Out-of-order recombination and accurate retransmission request method, system and terminal for large packet data

The invention belongs to the technical field of reliable hardware transmission, and discloses an out-of-order recombination and accurate retransmission request method, system and terminal for large-packet data, and the method comprises the steps: storing a data frame in an off-chip cache when the on-chip cache is full by using an on-chip cache for storing the data frame and an index information table for storing a data storage address and information; the frame loss detection and the accurate retransmission request of the data frame are realized by using the cooperation of the on-chip and off-chip caches and the index information table, the reliable transmission of the data for establishing the connection between any two devices in the network is supported, and the frame loss detection of the data packet and the transmission of the retransmission request to the opposite end are supported. Through on-chip and off-chip combined scheduling, performance acceleration is carried out on big data processing, network