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1. (WO2018161801) CHANNEL ACCESS METHOD AND DEVICE

Pub. No.:    WO/2018/161801    International Application No.:    PCT/CN2018/077005
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Sat Feb 24 00:59:59 CET 2018
IPC: H04W 72/04
H04W 72/12
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: HUANG, Lei
黄磊
LIN, Yingpei
林英沛
ZHANG, Jiayin
张佳胤
Title: CHANNEL ACCESS METHOD AND DEVICE
Abstract:
The invention provides a channel access method comprising: a network element executing random backoff listen-before-talk (LBT) before performing channel preemption, and upon a successful preemption, performing signal transmission in a first transmission time interval (TTI) in a maximum channel occupancy time (MCOT); and before another TTI in the MCOT, the network element executing non-random backoff LBT to perform channel preemption, so as to satisfy an LBT requirement for a high-frequency unlicensed frequency band and to ensure inter-system coexistence and performance.