Patent ID: 7586952
Filing Date: 2009-09-08
Classification: H04L

Abstract:
1. A packet transmission system for successively sending source data from a sender unit after dividing the data into packets and for sending a receipt acknowledgment in response to each packet sent from a receiver unit that has received the receive packet to the sender unit, said receiver unit comprising: a data position storage unit for storing a data position of each received packet on said source data; a timeout condition setting unit for setting timeout conditions including a packet arrival maximum wait time; a timeout condition decision unit for making a decision based on said timeout conditions as to whether there is a timeout; and a receipt acknowledgment creation unit for creating a pseudo receipt acknowledgment based on the data position on said source data stored in said data position storage unit in a case where the timeout condition decision unit has determined that there is a timeout; wherein said packet arrival maximum wait time is set approximately to ((WIN/ABR)−RTT) seconds, where an average transmission speed is ABR bytes/second, an average reciprocation delay time of transmission between said sender and receiver units is RTT seconds, and a window size having a data size capable of being sent continuously without waiting for a receipt acknowledgment is WIN bytes.