Method of supporting node portability in sensor network
First Claim
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1. A method of supporting portable node portability in a sensor network, the method comprising:
- detecting portability from an old parent node to a new parent node;
receiving a new address from the new parent node through an active scanning; and
transmitting the new address to the old parent node,wherein the detecting of portability comprises detecting portability of the portable node by detecting that a reception confirmation message about transmitted data from the old parent node is not received, or by the old parent node detecting that a reception confirmation message about transmitted data from the portable node is not received.
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Abstract
Provided is a method of supporting node portability in a sensor network, wherein data transmission to a portable node can be guaranteed since even when the portable node is assigned with a different address by being associated with another network, the newly assigned address is transmitted to a parent node or a sink node that was previously associated with the portable node.
7 Citations
13 Claims
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1. A method of supporting portable node portability in a sensor network, the method comprising:
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detecting portability from an old parent node to a new parent node; receiving a new address from the new parent node through an active scanning; and transmitting the new address to the old parent node, wherein the detecting of portability comprises detecting portability of the portable node by detecting that a reception confirmation message about transmitted data from the old parent node is not received, or by the old parent node detecting that a reception confirmation message about transmitted data from the portable node is not received. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of supporting portable node portability by a relay node in a sensor network, the method comprising:
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receiving a new address of the portable node from an old parent node of the portable node; notifying a change of an address of the portable node to a source node after receiving data set as an old address of the portable node from the source node; and routing the received data to the new address of the portable node. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification