WO2008129647A1 - Ofdm receiver apparatus and ofdm transmitter apparatus - Google Patents

Ofdm receiver apparatus and ofdm transmitter apparatus Download PDF

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Publication number
WO2008129647A1
WO2008129647A1 PCT/JP2007/058188 JP2007058188W WO2008129647A1 WO 2008129647 A1 WO2008129647 A1 WO 2008129647A1 JP 2007058188 W JP2007058188 W JP 2007058188W WO 2008129647 A1 WO2008129647 A1 WO 2008129647A1
Authority
WO
WIPO (PCT)
Prior art keywords
ofdm
pilot signal
channel estimation
signal
replica
Prior art date
Application number
PCT/JP2007/058188
Other languages
French (fr)
Japanese (ja)
Inventor
Akiyoshi Monma
Yuta Seki
Original Assignee
Panasonic Corporation
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 Panasonic Corporation filed Critical Panasonic Corporation
Priority to PCT/JP2007/058188 priority Critical patent/WO2008129647A1/en
Publication of WO2008129647A1 publication Critical patent/WO2008129647A1/en

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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
    • H04L27/2602—Signal structure
    • H04L27/261—Details of 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
    • H04L27/2614—Peak power aspects

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

An OFDM receiver apparatus and an OFDM transmitter apparatus wherein a channel estimation is performed by use of a pilot signal replica with the influence of peak suppression taken into account at the receiving end, thereby improving the performance of receiving peak-suppressed OFDM signals. An OFDM receiver apparatus (100), which performs a channel compensation based on a channel estimation using a pilot signal included in an OFDM signal received from an OFDM transmitter apparatus, comprises a pilot signal replica output part (142) that outputs a pilot signal replica having the same conditions as a pilot signal obtained by subjecting an OFDM signal, in which a pilot signal is similarly located, to a similar peak suppression process and further to a similar Fourier transform to the transmitting end; and a channel estimation value calculating part (144) that calculates a channel estimation value, based on the pilot signal replica signal and the pilot signal included in the received OFDM signal.
PCT/JP2007/058188 2007-04-13 2007-04-13 Ofdm receiver apparatus and ofdm transmitter apparatus WO2008129647A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/058188 WO2008129647A1 (en) 2007-04-13 2007-04-13 Ofdm receiver apparatus and ofdm transmitter apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/058188 WO2008129647A1 (en) 2007-04-13 2007-04-13 Ofdm receiver apparatus and ofdm transmitter apparatus

Publications (1)

Publication Number Publication Date
WO2008129647A1 true WO2008129647A1 (en) 2008-10-30

Family

ID=39875195

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/058188 WO2008129647A1 (en) 2007-04-13 2007-04-13 Ofdm receiver apparatus and ofdm transmitter apparatus

Country Status (1)

Country Link
WO (1) WO2008129647A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0685548A (en) * 1992-09-04 1994-03-25 Toshiba Corp Distortion compensator
JPH06326676A (en) * 1993-05-17 1994-11-25 Nec Ic Microcomput Syst Ltd Audio multiplex pilot signal detection circuit
JP2982797B1 (en) * 1998-08-03 1999-11-29 日本電気株式会社 Demodulation circuit in CDMA receiver
JP2005065254A (en) * 2003-07-29 2005-03-10 Toshiba Corp Radio receiving apparatus and radio receiving method
JP2007074351A (en) * 2005-09-07 2007-03-22 Sharp Corp Multicarrier wireless communication system, transmitter and receiver, and multicarrier wireless communication method
JP2007096938A (en) * 2005-09-29 2007-04-12 Matsushita Electric Ind Co Ltd Nonlinear distortion equalizing circuit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0685548A (en) * 1992-09-04 1994-03-25 Toshiba Corp Distortion compensator
JPH06326676A (en) * 1993-05-17 1994-11-25 Nec Ic Microcomput Syst Ltd Audio multiplex pilot signal detection circuit
JP2982797B1 (en) * 1998-08-03 1999-11-29 日本電気株式会社 Demodulation circuit in CDMA receiver
JP2005065254A (en) * 2003-07-29 2005-03-10 Toshiba Corp Radio receiving apparatus and radio receiving method
JP2007074351A (en) * 2005-09-07 2007-03-22 Sharp Corp Multicarrier wireless communication system, transmitter and receiver, and multicarrier wireless communication method
JP2007096938A (en) * 2005-09-29 2007-04-12 Matsushita Electric Ind Co Ltd Nonlinear distortion equalizing circuit

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