The application discloses a multi-hop
relay communication method and device, a terminal device and a
relay device, and relates to the technical field of communication. In the multi-hop
relay network of the application, multiple relay devices provide relay services in each hop. Therefore, even if a certain relay device in a certain hop cannot continue to provide relay services, other relay devices in the hop can continue to provide relay services, avoiding the interruption of the entire communication, thereby improving the reliability and stability of the network. In addition, since multiple relay devices in the same hop can work in parallel, the load of a single relay device is reduced, thereby improving the
throughput of the network. Furthermore, since the relay devices in each hop can be dynamically selected and adjusted according to the demand, the
network structure is more flexible, and can flexibly cope with different load demands,
network topology changes and device states according to the actual situation, thereby improving the adaptability of the network.