DATA TRANSMISSION METHOD AND DATA TRANSMISSION APPARATUS
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Accused Products
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.
8 Citations
29 Claims
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1. (canceled)
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2. A data transmission method for transmitting data in units of packets, each of the packets have a sequence number and timestamp, said method comprising:
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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. - View Dependent Claims (3, 4, 5, 6, 7, 8)
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9. A data transmission method for receiving data in units of packets, each of the packets have a sequence number and timestamp, said method comprising:
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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. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A data transmission apparatus for transmitting data in units of packets, each of the packets have a sequence number and timestamp, said apparatus comprising:
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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. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A data transmission apparatus for receiving data in units of packets, each of the packets have a sequence number and timestamp, said apparatus comprising:
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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. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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Specification