Title:
POLAR CODING TECHNIQUES FOR BLIND DETECTION OF DIFFERENT PAYLOAD SIZES
Document Type and Number:
WIPO Patent Application WO/2019/095853
Kind Code:
A1
Abstract:
Methods, systems, and devices for wireless communications are described. In some systems, wireless devices may encode and decode transmissions using polar codes. A transmitting device may encode a payload based on a selected payload size. For example, the transmitting device may construct a bit vector including payload bits, parity bits, frozen bits, or some combination of these, and may modify the bits or the order of the bits based on the selected payload size. The device may generate a polar-encoded codeword based on this bit vector, and may transmit the polar-encoded codeword to a receiving device. The receiving device may blind decode the polar-encoded codeword, and may determine the correct payload size based on the decoded bit vector. For example, the device may perform decoding or may check decoded bits based on a payload size hypothesis, where the decoding may fail for any incorrect payload size hypothesis.
Inventors:
CHEN KAI (US)
XU CHANGLONG (US)
JIANG JING (US)
SARKIS GABI (US)
XU HAO (US)
XU CHANGLONG (US)
JIANG JING (US)
SARKIS GABI (US)
XU HAO (US)
Application Number:
PCT/CN2018/107179
Publication Date:
May 23, 2019
Filing Date:
September 24, 2018
Export Citation:
Assignee:
QUALCOMM INC (US)
CHEN KAI (CN)
XU CHANGLONG (CN)
JIANG JING (US)
SARKIS GABI (US)
XU HAO (CN)
CHEN KAI (CN)
XU CHANGLONG (CN)
JIANG JING (US)
SARKIS GABI (US)
XU HAO (CN)
International Classes:
H03M13/09; H04L1/00
Domestic Patent References:
| WO2017117489A1 | 2017-07-06 |
Foreign References:
| US20160013810A1 | 2016-01-14 | |||
| EP2360866A1 | 2011-08-24 |
Other References:
INTEL: "Considerations in Polar code design", 3GPP TSG RAN WG1 AD HOC R1-1700385, vol. RAN WG1, 16 January 2017 (2017-01-16) - 20 January 2017 (2017-01-20), XP051207922
QUALCOMM INCORPORATED: "Consideration of UE ID scrambling for DCI", 3GPP TSG-RAN WG1 #90-BIS R1-1718586, vol. RAN WG1, 8 October 2017 (2017-10-08) - 13 October 2017 (2017-10-13), XP051341764
SPREADTRUM COMMUNICATIONS: "RNTI scrambling for PDCCH Polar code", 3GPP TSG RAN WG1 MEETING 90BIS RL-1717752, vol. RAN WG1, 9 October 2017 (2017-10-09) - 13 October 2017 (2017-10-13), XP051340937
COHERENT LOGIX INC.: "Scrambling Sequence Design for Early Block Discrimination on DCI Blind Detection", 3GPP TSG RAN WG1-NR #2, R1-1711571, QINGDAO, CN, 27 June 2017 (2017-06-27)
MOTION, UK LIMITED: "CSI Reporting During SCell Activation/Deactivation", 3GPP TSG RAN WG1 #65, RI-M664, BARCELONA, SPAIN
QUALCOMM INCORPORATED: "Consideration of UE ID scrambling for DCI", 3GPP TSG-RAN WG1 #90-BIS R1-1718586, vol. RAN WG1, 8 October 2017 (2017-10-08) - 13 October 2017 (2017-10-13), XP051341764
SPREADTRUM COMMUNICATIONS: "RNTI scrambling for PDCCH Polar code", 3GPP TSG RAN WG1 MEETING 90BIS RL-1717752, vol. RAN WG1, 9 October 2017 (2017-10-09) - 13 October 2017 (2017-10-13), XP051340937
COHERENT LOGIX INC.: "Scrambling Sequence Design for Early Block Discrimination on DCI Blind Detection", 3GPP TSG RAN WG1-NR #2, R1-1711571, QINGDAO, CN, 27 June 2017 (2017-06-27)
MOTION, UK LIMITED: "CSI Reporting During SCell Activation/Deactivation", 3GPP TSG RAN WG1 #65, RI-M664, BARCELONA, SPAIN
Attorney, Agent or Firm:
NTD PATENT & TRADEMARK AGENCY LIMITED (CN)
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