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1. 发明申请

WO9532598A3 COUPLING OF SDH SIGNALS IN A TS'S'TS'S'T COUPLING NETWORK 审中-公开
标题翻译： SDH信号与TS'S''''''''''''''''''''''联合网络的耦合
公开(公告)号：WO9532598A3
公开(公告)日：1995-12-14
申请号：PCT/FI9500287
申请日：1995-05-24
申请人： NOKIA TELECOMMUNICATIONS OY , KASURINEN TIMO , OESTERGAARD PATRIC
发明人： KASURINEN TIMO , OESTERGAARD PATRIC
IPC分类号： H04Q3/68 , H04Q11/04 , H04Q11/06
CPC分类号： H04Q3/685 , H04J2203/0012 , H04Q11/0478 , H04Q11/06
摘要： The invention relates to a method of switching STM-N signals in a TS'S'TS'S'T switching network in which the number of input and output ports of the centre stage (STS) is, for example, double that of the ports of the input or output stages, whereby the doubled portion is called extra blocks. In the method in accordance with the invention, first a switching solution is obtained for the signals that travel through the time and space switches (TS) of the input side in such a way that in the same time slot of the outputs of the time switches (T) there is not more than one signal that goes to the same output port of the switching network. Thereafter a solution is obtained for the outputs of the space switches (S) of the input side in such a way that to the same centre block (STS) of the centre stage there does not go more than one signal that is to be routed to the same output block (ST). Finally, it is a simple matter to obtain a solution through the centre stage (STS) and the output side (TS).

2. 发明申请

WO9532599A3 NON-BLOCKING SWITCHING NETWORK 审中-公开
标题翻译：非阻塞开关网络
公开(公告)号：WO9532599A3
公开(公告)日：1995-12-28
申请号：PCT/FI9500288
申请日：1995-05-24
申请人： NOKIA TELECOMMUNICATIONS OY , AHOLA REIJO , KASURINEN TIMO , KELLOCK HAMISH , SILLANPAEAE TERO , URALA REINO , VIITANEN ESA , WAINIO PEKKA
发明人： AHOLA REIJO , KASURINEN TIMO , KELLOCK HAMISH , SILLANPAEAE TERO , URALA REINO , VIITANEN ESA , WAINIO PEKKA
IPC分类号： H04L12/70 , H04L12/933 , H04Q11/04 , H04Q11/06
CPC分类号： H04L49/1553 , H04J2203/0012 , H04J2203/0041 , H04L2012/561 , H04Q11/0478 , H04Q11/06 , H04Q2213/1334
摘要： The invention discloses a cross connect architecture for SDH signals, in which the input stage is composed of parallel TS switch blocks (TSW-SSW), the centre stage (MSW) is composed of parallel time and space switch blocks (STS; TxT-S) and the output stage is a symmetrical mirror image of the input stage. It is advantageous that the centre stage have a large number of blocks (MSW) relative to the minimum need, even double as many, whereby in practice a non-blocking switching network is obtained. All the switch blocks have doubled control memories, which ensure interference-free reconnections.

3. 发明申请

WO9835466A3 SYNCHRONIZATION OF TELECOMMUNICATIONS NETWORK 审中-公开
标题翻译：电信网同步
公开(公告)号：WO9835466A3
公开(公告)日：1998-11-19
申请号：PCT/FI9800100
申请日：1998-02-03
申请人： NOKIA TELECOMMUNICATIONS OY , KASURINEN TIMO
发明人： KASURINEN TIMO
IPC分类号： H04B7/26 , H04J3/00 , H04J3/06
CPC分类号： H04B7/269 , H04J3/0679
摘要： The invention relates to a method for creating a synchronization network in a telecommunications network, comprising several nodes (D...M) interconnected with links and sending synchronization status messages indicating the quality level of the corresponding signal relative to the synchronization. At least one master clock (PRC) is used as a synchronization source for the network nodes, and the synchronization network is established by selecting, in accordance with a topology defined by the links, synchronization chains formed by successive nodes, through which chains the signal of at least said main clock is distributed to the nodes in the chain, and by defining for the different nodes in the chain a node-specific priority list including node interfaces at different priority levels, determining the synchronization source to be selected by the node when signals of equal quality levels are received on the node connections. In order that the synchronization may be implemented as faultlessly as possible in complex networks, a basis synchronization network is first established from the best synchronization chains between two different master clocks. Thereafter synchronization chains leading from other nodes to said synchronization network are included in said synchronization network by selecting the chains in an order of superiority in accordance with predetermined criteria.

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