Title:
BROADCAST CHANNEL ENHANCEMENT WITH POLAR CODE
Document Type and Number:
WIPO Patent Application WO/2018/127183
Kind Code:
A1
Abstract:
A method of new radio physical broadcast channel (NR-PBCH) bit mapping is proposed to improve for NR-PBCH decoding performance under Polar codes. NR-PBCH carries 32 information bits and 24 CRC bits. Specifically, NR-PBCH uses 512-bit Polar codes to carry total 56 data bits. Different Polar code bit channels have different channel reliability. As a general rule, the most reliable Polar code bit channels are used for the 56 data bits. In accordance with a novel aspect, within the 32 NR-PBCH information bits, some of the information bits that can be known to the decoders under certain conditions and therefore are placed at the least reliable Polar code bit positions. As a result, by mapping the NR-PBCH data bits properly at the input bit positions of Polar codes, the NR-PBCH decoding performance is improved when the known bits a priori can be exploited.
Inventors:
WU WEI-DE (CN)
TAI CHIA-WEI (CN)
CHEN TAO (CN)
LIU YEN-CHENG (CN)
LI XIU-SHENG (CN)
CHEN WEI-JEN (CN)
TAI CHIA-WEI (CN)
CHEN TAO (CN)
LIU YEN-CHENG (CN)
LI XIU-SHENG (CN)
CHEN WEI-JEN (CN)
Application Number:
PCT/CN2018/071792
Publication Date:
July 12, 2018
Filing Date:
January 08, 2018
Export Citation:
Assignee:
MEDIATEK INC (CN)
International Classes:
H03M13/00
Foreign References:
| US20170155405A1 | 2017-06-01 | |||
| CN103220001A | 2013-07-24 |
Other References:
MEDIATEK INC.: "PBCH Enhancement with Polar Code", 3GPP TSG RAN WG1, R1-1700169, 20 January 2017 (2017-01-20), XP051202676
MEDIATEK INC.: "Polar Code Design Features for Control Channels", 3GPP TSG RAN WG1, R1-1700168, 20 January 2017 (2017-01-20), XP051207710
MEDIATEK INC.: "Examination of NR Coding Candidates for Low-Rate Applications", 3GPP TSG RAN WGI MEETING #86, R1-167871, 26 August 2016 (2016-08-26), pages 3, XP051140848
MEDIATEK INC.: "Discussion on Polar Code Design and Performance", 3GPP TSG RAN WGI MEETING #85BIS, R1-165165, 27 May 2016 (2016-05-27), XP051089827
HUAWEI ET AL.: "Polar codes - encoding and decoding", 3GPP TSG RAN WG1, R1-164039, 27 May 2016 (2016-05-27), XP051090110
See also references of EP 3533144A4
MEDIATEK INC.: "Polar Code Design Features for Control Channels", 3GPP TSG RAN WG1, R1-1700168, 20 January 2017 (2017-01-20), XP051207710
MEDIATEK INC.: "Examination of NR Coding Candidates for Low-Rate Applications", 3GPP TSG RAN WGI MEETING #86, R1-167871, 26 August 2016 (2016-08-26), pages 3, XP051140848
MEDIATEK INC.: "Discussion on Polar Code Design and Performance", 3GPP TSG RAN WGI MEETING #85BIS, R1-165165, 27 May 2016 (2016-05-27), XP051089827
HUAWEI ET AL.: "Polar codes - encoding and decoding", 3GPP TSG RAN WG1, R1-164039, 27 May 2016 (2016-05-27), XP051090110
See also references of EP 3533144A4
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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