The invention discloses a federal
relay transmission method and
system and
terminal equipment, and the transmission method comprises the steps: obtaining a model increment generated by each
client in a local training model, and carrying out the fragmentation and
encryption processing, and obtaining a data unit set; obtaining a path
list currently issued by the aggregator, distributing a transmission path for each data unit in the data unit set, and packaging routing information; multi-hop forwarding is carried out on the data unit through the
relay node, link index information is recorded and reported to the aggregator, and the aggregator updates the path
list based on the link index information; and verifying, decrypting and recombining the received data units in the aggregator, and updating the
global model based on the model increment recombined by all the clients. The method is applied to the field of
encryption transmission, safe, reliable and efficient transmission of model increment in
federated learning can be effectively achieved, and data privacy is protected and the method adapts to a
complex network environment through end-to-end
encryption, fragmentation parallel transmission and dynamic multi-hop path optimization.