Method for uplink multiuser data transmission and system for uplink multiuser multiple input multiple output

An apparatus comprising a processor, when a program is executed by the processor, cause the apparatus to:

• send a second request to an access point for uplink data transmission,
• wherein the second request comprises a sequence identifying the apparatus as a station among multiple stations sending the second request for uplink data transmission, and
• wherein the sequence identifying the apparatus is a long training field (LTF) section;
• send a buffer message to the access point, wherein the buffer message indicates an amount of to-be-sent data at the apparatus;
• and
• perform the uplink data transmission with the access point in response to selection of the apparatus for the uplink data transmission based on the amount of to-be-sent data indicated by the buffer message.

A non-transitory computer readable storage medium comprising a program, when the program is executed by a computer, cause the computer to:

• receive one or more second requests for transmitting data from one or more of multiple stations,
• wherein each of the one or more second requests comprisies a first sequence identifying a first station among the multiple stations, and a second sequence identifying a second station among the multiple stations, and
• wherein the first sequence is a first long training field (LTF) section which identifies the first station, the second sequence is a second LTF section which identifies the second station;
• receive a buffer message from each of the one or more multiple stations, wherein the buffer message indicates an amount of to-be-sent data at an associated station;
• select buffer messages whose indication of to-be-sent data reaches a threshold, wherein reaching the threshold indicates a station associated with the buffer message needs to perform an uplink data transmission;
• and
• determine one or more stations from the one or more multiple stations for uplink data transmission according to the (i) sequence in one of the one or more second requests and (ii) the selected buffer messages.

A non-transitory computer readable storage medium comprising a program, when the program is executed by a computer, cause the computer to:

• send a second request to an access point for uplink data transmission,
• wherein the second request comprises a sequence identifying a first station as a station among multiple stations sending the second request for uplink data transmission, and
• wherein the sequence identifying the apparatus is a long training field (LTF) section;
• send a buffer message to the access point, wherein the buffer message indicates an amount of to-be-sent data at the first station;
• and
• perform the uplink data transmission with the access point in response to selection of the first station for the uplink data transmission based on the amount of to-be-sent data indicated by the buffer message.