Predictable communication establishment in ad-hoc wireless network
First Claim
1. A method of communicating between a first node and a second node in an ad-hoc communication system, the method comprising the steps of:
- defining periodic windows for the first and the second nodes, each of said periodic windows including a time point located therein, said time point locations changing in a pseudo-random manner in consecutive periodic windows; and
initiating, by the first node, during one or more of the time points, communication with the second node.
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Abstract
A system and method of communicating between nodes in an ad-hoc frequency-hopping based communication infrastructure, such as a Bluetooth system. The scheduling of page scan and inquiry scan periods within a piconet is based on a pseudo-random principle. By using pseudo-random scheduling of the inquiry scan and page scan intervals, the position of each interval can be easily predicted in advance. Periodic windows are predefined for a communicating node pair. Each of the periodic windows include a time point, i.e., slot, the location of which changes in a pseudo-random manner in consecutive periodic windows.
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Citations
23 Claims
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1. A method of communicating between a first node and a second node in an ad-hoc communication system, the method comprising the steps of:
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defining periodic windows for the first and the second nodes, each of said periodic windows including a time point located therein, said time point locations changing in a pseudo-random manner in consecutive periodic windows; and
initiating, by the first node, during one or more of the time points, communication with the second node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A node arranged to communicate in an ad-hoc communication system, the node comprising:
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means that define periodic windows for the node, each of said periodic windows including a time point located therein, said time point locations changing in a pseudo-random manner in consecutive periodic windows; and
means that initiate during one or more of the time points, communication with another node of the ad-hoc frequency-hopping based communication infrastructure. - View Dependent Claims (17, 18, 19)
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20. A computer program product for controlling communication between a first node and a second node in an ad-hoc communication system, the computer program product comprising:
a computer-readable storage medium having computer-readable program code means embodied in said medium, said computer-readable program code means including;
logic that defines periodic windows for the first and the second nodes, each of said periodic windows including a time point located therein, said time point locations changing in a pseudo-random manner in consecutive periodic windows; and
logic that initiates, via the first node, during one or more of the time points, communication with the second node. - View Dependent Claims (21, 22, 23)
Specification