WIRELESS COMMUNICATION DEVICE, WIRELESS COMMUNICATION METHOD, AND WIRELESS COMMUNICATION SYSTEM
The wireless communication device includes a first wireless communication module that performs wireless communication with a master device belonging to a first communication group by switching a plurality of channels having no frequency overlapping area. The wireless communication device includes a second wireless communication module that performs wireless communication with a slave device belonging to a second communication group by switching the plurality of channels. The wireless communication device includes a control circuit that issues a command of a channel to be used for communication and a channel switching timing to the first and second wireless communication modules. The first and second wireless communication modules relay a packet between the master device and the slave device and, in response to the command, switch channels # 1 and # 2 in synchronization with each other.
1 . A wireless communication device circuitry comprising:
a first wireless communication module circuitry that performs wireless communication with a communication device circuitry belonging to a first communication group while switching a plurality of channels having no frequency overlapping area;
a second wireless communication module circuitry that performs wireless communication with a communication device circuitry belonging to a second communication group while switching a plurality of channels having no frequency overlapping area; and
control circuitry that issues a command to specify a channel to be used for communication and a channel switching timing to the first wireless communication module circuitry and the second wireless communication module circuitry, wherein
the first wireless communication module circuitry and the second wireless communication module circuitry are configured to perform
relaying a packet between the communication device circuitry belonging to the first communication group and the communication device circuitry belonging to the second communication group, and
perform, in response to the command,
switching the channels in synchronization with each other, and
selecting channels to be used for communication such that channels to be simultaneously used have no overlapping area.
2 . The wireless communication device circuitry according to claim 1 , wherein:
the first wireless communication module circuitry and the second wireless communication module circuitry are configured further to perform
monitoring a transmission time for each channel to be used for communication, and
when the transmission time reaches a time limit for a single channel, stopping subsequent transmission through the channel.
3 . The wireless communication device circuitry according to claim 2 , wherein
said wireless communication device circuitry is used in an environment in which
a single wireless device circuitry is subject to a restriction on the time transmitting data through a single channel, and is newly allowed to transmit data within the restriction when the channel is switched.
4 . The wireless communication device circuitry according to claim 1 , wherein:
the plurality of channels includes a first channel and a second channel; and
the first channel and the second channel each have a frequency band having a same width.
5 . The wireless communication device circuitry according to claim 1 , wherein:
the plurality of channels includes a first channel and a second channel; and
the first channel has a wider frequency band than the second channel.
6 . The wireless communication device circuitry according to claim 5 , wherein:
packet congestion is more likely to occur in the first wireless communication module circuitry than in the second wireless communication module circuitry; and
a first use time during which the first wireless communication module circuitry uses the first channel is set longer than a second use time during which the first wireless communication module circuitry uses the second channel.
7 . A wireless communication method of causing a wireless communication device circuitry to relay communication between a communication device circuitry belonging to a first communication group and a communication device circuitry belonging to a second communication group, wherein:
the wireless communication device circuitry includes:
a first wireless communication module circuitry that performs wireless communication with the communication device circuitry belonging to the first communication group while switching a plurality of channels having no frequency overlapping area;
a second wireless communication module circuitry that performs wireless communication with the communication device circuitry belonging to the second communication group while switching a plurality of channels having no frequency overlapping area; and
a control circuitry that issues a command to specify a channel to be used for communication and a channel switching timing to the first wireless communication module circuitry and the second wireless communication module circuitry; and
the first wireless communication module circuitry and the second wireless communication module circuitry perform:
relaying a packet between the communication device circuitry belonging to the first communication group and the communication device circuitry belonging to the second communication group;
in response to the command, switching the channels in synchronization with each other; and
in response to the command, selecting channels to be used for communication such that channels to be simultaneously used have no overlapping area.
8 . A wireless communication system including a communication device circuitry belonging to a first communication group, a communication device circuitry belonging to a second communication group, and a wireless communication device circuitry that relays communication between the communication device circuitry, wherein
the wireless communication device circuitry includes:
a first wireless communication module circuitry that performs wireless communication with the communication device circuitry belonging to the first communication group while switching a plurality of channels having no frequency overlapping area;
a second wireless communication module circuitry that performs wireless communication with the communication device circuitry belonging to the second communication group while switching a plurality of channels having no frequency overlapping area; and
a control circuitry that issues a command to specify a channel to be used for communication and a channel switching timing to the first wireless communication module circuitry and the second wireless communication module circuitry, and wherein
the first wireless communication module circuitry and the second wireless communication module circuitry are configured to perform:
relaying a packet between the communication device circuitry belonging to the first communication group and the communication device circuitry belonging to the second communication group, and
perform, in response to the command,
switching the channels in synchronization with each other, and
selecting channels to be used for communication such that channels to be simultaneously used have no overlapping area.