Wireless communication system and wireless communication apparatus
First Claim
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1. A wireless communication system, comprising:
- a plurality of wireless communication apparatuses forming an ad-hoc network, each wireless communication apparatus having a superframe, wherein an operating state of each superframe of each wireless communication apparatus is determined from three operating states which are an active state in which beacon signal transmission/reception and data transmission/reception are performed as necessary, a sleep state in which beacon signal transmission/reception and data transmission/reception are not performed, and a pre-receive state in which a beacon signal is received and afterward beacon signal transmission and data transmission are not performed.
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Abstract
A wireless communication system includes plural wireless communication apparatuses which form an ad-hoc network. In the system, an operating state of each superframe of each wireless communication apparatus is determined from three operating states: an active state in which beacon signal transmission/reception and data transmission/reception are performed as necessary; a sleep state in which beacon signal transmission/reception and data transmission/reception are not performed; and a pre-receive state in which a beacon signal is received and afterward beacon signal transmission and data transmission are not performed.
53 Citations
16 Claims
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1. A wireless communication system, comprising:
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a plurality of wireless communication apparatuses forming an ad-hoc network, each wireless communication apparatus having a superframe, wherein an operating state of each superframe of each wireless communication apparatus is determined from three operating states which are an active state in which beacon signal transmission/reception and data transmission/reception are performed as necessary, a sleep state in which beacon signal transmission/reception and data transmission/reception are not performed, and a pre-receive state in which a beacon signal is received and afterward beacon signal transmission and data transmission are not performed.
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2. A wireless communication apparatus connectable to an ad-hoc network, the wireless communication apparatus comprising:
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a superframe, wherein an operating state of the superframe is determined from three operating states which are an active state in which beacon signal transmission/reception and data transmission/reception are performed as necessary, a sleep state in which beacon signal transmission/reception and data transmission/reception are not performed, and a pre-receive state in which a beacon signal is received and afterward beacon signal transmission and data transmission are not performed. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A wireless communication apparatus connectable to an ad-hoc network, the wireless communication apparatus comprising:
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a superframe;
an operating mode setting device configured to set an operating mode allowing an operating state of each superframe to transition at a predetermined period, wherein the operating state is determined from three operating states which are an active state in which beacon signal transmission/reception and data transmission/reception are performed as necessary, a sleep state in which beacon signal transmission/reception and data transmission/reception are not performed, and a pre-receive state in which a beacon signal is received and afterward beacon signal transmission and data transmission are not performed, and the operating mode setting device sets a low power consumption mode of transitioning from the sleep state to the pre-receive state in a predetermined superframe period.
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13. A recording medium recorded with a computer program allowing a computer to function as a wireless communication apparatus connectable to an ad-hoc network, the wireless communication apparatus having a superframe, the program comprising:
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determining an operating state of each superframe of the wireless communication apparatus from three operating states which are an active state in which beacon signal transmission/reception and data transmission/reception are performed as necessary, a sleep state in which beacon signal transmission/reception and data transmission/reception are not performed, and a pre-receive state in which a beacon signal is received and afterward beacon signal transmission and data transmission are not performed.
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14. A recording medium recorded with a computer program allowing a computer to function as a wireless communication apparatus connectable to an ad-hoc network, the wireless communication apparatus having a superframe and an operating mode setting device configured to set an operating mode allowing an operating state of the superframe to transition at a predetermined period, the program comprising:
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determining the operating state of each superframe from three operating states which are an active state in which beacon signal transmission/reception and data transmission/reception are performed as necessary, a sleep state in which beacon signal transmission/reception and data transmission/reception are not performed; and
a pre-receive state in which a beacon signal is received and afterward beacon signal transmission and data transmission are not performed; and
setting a low power consumption mode of transitioning from the sleep state to the pre-receive state in a predetermined superframe period.
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15. A wireless communication apparatus constituting an ad-hoc network, the wireless communication apparatus comprising:
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a superframe, wherein the wireless communication apparatus sets a low power consumption mode allowing a periodic transition of an operating state of each superframe between an active state in which beacon signal transmission/reception and data transmission/reception are performed as necessary, a sleep state in which beacon signal transmission/reception and data transmission/reception are not performed, the sleep state over a plurality of superframes, and the active state over a plurality of superframes.
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16. A recording medium recorded with a computer program allowing a computer to function as a wireless communication apparatus connectable to an ad-hoc network, the program comprising:
setting a low power consumption mode allowing a periodic transition of an operating state of each superframe of the wireless communication apparatus between an active state in which beacon signal transmission/reception and data transmission/reception are performed as necessary, a sleep state in which beacon signal transmission/reception and data transmission/reception are not performed, the sleep state over a plurality of superframes, and the active state over a plurality of superframes.
Specification