Communication method, communication device, and computer program
First Claim
1. A communication method of performing a wireless communication operation in a network including a plurality of communication stations having no relation of a control station and a controlled station, comprising the steps of:
- transmitting from a communication station a beacon in which information with respect to the network is written; and
setting by the communication station a state in which a reception operation is performed during a period of time before and after the transmission of said beacon signal.
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Accused Products
Abstract
In order to solve a problem of an accumulation on the transmission side, a delay on the reception side, and the like at the time of transmission in a communication system such as a wireless LAN system, each communication station in a network transmits a beacon in which information with respect to the network is written and sets a state in which a reception operation is performed during periods of time before and after the transmission of the beacon signal when performing access control not to make communication timing of a packet collide with that of another station by detecting a signal transmitted from another station. With performing such processing, a system can be formed based on minimum level of transmission and reception operation when transmission and reception data does not exist in each communication station in the network, and also a data transfer can be performed with latency as small as possible in a minimum necessary level of transmission and reception operation by making a transition of a transmission and reception state in accordance with a fluctuating volume of transmission and reception data.
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Citations
31 Claims
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1. A communication method of performing a wireless communication operation in a network including a plurality of communication stations having no relation of a control station and a controlled station, comprising the steps of:
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transmitting from a communication station a beacon in which information with respect to the network is written; and
setting by the communication station a state in which a reception operation is performed during a period of time before and after the transmission of said beacon signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A communication apparatus which operates in a network built under a wireless communication environment of an autonomous distributed type, comprising:
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communication means for transmitting and receiving wireless data;
beacon generation means for generating a beacon signal in which information with respect to the network is written to be transmitted by said communication means; and
control means for setting a state in which a reception operation is performed during periods of time before and after the transmission of the beacon signal generated by said beacon generation means. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A computer program in which processing of performing access control not to make communication timing of a packet collide with that of another station by detecting a signal transmitted from another station in a network including a plurality of communication stations is written in a computer readable form so that the program is executed on a computer system, comprising the steps of:
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transmitting a beacon in which information with respect to the network is written; and
setting a state in which a reception operation is performed during periods of time before and after the transmission of said beacon signal.
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Specification