Electronic device, wireless communication device, and communication control method
AssigneeKabushiki Kaisha Toshiba
InventorTadahiro Aihara
Life of this patent
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Abstract
According to one embodiment, an electronic device transmits a probe request frame to a wireless LAN access point through a first channel in a first frequency band, extracts additional information about a second frequency band higher than the first frequency band from a probe response frame received from the wireless LAN access point, changes a channel to be used by a wireless LAN device to a second channel in the second frequency band indicated by the additional information, and executes a sequence for connecting the electronic device to the wireless LAN access point by using a first service set ID indicated by the additional information and corresponding to the second channel.
Claims10
An electronic device comprising:
- a wireless LAN device configured to execute wireless data communication by using one of a first frequency band and a second frequency band higher than the first frequency band;
- and
- a control module configured to control an operation of the wireless LAN device,
- wherein the control module is further configured to:
- transmit a probe request frame to a wireless LAN access point through a first channel in the first frequency band;
- extract additional information about the second frequency band from a probe response frame received from the wireless LAN access point;
- change a channel to be used by the wireless LAN device to a second channel in the second frequency band, the second channel in the second frequency band being indicated by the additional information;
- and
- execute a sequence for connecting the electronic device to the wireless LAN access point by using a first service set ID of the wireless LAN access point, wherein the first service set ID of the wireless LAN access point corresponds to the second channel and is indicated by the additional information.
A communication control method of an electronic device including a wireless LAN device configured to execute wireless data communication by using one of a first frequency band and a second frequency band higher than the first frequency band, comprising:
- transmitting a probe request frame to a wireless LAN access point through a first channel in the first frequency band;
- extracting additional information about the second frequency band from a probe response frame received from the wireless LAN access point;
- changing a channel to be used by the wireless LAN device to a second channel in the second frequency band, the second channel in the second frequency band being indicated by the additional information;
- and
- executing a sequence for connecting the electronic device to the wireless LAN access point by using a first service set ID of the wireless LAN access point, wherein the first service set ID of the wireless LAN access point corresponds to the second channel and is indicated by the additional information.
A wireless communication device configured to execute wireless data communication using a first frequency band and wireless data communication using a second frequency band higher than the first frequency band,
- wherein the device is further configured to:
- transmit a first beacon frame through a first channel in the first frequency band;
- transmit a second beacon frame through a second channel in the second frequency band;
- and
- transmit to a wireless LAN client a probe response frame in response to reception of a probe request frame from the wireless LAN client through the first channel, wherein the probe response frame includes additional information indicating the second channel and a first service set ID of the wireless communication device, and wherein the first service set ID corresponds to the second channel to the wireless LAN client.
Dependencies are inferred from the claim text.