US Patent No. 10,194,468

WIRELESS CHANNEL RESERVATION


Patent No. 10,194,468
Issue Date January 29, 2019
Title Wireless Channel Reservation
Inventorship Jarkko Kneckt, Campbell, CA (US)
Guoqing Li, Campbell, CA (US)
Christiaan A. Hartman, San Jose, CA (US)
Joonsuk Kim, Saratoga, CA (US)
Assignee Apple Inc., Cupertino, CA (US)

Claim of US Patent No. 10,194,468

1. A method, by a wireless local area network (WLAN) access point (AP), the method comprising:setting a first duration value in a first duration field of a first multi-user request to send (MU-RTS) frame, wherein the first duration value is based on a clear to send (CTS) timeout value;
setting a second duration value in a second duration field of the first MU-RTS frame, wherein the second duration value is based on a remaining transmission opportunity (TXOP) duration;
addressing the first MU-RTS frame, at least in part, to a first WLAN station (STA);
setting the first duration value in the first duration field of a second MU-RTS frame;
addressing the second MU-RTS frame, at least in part, to a second STA; and
transmitting the first and second MU-RTS frames at a first time.