
US8059611B2 (en) * 2007-02-28 2011-11-15 Ntt Docomo, Inc. Maintaining a constant transmission power density of a data signal utilizing prohibited subcarriers
WO2009078770A1 (en) * 2007-12-18 2009-06-25 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangements for facilitating allocation of radio resources
CN101933264A (zh) * 2008-02-01 2010-12-29 夏普株式会社 发送机、接收机、发送方法和接收方法
WO2010073987A1 (ja) 2008-12-22 2010-07-01 株式会社日立製作所 信号配置方法及び通信装置
US8817588B2 (en) 2009-10-28 2014-08-26 Qualcomm Incorporated Multiplexing data and reference information in a wireless communication system
JP4913222B2 (ja) 2010-02-12 2012-04-11 シャープ株式会社 無線通信システム、移動局装置、無線通信方法および集積回路
JP5511955B2 (ja) 2010-06-16 2014-06-04 パナソニック株式会社 基地局装置、通信方法及び集積回路
GB2510366A (en) 2013-01-31 2014-08-06 Sony Corp Narrowband power boosts for MTC pilot subcarriers
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CN104243425B (zh) 2013-06-19 2018-09-04 深圳市腾讯计算机系统有限公司 一种在内容分发网络中进行内容管理的方法、装置及系统
JP6313095B2 (ja) 2014-04-01 2018-04-18 株式会社Ｎｔｔドコモ 基地局
US9743363B2 (en) * 2014-06-24 2017-08-22 Qualcomm Incorporated CCA clearance in unlicensed spectrum
US10448391B2 (en) 2014-11-24 2019-10-15 Telefonaktiebolaget Lm Ericsson (Publ) Method and device for transmission and reception of time-frequency resources
CN107113268B (zh) 2014-11-24 2020-08-14 瑞典爱立信有限公司 用于信号的传输的方法、通信节点以及计算机可读存储介质
EP3225062B1 (en) 2014-11-24 2019-11-20 Telefonaktiebolaget LM Ericsson (publ) Transmission and reception in a determined third set of time-frequency resources
US10187236B2 (en) * 2014-11-24 2019-01-22 Telefonaktiebolaget Lm Ericsson (Publ) Communication node and method therein for transmission using a precoded multi-carrier modulation scheme in a wireless communication network
CN111082916B (zh) 2015-06-29 2022-09-09 Lg电子株式会社 用于发送和接收广播信号的方法和装置
EP3331207A4 (en) 2015-07-27 2019-03-27 LG Electronics Inc. METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING A BROADCAST SIGNAL
US10469298B2 (en) * 2017-05-12 2019-11-05 Qualcomm Incorporated Increasing reference signal density in wireless communications
CN109474408B (zh) 2017-09-08 2024-03-26 华为技术有限公司 基于序列的信号处理方法及装置
CN110049510B (zh) * 2018-01-16 2021-01-15 中国移动通信有限公司研究院 交叉链路干扰测量通知方法、网络侧设备及移动通信终端
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CN101340227B (zh) * 2008-08-15 2012-10-10 中兴通讯股份有限公司 下行参考信号的发送方法和装置
CN101483466A (zh) * 2009-02-06 2009-07-15 中兴通讯股份有限公司 用户专有参考信号的映射方法
WO2013114799A1 (ja) * 2012-01-30 2013-08-08 パナソニック株式会社 無線通信端末装置および送信電力制御方法
JPWO2013114799A1 (ja) * 2012-01-30 2015-05-11 パナソニック インテレクチュアル プロパティ コーポレーション オブアメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ 無線通信端末装置および送信電力制御方法
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Also Published As

Publication number Publication date
MX2009007186A (es) 2009-07-15
RU2467481C2 (ru) 2012-11-20
US20100027512A1 (en) 2010-02-04
JP2008172377A (ja) 2008-07-24
RU2012130601A (ru) 2014-01-27
EP2104255A1 (en) 2009-09-23
KR101420184B1 (ko) 2014-07-17
RU2009129216A (ru) 2011-02-20
EP2104255A4 (en) 2014-04-09
CN101589568A (zh) 2009-11-25
EP2104255B1 (en) 2015-08-26
AU2007342808A1 (en) 2008-07-17
BRPI0720782A2 (pt) 2014-02-04
CN103023847A (zh) 2013-04-03
CN101589568B (zh) 2013-08-21
CA2673385C (en) 2015-08-11
AU2007342808B2 (en) 2013-01-24
JP4640844B2 (ja) 2011-03-02
RU2535663C2 (ru) 2014-12-20
US8265043B2 (en) 2012-09-11
KR20090094835A (ko) 2009-09-08
CA2673385A1 (en) 2008-07-17
CN103023847B (zh) 2016-02-24

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