| 发明名称 |
Method for transferring cipher information to members of a multicast group |
| 摘要 |
<p>A method for communicating encoded information to subscribers of a multicast-group in a mobile RF network involves transmitting an encoded key and an actual encoding sequence-number, or parts of such a sequence number, over an aerial interface, via links protected from unauthorized tapping and which are dedicated to the receivers of the encoded information.</p> |
| 申请公布号 |
EP1283618(A3) |
申请公布日期 |
2004.05.26 |
| 申请号 |
EP20020102011 |
申请日期 |
2002.07.09 |
| 申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
BECKMANN, MARK;ECKERT, MICHAEL;HANS, MARTIN;OTTE, ANDREAS |
| 分类号 |
H04L12/18;H04L29/06;H04W12/00;(IPC1-7):H04L29/06;H04L12/56;H04L9/08 |
主分类号 |
H04L12/18 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
