Wireless communication device and wireless communication method

1. A wireless communication device, comprising:

a transmitter configured to transmit a first frame that contains first

information specifying a plurality of frequency components and does not include second information specifying other wireless communication devices to which the plurality of frequency components are allocated;

a receiver configured to simultaneously receive second frames transmitted

by transmitting devices via frequency components randomly selected from among the plurality of frequency components specified in the first information, wherein the transmitting devices transmitting the second frames are ones of the other wireless communication devices and are different from each other; and

controlling circuitry configured to allocate first frequency components

selected from among the plurality of frequency components based on third information to the transmitting devices transmitting the second frames, wherein the first frequency components are different from each other,

wherein the receiver is further configured to receive the third information

through the second frames or third frames transmitted before the second frames are transmitted, and

wherein the third information contains communication quality information

on a second frequency component selected from among the plurality of frequency components, and communication quality information on an entire frequency band to which the plurality of frequency components belong.

2. The wireless communication device according to claim 1 ,

wherein the third information contains a request for allocating the second

frequency component selected from among the plurality of frequency components, and

the controlling circuitry is configured to allocate the first frequency

component based on the request for allocating.

3. The wireless communication device according to claim 1 ,

wherein the third information contains a request for allocating the second

frequency component selected from among the plurality of frequency components, and

when the requests for allocating in a same frequency component exist, the

controlling circuitry is configured to allocate the same frequency component to the other wireless communication device from which the second frame has been received via the same frequency component.

4. The wireless communication device according to claim 1 ,

wherein the first frame contains information specifying a number of the plurality of frequency components specified by the first information.

5. The wireless communication device according to claim 1 , further comprising at least one antenna.

6. A wireless communication device, comprising:

a transmitter configured to transmit a first frame that contains first

information specifying a plurality of frequency components and does not include second information specifying other wireless communication devices to which the plurality of frequency components are allocated;

a receiver configured to simultaneously receive second frames transmitted

by transmitting devices via frequency components randomly selected from among the plurality of frequency components specified in the first information, wherein the transmitting devices transmitting the second frames are ones of the other wireless communication devices and are different from each other; and

controlling circuitry configured to allocate first frequency components

selected from among the plurality of frequency components based on third information to the transmitting devices transmitting the second frames, wherein the first frequency components are different from each other,

wherein the receiver is further configured to receive the third information

through the second frames or third frames transmitted before the second frames are transmitted, and

wherein the third information contains communication quality information

on a second frequency component selected from among the plurality of frequency components, and communication quality information on the frequency component via which the second frame has been transmitted.

7. The wireless communication device according to claim 6 ,

wherein the third information contains communication quality information

on an entire frequency band to which the plurality of frequency components belong.

8. A wireless communication device, comprising:

a transmitter configured to transmit a first frame that contains first

information specifying a plurality of frequency components and does not include second information specifying other wireless communication devices to which the plurality of frequency components are allocated;

a receiver configured to simultaneously receive second frames transmitted

by transmitting devices via frequency components randomly selected from among the plurality of frequency components specified in the first information, wherein the transmitting devices transmitting the second frames are ones of the other wireless communication devices and are different from each other; and

controlling circuitry configured to allocate first frequency components

selected from among the plurality of frequency components based on third information to the transmitting devices transmitting the second frames, wherein the first frequency components are different from each other,

wherein the receiver is further configured to receive the third information

through the second frames or third frames transmitted before the second frames are transmitted, and

wherein the third information contains evaluation information between a

communication quality of a second frequency component selected from among the plurality of frequency components and communication qualities of frequency components other than the second frequency component among the plurality of frequency components.

9. A wireless communication device, comprising:

a transmitter configured to transmit a first frame that contains first

information specifying a plurality of frequency components and does not include second information specifying other wireless communication devices to which the plurality of frequency components are allocated;

a receiver configured to simultaneously receive second frames transmitted

by transmitting devices via frequency components randomly selected from among the plurality of frequency components specified in the first information, wherein the transmitting devices transmitting the second frames are ones of the other wireless communication devices and are different from each other; and

controlling circuitry configured to allocate first frequency components

selected from among the plurality of frequency components based on third information to the transmitting devices transmitting the second frames, wherein the first frequency components are different from each other,

wherein the receiver is further configured to receive the third information

through the second frames or third frames transmitted before the second frames are transmitted,

wherein the third information contains a request for allocating a second

frequency component selected from among the plurality of frequency components,

wherein the second frequency component is a frequency component having

a highest communication quality at the transmitting device among the plurality of frequency components at a transmitting device requesting the second frequency component, and

the controlling circuitry is configured to allocate the second frequency

component based on the request for allocating.

10. A wireless communication device, comprising:

a transmitter configured to transmit a first frame that contains first

information specifying a plurality of frequency components and does not include second information specifying other wireless communication devices to which the plurality of frequency components are allocated;

a receiver configured to simultaneously receive second frames transmitted

by transmitting devices via frequency components randomly selected from among the plurality of frequency components specified in the first information, wherein the transmitting devices transmitting the second frames are ones of the other wireless communication devices and are different from each other; and

controlling circuitry configured to allocate first frequency components

selected from among the plurality of frequency components based on third information to the transmitting devices transmitting the second frames, wherein the first frequency components are different from each other,

wherein the receiver is further configured to receive the third information

through the second frames or third frames transmitted before the second frames are transmitted, and

wherein the third information contains difference information between a

communication quality of an entire frequency band to which the plurality of frequency components belong and each of communication qualities of the plurality of frequency components.

11. A wireless communication device, comprising:

a transmitter configured to transmit a first frame that contains first

information specifying a plurality of frequency components and does not include second information specifying other wireless communication devices to which the plurality of frequency components are allocated;

a receiver configured to simultaneously receive second frames transmitted

by transmitting devices via frequency components randomly selected from among the plurality of frequency components specified in the first information, wherein the transmitting devices transmitting the second frames are ones of the other wireless communication devices and are different from each other; and

controlling circuitry configured to allocate first frequency components

selected from among the plurality of frequency components based on third information to the transmitting devices transmitting the second frames, wherein the first frequency components are different from each other,

wherein the receiver is further configured to receive the third information

through the second frames or third frames transmitted before the second frames are transmitted,

wherein the third information contains a request for allocating a second

frequency component selected from among the plurality of frequency components, and

when the requests for allocating a same frequency component exist, the

controlling circuitry is configured to allocate the same frequency component to the other wireless communication device on which communication quality of the same frequency component is lowest or lower than a threshold.

12. A wireless communication device, comprising:

a transmitter configured to transmit a first frame that contains first

information specifying a plurality of frequency components and does not include second information specifying other wireless communication devices to which the plurality of frequency components are allocated;

a receiver configured to simultaneously receive second frames transmitted

by transmitting devices via frequency components randomly selected from among the plurality of frequency components specified in the first information, wherein the transmitting devices transmitting the second frames are ones of the other wireless communication devices and are different from each other; and

controlling circuitry configured to allocate first frequency components

selected from among the plurality of frequency components based on third information to the transmitting devices transmitting the second frames, wherein the first frequency components are different from each other,

wherein the receiver is further configured to receive the third information

through the second frames or third frames transmitted before the second frames are transmitted,

wherein the controlling circuitry is configured to receive fourth information

specifying a transmission data size of the other wireless communication device, through the second frame or the third frame, and

allocate the first frequency component based on the fourth information.

13. A wireless communication device, comprising:

a transmitter configured to transmit a first frame that contains first

information specifying a plurality of frequency components and does not include second information specifying other wireless communication devices to which the plurality of frequency components are allocated;

a receiver configured to simultaneously receive second frames transmitted

by transmitting devices via frequency components randomly selected from among the plurality of frequency components specified in the first information, wherein the transmitting devices transmitting the second frames are ones of the other wireless communication devices and are different from each other; and

controlling circuitry configured to allocate first frequency components

selected from among the plurality of frequency components based on third information to the transmitting devices transmitting the second frames, wherein the first frequency components are different from each other,

wherein the receiver is further configured to receive the third information

through the second frames or third frames transmitted before the second frames are transmitted, and

wherein the first frame contains information specifying a transmission rate

applied for transmission of the second frame.