The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 13, 2022
Filed:
Apr. 15, 2020
Huawei Technologies Co., Ltd., Guangdong, CN;
Mingmin Zhao, Shenzhen, CN;
Gongzheng Zhang, Hangzhou, CN;
Chen Xu, Hangzhou, CN;
Rong Li, Hangzhou, CN;
HUAWEI TECHNOLOGIES CO., LTD., Guangdong, CN;
Abstract
This disclosure provides a data retransmission method and apparatus. The method includes: A transmitting device obtains information to be transmitted for a ttime, where the information to be transmitted for the ttime includes Rextension locations and information to be transmitted for a (t−1)time, and the extension locations include Minformation bits and Lcheck bits corresponding to the Minformation bits. The transmitting device then performs Polar encoding on the information to be transmitted for the ttime, to obtain a codeword after the Polar encoding, obtains a codeword for (t−1)retransmission based on the codeword after the Polar encoding, and transmits the codeword for (t−1)retransmission. A receiving device performs polar decoding after receiving the codeword for (t−1)retransmission, to obtain a decoding result of codewords for t times of transmission. By performing, on an encoding side, check encoding on the information bits in an extension part, a decoding path can be reduced in a decoding process, thereby greatly reducing decoding complexity, and reducing storage overheads and calculation overheads.