SYSTEM FOR RELIABLY TRANSFERRING DATA BETWEEN AT LEAST TWO STATIONS MUTUALLY CONNECTED THROUGH RADIO INFORMATION TRANSMISSION NETWORK

摘要

PROBLEM TO BE SOLVED: To provide a system for reliably transferring data between at least two stations mutually connected through a radio information transmission network. ;SOLUTION: A transmitting station 1 transfers data in the form of a frame containing suitability verification information for verifying the suitability of the frame and a receiving station 2 is provided with a means 11 for receiving the data and confirming the frame on the basis of corresponding suitability verification information. In such a system, on the basis of the result confirming the frame transmitted to the transmitting station 1, the receiving station 2 transmits a reception confirm signal ACK showing the reception of the effective frame or reception confirm signal NACK showing the reception of ineffective frame and a start means is provided for starting sending the said data frame again when transmitting station 1 receives NACK or receives no reception confirm signal showing the reception of the frame each time a predetermined period T1 ends.;COPYRIGHT: (C)2001,JPO