DYNAMIC FROZEN BITS AND ERROR DETECTION FOR POLAR CODES

WIPO Patent Application WO/2018/191908

A1

Methods, systems, and devices for wireless communication are described for dynamic frozen bits of polar codes for early termination and performance improvement. A wireless device may receive a signal comprising a codeword encoded using a polar code. The wireless device may perform decoding of the codeword including at least: parity check of a first subset of decoding paths for making a decision on early termination of decoding of the codeword based on dynamic frozen bits, and generating path metrics for a second subset of the decoding paths that each pass the parity check based on the dynamic frozen bits, and performing error detection on a bit sequence corresponding to one of the second subset of the decoding paths based at part on error detection bits and the generated path metrics. The wireless device may process the information bits based on a result of the decoding.

XU CHANGLONG (US)
LI JIAN (US)
WEI CHAO (US)
JIANG JING (US)
HOU JILEI (US)

PCT/CN2017/081228

October 25, 2018

April 20, 2017

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QUALCOMM INC (US)
XU CHANGLONG (CN)
LI JIAN (CN)
WEI CHAO (CN)
JIANG JING (US)
HOU JILEI (US)

H03M13/13; H04L1/00

US20160294418A1	2016-10-06
US20140169388A1	2014-06-19
US20150358113A1	2015-12-10
CN105933010A	2016-09-07
CN103220001A	2013-07-24

TRIFONOV, PETER ET AL.: "Polar Codes with Dynamic Frozen Symbols and Their Decoding by Directed Search", INFORMATION THEORY WORKSHOP(ITW), 2013 IEEE, 13 September 2013 (2013-09-13), pages 1 - 5, XP032536315

NTD PATENT & TRADEMARK AGENCY LIMITED (CN)

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