HRP20210936T1 - Postupak i uređaj za kodiranje i dekodiranje kanala u komunikacijskom sustavu korištenjem koda za provjeru pariteta niske gustoće - Google Patents
Postupak i uređaj za kodiranje i dekodiranje kanala u komunikacijskom sustavu korištenjem koda za provjeru pariteta niske gustoće Download PDFInfo
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- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
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- 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
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- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
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- 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
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- H03M13/61—Aspects and characteristics of methods and arrangements for error correction or error detection, not provided for otherwise
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- 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
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- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- 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
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Claims (6)
1. Postupak za dekodiranje podataka u prijamniku u sustavu za emitiranje, koji se sastoji od:
demodulacije prijamnog signala, koji signal uključuje podatke koda za provjeru pariteta niske gustoće, LDPC, kod, pri čemu se LDPC kod dobiva LDPC kodiranjem pomoću matrice provjere pariteta duljine N1, informacijskog dijela s informacijskom duljinom K1, i paritetni dio s paritetom duljine (N1-K1), K1 stupac u informacijskom dijelu grupiran je u K1IM1 grupu stupaca, pri čemu se svaka grupa stupaca sastoji od M1 stupaca,
određivanje uzorka skraćivanja iz demoduliranog signala; i
određivanje podataka o položaju za skraćene informacijske bitove na temelju uzorka skraćivanja; i
dekodiranje podataka u demoduliranom signalu temeljem podataka o položaju,
gdje N1 je 16200, K1 je 7200, i M1 je 360,
pri čemu LDPC kod ima duljinu jednaku N1 bitovima, K1 informacijski bitovi odgovaraju informacijskom dijelu, i N1-K1 bitovi pariteta odgovaraju paritetnom dijelu,
naznačen time da informacijski dijelovi imaju strukturu određenu:
[image]
[image]
gdje:
i = indeks koji označava i-tu grupu stupaca;
j = indeks koji označava j-tu i stupac u grupi stupaca;
q = (N1-K1)IM1;
M1 = broj stupaca po grupi stupaca;
D1 = stupanj, tj. broj ulaza nejednakih nuli, 0-tog stupca u svakoj i- toj grupi stupaca;
[image]
pozicije redaka s vrijednosti od 1 u 0-tom stupcu u svakoj i-toj grupi stupaca; i
[image]
= pozicije redaka s vrijednosti od 1 u j-tom stupcu u i-toj grupi stupaca,
pri čemu je uzorak skraćivanja povezan s indeksima π(0), ..., π (m-1) koji odgovaraju m grupi informacijskih bitova od K1IM1 = 20 grupa informacijskih bitova koji odgovaraju grupama stupaca u kojima su svi informacijski bitovi skraćeni, gdje je
[image]
u kojoj KΔ=K1-K2, K2 je informacija duljine skraćenog LDPC koda koji će se dobiti skraćivanjem LDPC koda, i KΔ je broj skraćenih informacijskih bitova, i
pri čemu je uzorak skraćivanja određen temeljem modulacijske sheme, i
pri čemu u slučaju da je modulacijska shema kvadraturna modulacija faze, QPSK, modulacijska shema, uzorak skraćivanja je određen sljedećom tablicom,
[image]
2. Postupak temeljem zahtjeva 1, naznačen time da se uzorak skraćivanja dalje sastoji od indeksa π(m) koji odgovara grupi informacijskih bitova u kojoj su (KΔ - 360m) informacijski bitovi dodatno skraćeni, u slučaju da je broj informacijskih bitova KΔ koji treba skratiti veći od broja svih informacijskih bitova uključenih u m grupu informacijskih bitova.
3. Uređaj za dekodiranje podataka, koji uređaj se sastoji od:
demodulatora podešenog za demodulaciju primljenog signala, signal uključuje podatke koda za provjeru pariteta niske gustoće, LDPC, kod, pri čemu se LDPC kod dobiva LDPC kodiranjem pomoću matrice provjere pariteta duljine N1 informacijskog dijela s duljinom informacije K1, i paritetnog dijela s paritetom duljine (N1-K1), K1 stupac u dijelu informacije grupiran je u K1IM1 grupu stupaca, pri čemu se svaka grupa stupaca sastoji od M1 stupaca, i
uređaj koji se dalje sastoji od:
odrednice uzorka skraćivanja podešenog da
određuje uzorak skraćivanja iz demoduliranog signala; i
određuje položaj podataka u skraćenim informacijskim bitovima temeljem uzorka skraćivanja; i
dekodera podešenog za dekodiranje podataka u demoduliranom signalu temeljem položaja informacije, gdje N1 je 16200, K1 je 7200, i M1 je 360,
pri čemu LDPC kod ima duljinu jednaku N1 bitovima, K1 informacijski bitovi odgovaraju informacijskom dijelu, i N1-K1 bitovi pariteta odgovaraju paritetnom dijelu,
naznačen time da informacijski dijelovi imaju strukturu određenu:
[image]
[image]
gdje:
i = indeks koji označava i-tu grupu stupaca;
j = indeks koji označava j-ti stupac u grupi stupaca;
q = (N1-K1)IM1;
M1 = broj stupaca po grupi stupaca;
D1 = stupanj, tj. broj ulaza nejednakih nuli, 0-tog stupca u svakoj i- toj grupi stupaca;
[image]
pozicije redaka s vrijednosti od 1 u 0-tom stupcu u svakoj i-toj grupi stupaca; i
[image]
= pozicije redaka s vrijednosti od 1 u j-tom stupcu u i-toj grupi stupaca,
pri čemu je uzorak skraćivanja povezan s indeksima π(0), ..., π(m-1) koji odgovaraju m grupi informacijskih bitova od K1IM1 = 20 grupa informacijskih bitova koji odgovaraju grupama stupaca u kojima su svi informacijski bitovi skraćeni, gdje je
[image]
u kojoj KΔ=K1-K2, K2 je informacija duljine skraćenog LDPC koda koji će se dobiti skraćivanjem LDPC koda, i Ka je broj skraćenih informacijskih bitova, a pri čemu je uzorak skraćivanja određen temeljem modulacijske sheme, i
pri čemu u slučaju da je modulacijska shema kvadraturna modulacija faze, QPSK, modulacijska shema, uzorak skraćivanja je određen sljedećom tablicom,
[image]
4. Uređaj temeljem zahtjeva 3, naznačen time da se uzorak skraćivanja dalje sastoji od indeksa π(m) koji odgovara grupi informacijskih bitova u kojoj su (KΔ - 360m) informacijski bitovi dodatno skraćeni, u slučaju da je broj bitova informacije KΔ koji treba skratiti veći od broja svih informacijskih bitova uključenih u m grupu informacijskih bitova.
5. Uređaj podešen za kodiranje podataka koji generiraju provjeru pariteta niske gustoće, LDPC, kod,
naznačen time da se LDPC kod dobija kodiranjem matrice provjere pariteta duljine N1, informacijski dio s duljinom informacije K1, i paritetni dio s paritetom duljine (N1-K1), K1 stupac u informacijskom dijelu grupiran je u K1IM1 grupu stupaca, pri čemu se svaka grupa stupaca sastoji od M1 stupaca, i
gdje N1 je 16200, K1 je 7200, i M1 je 360,
pri čemu LDPC kod ima duljinu jednaku N1 bitovima, K1 informacijski bitovi odgovaraju informacijskom dijelu, i N1-K1 bitovi pariteta odgovaraju paritetnom dijelu,
a informacijski dio ima strukturu određenu:
[image]
[image]
gdje:
i = indeks koji označava i-tu grupu stupaca;
j = indeks koji označava j-ti stupac u grupi stupaca;
q = (N1-K1)IM1;
M1 = broj stupaca po grupi stupaca;
D1 = stupanj, tj. broj ulaza nejednakih nuli, 0-tog stupca u svakoj i- toj grupi stupaca;
[image]
pozicije redaka s vrijednosti od 1 u 0-tom stupcu u svakoj i-toj grupi stupaca; i
[image]
= pozicije redaka s vrijednosti od 1 u j-tom stupcu u i-toj grupi stupaca,
uređaj se sastoji od aplikatora za skraćivanje uzorka i uređaja za kodiranje,
pri čemu aplikator za skraćivanja uzorka je podešen da:
određuje broj m grupa informacijskih bitova između K1IM1 = 20 informacijskih bitova koji odgovaraju grupama stupaca, temeljem broja KΔ informacijskih bitova koji će se skratiti, gdje je KΔ=K1-K2 u kojem je K2 je duljina informacije skraćeni LDPC koda koji se dobiva skraćivanjem LDPC koda i
[image]
skraćuje sve informacijske bitove uključene u m informacijsku grupu bitova koji odgovaraju indeksima π(0), ..., π(m-1) temeljem uzorka skraćivanja, a obrazac skraćivanja određuje se temeljem modulacijske sheme, pri čemu u slučaju da je modulacijska shema kvadraturna modulacija faze, QPSK, modulacijska shema, obrazac skraćivanja je određen sljedećom tablicom,
[image]
pri čemu je uređaj za kodiranje je podešen da:
LDPC kodira informacijske bitove uključujući skraćene informacijske bitove za generiranje LDPC koda.
6. Uređaj temeljem zahtjeva 5, naznačen time da se nadalje sastoji od:
aplikatora za skraćivanje uzorka podešenog da dodatno skraćuje (KΔ - 360m) informacijske bitove uključene u grupu informacijskih bitova koji odgovara indeksu π(m) temeljem uzorka skraćivanja, u slučaju da je broj informacijskih bitova KΔ koji se trebaju skratiti veći od svih informacijskih bitova u tim m grupama informacijskih bitova.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20080017279 | 2008-02-26 | ||
| KR20080022484 | 2008-03-11 | ||
| KR1020080025144A KR101503059B1 (ko) | 2008-02-26 | 2008-03-18 | 저밀도 패리티 검사 부호를 사용하는 통신 시스템에서 채널 부호/복호 방법 및 장치 |
| EP12166288.6A EP2490337B1 (en) | 2008-02-26 | 2009-02-26 | Method and apparatus for encoding and decoding in a communication system using low-density parity check codes |
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| HRP20221436TT HRP20221436T1 (hr) | 2008-02-26 | 2009-02-26 | Postupak i uređaj za kodiranje i dekodiranje kanala u komunikacijskom sustavu korištenjem koda za provjeru pariteta niske gustoće |
| HRP20210936TT HRP20210936T1 (hr) | 2008-02-26 | 2021-06-10 | Postupak i uređaj za kodiranje i dekodiranje kanala u komunikacijskom sustavu korištenjem koda za provjeru pariteta niske gustoće |
| HRP20210937TT HRP20210937T1 (hr) | 2008-02-26 | 2021-06-10 | Postupak i uređaj za kodiranje i dekodiranje kanala u komunikacijskom sustavu korištenjem koda za provjeru pariteta niske gustoće |
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| US (1) | US8176384B2 (hr) |
| EP (5) | EP2490337B1 (hr) |
| JP (3) | JP5440804B2 (hr) |
| KR (1) | KR101503059B1 (hr) |
| CN (3) | CN102017426B (hr) |
| AU (1) | AU2009217934B2 (hr) |
| CY (2) | CY1124200T1 (hr) |
| DK (3) | DK3849088T3 (hr) |
| ES (5) | ES2873091T3 (hr) |
| HR (3) | HRP20221436T1 (hr) |
| HU (4) | HUE055052T2 (hr) |
| LT (3) | LT3849088T (hr) |
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| PT (3) | PT2363962T (hr) |
| RU (4) | RU2454794C2 (hr) |
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| AU2008332040B2 (en) * | 2007-12-06 | 2012-04-05 | Postech Academy Industry Foundation | Method and apparatus for encoding and decoding channel in a communication system using low-density parity-check codes |
| KR101503059B1 (ko) * | 2008-02-26 | 2015-03-19 | 삼성전자주식회사 | 저밀도 패리티 검사 부호를 사용하는 통신 시스템에서 채널 부호/복호 방법 및 장치 |
| KR101670511B1 (ko) | 2010-05-07 | 2016-10-28 | 삼성전자주식회사 | 저밀도 패리티 검사 부호를 사용하는 통신 시스템에서 채널 부호/복호 방법 및 장치 |
| CA2818126C (en) * | 2010-12-03 | 2018-06-19 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting and receiving data in communication system |
| JP2012151656A (ja) * | 2011-01-19 | 2012-08-09 | Sony Corp | データ処理装置、及び、データ処理方法 |
| JP2012151655A (ja) * | 2011-01-19 | 2012-08-09 | Sony Corp | データ処理装置、及び、データ処理方法 |
| JP5630282B2 (ja) * | 2011-01-19 | 2014-11-26 | ソニー株式会社 | データ処理装置、及び、データ処理方法 |
| JP5630283B2 (ja) * | 2011-01-19 | 2014-11-26 | ソニー株式会社 | データ処理装置、及び、データ処理方法 |
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