[go: up one dir, main page]

WO2008117427A1 - Receiver - Google Patents

Receiver Download PDF

Info

Publication number
WO2008117427A1
WO2008117427A1 PCT/JP2007/056359 JP2007056359W WO2008117427A1 WO 2008117427 A1 WO2008117427 A1 WO 2008117427A1 JP 2007056359 W JP2007056359 W JP 2007056359W WO 2008117427 A1 WO2008117427 A1 WO 2008117427A1
Authority
WO
WIPO (PCT)
Prior art keywords
error correction
receiver
decode
subcarrier
low reliability
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.)
Ceased
Application number
PCT/JP2007/056359
Other languages
French (fr)
Japanese (ja)
Inventor
Michiharu Nakamura
Makoto Yoshida
Yuuta Nakaya
Kazuhiko Kobayashi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to PCT/JP2007/056359 priority Critical patent/WO2008117427A1/en
Priority to JP2009506140A priority patent/JPWO2008117427A1/en
Publication of WO2008117427A1 publication Critical patent/WO2008117427A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/65—Purpose and implementation aspects
    • H03M13/6577—Representation or format of variables, register sizes or word-lengths and quantization
    • 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
    • H04L25/06—DC level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/067—DC level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing soft decisions, i.e. decisions together with an estimate of reliability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14—Demodulator circuits; Receiver circuits
    • H04L27/142—Compensating direct current components occurring during the demodulation and which are caused by mistuning
    • 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
    • H04L27/2649—Demodulators
    • H04L27/2653—Demodulators with direct demodulation of individual subcarriers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Noise Elimination (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

A receiver uses signals, which are constituted by a plurality of subcarriers on a frequency axis, to decode error correction codes. The receiver comprises a weight adding part that adds weights of low reliability to subcarrier signals affected by noise depending on the subcarrier frequencies; and an error correction decoding part that uses the subcarrier signals and the weights of low reliability added by the weight adding part to decode the error correction codes.
PCT/JP2007/056359 2007-03-27 2007-03-27 Receiver Ceased WO2008117427A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2007/056359 WO2008117427A1 (en) 2007-03-27 2007-03-27 Receiver
JP2009506140A JPWO2008117427A1 (en) 2007-03-27 2007-03-27 Receiving machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/056359 WO2008117427A1 (en) 2007-03-27 2007-03-27 Receiver

Publications (1)

Publication Number Publication Date
WO2008117427A1 true WO2008117427A1 (en) 2008-10-02

Family

ID=39788170

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/056359 Ceased WO2008117427A1 (en) 2007-03-27 2007-03-27 Receiver

Country Status (2)

Country Link
JP (1) JPWO2008117427A1 (en)
WO (1) WO2008117427A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010147946A (en) * 2008-12-19 2010-07-01 Nippon Telegr & Teleph Corp <Ntt> System and method of multi-carrier wireless communication
JP2010147947A (en) * 2008-12-19 2010-07-01 Nippon Telegr & Teleph Corp <Ntt> System and method of multi-carrier wireless communication
US9100157B2 (en) 2013-11-29 2015-08-04 Fujitsu Limited Likelihood weighting circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11346205A (en) * 1998-06-02 1999-12-14 Jisedai Digital Television Hoso System Kenkyusho:Kk Frequency selective interference correction device
JP2001156685A (en) * 1999-11-26 2001-06-08 Mitsubishi Electric Corp Power line communication system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11346205A (en) * 1998-06-02 1999-12-14 Jisedai Digital Television Hoso System Kenkyusho:Kk Frequency selective interference correction device
JP2001156685A (en) * 1999-11-26 2001-06-08 Mitsubishi Electric Corp Power line communication system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010147946A (en) * 2008-12-19 2010-07-01 Nippon Telegr & Teleph Corp <Ntt> System and method of multi-carrier wireless communication
JP2010147947A (en) * 2008-12-19 2010-07-01 Nippon Telegr & Teleph Corp <Ntt> System and method of multi-carrier wireless communication
US9100157B2 (en) 2013-11-29 2015-08-04 Fujitsu Limited Likelihood weighting circuit

Also Published As

Publication number Publication date
JPWO2008117427A1 (en) 2010-07-08

Similar Documents

Publication Publication Date Title
US10694342B2 (en) Signal multiplexing device and signal multiplexing method using layered division multiplexing
US10122960B2 (en) Broadcast signal frame generation apparatus and broadcast signal frame generation method using layered division multiplexing
WO2012007565A3 (en) Concept for combining coded data packets with robust header protection
WO2009134777A3 (en) Communication signal decoding with iterative cooperation between inner and outer codes
US10237703B2 (en) Broadcast signal frame generating apparatus and broadcast signal frame generating method using layered division multiplexing
WO2009085869A3 (en) Receiver adjustment between pilot bursts
WO2009012274A3 (en) Systems and methods for increased data rate modes using multiple encoders/decoders
WO2009134090A3 (en) Home appliance system and operation method thereof
WO2008146495A1 (en) Digital broadcast receiver
US10187237B2 (en) Broadcast signal frame generation apparatus and broadcast signal frame generation method using layered division multiplexing
WO2008077090A3 (en) Beamspace-time coding based on channel quality feedback
WO2012047855A3 (en) Compressed feedback format for wlan
WO2009104931A3 (en) Apparatus for transmitting and receiving a signal and method of transmitting and receiving a signal
WO2008096591A1 (en) Ofdm transmitter and ofdm receiver
WO2010151068A3 (en) Method for compensating for frequency attenuation using adaptive cyclic delay diversity, and transmitting apparatus and method and receiving apparatus and method using same
WO2010077835A3 (en) Acoustic suppression using ancillary rf link
WO2009038354A3 (en) Method and system for transmitting and receiving signals
WO2008117427A1 (en) Receiver
WO2011078550A3 (en) Digital broadcast transmitter and digital broadcast receiver, and method for processing streams thereof
WO2011070034A3 (en) Decoding speech signals
WO2009051421A3 (en) Method and system for transmitting and receiving signals
WO2011096706A3 (en) Broadcast signal transmitter and receiver, and broadcast signal transmitting and receiving method
SG127771A1 (en) Dual television tuner
WO2011025308A3 (en) Receiver for interleave division multiplexing cooperative diversity and power allocation algorithm thereof
WO2011105763A3 (en) Broadcasting signal transmitter/receiver and broadcasting signal transmission/reception method

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: 07739797

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2009506140

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07739797

Country of ref document: EP

Kind code of ref document: A1