Data transmission method and data transmission apparatus
AssigneePanasonic Corporation
InventorsHideaki Fukushima, Seiji Horii, Tatsuya Ohnishi, Makoto Hagai, Yoshinori Matsui, Akihiro Miyazaki
Life of this patent
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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.
Claims29
(canceled)
A data transmission method for transmitting data in units of packets, each of the packets have a sequence number and timestamp, said method comprising:
- a receiving step of receiving a retransmission request for a retransmission packet instead of a lost original packet;
- and
- a retransmitting step of performing retransmission of the retransmission packet having an original sequence number for the original packet and a sequence number for the retransmission packet.
A data transmission method for receiving data in units of packets, each of the packets have a sequence number and timestamp, said method comprising:
- a detecting step of detecting a lost packet;
- a transmitting step of transmitting a retransmission request for a retransmission packet instead of an original packet that is the lost packet detected by the detecting step;
- and
- a receiving step of performing reception of the retransmission packet which is retransmitted based on the retransmission request, the retransmission packet having an original sequence number for the original packet and a sequence number for the retransmission packet.
A data transmission apparatus for transmitting data in units of packets, each of the packets have a sequence number and timestamp, said apparatus comprising:
- a receiving unit for receiving a retransmission request for a retransmission packet instead of a lost original packet;
- and
- a transmitting unit for performing retransmission of the retransmission packet having an original sequence number for the original packet and a sequence number for the retransmission packet.
A data transmission apparatus for receiving data in units of packets, each of the packets have a sequence number and timestamp, said apparatus comprising:
- a detection unit for detecting a lost packet;
- a transmitting unit for transmitting a retransmission request for a retransmission packet instead of an original packet that is the lost packet detected by the detecting step;
- and
- a receiving unit for performing reception of the retransmission packet which is retransmitted based on the retransmission request, the retransmission packet having an original sequence number for the original packet and a sequence number for the retransmission packet.
Dependencies are inferred from the claim text.