发明名称 |
PROCEDE DE TRANSMISSION DE DONNEES CHIFFREES, PROCEDE DE DECHIFFREMENT ASSOCIE, DISPOSITIFS POUR LEUR MISE EN OEUVRE, ET TERMINAL MOBILE LES INCORPORANT. |
摘要 |
<p>A process for transmitting encrypted data through a radio transmission channel having a frame structure such that a TDMA frame comprises at least time slots of a first type forming a traffic channel and at least one time slot of a second type forming an associated signaling channel, comprises steps according to which: a sequence of encrypted data packets is transmitted in the traffic channel on the basis of a determined time slot of the first type, whereas an associated cryptographic synchronization information cue is transmitted in the associated signaling channel inside a determined time slot of the second type, and a cryptographic synchronization delay information cue relating to the time gap between said determined time slot of the second type and said determined time slot of the first type, is also transmitted in the associated signaling channel.</p> |
申请公布号 |
FR2843258(B1) |
申请公布日期 |
2004.10.15 |
申请号 |
FR20020009668 |
申请日期 |
2002.07.30 |
申请人 |
EADS DEFENCE AND SECURITY NETWORKS |
发明人 |
MARQUE PUCHEU GERARD |
分类号 |
H04L9/12;(IPC1-7):H04L9/18;H04Q7/38;H04Q7/20;H04B7/212 |
主分类号 |
H04L9/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|