Patent ID: 8711695

Claim:
A transmitter terminal comprising: a data generating section of the transmitter terminal that generates data packets; a padding request accepting section of the transmitter terminal that receives a padding request packet for making a padding request, the padding request packet being generated by and transmitted from a receiver terminal; the padding request packet containing a specified packet length to which future packets generated by the transmitter terminal should be set through padding such that numerical packet reordering based on packet header number will not be necessary at the receiver terminal for future received padded data packets from the transmitter terminal, the padding request packet being calculated by the receiver terminal based on received data packets from the transmitter terminal; and a data packet padding section of the transmitter terminal that pads the data packets generated by the data generating section of the transmitter terminal so that a packet length of the data packets becomes the specified packet length or more based on the padding request packet received by the padding request accepting section of the transmitter terminal, and transmits the padded data packets to a network, wherein the specified packet length is estimated by the receiver terminal based on a number of past reorderings that have occurred and a reception bandwidth at a time of reordering.