| 摘要 |
The invention provides a discovery method for a power line communication network. Any node in the network can periodically broadcast a discovery request, comprising a node address of this node, a total downward/upward path cost through the node and a downward/upward hop address associated with the total downward/upward path cost. An unregistered node can select a best downward hop address from its populated discovery table and subsequently broadcast a registration request. Upon reception of the registration request, a data concentrator transmits a registration confirm message. A registered node generally may update its downward hop based on current total downward path cost and send a registration request with the newly selected downward hop. Similarly a registered node may send a registration request to DC on behalf of a node that transmitted the discovery request if it determined to be replaced as an upward hop for the node. |
