Media access control for frequency division full duplex in WLAN

A first wireless communication device for frequency division, full duplex (FDFD) communication in a wireless local area network (WLAN), the first communication device comprising:

• a wireless network interface device comprising one or more integrated circuits (IC) devices configured to:
• receive a communication frame from a second wireless communication device, the communication frame including one or more indications of one or more FDFD parameters for an FDFD operation that includes FDFD communications via a first frequency segment and a second frequency segment, wherein the first frequency segment and the second frequency segment are separated by a gap in frequency, and wherein the one or more indications includes an indication of a physical layer (PHY) transmission mode that the first communication device is to use for communication in the second frequency segment during the FDFD operation,
• determine one or more FDFD parameters for the FDFD operation using the one or more indications of the one or more FDFD parameters in the communication frame, including using the indication of the PHY transmission mode to determine the PHY transmission mode that the first communication device is to use for communication in the second frequency segment during the FDFD operation, and
• control the wireless network interface device to participate in the FDFD operation, including controlling the wireless network interface device to transmit in the second frequency segment according to the PHY transmission mode.