Data transmission method

Details Data transmission method Data transmission method

2005-05-10

2005-05-10

Ho, Duc (Department: 2665)

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

C714S748000, C714S751000

Reexamination Certificate

active

06891799

ABSTRACT:
In a data transmission method of the present invention, not only when relay of input packets is performed but also transmission of a retransmission packet or a correction packet is performed, changes in an output rate due to output rate control is suppressed, and data transmission is efficiently performed according to a capacity of an output channel. A data transmission device comprises a packet priority decision unit15for deciding priorities of input packets, a retransmission packet, and an FEC packet, an output delay calculation unit17for calculating a delay time until data of the respective packets is reproduced by a receiving terminal, and an FEC packet generation unit19for generating an FEC packet containing an error correcting code which corresponds to a packet designated on the basis of the priorities of the respective packets. When transmission of the retransmission packet and the FEC packet together with the input packets is performed, lower priority packets corresponding to a size of packets which are additionally transmitted are thinned out.

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