Method and apparatus for transmitting downlink in wireless communication system
First Claim
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, andsecond 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, andwherein the second CTS frame is received via the second uplink channel based on the second resource allocation information.
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Accused Products
Abstract
Disclosed are a method and an apparatus for transmitting a downlink in a wireless communication system. A method for transmitting the downlink in a WLAN comprises the steps of: an access point (AP) transmitting, to a plurality of stations (STA), each of a plurality of request to send (RTS) frames through each of a plurality of channels; and the AP receiving a clear to send (CTS) frame from at least one of the plurality of STAs through at least one channel from the plurality of channels, wherein each of the plurality of RTS frames may include channel information for indicating a channel to be used from among the plurality of channels when transmitting the downlink to each of the STAs, and identifier information for indicating the plurality of STAs.
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Citations
10 Claims
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1. A method for multi-user channel access in a wireless local area network (WLAN), the method comprising:
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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. - View Dependent Claims (2, 3, 4, 5)
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6. An access point (AP) transmitting a downlink for a plurality of stations (STAs) in a wireless local area network (WLAN), the AP comprising:
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a radio frequency (RF) unit configured to transmit and receive a radio signal; a processor configured to; transmit 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 receive 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. - View Dependent Claims (7, 8, 9, 10)
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Specification