CYCLIC PREFIX (CP) EXTENSION IN CHANNEL OCCUPANCY TIME (COT) SHARING FOR SIDELINK COMMUNICATION

WIPO Patent Application WO/2021/208031

A1

Wireless communications systems and methods related to use of cyclic prefix (CP) extensions for channel occupancy time (COT) sharing among sidelink user equipment devices (UEs) are provided. A first UE detects a first sidelink transmission in a COT, the COT for sharing with multiple sidelink UEs including the first sidelink UE. The first UE may determine a CP extension length for transmitting a second sidelink transmission after the first sidelink transmission, where a gap duration between the first sidelink transmission and the second sidelink transmission satisfies a listen-before-talk (LBT) gap time threshold. The first UE may apply a CP extension having the CP extension length to the second sidelink transmission and transmit, to a second sidelink UE, the second sidelink transmission with the CP extension.

SUN JING (US)
ZHANG XIAOXIA (US)
XU CHANGLONG (US)
LIU CHIH-HAO (US)
OZTURK OZCAN (US)
XUE YISHENG (US)

PCT/CN2020/085166

October 21, 2021

April 16, 2020

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QUALCOMM INC (US)
SUN JING (US)
ZHANG XIAOXIA (US)
XU CHANGLONG (CN)
LIU CHIH HAO (US)
OZTURK OZCAN (US)
XUE YISHENG (US)

H04L1/18

CN104205966A	2014-12-10
CN109845209A	2019-06-04
US20190335501A1	2019-10-31

OPPO: "Channel access procedures for NR-U", 3GPP DRAFT; R1-1912506, vol. RAN WG1, 9 November 2019 (2019-11-09), Reno, USA, pages 1 - 9, XP051823446
HUAWEI; HISILICON: "Sidelink physical layer structure for NR V2X", 3GPP DRAFT; R1-1812206, vol. RAN WG1, 3 November 2018 (2018-11-03), Spokane, USA, pages 1 - 12, XP051478362
See also references of EP 4136792A4

NTD PATENT & TRADEMARK AGENCY LTD. (CN)

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