WO2009011116A1 - Transmitting device and transmitting method - Google Patents

Transmitting device and transmitting method Download PDF

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Publication number
WO2009011116A1
WO2009011116A1 PCT/JP2008/001875 JP2008001875W WO2009011116A1 WO 2009011116 A1 WO2009011116 A1 WO 2009011116A1 JP 2008001875 W JP2008001875 W JP 2008001875W WO 2009011116 A1 WO2009011116 A1 WO 2009011116A1
Authority
WO
WIPO (PCT)
Prior art keywords
ldpc
encoded data
section
transmitting device
encoding
Prior art date
Application number
PCT/JP2008/001875
Other languages
French (fr)
Japanese (ja)
Inventor
Yutaka Murakami
Shutai Okamura
Masayuki Orihashi
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 US12/668,829 priority Critical patent/US8423871B2/en
Priority to CN2008800238370A priority patent/CN101689968B/en
Priority claimed from JP2008181616A external-priority patent/JP5247273B2/en
Publication of WO2009011116A1 publication Critical patent/WO2009011116A1/en

Links

Classifications

    • 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
    • H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
    • H03M13/11—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits using multiple parity bits
    • H03M13/1102—Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
    • H03M13/1148—Structural properties of the code parity-check or generator matrix
    • H03M13/116—Quasi-cyclic LDPC [QC-LDPC] codes, i.e. the parity-check matrix being composed of permutation or circulant sub-matrices
    • 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
    • H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
    • H03M13/11—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits using multiple parity bits
    • H03M13/1102—Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
    • H03M13/1105—Decoding
    • 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
    • H04L1/0047—Decoding adapted to other signal detection operation
    • H04L1/005—Iterative decoding, including iteration between signal detection and decoding operation
    • 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
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes
    • 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
    • H04L5/0042—Arrangements for allocating sub-channels of the transmission path intra-user or intra-terminal allocation
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Error Detection And Correction (AREA)

Abstract

A transmitting device and method enabling improvement of the reception quality on the receiving side when the LDPC-CC (Low-Density Parity-Check Convolutional Codes) encoding is used. The transmitting device (100) comprises an LDPC-CC encoding section (102), a sorting section (121) for sorting the encoded data (120) acquired by the LDPC-CC encoding section (102) into a first encoded data set (103_A) corresponding to the column number of the column containing “1” in a part of an LDPC-CC check matrix H from which a protograph is excluded and a second encoded data set (103_B) corresponding to the column numbers of the columns other than that, and a frame constructing section (a control section (106)) for constructing a transmission frame where the first and second encoded data sets (103_A, 103_B) are arranged in positions different in time or frequency in the transmission frame.
PCT/JP2008/001875 2007-07-13 2008-07-11 Transmitting device and transmitting method WO2009011116A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/668,829 US8423871B2 (en) 2007-07-13 2008-07-11 Transmitting device and transmitting method
CN2008800238370A CN101689968B (en) 2007-07-13 2008-07-11 Transmitting device and transmitting method

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007-184540 2007-07-13
JP2007184540 2007-07-13
JP2008181616A JP5247273B2 (en) 2007-07-13 2008-07-11 Transmitting apparatus and transmitting method
JP2008-181616 2008-07-11

Publications (1)

Publication Number Publication Date
WO2009011116A1 true WO2009011116A1 (en) 2009-01-22

Family

ID=40259462

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/001875 WO2009011116A1 (en) 2007-07-13 2008-07-11 Transmitting device and transmitting method

Country Status (1)

Country Link
WO (1) WO2009011116A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008228285A (en) * 2007-02-16 2008-09-25 Matsushita Electric Ind Co Ltd Transmitting device, receiving device, encoder, and encoding method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008228285A (en) * 2007-02-16 2008-09-25 Matsushita Electric Ind Co Ltd Transmitting device, receiving device, encoder, and encoding method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
RICHTER G. ET AL.: "Irregular Low-Density Parity-Check Convolutional Codes Based on Protographs", IEEE INTERNATIONAL SYMPOSIUM, July 2006 (2006-07-01), pages 1633 - 1637, XP031032491 *

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