DE602005003054D1 - Vorrichtung zur Übertragung und Vorrichtung zum Empfangen von OFDM-Signalen mit Verminderung des Verhältnisses von Spitzenleistung zu Durchschnittsleistung - Google Patents

Vorrichtung zur Übertragung und Vorrichtung zum Empfangen von OFDM-Signalen mit Verminderung des Verhältnisses von Spitzenleistung zu Durchschnittsleistung

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Publication number
DE602005003054D1
DE602005003054D1 DE602005003054T DE602005003054T DE602005003054D1 DE 602005003054 D1 DE602005003054 D1 DE 602005003054D1 DE 602005003054 T DE602005003054 T DE 602005003054T DE 602005003054 T DE602005003054 T DE 602005003054T DE 602005003054 D1 DE602005003054 D1 DE 602005003054D1
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DE
Germany
Prior art keywords
reduction
transmission
ratio
ofdm signals
power
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.)
Active
Application number
DE602005003054T
Other languages
English (en)
Other versions
DE602005003054T2 (de
Inventor
Jiyun Shen
Hiromasa Fujii
Takahiro Asai
Hirohito Suda
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.)
NTT Docomo Inc
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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
Publication of DE602005003054D1 publication Critical patent/DE602005003054D1/de
Application granted granted Critical
Publication of DE602005003054T2 publication Critical patent/DE602005003054T2/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H04L27/2614—Peak power aspects
    • 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
    • H04L27/2614—Peak power aspects
    • H04L27/2621—Reduction thereof using phase offsets between subcarriers
    • 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
    • H04L27/2614—Peak power aspects
    • H04L27/2623—Reduction thereof by clipping
    • H04L27/2624—Reduction thereof by clipping by soft clipping
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Complex Calculations (AREA)
  • Transmitters (AREA)
DE602005003054T 2004-05-25 2005-05-24 Vorrichtung zur Übertragung und Vorrichtung zum Empfangen von OFDM-Signalen mit Verminderung des Verhältnisses von Spitzenleistung zu Durchschnittsleistung Active DE602005003054T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004155033A JP4515155B2 (ja) 2004-05-25 2004-05-25 送信装置
JP2004155033 2004-05-25

Publications (2)

Publication Number Publication Date
DE602005003054D1 true DE602005003054D1 (de) 2007-12-13
DE602005003054T2 DE602005003054T2 (de) 2008-08-14

Family

ID=34941433

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005003054T Active DE602005003054T2 (de) 2004-05-25 2005-05-24 Vorrichtung zur Übertragung und Vorrichtung zum Empfangen von OFDM-Signalen mit Verminderung des Verhältnisses von Spitzenleistung zu Durchschnittsleistung

Country Status (5)

Country Link
US (1) US7646820B2 (de)
EP (1) EP1601150B1 (de)
JP (1) JP4515155B2 (de)
CN (1) CN100539566C (de)
DE (1) DE602005003054T2 (de)

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CN104218983B (zh) * 2013-05-31 2017-11-24 华为技术有限公司 联合通道校正方法及装置
CN103458485B (zh) * 2013-09-18 2016-05-25 济南大学 正交频分复用系统中峰值功率优化方法及其发射系统
WO2016136096A1 (ja) * 2015-02-23 2016-09-01 株式会社東芝 無線通信装置、集積回路、送信方法、受信方法及び通信方法
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Also Published As

Publication number Publication date
EP1601150A1 (de) 2005-11-30
US20050265226A1 (en) 2005-12-01
CN1703036A (zh) 2005-11-30
EP1601150B1 (de) 2007-10-31
JP2005341056A (ja) 2005-12-08
JP4515155B2 (ja) 2010-07-28
US7646820B2 (en) 2010-01-12
CN100539566C (zh) 2009-09-09
DE602005003054T2 (de) 2008-08-14

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Legal Events

Date Code Title Description
8381 Inventor (new situation)

Inventor name: FUJII, HIROMASA, CHIYODA-KU TOKYO 100-6150, JP

Inventor name: ASAI, TAKAHIRO, CHIYODA-KU TOKYO 100-6150, JP

Inventor name: SUDA, HIROHITO, CHIYODA-KU TOKYO 100-6150, JP

Inventor name: SHEN, JIYUN, CHIYODA-KU TOKYO 100-6150, JP

8364 No opposition during term of opposition