发明名称 |
Packet retransmission using priority information |
摘要 |
<p>A data transmitter (10) transmits packets each with a sequence number and a priority added. A data receiver (20) detects any packet loss by referring to the sequence numbers added to the packets, and if detecting any packet of high priority as having been lost, requests for packet retransmission. Based on information about thus detected packet loss, the data receiver (20) generates and transmits an RR packet (110) indicating the packet reception state. The data transmitter (10) extracts from the RR packet (110) a packet loss ratio (200), and therewith, changes manners of priority assignment. The manners are so changed that the packet of high priority is found with a lower ratio when the packet loss ratio (200) is high, and when the packet loss ratio (200) is low, found with a higher ratio. <IMAGE></p> |
申请公布号 |
EP1180870(B1) |
申请公布日期 |
2006.12.27 |
申请号 |
EP20010118873 |
申请日期 |
2001.08.16 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
HATA, KOICHI;MIYAZAKI, AKIHIRO;IMURA, KOJI;IDO, DAIJI |
分类号 |
H04L1/18;H04L29/14;H04L1/16;H04L12/70;H04L12/801;H04L12/833;H04L12/911 |
主分类号 |
H04L1/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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