Efficient and reliable large-amount data transmission method and system.

摘要

Data communication method and system for transmitting a large amount of data via a network (202) such as LAN to which a plurality of stations or terminals (201, 203, 204, 205) are connected, through a simplified processing procedure with high reliability and high efficiency while suppressing influence to other communications. The large amount of data is transmitted from a sender station to a plurality of receiver stations by utilizing a connectionless communication service, while inter-station reception acknowledging/retransmitting processings are performed by using a connection-oriented communication service. The large amount of data to be transmitted is divided into a plurality of blocks, and inter-block delay time is set on the basis of station status factors such as a permissible load increase rate of the CPU of the individual stations. <IMAGE>