Wireless communication method, wireless communication system, and wireless communication apparatus
First Claim
Patent Images
1. A wireless communication system, comprising:
- a control station; and
at least one wireless communication apparatus for performing connection confirmation with the control station, whereinthe wireless communication apparatus transmits connection confirmation information to the control station at a predetermined interval by using a portion of a management field of a transmission frame;
the transmission frame includes the management field and a data field;
the portion of the management field is divided into a plurality of slots, each slot being assigned independently to each wireless communication apparatus for sending the connection confirmation information;
the control station detects the connection confirmation information, whereby a connection status of the wireless communication apparatus is monitored; and
the interval of transmitting the connection confirmation information is changed in accordance with an operating state of the wireless communication apparatus.
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Abstract
A wireless communication system that forms a personal area network and that includes a control station and a communication apparatus. The control station and the communication apparatus perform a connection confirmation process. A connection confirmation period that constitutes a connection cycle is variable for each communication apparatus. When the connection confirmation period arrives each communication apparatus sends connection confirmation information to the control station.
23 Citations
11 Claims
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1. A wireless communication system, comprising:
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a control station; and at least one wireless communication apparatus for performing connection confirmation with the control station, wherein the wireless communication apparatus transmits connection confirmation information to the control station at a predetermined interval by using a portion of a management field of a transmission frame; the transmission frame includes the management field and a data field; the portion of the management field is divided into a plurality of slots, each slot being assigned independently to each wireless communication apparatus for sending the connection confirmation information; the control station detects the connection confirmation information, whereby a connection status of the wireless communication apparatus is monitored; and the interval of transmitting the connection confirmation information is changed in accordance with an operating state of the wireless communication apparatus.
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2. A wireless communication method for performing connection confirmation between a control station and at least one wireless communication apparatus, the method comprising the steps of:
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determining an interval of transmitting connection confirmation information, the determining being performed by the wireless communication apparatus; and transmitting the connection confirmation information to the control station by using a portion of a management field of a transmission frame, the transmitting being performed by the wireless communication apparatus, wherein the transmission frame includes the management field and a data field; the portion of the management field is divided into a plurality of slots, each slot being assigned independently to each wireless communication apparatus for sending the connection confirmation information; and the interval of transmitting the connection confirmation information is changed in accordance with an operating state of the wireless communication apparatus. - View Dependent Claims (3, 4, 5, 6)
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7. A wireless communication apparatus used as a control station of a wireless network, the apparatus comprising:
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wireless communication means for transmitting a signal for identifying the wireless network and for receiving a signal from an other wireless communication apparatus belonging to the wireless network; timing means for timing a predetermined time interval; and an information storage unit for storing the predetermined time interval for each wireless communication apparatus included in the wireless network, wherein the predetermined time interval is variable and is a threshold for determining whether a connection is established; a transmission frame sent from the wireless communication apparatus includes a management field and a data field; and a portion of the management field is divided into a plurality of slots, each slot being assigned independently to each wireless communication apparatus for sending the communication confirmation information. - View Dependent Claims (8)
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9. A wireless communication apparatus for performing connection confirmation with a control station, the apparatus comprising:
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wireless communication means for receiving a signal from the control station and for transmitting connection confirmation information to the control station by using a portion of a management field of a transmission frame; and timing means for timing a predetermined time interval, wherein the predetermined time interval is variable in accordance with an operating state of the wireless communication apparatus; the transmission frame includes the management field and a data field; and the portion of the management field is divided into a plurality of slots, each slot being assigned independently to each wireless communication apparatus for sending the connection confirmation information. - View Dependent Claims (10, 11)
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Specification