| 摘要 |
<p>Disclosed is a technique of avoiding a loop and re-constructing a tree while maintaining a tree structure of its own subordinates even in the case of a disconnection from a host connection-accepting wireless node. The technique comprises a storage means 101 for storing information on the number of hops when counted from a root wireless node apparatus positioned at a vertex of a tree structure of a multihop wireless LAN and on a state flag indicative of a connection state as to whether the wireless node apparatus connects with a multihop wireless LAN connected to an external network, a recognizing means 102 for recognizing a connection state with respect to the multihop wireless LAN connected to the external network, a collecting means 103 for, when the recognizing means 102 recognizes a disconnection from the multihop wireless LAN connected to the external network, collecting the information on the number of hops and on the state flag from peripheral wireless node apparatus, and a selecting means 104 for selecting a new connection-accepting wireless node apparatus on the basis of the collected information on the number of hops and the state flag.</p> |
