Methods and apparatus for multiple user uplink

A method for wireless communication, comprising:

• receiving a trigger frame from an access point, the trigger frame being transmitted to the station and to at least another station, the trigger frame indicating an uplink transmission opportunity for the station to transmit a first uplink physical layer convergence protocol (PLCP) protocol data unit (PPDU) at a specific time and concurrently with the at least another station transmitting a second uplink PPDU, the trigger frame further comprising a duration field indicating a same duration of the first uplink PPDU and the second uplink PPDU;
• and
• transmitting the first uplink PPDU at the specific time and with the indicated duration to the access point concurrently with the at least another station transmitting the second uplink PPDU to the access point.

An apparatus for wireless communication comprising:

• means for receiving a trigger frame from an access point, the trigger frame being transmitted to the station and to at least another station, the trigger frame indicating an uplink transmission opportunity for the station to transmit a first uplink physical layer convergence protocol (PLCP) protocol data unit (PPDU) at a specific time and concurrently with the at least another station transmitting a second uplink PPDU, the trigger frame further comprising a duration field indicating a same duration of the first uplink PPDU and the second uplink PPDU;
• and
• means for transmitting the first uplink PPDU at the specific time and with the indicated duration to the access point concurrently with the at least another station transmitting the second uplink PPDU to the access point.

A non-transitory computer readable medium comprising instructions that when executed cause a processor to perform a method of:

• receiving a trigger frame from an access point, the trigger frame being transmitted to the station and to at least another station, the trigger frame indicating an uplink transmission opportunity for the station to transmit a first uplink physical layer convergence protocol (PLCP) protocol data unit (PPDU) at a specific time and concurrently with the at least another station transmitting a second uplink PPDU, the trigger frame further comprising a duration field indicating a same duration of the first uplink PPDU and the second uplink PPDU;
• and
• transmitting the first uplink PPDU at the specific time and with the indicated duration to the access point concurrently with the at least another station transmitting the second uplink PPDU to the access point.