APPARATUS AND METHOD FOR SEARCHING ROUTE OF MOBILE NODE IN SHORT-RANGE COMMUNICATION ENVIRONMENT
First Claim
1. A method for searching a route of a mobile node in a short-range communication environment, comprising the steps of:
- acquiring a unique address of the mobile node, for communication with the mobile node by a first router having a group that includes the mobile node;
determining whether the mobile node travels during communication;
when the mobile node travels, broadcasting the unique address of the mobile node to one or more neighboring routers and determining whether groups of the one or more neighboring routers include the mobile node; and
if a second router, which is one of the one or more neighboring routers, has a group that includes the mobile node, performing communication using the unique address without an additional address acquisition process.
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Accused Products
Abstract
A method is provided for searching a route of a mobile node in a short-range communication environment. A first router to which a mobile node belongs acquires a unique address of the mobile node for communication with the mobile node. The first router determines whether the mobile node travels during communication. When the mobile node travels, the first router broadcasts the unique address of the mobile node to one or more neighboring routers and determines whether the one or more neighboring routers include the mobile node. If a second router, which is one of the one or more neighboring routers, includes the mobile node, the second router performs communication using the unique address without an additional address acquisition process.
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Citations
11 Claims
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1. A method for searching a route of a mobile node in a short-range communication environment, comprising the steps of:
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acquiring a unique address of the mobile node, for communication with the mobile node by a first router having a group that includes the mobile node; determining whether the mobile node travels during communication; when the mobile node travels, broadcasting the unique address of the mobile node to one or more neighboring routers and determining whether groups of the one or more neighboring routers include the mobile node; and if a second router, which is one of the one or more neighboring routers, has a group that includes the mobile node, performing communication using the unique address without an additional address acquisition process. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for searching a route of a mobile node in a short-range communication environment, comprising:
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the mobile node for transmitting a network join request message to a router to which the mobile node belongs and receiving a response message to the network join request message from the router; the router for transmitting the network join request message received from the mobile node, transmitting the response message to the mobile node, and broadcasting a unique address of the mobile node included in the response message when the mobile node travels; and a coordinator for receiving the network join request message from the router, generating the response message, and transmitting the response message to the router. - View Dependent Claims (10, 11)
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Specification