Mu-mimo dynamic bandwidth selection

A wireless device comprising:

• one or more processors;
• and
• a memory configured to store instructions that, when executed by the one or more processors, cause the wireless device to select a bandwidth for multi-user multiple-input multiple-output (MU-MIMO) communications by:
• determining, during a medium access contention operation, whether one or more bandwidths are available;
• transmitting, during a transmit opportunity (TXOP), a clear-to-send-to-self (CTS2S) frame on the bandwidth determined to be available;
• selecting the bandwidth for the MU-MIMO communications based on the bandwidth used to transmit the CTS2S frames;
• and
• initiating the MU-MIMO communications using the selected bandwidth.

A non-transitory computer-readable storage medium storing instructions that, when executed by one or more processors of a wireless device, cause the wireless device to select a bandwidth for multi-user multiple-input multiple-output (MU-MIMO) communications by performing operations comprising:

• determining, during a medium access contention operation, whether one or more bandwidths are available;
• transmitting, during a transmit opportunity (TXOP), a clear-to-send-to-self (CTS2S) frame on the bandwidth determined to be available;
• selecting the bandwidth for the MU-MIMO communications based on the bandwidth used to transmit the CTS2S frames;
• and
• initiating the MU-MIMO communications using the selected bandwidth.

A wireless device for selecting a bandwidth for multi-user multiple-input multiple-output (MU-MIMO) communications, the wireless device comprising:

• means for determining, during a medium access contention operation, whether one or more bandwidths are available;
• means for transmitting, during a transmit opportunity (TXOP), a clear-to-send-to-self (CTS2S) frame on the bandwidth determined to be available;
• means for selecting the bandwidth for the MU-MIMO communications based on the bandwidth used to transmit the CTS2S frames;
• and
• means for initiating the MU-MIMO communications using the selected bandwidth.