US Patent No. 10,342,045

METHOD AND APPARATUS FOR TRANSMITTING DOWNLINK IN WIRELESS COMMUNICATION SYSTEM


Patent No. 10,342,045
Issue Date July 02, 2019
Title Method And Apparatus For Transmitting Downlink In Wireless Communication System
Inventorship Yongho Seok, Seoul (KR)
Assignee LG ELECTRONICS INC., Seoul (KR)

Claim of US Patent No. 10,342,045

1. A method for multi-user channel access in a wireless local area network (WLAN), the method comprising:transmitting, by an access point (AP), a multi-user request to send (MU RTS) frame to a first station (STA) and a second STA to simultaneously solicit uplink multi-user transmissions,
wherein the MU RTS frame includes:
first association identifier (AID) information for the first STA,
second AID information for the second STA,
first resource allocation information for a first uplink channel allocated to the first STA identified by the first AID information, and
second resource allocation information for a second uplink channel allocated to the second STA identified by the second AID information; and
simultaneously receiving, by the AP, a first clear to send (CTS) frame and a second CTS frame from the first STA and the second STA in response to the MU RTS frame,
wherein the first CTS frame is received via the first uplink channel based on the first resource allocation information, and
wherein the second CTS frame is received via the second uplink channel based on the second resource allocation information.