GENERATION OF POLAR CODES WITH A VARIABLE BLOCK LENGTH UTILIZING PUNCTURING

Title:

GENERATION OF POLAR CODES WITH A VARIABLE BLOCK LENGTH UTILIZING PUNCTURING

Document Type and Number:

WIPO Patent Application WO/2017/128700

Kind Code:

A1

Abstract:

Polar codes may be generated with a variable block length utilizing puncturing. Some puncturing schemes consider punctured bits as unknown bits, and set the log likelihood ratio (LLR) for those bits to zero; while other puncturing schemes consider punctured bits as known bits, and set the LLR for those bits to infinity. Each of these puncturing schemes has been observed to provide benefits over the other under different circumstances, especially corresponding to different coding rates or different signal to noise ratio (SNR). According to aspects of the present disclosure, both puncturing schemes are compared, and the puncturing scheme resulting in the better performance is utilized for transmission.

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Inventors:

XU CHANGLONG (US)
LI JIAN (US)
HOU JILEI (US)
WANG NENG (US)

Application Number:

PCT/CN2016/095661

Publication Date:

August 03, 2017

Filing Date:

August 17, 2016

Export Citation:

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Assignee:

QUALCOMM INC (US)
XU CHANGLONG (CN)
LI JIAN (CN)
HOU JILEI (CN)
WANG NENG (CN)

International Classes:

H03M13/13

Domestic Patent References:

WO2015062107A1

2015-05-07

Foreign References:

CN105075163A	2015-11-18
CN103888151A	2014-06-25
US20150236715A1	2015-08-20
CN2016071959W	2016-01-25
US20150077277A1	2015-03-19

Other References: