WO2024243938 - METHODS, SYSTEMS, AND APPARATUS FOR PROTOGRAPH-BASED LOW DENSITY PARITY CHECK CODING
National phase entry is expected:
Publication Number
WO/2024/243938
Publication Date
05.12.2024
International Application No.
PCT/CN2023/097662
International Filing Date
31.05.2023
Title **
[English]
METHODS, SYSTEMS, AND APPARATUS FOR PROTOGRAPH-BASED LOW DENSITY PARITY CHECK CODING
[French]
PROCÉDÉS, SYSTÈMES ET APPAREIL DE CODAGE DE CONTRÔLE DE PARITÉ À FAIBLE DENSITÉ À BASE DE PROTOGRAPHE
Applicants **
HUAWEI TECHNOLOGIES CO., LTD.
Inventors
ZHANG, Huazi
TONG, Wen
MA, Jianglei
GE, Yiqun
BI, Xiaoyan
WANG, Jun
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
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| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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| Number of Office Actions | * |
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International Searching Authority |
CNIPA
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| * | |
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2577 | |
| EPO | Filing, Examination, Granting | 24669 | |
| Japan | Filing, Examination, Granting | 2892 | |
| South Korea | Filing, Examination, Granting | 3638 | |
| USA | Filing, Examination, Granting | 9740 |
Total:
43,516
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
Low density parity check (LDPC) codes for wireless communications are constructed to adapt to channel conditions. A method of encoding input bits by an LDPC code to obtain encoded bits is provided. A method of decoding the encoded bits is also provided. The LDPC code has a parity check matrix obtained by lifting a protograph matrix according to a lifting matrix, in which the lifting matrix is based on a polar kernel. Using an LDPC code that was obtained by lifting a protograph matrix based on a polar kernel can improve convergence speed and decoding efficiency, whilst still allowing the code to be adapted to account for changes in the state of the channel.[French]
La présente invention concerne des codes de contrôle de parité à faible densité (LDPC) pour des communications sans fil qui sont construits pour s'adapter à des conditions de canal. L'invention concerne également un procédé de codage de bits d'entrée par un code LDPC pour obtenir des bits codés. L'invention concerne également un procédé de décodage des bits codés. Le code LDPC comprend une matrice de vérification de parité obtenue par levage d'une matrice de protographe selon une matrice de levage, dans laquelle la matrice de levage est basée sur un noyau polaire. L'utilisation d'un code LDPC qui a été obtenu par levage d'une matrice de protographe sur la base d'un noyau polaire peut améliorer la vitesse de convergence et l'efficacité de décodage, tout en permettant toujours au code d'être adapté pour tenir compte des changements de l'état du canal.