| 发明名称 |
Mobile phone location system has multicast network does not require location server |
| 摘要 |
A mobile phone (5) location system has radio terminals (6) which register nearby phones in an Internet Protocol multicast network which shares location information and from which terminals are deleted when the last mobilephone deregisters.
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| 申请公布号 |
FR2817699(A1) |
申请公布日期 |
2002.06.07 |
| 申请号 |
FR20000015587 |
申请日期 |
2000.12.01 |
| 申请人 |
SAGEM SA |
发明人 |
MADENIAN MARC |
| 分类号 |
H04W8/02;H04W88/08;(IPC1-7):H04Q7/20;H04L12/56 |
主分类号 |
H04W8/02 |
| 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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