Communication method and communication device

A communication method for a second communication device, the communication method comprising:

• receiving a beacon that is transmitted from a coordinator communication device and that includes a first scheduling element to be used by at least one first communication device and a second scheduling element to be used by at least one second communication device;
• generating a first virtual allocation in a case where a duplicate of a second allocation is included in the second scheduling element;
• adding the first virtual allocation to the second scheduling element;
• and
• transmitting the second scheduling element to which the first virtual allocation is added and the first scheduling element to the at least one first communication device and to another second communication device other than the second communication device, wherein
• the first scheduling element includes a first allocation that indicates a time-frequency resource allocated to the at least one first communication device,
• the second scheduling element includes the second allocation that indicates a time-frequency resource allocated to the at least one second communication device,
• the at least one first communication device performs communication in accordance with a first communication system using a first frequency band,
• the at least one second communication device performs communication in accordance with the first communication system or a second communication system using a second frequency band that includes the first frequency band, and
• the coordinator communication device allocates time-frequency resources to the first communication device and the second communication device.

A communication device comprising:

• a generator that generates a first scheduling element to be used by at least one first communication device and a second scheduling element to be used by at least one second communication device;
• and
• a transmitter that transmits the first scheduling element and the second scheduling element to the at least one first communication device and to the at least one second communication device, wherein
• the second scheduling element includes at least one second allocation that indicates a time-frequency resource allocated to the at least one second communication device,
• the first scheduling element includes at least one first allocation that indicates a time-frequency resource allocated to the at least one first communication device and optionally includes at least one first virtual allocation that is a duplicate of the at least one second allocation,
• the at least one first communication device performs communication in accordance with a first communication system using a first frequency band, and
• the at least one second communication device performs communication in accordance with the first communication system or a second communication system using a second frequency band that includes the first frequency band.

A communication device comprising:

• a receiver that receives a beacon that is transmitted from a coordinator communication device and that includes a first scheduling element to be used by at least one first communication device and a second scheduling element to be used by at least one second communication device;
• a generator that generates a first virtual allocation in a case where a duplicate of a second allocation is included in the second scheduling element, and generates the second scheduling element obtained by adding the first virtual allocation to the second scheduling element;
• and
• a transmitter that transmits, to the at least one first communication device and to a second communication device other than the communication device, the first scheduling element and the second scheduling element to which the first virtual allocation is added, wherein
• the first scheduling element includes a first allocation that indicates a time-frequency resource allocated to the at least one first communication device,
• the second scheduling element includes the second allocation that indicates a time-frequency resource allocated to the at least one second communication device,
• the at least one first communication device performs communication in accordance with a first communication system using a first frequency band,
• the at least one second communication device performs communication in accordance with the first communication system or a second communication system using a second frequency band that includes the first frequency band, and
• the coordinator communication device allocates time-frequency resources to the first communication device and the second communication device.