Wireless communication device and wireless communication method for controlling transmission timing based on communication quality
AssigneeKabushiki Kaisha Toshiba
InventorToshihisa Nabetani
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Abstract
According to one embodiment, a wireless communication device includes: a transmitter configured to transmit a first frame, the first frame being a frame for channel estimation; a receiver configured to receive a second frame, the second frame including channel information; and controlling circuitry. The transmitter is configured to transmit a third frame by beamforming based on the channel information. The controlling circuitry is configured to measure a communication quality of a channel based on a response frame to the third frame and control a transmission timing of the first frame based on the communication quality and a transmission rate of the third frame.
Claims18
A wireless communication device comprising:
- a transmitter configured to transmit a first frame for channel estimation via a channel;
- a receiver configured to receive a second frame in response to the first frame, wherein the second frame includes channel information indicative of a state of the channel;
- and
- controlling circuitry,
- wherein the transmitter is configured to transmit a third frame by beamforming based on the channel information at a transmission rate;
- the receiver is configured to receive a fourth frame to specify a communication quality of the channel in response to the third frame;
- the controlling circuitry is configured to specify the communication quality based on the fourth frame and control a transmission timing of a next first frame based on the communication quality and the transmission rate used for transmission of the third frame.
A wireless communication method comprising:
- transmitting a first frame for channel estimation via a channel;
- receiving a second frame in response to the first frame, wherein the second frame includes channel information indicative of a state of the channel;
- transmitting a third frame by beamforming based on the channel information at a transmission rate;
- receiving a fourth frame to specify a communication quality of the channel in response to the third frame;
- specifying the communication quality based on the fourth frame;
- and
- controlling a transmission timing of a next first frame based on the communication quality and the transmission rate used for transmission of the third frame.
Dependencies are inferred from the claim text.