US Patent No. 10,251,199

METHOD FOR TRANSMITTING FRAME IN WIRELESS LOCAL AREA NETWORK AND WIRELESS DEVICE USING THE SAME


Patent No. 10,251,199
Issue Date April 02, 2019
Title Method For Transmitting Frame In Wireless Local Area Network And Wireless Device Using The Same
Inventorship Suhwook Kim, Seoul (KR)
Kiseon Ryu, Seoul (KR)
Jeongki Kim, Seoul (KR)
Hangyu Cho, Seoul (KR)
Hyunhee Park, Seoul (KR)
Assignee LG ELECTRONICS INC., Seoul (KR)

Claim of US Patent No. 10,251,199

1. A method of transmitting a frame in a wireless local area network (WLAN), the method comprising:receiving, by a user station (STA), a multi user-request to send (MU-RTS) frame that solicits simultaneous clear-to-send (CTS) responses from one or more STAs from an access point (AP) via a first channel,
wherein the MU-RTS frame includes common information commonly allocated to the one or more STAs, user-specific information individually allocated to the one or more STAs, and control information informing whether use of a second channel is allowed for the one or more STA, and
wherein the second channel is non-contiguous to the first channel;
determining, by the user STA, whether the first channel and the second channel are in an idle state for a specific interval when the second channel is allocated to the STA based on the MU-RTS frame and the second channel is allowed according to the control information; and
transmitting, by the user STA, a CTS frame to the AP via the first channel and the second channel in response to the MU-RTS frame when it is determined that the first channel and the second channel are in the idle state for the specific interval.