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1. (WO2018222662) CO-EXISTENCE BETWEEN WIRELESS LOCAL AREA NETWORK (WLAN) DEVICES AND NEW RADIO (NR) DEVICES IN UNLICENSED SPECTRUM

Pub. No.:    WO/2018/222662    International Application No.:    PCT/US2018/035046
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Thu May 31 01:59:59 CEST 2018
IPC: H04W 74/08
H04W 88/08
H04W 84/12
Applicants: INTEL IP CORPORATION
STACEY, Robert J.
CAVALCANTI, Dave A.
RASHID, Mohammad Mamunur
Inventors: STACEY, Robert J.
CAVALCANTI, Dave A.
RASHID, Mohammad Mamunur
NIU, Huaning
CARIOU, Laurent
LI, Qinghua
Title: CO-EXISTENCE BETWEEN WIRELESS LOCAL AREA NETWORK (WLAN) DEVICES AND NEW RADIO (NR) DEVICES IN UNLICENSED SPECTRUM
Abstract:
Embodiments of a station (STA), an access point (AP) and methods of communication are generally described herein. The AP may select a back-off counter value to be used for contention-based access to a channel in unlicensed spectrum. The AP may monitor the channel to determine whether the channel is idle during a back-off period. A duration of the back-off period may be based on the back-off counter value. The AP may, if it is determined that the channel is idle during the back-οff period, transmit a co-existence reference signal (CRS) during a slot of an active collision resolution (ACR) period to indicate: that the AP determined that the channel was idle during the back-off period, and an intention of the AP to obtain exclusive access to the channel during a data transmission (DT) period after the ACR period.