Data transmission method and data transmission apparatus
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsHideaki Fukushima, Seiji Horii, Tatsuya Ohnishi, Makoto Hagai, Yoshinori Matsui, Akihiro Miyazaki
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Abstract
A data transmission apparatus including a receiving unit for receiving transmitted packets; a priority decision unit; a retransmission packet storage unit; a retransmission instruction receiving unit for receiving a retransmission request from a terminal at the receiving end; a retransmission decision unit; a transmission queue management unit; and a transmission unit.
Claims1
A data signal for use in performing data retransmission between a transmitting end for transmitting said data signal and a receiving end for receiving said data signal, said data signal including a retransmission packet which comprises a header section and a data section, wherein:
- said header section is a first segment of said data signal, and said first segment contains relevant information indicating an attribute of the retransmission packet, the relevant information including two sequence numbers comprising a first sequence number indicating a reproduction order of the retransmission packet, and a second sequence number indicating a transmission order of another retransmission packet;
- and
- said data section is a second segment of said data signal, and said second segment contains data to be transmitted from the transmitting end to the receiving end.
Dependencies are inferred from the claim text.