Routing method and wireless node for wireless mesh network

A wireless node for a wireless mesh network, the wireless node comprising:

• a transceiver for transmitting and receiving data;
• and
• a processor coupled to the transceiver,
• wherein the processor performs a route algorithm and finds a plurality of available paths to reach a destination node,
• wherein the processor records the available paths to reach the destination node, at least one parent-child node relationship corresponding to the available paths, and at least one link-state corresponding to the available paths in a route table, and transmitting the data or transferring the data by using an optimal path among the available paths,
• wherein when the optimal path reaching the destination node is not operable, the processor selects another available path as the optimal path from the available paths, updates the route table, and notifies at least one parent wireless node on the optimal path of a node-deleted message, and
• wherein when receiving a node-added message from a newly-added node, the processor performs a block route algorithm to create a block route table in a block to which the newly-added node belongs, update the route table according to the block route table for acquiring a plurality updated available paths, select a path as the optimal path from the updated available paths, and notify the at least one parent wireless node on the optimal path of the node-added message.