Patent ID: 8854957

Claim:
A packet retransmission control system which executes high-speed retransmission control of a lower layer of a transmission packet by a retransmission time-out shorter in time than a protocol of a transport layer, comprising: a retransmission control determination module which determines whether to execute high-speed retransmission control by a lower layer based on a predetermined condition with respect to a packet to be transmitted; an MAC retransmission control module which executes retransmission control of a transmission packet by the retransmission time-out shorter in time than the protocol of the transport layer with respect to a packet determined to be subjected to high-speed retransmission control; and an external output module which externally outputs a packet subjected to retransmission control by the MAC retransmission control module or a packet whose high-speed retransmission control is determined to be unnecessary.