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US 11,700,158 B2Granted
Wireless communication device and wireless communication method for providing opportunity of fair transmission to terminals
AssigneeInternational Semiconductor Group
InventorsTomoko Adachi, Ryoko Matsuo
Life of this patent
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Abstract
According to one embodiment, a wireless communication device includes a transmitter configured to transmit a first frame including information to specify a plurality of frequency components; and controlling circuitry configured to determine whether a second frame is received via each of the plurality of frequency components. The transmitter is configured to transmit a third frame including first information concerning a first value range which is used to determine whether to respond to the first frame, the first value range being dependent on a number of frequency components via which the second frame has been received.
Claims15
A wireless communication device comprising:
- a receiver configured to receive a first type of frame including at least one first field to specify a plurality of frequency components for UL-OFDMA (Uplink Orthogonal Frequency Division Multiple Access) random access;
- controlling circuitry configured to determine a number of the plurality of frequency components based on the at least one first field and determine whether to respond to the first type of frame, based on a first value selected randomly from a first value range and the number of the plurality of frequency components for the UL-OFDMA random access;
- and
- a transmitter configured to, in response to determining to respond to the first type of frame, select one frequency component from the plurality of frequency components for the UL-OFDMA random access and transmit a second type of frame for response to the first type of frame using the selected frequency component, wherein
- the controlling circuitry is configured to determine whether transmission of the second type of frame has succeeded or failed, and adjust the first value range based on a result of determining whether transmission of the second type of frame has succeeded or failed,
- the first type of frame includes second information designating a certain terminal to transmit the second type of frame using a second frequency component different from the plurality of frequency components for the UL-OFDMA random access,
- the controlling circuitry is configured to
- determine whether the wireless communication device is designated in the second information as the certain terminal,
- in response to determining that the wireless communication device is not designated in the second information as the certain terminal, determine whether to respond to the first type of frame based on the first value and the number of the plurality of frequency components for the UL-OFDMA random access, and
- in response to determining that the wireless communication device is designated in the second information as the certain terminal, not determine whether to respond to the first type of frame based on the first value and the number of the plurality of frequency components for the UL-OFDMA random access, and
- the transmitter is configured to
- in response to determining that the wireless communication device is designated in the second information as the certain terminal, transmit the second type of frame using the second frequency component.
9 more elements
A wireless communication method comprising:
- receiving a first type of frame including at least one first field to specify a plurality of frequency components for UL-OFDMA (Uplink Orthogonal Frequency Division Multiple Access) random access;
- determining a number of the plurality of frequency components for the UL-OFDMA random access based on the at least one first field and determining whether to respond to the first type of frame, based on a first value selected randomly from a first value range and the number of the plurality of frequency components for the UL-OFDMA random access;
- in response to determining to respond to the first type of frame, selecting one frequency component from the plurality of frequency components for the UL-OFDMA random access;
- transmitting a second type of frame for response to the first type of frame for using the selected frequency component;
- determining whether transmission of the second type of frame has succeeded or failed;
- and
- adjusting the first value range based on a result of determining whether transmission of the second type of frame has succeeded or failed;
- wherein the first type of frame includes second information designating a certain terminal to transmit the second type of frame using a second frequency component different from the plurality of frequency components for the UL-OFDMA random access,
- the method comprises
- determining whether the wireless communication device is designated in the second information as the certain terminal,
- in response to determining that the wireless communication device is not designated in the second information as the certain terminal, determining whether to respond to the first type of frame based on the first value and the number of the plurality of frequency components for the UL-OFDMA random access, and
- in response to determining that the wireless communication device is designated in the second information as the certain terminal, not determining whether to respond to the first type of frame based on the first value and the number of the plurality of frequency components for the UL-OFDMA random access, and
- in response to determining that the wireless communication device is designated in the second information as the certain terminal, transmitting the second type of frame using the second frequency component.
10 more elements
Dependencies are inferred from the claim text.