Wireless communication device and controlling method thereof
AssigneeKabushiki Kaisha Toshiba
InventorTomoya Suzuki
Life of this patent
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Abstract
According to one embodiment, a wireless communication device includes a reception circuit receiving a frame including first and second data units, the first and second data units each including first and second data areas, the first data area including channel bandwidth information; and a control circuit controlling the reception circuit. The reception circuit receives the first data area with a first frequency bandwidth corresponding to a first channel bandwidth for the first data unit. When the channel bandwidth information indicates a second channel bandwidth, the control circuit switches, before reception of the second data, a frequency bandwidth of the reception circuit to a second frequency bandwidth corresponding to the second channel bandwidth.
Claims20
A wireless communication device comprising:
- a reception circuit receiving a data frame including first and second data units, the first and second data units each including a first data area and a second data area following the first data area, the first data area including channel bandwidth information of the data frame;
- and
- a control circuit controlling the reception circuit based on the channel bandwidth information,
- wherein, the reception circuit receives the first data area of the first data unit with a first frequency bandwidth corresponding to a first channel bandwidth for the first data unit,
- when the channel bandwidth information is indicative of a second channel bandwidth different from the first channel bandwidth, the control circuit switches, before the reception circuit receives the second data, a frequency bandwidth of the reception circuit to a second frequency bandwidth corresponding to the second channel bandwidth.
A wireless communication device comprising:
- a reception circuit receiving a data frame including first and second data units, the first and second data units each including a first data area and a second data area following the first data area;
- and
- a control circuit controlling the reception circuit based on an analysis result of the first data area,
- wherein, the reception circuit receives the first data area with a first frequency bandwidth corresponding to a first channel bandwidth for the first data unit,
- the control circuit switches, before the reception circuit receives the second data, a frequency bandwidth of the reception circuit to a second frequency bandwidth different from the first frequency bandwidth.
A method of controlling a wireless communication device,
- receiving, by using a reception circuit, the data frame including first and second data units with a first frequency bandwidth corresponding to a first channel bandwidth of the first data unit, each of the first and data units including a first data area and a second data area following the first data area;
- analyzing the first data area;
- and
- switching the frequency bandwidth of the reception circuit to a second frequency bandwidth different from the first frequency bandwidth based on a result of the analyzing of the first data area before a reception of the second data area.
Dependencies are inferred from the claim text.