Title:
METHOD AND DEVICE FOR INCREMENTAL REDUNDANCY HYBRID AUTOMATIC REPEAT REQUEST (IR-HARQ) RE-TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2018/072691
Kind Code:
A1
Abstract:
Aspects of this disclosure provide a technique for implementing polar encoding with incremental redundancy HARQ re-transmission. In particular, a transmitter may encode a message using different polar codes to obtain a first codeword and a second codeword that is twice the length of the first codeword, and transmit the first codeword as an original transmission, and the second half of the second codeword as a re-transmission without transmitting the first half of the second codeword. Information bits that are common to both the first codeword and the second half of the second codeword may be mapped to more-reliable bit-locations in the second half of the second codeword. Decoded bit values for the common information in the original transmission and retransmission may be compared by the receiver to perform a parity check.
Inventors:
ZHANG GONGZHENG (CN)
ZHANG HUAZI (CN)
LI RONG (CN)
WANG JUN (CN)
GE YIQUN (CA)
TONG WEN (CA)
ZHANG HUAZI (CN)
LI RONG (CN)
WANG JUN (CN)
GE YIQUN (CA)
TONG WEN (CA)
Application Number:
PCT/CN2017/106560
Publication Date:
April 26, 2018
Filing Date:
October 17, 2017
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L1/00
Domestic Patent References:
| WO2015139316A1 | 2015-09-24 |
Foreign References:
| CN106027068A | 2016-10-12 | |||
| CN105743621A | 2016-07-06 | |||
| CN101621365A | 2010-01-06 | |||
| US20150358113A1 | 2015-12-10 |
Other References:
EL-KHAMY MOSTAFA ET AL.: "HARQ Rate-Compatible Polar Codes for Wireless Channels", GLOBAL COMMUNICATIONS CONFERENCE, 31 December 2015 (2015-12-31), XP055397700
S.R.TAVILDAR, A H-ARQ SCHEME FOR POLAR CODES, 2016
HONG ET AL., CAPACITY-ACHIEVING RATE-COMPATIBLE POLAR CODES
SABER ET AL., AN INCREMENTAL REDUNDANCY HYBRID ARQ SCHEME VIA PUNCTURING AND EXTENDING OF POLAR CODES
3GPP TSG RAN WG 1 MEETING #87, R1-1611255
See also references of EP 3520266A4
S.R.TAVILDAR, A H-ARQ SCHEME FOR POLAR CODES, 2016
HONG ET AL., CAPACITY-ACHIEVING RATE-COMPATIBLE POLAR CODES
SABER ET AL., AN INCREMENTAL REDUNDANCY HYBRID ARQ SCHEME VIA PUNCTURING AND EXTENDING OF POLAR CODES
3GPP TSG RAN WG 1 MEETING #87, R1-1611255
See also references of EP 3520266A4
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