发明名称 |
COMMUNICATION DEVICE AND COMMUNICATION SYSTEM |
摘要 |
High-quality communication using Multicast is realized in wireless communication where re-transmission processing is performed. The present invention includes: a program distribution unit (100) for distributing a program using the Multicast communication; a first communication path (Y1) for transmitting the program distributed from the program distribution unit (100); first communication units (102a, 102b); user terminals (105a to 105h); and a second communication path (103) which is a communication path between the first communication unit (102a, 102b) and the user terminal and is also a wireless communication path where the re-transmission of a frame is performed, wherein the first communication unit (102a or 102b) selects a Multicast frame of a program requested by the user terminal (105a to 105h) from the first communication path (Y1), converts the selected Multicast frame into a Unicast frame, and transmits the converted Unicast frame to the user terminal (105a to 105h). |
申请公布号 |
EP1732272(A4) |
申请公布日期 |
2010.07.07 |
申请号 |
EP20050727634 |
申请日期 |
2005.03.29 |
申请人 |
PANASONIC CORPORATION |
发明人 |
HIGASHIDA, MASAAKI;TANAKA, SHOTARO;HORITA, SEIJI;INOUE, TADAYUKI;TANIGUCHI, KENSHI;EZAKI, TOSHIHIRO;SAKANASHI, YASUAKI |
分类号 |
H04W84/12;H04L12/18;H04L12/70;H04L12/749;H04N7/173;H04W28/06 |
主分类号 |
H04W84/12 |
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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