WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD
First Claim
Patent Images
1. A wireless communication device comprising:
- controlling circuitry configured to change a value of a first parameter in accordance with a history of uplink multi-user transmission or whether capability of uplink multi-user transmission is in an enabled or disabled state, the first parameter defining an upper limit of duration during which a wireless medium is allowed to be occupied; and
a transmitter configured to transmit a first frame.
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Abstract
According to one embodiment, a wireless communication device includes: controlling circuitry configured to change a value of a first parameter in accordance with a history of uplink multi-user transmission or whether capability of uplink multi-user transmission is in an enabled or disabled state, the first parameter defining an upper limit of duration during which a wireless medium is allowed to be occupied; and a transmitter configured to transmit a first frame.
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Citations
20 Claims
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1. A wireless communication device comprising:
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controlling circuitry configured to change a value of a first parameter in accordance with a history of uplink multi-user transmission or whether capability of uplink multi-user transmission is in an enabled or disabled state, the first parameter defining an upper limit of duration during which a wireless medium is allowed to be occupied; and a transmitter configured to transmit a first frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A wireless communication device comprising:
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a transmitter configured to transmit a first frame instructing uplink multi-user transmission; a receiver configured to receive a plurality of second frames transmitted by the uplink multi-user transmission; and controlling circuitry configured to determine a value of a first parameter defining an upper limit of duration during which the wireless medium is allowed to be occupied, for at least one transmission source of the second frames, the value of the first parameter being determined in accordance with a history of the uplink multi-user transmission by the at least one transmission source or a state of whether capability of uplink multi-user transmission of the at least one transmission source is enabled or disabled, and wherein the transmitter is configured to transmit a third frame including information depending on the value of the first parameter. - View Dependent Claims (17, 19)
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18. A wireless communication device comprising:
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a receiver configured to receive a first frame instructing uplink multi-user transmission; and a transmitter configured to transmit a second frame in response to the first frame; and controlling circuitry configured to perform a first carrier sensing on a wireless medium for a first duration to acquire an access right for transmission of the second frame or a third frame, stop the first carrier sensing in response to the first frame being received while the first carrier sensing is performed, and perform a second carrier sensing to acquire an access right for transmission of the third frame after the second frame is transmitted, wherein a length of duration during which the second carrier sensing is performed has a value obtained by subtracting a length of duration during which the first carrier sensing is performed after start of the first duration and prior to reception of the first frame from a length of the first duration.
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20. A wireless communication method comprising:
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changing a value of a first parameter in accordance with a history of uplink multi-user transmission or whether capability of uplink multi-user transmission is in an enabled or disabled state, the first parameter defining an upper limit of a time during which a wireless medium is allowed to be occupied; and transmitting a first frame.
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Specification