Radio communication terminal and radio communication system
First Claim
1. A radio communication terminal having a relay route setting part for setting a relay route of a transmission packet to one of nodes in a multihop communication network in accordance with a discrimination result which is obtained by a route searching process of said multihop communication network, a transmitting part for transmitting said transmission packet through said set relay route, a receiving part for receiving a reception packet through said multihop communication network, and an application data processing part for processing application data included in said reception packet, comprising:
- a backup route storing part for storing said relay route as a backup route regarding said one node; and
a route change setting part for obtaining said backup route from said backup route storing part from said relay route setting part in accordance with a detection of an obstacle by said application data processing part and changing and setting the obtained backup route as said relay route regarding said one node.
1 Assignment
0 Petitions
Accused Products
Abstract
A radio communication terminal and a radio communication system which can avoid an obstacle that is caused by a malicious wormhole while using a harmless wormhole. There are provided: a radio communication terminal in which a relay route about a certain node is stored as a backup route about the node and the backup route is changed and set as a relay route about the node in accordance with a detection of an obstacle caused by application data; and a radio communication system in which a sink node transmits a transfer destination change command in association with the change setting and a node which received the command sets a node of a transferring source of the command as a transfer destination node.
7 Citations
8 Claims
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1. A radio communication terminal having a relay route setting part for setting a relay route of a transmission packet to one of nodes in a multihop communication network in accordance with a discrimination result which is obtained by a route searching process of said multihop communication network, a transmitting part for transmitting said transmission packet through said set relay route, a receiving part for receiving a reception packet through said multihop communication network, and an application data processing part for processing application data included in said reception packet, comprising:
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a backup route storing part for storing said relay route as a backup route regarding said one node; and a route change setting part for obtaining said backup route from said backup route storing part from said relay route setting part in accordance with a detection of an obstacle by said application data processing part and changing and setting the obtained backup route as said relay route regarding said one node. - View Dependent Claims (2, 3, 4, 5, 7)
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6. A radio communication system including sink nodes for mutually transmitting and receiving packets through a multihop communication network and at least one normal node,
wherein said sink node comprises: -
a relay route setting part for setting a relay route of a transmission packet to said one normal node in accordance with a discrimination result which is obtained by a route searching process of said multihop communication network; a transmitting part for transmitting said transmission packet through said set relay route; a receiving part for receiving a reception packet through said multihop communication network; an application data processing part for processing application data included in said reception packet; a backup route storing part for storing said relay route as a backup route regarding said one normal node; a route change setting part for having said relay route setting part change and set said backup route as a relay route regarding said one normal node in accordance with a detection of an obstacle caused due to said application data by said application data processing part; and a transfer destination change command generating part for generating a transfer destination change command indicating that a transfer destination node of a transfer packet due to said one normal node should be changed in accordance with said detection and having said transmitting part transmit said transfer destination change command to said one normal node after said relay route setting part has set said relay route, and said normal node comprises; a transfer destination setting part for setting one of a plurality of nodes in said multihop communication network as a transfer destination node of the transfer packet; a transfer part for transferring said transfer packet to said transfer destination node; and a transfer destination forced changing part for having said transfer destination setting part set a node of a transmitting source of said transfer destination change command as said transfer destination node in accordance with said transfer destination change command.
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8. A radio communication system in which a sink node and a normal node mutually transmit and receive packets through at least one relay node in a multihop communication network,
wherein said sink node comprises: -
a relay route setting part for setting a relay route of a transmission packet to said normal node in accordance with a discrimination result which is obtained by a route searching process of said multihop communication network; a transmitting part for transmitting said transmission packet through said set relay route; a receiving part for receiving a reception packet through said multihop communication network; an application data processing part for processing application data included in said reception packet; a backup route storing part for storing said relay route as a backup route regarding said normal node; a route change setting part for having said relay route setting part obtain said backup route from said backup route storing part in accordance with a detection of an obstacle caused due to said application data by said application data processing part and change and set the obtained backup route as the relay route regarding said normal node; and a transfer destination change command generating part for generating a transfer destination change command indicating that a transfer destination node of a transfer packet due to said normal node should be changed in accordance with said detection and having said transmitting part transmit said transfer destination change command to said normal node after said relay route setting part has set said relay route, said relay node comprises; a relay destination setting part for setting one of a plurality of nodes in said multihop communication network as a relay destination node of the relay packet; a relay part for relaying said relay packet to said relay destination node; and a relay destination forced changing part for relaying said transfer destination change command to said normal node by said relay part in accordance with said transfer destination change command transmitted to said normal node which arrived through said multihop communication network and having said relay destination setting part set a node of a transmitting source of said transfer destination change command as said relay destination node, and said normal node comprises; a transfer destination setting part for setting one of a plurality of nodes in said multihop communication network as a transfer destination node of the transfer packet; a transfer part for transferring said transfer packet to said transfer destination node; and a transfer destination forced changing part for having said transfer destination setting part set the node of the transmitting source of said transfer destination change command as said transfer destination node in accordance with said transfer destination change command.
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Specification