Methods and apparatus for selecting enhanced distributed channel access parameters for different stations

An apparatus for wireless communication, comprising:

• a processing system configured to:
• select a first enhanced distributed channel access (EDCA) parameter for a first subset of stations of a plurality of stations, the first subset of stations having a first transmission capability for transmitting multi-user uplink transmissions,
• select a second EDCA parameter for a second subset of stations of the plurality of stations, the second subset of stations having a second transmission capability, the second transmission capability being different from the first transmission capability, wherein selecting the first EDCA parameter comprises setting a shorter transmission opportunity (TXOP) limit or a larger minimum contention window (CWmin) for the first subset of stations than the TXOP limit or CWmin for the second subset of stations based on the first subset of stations having the first transmission capability for transmitting multi-user uplink transmissions, and
• generate an information element including one of the first EDCA parameter and the second EDCA parameter;
• and
• a transmitter configured to transmit the information element.

A non-transitory computer-readable medium comprising code that, when executed, causes an apparatus to:

• select:
• a first enhanced distributed channel access (EDCA) parameter for a first subset of stations of a plurality of stations, the first subset of stations having a first transmission capability for transmitting multi-user uplink transmissions, and
• a second EDCA parameter for a second subset of stations of the plurality of stations, the second subset of stations having a second transmission capability, the second transmission capability being different from the first transmission capability,
• wherein selecting the first EDCA parameter comprises setting a shorter transmission opportunity (TXOP) limit or a larger minimum contention window (CWmin) for the first subset of stations than the TXOP limit or CWmin for the second subset of stations based on the first subset of stations having the first transmission capability for transmitting multi-user uplink transmissions;
• generate an information element including one of the first EDCA parameter and the second EDCA parameter;
• and
• transmit the information element.