发明名称 |
Förfarande och anordning för förverkligande av en abonnentspecifik scrambling och descrambling i ett abonnentnät |
摘要 |
To provide a simple and flexible equipment for data scrambling in a subscriber network based on a point-to-multipoint system, the scrambling sequences of the subscribers currently corresponding to the time slots of the transmission frame of a signal to be transmitted to subscriber terminals are stored in the central unit of the network, in RAM 61, and the scrambling sequence of a subscriber corresponding to the current time slot of the transmission frame is read to the scrambling means 67 located in the central unit to scramble the subscriber data by the subscriber's own scrambling sequence. The invention also relates to descrambling implemented in similar manner, using descrambling means 65. <IMAGE> |
申请公布号 |
FI97184(B) |
申请公布日期 |
1996.07.15 |
申请号 |
FI19940005222 |
申请日期 |
1994.11.07 |
申请人 |
NOKIA TELECOMMUNICATIONS OY |
发明人 |
HEIKKILAE, JUHA;HURME, HARRI |
分类号 |
H04L9/18;H04L25/03;(IPC1-7):H04L9/18 |
主分类号 |
H04L9/18 |
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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