Title:
METHOD AND APPARATUS FOR ENCODING DATA USING A POLAR CODE
Document Type and Number:
WIPO Patent Application WO/2018/050063
Kind Code:
A1
Abstract:
Embodiment techniques map parity bits to sub-channels based on their row weights. The row weight for a sub-channel may be viewed as the number of "ones" in the corresponding row of the Kronecker matrix or as a power of 2 with the exponent (i.e. the hamming weight) being the number of "ones" in the binary representation of the sub-channel index (further described below). In one embodiment， candidate sub-channels that have certain row weight values are reserved for parity bit (s). Thereafter, K information bits may be mapped to the K most reliable remaining sub-channels, and a number of frozen bits (e.g. N-K) may be mapped to the least reliable remaining sub-channels. Parity bits may then mapped to the candidate sub-channels, and parity bit values are determined based on a function of the information bits.
Inventors:
ZHANG HUAZI (CN)
TONG JIAJIE (CN)
LI RONG (CN)
WANG JUN (CN)
TONG WEN (CA)
GE YIQUN (CA)
LIU XIAOCHENG (CN)
ZHANG GONGZHENG (CN)
WANG JIAN (CA)
CHENG NAN (CA)
ZHANG QIFAN (CA)
TONG JIAJIE (CN)
LI RONG (CN)
WANG JUN (CN)
TONG WEN (CA)
GE YIQUN (CA)
LIU XIAOCHENG (CN)
ZHANG GONGZHENG (CN)
WANG JIAN (CA)
CHENG NAN (CA)
ZHANG QIFAN (CA)
Application Number:
PCT/CN2017/101531
Publication Date:
March 22, 2018
Filing Date:
September 13, 2017
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H03M13/09
Domestic Patent References:
| WO2014092502A1 | 2014-06-19 | |||
| WO2014102565A1 | 2014-07-03 |
Foreign References:
| US20160204811A1 | 2016-07-14 | |||
| CN105811998A | 2016-07-27 | |||
| US20140173376A1 | 2014-06-19 |
Other References:
HUAWEI ET AL.: "Polar Code Construction for NR", 3GPP TSG RAN WG1 MEETING #86BIS R1-1608862, 10 October 2016 (2016-10-10), XP051148916
P. TRIFONOV ET AL.: "Polar Subcodes", IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, vol. 34, no. 2, February 2016 (2016-02-01)
T. WANG ET AL.: "Parity-Check-Concatenated Polar Codes", IEEE COMMUNICATIONS LETTERS, vol. 20, no. 12, December 2016 (2016-12-01), XP011636292, DOI: 10.1109/LCOMM.2016.2607169
See also references of EP 3510699A4
P. TRIFONOV ET AL.: "Polar Subcodes", IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, vol. 34, no. 2, February 2016 (2016-02-01)
T. WANG ET AL.: "Parity-Check-Concatenated Polar Codes", IEEE COMMUNICATIONS LETTERS, vol. 20, no. 12, December 2016 (2016-12-01), XP011636292, DOI: 10.1109/LCOMM.2016.2607169
See also references of EP 3510699A4
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