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

Ofdm receiver apparatus and ofdm transmitter apparatus Download PDF

Info

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
apparatus
signal
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

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2602Signal structure
    • H04L27/261Details of reference signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2614Peak power aspects

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

Similar Documents

Publication Publication Date Title
WO2014006515A3 (en) Highly-spectrally-efficient reception using orthogonal frequency division multiplexing
KR970072724A (en) Digital audio broadcasting transmission system
EP2503701A3 (en) System and method for tuning an antenna in a wireless communication device
EP3190721A3 (en) Satellite communication system and method in which wideband frequency hopping signals are received at the satellite with control of the power level of the channels.
US20090196161A1 (en) Combined echo and crosstalk cancellation
WO2012066541A3 (en) System and method for object position estimation based on ultrasonic reflected signals
SG184815A1 (en) Audio encoder, audio decoder and related methods for processing multi-channel audio signals using complex prediction
WO2011112054A3 (en) Method and apparatus for transmitting and receiving data in a mimo system
BRPI0819156A8 (en) interpolation method and apparatus to increase crosstalk estimation efficiency
EP2663044B1 (en) Channel frequency offset estimation method, device and system
SG184537A1 (en) Audio or video encoder, audio or video decoder and related methods for processing multi-channel audio or video signals using a variable prediction direction
WO2008094283A3 (en) System, method, and computer-readable medium for detection and avoidance of victim services in ultra-wideband systems
CN104617981B (en) A kind of full duplex self-interference removing method and device based on Power estimation
MX2007003469A (en) Multicarrier communication apparatus and multicarrier communication method.
BRPI0703527A (en) communication system and apparatus
WO2013070458A3 (en) Ultrasound based mobile receivers in idle mode
TW200601759A (en) Frequency error estimation and frame synchronization in an OFDM system
IL199826D0 (en) Mimo transmission with explicit and implicit cyclic delays
WO2006094037A3 (en) Channel estimate optimization for multiple transmit modes
BRPI0703411A (en) communication system and apparatus, and electric field coupling antenna
WO2009126410A3 (en) Integrated latency detection and echo cancellation
CA2374282A1 (en) Amplitude and phase estimation method in a wireless communication system
EP3454625A3 (en) Wide area positioning system
WO2006107381A3 (en) Radioterminals and associated operating methods that alternate transmission of wireless communications and processing of global positioning system signals
FR2973187B1 (en) Method for processing a multi-carrier signal with filter benches for preamble synchronization

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07741624

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase in:

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07741624

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase in:

Ref country code: JP