Method for solving WLAN network coverage blind area by terminal relay

[0030] The present invention is a method for using terminal relay to solve the coverage blind area of ​​a WLAN network. The implementation of the method can effectively solve the base station signal coverage problem in a complex environment and expand the range of the WLAN network.

[0031] The base station and terminal equipment establish a basic neighbor list through broadcast messages, and at the same time establish a topological relationship with neighbors according to the number of hops and device type identification in the message, and establish a basic tree routing table. When the destination address that the child node needs to send is not in the neighbor list, it is directly sent to the root node; when the destination address that the root node needs to send is not in the neighbor list, the route request process is initiated. The terminal equipment passes through a series of terminal nodes through multiple hops to provide a long end-to-end communication distance while providing a sufficiently high data transmission rate. Compared with the distance between the sending end and the receiving end, the distance between each node (per hop) is relatively short, and each hop can complete a much higher data transmission rate than direct communication, which makes the long-distance end The end-to-end communication system can also support high data transmission rates. In this terminal relay mode, each node only needs to transmit a short distance, so their transmission power is relatively small, which greatly reduces the interference in the system And make the frequency reuse more dense. In addition, because the data can be transmitted through intermediate nodes, the network enables signals to bypass obstacles and blockages in the local network to establish a robust route.