Title:
FALSE ALARM RATE SUPPRESSION FOR POLAR CODES
Document Type and Number:
WIPO Patent Application WO/2018/148866
Kind Code:
A1
Abstract:
Methods, systems, and devices for wireless communication are described for false alarm rate suppression for polar codes. A list decoder may determine a path metric for each of multiple paths through a code tree for decoding a polar-encoded codeword, wherein a portion of each of the path metrics corresponds to at least one frozen bit in the polar-encoded codeword. A false alarm suppressor may determine a modified path metric for each of the paths by excluding the respective portion corresponding to the at least one frozen bit and determine a check metric for at least one of the paths based at least in part on the modified path metrics. An error detector may perform an error detecting algorithm on a bit sequence corresponding to the at least one of the plurality of paths based at least in part on the check metric satisfying a threshold.
Inventors:
WU GAOJIN (US)
XU CHANGLONG (US)
WEI CHAO (US)
HOU JILEI (US)
XU CHANGLONG (US)
WEI CHAO (US)
HOU JILEI (US)
Application Number:
PCT/CN2017/073488
Publication Date:
August 23, 2018
Filing Date:
February 14, 2017
Export Citation:
Assignee:
QUALCOMM INC (US)
WU GAOJIN (CN)
XU CHANGLONG (CN)
WEI CHAO (CN)
HOU JILEI (CN)
WU GAOJIN (CN)
XU CHANGLONG (CN)
WEI CHAO (CN)
HOU JILEI (CN)
International Classes:
H03M13/09
Foreign References:
| CN104124979A | 2014-10-29 | |||
| CN105281785A | 2016-01-27 | |||
| US20150263767A1 | 2015-09-17 | |||
| US20140019820A1 | 2014-01-16 |
Other References:
NIU, KAI ET AL.: "CRC-Aided Decoding of Polar Codes", IEEE COMMUNICATIONS LETTERS, vol. 16, no. 10, 31 October 2012 (2012-10-31), pages 1668 - 1670, XP011469263
Attorney, Agent or Firm:
NTD PATENT & TRADEMARK AGENCY LIMITED (CN)
Download PDF: