Receiver address field for mult-user transmissions in wlan systems

A method performed by a wireless device, comprising:

• processing a downlink frame that is eliciting a response from a plurality of stations, the downlink frame including a first address field;
• generating an uplink frame in response to the downlink frame, the uplink frame including a second address field, wherein the second address field is set to a value of the first address field when the downlink frame is of a first type, or a value of an address associated with an access point when the downlink frame is of a second type;
• and
• transmitting the uplink frame on a resource allocated by resource allocation information included in the downlink frame for an uplink multi-user transmission,
• wherein the plurality of stations simultaneously transmit uplink frames in response to the first type of downlink frame, wherein the plurality of stations simultaneously transmit uplink data frames.

A non-transitory machine readable medium that stores instruction, which when executed by a processor of a wireless device, cause the wireless device to:

• process a downlink frame that is eliciting a response from a plurality of stations, the downlink frame including a first address field;
• generate an uplink frame in response to the downlink frame, the uplink frame including a second address field, wherein the second address field is set to a value of the first address field when the downlink frame is of a first type, or a value of an address associated with an access point when the downlink frame is of a second type;
• and
• transmit the uplink frame on a resource allocated by resource allocation information included in the downlink frame for an uplink multi-user transmission,
• wherein the plurality of stations simultaneously transmit uplink frames in response to the first type of downlink frame, wherein the plurality of stations simultaneously transmit uplink data frames.

An access point, comprising:

• one or more memories;
• and
• one or more processors coupled to the one or more memories, the one or more processors configured to cause the access point to:
• transmit a downlink frame that is eliciting a response from a plurality of stations, the downlink frame including a first address field;
• receive an uplink frame in response to the downlink frame, the uplink frame including a second address field, wherein the second address field is set to a value of the first address field when the downlink frame is of a first type, or a value of an address associated with a station when the downlink frame is of a second type;
• and
• receive the uplink frame on a resource allocated by resource allocation information included in the downlink frame for an uplink multi-user transmission,
• wherein the access point simultaneously receives uplink frames in response to the first type of downlink frame, wherein the access point simultaneously receives uplink data frames.