Title:
METHOD AND APPARATUS FOR ENCODING AND DECODING LDPC CODES
Document Type and Number:
WIPO Patent Application WO/2018/082290
Kind Code:
A1
Abstract:
Provided is an efficiently decodable QC-LDPC code which is based on a base matrix of an irregular QC-LDPC matrix, the base matrix being formed by columns and rows, the columns being dividable into one or more columns corresponding to punctured variable nodes (i.e. variable nodes corresponding to information bits which are used by the encoder but are not transmitted to or effectively treated as not received by the decoder) and columns corresponding to not-punctured variable nodes, and the rows being dividable into high-density rows (i.e. rows having a weight which is above a first weight) and low-density rows (i.e. rows having a weight which is below a second weight, wherein the second weight is equal to or smaller than the first weight), wherein a matrix defined by the overlap of the low-density rows and the columns corresponding to the not-punctured variable nodes is dividable into groups of orthogonal rows.
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Inventors:
SHUTKIN YURII SERGEEVICH (CN)
PANTELEEV PAVEL ANATOLYEVICH (CN)
LETUNOVSKIY ALEKSEY ALEXANDROVICH (CN)
GASANOV ELYAR ELDAROVICH (CN)
KALACHEV GLEB VYACHESLAVOVICH (CN)
MAZURENKO IVAN LEONIDOVICH (CN)
PANTELEEV PAVEL ANATOLYEVICH (CN)
LETUNOVSKIY ALEKSEY ALEXANDROVICH (CN)
GASANOV ELYAR ELDAROVICH (CN)
KALACHEV GLEB VYACHESLAVOVICH (CN)
MAZURENKO IVAN LEONIDOVICH (CN)
Application Number:
PCT/CN2017/086017
Publication Date:
May 11, 2018
Filing Date:
May 25, 2017
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H03M13/11; H04L1/00
Foreign References:
| US20150006989A1 | 2015-01-01 | |||
| US20130086445A1 | 2013-04-04 | |||
| US20090183047A1 | 2009-07-16 | |||
| US20080126908A1 | 2008-05-29 |
Other References:
See also references of EP 3533146A4
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