Enhancements for resource allocation in WLAN systems

A method performed by an access point (AP), the method comprising:

• transmitting a multi-user (MU) request to send (RTS) frame to a plurality of stations (STAs), the MU RTS frame comprising a duration field;
• receiving, from the plurality of STAs, simultaneous clear to send (CTS) frames in response to transmitting the MU RTS frame;
• transmitting, to the plurality of STAs, another frame comprising UL transmission information for transmission of data frames by the plurality of STAs, wherein the UL transmission information includes modulation and coding scheme (MCS) indicators and the UL transmission information indicates an allocation of frequency resources;
• receiving, from the plurality of STAs, the data frames, wherein a first data frame of the data frames is modulated in accordance with a first MCS indicator of the MCS indicators and is received using first resources of the allocated frequency resources;
• wherein a second data frame of the data frames is modulated in accordance with a second MCS indicator of the MCS indicators and is received using second resources of the allocated frequency resources;
• and
• transmitting an acknowledgement frame that acknowledges receipt of the data frames, to the plurality of STAs.

An access point (AP) comprising:

• a transmitter configured to transmit a multi-user (MU) request to send (RTS) frame to a plurality of stations (STAs), the MU RTS frame comprising a duration field;
• a receiver configured to receive, from the plurality of STAs, simultaneous clear to send (CTS) frames in response to transmitting the MU RTS frame;
• the transmitter configured to transmit, to the plurality of STAs, another frame comprising UL transmission information for transmission of data frames by the plurality of STAs, wherein the UL transmission information includes modulation and coding scheme (MCS) indicators and the UL transmission information indicates an allocation of frequency resources;
• the receiver configured to receive, from the plurality of STAs, the data frames, wherein a first data frame of the data frames is modulated in accordance with a first MCS indicator of the MCS indicators and is received using first resources of the allocated frequency resources;
• wherein a second data frame of the data frames is modulated in accordance with a second MCS indicator of the MCS indicators and is received using second resources of the allocated frequency resources;
• and
• the transmitter configured to transmit an acknowledgement frame that acknowledges receipt of the data frames, to the plurality of STAs.