Abstract: A wireless network structure comprises a number of node apparatuses and a backbone. The node apparatuses are distributed within a specific range of distance, wherein each of the node apparatus comprises a number of wireless bridge modules, a router and a converter. The wireless bridge modules have specific transmission frequency for transmitting packets. The router is connected to the wireless bridge modules. The converter is connected to the router and to a user-end system. The backbone network is applied for transmitting the packets outward the wireless network structure.