CA2353455A1 - Turbo code interleaver using linear congruential sequences - Google Patents

Turbo code interleaver using linear congruential sequences Download PDF

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Publication number
CA2353455A1
CA2353455A1 CA002353455A CA2353455A CA2353455A1 CA 2353455 A1 CA2353455 A1 CA 2353455A1 CA 002353455 A CA002353455 A CA 002353455A CA 2353455 A CA2353455 A CA 2353455A CA 2353455 A1 CA2353455 A1 CA 2353455A1
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CA
Canada
Prior art keywords
interleaver
encoder
linear congruential
bits
turbo code
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.)
Granted
Application number
CA002353455A
Other languages
French (fr)
Other versions
CA2353455C (en
Inventor
Douglas N. Rowitch
Fuyun Ling
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.)
Qualcomm Inc
Original Assignee
Qualcomm Incorporated
Douglas N. Rowitch
Fuyun Ling
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 Qualcomm Incorporated, Douglas N. Rowitch, Fuyun Ling filed Critical Qualcomm Incorporated
Publication of CA2353455A1 publication Critical patent/CA2353455A1/en
Application granted granted Critical
Publication of CA2353455C publication Critical patent/CA2353455C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/27Coding, 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 using interleaving techniques
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/27Coding, 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 using interleaving techniques
    • H03M13/2789Interleaver providing variable interleaving, e.g. variable block sizes
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/27Coding, 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 using interleaving techniques
    • H03M13/2703Coding, 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 using interleaving techniques the interleaver involving at least two directions
    • H03M13/271Row-column interleaver with permutations, e.g. block interleaving with inter-row, inter-column, intra-row or intra-column permutations
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/27Coding, 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 using interleaving techniques
    • H03M13/275Interleaver wherein the permutation pattern is obtained using a congruential operation of the type y=ax+b modulo c
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/27Coding, 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 using interleaving techniques
    • H03M13/276Interleaving address generation
    • H03M13/2764Circuits therefore
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/27Coding, 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 using interleaving techniques
    • H03M13/2771Internal interleaver for turbo codes
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/29Coding, 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 combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
    • H03M13/2957Turbo codes and decoding

Abstract

A turbo code interleaver (100) using linear congruential sequences may be employed as a two-dimensional interleaver (16) in a turbo coder (10) that also includes first and second constituent encoders (12, 14). The interleaver (16) and the first encoder (12) are each configured to receive input bits. The first encoder (12) produces output symbols (22, 24) therefrom. The interleaver (16) receives the input bits (20) sequentially by row. A linear congruential sequence recursion algorithm within the interleaver (16) serves to pseudo-randomly rearrange, or shuffle, the bits within each row of the interleaver (16). The bits (26) are then output from the interleaver sequentially by column. The second encoder (14) is configured to receive the interleaved bits from the interleaver. The second encoder (14) produces output symbols (28) therefrom. The two streams of output symbols (22, 24) are multiplexed together, with appropriate puncturing. If desired, the linear congruential recursion sequence can be generated in reverse. Also if desired, a bit reversal technique can be used in the interleaver (16) to rearrange, or shuffle, the rows of the interleaver (16).
CA002353455A 1998-12-04 1999-12-03 Turbo code interleaver using linear congruential sequences Expired - Lifetime CA2353455C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/205,511 US6304991B1 (en) 1998-12-04 1998-12-04 Turbo code interleaver using linear congruential sequence
US09/205,511 1998-12-04
PCT/US1999/028580 WO2000035103A1 (en) 1998-12-04 1999-12-03 Turbo code interleaver using linear congruential sequences

Publications (2)

Publication Number Publication Date
CA2353455A1 true CA2353455A1 (en) 2000-06-15
CA2353455C CA2353455C (en) 2009-05-19

Family

ID=22762490

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002353455A Expired - Lifetime CA2353455C (en) 1998-12-04 1999-12-03 Turbo code interleaver using linear congruential sequences

Country Status (15)

Country Link
US (2) US6304991B1 (en)
EP (2) EP1147614A1 (en)
JP (2) JP4723089B2 (en)
KR (1) KR100711326B1 (en)
CN (1) CN1202625C (en)
AU (1) AU763873B2 (en)
BR (1) BR9915926A (en)
CA (1) CA2353455C (en)
HK (1) HK1045030B (en)
ID (1) ID30087A (en)
MX (1) MXPA01005573A (en)
NO (1) NO20012708L (en)
RU (3) RU2313177C2 (en)
UA (1) UA63024C2 (en)
WO (1) WO2000035103A1 (en)

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Also Published As

Publication number Publication date
CA2353455C (en) 2009-05-19
RU2313177C2 (en) 2007-12-20
KR20010080679A (en) 2001-08-22
RU2235424C2 (en) 2004-08-27
JP2002532941A (en) 2002-10-02
EP1147614A1 (en) 2001-10-24
WO2000035103A1 (en) 2000-06-15
EP2267903A2 (en) 2010-12-29
KR100711326B1 (en) 2007-04-27
HK1045030A1 (en) 2002-11-08
US6637000B2 (en) 2003-10-21
US6304991B1 (en) 2001-10-16
HK1045030B (en) 2005-10-07
CN1357172A (en) 2002-07-03
UA63024C2 (en) 2004-01-15
EP2267903A3 (en) 2012-04-04
RU2376702C2 (en) 2009-12-20
ID30087A (en) 2001-11-01
JP2011087329A (en) 2011-04-28
WO2000035103A9 (en) 2001-12-13
AU1931500A (en) 2000-06-26
JP5394410B2 (en) 2014-01-22
CN1202625C (en) 2005-05-18
MXPA01005573A (en) 2002-06-04
NO20012708D0 (en) 2001-06-01
NO20012708L (en) 2001-07-20
AU763873B2 (en) 2003-07-31
BR9915926A (en) 2002-01-15
US20020032890A1 (en) 2002-03-14
JP4723089B2 (en) 2011-07-13
RU2007125429A (en) 2009-01-10

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