HRP20150905T1 - Obrasci permutacije bitova za ldpc kodiranu modulaciju i konstelacije 64qam - Google Patents

Obrasci permutacije bitova za ldpc kodiranu modulaciju i konstelacije 64qam Download PDF

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Publication number
HRP20150905T1
HRP20150905T1 HRP20150905TT HRP20150905T HRP20150905T1 HR P20150905 T1 HRP20150905 T1 HR P20150905T1 HR P20150905T T HRP20150905T T HR P20150905TT HR P20150905 T HRP20150905 T HR P20150905T HR P20150905 T1 HRP20150905 T1 HR P20150905T1
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Croatia
Prior art keywords
corresponds
bits
nframe
word
signals
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HRP20150905TT
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English (en)
Inventor
Giovanni Vitale
Vittoria Mignone
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Rai Radiotelevisione Italiana S.P.A.
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Priority claimed from ITTO20080154 external-priority patent/ITTO20080154A1/it
Priority claimed from ITTO20080173 external-priority patent/ITTO20080173A1/it
Application filed by Rai Radiotelevisione Italiana S.P.A. filed Critical Rai Radiotelevisione Italiana S.P.A.
Publication of HRP20150905T1 publication Critical patent/HRP20150905T1/hr

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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
    • H03M13/27—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 using interleaving techniques
    • H03M13/2778—Interleaver using block-wise interleaving, e.g. the interleaving matrix is sub-divided into sub-matrices and the permutation is performed in blocks of 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
    • 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
    • H03M13/1165—QC-LDPC codes as defined for the digital video broadcasting [DVB] specifications, e.g. DVB-Satellite [DVB-S2]
    • 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
    • H03M13/25—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM]
    • H03M13/255—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM] with Low Density Parity Check [LDPC] codes
    • 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
    • H04L1/0041—Arrangements at the transmitter end
    • 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
    • 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
    • H04L1/0071—Use of interleaving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/04—Modulator circuits; Transmitter circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • 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
    • H04L1/0057—Block codes

Claims (10)

1. Postupak za obradu digitalnih signala koji se šalju u QAM modulator tip 64QAM, navedeni signali su audio i video signali kodirani prema kodu LDPC s kodnim omjerom 3/5 u paketima koji sadrže NFRAME bitove, pri čemu je navedeni kod LDPC s kodnim omjerom 3/5 u skladu sa standardom DVB-S2, pri čemu su navedeni paketi upisani na matrici za prepletanje s pomoću blokova za umetanje, navedena matrica za prepletanje koja ima ukupnu veličinu NFRaMe i sadržava 12 stupaca, a broj redova jednak je NFRAME podijeljeno sa 12, Demux blok izvodi permutaciju bitova primljenih od navedenog bloka za prepletanje prije funkcije mapiranja konstelacije, a Mapper blok povezuje bitove koje je proizveo navedeni Demux blok s koordinatama konstelacije 64QaM, naznačen time, da se navedena permutacija izvodi na 12-bitnim riječima, a sastoji se od generiranja riječi Y koja sadrži bitove y0 y1 y2 y3 y4 y5 y6 y7 y8 y9 y10 y11, tim redoslijedom, počevši od riječi B koja sadrži bitove b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 b10 b11, tim redoslijedom, od kojih su bitovi y0 i b0 najvažniji bitovi riječi Y, odnosno B, a bitovi y11 i b11 su najmanje važni bitovi riječi Y, odnosno B, pri čemu: - y0 odgovara b4, - y1 odgovara b6, - y2 odgovara b0, - y3 odgovara b5, - y4 odgovara b8, - y5 odgovara b10, - y6 odgovara b2, - y7 odgovara b1, - y8 odgovara b7, - y9 odgovara b3, - y10 odgovara b11, - y11 odgovara b9.
2. Postupak u skladu s patentnim zahtjevom 1, naznačen time, da je navedeni broj NFRAmE bitova jednak 64 800.
3. Postupak u skladu s patentnim zahtjevom 1, naznačen time, da je navedeni broj NFRAmE bitova jednak 16 200.
4. Sustav za prijenos digitalnih signala koji sadrže modulator QAM, naznačen time, da je prilagođen za primjenu postupka u skladu s bilo kojim od patentnih zahtjeva 1 do 3.
5. Sustav u skladu s patentnim zahtjevom 4, naznačen time, da sadržava audio/video odašiljač digitalnog signala za emitiranje digitalnih zemaljskih televizijskih signala.
6. Postupak za obradu digitalnih signala primljenih putem QAM demodulatora tip 64QAM, navedeni signali su audio i video signali kodirani prema LDPC kodu s kodnim omjerom 3/5 u paketima koji sadrže NFRAME bitove, pri čemu je navedeni kod LDPC s kodnim omjerom 3/5 u skladu sa standardom DVB-S2, gdje de-Mapper blok implementira funkciju demapiranja konstelacije i povezuje koordinate konstelacije 64QaM s odgovarajućim paketima koji sadržavaju više bitova, pri čemu Demux blok izvodi permutaciju bitova navedenih više bitova nakon funkcije demapiranja kontelacije, a broj NFRAME navedenih permutiranih bitova upisan je na matrici za prepletanja s pomoću bloka za raspletanje, navedena matrica za prepletanje ima ukupnu veličinu NFRAME i sadržava 12 stupaca, a broj redova jednak je NFRAME podijeljeno sa 12, naznačen time, da se navedena permutacija izvodi na 12-bitnim riječima, a sastoji se od generiranja riječi B koja se sastoji od bitova b0 b1 b2 b3 b4 b5 b b7 b8 b9 b10 b11, tim redoslijedom, počevši od riječi Y koja se sastoji od bitova y0 y1 y2 y3 y4 y5 y6 y6 y7 y8 y9 y10 y11, tim redoslijedom, od kojih su bitovi y0 i b0 najvažniji bitovi riječi Y, odnosno B, a bitovi y11 i b11 su najmanje važni bitovi riječi Y, odnosno B, pri čemu - y0 odgovara b4, - y1 odgovara b6, - y2 odgovara b0, - y3 odgovara b5, - y4 odgovara b8, - y5 odgovara b10, - y6 odgovara b2, - y7 odgovara b1, - y8 odgovara b7, - y9 odgovara b3, - y10 odgovara b11, - y11 odgovara b9.
7. Postupak u skladu s patentnim zahtjevom 6, naznačen time, da je navedeni broj NFRAmE bitova jednak 64 800.
8. Postupak u skladu s patentnim zahtjevom 6, naznačen time, da je navedeni broj NFRAmE bitova jednak 16 200
9. Sustav za primanje digitalnih signala koji sadrži QAM demodulator, naznačen time, da je prilagođen za primjenu postupka u skladu s bilo kojim od patentnih zahtjeva 6 do 8.
10. Sustav u skladu s patentnim zahtjevom 9, naznačen time, da sadržava audio/video digitalni signalni prijamnik za emitiranje digitalnih zemaljskih televizijskih signala.
HRP20150905TT 2008-03-03 2015-08-27 Obrasci permutacije bitova za ldpc kodiranu modulaciju i konstelacije 64qam HRP20150905T1 (hr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITTO20080154 ITTO20080154A1 (it) 2008-03-03 2008-03-03 Metodi di elaborazione di segnali digitali e sistemi di trasmissione e ricezione che li utilizzano
ITTO20080173 ITTO20080173A1 (it) 2008-03-06 2008-03-06 Metodi di elaborazione di segnali digitali e sistemi di trasmissione e ricezione che li utilizzano
EP10158893.7A EP2254250B1 (en) 2008-03-03 2009-03-02 Bit permutation patterns for LDPC coded modulation and 64QAM constellations

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HRP20150903TT HRP20150903T1 (hr) 2008-03-03 2015-08-27 Obrasci permutacije bitova za ldpc kodiranu modulaciju i konstelacije qam
HRP20150905TT HRP20150905T1 (hr) 2008-03-03 2015-08-27 Obrasci permutacije bitova za ldpc kodiranu modulaciju i konstelacije 64qam
HRP20150904TT HRP20150904T1 (hr) 2008-03-03 2015-08-27 Obrasci permutacije bitova za ldpc kodiranu modulaciju i konstelacije 16qam

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US (3) US8718186B2 (hr)
EP (3) EP2248265B1 (hr)
JP (1) JP5325237B2 (hr)
KR (3) KR101566677B1 (hr)
CN (3) CN101971503B (hr)
DK (3) DK2254249T3 (hr)
ES (3) ES2545788T3 (hr)
HK (3) HK1150688A1 (hr)
HR (3) HRP20150903T1 (hr)
HU (3) HUE027115T2 (hr)
PL (3) PL2254250T3 (hr)
SI (3) SI2254250T1 (hr)
WO (1) WO2009109830A1 (hr)

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HRP20150904T1 (hr) 2015-10-09
US20140250351A1 (en) 2014-09-04
CN104135335A (zh) 2014-11-05
CN101971503B (zh) 2014-07-02
EP2254249A1 (en) 2010-11-24
EP2254250B1 (en) 2015-05-27
PL2254249T3 (pl) 2015-11-30
KR101623561B1 (ko) 2016-05-23
KR20150129055A (ko) 2015-11-18
DK2254249T3 (en) 2015-08-31
CN101971503A (zh) 2011-02-09
DK2254250T3 (en) 2015-08-31
HK1151141A1 (en) 2012-01-20
SI2254250T1 (sl) 2015-10-30
PL2254250T3 (pl) 2015-11-30
ES2545788T3 (es) 2015-09-15
KR101623468B1 (ko) 2016-05-23
EP2248265B1 (en) 2015-05-27
ES2545782T3 (es) 2015-09-15
US8718186B2 (en) 2014-05-06
CN104135336B (zh) 2018-02-13
KR101566677B1 (ko) 2015-11-06
US9240809B2 (en) 2016-01-19
PL2248265T3 (pl) 2015-11-30
HRP20150903T1 (hr) 2015-10-09
EP2254249B1 (en) 2015-05-27
JP2011514090A (ja) 2011-04-28
DK2248265T3 (en) 2015-08-31
SI2254249T1 (sl) 2015-10-30
US20110103502A1 (en) 2011-05-05
US9246517B2 (en) 2016-01-26
WO2009109830A1 (en) 2009-09-11
ES2545789T3 (es) 2015-09-15
JP5325237B2 (ja) 2013-10-23
KR20150127744A (ko) 2015-11-17
HUE025389T2 (en) 2016-02-29
HK1150688A1 (en) 2012-01-06
HUE027114T2 (en) 2016-08-29
EP2248265A1 (en) 2010-11-10
EP2254250A1 (en) 2010-11-24
HUE027115T2 (en) 2016-08-29
HK1151140A1 (en) 2012-01-20
US20140250350A1 (en) 2014-09-04
SI2248265T1 (sl) 2015-10-30
CN104135335B (zh) 2018-02-13
KR20100136480A (ko) 2010-12-28
CN104135336A (zh) 2014-11-05

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