Patent ID: 11877274
Assignee: MARVELL ASIA PTE LTD
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. The communication device of claim 17, wherein the one or more IC devices are further configured to:
determine one or more third frequency subchannels within the first communication channel that are busy;
determine one or more fourth frequency subchannels within the second communication channel that are busy;
control the wireless network interface device to, in response to receiving the one or more first RTS frames, transmit one or more first clear-to-send (CTS) frames in the first communication channel, including i) not transmitting in any first frequency subchannels corresponding to first bits in the first bitmap set to the particular bit value and ii) not transmitting in any third frequency subchannels; and
control the wireless network interface device to, in response to receiving the one or more second RTS frames, transmit one or more second CTS frames in the second communication channel, including i) not transmitting in any second frequency subchannels corresponding to second bits in the second bitmap set to the particular bit value and ii) not transmitting in any fourth frequency subchannels;
control the wireless network interface device to transmit the one or more first CTS frames in the first communication channel simultaneously with transmitting the one or more second CTS frames in the second communication channel.