Wireless communication apparatus, system, and device communicating with another wireless communication apparatus, system, and device in an autonomous distributed network without a designated control station and method thereof
First Claim
1. A wireless communication apparatus for communicating with another wireless communication apparatus in an autonomous distributed network without a designated control station apparatus,said wireless communication apparatus comprising:
- frame period setting means for setting a frame period for the wireless communication apparatus;
data slot setting means for setting slots serving as data transmission units;
scan period setting means for setting a scan period, the scan period being longer than said frame period;
scan operation period setting means for setting a scan operation period to engage in a continuous receiving operation over a time of the frame period;
reception slot setting means for setting at least one reception slot for receiving a signal in said frame period; and
beacon generating portion for generating a beacon signal that includes the reception slot information and the frame period information.
1 Assignment
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Accused Products
Abstract
A wireless communication apparatus, a wireless communication system, and a wireless communication method enabling any plurality of apparatuses to engage in time division multiplex communication for communicating a plurality of data even if not all apparatuses in the network are accurately synchronized, perform a time division multiplex connection method of an autonomous distributed network that performs a continuous receiving (scan) operation over a frame period so as to obtain a grasp of the wireless communication apparatuses located at the neighborhood at predetermined periods, that includes the steps of receiving beacon signals from other wireless communication apparatuses to obtain a grasp of the wireless communication apparatuses that they are communicable with, calculating the reception slot of the wireless communication apparatus from the received beacon information, setting its own reception slot so as not to collide with the set situation thereof, and forming network autonomously engaging in time division multiplex communication with other wireless communication apparatuses located at the neighborhood.
15 Citations
24 Claims
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1. A wireless communication apparatus for communicating with another wireless communication apparatus in an autonomous distributed network without a designated control station apparatus,
said wireless communication apparatus comprising: -
frame period setting means for setting a frame period for the wireless communication apparatus; data slot setting means for setting slots serving as data transmission units; scan period setting means for setting a scan period, the scan period being longer than said frame period; scan operation period setting means for setting a scan operation period to engage in a continuous receiving operation over a time of the frame period; reception slot setting means for setting at least one reception slot for receiving a signal in said frame period; and beacon generating portion for generating a beacon signal that includes the reception slot information and the frame period information. - View Dependent Claims (2, 3, 4, 5)
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6. A wireless communication apparatus for communicating with another wireless communication apparatus in an autonomous distributed network without a designated control station apparatus,
said wireless communication apparatus comprising: -
frame period setting means for setting a frame period for the wireless communication apparatus; data slot setting means for setting slots serving as data transmission units; scan period setting means for setting a scan period longer than said frame period; scanning means for receiving a beacon signal transmitted from another wireless communication apparatus in a scan operation period set in a continuous receiving operation over a time of said frame period; beacon analyzing portion for analyzing the received beacon signal that includes the reception slot information and the frame period information; and reception slot setting means for setting at least one reception slot for receiving a signal in said frame period. - View Dependent Claims (7, 8, 9, 10)
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11. A wireless communication system for communication among a plurality of wireless communication apparatuses in an autonomous distributed network without a designated control station apparatus, wherein
each of the wireless communication apparatus configuring the network comprises: -
frame period setting means for setting a frame period for the wireless communication apparatus; data slot setting means for setting slots serving as data transmission units; beacon slot setting means for setting beacon slots for transmitting beacon signals at a predetermined timing of said frame period; reception slot setting means for setting at least one reception slot for receiving a signal in the receiving operation in said frame period; beacon generating portion for generating a beacon signal that has information about a timing of a reception slot set by said reception slot setting means and the frame period information; transmitting means for transmitting the beacon signal informing its presence to another wireless communication apparatus in the neighborhood; scan period setting means for setting a scan period longer than said frame period; managing means for managing a timing of receiving a beacon signal of another wireless communication apparatus in the neighborhood and timing of the reception slot, and for performing continuous reception over a time of said frame period and receiving a beacon signal of another wireless communication apparatus in the neighborhood in a scan operation period set over a time of said frame period; and beacon analyzing portion for analyzing the received beacon signal that includes the reception slot information and the frame period information. - View Dependent Claims (12, 13)
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14. A wireless communication method for communication among a plurality of wireless communication apparatuses in an autonomous distributed network without a designated control station apparatus, wherein each wireless communication apparatus being operable for:
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setting a frame period and slots serving as data transmission units for the wireless communication apparatus; setting a beacon slot for transmitting a beacon signal at a predetermined timing of said frame period; setting reception slot for receiving a signal in a receiving operation in said frame period; setting a scan period longer than said frame period; setting a scan operation period to engage in a continuous receiving operation over a time of the frame period; and generating a beacon signal that includes the reception slot information and the frame period information. - View Dependent Claims (15, 16, 17)
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18. A wireless communication method for communication among a plurality of wireless communication apparatuses in an autonomous distributed network without a designated control station apparatus, wherein each wireless communication apparatus being operable for:
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setting a frame period and slots serving as data transmission units for the wireless communication apparatus, setting a scan period longer than said frame period, and the scan period setting in a scan operation period performing scan processing for continuous receiving operation over a time of said frame period, receiving a beacon signal transmitted from another wireless communication apparatus located in the neighborhood in the scan operation period, analyzing the received beacon signal that includes the reception slot information and the frame period information, and setting at least one reception slot for receiving a signal in said frame period. - View Dependent Claims (19, 20)
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21. A wireless communication method for communication among a plurality of wireless communication apparatuses in an autonomous distributed network without a designated control station apparatus, comprising, at each wireless communication apparatus, the steps of:
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setting a frame period and slots serving as data transmission units for the wireless communication apparatus, setting a beacon slot for transmitting a beacon signal at a timing of head of said frame period and a reception slot for receiving a signal in a receiving operation in said frame period, generating a beacon signal that has information about a timing of the set reception slot and the frame period information, transmitting the beacon signal that notifies its existence to another wireless communication apparatus located in the neighborhood, setting a scan period longer than said frame period and performing scan processing for continuous reception over the time of said frame period, receiving a beacon signal from another wireless communication apparatus located in the neighborhood in a scan operation period set over a time of said frame period, and analyzing the received beacon signal that includes the reception slot information and the frame period information. - View Dependent Claims (22, 23, 24)
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Specification