Title:
DATA TRANSMISSION METHOD, SENDING DEVICE AND RECEIVING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/094658
Kind Code:
A1
Abstract:
Disclosed are a data transmission method, a sending device and a receiving device, which are used for improving a gain obtained when LDPC codes are interleaved. The method comprises: a sending device encoding information data to obtain first LDPC codes, and then according to a mapping distribution, interleaving the first LDPC codes to obtain a second LDPC code. Compared with the method in the prior art of using a threshold for analysis, in the embodiments of the present invention, a mapping distribution is pre-calculated, and then according to the mapping distribution, first LDPC codes are interleaved. Since a mapping distribution is obtained according to a check matrix and a modulation mode of a first LDPC code, an optimal mapping distribution corresponding to the first LDPC code can be obtained through calculation, so that interleaved LDPC codes can obtain the maximum gain. By means of experimental result analysis, the interleaving method in the embodiments of the present invention, compared with that in the background art, can obtain a larger gain.
Inventors:
LIU XIAOJIAN (CN)
WEI YUEJUN (CN)
WEI YUEJUN (CN)
Application Number:
PCT/CN2016/107133
Publication Date:
May 31, 2018
Filing Date:
November 24, 2016
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L1/00; H03M13/11
Foreign References:
| CN1838543A | 2006-09-27 | |||
| US20150095744A1 | 2015-04-02 | |||
| CN101488819A | 2009-07-22 |
Other References:
ZHAO, WEITING ET AL.: "Design of interleaving scheme for LDPC-BICM systems with higher-order modulation", MICROPROCESSORS, no. 6, 21 March 2016 (2016-03-21), ISSN: 1002-2279
NOWAK, S. ET AL.: "An interleaving scheme for efficient binary LDPC coded higher-order modulation", SOURCE AND CHANNEL CODING (SCC), 2010 INTERNATIONAL ITG CONFERENCE ON (IEEE), 18 January 2010 (2010-01-18), XP031657423
NOWAK, S. ET AL.: "An interleaving scheme for efficient binary LDPC coded higher-order modulation", SOURCE AND CHANNEL CODING (SCC), 2010 INTERNATIONAL ITG CONFERENCE ON (IEEE), 18 January 2010 (2010-01-18), XP031657423
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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