Wireless communication device and wireless communication method
AssigneeKabushiki Kaisha Toshiba
InventorsToshihisa Nabetani, Ryoko Matsuo, Tomoko Adachi, Tsuguhide Aoki
Life of this patent
Estimating the term…
Abstract
According to one embodiment, a wireless communication device includes: a receiver configured to receive a plurality of first frames transmitted by spatial multiplexing; and a transmitter configured to transmit a second frame containing check results indicating whether the first frames are successfully received and first information specifying at least one communication device. The receiver is configured to receive a plurality of third frames transmitted by spatial multiplexing from a communication device having transmitted the first frame the check result of which represents failure and the communication device specified in the first information.
Claims23
A wireless communication device comprising:
- a receiver configured to receive a plurality of first frames transmitted by multiuser spatial multiplexing from a plurality of wireless communication devices wherein transmitter addresses of the first frames are different from each other;
- and
- a transmitter configured to transmit a second frame including a first field and a second field, the first field contains check results indicating whether the first frames are successfully received and the second field contains first information specifying at least one communication device of the plurality of wireless communication devices, wherein
- the receiver is configured to receive a plurality of third frames transmitted by multiuser spatial multiplexing in response to the second frame from a communication device for which the check result of the first frame have been a failure among the plurality of wireless communication devices and from the at least one communication device specified in the first information.
A wireless communication device corresponding to one of a plurality of wireless communication devices comprising:
- a transmitter configured to transmit a first frame;
- a receiver configured to receive a third frame including a first field and a second field, the first field contains check results indicating whether the first frame and a second frame are successfully received, and the second field contains first information specifying at least one communication device, wherein the second frame is transmitted from a first wireless communication device of the plurality of wireless communication devices by multiuser spatial multiplexing with the first frame, and a transmitter address of the second frame is different from a transmitter address of the first frame;
- and
- the transmitter is configured to transmit a fourth frame in at least one of a case where the check result for the first frame is a failure or a case where the wireless communication device is specified in the first information, wherein
- the transmitter transmits the fourth frame by multiuser spatial multiplexing with at least one of a fifth frame or a sixth frame, the fifth frame being transmitted by a second communication device of the plurality of wireless communication devices, the second communication device is specified in the first information, and the sixth frame being transmitted by the first communication device for which the check result of the second frame has been a failure, and
- transmitter addresses of the fourth frame, the fifth frame, and the sixth frame are different from each other.
A wireless communication method comprising:
- receiving a plurality of first frames transmitted by multiuser spatial multiplexing from a plurality of communication devices wherein transmitter addresses of the first frames are different from each other;
- transmitting a second frame including a first field and a second field, the first field contains check results indicating whether the first frames are successfully received and the second field contains first information specifying at least one communication device of the plurality of wireless communication devices;
- and
- receiving a plurality of third frames transmitted by multiuser spatial multiplexing in response to the second frame from a communication device for which the check result of the first frame has been a failure among the plurality of communication devices and from the at least one communication device specified in the first information.
Dependencies are inferred from the claim text.